Annotation of src/usr.bin/cvs/rcs.c, Revision 1.64
1.64 ! niallo 1: /* $OpenBSD: rcs.c,v 1.63 2005/09/18 06:19:10 joris Exp $ */
1.1 jfb 2: /*
3: * Copyright (c) 2004 Jean-Francois Brousseau <jfb@openbsd.org>
1.15 tedu 4: * All rights reserved.
1.1 jfb 5: *
1.15 tedu 6: * Redistribution and use in source and binary forms, with or without
7: * modification, are permitted provided that the following conditions
8: * are met:
1.1 jfb 9: *
1.15 tedu 10: * 1. Redistributions of source code must retain the above copyright
11: * notice, this list of conditions and the following disclaimer.
1.1 jfb 12: * 2. The name of the author may not be used to endorse or promote products
1.15 tedu 13: * derived from this software without specific prior written permission.
1.1 jfb 14: *
15: * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
16: * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
17: * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
18: * THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
19: * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
20: * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
21: * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
22: * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
23: * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
1.15 tedu 24: * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
1.1 jfb 25: */
26:
27: #include <sys/param.h>
28: #include <sys/stat.h>
29:
1.55 xsa 30: #include <ctype.h>
31: #include <errno.h>
1.63 joris 32: #include <libgen.h>
1.52 jfb 33: #include <pwd.h>
1.55 xsa 34: #include <stdarg.h>
1.1 jfb 35: #include <stdio.h>
36: #include <stdlib.h>
37: #include <string.h>
1.55 xsa 38: #include <unistd.h>
1.1 jfb 39:
1.55 xsa 40: #include "log.h"
1.1 jfb 41: #include "rcs.h"
1.39 joris 42: #include "strtab.h"
1.1 jfb 43:
1.57 xsa 44: #define RCS_BUFSIZE 16384
45: #define RCS_BUFEXTSIZE 8192
1.1 jfb 46:
47:
48: /* RCS token types */
1.57 xsa 49: #define RCS_TOK_ERR -1
50: #define RCS_TOK_EOF 0
51: #define RCS_TOK_NUM 1
52: #define RCS_TOK_ID 2
53: #define RCS_TOK_STRING 3
54: #define RCS_TOK_SCOLON 4
55: #define RCS_TOK_COLON 5
56:
57:
58: #define RCS_TOK_HEAD 8
59: #define RCS_TOK_BRANCH 9
60: #define RCS_TOK_ACCESS 10
61: #define RCS_TOK_SYMBOLS 11
62: #define RCS_TOK_LOCKS 12
63: #define RCS_TOK_COMMENT 13
64: #define RCS_TOK_EXPAND 14
65: #define RCS_TOK_DATE 15
66: #define RCS_TOK_AUTHOR 16
67: #define RCS_TOK_STATE 17
68: #define RCS_TOK_NEXT 18
69: #define RCS_TOK_BRANCHES 19
70: #define RCS_TOK_DESC 20
71: #define RCS_TOK_LOG 21
72: #define RCS_TOK_TEXT 22
73: #define RCS_TOK_STRICT 23
1.1 jfb 74:
1.57 xsa 75: #define RCS_ISKEY(t) (((t) >= RCS_TOK_HEAD) && ((t) <= RCS_TOK_BRANCHES))
1.1 jfb 76:
77:
1.57 xsa 78: #define RCS_NOSCOL 0x01 /* no terminating semi-colon */
79: #define RCS_VOPT 0x02 /* value is optional */
1.1 jfb 80:
81:
82: /* opaque parse data */
83: struct rcs_pdata {
1.57 xsa 84: u_int rp_lines;
1.1 jfb 85:
1.57 xsa 86: char *rp_buf;
87: size_t rp_blen;
88: char *rp_bufend;
89: size_t rp_tlen;
1.1 jfb 90:
91: /* pushback token buffer */
1.57 xsa 92: char rp_ptok[128];
93: int rp_pttype; /* token type, RCS_TOK_ERR if no token */
1.1 jfb 94:
1.57 xsa 95: FILE *rp_file;
1.1 jfb 96: };
97:
98:
99: struct rcs_line {
1.57 xsa 100: char *rl_line;
101: int rl_lineno;
102: TAILQ_ENTRY(rcs_line) rl_list;
1.1 jfb 103: };
1.5 vincent 104: TAILQ_HEAD(rcs_tqh, rcs_line);
1.1 jfb 105:
106: struct rcs_foo {
1.57 xsa 107: int rl_nblines;
108: char *rl_data;
109: struct rcs_tqh rl_lines;
1.1 jfb 110: };
111:
1.57 xsa 112: #define RCS_TOKSTR(rfp) ((struct rcs_pdata *)rfp->rf_pdata)->rp_buf
113: #define RCS_TOKLEN(rfp) ((struct rcs_pdata *)rfp->rf_pdata)->rp_tlen
1.1 jfb 114:
115:
1.47 jfb 116:
117: /* invalid characters in RCS symbol names */
1.49 jfb 118: static const char rcs_sym_invch[] = RCS_SYM_INVALCHAR;
1.47 jfb 119:
1.51 jfb 120:
121: /* comment leaders, depending on the file's suffix */
122: static const struct rcs_comment {
1.57 xsa 123: const char *rc_suffix;
124: const char *rc_cstr;
1.51 jfb 125: } rcs_comments[] = {
126: { "1", ".\\\" " },
127: { "2", ".\\\" " },
128: { "3", ".\\\" " },
129: { "4", ".\\\" " },
130: { "5", ".\\\" " },
131: { "6", ".\\\" " },
132: { "7", ".\\\" " },
133: { "8", ".\\\" " },
134: { "9", ".\\\" " },
135: { "a", "-- " }, /* Ada */
136: { "ada", "-- " },
137: { "adb", "-- " },
138: { "asm", ";; " }, /* assembler (MS-DOS) */
139: { "ads", "-- " }, /* Ada */
140: { "bat", ":: " }, /* batch (MS-DOS) */
141: { "body", "-- " }, /* Ada */
142: { "c", " * " }, /* C */
143: { "c++", "// " }, /* C++ */
144: { "cc", "// " },
145: { "cpp", "// " },
146: { "cxx", "// " },
147: { "m", "// " }, /* Objective-C */
148: { "cl", ";;; " }, /* Common Lisp */
149: { "cmd", ":: " }, /* command (OS/2) */
150: { "cmf", "c " }, /* CM Fortran */
151: { "csh", "# " }, /* shell */
152: { "e", "# " }, /* efl */
153: { "epsf", "% " }, /* encapsulated postscript */
154: { "epsi", "% " }, /* encapsulated postscript */
155: { "el", "; " }, /* Emacs Lisp */
156: { "f", "c " }, /* Fortran */
157: { "for", "c " },
158: { "h", " * " }, /* C-header */
159: { "hh", "// " }, /* C++ header */
160: { "hpp", "// " },
161: { "hxx", "// " },
162: { "in", "# " }, /* for Makefile.in */
163: { "l", " * " }, /* lex */
164: { "mac", ";; " }, /* macro (DEC-10, MS-DOS, PDP-11, VMS, etc) */
165: { "mak", "# " }, /* makefile, e.g. Visual C++ */
166: { "me", ".\\\" " }, /* me-macros t/nroff */
167: { "ml", "; " }, /* mocklisp */
168: { "mm", ".\\\" " }, /* mm-macros t/nroff */
169: { "ms", ".\\\" " }, /* ms-macros t/nroff */
170: { "man", ".\\\" " }, /* man-macros t/nroff */
171: { "p", " * " }, /* pascal */
172: { "pas", " * " },
1.52 jfb 173: { "pl", "# " }, /* Perl (conflict with Prolog) */
174: { "pm", "# " }, /* Perl module */
1.51 jfb 175: { "ps", "% " }, /* postscript */
176: { "psw", "% " }, /* postscript wrap */
177: { "pswm", "% " }, /* postscript wrap */
178: { "r", "# " }, /* ratfor */
179: { "rc", " * " }, /* Microsoft Windows resource file */
180: { "red", "% " }, /* psl/rlisp */
181: { "sh", "# " }, /* shell */
182: { "sl", "% " }, /* psl */
183: { "spec", "-- " }, /* Ada */
184: { "tex", "% " }, /* tex */
185: { "y", " * " }, /* yacc */
186: { "ye", " * " }, /* yacc-efl */
187: { "yr", " * " }, /* yacc-ratfor */
188: };
189:
1.57 xsa 190: #define NB_COMTYPES (sizeof(rcs_comments)/sizeof(rcs_comments[0]))
1.51 jfb 191:
1.33 jfb 192: #ifdef notyet
1.20 jfb 193: static struct rcs_kfl {
1.57 xsa 194: char rk_char;
195: int rk_val;
1.20 jfb 196: } rcs_kflags[] = {
197: { 'k', RCS_KWEXP_NAME },
198: { 'v', RCS_KWEXP_VAL },
199: { 'l', RCS_KWEXP_LKR },
200: { 'o', RCS_KWEXP_OLD },
201: { 'b', RCS_KWEXP_NONE },
202: };
1.33 jfb 203: #endif
1.20 jfb 204:
1.1 jfb 205: static struct rcs_key {
1.57 xsa 206: char rk_str[16];
207: int rk_id;
208: int rk_val;
209: int rk_flags;
1.1 jfb 210: } rcs_keys[] = {
211: { "access", RCS_TOK_ACCESS, RCS_TOK_ID, RCS_VOPT },
1.41 jfb 212: { "author", RCS_TOK_AUTHOR, RCS_TOK_ID, 0 },
1.1 jfb 213: { "branch", RCS_TOK_BRANCH, RCS_TOK_NUM, RCS_VOPT },
214: { "branches", RCS_TOK_BRANCHES, RCS_TOK_NUM, RCS_VOPT },
215: { "comment", RCS_TOK_COMMENT, RCS_TOK_STRING, RCS_VOPT },
216: { "date", RCS_TOK_DATE, RCS_TOK_NUM, 0 },
217: { "desc", RCS_TOK_DESC, RCS_TOK_STRING, RCS_NOSCOL },
218: { "expand", RCS_TOK_EXPAND, RCS_TOK_STRING, RCS_VOPT },
219: { "head", RCS_TOK_HEAD, RCS_TOK_NUM, RCS_VOPT },
220: { "locks", RCS_TOK_LOCKS, RCS_TOK_ID, 0 },
221: { "log", RCS_TOK_LOG, RCS_TOK_STRING, RCS_NOSCOL },
222: { "next", RCS_TOK_NEXT, RCS_TOK_NUM, RCS_VOPT },
1.41 jfb 223: { "state", RCS_TOK_STATE, RCS_TOK_ID, RCS_VOPT },
1.1 jfb 224: { "strict", RCS_TOK_STRICT, 0, 0, },
225: { "symbols", RCS_TOK_SYMBOLS, 0, 0 },
226: { "text", RCS_TOK_TEXT, RCS_TOK_STRING, RCS_NOSCOL },
227: };
228:
1.57 xsa 229: #define RCS_NKEYS (sizeof(rcs_keys)/sizeof(rcs_keys[0]))
1.1 jfb 230:
1.33 jfb 231: /*
232: * Keyword expansion table
233: */
1.63 joris 234: #define RCS_KW_AUTHOR 0x1000
235: #define RCS_KW_DATE 0x2000
236: #define RCS_KW_LOG 0x4000
237: #define RCS_KW_NAME 0x8000
238: #define RCS_KW_RCSFILE 0x0100
239: #define RCS_KW_REVISION 0x0200
240: #define RCS_KW_SOURCE 0x0400
241: #define RCS_KW_STATE 0x0800
242: #define RCS_KW_FULLPATH 0x0010
243:
244: #define RCS_KW_ID \
245: (RCS_KW_RCSFILE | RCS_KW_REVISION | RCS_KW_DATE \
246: | RCS_KW_AUTHOR | RCS_KW_STATE)
247:
248: #define RCS_KW_HEADER (RCS_KW_ID | RCS_KW_FULLPATH)
249:
1.33 jfb 250: static struct rcs_kw {
1.57 xsa 251: char kw_str[16];
1.63 joris 252: int kw_type;
1.33 jfb 253: } rcs_expkw[] = {
1.63 joris 254: { "Author", RCS_KW_AUTHOR },
255: { "Date", RCS_KW_DATE },
256: { "Header", RCS_KW_HEADER },
257: { "Id", RCS_KW_ID },
258: { "Log", RCS_KW_LOG },
259: { "Name", RCS_KW_NAME },
260: { "RCSfile", RCS_KW_RCSFILE },
261: { "Revision", RCS_KW_REVISION },
262: { "Source", RCS_KW_SOURCE },
263: { "State", RCS_KW_STATE },
1.33 jfb 264: };
1.63 joris 265:
266: #define RCS_NKWORDS (sizeof(rcs_expkw)/sizeof(rcs_expkw[0]))
1.33 jfb 267:
1.32 jfb 268: static const char *rcs_errstrs[] = {
269: "No error",
270: "No such entry",
271: "Duplicate entry found",
272: "Bad RCS number",
1.48 jfb 273: "Invalid RCS symbol",
274: "Parse error",
1.32 jfb 275: };
276:
277: #define RCS_NERR (sizeof(rcs_errstrs)/sizeof(rcs_errstrs[0]))
278:
279:
280: int rcs_errno = RCS_ERR_NOERR;
281:
1.1 jfb 282:
1.57 xsa 283: static int rcs_write(RCSFILE *);
284: static int rcs_parse(RCSFILE *);
285: static int rcs_parse_admin(RCSFILE *);
286: static int rcs_parse_delta(RCSFILE *);
287: static int rcs_parse_deltatext(RCSFILE *);
288:
289: static int rcs_parse_access(RCSFILE *);
290: static int rcs_parse_symbols(RCSFILE *);
291: static int rcs_parse_locks(RCSFILE *);
292: static int rcs_parse_branches(RCSFILE *, struct rcs_delta *);
293: static void rcs_freedelta(struct rcs_delta *);
294: static void rcs_freepdata(struct rcs_pdata *);
295: static int rcs_gettok(RCSFILE *);
296: static int rcs_pushtok(RCSFILE *, const char *, int);
297: static int rcs_growbuf(RCSFILE *);
298: static int rcs_patch_lines(struct rcs_foo *, struct rcs_foo *);
299: static int rcs_strprint(const u_char *, size_t, FILE *);
300:
1.63 joris 301: static int rcs_expand_keywords(char *, struct rcs_delta *, char *, char *,
302: size_t, int);
1.57 xsa 303: static struct rcs_delta *rcs_findrev(RCSFILE *, const RCSNUM *);
304: static struct rcs_foo *rcs_splitlines(const char *);
305: static void rcs_freefoo(struct rcs_foo *);
1.26 jfb 306:
1.1 jfb 307: /*
308: * rcs_open()
309: *
310: * Open a file containing RCS-formatted information. The file's path is
1.26 jfb 311: * given in <path>, and the opening flags are given in <flags>, which is either
312: * RCS_READ, RCS_WRITE, or RCS_RDWR. If the open requests write access and
313: * the file does not exist, the RCS_CREATE flag must also be given, in which
314: * case it will be created with the mode specified in a third argument of
315: * type mode_t. If the file exists and RCS_CREATE is passed, the open will
316: * fail.
