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Annotation of src/usr.bin/ftp/util.c, Revision 1.17

1.17    ! deraadt     1: /*     $OpenBSD: util.c,v 1.16 1997/11/25 08:10:34 deraadt Exp $       */
1.13      millert     2: /*     $NetBSD: util.c,v 1.12 1997/08/18 10:20:27 lukem Exp $  */
1.1       millert     3:
                      4: /*
                      5:  * Copyright (c) 1985, 1989, 1993, 1994
                      6:  *     The Regents of the University of California.  All rights reserved.
                      7:  *
                      8:  * Redistribution and use in source and binary forms, with or without
                      9:  * modification, are permitted provided that the following conditions
                     10:  * are met:
                     11:  * 1. Redistributions of source code must retain the above copyright
                     12:  *    notice, this list of conditions and the following disclaimer.
                     13:  * 2. Redistributions in binary form must reproduce the above copyright
                     14:  *    notice, this list of conditions and the following disclaimer in the
                     15:  *    documentation and/or other materials provided with the distribution.
                     16:  * 3. All advertising materials mentioning features or use of this software
                     17:  *    must display the following acknowledgement:
                     18:  *     This product includes software developed by the University of
                     19:  *     California, Berkeley and its contributors.
                     20:  * 4. Neither the name of the University nor the names of its contributors
                     21:  *    may be used to endorse or promote products derived from this software
                     22:  *    without specific prior written permission.
                     23:  *
                     24:  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
                     25:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
                     26:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
                     27:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
                     28:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
                     29:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
                     30:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
                     31:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
                     32:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
                     33:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
                     34:  * SUCH DAMAGE.
                     35:  */
                     36:
                     37: #ifndef lint
1.17    ! deraadt    38: static char rcsid[] = "$OpenBSD: util.c,v 1.16 1997/11/25 08:10:34 deraadt Exp $";
1.1       millert    39: #endif /* not lint */
                     40:
                     41: /*
                     42:  * FTP User Program -- Misc support routines
                     43:  */
                     44: #include <sys/ioctl.h>
                     45: #include <sys/time.h>
                     46: #include <arpa/ftp.h>
                     47:
                     48: #include <ctype.h>
                     49: #include <err.h>
1.3       millert    50: #include <errno.h>
1.1       millert    51: #include <fcntl.h>
1.11      millert    52: #include <limits.h>
1.1       millert    53: #include <glob.h>
1.6       millert    54: #include <pwd.h>
1.3       millert    55: #include <signal.h>
1.1       millert    56: #include <stdio.h>
1.2       millert    57: #include <stdlib.h>
1.1       millert    58: #include <string.h>
                     59: #include <time.h>
1.17    ! deraadt    60: #include <tzfile.h>
1.1       millert    61: #include <unistd.h>
                     62:
                     63: #include "ftp_var.h"
                     64: #include "pathnames.h"
                     65:
                     66: /*
                     67:  * Connect to peer server and
                     68:  * auto-login, if possible.
                     69:  */
                     70: void
                     71: setpeer(argc, argv)
                     72:        int argc;
                     73:        char *argv[];
                     74: {
                     75:        char *host;
1.11      millert    76:        in_port_t port;
1.1       millert    77:
                     78:        if (connected) {
1.7       deraadt    79:                fprintf(ttyout, "Already connected to %s, use close first.\n",
1.2       millert    80:                    hostname);
1.1       millert    81:                code = -1;
                     82:                return;
                     83:        }
                     84:        if (argc < 2)
1.2       millert    85:                (void)another(&argc, &argv, "to");
1.1       millert    86:        if (argc < 2 || argc > 3) {
1.7       deraadt    87:                fprintf(ttyout, "usage: %s host-name [port]\n", argv[0]);
1.1       millert    88:                code = -1;
                     89:                return;
                     90:        }
1.13      millert    91:        if (gatemode)
                     92:                port = gateport;
                     93:        else
                     94:                port = ftpport;
1.1       millert    95:        if (argc > 2) {
1.11      millert    96:                char *ep;
                     97:                long nport;
                     98:
                     99:                nport = strtol(argv[2], &ep, 10);
1.13      millert   100:                if (nport < 1 || nport > USHRT_MAX || *ep != '\0') {
1.11      millert   101:                        fprintf(ttyout, "%s: bad port number '%s'.\n",
                    102:                            argv[1], argv[2]);
                    103:                        fprintf(ttyout, "usage: %s host-name [port]\n",
                    104:                            argv[0]);
1.1       millert   105:                        code = -1;
                    106:                        return;
                    107:                }
1.11      millert   108:                port = htons((in_port_t)nport);
1.1       millert   109:        }
1.13      millert   110:
                    111:        if (gatemode) {
                    112:                if (gateserver == NULL || *gateserver == '\0')
                    113:                        errx(1, "gateserver not defined (shouldn't happen)");
                    114:                host = hookup(gateserver, port);
                    115:        } else
                    116:                host = hookup(argv[1], port);
                    117:
1.1       millert   118:        if (host) {
                    119:                int overbose;
                    120:
1.13      millert   121:                if (gatemode) {
                    122:                        if (command("PASSERVE %s", argv[1]) != COMPLETE)
                    123:                                return;
                    124:                        if (verbose)
                    125:                                fprintf(ttyout,
                    126:                                    "Connected via pass-through server %s\n",
                    127:                                    gateserver);
                    128:                }
                    129:
1.1       millert   130:                connected = 1;
                    131:                /*
                    132:                 * Set up defaults for FTP.
