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Annotation of src/usr.bin/sqlite3/shell.c, Revision 1.5

1.1       espie       1: /*
                      2: ** 2001 September 15
                      3: **
                      4: ** The author disclaims copyright to this source code.  In place of
                      5: ** a legal notice, here is a blessing:
                      6: **
                      7: **    May you do good and not evil.
                      8: **    May you find forgiveness for yourself and forgive others.
                      9: **    May you share freely, never taking more than you give.
                     10: **
                     11: *************************************************************************
                     12: ** This file contains code to implement the "sqlite" command line
                     13: ** utility for accessing SQLite databases.
                     14: */
                     15: #if (defined(_WIN32) || defined(WIN32)) && !defined(_CRT_SECURE_NO_WARNINGS)
                     16: /* This needs to come before any includes for MSVC compiler */
                     17: #define _CRT_SECURE_NO_WARNINGS
                     18: #endif
                     19:
                     20: /*
                     21: ** Enable large-file support for fopen() and friends on unix.
                     22: */
                     23: #ifndef SQLITE_DISABLE_LFS
                     24: # define _LARGE_FILE       1
                     25: # ifndef _FILE_OFFSET_BITS
                     26: #   define _FILE_OFFSET_BITS 64
                     27: # endif
                     28: # define _LARGEFILE_SOURCE 1
                     29: #endif
                     30:
                     31: #include <stdlib.h>
                     32: #include <string.h>
                     33: #include <stdio.h>
                     34: #include <assert.h>
                     35: #include "sqlite3.h"
                     36: #include <ctype.h>
                     37: #include <stdarg.h>
                     38:
1.4       espie      39: #if !defined(_WIN32) && !defined(WIN32)
1.1       espie      40: # include <signal.h>
                     41: # if !defined(__RTP__) && !defined(_WRS_KERNEL)
                     42: #  include <pwd.h>
                     43: # endif
                     44: # include <unistd.h>
                     45: # include <sys/types.h>
                     46: #endif
                     47:
                     48: #ifdef HAVE_EDITLINE
                     49: # include <editline/editline.h>
                     50: #endif
                     51: #if defined(HAVE_READLINE) && HAVE_READLINE==1
                     52: # include <readline/readline.h>
                     53: # include <readline/history.h>
                     54: #endif
                     55: #if !defined(HAVE_EDITLINE) && (!defined(HAVE_READLINE) || HAVE_READLINE!=1)
                     56: # define readline(p) local_getline(p,stdin,0)
                     57: # define add_history(X)
                     58: # define read_history(X)
                     59: # define write_history(X)
                     60: # define stifle_history(X)
                     61: #endif
                     62:
                     63: #if defined(_WIN32) || defined(WIN32)
                     64: # include <io.h>
                     65: #define isatty(h) _isatty(h)
                     66: #define access(f,m) _access((f),(m))
1.4       espie      67: #undef popen
1.2       espie      68: #define popen(a,b) _popen((a),(b))
1.4       espie      69: #undef pclose
1.2       espie      70: #define pclose(x) _pclose(x)
1.1       espie      71: #else
                     72: /* Make sure isatty() has a prototype.
                     73: */
                     74: extern int isatty(int);
                     75: #endif
                     76:
                     77: #if defined(_WIN32_WCE)
                     78: /* Windows CE (arm-wince-mingw32ce-gcc) does not provide isatty()
                     79:  * thus we always assume that we have a console. That can be
                     80:  * overridden with the -batch command line option.
                     81:  */
                     82: #define isatty(x) 1
                     83: #endif
                     84:
                     85: /* True if the timer is enabled */
                     86: static int enableTimer = 0;
                     87:
                     88: /* ctype macros that work with signed characters */
                     89: #define IsSpace(X)  isspace((unsigned char)X)
                     90: #define IsDigit(X)  isdigit((unsigned char)X)
                     91: #define ToLower(X)  (char)tolower((unsigned char)X)
                     92:
1.4       espie      93: #if !defined(_WIN32) && !defined(WIN32) && !defined(_WRS_KERNEL)
1.1       espie      94: #include <sys/time.h>
                     95: #include <sys/resource.h>
                     96:
                     97: /* Saved resource information for the beginning of an operation */
                     98: static struct rusage sBegin;
                     99:
                    100: /*
                    101: ** Begin timing an operation
                    102: */
                    103: static void beginTimer(void){
                    104:   if( enableTimer ){
                    105:     getrusage(RUSAGE_SELF, &sBegin);
                    106:   }
                    107: }
                    108:
                    109: /* Return the difference of two time_structs in seconds */
                    110: static double timeDiff(struct timeval *pStart, struct timeval *pEnd){
                    111:   return (pEnd->tv_usec - pStart->tv_usec)*0.000001 +
                    112:          (double)(pEnd->tv_sec - pStart->tv_sec);
                    113: }
                    114:
                    115: /*
                    116: ** Print the timing results.
                    117: */
                    118: static void endTimer(void){
                    119:   if( enableTimer ){
                    120:     struct rusage sEnd;
                    121:     getrusage(RUSAGE_SELF, &sEnd);
                    122:     printf("CPU Time: user %f sys %f\n",
                    123:        timeDiff(&sBegin.ru_utime, &sEnd.ru_utime),
                    124:        timeDiff(&sBegin.ru_stime, &sEnd.ru_stime));
                    125:   }
                    126: }
                    127:
                    128: #define BEGIN_TIMER beginTimer()
                    129: #define END_TIMER endTimer()
                    130: #define HAS_TIMER 1
                    131:
                    132: #elif (defined(_WIN32) || defined(WIN32))
                    133:
                    134: #include <windows.h>
                    135:
                    136: /* Saved resource information for the beginning of an operation */
                    137: static HANDLE hProcess;
                    138: static FILETIME ftKernelBegin;
                    139: static FILETIME ftUserBegin;
                    140: typedef BOOL (WINAPI *GETPROCTIMES)(HANDLE, LPFILETIME, LPFILETIME, LPFILETIME, LPFILETIME);
                    141: static GETPROCTIMES getProcessTimesAddr = NULL;
                    142:
                    143: /*
                    144: ** Check to see if we have timer support.  Return 1 if necessary
                    145: ** support found (or found previously).
                    146: */
                    147: static int hasTimer(void){
                    148:   if( getProcessTimesAddr ){
                    149:     return 1;
                    150:   } else {
                    151:     /* GetProcessTimes() isn't supported in WIN95 and some other Windows versions.
                    152:     ** See if the version we are running on has it, and if it does, save off
                    153:     ** a pointer to it and the current process handle.
                    154:     */
                    155:     hProcess = GetCurrentProcess();
                    156:     if( hProcess ){
                    157:       HINSTANCE hinstLib = LoadLibrary(TEXT("Kernel32.dll"));
                    158:       if( NULL != hinstLib ){
                    159:         getProcessTimesAddr = (GETPROCTIMES) GetProcAddress(hinstLib, "GetProcessTimes");
                    160:         if( NULL != getProcessTimesAddr ){
                    161:           return 1;
                    162:         }
                    163:         FreeLibrary(hinstLib);
                    164:       }
                    165:     }
                    166:   }
                    167:   return 0;
                    168: }
                    169:
                    170: /*
                    171: ** Begin timing an operation
                    172: */
                    173: static void beginTimer(void){
                    174:   if( enableTimer && getProcessTimesAddr ){
                    175:     FILETIME ftCreation, ftExit;
                    176:     getProcessTimesAddr(hProcess, &ftCreation, &ftExit, &ftKernelBegin, &ftUserBegin);
                    177:   }
                    178: }
                    179:
                    180: /* Return the difference of two FILETIME structs in seconds */
                    181: static double timeDiff(FILETIME *pStart, FILETIME *pEnd){
                    182:   sqlite_int64 i64Start = *((sqlite_int64 *) pStart);
                    183:   sqlite_int64 i64End = *((sqlite_int64 *) pEnd);
                    184:   return (double) ((i64End - i64Start) / 10000000.0);
                    185: }
                    186:
                    187: /*
                    188: ** Print the timing results.
                    189: */
                    190: static void endTimer(void){
                    191:   if( enableTimer && getProcessTimesAddr){
                    192:     FILETIME ftCreation, ftExit, ftKernelEnd, ftUserEnd;
                    193:     getProcessTimesAddr(hProcess, &ftCreation, &ftExit, &ftKernelEnd, &ftUserEnd);
                    194:     printf("CPU Time: user %f sys %f\n",
                    195:        timeDiff(&ftUserBegin, &ftUserEnd),
                    196:        timeDiff(&ftKernelBegin, &ftKernelEnd));
                    197:   }
                    198: }
                    199:
                    200: #define BEGIN_TIMER beginTimer()
                    201: #define END_TIMER endTimer()
                    202: #define HAS_TIMER hasTimer()
                    203:
                    204: #else
                    205: #define BEGIN_TIMER
                    206: #define END_TIMER
                    207: #define HAS_TIMER 0
                    208: #endif
                    209:
                    210: /*
                    211: ** Used to prevent warnings about unused parameters
                    212: */
                    213: #define UNUSED_PARAMETER(x) (void)(x)
                    214:
                    215: /*
                    216: ** If the following flag is set, then command execution stops
                    217: ** at an error if we are not interactive.
                    218: */
                    219: static int bail_on_error = 0;
                    220:
                    221: /*
                    222: ** Threat stdin as an interactive input if the following variable
                    223: ** is true.  Otherwise, assume stdin is connected to a file or pipe.
                    224: */
                    225: static int stdin_is_interactive = 1;
                    226:
                    227: /*
                    228: ** The following is the open SQLite database.  We make a pointer
                    229: ** to this database a static variable so that it can be accessed
                    230: ** by the SIGINT handler to interrupt database processing.
                    231: */
                    232: static sqlite3 *db = 0;
                    233:
                    234: /*
                    235: ** True if an interrupt (Control-C) has been received.
                    236: */
                    237: static volatile int seenInterrupt = 0;
                    238:
                    239: /*
                    240: ** This is the name of our program. It is set in main(), used
                    241: ** in a number of other places, mostly for error messages.
                    242: */
                    243: static char *Argv0;
                    244:
                    245: /*
                    246: ** Prompt strings. Initialized in main. Settable with
                    247: **   .prompt main continue
                    248: */
                    249: static char mainPrompt[20];     /* First line prompt. default: "sqlite> "*/
                    250: static char continuePrompt[20]; /* Continuation prompt. default: "   ...> " */
                    251:
                    252: /*
                    253: ** Write I/O traces to the following stream.
                    254: */
                    255: #ifdef SQLITE_ENABLE_IOTRACE
                    256: static FILE *iotrace = 0;
                    257: #endif
                    258:
                    259: /*
                    260: ** This routine works like printf in that its first argument is a
                    261: ** format string and subsequent arguments are values to be substituted
                    262: ** in place of % fields.  The result of formatting this string
                    263: ** is written to iotrace.
                    264: */
                    265: #ifdef SQLITE_ENABLE_IOTRACE
                    266: static void iotracePrintf(const char *zFormat, ...){
                    267:   va_list ap;
                    268:   char *z;
                    269:   if( iotrace==0 ) return;
                    270:   va_start(ap, zFormat);
                    271:   z = sqlite3_vmprintf(zFormat, ap);
                    272:   va_end(ap);
                    273:   fprintf(iotrace, "%s", z);
                    274:   sqlite3_free(z);
                    275: }
                    276: #endif
                    277:
                    278:
                    279: /*
                    280: ** Determines if a string is a number of not.
                    281: */
                    282: static int isNumber(const char *z, int *realnum){
                    283:   if( *z=='-' || *z=='+' ) z++;
                    284:   if( !IsDigit(*z) ){
                    285:     return 0;
                    286:   }
                    287:   z++;
                    288:   if( realnum ) *realnum = 0;
                    289:   while( IsDigit(*z) ){ z++; }
                    290:   if( *z=='.' ){
                    291:     z++;
                    292:     if( !IsDigit(*z) ) return 0;
                    293:     while( IsDigit(*z) ){ z++; }
                    294:     if( realnum ) *realnum = 1;
                    295:   }
                    296:   if( *z=='e' || *z=='E' ){
                    297:     z++;
                    298:     if( *z=='+' || *z=='-' ) z++;
                    299:     if( !IsDigit(*z) ) return 0;
                    300:     while( IsDigit(*z) ){ z++; }
                    301:     if( realnum ) *realnum = 1;
                    302:   }
                    303:   return *z==0;
                    304: }
                    305:
                    306: /*
                    307: ** A global char* and an SQL function to access its current value
                    308: ** from within an SQL statement. This program used to use the
                    309: ** sqlite_exec_printf() API to substitue a string into an SQL statement.
                    310: ** The correct way to do this with sqlite3 is to use the bind API, but
                    311: ** since the shell is built around the callback paradigm it would be a lot
                    312: ** of work. Instead just use this hack, which is quite harmless.
                    313: */
                    314: static const char *zShellStatic = 0;
                    315: static void shellstaticFunc(
                    316:   sqlite3_context *context,
                    317:   int argc,
                    318:   sqlite3_value **argv
                    319: ){
                    320:   assert( 0==argc );
                    321:   assert( zShellStatic );
                    322:   UNUSED_PARAMETER(argc);
                    323:   UNUSED_PARAMETER(argv);
                    324:   sqlite3_result_text(context, zShellStatic, -1, SQLITE_STATIC);
                    325: }
                    326:
                    327:
                    328: /*
                    329: ** This routine reads a line of text from FILE in, stores
                    330: ** the text in memory obtained from malloc() and returns a pointer
                    331: ** to the text.  NULL is returned at end of file, or if malloc()
                    332: ** fails.
                    333: **
                    334: ** The interface is like "readline" but no command-line editing
                    335: ** is done.
                    336: */
                    337: static char *local_getline(char *zPrompt, FILE *in, int csvFlag){
                    338:   char *zLine;
                    339:   int nLine;
                    340:   int n;
                    341:   int inQuote = 0;
                    342:
                    343:   if( zPrompt && *zPrompt ){
                    344:     printf("%s",zPrompt);
                    345:     fflush(stdout);
                    346:   }
                    347:   nLine = 100;
                    348:   zLine = malloc( nLine );
                    349:   if( zLine==0 ) return 0;
                    350:   n = 0;
                    351:   while( 1 ){
                    352:     if( n+100>nLine ){
                    353:       nLine = nLine*2 + 100;
                    354:       zLine = realloc(zLine, nLine);
                    355:       if( zLine==0 ) return 0;
                    356:     }
                    357:     if( fgets(&zLine[n], nLine - n, in)==0 ){
                    358:       if( n==0 ){
                    359:         free(zLine);
                    360:         return 0;
                    361:       }
                    362:       zLine[n] = 0;
                    363:       break;
                    364:     }
                    365:     while( zLine[n] ){
                    366:       if( zLine[n]=='"' ) inQuote = !inQuote;
                    367:       n++;
                    368:     }
                    369:     if( n>0 && zLine[n-1]=='\n' && (!inQuote || !csvFlag) ){
                    370:       n--;
                    371:       if( n>0 && zLine[n-1]=='\r' ) n--;
                    372:       zLine[n] = 0;
                    373:       break;
                    374:     }
                    375:   }
                    376:   zLine = realloc( zLine, n+1 );
                    377:   return zLine;
                    378: }
                    379:
                    380: /*
                    381: ** Retrieve a single line of input text.
                    382: **
                    383: ** zPrior is a string of prior text retrieved.  If not the empty
                    384: ** string, then issue a continuation prompt.
                    385: */
                    386: static char *one_input_line(const char *zPrior, FILE *in){
                    387:   char *zPrompt;
                    388:   char *zResult;
                    389:   if( in!=0 ){
                    390:     return local_getline(0, in, 0);
                    391:   }
                    392:   if( zPrior && zPrior[0] ){
                    393:     zPrompt = continuePrompt;
                    394:   }else{
                    395:     zPrompt = mainPrompt;
                    396:   }
                    397:   zResult = readline(zPrompt);
                    398: #if defined(HAVE_READLINE) && HAVE_READLINE==1
                    399:   if( zResult && *zResult ) add_history(zResult);
                    400: #endif
                    401:   return zResult;
                    402: }
                    403:
                    404: struct previous_mode_data {
                    405:   int valid;        /* Is there legit data in here? */
                    406:   int mode;
                    407:   int showHeader;
                    408:   int colWidth[100];
                    409: };
                    410:
                    411: /*
                    412: ** An pointer to an instance of this structure is passed from
                    413: ** the main program to the callback.  This is used to communicate
                    414: ** state and mode information.
                    415: */
                    416: struct callback_data {
                    417:   sqlite3 *db;           /* The database */
                    418:   int echoOn;            /* True to echo input commands */
                    419:   int statsOn;           /* True to display memory stats before each finalize */
                    420:   int cnt;               /* Number of records displayed so far */
                    421:   FILE *out;             /* Write results here */
1.2       espie     422:   FILE *traceOut;        /* Output for sqlite3_trace() */
1.1       espie     423:   int nErr;              /* Number of errors seen */
                    424:   int mode;              /* An output mode setting */
                    425:   int writableSchema;    /* True if PRAGMA writable_schema=ON */
                    426:   int showHeader;        /* True to show column names in List or Column mode */
                    427:   char *zDestTable;      /* Name of destination table when MODE_Insert */
                    428:   char separator[20];    /* Separator character for MODE_List */
                    429:   int colWidth[100];     /* Requested width of each column when in column mode*/
                    430:   int actualWidth[100];  /* Actual width of each column */
                    431:   char nullvalue[20];    /* The text to print when a NULL comes back from
                    432:                          ** the database */
                    433:   struct previous_mode_data explainPrev;
                    434:                          /* Holds the mode information just before
                    435:                          ** .explain ON */
                    436:   char outfile[FILENAME_MAX]; /* Filename for *out */
                    437:   const char *zDbFilename;    /* name of the database file */
                    438:   const char *zVfs;           /* Name of VFS to use */
                    439:   sqlite3_stmt *pStmt;   /* Current statement if any. */
                    440:   FILE *pLog;            /* Write log output here */
                    441: };
                    442:
                    443: /*
                    444: ** These are the allowed modes.
                    445: */
                    446: #define MODE_Line     0  /* One column per line.  Blank line between records */
                    447: #define MODE_Column   1  /* One record per line in neat columns */
                    448: #define MODE_List     2  /* One record per line with a separator */
                    449: #define MODE_Semi     3  /* Same as MODE_List but append ";" to each line */
                    450: #define MODE_Html     4  /* Generate an XHTML table */
                    451: #define MODE_Insert   5  /* Generate SQL "insert" statements */
                    452: #define MODE_Tcl      6  /* Generate ANSI-C or TCL quoted elements */
                    453: #define MODE_Csv      7  /* Quote strings, numbers are plain */
                    454: #define MODE_Explain  8  /* Like MODE_Column, but do not truncate data */
                    455:
                    456: static const char *modeDescr[] = {
                    457:   "line",
                    458:   "column",
                    459:   "list",
                    460:   "semi",
                    461:   "html",
                    462:   "insert",
                    463:   "tcl",
                    464:   "csv",
                    465:   "explain",
                    466: };
                    467:
                    468: /*
                    469: ** Number of elements in an array
                    470: */
                    471: #define ArraySize(X)  (int)(sizeof(X)/sizeof(X[0]))
                    472:
                    473: /*
                    474: ** Compute a string length that is limited to what can be stored in
                    475: ** lower 30 bits of a 32-bit signed integer.