1.1 jfb 317: * Returns a handle to the opened file on success, or NULL on failure.
318: */
1.60 xsa 319: RCSFILE *
1.26 jfb 320: rcs_open(const char *path, int flags, ...)
1.1 jfb 321: {
1.26 jfb 322: int ret;
323: mode_t fmode;
1.1 jfb 324: RCSFILE *rfp;
325: struct stat st;
1.26 jfb 326: va_list vap;
327:
328: fmode = 0;
329: flags &= 0xffff; /* ditch any internal flags */
1.1 jfb 330:
1.26 jfb 331: if (((ret = stat(path, &st)) == -1) && (errno == ENOENT)) {
332: if (flags & RCS_CREATE) {
333: va_start(vap, flags);
334: fmode = va_arg(vap, mode_t);
335: va_end(vap);
336: } else {
1.50 jfb 337: rcs_errno = RCS_ERR_ERRNO;
1.26 jfb 338: cvs_log(LP_ERR, "RCS file `%s' does not exist", path);
339: return (NULL);
340: }
341: } else if ((ret == 0) && (flags & RCS_CREATE)) {
342: cvs_log(LP_ERR, "RCS file `%s' exists", path);
1.1 jfb 343: return (NULL);
344: }
345:
1.26 jfb 346: if ((rfp = (RCSFILE *)malloc(sizeof(*rfp))) == NULL) {
1.1 jfb 347: cvs_log(LP_ERRNO, "failed to allocate RCS file structure");
1.50 jfb 348: rcs_errno = RCS_ERR_ERRNO;
1.1 jfb 349: return (NULL);
350: }
351: memset(rfp, 0, sizeof(*rfp));
352:
1.26 jfb 353: if ((rfp->rf_path = strdup(path)) == NULL) {
1.50 jfb 354: rcs_errno = RCS_ERR_ERRNO;
1.1 jfb 355: cvs_log(LP_ERRNO, "failed to duplicate RCS file path");
1.26 jfb 356: free(rfp);
1.1 jfb 357: return (NULL);
358: }
359:
360: rfp->rf_ref = 1;
1.26 jfb 361: rfp->rf_flags = flags | RCS_SLOCK;
362: rfp->rf_mode = fmode;
1.1 jfb 363:
364: TAILQ_INIT(&(rfp->rf_delta));
1.29 jfb 365: TAILQ_INIT(&(rfp->rf_access));
1.1 jfb 366: TAILQ_INIT(&(rfp->rf_symbols));
367: TAILQ_INIT(&(rfp->rf_locks));
368:
1.26 jfb 369: if (rfp->rf_flags & RCS_CREATE) {
370: } else if (rcs_parse(rfp) < 0) {
1.1 jfb 371: rcs_close(rfp);
372: return (NULL);
373: }
374:
375: return (rfp);
376: }
377:
378: /*
379: * rcs_close()
380: *
381: * Close an RCS file handle.
382: */
383: void
384: rcs_close(RCSFILE *rfp)
385: {
386: struct rcs_delta *rdp;
1.13 jfb 387: struct rcs_lock *rlp;
388: struct rcs_sym *rsp;
1.1 jfb 389:
390: if (rfp->rf_ref > 1) {
391: rfp->rf_ref--;
392: return;
393: }
394:
1.26 jfb 395: if ((rfp->rf_flags & RCS_WRITE) && !(rfp->rf_flags & RCS_SYNCED))
396: rcs_write(rfp);
397:
1.1 jfb 398: while (!TAILQ_EMPTY(&(rfp->rf_delta))) {
399: rdp = TAILQ_FIRST(&(rfp->rf_delta));
400: TAILQ_REMOVE(&(rfp->rf_delta), rdp, rd_list);
401: rcs_freedelta(rdp);
402: }
403:
1.13 jfb 404: while (!TAILQ_EMPTY(&(rfp->rf_symbols))) {
405: rsp = TAILQ_FIRST(&(rfp->rf_symbols));
406: TAILQ_REMOVE(&(rfp->rf_symbols), rsp, rs_list);
407: rcsnum_free(rsp->rs_num);
1.39 joris 408: cvs_strfree(rsp->rs_name);
1.13 jfb 409: free(rsp);
410: }
411:
412: while (!TAILQ_EMPTY(&(rfp->rf_locks))) {
413: rlp = TAILQ_FIRST(&(rfp->rf_locks));
414: TAILQ_REMOVE(&(rfp->rf_locks), rlp, rl_list);
415: rcsnum_free(rlp->rl_num);
416: free(rlp);
417: }
418:
1.1 jfb 419: if (rfp->rf_head != NULL)
420: rcsnum_free(rfp->rf_head);
1.11 joris 421: if (rfp->rf_branch != NULL)
422: rcsnum_free(rfp->rf_branch);
1.1 jfb 423:
424: if (rfp->rf_path != NULL)
425: free(rfp->rf_path);
426: if (rfp->rf_comment != NULL)
1.39 joris 427: cvs_strfree(rfp->rf_comment);
1.1 jfb 428: if (rfp->rf_expand != NULL)
1.39 joris 429: cvs_strfree(rfp->rf_expand);
1.1 jfb 430: if (rfp->rf_desc != NULL)
1.39 joris 431: cvs_strfree(rfp->rf_desc);
1.1 jfb 432: free(rfp);
433: }
434:
435: /*
436: * rcs_write()
437: *
438: * Write the contents of the RCS file handle <rfp> to disk in the file whose
439: * path is in <rf_path>.
440: * Returns 0 on success, or -1 on failure.
441: */
1.27 jfb 442: static int
1.1 jfb 443: rcs_write(RCSFILE *rfp)
444: {
445: FILE *fp;
1.42 jfb 446: char buf[1024], numbuf[64];
1.29 jfb 447: struct rcs_access *ap;
1.1 jfb 448: struct rcs_sym *symp;
1.46 jfb 449: struct rcs_branch *brp;
1.1 jfb 450: struct rcs_delta *rdp;
451:
1.28 jfb 452: if (rfp->rf_flags & RCS_SYNCED)
1.1 jfb 453: return (0);
454:
1.29 jfb 455: if ((fp = fopen(rfp->rf_path, "w")) == NULL) {
1.50 jfb 456: rcs_errno = RCS_ERR_ERRNO;
1.1 jfb 457: cvs_log(LP_ERRNO, "failed to open RCS output file `%s'",
458: rfp->rf_path);
459: return (-1);
460: }
461:
1.28 jfb 462: if (rfp->rf_head != NULL)
463: rcsnum_tostr(rfp->rf_head, numbuf, sizeof(numbuf));
464: else
465: numbuf[0] = '\0';
466:
1.1 jfb 467: fprintf(fp, "head\t%s;\n", numbuf);
1.35 jfb 468:
469: if (rfp->rf_branch != NULL) {
470: rcsnum_tostr(rfp->rf_branch, numbuf, sizeof(numbuf));
471: fprintf(fp, "branch\t%s;\n", numbuf);
472: }
473:
1.29 jfb 474: fputs("access", fp);
475: TAILQ_FOREACH(ap, &(rfp->rf_access), ra_list) {
476: fprintf(fp, "\n\t%s", ap->ra_name);
477: }
478: fputs(";\n", fp);
1.1 jfb 479:
480: fprintf(fp, "symbols\n");
481: TAILQ_FOREACH(symp, &(rfp->rf_symbols), rs_list) {
482: rcsnum_tostr(symp->rs_num, numbuf, sizeof(numbuf));
483: snprintf(buf, sizeof(buf), "%s:%s", symp->rs_name, numbuf);
484: fprintf(fp, "\t%s", buf);
485: if (symp != TAILQ_LAST(&(rfp->rf_symbols), rcs_slist))
486: fputc('\n', fp);
487: }
488: fprintf(fp, ";\n");
489:
490: fprintf(fp, "locks;");
491:
1.26 jfb 492: if (rfp->rf_flags & RCS_SLOCK)
1.1 jfb 493: fprintf(fp, " strict;");
494: fputc('\n', fp);
495:
1.42 jfb 496: if (rfp->rf_comment != NULL) {
497: fputs("comment\t@", fp);
1.58 xsa 498: rcs_strprint((const u_char *)rfp->rf_comment,
499: strlen(rfp->rf_comment), fp);
1.42 jfb 500: fputs("@;\n", fp);
501: }
1.1 jfb 502:
1.42 jfb 503: if (rfp->rf_expand != NULL) {
504: fputs("expand @", fp);
1.58 xsa 505: rcs_strprint((const u_char *)rfp->rf_expand,
506: strlen(rfp->rf_expand), fp);
1.42 jfb 507: fputs("@;\n", fp);
508: }
1.1 jfb 509:
1.46 jfb 510: fputs("\n\n", fp);
1.1 jfb 511:
512: TAILQ_FOREACH(rdp, &(rfp->rf_delta), rd_list) {
513: fprintf(fp, "%s\n", rcsnum_tostr(rdp->rd_num, numbuf,
514: sizeof(numbuf)));
515: fprintf(fp, "date\t%d.%02d.%02d.%02d.%02d.%02d;",
1.44 jfb 516: rdp->rd_date.tm_year + 1900, rdp->rd_date.tm_mon + 1,
1.1 jfb 517: rdp->rd_date.tm_mday, rdp->rd_date.tm_hour,
518: rdp->rd_date.tm_min, rdp->rd_date.tm_sec);
519: fprintf(fp, "\tauthor %s;\tstate %s;\n",
520: rdp->rd_author, rdp->rd_state);
1.46 jfb 521: fputs("branches", fp);
522: TAILQ_FOREACH(brp, &(rdp->rd_branches), rb_list) {
523: fprintf(fp, " %s", rcsnum_tostr(brp->rb_num, numbuf,
524: sizeof(numbuf)));
525: }
526: fputs(";\n", fp);
1.1 jfb 527: fprintf(fp, "next\t%s;\n\n", rcsnum_tostr(rdp->rd_next,
528: numbuf, sizeof(numbuf)));
529: }
530:
1.42 jfb 531: fputs("\ndesc\n@", fp);
532: if (rfp->rf_desc != NULL)
1.58 xsa 533: rcs_strprint((const u_char *)rfp->rf_desc,
534: strlen(rfp->rf_desc), fp);
1.42 jfb 535: fputs("@\n\n", fp);
1.1 jfb 536:
537: /* deltatexts */
538: TAILQ_FOREACH(rdp, &(rfp->rf_delta), rd_list) {
539: fprintf(fp, "\n%s\n", rcsnum_tostr(rdp->rd_num, numbuf,
540: sizeof(numbuf)));
1.42 jfb 541: fputs("log\n@", fp);
1.58 xsa 542: rcs_strprint((const u_char *)rdp->rd_log,
543: strlen(rdp->rd_log), fp);
1.42 jfb 544: fputs("@\ntext\n@", fp);
545: rcs_strprint(rdp->rd_text, rdp->rd_tlen, fp);
546: fputs("@\n\n", fp);
1.1 jfb 547: }
548: fclose(fp);
549:
1.26 jfb 550: rfp->rf_flags |= RCS_SYNCED;
1.1 jfb 551:
552: return (0);
553: }
554:
555: /*
1.43 jfb 556: * rcs_head_get()
557: *
558: * Retrieve the revision number of the head revision for the RCS file <file>.