                    133:                 */
1.2       millert   134:                (void)strcpy(typename, "ascii"), type = TYPE_A;
1.1       millert   135:                curtype = TYPE_A;
1.2       millert   136:                (void)strcpy(formname, "non-print"), form = FORM_N;
                    137:                (void)strcpy(modename, "stream"), mode = MODE_S;
                    138:                (void)strcpy(structname, "file"), stru = STRU_F;
                    139:                (void)strcpy(bytename, "8"), bytesize = 8;
1.1       millert   140:                if (autologin)
1.6       millert   141:                        (void)login(argv[1], NULL, NULL);
1.1       millert   142:
1.2       millert   143: #if (defined(unix) || defined(BSD)) && NBBY == 8
                    144: /*
                    145:  * this ifdef is to keep someone form "porting" this to an incompatible
                    146:  * system and not checking this out. This way they have to think about it.
                    147:  */
1.1       millert   148:                overbose = verbose;
                    149:                if (debug == 0)
                    150:                        verbose = -1;
                    151:                if (command("SYST") == COMPLETE && overbose) {
                    152:                        char *cp, c;
                    153:                        c = 0;
1.4       millert   154:                        cp = strchr(reply_string + 4, ' ');
1.1       millert   155:                        if (cp == NULL)
1.4       millert   156:                                cp = strchr(reply_string + 4, '\r');
1.1       millert   157:                        if (cp) {
                    158:                                if (cp[-1] == '.')
                    159:                                        cp--;
                    160:                                c = *cp;
                    161:                                *cp = '\0';
                    162:                        }
                    163:
1.7       deraadt   164:                        fprintf(ttyout, "Remote system type is %s.\n", reply_string + 4);
1.1       millert   165:                        if (cp)
                    166:                                *cp = c;
                    167:                }
                    168:                if (!strncmp(reply_string, "215 UNIX Type: L8", 17)) {
                    169:                        if (proxy)
                    170:                                unix_proxy = 1;
                    171:                        else
                    172:                                unix_server = 1;
                    173:                        /*
                    174:                         * Set type to 0 (not specified by user),
                    175:                         * meaning binary by default, but don't bother
                    176:                         * telling server.  We can use binary
                    177:                         * for text files unless changed by the user.
                    178:                         */
                    179:                        type = 0;
1.2       millert   180:                        (void)strcpy(typename, "binary");
1.1       millert   181:                        if (overbose)
1.7       deraadt   182:                                fprintf(ttyout, "Using %s mode to transfer files.\n",
                    183:                                    typename);
1.1       millert   184:                } else {
                    185:                        if (proxy)
                    186:                                unix_proxy = 0;
                    187:                        else
                    188:                                unix_server = 0;
                    189:                        if (overbose &&
                    190:                            !strncmp(reply_string, "215 TOPS20", 10))
1.7       deraadt   191:                                fputs(
                    192: "Remember to set tenex mode when transferring binary files from this machine.\n",
                    193:                                    ttyout);
1.1       millert   194:                }
                    195:                verbose = overbose;
1.2       millert   196: #endif /* unix || BSD */
1.1       millert   197:        }
1.6       millert   198: }
                    199:
                    200: /*
                    201:  * login to remote host, using given username & password if supplied
                    202:  */
                    203: int
                    204: login(host, user, pass)
                    205:        const char *host;
                    206:        char *user, *pass;
                    207: {
                    208:        char tmp[80];
                    209:        char *acct;
                    210:        char anonpass[MAXLOGNAME + 1 + MAXHOSTNAMELEN]; /* "user@hostname" */
                    211:        char hostname[MAXHOSTNAMELEN];
1.14      millert   212:        struct passwd *pw;
1.11      millert   213:        int n, aflag = 0, retry = 0;
1.6       millert   214:
                    215:        acct = NULL;
                    216:        if (user == NULL) {
                    217:                if (ruserpass(host, &user, &pass, &acct) < 0) {
                    218:                        code = -1;
                    219:                        return (0);
                    220:                }
                    221:        }
                    222:
                    223:        /*
                    224:         * Set up arguments for an anonymous FTP session, if necessary.