                    476: */
                    477: static int strlen30(const char *z){
                    478:   const char *z2 = z;
                    479:   while( *z2 ){ z2++; }
                    480:   return 0x3fffffff & (int)(z2 - z);
                    481: }
                    482:
                    483: /*
                    484: ** A callback for the sqlite3_log() interface.
                    485: */
                    486: static void shellLog(void *pArg, int iErrCode, const char *zMsg){
                    487:   struct callback_data *p = (struct callback_data*)pArg;
                    488:   if( p->pLog==0 ) return;
                    489:   fprintf(p->pLog, "(%d) %s\n", iErrCode, zMsg);
                    490:   fflush(p->pLog);
                    491: }
                    492:
                    493: /*
                    494: ** Output the given string as a hex-encoded blob (eg. X'1234' )
                    495: */
                    496: static void output_hex_blob(FILE *out, const void *pBlob, int nBlob){
                    497:   int i;
                    498:   char *zBlob = (char *)pBlob;
                    499:   fprintf(out,"X'");
1.2       espie     500:   for(i=0; i<nBlob; i++){ fprintf(out,"%02x",zBlob[i]&0xff); }
1.1       espie     501:   fprintf(out,"'");
                    502: }
                    503:
                    504: /*
                    505: ** Output the given string as a quoted string using SQL quoting conventions.
                    506: */
                    507: static void output_quoted_string(FILE *out, const char *z){
                    508:   int i;
                    509:   int nSingle = 0;
                    510:   for(i=0; z[i]; i++){
                    511:     if( z[i]=='\'' ) nSingle++;
                    512:   }
                    513:   if( nSingle==0 ){
                    514:     fprintf(out,"'%s'",z);
                    515:   }else{
                    516:     fprintf(out,"'");
                    517:     while( *z ){
                    518:       for(i=0; z[i] && z[i]!='\''; i++){}
                    519:       if( i==0 ){
                    520:         fprintf(out,"''");
                    521:         z++;
                    522:       }else if( z[i]=='\'' ){
                    523:         fprintf(out,"%.*s''",i,z);
                    524:         z += i+1;
                    525:       }else{
                    526:         fprintf(out,"%s",z);
                    527:         break;
                    528:       }
                    529:     }
                    530:     fprintf(out,"'");
                    531:   }
                    532: }
                    533:
                    534: /*
                    535: ** Output the given string as a quoted according to C or TCL quoting rules.
                    536: */
                    537: static void output_c_string(FILE *out, const char *z){
                    538:   unsigned int c;
                    539:   fputc('"', out);
                    540:   while( (c = *(z++))!=0 ){
                    541:     if( c=='\\' ){
                    542:       fputc(c, out);
                    543:       fputc(c, out);
1.5     ! espie     544:     }else if( c=='"' ){
        !           545:       fputc('\\', out);
        !           546:       fputc('"', out);
1.1       espie     547:     }else if( c=='\t' ){
                    548:       fputc('\\', out);
                    549:       fputc('t', out);
                    550:     }else if( c=='\n' ){
                    551:       fputc('\\', out);
                    552:       fputc('n', out);
                    553:     }else if( c=='\r' ){
                    554:       fputc('\\', out);
                    555:       fputc('r', out);
                    556:     }else if( !isprint(c) ){
                    557:       fprintf(out, "\\%03o", c&0xff);
                    558:     }else{
                    559:       fputc(c, out);
                    560:     }
                    561:   }
                    562:   fputc('"', out);
                    563: }
                    564:
                    565: /*
                    566: ** Output the given string with characters that are special to
                    567: ** HTML escaped.
                    568: */
                    569: static void output_html_string(FILE *out, const char *z){
                    570:   int i;
                    571:   while( *z ){
                    572:     for(i=0;   z[i]
                    573:             && z[i]!='<'
                    574:             && z[i]!='&'
                    575:             && z[i]!='>'
                    576:             && z[i]!='\"'
                    577:             && z[i]!='\'';
                    578:         i++){}
                    579:     if( i>0 ){
                    580:       fprintf(out,"%.*s",i,z);
                    581:     }
                    582:     if( z[i]=='<' ){
                    583:       fprintf(out,"&lt;");
                    584:     }else if( z[i]=='&' ){
                    585:       fprintf(out,"&amp;");
                    586:     }else if( z[i]=='>' ){
                    587:       fprintf(out,"&gt;");
                    588:     }else if( z[i]=='\"' ){
                    589:       fprintf(out,"&quot;");
                    590:     }else if( z[i]=='\'' ){
                    591:       fprintf(out,"&#39;");
                    592:     }else{
                    593:       break;
                    594:     }
                    595:     z += i + 1;
                    596:   }
                    597: }
                    598:
                    599: /*
                    600: ** If a field contains any character identified by a 1 in the following
                    601: ** array, then the string must be quoted for CSV.
                    602: */
                    603: static const char needCsvQuote[] = {
                    604:   1, 1, 1, 1, 1, 1, 1, 1,   1, 1, 1, 1, 1, 1, 1, 1,
                    605:   1, 1, 1, 1, 1, 1, 1, 1,   1, 1, 1, 1, 1, 1, 1, 1,
                    606:   1, 0, 1, 0, 0, 0, 0, 1,   0, 0, 0, 0, 0, 0, 0, 0,
                    607:   0, 0, 0, 0, 0, 0, 0, 0,   0, 0, 0, 0, 0, 0, 0, 0,
                    608:   0, 0, 0, 0, 0, 0, 0, 0,   0, 0, 0, 0, 0, 0, 0, 0,
                    609:   0, 0, 0, 0, 0, 0, 0, 0,   0, 0, 0, 0, 0, 0, 0, 0,
                    610:   0, 0, 0, 0, 0, 0, 0, 0,   0, 0, 0, 0, 0, 0, 0, 0,
                    611:   0, 0, 0, 0, 0, 0, 0, 0,   0, 0, 0, 0, 0, 0, 0, 1,
                    612:   1, 1, 1, 1, 1, 1, 1, 1,   1, 1, 1, 1, 1, 1, 1, 1,
                    613:   1, 1, 1, 1, 1, 1, 1, 1,   1, 1, 1, 1, 1, 1, 1, 1,
                    614:   1, 1, 1, 1, 1, 1, 1, 1,   1, 1, 1, 1, 1, 1, 1, 1,
                    615:   1, 1, 1, 1, 1, 1, 1, 1,   1, 1, 1, 1, 1, 1, 1, 1,
                    616:   1, 1, 1, 1, 1, 1, 1, 1,   1, 1, 1, 1, 1, 1, 1, 1,
                    617:   1, 1, 1, 1, 1, 1, 1, 1,   1, 1, 1, 1, 1, 1, 1, 1,
                    618:   1, 1, 1, 1, 1, 1, 1, 1,   1, 1, 1, 1, 1, 1, 1, 1,
                    619:   1, 1, 1, 1, 1, 1, 1, 1,   1, 1, 1, 1, 1, 1, 1, 1,
                    620: };
                    621:
                    622: /*
                    623: ** Output a single term of CSV.  Actually, p->separator is used for
                    624: ** the separator, which may or may not be a comma.  p->nullvalue is
                    625: ** the null value.  Strings are quoted if necessary.
                    626: */
                    627: static void output_csv(struct callback_data *p, const char *z, int bSep){
                    628:   FILE *out = p->out;
                    629:   if( z==0 ){
                    630:     fprintf(out,"%s",p->nullvalue);
                    631:   }else{
                    632:     int i;
                    633:     int nSep = strlen30(p->separator);
                    634:     for(i=0; z[i]; i++){
                    635:       if( needCsvQuote[((unsigned char*)z)[i]]
                    636:          || (z[i]==p->separator[0] &&
                    637:              (nSep==1 || memcmp(z, p->separator, nSep)==0)) ){
                    638:         i = 0;
                    639:         break;
                    640:       }
                    641:     }
                    642:     if( i==0 ){
                    643:       putc('"', out);
                    644:       for(i=0; z[i]; i++){
                    645:         if( z[i]=='"' ) putc('"', out);
                    646:         putc(z[i], out);
                    647:       }
                    648:       putc('"', out);
                    649:     }else{
                    650:       fprintf(out, "%s", z);
                    651:     }
                    652:   }
                    653:   if( bSep ){
                    654:     fprintf(p->out, "%s", p->separator);
                    655:   }
                    656: }
                    657:
                    658: #ifdef SIGINT
                    659: /*
                    660: ** This routine runs when the user presses Ctrl-C
                    661: */
                    662: static void interrupt_handler(int NotUsed){
                    663:   UNUSED_PARAMETER(NotUsed);
                    664:   seenInterrupt = 1;
                    665:   if( db ) sqlite3_interrupt(db);
                    666: }
                    667: #endif
                    668:
                    669: /*
                    670: ** This is the callback routine that the shell
                    671: ** invokes for each row of a query result.
                    672: */
                    673: static int shell_callback(void *pArg, int nArg, char **azArg, char **azCol, int *aiType){
                    674:   int i;
                    675:   struct callback_data *p = (struct callback_data*)pArg;
                    676:
                    677:   switch( p->mode ){
                    678:     case MODE_Line: {
                    679:       int w = 5;
                    680:       if( azArg==0 ) break;
                    681:       for(i=0; i<nArg; i++){
                    682:         int len = strlen30(azCol[i] ? azCol[i] : "");
                    683:         if( len>w ) w = len;
                    684:       }
                    685:       if( p->cnt++>0 ) fprintf(p->out,"\n");
                    686:       for(i=0; i<nArg; i++){
                    687:         fprintf(p->out,"%*s = %s\n", w, azCol[i],
                    688:                 azArg[i] ? azArg[i] : p->nullvalue);
                    689:       }
                    690:       break;
                    691:     }
                    692:     case MODE_Explain:
                    693:     case MODE_Column: {
                    694:       if( p->cnt++==0 ){
                    695:         for(i=0; i<nArg; i++){
                    696:           int w, n;
                    697:           if( i<ArraySize(p->colWidth) ){
                    698:             w = p->colWidth[i];
                    699:           }else{
                    700:             w = 0;
                    701:           }
1.5     ! espie     702:           if( w==0 ){
1.1       espie     703:             w = strlen30(azCol[i] ? azCol[i] : "");
                    704:             if( w<10 ) w = 10;
                    705:             n = strlen30(azArg && azArg[i] ? azArg[i] : p->nullvalue);
                    706:             if( w<n ) w = n;
                    707:           }
                    708:           if( i<ArraySize(p->actualWidth) ){
                    709:             p->actualWidth[i] = w;
                    710:           }
                    711:           if( p->showHeader ){
1.5     ! espie     712:             if( w<0 ){
        !           713:               fprintf(p->out,"%*.*s%s",-w,-w,azCol[i], i==nArg-1 ? "\n": "  ");
        !           714:             }else{
        !           715:               fprintf(p->out,"%-*.*s%s",w,w,azCol[i], i==nArg-1 ? "\n": "  ");
        !           716:             }
1.1       espie     717:           }
                    718:         }
                    719:         if( p->showHeader ){
                    720:           for(i=0; i<nArg; i++){
                    721:             int w;
                    722:             if( i<ArraySize(p->actualWidth) ){
                    723:                w = p->actualWidth[i];
1.5     ! espie     724:                if( w<0 ) w = -w;
1.1       espie     725:             }else{
                    726:                w = 10;
                    727:             }
                    728:             fprintf(p->out,"%-*.*s%s",w,w,"-----------------------------------"
                    729:                    "----------------------------------------------------------",
                    730:                     i==nArg-1 ? "\n": "  ");
                    731:           }
                    732:         }
                    733:       }
                    734:       if( azArg==0 ) break;
                    735:       for(i=0; i<nArg; i++){
                    736:         int w;
                    737:         if( i<ArraySize(p->actualWidth) ){
                    738:            w = p->actualWidth[i];
                    739:         }else{
                    740:            w = 10;
                    741:         }
                    742:         if( p->mode==MODE_Explain && azArg[i] &&
                    743:            strlen30(azArg[i])>w ){
                    744:           w = strlen30(azArg[i]);
                    745:         }
1.5     ! espie     746:         if( w<0 ){
        !           747:           fprintf(p->out,"%*.*s%s",-w,-w,
        !           748:               azArg[i] ? azArg[i] : p->nullvalue, i==nArg-1 ? "\n": "  ");
        !           749:         }else{
        !           750:           fprintf(p->out,"%-*.*s%s",w,w,
        !           751:               azArg[i] ? azArg[i] : p->nullvalue, i==nArg-1 ? "\n": "  ");
        !           752:         }
1.1       espie     753:       }
                    754:       break;
                    755:     }
                    756:     case MODE_Semi:
                    757:     case MODE_List: {
                    758:       if( p->cnt++==0 && p->showHeader ){
                    759:         for(i=0; i<nArg; i++){
                    760:           fprintf(p->out,"%s%s",azCol[i], i==nArg-1 ? "\n" : p->separator);
                    761:         }
                    762:       }
                    763:       if( azArg==0 ) break;
                    764:       for(i=0; i<nArg; i++){
                    765:         char *z = azArg[i];
                    766:         if( z==0 ) z = p->nullvalue;
                    767:         fprintf(p->out, "%s", z);
                    768:         if( i<nArg-1 ){
                    769:           fprintf(p->out, "%s", p->separator);
                    770:         }else if( p->mode==MODE_Semi ){
                    771:           fprintf(p->out, ";\n");
                    772:         }else{
                    773:           fprintf(p->out, "\n");
                    774:         }
                    775:       }
                    776:       break;
                    777:     }
                    778:     case MODE_Html: {
                    779:       if( p->cnt++==0 && p->showHeader ){
                    780:         fprintf(p->out,"<TR>");
                    781:         for(i=0; i<nArg; i++){
                    782:           fprintf(p->out,"<TH>");
                    783:           output_html_string(p->out, azCol[i]);
                    784:           fprintf(p->out,"</TH>\n");
                    785:         }
                    786:         fprintf(p->out,"</TR>\n");
                    787:       }
                    788:       if( azArg==0 ) break;
                    789:       fprintf(p->out,"<TR>");
                    790:       for(i=0; i<nArg; i++){
                    791:         fprintf(p->out,"<TD>");
                    792:         output_html_string(p->out, azArg[i] ? azArg[i] : p->nullvalue);
                    793:         fprintf(p->out,"</TD>\n");
                    794:       }
                    795:       fprintf(p->out,"</TR>\n");
                    796:       break;
                    797:     }
                    798:     case MODE_Tcl: {
                    799:       if( p->cnt++==0 && p->showHeader ){
                    800:         for(i=0; i<nArg; i++){
                    801:           output_c_string(p->out,azCol[i] ? azCol[i] : "");
1.5     ! espie     802:           if(i<nArg-1) fprintf(p->out, "%s", p->separator);
1.1       espie     803:         }
                    804:         fprintf(p->out,"\n");
                    805:       }
                    806:       if( azArg==0 ) break;
                    807:       for(i=0; i<nArg; i++){
                    808:         output_c_string(p->out, azArg[i] ? azArg[i] : p->nullvalue);
1.5     ! espie     809:         if(i<nArg-1) fprintf(p->out, "%s", p->separator);
1.1       espie     810:       }
                    811:       fprintf(p->out,"\n");
                    812:       break;
                    813:     }
                    814:     case MODE_Csv: {
                    815:       if( p->cnt++==0 && p->showHeader ){
                    816:         for(i=0; i<nArg; i++){
                    817:           output_csv(p, azCol[i] ? azCol[i] : "", i<nArg-1);
                    818:         }
                    819:         fprintf(p->out,"\n");
                    820:       }
                    821:       if( azArg==0 ) break;
                    822:       for(i=0; i<nArg; i++){
                    823:         output_csv(p, azArg[i], i<nArg-1);
                    824:       }
                    825:       fprintf(p->out,"\n");
                    826:       break;
                    827:     }
                    828:     case MODE_Insert: {
                    829:       p->cnt++;
                    830:       if( azArg==0 ) break;
                    831:       fprintf(p->out,"INSERT INTO %s VALUES(",p->zDestTable);
                    832:       for(i=0; i<nArg; i++){
                    833:         char *zSep = i>0 ? ",": "";
                    834:         if( (azArg[i]==0) || (aiType && aiType[i]==SQLITE_NULL) ){
                    835:           fprintf(p->out,"%sNULL",zSep);
                    836:         }else if( aiType && aiType[i]==SQLITE_TEXT ){
                    837:           if( zSep[0] ) fprintf(p->out,"%s",zSep);
                    838:           output_quoted_string(p->out, azArg[i]);
                    839:         }else if( aiType && (aiType[i]==SQLITE_INTEGER || aiType[i]==SQLITE_FLOAT) ){
                    840:           fprintf(p->out,"%s%s",zSep, azArg[i]);
                    841:         }else if( aiType && aiType[i]==SQLITE_BLOB && p->pStmt ){
                    842:           const void *pBlob = sqlite3_column_blob(p->pStmt, i);
                    843:           int nBlob = sqlite3_column_bytes(p->pStmt, i);
                    844:           if( zSep[0] ) fprintf(p->out,"%s",zSep);
                    845:           output_hex_blob(p->out, pBlob, nBlob);
                    846:         }else if( isNumber(azArg[i], 0) ){
                    847:           fprintf(p->out,"%s%s",zSep, azArg[i]);
                    848:         }else{
                    849:           if( zSep[0] ) fprintf(p->out,"%s",zSep);
                    850:           output_quoted_string(p->out, azArg[i]);
                    851:         }
                    852:       }
                    853:       fprintf(p->out,");\n");
                    854:       break;
                    855:     }
                    856:   }
                    857:   return 0;
                    858: }
                    859:
                    860: /*
                    861: ** This is the callback routine that the SQLite library
                    862: ** invokes for each row of a query result.
                    863: */
                    864: static int callback(void *pArg, int nArg, char **azArg, char **azCol){
                    865:   /* since we don't have type info, call the shell_callback with a NULL value */
                    866:   return shell_callback(pArg, nArg, azArg, azCol, NULL);
                    867: }
                    868:
                    869: /*
                    870: ** Set the destination table field of the callback_data structure to
                    871: ** the name of the table given.  Escape any quote characters in the
                    872: ** table name.
                    873: */
                    874: static void set_table_name(struct callback_data *p, const char *zName){
                    875:   int i, n;
                    876:   int needQuote;
                    877:   char *z;
                    878:
                    879:   if( p->zDestTable ){
                    880:     free(p->zDestTable);
                    881:     p->zDestTable = 0;
                    882:   }
                    883:   if( zName==0 ) return;
                    884:   needQuote = !isalpha((unsigned char)*zName) && *zName!='_';
                    885:   for(i=n=0; zName[i]; i++, n++){
                    886:     if( !isalnum((unsigned char)zName[i]) && zName[i]!='_' ){
                    887:       needQuote = 1;
                    888:       if( zName[i]=='\'' ) n++;
                    889:     }
                    890:   }
                    891:   if( needQuote ) n += 2;
                    892:   z = p->zDestTable = malloc( n+1 );
                    893:   if( z==0 ){
                    894:     fprintf(stderr,"Error: out of memory\n");
                    895:     exit(1);
                    896:   }
                    897:   n = 0;
                    898:   if( needQuote ) z[n++] = '\'';
                    899:   for(i=0; zName[i]; i++){
                    900:     z[n++] = zName[i];
                    901:     if( zName[i]=='\'' ) z[n++] = '\'';
                    902:   }
                    903:   if( needQuote ) z[n++] = '\'';
                    904:   z[n] = 0;
                    905: }
                    906:
                    907: /* zIn is either a pointer to a NULL-terminated string in memory obtained
                    908: ** from malloc(), or a NULL pointer. The string pointed to by zAppend is
                    909: ** added to zIn, and the result returned in memory obtained from malloc().