559: */
1.60 xsa 560: const RCSNUM *
1.43 jfb 561: rcs_head_get(RCSFILE *file)
562: {
563: return (file->rf_head);
564: }
565:
566: /*
567: * rcs_head_set()
568: *
569: * Set the revision number of the head revision for the RCS file <file> to
570: * <rev>, which must reference a valid revision within the file.
571: */
572: int
573: rcs_head_set(RCSFILE *file, const RCSNUM *rev)
574: {
575: struct rcs_delta *rd;
576:
577: if ((rd = rcs_findrev(file, rev)) == NULL)
578: return (-1);
579:
1.52 jfb 580: if ((file->rf_head == NULL) &&
581: ((file->rf_head = rcsnum_alloc()) == NULL))
582: return (-1);
583:
1.43 jfb 584: if (rcsnum_cpy(rev, file->rf_head, 0) < 0)
585: return (-1);
586:
587: return (0);
588: }
589:
590:
591: /*
1.35 jfb 592: * rcs_branch_get()
593: *
594: * Retrieve the default branch number for the RCS file <file>.
595: * Returns the number on success. If NULL is returned, then there is no
596: * default branch for this file.
597: */
1.60 xsa 598: const RCSNUM *
1.35 jfb 599: rcs_branch_get(RCSFILE *file)
600: {
601: return (file->rf_branch);
602: }
603:
604: /*
605: * rcs_branch_set()
606: *
607: * Set the default branch for the RCS file <file> to <bnum>.
608: * Returns 0 on success, -1 on failure.
609: */
610: int
611: rcs_branch_set(RCSFILE *file, const RCSNUM *bnum)
612: {
613: if ((file->rf_branch == NULL) &&
614: ((file->rf_branch = rcsnum_alloc()) == NULL))
615: return (-1);
616:
617: if (rcsnum_cpy(bnum, file->rf_branch, 0) < 0) {
618: rcsnum_free(file->rf_branch);
619: file->rf_branch = NULL;
620: return (-1);
621: }
622:
623: return (0);
624: }
625:
626: /*
1.29 jfb 627: * rcs_access_add()
628: *
629: * Add the login name <login> to the access list for the RCS file <file>.
630: * Returns 0 on success, or -1 on failure.
631: */
632: int
633: rcs_access_add(RCSFILE *file, const char *login)
634: {
635: struct rcs_access *ap;
636:
637: /* first look for duplication */
638: TAILQ_FOREACH(ap, &(file->rf_access), ra_list) {
639: if (strcmp(ap->ra_name, login) == 0) {
1.32 jfb 640: rcs_errno = RCS_ERR_DUPENT;
1.29 jfb 641: return (-1);
642: }
643: }
644:
645: ap = (struct rcs_access *)malloc(sizeof(*ap));
646: if (ap == NULL) {
1.50 jfb 647: rcs_errno = RCS_ERR_ERRNO;
1.29 jfb 648: cvs_log(LP_ERRNO, "failed to allocate RCS access entry");
649: return (-1);
650: }
651:
1.39 joris 652: ap->ra_name = cvs_strdup(login);
1.29 jfb 653: if (ap->ra_name == NULL) {
654: cvs_log(LP_ERRNO, "failed to duplicate user name");
655: free(ap);
656: return (-1);
657: }
658:
659: TAILQ_INSERT_TAIL(&(file->rf_access), ap, ra_list);
660:
661: /* not synced anymore */
662: file->rf_flags &= ~RCS_SYNCED;
663: return (0);
664: }
665:
666: /*
667: * rcs_access_remove()
668: *
669: * Remove an entry with login name <login> from the access list of the RCS
670: * file <file>.
671: * Returns 0 on success, or -1 on failure.
672: */
673: int
674: rcs_access_remove(RCSFILE *file, const char *login)
675: {
676: struct rcs_access *ap;
677:
678: TAILQ_FOREACH(ap, &(file->rf_access), ra_list)
679: if (strcmp(ap->ra_name, login) == 0)
680: break;
681:
682: if (ap == NULL) {
1.32 jfb 683: rcs_errno = RCS_ERR_NOENT;
1.29 jfb 684: return (-1);
685: }
686:
687: TAILQ_REMOVE(&(file->rf_access), ap, ra_list);
1.39 joris 688: cvs_strfree(ap->ra_name);
1.29 jfb 689: free(ap);
690:
691: /* not synced anymore */
692: file->rf_flags &= ~RCS_SYNCED;
693: return (0);
694: }
695:
696: /*
1.26 jfb 697: * rcs_sym_add()
1.1 jfb 698: *
699: * Add a symbol to the list of symbols for the RCS file <rfp>. The new symbol
700: * is named <sym> and is bound to the RCS revision <snum>.
701: * Returns 0 on success, or -1 on failure.
702: */
703: int
1.26 jfb 704: rcs_sym_add(RCSFILE *rfp, const char *sym, RCSNUM *snum)
1.1 jfb 705: {
706: struct rcs_sym *symp;
707:
1.47 jfb 708: if (!rcs_sym_check(sym)) {
709: rcs_errno = RCS_ERR_BADSYM;
710: return (NULL);
711: }
712:
1.1 jfb 713: /* first look for duplication */
714: TAILQ_FOREACH(symp, &(rfp->rf_symbols), rs_list) {
715: if (strcmp(symp->rs_name, sym) == 0) {
1.32 jfb 716: rcs_errno = RCS_ERR_DUPENT;
1.1 jfb 717: return (-1);
718: }
719: }
720:
1.50 jfb 721: if ((symp = (struct rcs_sym *)malloc(sizeof(*symp))) == NULL) {
722: rcs_errno = RCS_ERR_ERRNO;
1.1 jfb 723: cvs_log(LP_ERRNO, "failed to allocate RCS symbol");
724: return (-1);
725: }
726:
1.50 jfb 727: if ((symp->rs_name = cvs_strdup(sym)) == NULL) {
728: rcs_errno = RCS_ERR_ERRNO;
1.10 joris 729: cvs_log(LP_ERRNO, "failed to duplicate symbol");
730: free(symp);
731: return (-1);
732: }
733:
1.50 jfb 734: if ((symp->rs_num = rcsnum_alloc()) == NULL) {
1.39 joris 735: cvs_strfree(symp->rs_name);
1.11 joris 736: free(symp);
737: return (-1);
738: }
1.1 jfb 739: rcsnum_cpy(snum, symp->rs_num, 0);
740:
741: TAILQ_INSERT_HEAD(&(rfp->rf_symbols), symp, rs_list);
742:
743: /* not synced anymore */
1.26 jfb 744: rfp->rf_flags &= ~RCS_SYNCED;
1.1 jfb 745: return (0);
746: }
747:
748: /*
1.27 jfb 749: * rcs_sym_remove()
750: *
751: * Remove the symbol with name <sym> from the symbol list for the RCS file
752: * <file>. If no such symbol is found, the call fails and returns with an
753: * error.
754: * Returns 0 on success, or -1 on failure.
755: */
756: int
757: rcs_sym_remove(RCSFILE *file, const char *sym)
758: {
759: struct rcs_sym *symp;
760:
1.47 jfb 761: if (!rcs_sym_check(sym)) {
762: rcs_errno = RCS_ERR_BADSYM;
763: return (NULL);
764: }
765:
1.27 jfb 766: TAILQ_FOREACH(symp, &(file->rf_symbols), rs_list)
767: if (strcmp(symp->rs_name, sym) == 0)
768: break;
769:
770: if (symp == NULL) {
1.32 jfb 771: rcs_errno = RCS_ERR_NOENT;
1.27 jfb 772: return (-1);
773: }
774:
775: TAILQ_REMOVE(&(file->rf_symbols), symp, rs_list);
1.39 joris 776: cvs_strfree(symp->rs_name);
1.27 jfb 777: rcsnum_free(symp->rs_num);
778: free(symp);
779:
780: /* not synced anymore */
781: file->rf_flags &= ~RCS_SYNCED;
782: return (0);
783: }
784:
785: /*
786: * rcs_sym_getrev()
787: *
788: * Retrieve the RCS revision number associated with the symbol <sym> for the
789: * RCS file <file>. The returned value is a dynamically-allocated copy and
790: * should be freed by the caller once they are done with it.
791: * Returns the RCSNUM on success, or NULL on failure.
792: */
1.60 xsa 793: RCSNUM *
1.27 jfb 794: rcs_sym_getrev(RCSFILE *file, const char *sym)
795: {
796: RCSNUM *num;
797: struct rcs_sym *symp;
798:
1.47 jfb 799: if (!rcs_sym_check(sym)) {
800: rcs_errno = RCS_ERR_BADSYM;
801: return (NULL);
802: }
803:
1.27 jfb 804: num = NULL;
805: TAILQ_FOREACH(symp, &(file->rf_symbols), rs_list)
806: if (strcmp(symp->rs_name, sym) == 0)
807: break;
808:
1.36 jfb 809: if (symp == NULL)
810: rcs_errno = RCS_ERR_NOENT;
811: else if (((num = rcsnum_alloc()) != NULL) &&
1.27 jfb 812: (rcsnum_cpy(symp->rs_num, num, 0) < 0)) {
813: rcsnum_free(num);
814: num = NULL;
815: }
816:
817: return (num);
1.47 jfb 818: }
819:
820: /*
821: * rcs_sym_check()
822: *
823: * Check the RCS symbol name <sym> for any unsupported characters.