                    225:         */
                    226:        if ((user == NULL || pass == NULL) && anonftp) {
                    227:                memset(anonpass, 0, sizeof(anonpass));
                    228:                memset(hostname, 0, sizeof(hostname));
                    229:
                    230:                /*
                    231:                 * Set up anonymous login password.
                    232:                 */
1.14      millert   233:                if ((user = getlogin()) == NULL) {
                    234:                        if ((pw = getpwuid(getuid())) == NULL)
                    235:                                user = "anonymous";
                    236:                        else
                    237:                                user = pw->pw_name;
                    238:                }
1.6       millert   239:                gethostname(hostname, MAXHOSTNAMELEN);
                    240: #ifndef DONT_CHEAT_ANONPASS
                    241:                /*
                    242:                 * Every anonymous FTP server I've encountered
                    243:                 * will accept the string "username@", and will
                    244:                 * append the hostname itself.  We do this by default
                    245:                 * since many servers are picky about not having
                    246:                 * a FQDN in the anonymous password. - thorpej@netbsd.org
                    247:                 */
                    248:                snprintf(anonpass, sizeof(anonpass) - 1, "%s@",
                    249:                    user);
                    250: #else
                    251:                snprintf(anonpass, sizeof(anonpass) - 1, "%s@%s",
                    252:                    user, hp->h_name);
                    253: #endif
                    254:                pass = anonpass;
1.11      millert   255:                user = "anonymous";     /* as per RFC 1635 */
1.8       jkatz     256:        }
                    257:
                    258: tryagain:
1.9       millert   259:        if (retry)
1.11      millert   260:                user = "ftp";           /* some servers only allow "ftp" */
1.8       jkatz     261:
1.6       millert   262:        while (user == NULL) {
                    263:                char *myname = getlogin();
                    264:
1.14      millert   265:                if (myname == NULL && (pw = getpwuid(getuid())) != NULL)
                    266:                        myname = pw->pw_name;
1.6       millert   267:                if (myname)
1.7       deraadt   268:                        fprintf(ttyout, "Name (%s:%s): ", host, myname);
1.6       millert   269:                else
1.7       deraadt   270:                        fprintf(ttyout, "Name (%s): ", host);
1.6       millert   271:                (void)fgets(tmp, sizeof(tmp) - 1, stdin);
                    272:                tmp[strlen(tmp) - 1] = '\0';
                    273:                if (*tmp == '\0')
                    274:                        user = myname;
                    275:                else
                    276:                        user = tmp;
                    277:        }
                    278:        n = command("USER %s", user);
                    279:        if (n == CONTINUE) {
                    280:                if (pass == NULL)
                    281:                        pass = getpass("Password:");
                    282:                n = command("PASS %s", pass);
                    283:        }
                    284:        if (n == CONTINUE) {
                    285:                aflag++;
                    286:                if (acct == NULL)
                    287:                        acct = getpass("Account:");
                    288:                n = command("ACCT %s", acct);
                    289:        }
                    290:        if ((n != COMPLETE) ||
                    291:            (!aflag && acct != NULL && command("ACCT %s", acct) != COMPLETE)) {
                    292:                warnx("Login failed.");
1.9       millert   293:                if (retry || !anonftp)
1.8       jkatz     294:                        return (0);
1.9       millert   295:                else
                    296:                        retry = 1;
1.8       jkatz     297:                goto tryagain;
1.6       millert   298:        }
                    299:        if (proxy)
                    300:                return (1);
                    301:        connected = -1;
                    302:        for (n = 0; n < macnum; ++n) {
                    303:                if (!strcmp("init", macros[n].mac_name)) {
                    304:                        (void)strcpy(line, "$init");
                    305:                        makeargv();
                    306:                        domacro(margc, margv);
                    307:                        break;
                    308:                }
                    309:        }
                    310:        return (1);
1.1       millert   311: }
                    312:
                    313: /*
1.4       millert   314:  * `another' gets another argument, and stores the new argc and argv.
1.1       millert   315:  * It reverts to the top level (via main.c's intr()) on EOF/error.
                    316:  *
                    317:  * Returns false if no new arguments have been added.