                    910: ** zIn, if it was not NULL, is freed.
                    911: **
                    912: ** If the third argument, quote, is not '\0', then it is used as a
                    913: ** quote character for zAppend.
                    914: */
                    915: static char *appendText(char *zIn, char const *zAppend, char quote){
                    916:   int len;
                    917:   int i;
                    918:   int nAppend = strlen30(zAppend);
                    919:   int nIn = (zIn?strlen30(zIn):0);
                    920:
                    921:   len = nAppend+nIn+1;
                    922:   if( quote ){
                    923:     len += 2;
                    924:     for(i=0; i<nAppend; i++){
                    925:       if( zAppend[i]==quote ) len++;
                    926:     }
                    927:   }
                    928:
                    929:   zIn = (char *)realloc(zIn, len);
                    930:   if( !zIn ){
                    931:     return 0;
                    932:   }
                    933:
                    934:   if( quote ){
                    935:     char *zCsr = &zIn[nIn];
                    936:     *zCsr++ = quote;
                    937:     for(i=0; i<nAppend; i++){
                    938:       *zCsr++ = zAppend[i];
                    939:       if( zAppend[i]==quote ) *zCsr++ = quote;
                    940:     }
                    941:     *zCsr++ = quote;
                    942:     *zCsr++ = '\0';
                    943:     assert( (zCsr-zIn)==len );
                    944:   }else{
                    945:     memcpy(&zIn[nIn], zAppend, nAppend);
                    946:     zIn[len-1] = '\0';
                    947:   }
                    948:
                    949:   return zIn;
                    950: }
                    951:
                    952:
                    953: /*
                    954: ** Execute a query statement that will generate SQL output.  Print
                    955: ** the result columns, comma-separated, on a line and then add a
                    956: ** semicolon terminator to the end of that line.
                    957: **
                    958: ** If the number of columns is 1 and that column contains text "--"
                    959: ** then write the semicolon on a separate line.  That way, if a
                    960: ** "--" comment occurs at the end of the statement, the comment
                    961: ** won't consume the semicolon terminator.
                    962: */
                    963: static int run_table_dump_query(
                    964:   struct callback_data *p, /* Query context */
                    965:   const char *zSelect,     /* SELECT statement to extract content */
                    966:   const char *zFirstRow    /* Print before first row, if not NULL */
                    967: ){
                    968:   sqlite3_stmt *pSelect;
                    969:   int rc;
                    970:   int nResult;
                    971:   int i;
                    972:   const char *z;
                    973:   rc = sqlite3_prepare(p->db, zSelect, -1, &pSelect, 0);
                    974:   if( rc!=SQLITE_OK || !pSelect ){
                    975:     fprintf(p->out, "/**** ERROR: (%d) %s *****/\n", rc, sqlite3_errmsg(p->db));
                    976:     p->nErr++;
                    977:     return rc;
                    978:   }
                    979:   rc = sqlite3_step(pSelect);
                    980:   nResult = sqlite3_column_count(pSelect);
                    981:   while( rc==SQLITE_ROW ){
                    982:     if( zFirstRow ){
                    983:       fprintf(p->out, "%s", zFirstRow);
                    984:       zFirstRow = 0;
                    985:     }
                    986:     z = (const char*)sqlite3_column_text(pSelect, 0);
                    987:     fprintf(p->out, "%s", z);
                    988:     for(i=1; i<nResult; i++){
                    989:       fprintf(p->out, ",%s", sqlite3_column_text(pSelect, i));
                    990:     }
                    991:     if( z==0 ) z = "";
                    992:     while( z[0] && (z[0]!='-' || z[1]!='-') ) z++;
                    993:     if( z[0] ){
                    994:       fprintf(p->out, "\n;\n");
                    995:     }else{
                    996:       fprintf(p->out, ";\n");
                    997:     }
                    998:     rc = sqlite3_step(pSelect);
                    999:   }
                   1000:   rc = sqlite3_finalize(pSelect);
                   1001:   if( rc!=SQLITE_OK ){
                   1002:     fprintf(p->out, "/**** ERROR: (%d) %s *****/\n", rc, sqlite3_errmsg(p->db));
                   1003:     p->nErr++;
                   1004:   }
                   1005:   return rc;
                   1006: }
                   1007:
                   1008: /*
                   1009: ** Allocate space and save off current error string.
                   1010: */
                   1011: static char *save_err_msg(
                   1012:   sqlite3 *db            /* Database to query */
                   1013: ){
                   1014:   int nErrMsg = 1+strlen30(sqlite3_errmsg(db));
                   1015:   char *zErrMsg = sqlite3_malloc(nErrMsg);
                   1016:   if( zErrMsg ){
                   1017:     memcpy(zErrMsg, sqlite3_errmsg(db), nErrMsg);
                   1018:   }
                   1019:   return zErrMsg;
                   1020: }
                   1021:
                   1022: /*
                   1023: ** Display memory stats.
                   1024: */
                   1025: static int display_stats(
                   1026:   sqlite3 *db,                /* Database to query */
                   1027:   struct callback_data *pArg, /* Pointer to struct callback_data */
                   1028:   int bReset                  /* True to reset the stats */
                   1029: ){
                   1030:   int iCur;
                   1031:   int iHiwtr;
                   1032:
                   1033:   if( pArg && pArg->out ){
                   1034:
                   1035:     iHiwtr = iCur = -1;
                   1036:     sqlite3_status(SQLITE_STATUS_MEMORY_USED, &iCur, &iHiwtr, bReset);
                   1037:     fprintf(pArg->out, "Memory Used:                         %d (max %d) bytes\n", iCur, iHiwtr);
                   1038:     iHiwtr = iCur = -1;
                   1039:     sqlite3_status(SQLITE_STATUS_MALLOC_COUNT, &iCur, &iHiwtr, bReset);
                   1040:     fprintf(pArg->out, "Number of Outstanding Allocations:   %d (max %d)\n", iCur, iHiwtr);
                   1041: /*
                   1042: ** Not currently used by the CLI.
                   1043: **    iHiwtr = iCur = -1;
                   1044: **    sqlite3_status(SQLITE_STATUS_PAGECACHE_USED, &iCur, &iHiwtr, bReset);
                   1045: **    fprintf(pArg->out, "Number of Pcache Pages Used:         %d (max %d) pages\n", iCur, iHiwtr);
                   1046: */
                   1047:     iHiwtr = iCur = -1;
                   1048:     sqlite3_status(SQLITE_STATUS_PAGECACHE_OVERFLOW, &iCur, &iHiwtr, bReset);
                   1049:     fprintf(pArg->out, "Number of Pcache Overflow Bytes:     %d (max %d) bytes\n", iCur, iHiwtr);
                   1050: /*
                   1051: ** Not currently used by the CLI.
                   1052: **    iHiwtr = iCur = -1;
                   1053: **    sqlite3_status(SQLITE_STATUS_SCRATCH_USED, &iCur, &iHiwtr, bReset);
                   1054: **    fprintf(pArg->out, "Number of Scratch Allocations Used:  %d (max %d)\n", iCur, iHiwtr);
                   1055: */
                   1056:     iHiwtr = iCur = -1;
                   1057:     sqlite3_status(SQLITE_STATUS_SCRATCH_OVERFLOW, &iCur, &iHiwtr, bReset);
                   1058:     fprintf(pArg->out, "Number of Scratch Overflow Bytes:    %d (max %d) bytes\n", iCur, iHiwtr);
                   1059:     iHiwtr = iCur = -1;
                   1060:     sqlite3_status(SQLITE_STATUS_MALLOC_SIZE, &iCur, &iHiwtr, bReset);
                   1061:     fprintf(pArg->out, "Largest Allocation:                  %d bytes\n", iHiwtr);
                   1062:     iHiwtr = iCur = -1;
                   1063:     sqlite3_status(SQLITE_STATUS_PAGECACHE_SIZE, &iCur, &iHiwtr, bReset);
                   1064:     fprintf(pArg->out, "Largest Pcache Allocation:           %d bytes\n", iHiwtr);
                   1065:     iHiwtr = iCur = -1;
                   1066:     sqlite3_status(SQLITE_STATUS_SCRATCH_SIZE, &iCur, &iHiwtr, bReset);
                   1067:     fprintf(pArg->out, "Largest Scratch Allocation:          %d bytes\n", iHiwtr);
                   1068: #ifdef YYTRACKMAXSTACKDEPTH
                   1069:     iHiwtr = iCur = -1;
                   1070:     sqlite3_status(SQLITE_STATUS_PARSER_STACK, &iCur, &iHiwtr, bReset);
                   1071:     fprintf(pArg->out, "Deepest Parser Stack:                %d (max %d)\n", iCur, iHiwtr);
                   1072: #endif
                   1073:   }
                   1074:
                   1075:   if( pArg && pArg->out && db ){
                   1076:     iHiwtr = iCur = -1;
                   1077:     sqlite3_db_status(db, SQLITE_DBSTATUS_LOOKASIDE_USED, &iCur, &iHiwtr, bReset);
                   1078:     fprintf(pArg->out, "Lookaside Slots Used:                %d (max %d)\n", iCur, iHiwtr);
                   1079:     sqlite3_db_status(db, SQLITE_DBSTATUS_LOOKASIDE_HIT, &iCur, &iHiwtr, bReset);
                   1080:     fprintf(pArg->out, "Successful lookaside attempts:       %d\n", iHiwtr);
                   1081:     sqlite3_db_status(db, SQLITE_DBSTATUS_LOOKASIDE_MISS_SIZE, &iCur, &iHiwtr, bReset);
                   1082:     fprintf(pArg->out, "Lookaside failures due to size:      %d\n", iHiwtr);
                   1083:     sqlite3_db_status(db, SQLITE_DBSTATUS_LOOKASIDE_MISS_FULL, &iCur, &iHiwtr, bReset);
                   1084:     fprintf(pArg->out, "Lookaside failures due to OOM:       %d\n", iHiwtr);
                   1085:     iHiwtr = iCur = -1;
                   1086:     sqlite3_db_status(db, SQLITE_DBSTATUS_CACHE_USED, &iCur, &iHiwtr, bReset);
                   1087:     fprintf(pArg->out, "Pager Heap Usage:                    %d bytes\n", iCur);    iHiwtr = iCur = -1;
                   1088:     sqlite3_db_status(db, SQLITE_DBSTATUS_CACHE_HIT, &iCur, &iHiwtr, 1);
                   1089:     fprintf(pArg->out, "Page cache hits:                     %d\n", iCur);
                   1090:     iHiwtr = iCur = -1;
                   1091:     sqlite3_db_status(db, SQLITE_DBSTATUS_CACHE_MISS, &iCur, &iHiwtr, 1);
                   1092:     fprintf(pArg->out, "Page cache misses:                   %d\n", iCur);
                   1093:     iHiwtr = iCur = -1;
1.2       espie    1094:     sqlite3_db_status(db, SQLITE_DBSTATUS_CACHE_WRITE, &iCur, &iHiwtr, 1);
                   1095:     fprintf(pArg->out, "Page cache writes:                   %d\n", iCur);
                   1096:     iHiwtr = iCur = -1;
1.1       espie    1097:     sqlite3_db_status(db, SQLITE_DBSTATUS_SCHEMA_USED, &iCur, &iHiwtr, bReset);
                   1098:     fprintf(pArg->out, "Schema Heap Usage:                   %d bytes\n", iCur);
                   1099:     iHiwtr = iCur = -1;
                   1100:     sqlite3_db_status(db, SQLITE_DBSTATUS_STMT_USED, &iCur, &iHiwtr, bReset);
                   1101:     fprintf(pArg->out, "Statement Heap/Lookaside Usage:      %d bytes\n", iCur);
                   1102:   }
                   1103:
                   1104:   if( pArg && pArg->out && db && pArg->pStmt ){
                   1105:     iCur = sqlite3_stmt_status(pArg->pStmt, SQLITE_STMTSTATUS_FULLSCAN_STEP, bReset);
                   1106:     fprintf(pArg->out, "Fullscan Steps:                      %d\n", iCur);
                   1107:     iCur = sqlite3_stmt_status(pArg->pStmt, SQLITE_STMTSTATUS_SORT, bReset);
                   1108:     fprintf(pArg->out, "Sort Operations:                     %d\n", iCur);
                   1109:     iCur = sqlite3_stmt_status(pArg->pStmt, SQLITE_STMTSTATUS_AUTOINDEX, bReset);
                   1110:     fprintf(pArg->out, "Autoindex Inserts:                   %d\n", iCur);
                   1111:   }
                   1112:
                   1113:   return 0;
                   1114: }
                   1115:
                   1116: /*
                   1117: ** Execute a statement or set of statements.  Print
                   1118: ** any result rows/columns depending on the current mode
                   1119: ** set via the supplied callback.
                   1120: **
                   1121: ** This is very similar to SQLite's built-in sqlite3_exec()
                   1122: ** function except it takes a slightly different callback
                   1123: ** and callback data argument.
                   1124: */
                   1125: static int shell_exec(
                   1126:   sqlite3 *db,                                /* An open database */
                   1127:   const char *zSql,                           /* SQL to be evaluated */
                   1128:   int (*xCallback)(void*,int,char**,char**,int*),   /* Callback function */
                   1129:                                               /* (not the same as sqlite3_exec) */
                   1130:   struct callback_data *pArg,                 /* Pointer to struct callback_data */
                   1131:   char **pzErrMsg                             /* Error msg written here */
                   1132: ){
                   1133:   sqlite3_stmt *pStmt = NULL;     /* Statement to execute. */
                   1134:   int rc = SQLITE_OK;             /* Return Code */
                   1135:   int rc2;
                   1136:   const char *zLeftover;          /* Tail of unprocessed SQL */
                   1137:
                   1138:   if( pzErrMsg ){
                   1139:     *pzErrMsg = NULL;
                   1140:   }
                   1141:
                   1142:   while( zSql[0] && (SQLITE_OK == rc) ){
                   1143:     rc = sqlite3_prepare_v2(db, zSql, -1, &pStmt, &zLeftover);
                   1144:     if( SQLITE_OK != rc ){
                   1145:       if( pzErrMsg ){
                   1146:         *pzErrMsg = save_err_msg(db);
                   1147:       }
                   1148:     }else{
                   1149:       if( !pStmt ){
                   1150:         /* this happens for a comment or white-space */
                   1151:         zSql = zLeftover;
                   1152:         while( IsSpace(zSql[0]) ) zSql++;
                   1153:         continue;
                   1154:       }
                   1155:
                   1156:       /* save off the prepared statment handle and reset row count */
                   1157:       if( pArg ){
                   1158:         pArg->pStmt = pStmt;
                   1159:         pArg->cnt = 0;
                   1160:       }
                   1161:
                   1162:       /* echo the sql statement if echo on */
                   1163:       if( pArg && pArg->echoOn ){
                   1164:         const char *zStmtSql = sqlite3_sql(pStmt);
                   1165:         fprintf(pArg->out, "%s\n", zStmtSql ? zStmtSql : zSql);
                   1166:       }
                   1167:
                   1168:       /* Output TESTCTRL_EXPLAIN text of requested */
                   1169:       if( pArg && pArg->mode==MODE_Explain ){
                   1170:         const char *zExplain = 0;
                   1171:         sqlite3_test_control(SQLITE_TESTCTRL_EXPLAIN_STMT, pStmt, &zExplain);
                   1172:         if( zExplain && zExplain[0] ){
                   1173:           fprintf(pArg->out, "%s", zExplain);
                   1174:         }
                   1175:       }
                   1176:
                   1177:       /* perform the first step.  this will tell us if we
                   1178:       ** have a result set or not and how wide it is.
                   1179:       */
                   1180:       rc = sqlite3_step(pStmt);
                   1181:       /* if we have a result set... */
                   1182:       if( SQLITE_ROW == rc ){
                   1183:         /* if we have a callback... */
                   1184:         if( xCallback ){
                   1185:           /* allocate space for col name ptr, value ptr, and type */
                   1186:           int nCol = sqlite3_column_count(pStmt);
                   1187:           void *pData = sqlite3_malloc(3*nCol*sizeof(const char*) + 1);
                   1188:           if( !pData ){
                   1189:             rc = SQLITE_NOMEM;
                   1190:           }else{
                   1191:             char **azCols = (char **)pData;      /* Names of result columns */
                   1192:             char **azVals = &azCols[nCol];       /* Results */
                   1193:             int *aiTypes = (int *)&azVals[nCol]; /* Result types */
                   1194:             int i;
                   1195:             assert(sizeof(int) <= sizeof(char *));
                   1196:             /* save off ptrs to column names */
                   1197:             for(i=0; i<nCol; i++){
                   1198:               azCols[i] = (char *)sqlite3_column_name(pStmt, i);
                   1199:             }
                   1200:             do{
                   1201:               /* extract the data and data types */
                   1202:               for(i=0; i<nCol; i++){
                   1203:                 azVals[i] = (char *)sqlite3_column_text(pStmt, i);
                   1204:                 aiTypes[i] = sqlite3_column_type(pStmt, i);
                   1205:                 if( !azVals[i] && (aiTypes[i]!=SQLITE_NULL) ){
                   1206:                   rc = SQLITE_NOMEM;
                   1207:                   break; /* from for */
                   1208:                 }
                   1209:               } /* end for */
                   1210:
                   1211:               /* if data and types extracted successfully... */
                   1212:               if( SQLITE_ROW == rc ){
                   1213:                 /* call the supplied callback with the result row data */
                   1214:                 if( xCallback(pArg, nCol, azVals, azCols, aiTypes) ){
                   1215:                   rc = SQLITE_ABORT;
                   1216:                 }else{
                   1217:                   rc = sqlite3_step(pStmt);
                   1218:                 }
                   1219:               }
                   1220:             } while( SQLITE_ROW == rc );
                   1221:             sqlite3_free(pData);
                   1222:           }
                   1223:         }else{
                   1224:           do{
                   1225:             rc = sqlite3_step(pStmt);
                   1226:           } while( rc == SQLITE_ROW );
                   1227:         }
                   1228:       }
                   1229:
                   1230:       /* print usage stats if stats on */
                   1231:       if( pArg && pArg->statsOn ){
                   1232:         display_stats(db, pArg, 0);
                   1233:       }
                   1234:
                   1235:       /* Finalize the statement just executed. If this fails, save a
                   1236:       ** copy of the error message. Otherwise, set zSql to point to the
                   1237:       ** next statement to execute. */
                   1238:       rc2 = sqlite3_finalize(pStmt);
                   1239:       if( rc!=SQLITE_NOMEM ) rc = rc2;
                   1240:       if( rc==SQLITE_OK ){
                   1241:         zSql = zLeftover;
                   1242:         while( IsSpace(zSql[0]) ) zSql++;
                   1243:       }else if( pzErrMsg ){
                   1244:         *pzErrMsg = save_err_msg(db);
                   1245:       }
                   1246:
                   1247:       /* clear saved stmt handle */
                   1248:       if( pArg ){
                   1249:         pArg->pStmt = NULL;
                   1250:       }
                   1251:     }
                   1252:   } /* end while */
                   1253:
                   1254:   return rc;
                   1255: }
                   1256:
                   1257:
                   1258: /*
                   1259: ** This is a different callback routine used for dumping the database.