824: * Returns 1 if the tag is correct, 0 if it isn't valid.
825: */
826: int
827: rcs_sym_check(const char *sym)
828: {
829: int ret;
830: const char *cp;
831:
832: ret = 1;
833: cp = sym;
834: if (!isalpha(*cp++))
835: return (0);
836:
837: for (; *cp != '\0'; cp++)
838: if (!isgraph(*cp) || (strchr(rcs_sym_invch, *cp) != NULL)) {
839: ret = 0;
840: break;
841: }
842:
843: return (ret);
1.30 jfb 844: }
845:
846: /*
847: * rcs_lock_getmode()
848: *
849: * Retrieve the locking mode of the RCS file <file>.
850: */
851: int
852: rcs_lock_getmode(RCSFILE *file)
853: {
854: return (file->rf_flags & RCS_SLOCK) ? RCS_LOCK_STRICT : RCS_LOCK_LOOSE;
855: }
856:
857: /*
858: * rcs_lock_setmode()
859: *
860: * Set the locking mode of the RCS file <file> to <mode>, which must either
861: * be RCS_LOCK_LOOSE or RCS_LOCK_STRICT.
862: * Returns the previous mode on success, or -1 on failure.
863: */
864: int
865: rcs_lock_setmode(RCSFILE *file, int mode)
866: {
867: int pmode;
868: pmode = rcs_lock_getmode(file);
869:
870: if (mode == RCS_LOCK_STRICT)
871: file->rf_flags |= RCS_SLOCK;
872: else if (mode == RCS_LOCK_LOOSE)
873: file->rf_flags &= ~RCS_SLOCK;
874: else {
875: cvs_log(LP_ERRNO, "invalid lock mode %d", mode);
876: return (-1);
877: }
878:
879: return (pmode);
1.27 jfb 880: }
881:
882: /*
1.40 jfb 883: * rcs_lock_add()
884: *
885: * Add an RCS lock for the user <user> on revision <rev>.
886: * Returns 0 on success, or -1 on failure.
887: */
888: int
889: rcs_lock_add(RCSFILE *file, const char *user, RCSNUM *rev)
890: {
891: struct rcs_lock *lkp;
892:
893: /* first look for duplication */
894: TAILQ_FOREACH(lkp, &(file->rf_locks), rl_list) {
895: if (strcmp(lkp->rl_name, user) == 0) {
896: rcs_errno = RCS_ERR_DUPENT;
897: return (-1);
898: }
899: }
900:
1.50 jfb 901: if ((lkp = (struct rcs_lock *)malloc(sizeof(*lkp))) == NULL) {
902: rcs_errno = RCS_ERR_ERRNO;
1.40 jfb 903: cvs_log(LP_ERRNO, "failed to allocate RCS lock");
904: return (-1);
905: }
906:
907: lkp->rl_name = cvs_strdup(user);
908: if (lkp->rl_name == NULL) {
909: cvs_log(LP_ERRNO, "failed to duplicate user name");
910: free(lkp);
911: return (-1);
912: }
913:
914: TAILQ_INSERT_TAIL(&(file->rf_locks), lkp, rl_list);
915:
916: /* not synced anymore */
917: file->rf_flags &= ~RCS_SYNCED;
918: return (0);
919:
920:
921: }
922:
923:
924: /*
925: * rcs_lock_remove()
926: *
927: * Remove the RCS lock on revision <rev>.
928: * Returns 0 on success, or -1 on failure.
929: */
930: int
1.56 joris 931: rcs_lock_remove(RCSFILE *file, const RCSNUM *rev)
1.40 jfb 932: {
933: struct rcs_lock *lkp;
934:
935: TAILQ_FOREACH(lkp, &(file->rf_locks), rl_list)
936: if (rcsnum_cmp(lkp->rl_num, rev, 0) == 0)
937: break;
938:
939: if (lkp == NULL) {
940: rcs_errno = RCS_ERR_NOENT;
941: return (-1);
942: }
943:
944: TAILQ_REMOVE(&(file->rf_locks), lkp, rl_list);
945: rcsnum_free(lkp->rl_num);
946: cvs_strfree(lkp->rl_name);
947: free(lkp);
948:
949: /* not synced anymore */
950: file->rf_flags &= ~RCS_SYNCED;
951: return (0);
952: }
953:
954: /*
1.27 jfb 955: * rcs_desc_get()
956: *
957: * Retrieve the description for the RCS file <file>.
958: */
1.57 xsa 959: const char *
1.27 jfb 960: rcs_desc_get(RCSFILE *file)
961: {
962: return (file->rf_desc);
963: }
964:
965: /*
966: * rcs_desc_set()
967: *
968: * Set the description for the RCS file <file>.
969: * Returns 0 on success, or -1 on failure.
970: */
971: int
972: rcs_desc_set(RCSFILE *file, const char *desc)
973: {
974: char *tmp;
975:
1.39 joris 976: if ((tmp = cvs_strdup(desc)) == NULL)
1.27 jfb 977: return (-1);
978:
979: if (file->rf_desc != NULL)
1.39 joris 980: cvs_strfree(file->rf_desc);
1.27 jfb 981: file->rf_desc = tmp;
982: file->rf_flags &= ~RCS_SYNCED;
983:
984: return (0);
1.51 jfb 985: }
986:
987: /*
988: * rcs_comment_lookup()
989: *
990: * Lookup the assumed comment leader based on a file's suffix.
991: * Returns a pointer to the string on success, or NULL on failure.
992: */
1.57 xsa 993: const char *
1.51 jfb 994: rcs_comment_lookup(const char *filename)
995: {
996: int i;
997: const char *sp;
998:
999: if ((sp = strrchr(filename, '.')) == NULL) {
1000: rcs_errno = RCS_ERR_NOENT;
1001: return (NULL);
1002: }
1003: sp++;
1004:
1005: for (i = 0; i < (int)NB_COMTYPES; i++)
1006: if (strcmp(rcs_comments[i].rc_suffix, sp) == 0)
1007: return (rcs_comments[i].rc_cstr);
1008: return (NULL);
1.27 jfb 1009: }
1010:
1.33 jfb 1011: /*
1012: * rcs_comment_get()
1013: *
1014: * Retrieve the comment leader for the RCS file <file>.
1015: */
1.57 xsa 1016: const char *
1.33 jfb 1017: rcs_comment_get(RCSFILE *file)
1018: {
1019: return (file->rf_comment);
1020: }
1021:
1022: /*
1023: * rcs_comment_set()
1024: *
1025: * Set the comment leader for the RCS file <file>.
1026: * Returns 0 on success, or -1 on failure.
1027: */
1028: int
1029: rcs_comment_set(RCSFILE *file, const char *comment)
1030: {
1031: char *tmp;
1032:
1.39 joris 1033: if ((tmp = cvs_strdup(comment)) == NULL)
1.33 jfb 1034: return (-1);
1035:
1036: if (file->rf_comment != NULL)
1.39 joris 1037: cvs_strfree(file->rf_comment);
1.33 jfb 1038: file->rf_comment = tmp;
1039: file->rf_flags &= ~RCS_SYNCED;
1040:
1041: return (0);
1042: }
1.40 jfb 1043:
1044: /*
1045: * rcs_tag_resolve()
1046: *
1047: * Retrieve the revision number corresponding to the tag <tag> for the RCS
1048: * file <file>.
1049: */
1.60 xsa 1050: RCSNUM *
1.40 jfb 1051: rcs_tag_resolve(RCSFILE *file, const char *tag)
1052: {
1053: RCSNUM *num;
1054:
1055: if ((num = rcsnum_parse(tag)) == NULL) {
1056: num = rcs_sym_getrev(file, tag);
1057: }
1058:
1059: return (num);
1060: }
1061:
1.27 jfb 1062:
1063: /*
1.1 jfb 1064: * rcs_patch()
1065: *
1066: * Apply an RCS-format patch pointed to by <patch> to the file contents
1067: * found in <data>.
1068: * Returns 0 on success, or -1 on failure.
1069: */
1070: BUF*
1071: rcs_patch(const char *data, const char *patch)
1072: {
1.5 vincent 1073: struct rcs_foo *dlines, *plines;
1074: struct rcs_line *lp;
1.1 jfb 1075: size_t len;
1.5 vincent 1076: int lineno;
1.1 jfb 1077: BUF *res;
1078:
1079: len = strlen(data);
1080: res = cvs_buf_alloc(len, BUF_AUTOEXT);
1081: if (res == NULL)
1082: return (NULL);
1083:
1084: dlines = rcs_splitlines(data);
1.17 jfb 1085: if (dlines == NULL) {
1086: cvs_buf_free(res);
1.1 jfb 1087: return (NULL);
1.17 jfb 1088: }
1.5 vincent 1089:
1.1 jfb 1090: plines = rcs_splitlines(patch);
1.5 vincent 1091: if (plines == NULL) {
1.17 jfb 1092: cvs_buf_free(res);
1.5 vincent 1093: rcs_freefoo(dlines);
1.1 jfb 1094: return (NULL);
1.5 vincent 1095: }
1096:
1097: if (rcs_patch_lines(dlines, plines) < 0) {
1.17 jfb 1098: cvs_buf_free(res);
1.5 vincent 1099: rcs_freefoo(plines);
1100: rcs_freefoo(dlines);
1101: return (NULL);
1102: }
1103:
1104: lineno = 0;
1105: TAILQ_FOREACH(lp, &dlines->rl_lines, rl_list) {
1106: if (lineno != 0)
1107: cvs_buf_fappend(res, "%s\n", lp->rl_line);
1108: lineno++;
1109: }
1110:
1111: rcs_freefoo(dlines);
1112: rcs_freefoo(plines);
1113: return (res);
1114: }
1115:
1.7 jfb 1116: static int
1.5 vincent 1117: rcs_patch_lines(struct rcs_foo *dlines, struct rcs_foo *plines)
1118: {
1119: char op, *ep;
1120: struct rcs_line *lp, *dlp, *ndlp;
1121: int i, lineno, nbln;
1.1 jfb 1122:
1123: dlp = TAILQ_FIRST(&(dlines->rl_lines));
1124: lp = TAILQ_FIRST(&(plines->rl_lines));
1125:
1126: /* skip first bogus line */
1127: for (lp = TAILQ_NEXT(lp, rl_list); lp != NULL;
1128: lp = TAILQ_NEXT(lp, rl_list)) {
1129: op = *(lp->rl_line);
1130: lineno = (int)strtol((lp->rl_line + 1), &ep, 10);
1131: if ((lineno > dlines->rl_nblines) || (lineno <= 0) ||
1132: (*ep != ' ')) {
1133: cvs_log(LP_ERR,
1134: "invalid line specification in RCS patch");
1.61 joris 1135: return (-1);
1.1 jfb 1136: }
1137: ep++;
1138: nbln = (int)strtol(ep, &ep, 10);
1139: if ((nbln <= 0) || (*ep != '\0')) {
1140: cvs_log(LP_ERR,
1141: "invalid line number specification in RCS patch");
1.61 joris 1142: return (-1);
1.1 jfb 1143: }
1144:
1145: /* find the appropriate line */
1146: for (;;) {
1147: if (dlp == NULL)
1148: break;
1149: if (dlp->rl_lineno == lineno)
1150: break;
1151: if (dlp->rl_lineno > lineno) {
1152: dlp = TAILQ_PREV(dlp, rcs_tqh, rl_list);
1.14 deraadt 1153: } else if (dlp->rl_lineno < lineno) {
1.1 jfb 1154: ndlp = TAILQ_NEXT(dlp, rl_list);
1155: if (ndlp->rl_lineno > lineno)
1156: break;
1157: dlp = ndlp;
1158: }
1159: }
1160: if (dlp == NULL) {
1161: cvs_log(LP_ERR,
1162: "can't find referenced line in RCS patch");
1.61 joris 1163: return (-1);
1.1 jfb 1164: }
1165:
1166: if (op == 'd') {
1167: for (i = 0; (i < nbln) && (dlp != NULL); i++) {
1168: ndlp = TAILQ_NEXT(dlp, rl_list);
1169: TAILQ_REMOVE(&(dlines->rl_lines), dlp, rl_list);
1170: dlp = ndlp;
1171: }
1.14 deraadt 1172: } else if (op == 'a') {
1.1 jfb 1173: for (i = 0; i < nbln; i++) {
1174: ndlp = lp;
1175: lp = TAILQ_NEXT(lp, rl_list);
1176: if (lp == NULL) {
1177: cvs_log(LP_ERR, "truncated RCS patch");
1.5 vincent 1178: return (-1);
1.1 jfb 1179: }
1180: TAILQ_REMOVE(&(plines->rl_lines), lp, rl_list);
1181: TAILQ_INSERT_AFTER(&(dlines->rl_lines), dlp,
1182: lp, rl_list);
1183: dlp = lp;
1184:
1185: /* we don't want lookup to block on those */
1186: lp->rl_lineno = lineno;
1187:
1188: lp = ndlp;
1189: }
1.14 deraadt 1190: } else {
1.1 jfb 1191: cvs_log(LP_ERR, "unknown RCS patch operation `%c'", op);
1.5 vincent 1192: return (-1);
1.1 jfb 1193: }
1194:
1195: /* last line of the patch, done */
1196: if (lp->rl_lineno == plines->rl_nblines)
1197: break;
1198: }
1199:
1200: /* once we're done patching, rebuild the line numbers */
1.2 vincent 1201: lineno = 0;
1.5 vincent 1202: TAILQ_FOREACH(lp, &(dlines->rl_lines), rl_list)
1.1 jfb 1203: lp->rl_lineno = lineno++;
1204: dlines->rl_nblines = lineno - 1;
1205:
1.5 vincent 1206: return (0);
1.1 jfb 1207: }
1208:
1209: /*
1210: * rcs_getrev()
1211: *
1212: * Get the whole contents of revision <rev> from the RCSFILE <rfp>. The
1.4 vincent 1213: * returned buffer is dynamically allocated and should be released using
1214: * cvs_buf_free() once the caller is done using it.