                    318:  */
                    319: int
                    320: another(pargc, pargv, prompt)
                    321:        int *pargc;
                    322:        char ***pargv;
                    323:        const char *prompt;
                    324: {
                    325:        int len = strlen(line), ret;
                    326:
                    327:        if (len >= sizeof(line) - 3) {
1.7       deraadt   328:                fputs("sorry, arguments too long.\n", ttyout);
1.1       millert   329:                intr();
                    330:        }
1.7       deraadt   331:        fprintf(ttyout, "(%s) ", prompt);
1.1       millert   332:        line[len++] = ' ';
1.11      millert   333:        if (fgets(&line[len], (int)(sizeof(line) - len), stdin) == NULL)
1.1       millert   334:                intr();
                    335:        len += strlen(&line[len]);
                    336:        if (len > 0 && line[len - 1] == '\n')
                    337:                line[len - 1] = '\0';
                    338:        makeargv();
                    339:        ret = margc > *pargc;
                    340:        *pargc = margc;
                    341:        *pargv = margv;
                    342:        return (ret);
                    343: }
                    344:
1.4       millert   345: /*
                    346:  * glob files given in argv[] from the remote server.
                    347:  * if errbuf isn't NULL, store error messages there instead
                    348:  * of writing to the screen.
                    349:  */
1.1       millert   350: char *
1.4       millert   351: remglob(argv, doswitch, errbuf)
1.1       millert   352:         char *argv[];
                    353:         int doswitch;
1.4       millert   354:        char **errbuf;
1.1       millert   355: {
                    356:         char temp[MAXPATHLEN];
                    357:         static char buf[MAXPATHLEN];
                    358:         static FILE *ftemp = NULL;
                    359:         static char **args;
                    360:         int oldverbose, oldhash, fd;
                    361:         char *cp, *mode;
                    362:
                    363:         if (!mflag) {
1.4       millert   364:                 if (!doglob)
1.1       millert   365:                         args = NULL;
                    366:                 else {
                    367:                         if (ftemp) {
1.2       millert   368:                                 (void)fclose(ftemp);
1.1       millert   369:                                 ftemp = NULL;
                    370:                         }
                    371:                 }
                    372:                 return (NULL);
                    373:         }
                    374:         if (!doglob) {
                    375:                 if (args == NULL)
                    376:                         args = argv;
                    377:                 if ((cp = *++args) == NULL)
                    378:                         args = NULL;
                    379:                 return (cp);
                    380:         }
                    381:         if (ftemp == NULL) {
1.3       millert   382:                int len;
                    383:
                    384:                if ((cp = getenv("TMPDIR")) == NULL)
                    385:                    cp = _PATH_TMP;
                    386:                len = strlen(cp);
                    387:                if (len + sizeof(TMPFILE) + (cp[len-1] != '/') > sizeof(temp)) {
                    388:                        warnx("unable to create temporary file: %s",
                    389:                            strerror(ENAMETOOLONG));
                    390:                        return (NULL);
                    391:                }
                    392:
                    393:                (void)strcpy(temp, cp);
                    394:                if (temp[len-1] != '/')
                    395:                        temp[len++] = '/';
                    396:                (void)strcpy(&temp[len], TMPFILE);
                    397:                 if ((fd = mkstemp(temp)) < 0) {
1.1       millert   398:                         warn("unable to create temporary file %s", temp);
                    399:                         return (NULL);
                    400:                 }
                    401:                 close(fd);
1.4       millert   402:                oldverbose = verbose;
                    403:                verbose = (errbuf != NULL) ? -1 : 0;
                    404:                oldhash = hash;
                    405:                hash = 0;
                    406:                 if (doswitch)
1.1       millert   407:                         pswitch(!proxy);
                    408:                 for (mode = "w"; *++argv != NULL; mode = "a")
1.13      millert   409:                         recvrequest("NLST", temp, *argv, mode, 0, 0);
1.4       millert   410:                if ((code / 100) != COMPLETE) {
                    411:                        if (errbuf != NULL)
                    412:                                *errbuf = reply_string;
                    413:                }
                    414:                if (doswitch)
                    415:                        pswitch(!proxy);
                    416:                 verbose = oldverbose;
                    417:                hash = oldhash;
1.1       millert   418:                 ftemp = fopen(temp, "r");
1.2       millert   419:                 (void)unlink(temp);
1.1       millert   420:                 if (ftemp == NULL) {
1.4       millert   421:                        if (errbuf == NULL)
1.7       deraadt   422:                                fputs("can't find list of remote files, oops.\n",
                    423:                                    ttyout);
1.4       millert   424:                        else
                    425:                                *errbuf =