                   1260: ** Each row received by this callback consists of a table name,
                   1261: ** the table type ("index" or "table") and SQL to create the table.
                   1262: ** This routine should print text sufficient to recreate the table.
                   1263: */
                   1264: static int dump_callback(void *pArg, int nArg, char **azArg, char **azCol){
                   1265:   int rc;
                   1266:   const char *zTable;
                   1267:   const char *zType;
                   1268:   const char *zSql;
                   1269:   const char *zPrepStmt = 0;
                   1270:   struct callback_data *p = (struct callback_data *)pArg;
                   1271:
                   1272:   UNUSED_PARAMETER(azCol);
                   1273:   if( nArg!=3 ) return 1;
                   1274:   zTable = azArg[0];
                   1275:   zType = azArg[1];
                   1276:   zSql = azArg[2];
                   1277:
                   1278:   if( strcmp(zTable, "sqlite_sequence")==0 ){
                   1279:     zPrepStmt = "DELETE FROM sqlite_sequence;\n";
                   1280:   }else if( strcmp(zTable, "sqlite_stat1")==0 ){
                   1281:     fprintf(p->out, "ANALYZE sqlite_master;\n");
                   1282:   }else if( strncmp(zTable, "sqlite_", 7)==0 ){
                   1283:     return 0;
                   1284:   }else if( strncmp(zSql, "CREATE VIRTUAL TABLE", 20)==0 ){
                   1285:     char *zIns;
                   1286:     if( !p->writableSchema ){
                   1287:       fprintf(p->out, "PRAGMA writable_schema=ON;\n");
                   1288:       p->writableSchema = 1;
                   1289:     }
                   1290:     zIns = sqlite3_mprintf(
                   1291:        "INSERT INTO sqlite_master(type,name,tbl_name,rootpage,sql)"
                   1292:        "VALUES('table','%q','%q',0,'%q');",
                   1293:        zTable, zTable, zSql);
                   1294:     fprintf(p->out, "%s\n", zIns);
                   1295:     sqlite3_free(zIns);
                   1296:     return 0;
                   1297:   }else{
                   1298:     fprintf(p->out, "%s;\n", zSql);
                   1299:   }
                   1300:
                   1301:   if( strcmp(zType, "table")==0 ){
                   1302:     sqlite3_stmt *pTableInfo = 0;
                   1303:     char *zSelect = 0;
                   1304:     char *zTableInfo = 0;
                   1305:     char *zTmp = 0;
                   1306:     int nRow = 0;
                   1307:
                   1308:     zTableInfo = appendText(zTableInfo, "PRAGMA table_info(", 0);
                   1309:     zTableInfo = appendText(zTableInfo, zTable, '"');
                   1310:     zTableInfo = appendText(zTableInfo, ");", 0);
                   1311:
                   1312:     rc = sqlite3_prepare(p->db, zTableInfo, -1, &pTableInfo, 0);
                   1313:     free(zTableInfo);
                   1314:     if( rc!=SQLITE_OK || !pTableInfo ){
                   1315:       return 1;
                   1316:     }
                   1317:
                   1318:     zSelect = appendText(zSelect, "SELECT 'INSERT INTO ' || ", 0);
1.2       espie    1319:     /* Always quote the table name, even if it appears to be pure ascii,
                   1320:     ** in case it is a keyword. Ex:  INSERT INTO "table" ... */
                   1321:     zTmp = appendText(zTmp, zTable, '"');
1.1       espie    1322:     if( zTmp ){
                   1323:       zSelect = appendText(zSelect, zTmp, '\'');
1.2       espie    1324:       free(zTmp);
1.1       espie    1325:     }
                   1326:     zSelect = appendText(zSelect, " || ' VALUES(' || ", 0);
                   1327:     rc = sqlite3_step(pTableInfo);
                   1328:     while( rc==SQLITE_ROW ){
                   1329:       const char *zText = (const char *)sqlite3_column_text(pTableInfo, 1);
                   1330:       zSelect = appendText(zSelect, "quote(", 0);
                   1331:       zSelect = appendText(zSelect, zText, '"');
                   1332:       rc = sqlite3_step(pTableInfo);
                   1333:       if( rc==SQLITE_ROW ){
                   1334:         zSelect = appendText(zSelect, "), ", 0);
                   1335:       }else{
                   1336:         zSelect = appendText(zSelect, ") ", 0);
                   1337:       }
                   1338:       nRow++;
                   1339:     }
                   1340:     rc = sqlite3_finalize(pTableInfo);
                   1341:     if( rc!=SQLITE_OK || nRow==0 ){
                   1342:       free(zSelect);
                   1343:       return 1;
                   1344:     }
                   1345:     zSelect = appendText(zSelect, "|| ')' FROM  ", 0);
                   1346:     zSelect = appendText(zSelect, zTable, '"');
                   1347:
                   1348:     rc = run_table_dump_query(p, zSelect, zPrepStmt);
                   1349:     if( rc==SQLITE_CORRUPT ){
                   1350:       zSelect = appendText(zSelect, " ORDER BY rowid DESC", 0);
                   1351:       run_table_dump_query(p, zSelect, 0);
                   1352:     }
1.2       espie    1353:     free(zSelect);
1.1       espie    1354:   }
                   1355:   return 0;
                   1356: }
                   1357:
                   1358: /*
                   1359: ** Run zQuery.  Use dump_callback() as the callback routine so that
                   1360: ** the contents of the query are output as SQL statements.
                   1361: **
                   1362: ** If we get a SQLITE_CORRUPT error, rerun the query after appending
                   1363: ** "ORDER BY rowid DESC" to the end.
                   1364: */
                   1365: static int run_schema_dump_query(
                   1366:   struct callback_data *p,
                   1367:   const char *zQuery
                   1368: ){
                   1369:   int rc;
                   1370:   char *zErr = 0;
                   1371:   rc = sqlite3_exec(p->db, zQuery, dump_callback, p, &zErr);
                   1372:   if( rc==SQLITE_CORRUPT ){
                   1373:     char *zQ2;
                   1374:     int len = strlen30(zQuery);
                   1375:     fprintf(p->out, "/****** CORRUPTION ERROR *******/\n");
                   1376:     if( zErr ){
                   1377:       fprintf(p->out, "/****** %s ******/\n", zErr);
                   1378:       sqlite3_free(zErr);
                   1379:       zErr = 0;
                   1380:     }
                   1381:     zQ2 = malloc( len+100 );
                   1382:     if( zQ2==0 ) return rc;
1.2       espie    1383:     sqlite3_snprintf(len+100, zQ2, "%s ORDER BY rowid DESC", zQuery);
1.1       espie    1384:     rc = sqlite3_exec(p->db, zQ2, dump_callback, p, &zErr);
                   1385:     if( rc ){
                   1386:       fprintf(p->out, "/****** ERROR: %s ******/\n", zErr);
                   1387:     }else{
                   1388:       rc = SQLITE_CORRUPT;
                   1389:     }
                   1390:     sqlite3_free(zErr);
                   1391:     free(zQ2);
                   1392:   }
                   1393:   return rc;
                   1394: }
                   1395:
                   1396: /*
                   1397: ** Text of a help message
                   1398: */
                   1399: static char zHelp[] =
                   1400:   ".backup ?DB? FILE      Backup DB (default \"main\") to FILE\n"
                   1401:   ".bail ON|OFF           Stop after hitting an error.  Default OFF\n"
                   1402:   ".databases             List names and files of attached databases\n"
                   1403:   ".dump ?TABLE? ...      Dump the database in an SQL text format\n"
                   1404:   "                         If TABLE specified, only dump tables matching\n"
                   1405:   "                         LIKE pattern TABLE.\n"
                   1406:   ".echo ON|OFF           Turn command echo on or off\n"
                   1407:   ".exit                  Exit this program\n"
                   1408:   ".explain ?ON|OFF?      Turn output mode suitable for EXPLAIN on or off.\n"
                   1409:   "                         With no args, it turns EXPLAIN on.\n"
                   1410:   ".header(s) ON|OFF      Turn display of headers on or off\n"
                   1411:   ".help                  Show this message\n"
                   1412:   ".import FILE TABLE     Import data from FILE into TABLE\n"
                   1413:   ".indices ?TABLE?       Show names of all indices\n"
                   1414:   "                         If TABLE specified, only show indices for tables\n"
                   1415:   "                         matching LIKE pattern TABLE.\n"
                   1416: #ifdef SQLITE_ENABLE_IOTRACE
                   1417:   ".iotrace FILE          Enable I/O diagnostic logging to FILE\n"
                   1418: #endif
                   1419: #ifndef SQLITE_OMIT_LOAD_EXTENSION
                   1420:   ".load FILE ?ENTRY?     Load an extension library\n"
                   1421: #endif
                   1422:   ".log FILE|off          Turn logging on or off.  FILE can be stderr/stdout\n"
                   1423:   ".mode MODE ?TABLE?     Set output mode where MODE is one of:\n"
                   1424:   "                         csv      Comma-separated values\n"
                   1425:   "                         column   Left-aligned columns.  (See .width)\n"
                   1426:   "                         html     HTML <table> code\n"
                   1427:   "                         insert   SQL insert statements for TABLE\n"
                   1428:   "                         line     One value per line\n"
                   1429:   "                         list     Values delimited by .separator string\n"
                   1430:   "                         tabs     Tab-separated values\n"
                   1431:   "                         tcl      TCL list elements\n"
1.5     ! espie    1432:   ".nullvalue STRING      Use STRING in place of NULL values\n"
1.1       espie    1433:   ".output FILENAME       Send output to FILENAME\n"
                   1434:   ".output stdout         Send output to the screen\n"
1.5     ! espie    1435:   ".print STRING...       Print literal STRING\n"
1.1       espie    1436:   ".prompt MAIN CONTINUE  Replace the standard prompts\n"
                   1437:   ".quit                  Exit this program\n"
                   1438:   ".read FILENAME         Execute SQL in FILENAME\n"
                   1439:   ".restore ?DB? FILE     Restore content of DB (default \"main\") from FILE\n"
                   1440:   ".schema ?TABLE?        Show the CREATE statements\n"
                   1441:   "                         If TABLE specified, only show tables matching\n"
                   1442:   "                         LIKE pattern TABLE.\n"
                   1443:   ".separator STRING      Change separator used by output mode and .import\n"
                   1444:   ".show                  Show the current values for various settings\n"
                   1445:   ".stats ON|OFF          Turn stats on or off\n"
                   1446:   ".tables ?TABLE?        List names of tables\n"
                   1447:   "                         If TABLE specified, only list tables matching\n"
                   1448:   "                         LIKE pattern TABLE.\n"
                   1449:   ".timeout MS            Try opening locked tables for MS milliseconds\n"
1.2       espie    1450:   ".trace FILE|off        Output each SQL statement as it is run\n"
1.1       espie    1451:   ".vfsname ?AUX?         Print the name of the VFS stack\n"
                   1452:   ".width NUM1 NUM2 ...   Set column widths for \"column\" mode\n"
                   1453: ;
                   1454:
                   1455: static char zTimerHelp[] =
                   1456:   ".timer ON|OFF          Turn the CPU timer measurement on or off\n"
                   1457: ;
                   1458:
                   1459: /* Forward reference */
                   1460: static int process_input(struct callback_data *p, FILE *in);
                   1461:
                   1462: /*
                   1463: ** Make sure the database is open.  If it is not, then open it.  If
                   1464: ** the database fails to open, print an error message and exit.
                   1465: */
                   1466: static void open_db(struct callback_data *p){
                   1467:   if( p->db==0 ){
1.4       espie    1468:     sqlite3_initialize();
1.1       espie    1469:     sqlite3_open(p->zDbFilename, &p->db);
                   1470:     db = p->db;
                   1471:     if( db && sqlite3_errcode(db)==SQLITE_OK ){
                   1472:       sqlite3_create_function(db, "shellstatic", 0, SQLITE_UTF8, 0,
                   1473:           shellstaticFunc, 0, 0);
                   1474:     }
                   1475:     if( db==0 || SQLITE_OK!=sqlite3_errcode(db) ){
                   1476:       fprintf(stderr,"Error: unable to open database \"%s\": %s\n",
                   1477:           p->zDbFilename, sqlite3_errmsg(db));
                   1478:       exit(1);
                   1479:     }
                   1480: #ifndef SQLITE_OMIT_LOAD_EXTENSION
                   1481:     sqlite3_enable_load_extension(p->db, 1);
                   1482: #endif
                   1483:   }
                   1484: }
                   1485:
                   1486: /*
                   1487: ** Do C-language style dequoting.
                   1488: **
                   1489: **    \t    -> tab
                   1490: **    \n    -> newline
                   1491: **    \r    -> carriage return
                   1492: **    \NNN  -> ascii character NNN in octal
                   1493: **    \\    -> backslash
                   1494: */
                   1495: static void resolve_backslashes(char *z){
                   1496:   int i, j;
                   1497:   char c;
                   1498:   for(i=j=0; (c = z[i])!=0; i++, j++){
                   1499:     if( c=='\\' ){
                   1500:       c = z[++i];
                   1501:       if( c=='n' ){
                   1502:         c = '\n';
                   1503:       }else if( c=='t' ){
                   1504:         c = '\t';
                   1505:       }else if( c=='r' ){
                   1506:         c = '\r';
                   1507:       }else if( c>='0' && c<='7' ){
                   1508:         c -= '0';
                   1509:         if( z[i+1]>='0' && z[i+1]<='7' ){
                   1510:           i++;
                   1511:           c = (c<<3) + z[i] - '0';
                   1512:           if( z[i+1]>='0' && z[i+1]<='7' ){
                   1513:             i++;
                   1514:             c = (c<<3) + z[i] - '0';
                   1515:           }
                   1516:         }
                   1517:       }
                   1518:     }
                   1519:     z[j] = c;
                   1520:   }
                   1521:   z[j] = 0;
                   1522: }
                   1523:
                   1524: /*
                   1525: ** Interpret zArg as a boolean value.  Return either 0 or 1.
                   1526: */
                   1527: static int booleanValue(char *zArg){
                   1528:   int val = atoi(zArg);
                   1529:   int j;
                   1530:   for(j=0; zArg[j]; j++){
                   1531:     zArg[j] = ToLower(zArg[j]);
                   1532:   }
                   1533:   if( strcmp(zArg,"on")==0 ){
                   1534:     val = 1;
                   1535:   }else if( strcmp(zArg,"yes")==0 ){
                   1536:     val = 1;
                   1537:   }
                   1538:   return val;
                   1539: }
                   1540:
                   1541: /*
1.2       espie    1542: ** Close an output file, assuming it is not stderr or stdout
                   1543: */
                   1544: static void output_file_close(FILE *f){
                   1545:   if( f && f!=stdout && f!=stderr ) fclose(f);
                   1546: }
                   1547:
                   1548: /*
                   1549: ** Try to open an output file.   The names "stdout" and "stderr" are
                   1550: ** recognized and do the right thing.  NULL is returned if the output
                   1551: ** filename is "off".
                   1552: */
                   1553: static FILE *output_file_open(const char *zFile){
                   1554:   FILE *f;
                   1555:   if( strcmp(zFile,"stdout")==0 ){
                   1556:     f = stdout;
                   1557:   }else if( strcmp(zFile, "stderr")==0 ){
                   1558:     f = stderr;
                   1559:   }else if( strcmp(zFile, "off")==0 ){
                   1560:     f = 0;
                   1561:   }else{
                   1562:     f = fopen(zFile, "wb");
                   1563:     if( f==0 ){
                   1564:       fprintf(stderr, "Error: cannot open \"%s\"\n", zFile);
                   1565:     }
                   1566:   }
                   1567:   return f;
                   1568: }
                   1569:
                   1570: /*
                   1571: ** A routine for handling output from sqlite3_trace().
                   1572: */
                   1573: static void sql_trace_callback(void *pArg, const char *z){
                   1574:   FILE *f = (FILE*)pArg;
                   1575:   if( f ) fprintf(f, "%s\n", z);
                   1576: }
                   1577:
                   1578: /*
                   1579: ** A no-op routine that runs with the ".breakpoint" doc-command.  This is
                   1580: ** a useful spot to set a debugger breakpoint.
                   1581: */
                   1582: static void test_breakpoint(void){
                   1583:   static int nCall = 0;
                   1584:   nCall++;
                   1585: }
                   1586:
                   1587: /*
1.1       espie    1588: ** If an input line begins with "." then invoke this routine to
                   1589: ** process that line.
                   1590: **
                   1591: ** Return 1 on error, 2 to exit, and 0 otherwise.
                   1592: */
                   1593: static int do_meta_command(char *zLine, struct callback_data *p){
                   1594:   int i = 1;
                   1595:   int nArg = 0;
                   1596:   int n, c;
                   1597:   int rc = 0;
                   1598:   char *azArg[50];
                   1599:
                   1600:   /* Parse the input line into tokens.
                   1601:   */
                   1602:   while( zLine[i] && nArg<ArraySize(azArg) ){
                   1603:     while( IsSpace(zLine[i]) ){ i++; }
                   1604:     if( zLine[i]==0 ) break;
                   1605:     if( zLine[i]=='\'' || zLine[i]=='"' ){
                   1606:       int delim = zLine[i++];
                   1607:       azArg[nArg++] = &zLine[i];
                   1608:       while( zLine[i] && zLine[i]!=delim ){ i++; }
                   1609:       if( zLine[i]==delim ){
                   1610:         zLine[i++] = 0;
                   1611:       }
                   1612:       if( delim=='"' ) resolve_backslashes(azArg[nArg-1]);
                   1613:     }else{
                   1614:       azArg[nArg++] = &zLine[i];
                   1615:       while( zLine[i] && !IsSpace(zLine[i]) ){ i++; }
                   1616:       if( zLine[i] ) zLine[i++] = 0;
                   1617:       resolve_backslashes(azArg[nArg-1]);
                   1618:     }
                   1619:   }
                   1620:
                   1621:   /* Process the input line.
                   1622:   */
                   1623:   if( nArg==0 ) return 0; /* no tokens, no error */
                   1624:   n = strlen30(azArg[0]);
                   1625:   c = azArg[0][0];
                   1626:   if( c=='b' && n>=3 && strncmp(azArg[0], "backup", n)==0 && nArg>1 && nArg<4){
                   1627:     const char *zDestFile;
                   1628:     const char *zDb;
                   1629:     sqlite3 *pDest;
                   1630:     sqlite3_backup *pBackup;
                   1631:     if( nArg==2 ){
                   1632:       zDestFile = azArg[1];
                   1633:       zDb = "main";
                   1634:     }else{
                   1635:       zDestFile = azArg[2];
                   1636:       zDb = azArg[1];
                   1637:     }
                   1638:     rc = sqlite3_open(zDestFile, &pDest);
                   1639:     if( rc!=SQLITE_OK ){
                   1640:       fprintf(stderr, "Error: cannot open \"%s\"\n", zDestFile);
                   1641:       sqlite3_close(pDest);
                   1642:       return 1;
                   1643:     }
                   1644:     open_db(p);
                   1645:     pBackup = sqlite3_backup_init(pDest, "main", p->db, zDb);
                   1646:     if( pBackup==0 ){
                   1647:       fprintf(stderr, "Error: %s\n", sqlite3_errmsg(pDest));
                   1648:       sqlite3_close(pDest);
                   1649:       return 1;
                   1650:     }
                   1651:     while(  (rc = sqlite3_backup_step(pBackup,100))==SQLITE_OK ){}
                   1652:     sqlite3_backup_finish(pBackup);
                   1653:     if( rc==SQLITE_DONE ){
                   1654:       rc = 0;
                   1655:     }else{
                   1656:       fprintf(stderr, "Error: %s\n", sqlite3_errmsg(pDest));
                   1657:       rc = 1;
                   1658:     }
                   1659:     sqlite3_close(pDest);
                   1660:   }else
                   1661:
                   1662:   if( c=='b' && n>=3 && strncmp(azArg[0], "bail", n)==0 && nArg>1 && nArg<3 ){
                   1663:     bail_on_error = booleanValue(azArg[1]);
                   1664:   }else
                   1665:
1.2       espie    1666:   /* The undocumented ".breakpoint" command causes a call to the no-op
                   1667:   ** routine named test_breakpoint().