1.1 jfb 1215: */
1216: BUF*
1217: rcs_getrev(RCSFILE *rfp, RCSNUM *rev)
1218: {
1.63 joris 1219: int expmode, res;
1.1 jfb 1220: size_t len;
1221: void *bp;
1222: RCSNUM *crev;
1.63 joris 1223: BUF *rbuf, *dbuf;
1.1 jfb 1224: struct rcs_delta *rdp = NULL;
1.63 joris 1225: struct rcs_foo *lines;
1226: struct rcs_line *lp;
1227: char out[1024]; /* XXX */
1.1 jfb 1228:
1.28 jfb 1229: if (rfp->rf_head == NULL)
1230: return (NULL);
1231:
1.1 jfb 1232: res = rcsnum_cmp(rfp->rf_head, rev, 0);
1233: if (res == 1) {
1.32 jfb 1234: rcs_errno = RCS_ERR_NOENT;
1.1 jfb 1235: return (NULL);
1.26 jfb 1236: }
1237:
1238: rdp = rcs_findrev(rfp, rfp->rf_head);
1239: if (rdp == NULL) {
1240: cvs_log(LP_ERR, "failed to get RCS HEAD revision");
1241: return (NULL);
1242: }
1243:
1.45 jfb 1244: len = rdp->rd_tlen;
1.26 jfb 1245: if ((rbuf = cvs_buf_alloc(len, BUF_AUTOEXT)) == NULL)
1246: return (NULL);
1247:
1248: cvs_buf_append(rbuf, rdp->rd_text, len);
1249:
1250: if (res != 0) {
1251: /* Apply patches backwards to get the right version.
1252: * This will need some rework to support sub branches.
1253: */
1254: if ((crev = rcsnum_alloc()) == NULL) {
1255: cvs_buf_free(rbuf);
1.1 jfb 1256: return (NULL);
1257: }
1.26 jfb 1258: rcsnum_cpy(rfp->rf_head, crev, 0);
1259: do {
1260: crev->rn_id[crev->rn_len - 1]--;
1261: rdp = rcs_findrev(rfp, crev);
1262: if (rdp == NULL) {
1263: rcsnum_free(crev);
1264: cvs_buf_free(rbuf);
1265: return (NULL);
1266: }
1.1 jfb 1267:
1.26 jfb 1268: if (cvs_buf_putc(rbuf, '\0') < 0) {
1269: rcsnum_free(crev);
1.17 jfb 1270: cvs_buf_free(rbuf);
1.11 joris 1271: return (NULL);
1.17 jfb 1272: }
1.26 jfb 1273: bp = cvs_buf_release(rbuf);
1.45 jfb 1274: rbuf = rcs_patch((char *)bp, (char *)rdp->rd_text);
1.62 joris 1275: free(bp);
1.26 jfb 1276: if (rbuf == NULL)
1277: break;
1278: } while (rcsnum_cmp(crev, rev, 0) != 0);
1.1 jfb 1279:
1.26 jfb 1280: rcsnum_free(crev);
1.1 jfb 1281: }
1282:
1.63 joris 1283: /*
1284: * Do keyword expansion if required.
1285: */
1286: if (rfp->rf_expand != NULL)
1287: expmode = rcs_kwexp_get(rfp);
1288: else
1289: expmode = RCS_KWEXP_DEFAULT;
1290:
1291: if ((rbuf != NULL) && !(expmode & RCS_KWEXP_NONE)) {
1292: if ((dbuf = cvs_buf_alloc(len, BUF_AUTOEXT)) == NULL)
1293: return (rbuf);
1294: if ((rdp = rcs_findrev(rfp, rev)) == NULL)
1295: return (rbuf);
1296:
1297: if (cvs_buf_putc(rbuf, '\0') < 0) {
1298: cvs_buf_free(dbuf);
1299: return (rbuf);
1300: }
1301:
1302: bp = cvs_buf_release(rbuf);
1303: if ((lines = rcs_splitlines((char *)bp)) != NULL) {
1304: res = 0;
1305: TAILQ_FOREACH(lp, &lines->rl_lines, rl_list) {
1306: if (res++ == 0)
1307: continue;
1308: rcs_expand_keywords(rfp->rf_path, rdp,
1309: lp->rl_line, out, sizeof(out), expmode);
1310: cvs_buf_fappend(dbuf, "%s\n", out);
1311: }
1312: rcs_freefoo(lines);
1313: }
1314: free(bp);
1315: }
1316:
1317: return (dbuf);
1.1 jfb 1318: }
1319:
1320: /*
1.52 jfb 1321: * rcs_rev_add()
1322: *
1.53 jfb 1323: * Add a revision to the RCS file <rf>. The new revision's number can be
1324: * specified in <rev> (which can also be RCS_HEAD_REV, in which case the
1325: * new revision will have a number equal to the previous head revision plus
1326: * one). The <msg> argument specifies the log message for that revision, and
1327: * <date> specifies the revision's date (a value of -1 is
1328: * equivalent to using the current time).
1.52 jfb 1329: * Returns 0 on success, or -1 on failure.
1330: */
1331: int
1.53 jfb 1332: rcs_rev_add(RCSFILE *rf, RCSNUM *rev, const char *msg, time_t date)
1.52 jfb 1333: {
1334: time_t now;
1335: struct passwd *pw;
1336: struct rcs_delta *rdp;
1337:
1338: if (rev == RCS_HEAD_REV) {
1339: } else if ((rdp = rcs_findrev(rf, rev)) != NULL) {
1340: rcs_errno = RCS_ERR_DUPENT;
1341: return (-1);
1342: }
1343:
1344: if ((pw = getpwuid(getuid())) == NULL) {
1345: rcs_errno = RCS_ERR_ERRNO;
1346: return (-1);
1347: }
1348:
1349: if ((rdp = (struct rcs_delta *)malloc(sizeof(*rdp))) == NULL) {
1350: rcs_errno = RCS_ERR_ERRNO;
1351: return (-1);
1352: }
1353: memset(rdp, 0, sizeof(*rdp));
1354:
1355: TAILQ_INIT(&(rdp->rd_branches));
1356: TAILQ_INIT(&(rdp->rd_snodes));
1357:
1358: if ((rdp->rd_num = rcsnum_alloc()) == NULL) {
1359: rcs_freedelta(rdp);
1360: return (-1);
1361: }
1362: rcsnum_cpy(rev, rdp->rd_num, 0);
1363:
1364: if ((rdp->rd_author = cvs_strdup(pw->pw_name)) == NULL) {
1365: rcs_freedelta(rdp);
1366: return (-1);
1367: }
1368:
1369: if ((rdp->rd_state = cvs_strdup(RCS_STATE_EXP)) == NULL) {
1370: rcs_freedelta(rdp);
1371: return (-1);
1372: }
1373:
1374: if ((rdp->rd_log = cvs_strdup(msg)) == NULL) {
1375: rcs_errno = RCS_ERR_ERRNO;
1376: rcs_freedelta(rdp);
1377: return (-1);
1378: }
1379:
1.53 jfb 1380: if (date != (time_t)(-1))
1381: now = date;
1382: else
1383: time(&now);
1.52 jfb 1384: gmtime_r(&now, &(rdp->rd_date));
1385:
1386: TAILQ_INSERT_HEAD(&(rf->rf_delta), rdp, rd_list);
1387: rf->rf_ndelta++;
1.64 ! niallo 1388: /* not synced anymore */
! 1389: rf->rf_flags &= ~RCS_SYNCED;
1.52 jfb 1390:
1391: return (0);
1392: }
1393:
1394: /*
1395: * rcs_rev_remove()
1396: *
1397: * Remove the revision whose number is <rev> from the RCS file <rf>.
1398: */
1399: int
1400: rcs_rev_remove(RCSFILE *rf, RCSNUM *rev)
1401: {
1402: int ret;
1403: struct rcs_delta *rdp;
1404:
1405: ret = 0;
1406: if (rev == RCS_HEAD_REV)
1407: rev = rf->rf_head;
1408:
1409: /* do we actually have that revision? */
1410: if ((rdp = rcs_findrev(rf, rev)) == NULL) {
1411: rcs_errno = RCS_ERR_NOENT;
1412: ret = -1;
1413: } else {
1414: /* XXX assumes it's not a sub node */
1415: TAILQ_REMOVE(&(rf->rf_delta), rdp, rd_list);
1416: rf->rf_ndelta--;
1417: rf->rf_flags &= ~RCS_SYNCED;
1418: }
1419:
1420: return (ret);
1421:
1422: }
1423:
1424: /*
1.1 jfb 1425: * rcs_findrev()
1426: *
1427: * Find a specific revision's delta entry in the tree of the RCS file <rfp>.
1428: * The revision number is given in <rev>.
1429: * Returns a pointer to the delta on success, or NULL on failure.
1430: */
1431: static struct rcs_delta*
1.43 jfb 1432: rcs_findrev(RCSFILE *rfp, const RCSNUM *rev)
1.1 jfb 1433: {
1434: u_int cmplen;
1435: struct rcs_delta *rdp;
1436: struct rcs_dlist *hp;
1.6 vincent 1437: int found;
1.26 jfb 1438:
1.1 jfb 1439: cmplen = 2;
1440: hp = &(rfp->rf_delta);
1441:
1.6 vincent 1442: do {
1443: found = 0;
1444: TAILQ_FOREACH(rdp, hp, rd_list) {
1445: if (rcsnum_cmp(rdp->rd_num, rev, cmplen) == 0) {
1446: if (cmplen == rev->rn_len)
1447: return (rdp);
1.1 jfb 1448:
1.6 vincent 1449: hp = &(rdp->rd_snodes);
1450: cmplen += 2;
1451: found = 1;
1452: break;
1453: }
1.1 jfb 1454: }
1.6 vincent 1455: } while (found && cmplen < rev->rn_len);
1.1 jfb 1456:
1457: return (NULL);
1.20 jfb 1458: }
1459:
1460: /*
1.26 jfb 1461: * rcs_kwexp_set()
1462: *
1463: * Set the keyword expansion mode to use on the RCS file <file> to <mode>.