                    426:                                    "can't find list of remote files, oops.";
1.1       millert   427:                         return (NULL);
                    428:                 }
                    429:         }
1.2       millert   430:         if (fgets(buf, sizeof(buf), ftemp) == NULL) {
1.4       millert   431:                 (void)fclose(ftemp);
                    432:                ftemp = NULL;
1.1       millert   433:                 return (NULL);
                    434:         }
                    435:         if ((cp = strchr(buf, '\n')) != NULL)
                    436:                 *cp = '\0';
                    437:         return (buf);
                    438: }
                    439:
                    440: int
                    441: confirm(cmd, file)
                    442:        const char *cmd, *file;
                    443: {
                    444:        char line[BUFSIZ];
                    445:
                    446:        if (!interactive || confirmrest)
                    447:                return (1);
1.16      deraadt   448: top:
1.7       deraadt   449:        fprintf(ttyout, "%s %s? ", cmd, file);
                    450:        (void)fflush(ttyout);
1.1       millert   451:        if (fgets(line, sizeof(line), stdin) == NULL)
                    452:                return (0);
                    453:        switch (tolower(*line)) {
                    454:                case 'n':
                    455:                        return (0);
                    456:                case 'p':
                    457:                        interactive = 0;
1.7       deraadt   458:                        fputs("Interactive mode: off.\n", ttyout);
1.1       millert   459:                        break;
                    460:                case 'a':
                    461:                        confirmrest = 1;
1.7       deraadt   462:                        fprintf(ttyout, "Prompting off for duration of %s.\n", cmd);
1.12      jkatz     463:                        break;
                    464:                case 'y':
                    465:                        return(1);
                    466:                        break;
                    467:                default:
                    468:                        fprintf(ttyout, "n, y, p, a, are the only acceptable commands!\n");
1.16      deraadt   469:                        goto top;
1.1       millert   470:                        break;
                    471:        }
                    472:        return (1);
                    473: }
                    474:
                    475: /*
                    476:  * Glob a local file name specification with
                    477:  * the expectation of a single return value.
                    478:  * Can't control multiple values being expanded
                    479:  * from the expression, we return only the first.
                    480:  */
                    481: int
                    482: globulize(cpp)
                    483:        char **cpp;
                    484: {
                    485:        glob_t gl;
                    486:        int flags;
                    487:
                    488:        if (!doglob)
                    489:                return (1);
                    490:
                    491:        flags = GLOB_BRACE|GLOB_NOCHECK|GLOB_QUOTE|GLOB_TILDE;
                    492:        memset(&gl, 0, sizeof(gl));
                    493:        if (glob(*cpp, flags, NULL, &gl) ||
                    494:            gl.gl_pathc == 0) {
                    495:                warnx("%s: not found", *cpp);
                    496:                globfree(&gl);
                    497:                return (0);
                    498:        }
1.13      millert   499:                /* XXX: caller should check if *cpp changed, and
                    500:                 *      free(*cpp) if that is the case
                    501:                 */
                    502:        *cpp = strdup(gl.gl_pathv[0]);
1.1       millert   503:        globfree(&gl);
                    504:        return (1);
                    505: }
                    506:
                    507: /*
                    508:  * determine size of remote file
                    509:  */
                    510: off_t
                    511: remotesize(file, noisy)
                    512:        const char *file;
                    513:        int noisy;
                    514: {
                    515:        int overbose;
                    516:        off_t size;
                    517:
                    518:        overbose = verbose;
                    519:        size = -1;
                    520:        if (debug == 0)
                    521:                verbose = -1;
1.11      millert   522:        if (command("SIZE %s", file) == COMPLETE) {
                    523:                char *cp, *ep;
                    524:
                    525:                cp = strchr(reply_string, ' ');
                    526:                if (cp != NULL) {
                    527:                        cp++;
                    528:                        size = strtoq(cp, &ep, 10);
                    529:                        if (*ep != '\0' && !isspace(*ep))
                    530:                                size = -1;
                    531:                }
                    532:        } else if (noisy && debug == 0) {
1.7       deraadt   533:                fputs(reply_string, ttyout);
1.11      millert   534:                fputc('\n', ttyout);
1.7       deraadt   535:        }
1.1       millert   536:        verbose = overbose;
                    537:        return (size);
                    538: }
                    539:
                    540: /*
                    541:  * determine last modification time (in GMT) of remote file
                    542:  */
                    543: time_t
                    544: remotemodtime(file, noisy)
                    545:        const char *file;
                    546:        int noisy;