                   1668:   */
                   1669:   if( c=='b' && n>=3 && strncmp(azArg[0], "breakpoint", n)==0 ){
                   1670:     test_breakpoint();
                   1671:   }else
                   1672:
1.1       espie    1673:   if( c=='d' && n>1 && strncmp(azArg[0], "databases", n)==0 && nArg==1 ){
                   1674:     struct callback_data data;
                   1675:     char *zErrMsg = 0;
                   1676:     open_db(p);
                   1677:     memcpy(&data, p, sizeof(data));
                   1678:     data.showHeader = 1;
                   1679:     data.mode = MODE_Column;
                   1680:     data.colWidth[0] = 3;
                   1681:     data.colWidth[1] = 15;
                   1682:     data.colWidth[2] = 58;
                   1683:     data.cnt = 0;
                   1684:     sqlite3_exec(p->db, "PRAGMA database_list; ", callback, &data, &zErrMsg);
                   1685:     if( zErrMsg ){
                   1686:       fprintf(stderr,"Error: %s\n", zErrMsg);
                   1687:       sqlite3_free(zErrMsg);
                   1688:       rc = 1;
                   1689:     }
                   1690:   }else
                   1691:
                   1692:   if( c=='d' && strncmp(azArg[0], "dump", n)==0 && nArg<3 ){
                   1693:     open_db(p);
                   1694:     /* When playing back a "dump", the content might appear in an order
                   1695:     ** which causes immediate foreign key constraints to be violated.
                   1696:     ** So disable foreign-key constraint enforcement to prevent problems. */
                   1697:     fprintf(p->out, "PRAGMA foreign_keys=OFF;\n");
                   1698:     fprintf(p->out, "BEGIN TRANSACTION;\n");
                   1699:     p->writableSchema = 0;
                   1700:     sqlite3_exec(p->db, "SAVEPOINT dump; PRAGMA writable_schema=ON", 0, 0, 0);
                   1701:     p->nErr = 0;
                   1702:     if( nArg==1 ){
                   1703:       run_schema_dump_query(p,
                   1704:         "SELECT name, type, sql FROM sqlite_master "
                   1705:         "WHERE sql NOT NULL AND type=='table' AND name!='sqlite_sequence'"
                   1706:       );
                   1707:       run_schema_dump_query(p,
                   1708:         "SELECT name, type, sql FROM sqlite_master "
                   1709:         "WHERE name=='sqlite_sequence'"
                   1710:       );
                   1711:       run_table_dump_query(p,
                   1712:         "SELECT sql FROM sqlite_master "
                   1713:         "WHERE sql NOT NULL AND type IN ('index','trigger','view')", 0
                   1714:       );
                   1715:     }else{
                   1716:       int i;
                   1717:       for(i=1; i<nArg; i++){
                   1718:         zShellStatic = azArg[i];
                   1719:         run_schema_dump_query(p,
                   1720:           "SELECT name, type, sql FROM sqlite_master "
                   1721:           "WHERE tbl_name LIKE shellstatic() AND type=='table'"
                   1722:           "  AND sql NOT NULL");
                   1723:         run_table_dump_query(p,
                   1724:           "SELECT sql FROM sqlite_master "
                   1725:           "WHERE sql NOT NULL"
                   1726:           "  AND type IN ('index','trigger','view')"
                   1727:           "  AND tbl_name LIKE shellstatic()", 0
                   1728:         );
                   1729:         zShellStatic = 0;
                   1730:       }
                   1731:     }
                   1732:     if( p->writableSchema ){
                   1733:       fprintf(p->out, "PRAGMA writable_schema=OFF;\n");
                   1734:       p->writableSchema = 0;
                   1735:     }
                   1736:     sqlite3_exec(p->db, "PRAGMA writable_schema=OFF;", 0, 0, 0);
                   1737:     sqlite3_exec(p->db, "RELEASE dump;", 0, 0, 0);
                   1738:     fprintf(p->out, p->nErr ? "ROLLBACK; -- due to errors\n" : "COMMIT;\n");
                   1739:   }else
                   1740:
                   1741:   if( c=='e' && strncmp(azArg[0], "echo", n)==0 && nArg>1 && nArg<3 ){
                   1742:     p->echoOn = booleanValue(azArg[1]);
                   1743:   }else
                   1744:
                   1745:   if( c=='e' && strncmp(azArg[0], "exit", n)==0  && nArg==1 ){
                   1746:     rc = 2;
                   1747:   }else
                   1748:
                   1749:   if( c=='e' && strncmp(azArg[0], "explain", n)==0 && nArg<3 ){
                   1750:     int val = nArg>=2 ? booleanValue(azArg[1]) : 1;
                   1751:     if(val == 1) {
                   1752:       if(!p->explainPrev.valid) {
                   1753:         p->explainPrev.valid = 1;
                   1754:         p->explainPrev.mode = p->mode;
                   1755:         p->explainPrev.showHeader = p->showHeader;
                   1756:         memcpy(p->explainPrev.colWidth,p->colWidth,sizeof(p->colWidth));
                   1757:       }
                   1758:       /* We could put this code under the !p->explainValid
                   1759:       ** condition so that it does not execute if we are already in
                   1760:       ** explain mode. However, always executing it allows us an easy
                   1761:       ** was to reset to explain mode in case the user previously
                   1762:       ** did an .explain followed by a .width, .mode or .header
                   1763:       ** command.
                   1764:       */
                   1765:       p->mode = MODE_Explain;
                   1766:       p->showHeader = 1;
                   1767:       memset(p->colWidth,0,ArraySize(p->colWidth));
                   1768:       p->colWidth[0] = 4;                  /* addr */
                   1769:       p->colWidth[1] = 13;                 /* opcode */
                   1770:       p->colWidth[2] = 4;                  /* P1 */
                   1771:       p->colWidth[3] = 4;                  /* P2 */
                   1772:       p->colWidth[4] = 4;                  /* P3 */
                   1773:       p->colWidth[5] = 13;                 /* P4 */
                   1774:       p->colWidth[6] = 2;                  /* P5 */
                   1775:       p->colWidth[7] = 13;                  /* Comment */
                   1776:     }else if (p->explainPrev.valid) {
                   1777:       p->explainPrev.valid = 0;
                   1778:       p->mode = p->explainPrev.mode;
                   1779:       p->showHeader = p->explainPrev.showHeader;
                   1780:       memcpy(p->colWidth,p->explainPrev.colWidth,sizeof(p->colWidth));
                   1781:     }
                   1782:   }else
                   1783:
                   1784:   if( c=='h' && (strncmp(azArg[0], "header", n)==0 ||
                   1785:                  strncmp(azArg[0], "headers", n)==0) && nArg>1 && nArg<3 ){
                   1786:     p->showHeader = booleanValue(azArg[1]);
                   1787:   }else
                   1788:
                   1789:   if( c=='h' && strncmp(azArg[0], "help", n)==0 ){
                   1790:     fprintf(stderr,"%s",zHelp);
                   1791:     if( HAS_TIMER ){
                   1792:       fprintf(stderr,"%s",zTimerHelp);
                   1793:     }
                   1794:   }else
                   1795:
                   1796:   if( c=='i' && strncmp(azArg[0], "import", n)==0 && nArg==3 ){
                   1797:     char *zTable = azArg[2];    /* Insert data into this table */
                   1798:     char *zFile = azArg[1];     /* The file from which to extract data */
                   1799:     sqlite3_stmt *pStmt = NULL; /* A statement */
                   1800:     int nCol;                   /* Number of columns in the table */
                   1801:     int nByte;                  /* Number of bytes in an SQL string */
                   1802:     int i, j;                   /* Loop counters */
                   1803:     int nSep;                   /* Number of bytes in p->separator[] */
                   1804:     char *zSql;                 /* An SQL statement */
                   1805:     char *zLine;                /* A single line of input from the file */
                   1806:     char **azCol;               /* zLine[] broken up into columns */
                   1807:     char *zCommit;              /* How to commit changes */
                   1808:     FILE *in;                   /* The input file */
                   1809:     int lineno = 0;             /* Line number of input file */
                   1810:
                   1811:     open_db(p);
                   1812:     nSep = strlen30(p->separator);
                   1813:     if( nSep==0 ){
                   1814:       fprintf(stderr, "Error: non-null separator required for import\n");
                   1815:       return 1;
                   1816:     }
                   1817:     zSql = sqlite3_mprintf("SELECT * FROM %s", zTable);
                   1818:     if( zSql==0 ){
                   1819:       fprintf(stderr, "Error: out of memory\n");
                   1820:       return 1;
                   1821:     }
                   1822:     nByte = strlen30(zSql);
                   1823:     rc = sqlite3_prepare(p->db, zSql, -1, &pStmt, 0);
                   1824:     sqlite3_free(zSql);
                   1825:     if( rc ){
                   1826:       if (pStmt) sqlite3_finalize(pStmt);
                   1827:       fprintf(stderr,"Error: %s\n", sqlite3_errmsg(db));
                   1828:       return 1;
                   1829:     }
                   1830:     nCol = sqlite3_column_count(pStmt);
                   1831:     sqlite3_finalize(pStmt);
                   1832:     pStmt = 0;
                   1833:     if( nCol==0 ) return 0; /* no columns, no error */
                   1834:     zSql = malloc( nByte + 20 + nCol*2 );
                   1835:     if( zSql==0 ){
                   1836:       fprintf(stderr, "Error: out of memory\n");
                   1837:       return 1;
                   1838:     }
                   1839:     sqlite3_snprintf(nByte+20, zSql, "INSERT INTO %s VALUES(?", zTable);
                   1840:     j = strlen30(zSql);
                   1841:     for(i=1; i<nCol; i++){
                   1842:       zSql[j++] = ',';
                   1843:       zSql[j++] = '?';
                   1844:     }
                   1845:     zSql[j++] = ')';
                   1846:     zSql[j] = 0;
                   1847:     rc = sqlite3_prepare(p->db, zSql, -1, &pStmt, 0);
                   1848:     free(zSql);
                   1849:     if( rc ){
                   1850:       fprintf(stderr, "Error: %s\n", sqlite3_errmsg(db));
                   1851:       if (pStmt) sqlite3_finalize(pStmt);
                   1852:       return 1;
                   1853:     }
                   1854:     in = fopen(zFile, "rb");
                   1855:     if( in==0 ){
                   1856:       fprintf(stderr, "Error: cannot open \"%s\"\n", zFile);
                   1857:       sqlite3_finalize(pStmt);
                   1858:       return 1;
                   1859:     }
                   1860:     azCol = malloc( sizeof(azCol[0])*(nCol+1) );
                   1861:     if( azCol==0 ){
                   1862:       fprintf(stderr, "Error: out of memory\n");
                   1863:       fclose(in);
                   1864:       sqlite3_finalize(pStmt);
                   1865:       return 1;
                   1866:     }
                   1867:     sqlite3_exec(p->db, "BEGIN", 0, 0, 0);
                   1868:     zCommit = "COMMIT";
                   1869:     while( (zLine = local_getline(0, in, 1))!=0 ){
                   1870:       char *z, c;
                   1871:       int inQuote = 0;
                   1872:       lineno++;
                   1873:       azCol[0] = zLine;
                   1874:       for(i=0, z=zLine; (c = *z)!=0; z++){
                   1875:         if( c=='"' ) inQuote = !inQuote;
                   1876:         if( c=='\n' ) lineno++;
                   1877:         if( !inQuote && c==p->separator[0] && strncmp(z,p->separator,nSep)==0 ){
                   1878:           *z = 0;
                   1879:           i++;
                   1880:           if( i<nCol ){
                   1881:             azCol[i] = &z[nSep];
                   1882:             z += nSep-1;
                   1883:           }
                   1884:         }
                   1885:       } /* end for */
                   1886:       *z = 0;
                   1887:       if( i+1!=nCol ){
                   1888:         fprintf(stderr,
                   1889:                 "Error: %s line %d: expected %d columns of data but found %d\n",
                   1890:                 zFile, lineno, nCol, i+1);
                   1891:         zCommit = "ROLLBACK";
                   1892:         free(zLine);
                   1893:         rc = 1;
                   1894:         break; /* from while */
                   1895:       }
                   1896:       for(i=0; i<nCol; i++){
                   1897:         if( azCol[i][0]=='"' ){
                   1898:           int k;
                   1899:           for(z=azCol[i], j=1, k=0; z[j]; j++){
                   1900:             if( z[j]=='"' ){ j++; if( z[j]==0 ) break; }
                   1901:             z[k++] = z[j];
                   1902:           }
                   1903:           z[k] = 0;
                   1904:         }
                   1905:         sqlite3_bind_text(pStmt, i+1, azCol[i], -1, SQLITE_STATIC);
                   1906:       }
                   1907:       sqlite3_step(pStmt);
                   1908:       rc = sqlite3_reset(pStmt);
                   1909:       free(zLine);
                   1910:       if( rc!=SQLITE_OK ){
                   1911:         fprintf(stderr,"Error: %s\n", sqlite3_errmsg(db));
                   1912:         zCommit = "ROLLBACK";
                   1913:         rc = 1;
                   1914:         break; /* from while */
                   1915:       }
                   1916:     } /* end while */
                   1917:     free(azCol);
                   1918:     fclose(in);
                   1919:     sqlite3_finalize(pStmt);
                   1920:     sqlite3_exec(p->db, zCommit, 0, 0, 0);
                   1921:   }else
                   1922:
                   1923:   if( c=='i' && strncmp(azArg[0], "indices", n)==0 && nArg<3 ){
                   1924:     struct callback_data data;
                   1925:     char *zErrMsg = 0;
                   1926:     open_db(p);
                   1927:     memcpy(&data, p, sizeof(data));
                   1928:     data.showHeader = 0;
                   1929:     data.mode = MODE_List;
                   1930:     if( nArg==1 ){
                   1931:       rc = sqlite3_exec(p->db,
                   1932:         "SELECT name FROM sqlite_master "
                   1933:         "WHERE type='index' AND name NOT LIKE 'sqlite_%' "
                   1934:         "UNION ALL "
                   1935:         "SELECT name FROM sqlite_temp_master "
                   1936:         "WHERE type='index' "
                   1937:         "ORDER BY 1",
                   1938:         callback, &data, &zErrMsg
                   1939:       );
                   1940:     }else{
                   1941:       zShellStatic = azArg[1];
                   1942:       rc = sqlite3_exec(p->db,
                   1943:         "SELECT name FROM sqlite_master "
                   1944:         "WHERE type='index' AND tbl_name LIKE shellstatic() "
                   1945:         "UNION ALL "
                   1946:         "SELECT name FROM sqlite_temp_master "
                   1947:         "WHERE type='index' AND tbl_name LIKE shellstatic() "
                   1948:         "ORDER BY 1",
                   1949:         callback, &data, &zErrMsg
                   1950:       );
                   1951:       zShellStatic = 0;
                   1952:     }
                   1953:     if( zErrMsg ){
                   1954:       fprintf(stderr,"Error: %s\n", zErrMsg);
                   1955:       sqlite3_free(zErrMsg);
                   1956:       rc = 1;
                   1957:     }else if( rc != SQLITE_OK ){
                   1958:       fprintf(stderr,"Error: querying sqlite_master and sqlite_temp_master\n");
                   1959:       rc = 1;
                   1960:     }
                   1961:   }else
                   1962:
                   1963: #ifdef SQLITE_ENABLE_IOTRACE
                   1964:   if( c=='i' && strncmp(azArg[0], "iotrace", n)==0 ){
                   1965:     extern void (*sqlite3IoTrace)(const char*, ...);
                   1966:     if( iotrace && iotrace!=stdout ) fclose(iotrace);
                   1967:     iotrace = 0;
                   1968:     if( nArg<2 ){
                   1969:       sqlite3IoTrace = 0;
                   1970:     }else if( strcmp(azArg[1], "-")==0 ){
                   1971:       sqlite3IoTrace = iotracePrintf;
                   1972:       iotrace = stdout;
                   1973:     }else{
                   1974:       iotrace = fopen(azArg[1], "w");
                   1975:       if( iotrace==0 ){
                   1976:         fprintf(stderr, "Error: cannot open \"%s\"\n", azArg[1]);
                   1977:         sqlite3IoTrace = 0;
                   1978:         rc = 1;
                   1979:       }else{
                   1980:         sqlite3IoTrace = iotracePrintf;
                   1981:       }
                   1982:     }
                   1983:   }else
                   1984: #endif
                   1985:
                   1986: #ifndef SQLITE_OMIT_LOAD_EXTENSION
                   1987:   if( c=='l' && strncmp(azArg[0], "load", n)==0 && nArg>=2 ){
                   1988:     const char *zFile, *zProc;
                   1989:     char *zErrMsg = 0;
                   1990:     zFile = azArg[1];
                   1991:     zProc = nArg>=3 ? azArg[2] : 0;
                   1992:     open_db(p);
                   1993:     rc = sqlite3_load_extension(p->db, zFile, zProc, &zErrMsg);
                   1994:     if( rc!=SQLITE_OK ){
                   1995:       fprintf(stderr, "Error: %s\n", zErrMsg);
                   1996:       sqlite3_free(zErrMsg);
                   1997:       rc = 1;
                   1998:     }
                   1999:   }else
                   2000: #endif
                   2001:
                   2002:   if( c=='l' && strncmp(azArg[0], "log", n)==0 && nArg>=2 ){
                   2003:     const char *zFile = azArg[1];
1.2       espie    2004:     output_file_close(p->pLog);
                   2005:     p->pLog = output_file_open(zFile);
1.1       espie    2006:   }else
                   2007:
                   2008:   if( c=='m' && strncmp(azArg[0], "mode", n)==0 && nArg==2 ){
                   2009:     int n2 = strlen30(azArg[1]);
                   2010:     if( (n2==4 && strncmp(azArg[1],"line",n2)==0)
                   2011:         ||
                   2012:         (n2==5 && strncmp(azArg[1],"lines",n2)==0) ){
                   2013:       p->mode = MODE_Line;
                   2014:     }else if( (n2==6 && strncmp(azArg[1],"column",n2)==0)
                   2015:               ||
                   2016:               (n2==7 && strncmp(azArg[1],"columns",n2)==0) ){
                   2017:       p->mode = MODE_Column;
                   2018:     }else if( n2==4 && strncmp(azArg[1],"list",n2)==0 ){
                   2019:       p->mode = MODE_List;
                   2020:     }else if( n2==4 && strncmp(azArg[1],"html",n2)==0 ){
                   2021:       p->mode = MODE_Html;
                   2022:     }else if( n2==3 && strncmp(azArg[1],"tcl",n2)==0 ){
                   2023:       p->mode = MODE_Tcl;
1.5     ! espie    2024:       sqlite3_snprintf(sizeof(p->separator), p->separator, " ");
1.1       espie    2025:     }else if( n2==3 && strncmp(azArg[1],"csv",n2)==0 ){
                   2026:       p->mode = MODE_Csv;
                   2027:       sqlite3_snprintf(sizeof(p->separator), p->separator, ",");
                   2028:     }else if( n2==4 && strncmp(azArg[1],"tabs",n2)==0 ){
                   2029:       p->mode = MODE_List;
                   2030:       sqlite3_snprintf(sizeof(p->separator), p->separator, "\t");