1464: * Returns 0 on success, or -1 on failure.
1465: */
1466: int
1467: rcs_kwexp_set(RCSFILE *file, int mode)
1468: {
1469: int i;
1470: char *tmp, buf[8] = "";
1471:
1472: if (RCS_KWEXP_INVAL(mode))
1473: return (-1);
1474:
1475: i = 0;
1476: if (mode == RCS_KWEXP_NONE)
1477: buf[0] = 'b';
1478: else if (mode == RCS_KWEXP_OLD)
1479: buf[0] = 'o';
1480: else {
1481: if (mode & RCS_KWEXP_NAME)
1482: buf[i++] = 'k';
1483: if (mode & RCS_KWEXP_VAL)
1484: buf[i++] = 'v';
1485: if (mode & RCS_KWEXP_LKR)
1486: buf[i++] = 'l';
1487: }
1488:
1.39 joris 1489: if ((tmp = cvs_strdup(buf)) == NULL) {
1.26 jfb 1490: cvs_log(LP_ERRNO, "%s: failed to copy expansion mode",
1491: file->rf_path);
1492: return (-1);
1493: }
1494:
1.27 jfb 1495: if (file->rf_expand != NULL)
1.39 joris 1496: cvs_strfree(file->rf_expand);
1.26 jfb 1497: file->rf_expand = tmp;
1.64 ! niallo 1498: /* not synced anymore */
! 1499: file->rf_flags &= ~RCS_SYNCED;
1.26 jfb 1500:
1501: return (0);
1502: }
1503:
1504: /*
1505: * rcs_kwexp_get()
1506: *
1507: * Retrieve the keyword expansion mode to be used for the RCS file <file>.
1508: */
1509: int
1510: rcs_kwexp_get(RCSFILE *file)
1511: {
1512: return rcs_kflag_get(file->rf_expand);
1513: }
1514:
1515: /*
1.20 jfb 1516: * rcs_kflag_get()
1517: *
1518: * Get the keyword expansion mode from a set of character flags given in
1519: * <flags> and return the appropriate flag mask. In case of an error, the
1520: * returned mask will have the RCS_KWEXP_ERR bit set to 1.
1521: */
1522: int
1523: rcs_kflag_get(const char *flags)
1524: {
1525: int fl;
1526: size_t len;
1527: const char *fp;
1528:
1529: fl = 0;
1530: len = strlen(flags);
1531:
1532: for (fp = flags; *fp != '\0'; fp++) {
1533: if (*fp == 'k')
1534: fl |= RCS_KWEXP_NAME;
1535: else if (*fp == 'v')
1536: fl |= RCS_KWEXP_VAL;
1537: else if (*fp == 'l')
1538: fl |= RCS_KWEXP_LKR;
1539: else if (*fp == 'o') {
1540: if (len != 1)
1541: fl |= RCS_KWEXP_ERR;
1542: fl |= RCS_KWEXP_OLD;
1543: } else if (*fp == 'b') {
1544: if (len != 1)
1545: fl |= RCS_KWEXP_ERR;
1546: } else /* unknown letter */
1547: fl |= RCS_KWEXP_ERR;
1548: }
1549:
1550: return (fl);
1.32 jfb 1551: }
1552:
1553: /*
1554: * rcs_errstr()
1555: *
1556: * Get the error string matching the RCS error code <code>.
1557: */
1.57 xsa 1558: const char *
1.32 jfb 1559: rcs_errstr(int code)
1560: {
1.50 jfb 1561: const char *esp;
1562:
1563: if ((code < 0) || ((code >= (int)RCS_NERR) && (code != RCS_ERR_ERRNO)))
1564: esp = NULL;
1565: else if (code == RCS_ERR_ERRNO)
1566: esp = strerror(errno);
1567: else
1568: esp = rcs_errstrs[code];
1569: return (esp);
1.1 jfb 1570: }
1571:
1.21 jfb 1572: void
1573: rcs_kflag_usage(void)
1574: {
1575: fprintf(stderr, "Valid expansion modes include:\n"
1.22 jfb 1576: "\t-kkv\tGenerate keywords using the default form.\n"
1577: "\t-kkvl\tLike -kkv, except locker's name inserted.\n"
1578: "\t-kk\tGenerate only keyword names in keyword strings.\n"
1579: "\t-kv\tGenerate only keyword values in keyword strings.\n"
1580: "\t-ko\tGenerate old keyword string "
1.21 jfb 1581: "(no changes from checked in file).\n"
1.22 jfb 1582: "\t-kb\tGenerate binary file unmodified (merges not allowed).\n");
1.21 jfb 1583: }
1.1 jfb 1584:
1585: /*
1586: * rcs_parse()
1587: *
1588: * Parse the contents of file <path>, which are in the RCS format.
1589: * Returns 0 on success, or -1 on failure.
1590: */
1.26 jfb 1591: static int
1.1 jfb 1592: rcs_parse(RCSFILE *rfp)
1593: {
1594: int ret;
1595: struct rcs_pdata *pdp;
1596:
1.26 jfb 1597: if (rfp->rf_flags & RCS_PARSED)
1.1 jfb 1598: return (0);
1599:
1.26 jfb 1600: if ((pdp = (struct rcs_pdata *)malloc(sizeof(*pdp))) == NULL) {
1.50 jfb 1601: rcs_errno = RCS_ERR_ERRNO;
1.1 jfb 1602: cvs_log(LP_ERRNO, "failed to allocate RCS parser data");
1603: return (-1);
1604: }
1605: memset(pdp, 0, sizeof(*pdp));
1606:
1.18 jfb 1607: pdp->rp_lines = 0;
1.1 jfb 1608: pdp->rp_pttype = RCS_TOK_ERR;
1609:
1610: pdp->rp_file = fopen(rfp->rf_path, "r");
1611: if (pdp->rp_file == NULL) {
1.50 jfb 1612: rcs_errno = RCS_ERR_ERRNO;
1.1 jfb 1613: cvs_log(LP_ERRNO, "failed to open RCS file `%s'", rfp->rf_path);
1614: rcs_freepdata(pdp);
1615: return (-1);
1616: }
1617:
1.59 xsa 1618: pdp->rp_buf = (char *)malloc((size_t)RCS_BUFSIZE);
1.1 jfb 1619: if (pdp->rp_buf == NULL) {
1.50 jfb 1620: rcs_errno = RCS_ERR_ERRNO;
1.1 jfb 1621: cvs_log(LP_ERRNO, "failed to allocate RCS parser buffer");
1622: rcs_freepdata(pdp);
1623: return (-1);
1624: }
1625: pdp->rp_blen = RCS_BUFSIZE;
1.18 jfb 1626: pdp->rp_bufend = pdp->rp_buf + pdp->rp_blen - 1;
1.1 jfb 1627:
1628: /* ditch the strict lock */
1.26 jfb 1629: rfp->rf_flags &= ~RCS_SLOCK;
1.1 jfb 1630: rfp->rf_pdata = pdp;
1631:
1.31 jfb 1632: if ((ret = rcs_parse_admin(rfp)) < 0) {
1.1 jfb 1633: rcs_freepdata(pdp);
1634: return (-1);
1.31 jfb 1635: } else if (ret == RCS_TOK_NUM) {
1636: for (;;) {
1637: ret = rcs_parse_delta(rfp);
1638: if (ret == 0)
1639: break;
1640: else if (ret == -1) {
1641: rcs_freepdata(pdp);
1642: return (-1);
1643: }
1.1 jfb 1644: }
1645: }
1646:
1647: ret = rcs_gettok(rfp);
1648: if (ret != RCS_TOK_DESC) {
1.50 jfb 1649: rcs_errno = RCS_ERR_PARSE;
1.1 jfb 1650: cvs_log(LP_ERR, "token `%s' found where RCS desc expected",
1651: RCS_TOKSTR(rfp));
1652: rcs_freepdata(pdp);
1653: return (-1);
1654: }
1655:
1656: ret = rcs_gettok(rfp);
1657: if (ret != RCS_TOK_STRING) {
1.50 jfb 1658: rcs_errno = RCS_ERR_PARSE;
1.1 jfb 1659: cvs_log(LP_ERR, "token `%s' found where RCS desc expected",
1660: RCS_TOKSTR(rfp));
1661: rcs_freepdata(pdp);
1662: return (-1);
1663: }
1664:
1.39 joris 1665: rfp->rf_desc = cvs_strdup(RCS_TOKSTR(rfp));
1.10 joris 1666: if (rfp->rf_desc == NULL) {
1667: cvs_log(LP_ERRNO, "failed to duplicate rcs token");
1668: rcs_freepdata(pdp);
1669: return (-1);
1670: }
1.1 jfb 1671:
1672: for (;;) {
1673: ret = rcs_parse_deltatext(rfp);
1674: if (ret == 0)
1675: break;
1676: else if (ret == -1) {
1677: rcs_freepdata(pdp);
1678: return (-1);
1679: }
1680: }
1681:
1682: rcs_freepdata(pdp);
1683:
1684: rfp->rf_pdata = NULL;
1.26 jfb 1685: rfp->rf_flags |= RCS_PARSED | RCS_SYNCED;
1.1 jfb 1686:
1687: return (0);
1688: }
1689:
1690: /*
1691: * rcs_parse_admin()
1692: *
1693: * Parse the administrative portion of an RCS file.
1.31 jfb 1694: * Returns the type of the first token found after the admin section on
1695: * success, or -1 on failure.
1.1 jfb 1696: */
1697: static int
1698: rcs_parse_admin(RCSFILE *rfp)
1699: {
1700: u_int i;
1701: int tok, ntok, hmask;
1702: struct rcs_key *rk;
1703:
1704: /* hmask is a mask of the headers already encountered */
1705: hmask = 0;
1706: for (;;) {
1707: tok = rcs_gettok(rfp);
1708: if (tok == RCS_TOK_ERR) {
1.50 jfb 1709: rcs_errno = RCS_ERR_PARSE;
1.1 jfb 1710: cvs_log(LP_ERR, "parse error in RCS admin section");
1711: return (-1);
1.31 jfb 1712: } else if ((tok == RCS_TOK_NUM) || (tok == RCS_TOK_DESC)) {
1713: /*
1714: * Assume this is the start of the first delta or
1715: * that we are dealing with an empty RCS file and
1716: * we just found the description.