                    547: {
                    548:        int overbose;
                    549:        time_t rtime;
1.15      millert   550:        int ocode;
1.1       millert   551:
                    552:        overbose = verbose;
1.15      millert   553:        ocode = code;
1.1       millert   554:        rtime = -1;
                    555:        if (debug == 0)
                    556:                verbose = -1;
                    557:        if (command("MDTM %s", file) == COMPLETE) {
                    558:                struct tm timebuf;
                    559:                int yy, mo, day, hour, min, sec;
                    560:                sscanf(reply_string, "%*s %04d%02d%02d%02d%02d%02d", &yy, &mo,
                    561:                        &day, &hour, &min, &sec);
                    562:                memset(&timebuf, 0, sizeof(timebuf));
                    563:                timebuf.tm_sec = sec;
                    564:                timebuf.tm_min = min;
                    565:                timebuf.tm_hour = hour;
                    566:                timebuf.tm_mday = day;
                    567:                timebuf.tm_mon = mo - 1;
1.17    ! deraadt   568:                timebuf.tm_year = yy - TM_YEAR_BASE;
1.1       millert   569:                timebuf.tm_isdst = -1;
                    570:                rtime = mktime(&timebuf);
                    571:                if (rtime == -1 && (noisy || debug != 0))
1.7       deraadt   572:                        fprintf(ttyout, "Can't convert %s to a time.\n", reply_string);
1.1       millert   573:                else
                    574:                        rtime += timebuf.tm_gmtoff;     /* conv. local -> GMT */
1.7       deraadt   575:        } else if (noisy && debug == 0) {
                    576:                fputs(reply_string, ttyout);
1.11      millert   577:                fputc('\n', ttyout);
1.7       deraadt   578:        }
1.1       millert   579:        verbose = overbose;
1.15      millert   580:        if (rtime == -1)
                    581:                code = ocode;
1.1       millert   582:        return (rtime);
                    583: }
                    584:
1.10      millert   585: /*
                    586:  * Returns true if this is the controlling/foreground process, else false.
                    587:  */
                    588: int
                    589: foregroundproc()
                    590: {
                    591:        static pid_t pgrp = -1;
                    592:        int ctty_pgrp;
                    593:
                    594:        if (pgrp == -1)
                    595:                pgrp = getpgrp();
                    596:
                    597:        return((ioctl(STDOUT_FILENO, TIOCGPGRP, &ctty_pgrp) != -1 &&
                    598:            ctty_pgrp == pgrp));
                    599: }
                    600:
1.11      millert   601: void updateprogressmeter __P((int));
                    602:
1.1       millert   603: void
1.11      millert   604: updateprogressmeter(dummy)
                    605:        int dummy;
1.1       millert   606: {
                    607:
1.10      millert   608:        if (foregroundproc())
                    609:                progressmeter(0);
1.1       millert   610: }
                    611:
                    612: /*
                    613:  * Display a transfer progress bar if progress is non-zero.
                    614:  * SIGALRM is hijacked for use by this function.
                    615:  * - Before the transfer, set filesize to size of file (or -1 if unknown),
                    616:  *   and call with flag = -1. This starts the once per second timer,
                    617:  *   and a call to updateprogressmeter() upon SIGALRM.
                    618:  * - During the transfer, updateprogressmeter will call progressmeter
                    619:  *   with flag = 0
                    620:  * - After the transfer, call with flag = 1
                    621:  */
                    622: static struct timeval start;
                    623:
                    624: void
                    625: progressmeter(flag)
                    626:        int flag;
                    627: {
                    628:        /*
                    629:         * List of order of magnitude prefixes.
                    630:         * The last is `P', as 2^64 = 16384 Petabytes
                    631:         */
                    632:        static const char prefixes[] = " KMGTP";
                    633:
                    634:        static struct timeval lastupdate;
                    635:        static off_t lastsize;
                    636:        struct timeval now, td, wait;
                    637:        off_t cursize, abbrevsize;
                    638:        double elapsed;
                    639:        int ratio, barlength, i, remaining;
                    640:        char buf[256];
                    641:
                    642:        if (flag == -1) {
1.2       millert   643:                (void)gettimeofday(&start, (struct timezone *)0);
1.1       millert   644:                lastupdate = start;
                    645:                lastsize = restart_point;
                    646:        }
1.2       millert   647:        (void)gettimeofday(&now, (struct timezone *)0);
1.1       millert   648:        if (!progress || filesize <= 0)
                    649:                return;
                    650:        cursize = bytes + restart_point;
                    651:
                    652:        ratio = cursize * 100 / filesize;
                    653:        ratio = MAX(ratio, 0);
                    654:        ratio = MIN(ratio, 100);
                    655:        snprintf(buf, sizeof(buf), "\r%3d%% ", ratio);
                    656:
                    657:        barlength = ttywidth - 30;
                    658:        if (barlength > 0) {
                    659:                i = barlength * ratio / 100;
                    660:                snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