                   2031:     }else if( n2==6 && strncmp(azArg[1],"insert",n2)==0 ){
                   2032:       p->mode = MODE_Insert;
                   2033:       set_table_name(p, "table");
                   2034:     }else {
                   2035:       fprintf(stderr,"Error: mode should be one of: "
                   2036:          "column csv html insert line list tabs tcl\n");
                   2037:       rc = 1;
                   2038:     }
                   2039:   }else
                   2040:
                   2041:   if( c=='m' && strncmp(azArg[0], "mode", n)==0 && nArg==3 ){
                   2042:     int n2 = strlen30(azArg[1]);
                   2043:     if( n2==6 && strncmp(azArg[1],"insert",n2)==0 ){
                   2044:       p->mode = MODE_Insert;
                   2045:       set_table_name(p, azArg[2]);
                   2046:     }else {
                   2047:       fprintf(stderr, "Error: invalid arguments: "
                   2048:         " \"%s\". Enter \".help\" for help\n", azArg[2]);
                   2049:       rc = 1;
                   2050:     }
                   2051:   }else
                   2052:
                   2053:   if( c=='n' && strncmp(azArg[0], "nullvalue", n)==0 && nArg==2 ) {
                   2054:     sqlite3_snprintf(sizeof(p->nullvalue), p->nullvalue,
                   2055:                      "%.*s", (int)ArraySize(p->nullvalue)-1, azArg[1]);
                   2056:   }else
                   2057:
                   2058:   if( c=='o' && strncmp(azArg[0], "output", n)==0 && nArg==2 ){
1.2       espie    2059:     if( p->outfile[0]=='|' ){
                   2060:       pclose(p->out);
                   2061:     }else{
                   2062:       output_file_close(p->out);
1.1       espie    2063:     }
1.2       espie    2064:     p->outfile[0] = 0;
                   2065:     if( azArg[1][0]=='|' ){
                   2066:       p->out = popen(&azArg[1][1], "w");
                   2067:       if( p->out==0 ){
                   2068:         fprintf(stderr,"Error: cannot open pipe \"%s\"\n", &azArg[1][1]);
                   2069:         p->out = stdout;
                   2070:         rc = 1;
                   2071:       }else{
                   2072:         sqlite3_snprintf(sizeof(p->outfile), p->outfile, "%s", azArg[1]);
                   2073:       }
1.1       espie    2074:     }else{
1.2       espie    2075:       p->out = output_file_open(azArg[1]);
1.1       espie    2076:       if( p->out==0 ){
1.2       espie    2077:         if( strcmp(azArg[1],"off")!=0 ){
                   2078:           fprintf(stderr,"Error: cannot write to \"%s\"\n", azArg[1]);
                   2079:         }
1.1       espie    2080:         p->out = stdout;
                   2081:         rc = 1;
                   2082:       } else {
1.2       espie    2083:         sqlite3_snprintf(sizeof(p->outfile), p->outfile, "%s", azArg[1]);
1.1       espie    2084:       }
                   2085:     }
                   2086:   }else
                   2087:
1.5     ! espie    2088:   if( c=='p' && n>=3 && strncmp(azArg[0], "print", n)==0 ){
        !          2089:     int i;
        !          2090:     for(i=1; i<nArg; i++){
        !          2091:       if( i>1 ) fprintf(p->out, " ");
        !          2092:       fprintf(p->out, "%s", azArg[i]);
        !          2093:     }
        !          2094:     fprintf(p->out, "\n");
        !          2095:   }else
        !          2096:
1.1       espie    2097:   if( c=='p' && strncmp(azArg[0], "prompt", n)==0 && (nArg==2 || nArg==3)){
                   2098:     if( nArg >= 2) {
                   2099:       strncpy(mainPrompt,azArg[1],(int)ArraySize(mainPrompt)-1);
                   2100:     }
                   2101:     if( nArg >= 3) {
                   2102:       strncpy(continuePrompt,azArg[2],(int)ArraySize(continuePrompt)-1);
                   2103:     }
                   2104:   }else
                   2105:
                   2106:   if( c=='q' && strncmp(azArg[0], "quit", n)==0 && nArg==1 ){
                   2107:     rc = 2;
                   2108:   }else
                   2109:
                   2110:   if( c=='r' && n>=3 && strncmp(azArg[0], "read", n)==0 && nArg==2 ){
                   2111:     FILE *alt = fopen(azArg[1], "rb");
                   2112:     if( alt==0 ){
                   2113:       fprintf(stderr,"Error: cannot open \"%s\"\n", azArg[1]);
                   2114:       rc = 1;
                   2115:     }else{
                   2116:       rc = process_input(p, alt);
                   2117:       fclose(alt);
                   2118:     }
                   2119:   }else
                   2120:
                   2121:   if( c=='r' && n>=3 && strncmp(azArg[0], "restore", n)==0 && nArg>1 && nArg<4){
                   2122:     const char *zSrcFile;
                   2123:     const char *zDb;
                   2124:     sqlite3 *pSrc;
                   2125:     sqlite3_backup *pBackup;
                   2126:     int nTimeout = 0;
                   2127:
                   2128:     if( nArg==2 ){
                   2129:       zSrcFile = azArg[1];
                   2130:       zDb = "main";
                   2131:     }else{
                   2132:       zSrcFile = azArg[2];
                   2133:       zDb = azArg[1];
                   2134:     }
                   2135:     rc = sqlite3_open(zSrcFile, &pSrc);
                   2136:     if( rc!=SQLITE_OK ){
                   2137:       fprintf(stderr, "Error: cannot open \"%s\"\n", zSrcFile);
                   2138:       sqlite3_close(pSrc);
                   2139:       return 1;
                   2140:     }
                   2141:     open_db(p);
                   2142:     pBackup = sqlite3_backup_init(p->db, zDb, pSrc, "main");
                   2143:     if( pBackup==0 ){
                   2144:       fprintf(stderr, "Error: %s\n", sqlite3_errmsg(p->db));
                   2145:       sqlite3_close(pSrc);
                   2146:       return 1;
                   2147:     }
                   2148:     while( (rc = sqlite3_backup_step(pBackup,100))==SQLITE_OK
                   2149:           || rc==SQLITE_BUSY  ){
                   2150:       if( rc==SQLITE_BUSY ){
                   2151:         if( nTimeout++ >= 3 ) break;
                   2152:         sqlite3_sleep(100);
                   2153:       }
                   2154:     }
                   2155:     sqlite3_backup_finish(pBackup);
                   2156:     if( rc==SQLITE_DONE ){
                   2157:       rc = 0;
                   2158:     }else if( rc==SQLITE_BUSY || rc==SQLITE_LOCKED ){
                   2159:       fprintf(stderr, "Error: source database is busy\n");
                   2160:       rc = 1;
                   2161:     }else{
                   2162:       fprintf(stderr, "Error: %s\n", sqlite3_errmsg(p->db));
                   2163:       rc = 1;
                   2164:     }
                   2165:     sqlite3_close(pSrc);
                   2166:   }else
                   2167:
                   2168:   if( c=='s' && strncmp(azArg[0], "schema", n)==0 && nArg<3 ){
                   2169:     struct callback_data data;
                   2170:     char *zErrMsg = 0;
                   2171:     open_db(p);
                   2172:     memcpy(&data, p, sizeof(data));
                   2173:     data.showHeader = 0;
                   2174:     data.mode = MODE_Semi;
                   2175:     if( nArg>1 ){
                   2176:       int i;
                   2177:       for(i=0; azArg[1][i]; i++) azArg[1][i] = ToLower(azArg[1][i]);
                   2178:       if( strcmp(azArg[1],"sqlite_master")==0 ){
                   2179:         char *new_argv[2], *new_colv[2];
                   2180:         new_argv[0] = "CREATE TABLE sqlite_master (\n"
                   2181:                       "  type text,\n"
                   2182:                       "  name text,\n"
                   2183:                       "  tbl_name text,\n"
                   2184:                       "  rootpage integer,\n"
                   2185:                       "  sql text\n"
                   2186:                       ")";
                   2187:         new_argv[1] = 0;
                   2188:         new_colv[0] = "sql";
                   2189:         new_colv[1] = 0;
                   2190:         callback(&data, 1, new_argv, new_colv);
                   2191:         rc = SQLITE_OK;
                   2192:       }else if( strcmp(azArg[1],"sqlite_temp_master")==0 ){
                   2193:         char *new_argv[2], *new_colv[2];
                   2194:         new_argv[0] = "CREATE TEMP TABLE sqlite_temp_master (\n"
                   2195:                       "  type text,\n"
                   2196:                       "  name text,\n"
                   2197:                       "  tbl_name text,\n"
                   2198:                       "  rootpage integer,\n"
                   2199:                       "  sql text\n"
                   2200:                       ")";
                   2201:         new_argv[1] = 0;
                   2202:         new_colv[0] = "sql";
                   2203:         new_colv[1] = 0;
                   2204:         callback(&data, 1, new_argv, new_colv);
                   2205:         rc = SQLITE_OK;
                   2206:       }else{
                   2207:         zShellStatic = azArg[1];
                   2208:         rc = sqlite3_exec(p->db,
                   2209:           "SELECT sql FROM "
1.3       espie    2210:           "  (SELECT sql sql, type type, tbl_name tbl_name, name name, rowid x"
1.1       espie    2211:           "     FROM sqlite_master UNION ALL"
1.3       espie    2212:           "   SELECT sql, type, tbl_name, name, rowid FROM sqlite_temp_master) "
1.1       espie    2213:           "WHERE lower(tbl_name) LIKE shellstatic()"
                   2214:           "  AND type!='meta' AND sql NOTNULL "
1.3       espie    2215:           "ORDER BY substr(type,2,1), "
                   2216:                   " CASE type WHEN 'view' THEN rowid ELSE name END",
1.1       espie    2217:           callback, &data, &zErrMsg);
                   2218:         zShellStatic = 0;
                   2219:       }
                   2220:     }else{
                   2221:       rc = sqlite3_exec(p->db,
                   2222:          "SELECT sql FROM "
1.3       espie    2223:          "  (SELECT sql sql, type type, tbl_name tbl_name, name name, rowid x"
1.1       espie    2224:          "     FROM sqlite_master UNION ALL"
1.3       espie    2225:          "   SELECT sql, type, tbl_name, name, rowid FROM sqlite_temp_master) "
1.1       espie    2226:          "WHERE type!='meta' AND sql NOTNULL AND name NOT LIKE 'sqlite_%'"
1.3       espie    2227:          "ORDER BY substr(type,2,1),"
                   2228:                   " CASE type WHEN 'view' THEN rowid ELSE name END",
1.1       espie    2229:          callback, &data, &zErrMsg
                   2230:       );
                   2231:     }
                   2232:     if( zErrMsg ){
                   2233:       fprintf(stderr,"Error: %s\n", zErrMsg);
                   2234:       sqlite3_free(zErrMsg);
                   2235:       rc = 1;
                   2236:     }else if( rc != SQLITE_OK ){
                   2237:       fprintf(stderr,"Error: querying schema information\n");
                   2238:       rc = 1;
                   2239:     }else{
                   2240:       rc = 0;
                   2241:     }
                   2242:   }else
                   2243:
                   2244:   if( c=='s' && strncmp(azArg[0], "separator", n)==0 && nArg==2 ){
                   2245:     sqlite3_snprintf(sizeof(p->separator), p->separator,
                   2246:                      "%.*s", (int)sizeof(p->separator)-1, azArg[1]);
                   2247:   }else
                   2248:
                   2249:   if( c=='s' && strncmp(azArg[0], "show", n)==0 && nArg==1 ){
                   2250:     int i;
                   2251:     fprintf(p->out,"%9.9s: %s\n","echo", p->echoOn ? "on" : "off");
                   2252:     fprintf(p->out,"%9.9s: %s\n","explain", p->explainPrev.valid ? "on" :"off");
                   2253:     fprintf(p->out,"%9.9s: %s\n","headers", p->showHeader ? "on" : "off");
                   2254:     fprintf(p->out,"%9.9s: %s\n","mode", modeDescr[p->mode]);
                   2255:     fprintf(p->out,"%9.9s: ", "nullvalue");
                   2256:       output_c_string(p->out, p->nullvalue);
                   2257:       fprintf(p->out, "\n");
                   2258:     fprintf(p->out,"%9.9s: %s\n","output",
                   2259:             strlen30(p->outfile) ? p->outfile : "stdout");
                   2260:     fprintf(p->out,"%9.9s: ", "separator");
                   2261:       output_c_string(p->out, p->separator);
                   2262:       fprintf(p->out, "\n");
                   2263:     fprintf(p->out,"%9.9s: %s\n","stats", p->statsOn ? "on" : "off");
                   2264:     fprintf(p->out,"%9.9s: ","width");
                   2265:     for (i=0;i<(int)ArraySize(p->colWidth) && p->colWidth[i] != 0;i++) {
                   2266:       fprintf(p->out,"%d ",p->colWidth[i]);
                   2267:     }
                   2268:     fprintf(p->out,"\n");
                   2269:   }else
                   2270:
                   2271:   if( c=='s' && strncmp(azArg[0], "stats", n)==0 && nArg>1 && nArg<3 ){
                   2272:     p->statsOn = booleanValue(azArg[1]);
                   2273:   }else
                   2274:
                   2275:   if( c=='t' && n>1 && strncmp(azArg[0], "tables", n)==0 && nArg<3 ){
1.2       espie    2276:     sqlite3_stmt *pStmt;
1.1       espie    2277:     char **azResult;
1.2       espie    2278:     int nRow, nAlloc;
                   2279:     char *zSql = 0;
                   2280:     int ii;
1.1       espie    2281:     open_db(p);
1.2       espie    2282:     rc = sqlite3_prepare_v2(p->db, "PRAGMA database_list", -1, &pStmt, 0);
                   2283:     if( rc ) return rc;
                   2284:     zSql = sqlite3_mprintf(
                   2285:         "SELECT name FROM sqlite_master"
                   2286:         " WHERE type IN ('table','view')"
                   2287:         "   AND name NOT LIKE 'sqlite_%%'"
                   2288:         "   AND name LIKE ?1");
                   2289:     while( sqlite3_step(pStmt)==SQLITE_ROW ){
                   2290:       const char *zDbName = (const char*)sqlite3_column_text(pStmt, 1);
                   2291:       if( zDbName==0 || strcmp(zDbName,"main")==0 ) continue;
                   2292:       if( strcmp(zDbName,"temp")==0 ){
                   2293:         zSql = sqlite3_mprintf(
                   2294:                  "%z UNION ALL "
                   2295:                  "SELECT 'temp.' || name FROM sqlite_temp_master"
                   2296:                  " WHERE type IN ('table','view')"
                   2297:                  "   AND name NOT LIKE 'sqlite_%%'"
                   2298:                  "   AND name LIKE ?1", zSql);
                   2299:       }else{
                   2300:         zSql = sqlite3_mprintf(
                   2301:                  "%z UNION ALL "
                   2302:                  "SELECT '%q.' || name FROM \"%w\".sqlite_master"
                   2303:                  " WHERE type IN ('table','view')"
                   2304:                  "   AND name NOT LIKE 'sqlite_%%'"
                   2305:                  "   AND name LIKE ?1", zSql, zDbName, zDbName);
                   2306:       }
                   2307:     }
                   2308:     sqlite3_finalize(pStmt);
                   2309:     zSql = sqlite3_mprintf("%z ORDER BY 1", zSql);
                   2310:     rc = sqlite3_prepare_v2(p->db, zSql, -1, &pStmt, 0);
                   2311:     sqlite3_free(zSql);
                   2312:     if( rc ) return rc;
                   2313:     nRow = nAlloc = 0;
                   2314:     azResult = 0;
                   2315:     if( nArg>1 ){
                   2316:       sqlite3_bind_text(pStmt, 1, azArg[1], -1, SQLITE_TRANSIENT);
1.1       espie    2317:     }else{
1.2       espie    2318:       sqlite3_bind_text(pStmt, 1, "%", -1, SQLITE_STATIC);
                   2319:     }
                   2320:     while( sqlite3_step(pStmt)==SQLITE_ROW ){
                   2321:       if( nRow>=nAlloc ){
                   2322:         char **azNew;
                   2323:         int n = nAlloc*2 + 10;
                   2324:         azNew = sqlite3_realloc(azResult, sizeof(azResult[0])*n);
                   2325:         if( azNew==0 ){
                   2326:           fprintf(stderr, "Error: out of memory\n");
                   2327:           break;
                   2328:         }
                   2329:         nAlloc = n;
                   2330:         azResult = azNew;
                   2331:       }
                   2332:       azResult[nRow] = sqlite3_mprintf("%s", sqlite3_column_text(pStmt, 0));
                   2333:       if( azResult[nRow] ) nRow++;
1.1       espie    2334:     }
1.2       espie    2335:     sqlite3_finalize(pStmt);
                   2336:     if( nRow>0 ){
1.1       espie    2337:       int len, maxlen = 0;
                   2338:       int i, j;
                   2339:       int nPrintCol, nPrintRow;
1.2       espie    2340:       for(i=0; i<nRow; i++){
1.1       espie    2341:         len = strlen30(azResult[i]);
                   2342:         if( len>maxlen ) maxlen = len;
                   2343:       }
                   2344:       nPrintCol = 80/(maxlen+2);
                   2345:       if( nPrintCol<1 ) nPrintCol = 1;
                   2346:       nPrintRow = (nRow + nPrintCol - 1)/nPrintCol;
                   2347:       for(i=0; i<nPrintRow; i++){
1.2       espie    2348:         for(j=i; j<nRow; j+=nPrintRow){
                   2349:           char *zSp = j<nPrintRow ? "" : "  ";
1.1       espie    2350:           printf("%s%-*s", zSp, maxlen, azResult[j] ? azResult[j] : "");
                   2351:         }
                   2352:         printf("\n");
                   2353:       }
                   2354:     }
1.2       espie    2355:     for(ii=0; ii<nRow; ii++) sqlite3_free(azResult[ii]);
                   2356:     sqlite3_free(azResult);
1.1       espie    2357:   }else
                   2358:
                   2359:   if( c=='t' && n>=8 && strncmp(azArg[0], "testctrl", n)==0 && nArg>=2 ){
                   2360:     static const struct {
                   2361:        const char *zCtrlName;   /* Name of a test-control option */
                   2362:        int ctrlCode;            /* Integer code for that option */
                   2363:     } aCtrl[] = {
                   2364:       { "prng_save",             SQLITE_TESTCTRL_PRNG_SAVE              },
                   2365:       { "prng_restore",          SQLITE_TESTCTRL_PRNG_RESTORE           },
                   2366:       { "prng_reset",            SQLITE_TESTCTRL_PRNG_RESET             },
                   2367:       { "bitvec_test",           SQLITE_TESTCTRL_BITVEC_TEST            },
                   2368:       { "fault_install",         SQLITE_TESTCTRL_FAULT_INSTALL          },
                   2369:       { "benign_malloc_hooks",   SQLITE_TESTCTRL_BENIGN_MALLOC_HOOKS    },
                   2370:       { "pending_byte",          SQLITE_TESTCTRL_PENDING_BYTE           },
                   2371:       { "assert",                SQLITE_TESTCTRL_ASSERT                 },
                   2372:       { "always",                SQLITE_TESTCTRL_ALWAYS                 },
                   2373:       { "reserve",               SQLITE_TESTCTRL_RESERVE                },
                   2374:       { "optimizations",         SQLITE_TESTCTRL_OPTIMIZATIONS          },
                   2375:       { "iskeyword",             SQLITE_TESTCTRL_ISKEYWORD              },
                   2376:       { "scratchmalloc",         SQLITE_TESTCTRL_SCRATCHMALLOC          },
                   2377:     };
                   2378:     int testctrl = -1;
                   2379:     int rc = 0;
                   2380:     int i, n;
                   2381:     open_db(p);
                   2382:
                   2383:     /* convert testctrl text option to value. allow any unique prefix
                   2384:     ** of the option name, or a numerical value. */
                   2385:     n = strlen30(azArg[1]);
                   2386:     for(i=0; i<(int)(sizeof(aCtrl)/sizeof(aCtrl[0])); i++){