1717: */
1.1 jfb 1718: rcs_pushtok(rfp, RCS_TOKSTR(rfp), tok);
1.31 jfb 1719: return (tok);
1.1 jfb 1720: }
1721:
1722: rk = NULL;
1.18 jfb 1723: for (i = 0; i < RCS_NKEYS; i++)
1.1 jfb 1724: if (rcs_keys[i].rk_id == tok)
1725: rk = &(rcs_keys[i]);
1726:
1727: if (hmask & (1 << tok)) {
1.50 jfb 1728: rcs_errno = RCS_ERR_PARSE;
1.1 jfb 1729: cvs_log(LP_ERR, "duplicate RCS key");
1730: return (-1);
1731: }
1732: hmask |= (1 << tok);
1733:
1734: switch (tok) {
1735: case RCS_TOK_HEAD:
1736: case RCS_TOK_BRANCH:
1737: case RCS_TOK_COMMENT:
1738: case RCS_TOK_EXPAND:
1739: ntok = rcs_gettok(rfp);
1740: if (ntok == RCS_TOK_SCOLON)
1741: break;
1742: if (ntok != rk->rk_val) {
1.50 jfb 1743: rcs_errno = RCS_ERR_PARSE;
1.1 jfb 1744: cvs_log(LP_ERR,
1745: "invalid value type for RCS key `%s'",
1746: rk->rk_str);
1747: }
1748:
1749: if (tok == RCS_TOK_HEAD) {
1.28 jfb 1750: if (rfp->rf_head == NULL) {
1751: rfp->rf_head = rcsnum_alloc();
1752: if (rfp->rf_head == NULL)
1753: return (-1);
1754: }
1.1 jfb 1755: rcsnum_aton(RCS_TOKSTR(rfp), NULL,
1756: rfp->rf_head);
1.14 deraadt 1757: } else if (tok == RCS_TOK_BRANCH) {
1.35 jfb 1758: if (rfp->rf_branch == NULL) {
1759: rfp->rf_branch = rcsnum_alloc();
1760: if (rfp->rf_branch == NULL)
1761: return (-1);
1762: }
1763: if (rcsnum_aton(RCS_TOKSTR(rfp), NULL,
1764: rfp->rf_branch) < 0)
1765: return (-1);
1.14 deraadt 1766: } else if (tok == RCS_TOK_COMMENT) {
1.39 joris 1767: rfp->rf_comment = cvs_strdup(RCS_TOKSTR(rfp));
1.10 joris 1768: if (rfp->rf_comment == NULL) {
1769: cvs_log(LP_ERRNO,
1770: "failed to duplicate rcs token");
1771: return (-1);
1772: }
1.14 deraadt 1773: } else if (tok == RCS_TOK_EXPAND) {
1.39 joris 1774: rfp->rf_expand = cvs_strdup(RCS_TOKSTR(rfp));
1.10 joris 1775: if (rfp->rf_expand == NULL) {
1776: cvs_log(LP_ERRNO,
1777: "failed to duplicate rcs token");
1778: return (-1);
1779: }
1.1 jfb 1780: }
1781:
1782: /* now get the expected semi-colon */
1783: ntok = rcs_gettok(rfp);
1784: if (ntok != RCS_TOK_SCOLON) {
1.50 jfb 1785: rcs_errno = RCS_ERR_PARSE;
1.1 jfb 1786: cvs_log(LP_ERR,
1787: "missing semi-colon after RCS `%s' key",
1.26 jfb 1788: rk->rk_str);
1.1 jfb 1789: return (-1);
1790: }
1791: break;
1792: case RCS_TOK_ACCESS:
1.29 jfb 1793: if (rcs_parse_access(rfp) < 0)
1794: return (-1);
1.1 jfb 1795: break;
1796: case RCS_TOK_SYMBOLS:
1.29 jfb 1797: if (rcs_parse_symbols(rfp) < 0)
1798: return (-1);
1.1 jfb 1799: break;
1800: case RCS_TOK_LOCKS:
1.29 jfb 1801: if (rcs_parse_locks(rfp) < 0)
1802: return (-1);
1.1 jfb 1803: break;
1804: default:
1.50 jfb 1805: rcs_errno = RCS_ERR_PARSE;
1.1 jfb 1806: cvs_log(LP_ERR,
1807: "unexpected token `%s' in RCS admin section",
1808: RCS_TOKSTR(rfp));
1809: return (-1);
1810: }
1811: }
1812:
1813: return (0);
1814: }
1815:
1816: /*
1817: * rcs_parse_delta()
1818: *
1819: * Parse an RCS delta section and allocate the structure to store that delta's
1820: * information in the <rfp> delta list.
1821: * Returns 1 if the section was parsed OK, 0 if it is the last delta, and
1822: * -1 on error.
1823: */
1824: static int
1825: rcs_parse_delta(RCSFILE *rfp)
1826: {
1827: int ret, tok, ntok, hmask;
1828: u_int i;
1829: char *tokstr;
1.3 vincent 1830: RCSNUM *datenum;
1.1 jfb 1831: struct rcs_delta *rdp;
1832: struct rcs_key *rk;
1833:
1834: rdp = (struct rcs_delta *)malloc(sizeof(*rdp));
1835: if (rdp == NULL) {
1.50 jfb 1836: rcs_errno = RCS_ERR_ERRNO;
1.1 jfb 1837: cvs_log(LP_ERRNO, "failed to allocate RCS delta structure");
1838: return (-1);
1839: }
1840: memset(rdp, 0, sizeof(*rdp));
1841:
1842: rdp->rd_num = rcsnum_alloc();
1.11 joris 1843: if (rdp->rd_num == NULL) {
1844: rcs_freedelta(rdp);
1845: return (-1);
1846: }
1.1 jfb 1847: rdp->rd_next = rcsnum_alloc();
1.11 joris 1848: if (rdp->rd_next == NULL) {
1849: rcs_freedelta(rdp);
1850: return (-1);
1851: }
1.1 jfb 1852:
1853: TAILQ_INIT(&(rdp->rd_branches));
1.52 jfb 1854: TAILQ_INIT(&(rdp->rd_snodes));
1.1 jfb 1855:
1856: tok = rcs_gettok(rfp);
1857: if (tok != RCS_TOK_NUM) {
1.52 jfb 1858: rcs_errno = RCS_ERR_PARSE;
1.1 jfb 1859: cvs_log(LP_ERR, "unexpected token `%s' at start of delta",
1860: RCS_TOKSTR(rfp));
1861: rcs_freedelta(rdp);
1862: return (-1);
1863: }
1864: rcsnum_aton(RCS_TOKSTR(rfp), NULL, rdp->rd_num);
1865:
1866: hmask = 0;
1867: ret = 0;
1868: tokstr = NULL;
1869:
1870: for (;;) {
1871: tok = rcs_gettok(rfp);
1872: if (tok == RCS_TOK_ERR) {
1.50 jfb 1873: rcs_errno = RCS_ERR_PARSE;
1.1 jfb 1874: cvs_log(LP_ERR, "parse error in RCS delta section");
1875: rcs_freedelta(rdp);
1876: return (-1);
1.14 deraadt 1877: } else if (tok == RCS_TOK_NUM || tok == RCS_TOK_DESC) {
1.15 tedu 1878: rcs_pushtok(rfp, RCS_TOKSTR(rfp), tok);
1.1 jfb 1879: ret = (tok == RCS_TOK_NUM ? 1 : 0);
1880: break;
1881: }
1882:
1883: rk = NULL;
1.18 jfb 1884: for (i = 0; i < RCS_NKEYS; i++)
1.1 jfb 1885: if (rcs_keys[i].rk_id == tok)
1886: rk = &(rcs_keys[i]);
1887:
1888: if (hmask & (1 << tok)) {
1.50 jfb 1889: rcs_errno = RCS_ERR_PARSE;
1.1 jfb 1890: cvs_log(LP_ERR, "duplicate RCS key");
1891: rcs_freedelta(rdp);
1892: return (-1);
1893: }
1894: hmask |= (1 << tok);
1895:
1896: switch (tok) {
1897: case RCS_TOK_DATE:
1898: case RCS_TOK_AUTHOR:
1899: case RCS_TOK_STATE:
1900: case RCS_TOK_NEXT:
1901: ntok = rcs_gettok(rfp);
1902: if (ntok == RCS_TOK_SCOLON) {
1903: if (rk->rk_flags & RCS_VOPT)
1904: break;
1905: else {
1.50 jfb 1906: rcs_errno = RCS_ERR_PARSE;
1.1 jfb 1907: cvs_log(LP_ERR, "missing mandatory "
1908: "value to RCS key `%s'",
1909: rk->rk_str);
1910: rcs_freedelta(rdp);
1911: return (-1);
1912: }
1913: }
1914:
1915: if (ntok != rk->rk_val) {
1.50 jfb 1916: rcs_errno = RCS_ERR_PARSE;
1.1 jfb 1917: cvs_log(LP_ERR,
1918: "invalid value type for RCS key `%s'",
1919: rk->rk_str);
1920: rcs_freedelta(rdp);
1921: return (-1);
1922: }
1923:
1924: if (tokstr != NULL)
1.41 jfb 1925: cvs_strfree(tokstr);
1.39 joris 1926: tokstr = cvs_strdup(RCS_TOKSTR(rfp));
1.10 joris 1927: if (tokstr == NULL) {
1.15 tedu 1928: cvs_log(LP_ERRNO,
1.10 joris 1929: "failed to duplicate rcs token");
1930: rcs_freedelta(rdp);
1931: return (-1);
1932: }
1.1 jfb 1933:
1934: /* now get the expected semi-colon */
1935: ntok = rcs_gettok(rfp);
1936: if (ntok != RCS_TOK_SCOLON) {
1.50 jfb 1937: rcs_errno = RCS_ERR_PARSE;
1.1 jfb 1938: cvs_log(LP_ERR,
1939: "missing semi-colon after RCS `%s' key",
1.26 jfb 1940: rk->rk_str);
1.41 jfb 1941: cvs_strfree(tokstr);
1.1 jfb 1942: rcs_freedelta(rdp);
1943: return (-1);
1944: }
1945:
1946: if (tok == RCS_TOK_DATE) {
1.25 jfb 1947: if ((datenum = rcsnum_parse(tokstr)) == NULL) {
1.41 jfb 1948: cvs_strfree(tokstr);
1.11 joris 1949: rcs_freedelta(rdp);
1950: return (-1);
1951: }
1.3 vincent 1952: if (datenum->rn_len != 6) {
1.50 jfb 1953: rcs_errno = RCS_ERR_PARSE;
1.1 jfb 1954: cvs_log(LP_ERR,
1955: "RCS date specification has %s "
1956: "fields",
1.3 vincent 1957: (datenum->rn_len > 6) ? "too many" :
1.1 jfb 1958: "missing");
1.41 jfb 1959: cvs_strfree(tokstr);
1.1 jfb 1960: rcs_freedelta(rdp);
1.37 tedu 1961: rcsnum_free(datenum);
1962: return (-1);
1.1 jfb 1963: }
1.3 vincent 1964: rdp->rd_date.tm_year = datenum->rn_id[0];
1.19 jfb 1965: if (rdp->rd_date.tm_year >= 1900)
1966: rdp->rd_date.tm_year -= 1900;
1.3 vincent 1967: rdp->rd_date.tm_mon = datenum->rn_id[1] - 1;
1968: rdp->rd_date.tm_mday = datenum->rn_id[2];
1969: rdp->rd_date.tm_hour = datenum->rn_id[3];
1970: rdp->rd_date.tm_min = datenum->rn_id[4];
1971: rdp->rd_date.tm_sec = datenum->rn_id[5];
1972: rcsnum_free(datenum);
1.14 deraadt 1973: } else if (tok == RCS_TOK_AUTHOR) {
1.1 jfb 1974: rdp->rd_author = tokstr;
1975: tokstr = NULL;
1.14 deraadt 1976: } else if (tok == RCS_TOK_STATE) {
1.1 jfb 1977: rdp->rd_state = tokstr;
1978: tokstr = NULL;
1.14 deraadt 1979: } else if (tok == RCS_TOK_NEXT) {
1.1 jfb 1980: rcsnum_aton(tokstr, NULL, rdp->rd_next);
1981: }
1982: break;
1983: case RCS_TOK_BRANCHES:
1.46 jfb 1984: if (rcs_parse_branches(rfp, rdp) < 0) {
1985: rcs_freedelta(rdp);
1986: return (-1);
1987: }
1.1 jfb 1988: break;
1989: default:
1.50 jfb 1990: rcs_errno = RCS_ERR_PARSE;
1.1 jfb 1991: cvs_log(LP_ERR,
1992: "unexpected token `%s' in RCS delta",
1993: RCS_TOKSTR(rfp));
1994: rcs_freedelta(rdp);
1995: return (-1);
1996: }
1997: }
1998:
1.13 jfb 1999: if (tokstr != NULL)
1.39 joris 2000: cvs_strfree(tokstr);
1.13 jfb 2001:
1.1 jfb 2002: TAILQ_INSERT_TAIL(&(rfp->rf_delta), rdp, rd_list);
1.26 jfb 2003: rfp->rf_ndelta++;
1.1 jfb 2004:
2005: return (ret);
2006: }
2007:
2008: /*
2009: * rcs_parse_deltatext()
2010: *
2011: * Parse an RCS delta text section and fill in the log and text field of the
2012: * appropriate delta section.