                    661:                    "|%.*s%*s|", i,
                    662: "*****************************************************************************"
                    663: "*****************************************************************************",
                    664:                    barlength - i, "");
                    665:        }
                    666:
                    667:        i = 0;
                    668:        abbrevsize = cursize;
                    669:        while (abbrevsize >= 100000 && i < sizeof(prefixes)) {
                    670:                i++;
                    671:                abbrevsize >>= 10;
                    672:        }
                    673:        snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1.11      millert   674:            " %5qd %c%c ", (quad_t)abbrevsize, prefixes[i],
1.1       millert   675:            prefixes[i] == ' ' ? ' ' : 'B');
                    676:
                    677:        timersub(&now, &lastupdate, &wait);
                    678:        if (cursize > lastsize) {
                    679:                lastupdate = now;
                    680:                lastsize = cursize;
                    681:                if (wait.tv_sec >= STALLTIME) { /* fudge out stalled time */
                    682:                        start.tv_sec += wait.tv_sec;
                    683:                        start.tv_usec += wait.tv_usec;
                    684:                }
                    685:                wait.tv_sec = 0;
                    686:        }
                    687:
                    688:        timersub(&now, &start, &td);
                    689:        elapsed = td.tv_sec + (td.tv_usec / 1000000.0);
                    690:
1.11      millert   691:        if (bytes <= 0 || elapsed <= 0.0 || cursize > filesize) {
1.1       millert   692:                snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
                    693:                    "   --:-- ETA");
                    694:        } else if (wait.tv_sec >= STALLTIME) {
                    695:                snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
                    696:                    " - stalled -");
                    697:        } else {
                    698:                remaining = (int)((filesize - restart_point) /
                    699:                                  (bytes / elapsed) - elapsed);
                    700:                i = remaining / 3600;
                    701:                if (i)
                    702:                        snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
                    703:                            "%2d:", i);
                    704:                else
                    705:                        snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
                    706:                            "   ");
                    707:                i = remaining % 3600;
                    708:                snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
                    709:                    "%02d:%02d ETA", i / 60, i % 60);
                    710:        }
1.7       deraadt   711:        (void)write(fileno(ttyout), buf, strlen(buf));
1.1       millert   712:
                    713:        if (flag == -1) {
1.2       millert   714:                (void)signal(SIGALRM, updateprogressmeter);
1.1       millert   715:                alarmtimer(1);          /* set alarm timer for 1 Hz */
                    716:        } else if (flag == 1) {
                    717:                alarmtimer(0);
1.7       deraadt   718:                (void)putc('\n', ttyout);
1.1       millert   719:        }
1.7       deraadt   720:        fflush(ttyout);
1.1       millert   721: }
                    722:
                    723: /*
                    724:  * Display transfer statistics.
                    725:  * Requires start to be initialised by progressmeter(-1),
                    726:  * direction to be defined by xfer routines, and filesize and bytes
                    727:  * to be updated by xfer routines
                    728:  * If siginfo is nonzero, an ETA is displayed, and the output goes to STDERR
1.7       deraadt   729:  * instead of TTYOUT.
1.1       millert   730:  */
                    731: void
                    732: ptransfer(siginfo)
                    733:        int siginfo;
                    734: {
                    735:        struct timeval now, td;
                    736:        double elapsed;
                    737:        off_t bs;
                    738:        int meg, remaining, hh;
                    739:        char buf[100];
                    740:
                    741:        if (!verbose && !siginfo)
                    742:                return;
                    743:
1.2       millert   744:        (void)gettimeofday(&now, (struct timezone *)0);
1.1       millert   745:        timersub(&now, &start, &td);
                    746:        elapsed = td.tv_sec + (td.tv_usec / 1000000.0);
                    747:        bs = bytes / (elapsed == 0.0 ? 1 : elapsed);
                    748:        meg = 0;
                    749:        if (bs > (1024 * 1024))
                    750:                meg = 1;
                    751:        (void)snprintf(buf, sizeof(buf),
                    752:            "%qd byte%s %s in %.2f seconds (%.2f %sB/s)\n",
1.11      millert   753:            (quad_t)bytes, bytes == 1 ? "" : "s", direction, elapsed,
1.1       millert   754:            bs / (1024.0 * (meg ? 1024.0 : 1.0)), meg ? "M" : "K");
1.11      millert   755:        if (siginfo && bytes > 0 && elapsed > 0.0 && filesize >= 0
                    756:            && bytes + restart_point <= filesize) {
1.1       millert   757:                remaining = (int)((filesize - restart_point) /
                    758:                                  (bytes / elapsed) - elapsed);
                    759:                hh = remaining / 3600;
                    760:                remaining %= 3600;