                   2387:       if( strncmp(azArg[1], aCtrl[i].zCtrlName, n)==0 ){
                   2388:         if( testctrl<0 ){
                   2389:           testctrl = aCtrl[i].ctrlCode;
                   2390:         }else{
                   2391:           fprintf(stderr, "ambiguous option name: \"%s\"\n", azArg[1]);
                   2392:           testctrl = -1;
                   2393:           break;
                   2394:         }
                   2395:       }
                   2396:     }
                   2397:     if( testctrl<0 ) testctrl = atoi(azArg[1]);
                   2398:     if( (testctrl<SQLITE_TESTCTRL_FIRST) || (testctrl>SQLITE_TESTCTRL_LAST) ){
                   2399:       fprintf(stderr,"Error: invalid testctrl option: %s\n", azArg[1]);
                   2400:     }else{
                   2401:       switch(testctrl){
                   2402:
                   2403:         /* sqlite3_test_control(int, db, int) */
                   2404:         case SQLITE_TESTCTRL_OPTIMIZATIONS:
                   2405:         case SQLITE_TESTCTRL_RESERVE:
                   2406:           if( nArg==3 ){
                   2407:             int opt = (int)strtol(azArg[2], 0, 0);
                   2408:             rc = sqlite3_test_control(testctrl, p->db, opt);
                   2409:             printf("%d (0x%08x)\n", rc, rc);
                   2410:           } else {
                   2411:             fprintf(stderr,"Error: testctrl %s takes a single int option\n",
                   2412:                     azArg[1]);
                   2413:           }
                   2414:           break;
                   2415:
                   2416:         /* sqlite3_test_control(int) */
                   2417:         case SQLITE_TESTCTRL_PRNG_SAVE:
                   2418:         case SQLITE_TESTCTRL_PRNG_RESTORE:
                   2419:         case SQLITE_TESTCTRL_PRNG_RESET:
                   2420:           if( nArg==2 ){
                   2421:             rc = sqlite3_test_control(testctrl);
                   2422:             printf("%d (0x%08x)\n", rc, rc);
                   2423:           } else {
                   2424:             fprintf(stderr,"Error: testctrl %s takes no options\n", azArg[1]);
                   2425:           }
                   2426:           break;
                   2427:
                   2428:         /* sqlite3_test_control(int, uint) */
                   2429:         case SQLITE_TESTCTRL_PENDING_BYTE:
                   2430:           if( nArg==3 ){
                   2431:             unsigned int opt = (unsigned int)atoi(azArg[2]);
                   2432:             rc = sqlite3_test_control(testctrl, opt);
                   2433:             printf("%d (0x%08x)\n", rc, rc);
                   2434:           } else {
                   2435:             fprintf(stderr,"Error: testctrl %s takes a single unsigned"
                   2436:                            " int option\n", azArg[1]);
                   2437:           }
                   2438:           break;
                   2439:
                   2440:         /* sqlite3_test_control(int, int) */
                   2441:         case SQLITE_TESTCTRL_ASSERT:
                   2442:         case SQLITE_TESTCTRL_ALWAYS:
                   2443:           if( nArg==3 ){
                   2444:             int opt = atoi(azArg[2]);
                   2445:             rc = sqlite3_test_control(testctrl, opt);
                   2446:             printf("%d (0x%08x)\n", rc, rc);
                   2447:           } else {
                   2448:             fprintf(stderr,"Error: testctrl %s takes a single int option\n",
                   2449:                             azArg[1]);
                   2450:           }
                   2451:           break;
                   2452:
                   2453:         /* sqlite3_test_control(int, char *) */
                   2454: #ifdef SQLITE_N_KEYWORD
                   2455:         case SQLITE_TESTCTRL_ISKEYWORD:
                   2456:           if( nArg==3 ){
                   2457:             const char *opt = azArg[2];
                   2458:             rc = sqlite3_test_control(testctrl, opt);
                   2459:             printf("%d (0x%08x)\n", rc, rc);
                   2460:           } else {
                   2461:             fprintf(stderr,"Error: testctrl %s takes a single char * option\n",
                   2462:                             azArg[1]);
                   2463:           }
                   2464:           break;
                   2465: #endif
                   2466:
                   2467:         case SQLITE_TESTCTRL_BITVEC_TEST:
                   2468:         case SQLITE_TESTCTRL_FAULT_INSTALL:
                   2469:         case SQLITE_TESTCTRL_BENIGN_MALLOC_HOOKS:
                   2470:         case SQLITE_TESTCTRL_SCRATCHMALLOC:
                   2471:         default:
                   2472:           fprintf(stderr,"Error: CLI support for testctrl %s not implemented\n",
                   2473:                   azArg[1]);
                   2474:           break;
                   2475:       }
                   2476:     }
                   2477:   }else
                   2478:
                   2479:   if( c=='t' && n>4 && strncmp(azArg[0], "timeout", n)==0 && nArg==2 ){
                   2480:     open_db(p);
                   2481:     sqlite3_busy_timeout(p->db, atoi(azArg[1]));
                   2482:   }else
                   2483:
                   2484:   if( HAS_TIMER && c=='t' && n>=5 && strncmp(azArg[0], "timer", n)==0
                   2485:    && nArg==2
                   2486:   ){
                   2487:     enableTimer = booleanValue(azArg[1]);
                   2488:   }else
                   2489:
1.2       espie    2490:   if( c=='t' && strncmp(azArg[0], "trace", n)==0 && nArg>1 ){
                   2491:     open_db(p);
                   2492:     output_file_close(p->traceOut);
                   2493:     p->traceOut = output_file_open(azArg[1]);
1.4       espie    2494: #if !defined(SQLITE_OMIT_TRACE) && !defined(SQLITE_OMIT_FLOATING_POINT)
1.2       espie    2495:     if( p->traceOut==0 ){
                   2496:       sqlite3_trace(p->db, 0, 0);
                   2497:     }else{
                   2498:       sqlite3_trace(p->db, sql_trace_callback, p->traceOut);
                   2499:     }
                   2500: #endif
                   2501:   }else
                   2502:
1.1       espie    2503:   if( c=='v' && strncmp(azArg[0], "version", n)==0 ){
                   2504:     printf("SQLite %s %s\n" /*extra-version-info*/,
                   2505:         sqlite3_libversion(), sqlite3_sourceid());
                   2506:   }else
                   2507:
                   2508:   if( c=='v' && strncmp(azArg[0], "vfsname", n)==0 ){
                   2509:     const char *zDbName = nArg==2 ? azArg[1] : "main";
                   2510:     char *zVfsName = 0;
                   2511:     if( p->db ){
                   2512:       sqlite3_file_control(p->db, zDbName, SQLITE_FCNTL_VFSNAME, &zVfsName);
                   2513:       if( zVfsName ){
                   2514:         printf("%s\n", zVfsName);
                   2515:         sqlite3_free(zVfsName);
                   2516:       }
                   2517:     }
                   2518:   }else
                   2519:
1.5     ! espie    2520: #if defined(SQLITE_DEBUG) && defined(SQLITE_ENABLE_WHERETRACE)
        !          2521:   if( c=='w' && strncmp(azArg[0], "wheretrace", n)==0 ){
        !          2522:     extern int sqlite3WhereTrace;
        !          2523:     sqlite3WhereTrace = atoi(azArg[1]);
        !          2524:   }else
        !          2525: #endif
        !          2526:
1.1       espie    2527:   if( c=='w' && strncmp(azArg[0], "width", n)==0 && nArg>1 ){
                   2528:     int j;
                   2529:     assert( nArg<=ArraySize(azArg) );
                   2530:     for(j=1; j<nArg && j<ArraySize(p->colWidth); j++){
                   2531:       p->colWidth[j-1] = atoi(azArg[j]);
                   2532:     }
                   2533:   }else
                   2534:
                   2535:   {
                   2536:     fprintf(stderr, "Error: unknown command or invalid arguments: "
                   2537:       " \"%s\". Enter \".help\" for help\n", azArg[0]);
                   2538:     rc = 1;
                   2539:   }
                   2540:
                   2541:   return rc;
                   2542: }
                   2543:
                   2544: /*
                   2545: ** Return TRUE if a semicolon occurs anywhere in the first N characters
                   2546: ** of string z[].
                   2547: */
                   2548: static int _contains_semicolon(const char *z, int N){
                   2549:   int i;
                   2550:   for(i=0; i<N; i++){  if( z[i]==';' ) return 1; }
                   2551:   return 0;
                   2552: }
                   2553:
                   2554: /*
                   2555: ** Test to see if a line consists entirely of whitespace.
                   2556: */
                   2557: static int _all_whitespace(const char *z){
                   2558:   for(; *z; z++){
                   2559:     if( IsSpace(z[0]) ) continue;
                   2560:     if( *z=='/' && z[1]=='*' ){
                   2561:       z += 2;
                   2562:       while( *z && (*z!='*' || z[1]!='/') ){ z++; }
                   2563:       if( *z==0 ) return 0;
                   2564:       z++;
                   2565:       continue;
                   2566:     }
                   2567:     if( *z=='-' && z[1]=='-' ){
                   2568:       z += 2;
                   2569:       while( *z && *z!='\n' ){ z++; }
                   2570:       if( *z==0 ) return 1;
                   2571:       continue;
                   2572:     }
                   2573:     return 0;
                   2574:   }
                   2575:   return 1;
                   2576: }
                   2577:
                   2578: /*
                   2579: ** Return TRUE if the line typed in is an SQL command terminator other
                   2580: ** than a semi-colon.  The SQL Server style "go" command is understood
                   2581: ** as is the Oracle "/".
                   2582: */
                   2583: static int _is_command_terminator(const char *zLine){
                   2584:   while( IsSpace(zLine[0]) ){ zLine++; };
                   2585:   if( zLine[0]=='/' && _all_whitespace(&zLine[1]) ){
                   2586:     return 1;  /* Oracle */
                   2587:   }
                   2588:   if( ToLower(zLine[0])=='g' && ToLower(zLine[1])=='o'
                   2589:          && _all_whitespace(&zLine[2]) ){
                   2590:     return 1;  /* SQL Server */
                   2591:   }
                   2592:   return 0;
                   2593: }
                   2594:
                   2595: /*
                   2596: ** Return true if zSql is a complete SQL statement.  Return false if it
                   2597: ** ends in the middle of a string literal or C-style comment.
                   2598: */
                   2599: static int _is_complete(char *zSql, int nSql){
                   2600:   int rc;
                   2601:   if( zSql==0 ) return 1;
                   2602:   zSql[nSql] = ';';
                   2603:   zSql[nSql+1] = 0;
                   2604:   rc = sqlite3_complete(zSql);
                   2605:   zSql[nSql] = 0;
                   2606:   return rc;
                   2607: }
                   2608:
                   2609: /*
                   2610: ** Read input from *in and process it.  If *in==0 then input
                   2611: ** is interactive - the user is typing it it.  Otherwise, input
                   2612: ** is coming from a file or device.  A prompt is issued and history
                   2613: ** is saved only if input is interactive.  An interrupt signal will
                   2614: ** cause this routine to exit immediately, unless input is interactive.
                   2615: **
                   2616: ** Return the number of errors.
                   2617: */
                   2618: static int process_input(struct callback_data *p, FILE *in){
                   2619:   char *zLine = 0;
                   2620:   char *zSql = 0;
                   2621:   int nSql = 0;
                   2622:   int nSqlPrior = 0;
                   2623:   char *zErrMsg;
                   2624:   int rc;
                   2625:   int errCnt = 0;
                   2626:   int lineno = 0;
                   2627:   int startline = 0;
                   2628:
                   2629:   while( errCnt==0 || !bail_on_error || (in==0 && stdin_is_interactive) ){
                   2630:     fflush(p->out);
                   2631:     free(zLine);
                   2632:     zLine = one_input_line(zSql, in);
                   2633:     if( zLine==0 ){
1.2       espie    2634:       /* End of input */
                   2635:       if( stdin_is_interactive ) printf("\n");
                   2636:       break;
1.1       espie    2637:     }
                   2638:     if( seenInterrupt ){
                   2639:       if( in!=0 ) break;
                   2640:       seenInterrupt = 0;
                   2641:     }
                   2642:     lineno++;
                   2643:     if( (zSql==0 || zSql[0]==0) && _all_whitespace(zLine) ) continue;
                   2644:     if( zLine && zLine[0]=='.' && nSql==0 ){
                   2645:       if( p->echoOn ) printf("%s\n", zLine);
                   2646:       rc = do_meta_command(zLine, p);
                   2647:       if( rc==2 ){ /* exit requested */
                   2648:         break;
                   2649:       }else if( rc ){
                   2650:         errCnt++;
                   2651:       }
                   2652:       continue;
                   2653:     }
                   2654:     if( _is_command_terminator(zLine) && _is_complete(zSql, nSql) ){
                   2655:       memcpy(zLine,";",2);
                   2656:     }
                   2657:     nSqlPrior = nSql;
                   2658:     if( zSql==0 ){
                   2659:       int i;
                   2660:       for(i=0; zLine[i] && IsSpace(zLine[i]); i++){}
                   2661:       if( zLine[i]!=0 ){
                   2662:         nSql = strlen30(zLine);
                   2663:         zSql = malloc( nSql+3 );
                   2664:         if( zSql==0 ){
                   2665:           fprintf(stderr, "Error: out of memory\n");
                   2666:           exit(1);
                   2667:         }
                   2668:         memcpy(zSql, zLine, nSql+1);
                   2669:         startline = lineno;
                   2670:       }
                   2671:     }else{
                   2672:       int len = strlen30(zLine);
                   2673:       zSql = realloc( zSql, nSql + len + 4 );
                   2674:       if( zSql==0 ){
                   2675:         fprintf(stderr,"Error: out of memory\n");
                   2676:         exit(1);
                   2677:       }
                   2678:       zSql[nSql++] = '\n';
                   2679:       memcpy(&zSql[nSql], zLine, len+1);
                   2680:       nSql += len;
                   2681:     }
                   2682:     if( zSql && _contains_semicolon(&zSql[nSqlPrior], nSql-nSqlPrior)
                   2683:                 && sqlite3_complete(zSql) ){
                   2684:       p->cnt = 0;
                   2685:       open_db(p);
                   2686:       BEGIN_TIMER;
                   2687:       rc = shell_exec(p->db, zSql, shell_callback, p, &zErrMsg);
                   2688:       END_TIMER;
                   2689:       if( rc || zErrMsg ){
                   2690:         char zPrefix[100];
                   2691:         if( in!=0 || !stdin_is_interactive ){
                   2692:           sqlite3_snprintf(sizeof(zPrefix), zPrefix,
                   2693:                            "Error: near line %d:", startline);
                   2694:         }else{
                   2695:           sqlite3_snprintf(sizeof(zPrefix), zPrefix, "Error:");
                   2696:         }
                   2697:         if( zErrMsg!=0 ){
                   2698:           fprintf(stderr, "%s %s\n", zPrefix, zErrMsg);
                   2699:           sqlite3_free(zErrMsg);
                   2700:           zErrMsg = 0;
                   2701:         }else{
                   2702:           fprintf(stderr, "%s %s\n", zPrefix, sqlite3_errmsg(p->db));
                   2703:         }
                   2704:         errCnt++;
                   2705:       }
                   2706:       free(zSql);
                   2707:       zSql = 0;
                   2708:       nSql = 0;
                   2709:     }
                   2710:   }
                   2711:   if( zSql ){
                   2712:     if( !_all_whitespace(zSql) ){
                   2713:       fprintf(stderr, "Error: incomplete SQL: %s\n", zSql);
                   2714:     }
                   2715:     free(zSql);
                   2716:   }
                   2717:   free(zLine);
1.5     ! espie    2718:   return errCnt>0;
1.1       espie    2719: }
                   2720:
                   2721: /*
                   2722: ** Return a pathname which is the user's home directory.  A
1.2       espie    2723: ** 0 return indicates an error of some kind.
1.1       espie    2724: */
                   2725: static char *find_home_dir(void){
1.2       espie    2726:   static char *home_dir = NULL;
                   2727:   if( home_dir ) return home_dir;
1.1       espie    2728:
1.4       espie    2729: #if !defined(_WIN32) && !defined(WIN32) && !defined(_WIN32_WCE) && !defined(__RTP__) && !defined(_WRS_KERNEL)
1.2       espie    2730:   {
1.4       espie    2731:     struct passwd *pwent;
                   2732:     uid_t uid = getuid();
                   2733:     if( (pwent=getpwuid(uid)) != NULL) {
                   2734:       home_dir = pwent->pw_dir;
                   2735:     }
1.1       espie    2736:   }
                   2737: #endif
                   2738:
                   2739: #if defined(_WIN32_WCE)
                   2740:   /* Windows CE (arm-wince-mingw32ce-gcc) does not provide getenv()
                   2741:    */
1.2       espie    2742:   home_dir = "/";
1.1       espie    2743: #else
                   2744:
1.4       espie    2745: #if defined(_WIN32) || defined(WIN32)
1.1       espie    2746:   if (!home_dir) {
                   2747:     home_dir = getenv("USERPROFILE");
                   2748:   }
                   2749: #endif
                   2750:
                   2751:   if (!home_dir) {
                   2752:     home_dir = getenv("HOME");
                   2753:   }
                   2754:
1.4       espie    2755: #if defined(_WIN32) || defined(WIN32)
1.1       espie    2756:   if (!home_dir) {
                   2757:     char *zDrive, *zPath;
                   2758:     int n;
                   2759:     zDrive = getenv("HOMEDRIVE");
                   2760:     zPath = getenv("HOMEPATH");
                   2761:     if( zDrive && zPath ){
                   2762:       n = strlen30(zDrive) + strlen30(zPath) + 1;
                   2763:       home_dir = malloc( n );
                   2764:       if( home_dir==0 ) return 0;
                   2765:       sqlite3_snprintf(n, home_dir, "%s%s", zDrive, zPath);
                   2766:       return home_dir;
                   2767:     }
                   2768:     home_dir = "c:\\";
                   2769:   }
                   2770: #endif
                   2771:
                   2772: #endif /* !_WIN32_WCE */
                   2773:
                   2774:   if( home_dir ){
                   2775:     int n = strlen30(home_dir) + 1;
                   2776:     char *z = malloc( n );
                   2777:     if( z ) memcpy(z, home_dir, n);
                   2778:     home_dir = z;
                   2779:   }
                   2780:
                   2781:   return home_dir;
                   2782: }
                   2783:
                   2784: /*
                   2785: ** Read input from the file given by sqliterc_override.  Or if that
                   2786: ** parameter is NULL, take input from ~/.sqliterc
                   2787: **
                   2788: ** Returns the number of errors.