1.11      millert   761:                        /* "buf+len(buf) -1" to overwrite \n */
1.1       millert   762:                snprintf(buf + strlen(buf) - 1, sizeof(buf) - strlen(buf),
                    763:                    "  ETA: %02d:%02d:%02d\n", hh, remaining / 60,
                    764:                    remaining % 60);
                    765:        }
1.7       deraadt   766:        (void)write(siginfo ? STDERR_FILENO : fileno(ttyout), buf, strlen(buf));
1.1       millert   767: }
                    768:
                    769: /*
                    770:  * List words in stringlist, vertically arranged
                    771:  */
                    772: void
                    773: list_vertical(sl)
                    774:        StringList *sl;
                    775: {
                    776:        int i, j, w;
                    777:        int columns, width, lines, items;
                    778:        char *p;
                    779:
                    780:        width = items = 0;
                    781:
                    782:        for (i = 0 ; i < sl->sl_cur ; i++) {
                    783:                w = strlen(sl->sl_str[i]);
                    784:                if (w > width)
                    785:                        width = w;
                    786:        }
                    787:        width = (width + 8) &~ 7;
                    788:
                    789:        columns = ttywidth / width;
                    790:        if (columns == 0)
                    791:                columns = 1;
                    792:        lines = (sl->sl_cur + columns - 1) / columns;
                    793:        for (i = 0; i < lines; i++) {
                    794:                for (j = 0; j < columns; j++) {
                    795:                        p = sl->sl_str[j * lines + i];
                    796:                        if (p)
1.7       deraadt   797:                                fputs(p, ttyout);
1.1       millert   798:                        if (j * lines + i + lines >= sl->sl_cur) {
1.7       deraadt   799:                                putc('\n', ttyout);
1.1       millert   800:                                break;
                    801:                        }
                    802:                        w = strlen(p);
                    803:                        while (w < width) {
                    804:                                w = (w + 8) &~ 7;
1.7       deraadt   805:                                (void)putc('\t', ttyout);
1.1       millert   806:                        }
                    807:                }
                    808:        }
                    809: }
                    810:
                    811: /*
                    812:  * Update the global ttywidth value, using TIOCGWINSZ.
                    813:  */
                    814: void
                    815: setttywidth(a)
                    816:        int a;
                    817: {
                    818:        struct winsize winsize;
                    819:
1.7       deraadt   820:        if (ioctl(fileno(ttyout), TIOCGWINSZ, &winsize) != -1)
1.1       millert   821:                ttywidth = winsize.ws_col;
                    822:        else
                    823:                ttywidth = 80;
                    824: }
                    825:
                    826: /*
                    827:  * Set the SIGALRM interval timer for wait seconds, 0 to disable.
                    828:  */
                    829: void
                    830: alarmtimer(wait)
                    831:        int wait;
                    832: {
                    833:        struct itimerval itv;
                    834:
                    835:        itv.it_value.tv_sec = wait;
                    836:        itv.it_value.tv_usec = 0;
                    837:        itv.it_interval = itv.it_value;
                    838:        setitimer(ITIMER_REAL, &itv, NULL);
                    839: }
1.5       millert   840:
                    841: /*
                    842:  * Setup or cleanup EditLine structures
                    843:  */
                    844: #ifndef SMALL
                    845: void
                    846: controlediting()
                    847: {
                    848:        if (editing && el == NULL && hist == NULL) {
1.7       deraadt   849:                el = el_init(__progname, stdin, ttyout); /* init editline */
1.5       millert   850:                hist = history_init();          /* init the builtin history */
                    851:                history(hist, H_EVENT, 100);    /* remember 100 events */
                    852:                el_set(el, EL_HIST, history, hist);     /* use history */
                    853:
                    854:                el_set(el, EL_EDITOR, "emacs"); /* default editor is emacs */
                    855:                el_set(el, EL_PROMPT, prompt);  /* set the prompt function */
                    856:
                    857:                /* add local file completion, bind to TAB */
                    858:                el_set(el, EL_ADDFN, "ftp-complete",
                    859:                    "Context sensitive argument completion",
                    860:                    complete);
                    861:                el_set(el, EL_BIND, "^I", "ftp-complete", NULL);
                    862:
                    863:                el_source(el, NULL);    /* read ~/.editrc */
                    864:                el_set(el, EL_SIGNAL, 1);
                    865:        } else if (!editing) {
                    866:                if (hist) {
                    867:                        history_end(hist);
                    868:                        hist = NULL;
                    869:                }
                    870:                if (el) {
                    871:                        el_end(el);
                    872:                        el = NULL;
                    873:                }
                    874:        }
                    875: }
                    876: #endif /* !SMALL */