                   2789: */
                   2790: static int process_sqliterc(
                   2791:   struct callback_data *p,        /* Configuration data */
                   2792:   const char *sqliterc_override   /* Name of config file. NULL to use default */
                   2793: ){
                   2794:   char *home_dir = NULL;
                   2795:   const char *sqliterc = sqliterc_override;
                   2796:   char *zBuf = 0;
                   2797:   FILE *in = NULL;
                   2798:   int rc = 0;
                   2799:
                   2800:   if (sqliterc == NULL) {
                   2801:     home_dir = find_home_dir();
                   2802:     if( home_dir==0 ){
                   2803: #if !defined(__RTP__) && !defined(_WRS_KERNEL)
                   2804:       fprintf(stderr,"%s: Error: cannot locate your home directory\n", Argv0);
                   2805: #endif
                   2806:       return 1;
                   2807:     }
1.4       espie    2808:     sqlite3_initialize();
1.2       espie    2809:     zBuf = sqlite3_mprintf("%s/.sqliterc",home_dir);
                   2810:     sqliterc = zBuf;
1.1       espie    2811:   }
                   2812:   in = fopen(sqliterc,"rb");
                   2813:   if( in ){
                   2814:     if( stdin_is_interactive ){
                   2815:       fprintf(stderr,"-- Loading resources from %s\n",sqliterc);
                   2816:     }
                   2817:     rc = process_input(p,in);
                   2818:     fclose(in);
                   2819:   }
1.2       espie    2820:   sqlite3_free(zBuf);
1.1       espie    2821:   return rc;
                   2822: }
                   2823:
                   2824: /*
                   2825: ** Show available command line options
                   2826: */
                   2827: static const char zOptions[] =
                   2828:   "   -bail                stop after hitting an error\n"
                   2829:   "   -batch               force batch I/O\n"
                   2830:   "   -column              set output mode to 'column'\n"
1.5     ! espie    2831:   "   -cmd COMMAND         run \"COMMAND\" before reading stdin\n"
1.1       espie    2832:   "   -csv                 set output mode to 'csv'\n"
                   2833:   "   -echo                print commands before execution\n"
1.5     ! espie    2834:   "   -init FILENAME       read/process named file\n"
1.1       espie    2835:   "   -[no]header          turn headers on or off\n"
1.5     ! espie    2836: #if defined(SQLITE_ENABLE_MEMSYS3) || defined(SQLITE_ENABLE_MEMSYS5)
        !          2837:   "   -heap SIZE           Size of heap for memsys3 or memsys5\n"
        !          2838: #endif
1.1       espie    2839:   "   -help                show this message\n"
                   2840:   "   -html                set output mode to HTML\n"
                   2841:   "   -interactive         force interactive I/O\n"
                   2842:   "   -line                set output mode to 'line'\n"
                   2843:   "   -list                set output mode to 'list'\n"
                   2844: #ifdef SQLITE_ENABLE_MULTIPLEX
                   2845:   "   -multiplex           enable the multiplexor VFS\n"
                   2846: #endif
1.5     ! espie    2847:   "   -nullvalue TEXT      set text string for NULL values. Default ''\n"
        !          2848:   "   -separator SEP       set output field separator. Default: '|'\n"
1.1       espie    2849:   "   -stats               print memory stats before each finalize\n"
                   2850:   "   -version             show SQLite version\n"
                   2851:   "   -vfs NAME            use NAME as the default VFS\n"
                   2852: #ifdef SQLITE_ENABLE_VFSTRACE
                   2853:   "   -vfstrace            enable tracing of all VFS calls\n"
                   2854: #endif
                   2855: ;
                   2856: static void usage(int showDetail){
                   2857:   fprintf(stderr,
                   2858:       "Usage: %s [OPTIONS] FILENAME [SQL]\n"
                   2859:       "FILENAME is the name of an SQLite database. A new database is created\n"
                   2860:       "if the file does not previously exist.\n", Argv0);
                   2861:   if( showDetail ){
                   2862:     fprintf(stderr, "OPTIONS include:\n%s", zOptions);
                   2863:   }else{
                   2864:     fprintf(stderr, "Use the -help option for additional information\n");
                   2865:   }
                   2866:   exit(1);
                   2867: }
                   2868:
                   2869: /*
                   2870: ** Initialize the state information in data
                   2871: */
                   2872: static void main_init(struct callback_data *data) {
                   2873:   memset(data, 0, sizeof(*data));
                   2874:   data->mode = MODE_List;
                   2875:   memcpy(data->separator,"|", 2);
                   2876:   data->showHeader = 0;
                   2877:   sqlite3_config(SQLITE_CONFIG_URI, 1);
                   2878:   sqlite3_config(SQLITE_CONFIG_LOG, shellLog, data);
                   2879:   sqlite3_snprintf(sizeof(mainPrompt), mainPrompt,"sqlite> ");
                   2880:   sqlite3_snprintf(sizeof(continuePrompt), continuePrompt,"   ...> ");
                   2881:   sqlite3_config(SQLITE_CONFIG_SINGLETHREAD);
                   2882: }
                   2883:
1.5     ! espie    2884: /*
        !          2885: ** Get the argument to an --option.  Throw an error and die if no argument
        !          2886: ** is available.
        !          2887: */
        !          2888: static char *cmdline_option_value(int argc, char **argv, int i){
        !          2889:   if( i==argc ){
        !          2890:     fprintf(stderr, "%s: Error: missing argument to %s\n",
        !          2891:             argv[0], argv[argc-1]);
        !          2892:     exit(1);
        !          2893:   }
        !          2894:   return argv[i];
        !          2895: }
        !          2896:
1.1       espie    2897: int main(int argc, char **argv){
                   2898:   char *zErrMsg = 0;
                   2899:   struct callback_data data;
                   2900:   const char *zInitFile = 0;
                   2901:   char *zFirstCmd = 0;
                   2902:   int i;
                   2903:   int rc = 0;
                   2904:
                   2905:   if( strcmp(sqlite3_sourceid(),SQLITE_SOURCE_ID)!=0 ){
                   2906:     fprintf(stderr, "SQLite header and source version mismatch\n%s\n%s\n",
                   2907:             sqlite3_sourceid(), SQLITE_SOURCE_ID);
                   2908:     exit(1);
                   2909:   }
                   2910:   Argv0 = argv[0];
                   2911:   main_init(&data);
                   2912:   stdin_is_interactive = isatty(0);
                   2913:
                   2914:   /* Make sure we have a valid signal handler early, before anything
                   2915:   ** else is done.
                   2916:   */
                   2917: #ifdef SIGINT
                   2918:   signal(SIGINT, interrupt_handler);
                   2919: #endif
                   2920:
                   2921:   /* Do an initial pass through the command-line argument to locate
                   2922:   ** the name of the database file, the name of the initialization file,
                   2923:   ** the size of the alternative malloc heap,
                   2924:   ** and the first command to execute.
                   2925:   */
1.5     ! espie    2926:   for(i=1; i<argc; i++){
1.1       espie    2927:     char *z;
                   2928:     z = argv[i];
1.5     ! espie    2929:     if( z[0]!='-' ){
        !          2930:       if( data.zDbFilename==0 ){
        !          2931:         data.zDbFilename = z;
        !          2932:         continue;
        !          2933:       }
        !          2934:       if( zFirstCmd==0 ){
        !          2935:         zFirstCmd = z;
        !          2936:         continue;
        !          2937:       }
        !          2938:       fprintf(stderr,"%s: Error: too many options: \"%s\"\n", Argv0, argv[i]);
        !          2939:       fprintf(stderr,"Use -help for a list of options.\n");
        !          2940:       return 1;
        !          2941:     }
1.1       espie    2942:     if( z[1]=='-' ) z++;
                   2943:     if( strcmp(z,"-separator")==0
                   2944:      || strcmp(z,"-nullvalue")==0
                   2945:      || strcmp(z,"-cmd")==0
                   2946:     ){
1.5     ! espie    2947:       (void)cmdline_option_value(argc, argv, ++i);
1.1       espie    2948:     }else if( strcmp(z,"-init")==0 ){
1.5     ! espie    2949:       zInitFile = cmdline_option_value(argc, argv, ++i);
1.1       espie    2950:     }else if( strcmp(z,"-batch")==0 ){
1.5     ! espie    2951:       /* Need to check for batch mode here to so we can avoid printing
        !          2952:       ** informational messages (like from process_sqliterc) before
        !          2953:       ** we do the actual processing of arguments later in a second pass.
        !          2954:       */
1.1       espie    2955:       stdin_is_interactive = 0;
                   2956:     }else if( strcmp(z,"-heap")==0 ){
                   2957: #if defined(SQLITE_ENABLE_MEMSYS3) || defined(SQLITE_ENABLE_MEMSYS5)
                   2958:       int j, c;
                   2959:       const char *zSize;
                   2960:       sqlite3_int64 szHeap;
                   2961:
1.5     ! espie    2962:       zSize = cmdline_option_value(argc, argv, ++i);
1.1       espie    2963:       szHeap = atoi(zSize);
                   2964:       for(j=0; (c = zSize[j])!=0; j++){
                   2965:         if( c=='M' ){ szHeap *= 1000000; break; }
                   2966:         if( c=='K' ){ szHeap *= 1000; break; }
                   2967:         if( c=='G' ){ szHeap *= 1000000000; break; }
                   2968:       }
                   2969:       if( szHeap>0x7fff0000 ) szHeap = 0x7fff0000;
                   2970:       sqlite3_config(SQLITE_CONFIG_HEAP, malloc((int)szHeap), (int)szHeap, 64);
                   2971: #endif
                   2972: #ifdef SQLITE_ENABLE_VFSTRACE
                   2973:     }else if( strcmp(z,"-vfstrace")==0 ){
                   2974:       extern int vfstrace_register(
                   2975:          const char *zTraceName,
                   2976:          const char *zOldVfsName,
                   2977:          int (*xOut)(const char*,void*),
                   2978:          void *pOutArg,
                   2979:          int makeDefault
                   2980:       );
                   2981:       vfstrace_register("trace",0,(int(*)(const char*,void*))fputs,stderr,1);
                   2982: #endif
                   2983: #ifdef SQLITE_ENABLE_MULTIPLEX
                   2984:     }else if( strcmp(z,"-multiplex")==0 ){
                   2985:       extern int sqlite3_multiple_initialize(const char*,int);
                   2986:       sqlite3_multiplex_initialize(0, 1);
                   2987: #endif
                   2988:     }else if( strcmp(z,"-vfs")==0 ){
1.5     ! espie    2989:       sqlite3_vfs *pVfs = sqlite3_vfs_find(cmdline_option_value(argc,argv,++i));
1.1       espie    2990:       if( pVfs ){
                   2991:         sqlite3_vfs_register(pVfs, 1);
                   2992:       }else{
                   2993:         fprintf(stderr, "no such VFS: \"%s\"\n", argv[i]);
                   2994:         exit(1);
                   2995:       }
                   2996:     }
                   2997:   }
1.5     ! espie    2998:   if( data.zDbFilename==0 ){
1.1       espie    2999: #ifndef SQLITE_OMIT_MEMORYDB
                   3000:     data.zDbFilename = ":memory:";
                   3001: #else
1.5     ! espie    3002:     fprintf(stderr,"%s: Error: no database filename specified\n", Argv0);
        !          3003:     return 1;
1.1       espie    3004: #endif
                   3005:   }
                   3006:   data.out = stdout;
                   3007:
                   3008:   /* Go ahead and open the database file if it already exists.  If the
                   3009:   ** file does not exist, delay opening it.  This prevents empty database
                   3010:   ** files from being created if a user mistypes the database name argument
                   3011:   ** to the sqlite command-line tool.
                   3012:   */
                   3013:   if( access(data.zDbFilename, 0)==0 ){
                   3014:     open_db(&data);
                   3015:   }
                   3016:
                   3017:   /* Process the initialization file if there is one.  If no -init option
                   3018:   ** is given on the command line, look for a file named ~/.sqliterc and
                   3019:   ** try to process it.
                   3020:   */
                   3021:   rc = process_sqliterc(&data,zInitFile);
                   3022:   if( rc>0 ){
                   3023:     return rc;
                   3024:   }
                   3025:
                   3026:   /* Make a second pass through the command-line argument and set
                   3027:   ** options.  This second pass is delayed until after the initialization
                   3028:   ** file is processed so that the command-line arguments will override
                   3029:   ** settings in the initialization file.
                   3030:   */
1.5     ! espie    3031:   for(i=1; i<argc; i++){
1.1       espie    3032:     char *z = argv[i];
1.5     ! espie    3033:     if( z[0]!='-' ) continue;
1.1       espie    3034:     if( z[1]=='-' ){ z++; }
                   3035:     if( strcmp(z,"-init")==0 ){
                   3036:       i++;
                   3037:     }else if( strcmp(z,"-html")==0 ){
                   3038:       data.mode = MODE_Html;
                   3039:     }else if( strcmp(z,"-list")==0 ){
                   3040:       data.mode = MODE_List;
                   3041:     }else if( strcmp(z,"-line")==0 ){
                   3042:       data.mode = MODE_Line;
                   3043:     }else if( strcmp(z,"-column")==0 ){
                   3044:       data.mode = MODE_Column;
                   3045:     }else if( strcmp(z,"-csv")==0 ){
                   3046:       data.mode = MODE_Csv;
                   3047:       memcpy(data.separator,",",2);
                   3048:     }else if( strcmp(z,"-separator")==0 ){
                   3049:       sqlite3_snprintf(sizeof(data.separator), data.separator,
1.5     ! espie    3050:                        "%s",cmdline_option_value(argc,argv,++i));
1.1       espie    3051:     }else if( strcmp(z,"-nullvalue")==0 ){
                   3052:       sqlite3_snprintf(sizeof(data.nullvalue), data.nullvalue,
1.5     ! espie    3053:                        "%s",cmdline_option_value(argc,argv,++i));
1.1       espie    3054:     }else if( strcmp(z,"-header")==0 ){
                   3055:       data.showHeader = 1;
                   3056:     }else if( strcmp(z,"-noheader")==0 ){
                   3057:       data.showHeader = 0;
                   3058:     }else if( strcmp(z,"-echo")==0 ){
                   3059:       data.echoOn = 1;
                   3060:     }else if( strcmp(z,"-stats")==0 ){
                   3061:       data.statsOn = 1;
                   3062:     }else if( strcmp(z,"-bail")==0 ){
                   3063:       bail_on_error = 1;
                   3064:     }else if( strcmp(z,"-version")==0 ){
                   3065:       printf("%s %s\n", sqlite3_libversion(), sqlite3_sourceid());
                   3066:       return 0;
                   3067:     }else if( strcmp(z,"-interactive")==0 ){
                   3068:       stdin_is_interactive = 1;
                   3069:     }else if( strcmp(z,"-batch")==0 ){
                   3070:       stdin_is_interactive = 0;
                   3071:     }else if( strcmp(z,"-heap")==0 ){
                   3072:       i++;
                   3073:     }else if( strcmp(z,"-vfs")==0 ){
                   3074:       i++;
                   3075: #ifdef SQLITE_ENABLE_VFSTRACE
                   3076:     }else if( strcmp(z,"-vfstrace")==0 ){
                   3077:       i++;
                   3078: #endif
                   3079: #ifdef SQLITE_ENABLE_MULTIPLEX
                   3080:     }else if( strcmp(z,"-multiplex")==0 ){
                   3081:       i++;
                   3082: #endif
                   3083:     }else if( strcmp(z,"-help")==0 ){
                   3084:       usage(1);
                   3085:     }else if( strcmp(z,"-cmd")==0 ){
                   3086:       if( i==argc-1 ) break;
1.5     ! espie    3087:       z = cmdline_option_value(argc,argv,++i);
1.1       espie    3088:       if( z[0]=='.' ){
                   3089:         rc = do_meta_command(z, &data);
                   3090:         if( rc && bail_on_error ) return rc;
                   3091:       }else{
                   3092:         open_db(&data);
                   3093:         rc = shell_exec(data.db, z, shell_callback, &data, &zErrMsg);
                   3094:         if( zErrMsg!=0 ){
                   3095:           fprintf(stderr,"Error: %s\n", zErrMsg);
                   3096:           if( bail_on_error ) return rc!=0 ? rc : 1;
                   3097:         }else if( rc!=0 ){
                   3098:           fprintf(stderr,"Error: unable to process SQL \"%s\"\n", z);
                   3099:           if( bail_on_error ) return rc;
                   3100:         }
                   3101:       }
                   3102:     }else{
                   3103:       fprintf(stderr,"%s: Error: unknown option: %s\n", Argv0, z);
                   3104:       fprintf(stderr,"Use -help for a list of options.\n");
                   3105:       return 1;
                   3106:     }
                   3107:   }
                   3108:
                   3109:   if( zFirstCmd ){
                   3110:     /* Run just the command that follows the database name
                   3111:     */
                   3112:     if( zFirstCmd[0]=='.' ){
                   3113:       rc = do_meta_command(zFirstCmd, &data);
                   3114:     }else{
                   3115:       open_db(&data);
                   3116:       rc = shell_exec(data.db, zFirstCmd, shell_callback, &data, &zErrMsg);
                   3117:       if( zErrMsg!=0 ){
                   3118:         fprintf(stderr,"Error: %s\n", zErrMsg);
                   3119:         return rc!=0 ? rc : 1;
                   3120:       }else if( rc!=0 ){
                   3121:         fprintf(stderr,"Error: unable to process SQL \"%s\"\n", zFirstCmd);
                   3122:         return rc;
                   3123:       }
                   3124:     }
                   3125:   }else{
                   3126:     /* Run commands received from standard input
                   3127:     */
                   3128:     if( stdin_is_interactive ){
                   3129:       char *zHome;
                   3130:       char *zHistory = 0;
                   3131:       int nHistory;
                   3132:       printf(
                   3133:         "SQLite version %s %.19s\n" /*extra-version-info*/
                   3134:         "Enter \".help\" for instructions\n"
                   3135:         "Enter SQL statements terminated with a \";\"\n",
                   3136:         sqlite3_libversion(), sqlite3_sourceid()
                   3137:       );
                   3138:       zHome = find_home_dir();
                   3139:       if( zHome ){
                   3140:         nHistory = strlen30(zHome) + 20;
                   3141:         if( (zHistory = malloc(nHistory))!=0 ){
                   3142:           sqlite3_snprintf(nHistory, zHistory,"%s/.sqlite_history", zHome);
                   3143:         }
                   3144:       }
                   3145: #if defined(HAVE_READLINE) && HAVE_READLINE==1
                   3146:       if( zHistory ) read_history(zHistory);
                   3147: #endif
                   3148:       rc = process_input(&data, 0);
                   3149:       if( zHistory ){
                   3150:         stifle_history(100);
                   3151:         write_history(zHistory);
                   3152:         free(zHistory);
                   3153:       }
                   3154:     }else{
                   3155:       rc = process_input(&data, stdin);
                   3156:     }
                   3157:   }
                   3158:   set_table_name(&data, 0);
                   3159:   if( data.db ){
                   3160:     sqlite3_close(data.db);
                   3161:   }
                   3162:   return rc;
                   3163: }