2013: * Returns 1 if the section was parsed OK, 0 if it is the last delta, and
2014: * -1 on error.
2015: */
2016: static int
2017: rcs_parse_deltatext(RCSFILE *rfp)
2018: {
2019: int tok;
2020: RCSNUM *tnum;
2021: struct rcs_delta *rdp;
2022:
2023: tok = rcs_gettok(rfp);
2024: if (tok == RCS_TOK_EOF)
2025: return (0);
2026:
2027: if (tok != RCS_TOK_NUM) {
1.50 jfb 2028: rcs_errno = RCS_ERR_PARSE;
1.1 jfb 2029: cvs_log(LP_ERR,
2030: "unexpected token `%s' at start of RCS delta text",
2031: RCS_TOKSTR(rfp));
2032: return (-1);
2033: }
1.13 jfb 2034:
2035: tnum = rcsnum_alloc();
2036: if (tnum == NULL)
2037: return (-1);
1.1 jfb 2038: rcsnum_aton(RCS_TOKSTR(rfp), NULL, tnum);
2039:
2040: TAILQ_FOREACH(rdp, &(rfp->rf_delta), rd_list) {
2041: if (rcsnum_cmp(tnum, rdp->rd_num, 0) == 0)
2042: break;
2043: }
1.13 jfb 2044: rcsnum_free(tnum);
2045:
1.1 jfb 2046: if (rdp == NULL) {
2047: cvs_log(LP_ERR, "RCS delta text `%s' has no matching delta",
2048: RCS_TOKSTR(rfp));
2049: return (-1);
2050: }
2051:
2052: tok = rcs_gettok(rfp);
2053: if (tok != RCS_TOK_LOG) {
1.50 jfb 2054: rcs_errno = RCS_ERR_PARSE;
1.1 jfb 2055: cvs_log(LP_ERR, "unexpected token `%s' where RCS log expected",
2056: RCS_TOKSTR(rfp));
2057: return (-1);
2058: }
2059:
2060: tok = rcs_gettok(rfp);
2061: if (tok != RCS_TOK_STRING) {
1.50 jfb 2062: rcs_errno = RCS_ERR_PARSE;
1.1 jfb 2063: cvs_log(LP_ERR, "unexpected token `%s' where RCS log expected",
2064: RCS_TOKSTR(rfp));
2065: return (-1);
2066: }
1.39 joris 2067: rdp->rd_log = cvs_strdup(RCS_TOKSTR(rfp));
1.1 jfb 2068: if (rdp->rd_log == NULL) {
2069: cvs_log(LP_ERRNO, "failed to copy RCS deltatext log");
2070: return (-1);
2071: }
2072:
2073: tok = rcs_gettok(rfp);
2074: if (tok != RCS_TOK_TEXT) {
1.50 jfb 2075: rcs_errno = RCS_ERR_PARSE;
1.1 jfb 2076: cvs_log(LP_ERR, "unexpected token `%s' where RCS text expected",
2077: RCS_TOKSTR(rfp));
2078: return (-1);
2079: }
2080:
2081: tok = rcs_gettok(rfp);
2082: if (tok != RCS_TOK_STRING) {
1.50 jfb 2083: rcs_errno = RCS_ERR_PARSE;
1.1 jfb 2084: cvs_log(LP_ERR, "unexpected token `%s' where RCS text expected",
2085: RCS_TOKSTR(rfp));
2086: return (-1);
2087: }
2088:
1.45 jfb 2089: rdp->rd_text = (u_char *)malloc(RCS_TOKLEN(rfp));
1.1 jfb 2090: if (rdp->rd_text == NULL) {
2091: cvs_log(LP_ERRNO, "failed to copy RCS delta text");
2092: return (-1);
2093: }
1.45 jfb 2094: memcpy(rdp->rd_text, RCS_TOKSTR(rfp), RCS_TOKLEN(rfp));
1.42 jfb 2095: rdp->rd_tlen = RCS_TOKLEN(rfp);
1.1 jfb 2096:
2097: return (1);
2098: }
2099:
2100: /*
2101: * rcs_parse_access()
2102: *
2103: * Parse the access list given as value to the `access' keyword.
2104: * Returns 0 on success, or -1 on failure.
2105: */
2106: static int
2107: rcs_parse_access(RCSFILE *rfp)
2108: {
2109: int type;
2110:
2111: while ((type = rcs_gettok(rfp)) != RCS_TOK_SCOLON) {
2112: if (type != RCS_TOK_ID) {
1.50 jfb 2113: rcs_errno = RCS_ERR_PARSE;
1.1 jfb 2114: cvs_log(LP_ERR, "unexpected token `%s' in access list",
2115: RCS_TOKSTR(rfp));
2116: return (-1);
2117: }
1.29 jfb 2118:
2119: if (rcs_access_add(rfp, RCS_TOKSTR(rfp)) < 0)
2120: return (-1);
1.1 jfb 2121: }
2122:
2123: return (0);
2124: }
2125:
2126: /*
2127: * rcs_parse_symbols()
2128: *
2129: * Parse the symbol list given as value to the `symbols' keyword.
2130: * Returns 0 on success, or -1 on failure.
2131: */
2132: static int
2133: rcs_parse_symbols(RCSFILE *rfp)
2134: {
2135: int type;
2136: struct rcs_sym *symp;
2137:
2138: for (;;) {
2139: type = rcs_gettok(rfp);
2140: if (type == RCS_TOK_SCOLON)
2141: break;
2142:
1.41 jfb 2143: if (type != RCS_TOK_ID) {
1.50 jfb 2144: rcs_errno = RCS_ERR_PARSE;
1.1 jfb 2145: cvs_log(LP_ERR, "unexpected token `%s' in symbol list",
2146: RCS_TOKSTR(rfp));
2147: return (-1);
2148: }
2149:
2150: symp = (struct rcs_sym *)malloc(sizeof(*symp));
2151: if (symp == NULL) {
1.50 jfb 2152: rcs_errno = RCS_ERR_ERRNO;
1.1 jfb 2153: cvs_log(LP_ERRNO, "failed to allocate RCS symbol");
2154: return (-1);
2155: }
1.39 joris 2156: symp->rs_name = cvs_strdup(RCS_TOKSTR(rfp));
1.10 joris 2157: if (symp->rs_name == NULL) {
2158: cvs_log(LP_ERRNO, "failed to duplicate rcs token");
2159: free(symp);
2160: return (-1);
2161: }
2162:
1.1 jfb 2163: symp->rs_num = rcsnum_alloc();
1.11 joris 2164: if (symp->rs_num == NULL) {
2165: cvs_log(LP_ERRNO, "failed to allocate rcsnum info");
1.39 joris 2166: cvs_strfree(symp->rs_name);
1.11 joris 2167: free(symp);
2168: return (-1);
2169: }
1.1 jfb 2170:
2171: type = rcs_gettok(rfp);
2172: if (type != RCS_TOK_COLON) {
1.50 jfb 2173: rcs_errno = RCS_ERR_PARSE;
1.1 jfb 2174: cvs_log(LP_ERR, "unexpected token `%s' in symbol list",
2175: RCS_TOKSTR(rfp));
1.11 joris 2176: rcsnum_free(symp->rs_num);
1.39 joris 2177: cvs_strfree(symp->rs_name);
1.1 jfb 2178: free(symp);
2179: return (-1);
2180: }
2181:
2182: type = rcs_gettok(rfp);
2183: if (type != RCS_TOK_NUM) {
1.50 jfb 2184: rcs_errno = RCS_ERR_PARSE;
1.1 jfb 2185: cvs_log(LP_ERR, "unexpected token `%s' in symbol list",
2186: RCS_TOKSTR(rfp));
1.11 joris 2187: rcsnum_free(symp->rs_num);
1.39 joris 2188: cvs_strfree(symp->rs_name);
1.1 jfb 2189: free(symp);
2190: return (-1);
2191: }
2192:
2193: if (rcsnum_aton(RCS_TOKSTR(rfp), NULL, symp->rs_num) < 0) {
2194: cvs_log(LP_ERR, "failed to parse RCS NUM `%s'",
2195: RCS_TOKSTR(rfp));
1.11 joris 2196: rcsnum_free(symp->rs_num);
1.39 joris 2197: cvs_strfree(symp->rs_name);
1.1 jfb 2198: free(symp);
2199: return (-1);
2200: }
2201:
1.43 jfb 2202: TAILQ_INSERT_TAIL(&(rfp->rf_symbols), symp, rs_list);
1.1 jfb 2203: }
2204:
2205: return (0);
2206: }
2207:
2208: /*
2209: * rcs_parse_locks()
2210: *
2211: * Parse the lock list given as value to the `locks' keyword.
2212: * Returns 0 on success, or -1 on failure.
2213: */
2214: static int
2215: rcs_parse_locks(RCSFILE *rfp)
2216: {
2217: int type;
2218: struct rcs_lock *lkp;
2219:
2220: for (;;) {
2221: type = rcs_gettok(rfp);
2222: if (type == RCS_TOK_SCOLON)
2223: break;
2224:
2225: if (type != RCS_TOK_ID) {
1.50 jfb 2226: rcs_errno = RCS_ERR_PARSE;
1.1 jfb 2227: cvs_log(LP_ERR, "unexpected token `%s' in lock list",
2228: RCS_TOKSTR(rfp));
2229: return (-1);
2230: }
2231:
2232: lkp = (struct rcs_lock *)malloc(sizeof(*lkp));
2233: if (lkp == NULL) {
2234: cvs_log(LP_ERRNO, "failed to allocate RCS lock");
2235: return (-1);
2236: }
2237: lkp->rl_num = rcsnum_alloc();
1.11 joris 2238: if (lkp->rl_num == NULL) {
2239: free(lkp);
2240: return (-1);
2241: }
1.1 jfb 2242:
2243: type = rcs_gettok(rfp);
2244: if (type != RCS_TOK_COLON) {
1.50 jfb 2245: rcs_errno = RCS_ERR_PARSE;
1.1 jfb 2246: cvs_log(LP_ERR, "unexpected token `%s' in symbol list",
2247: RCS_TOKSTR(rfp));
1.37 tedu 2248: rcsnum_free(lkp->rl_num);
1.1 jfb 2249: free(lkp);
2250: return (-1);
2251: }
2252:
2253: type = rcs_gettok(rfp);
2254: if (type != RCS_TOK_NUM) {
1.50 jfb 2255: rcs_errno = RCS_ERR_PARSE;
1.1 jfb 2256: cvs_log(LP_ERR, "unexpected token `%s' in symbol list",
2257: RCS_TOKSTR(rfp));
1.37 tedu 2258: rcsnum_free(lkp->rl_num);
1.1 jfb 2259: free(lkp);
2260: return (-1);
2261: }
2262:
2263: if (rcsnum_aton(RCS_TOKSTR(rfp), NULL, lkp->rl_num) < 0) {
2264: cvs_log(LP_ERR, "failed to parse RCS NUM `%s'",
2265: RCS_TOKSTR(rfp));
1.37 tedu 2266: rcsnum_free(lkp->rl_num);
1.1 jfb 2267: free(lkp);
2268: return (-1);
2269: }
2270:
2271: TAILQ_INSERT_HEAD(&(rfp->rf_locks), lkp, rl_list);
2272: }
2273:
2274: /* check if we have a `strict' */
2275: type = rcs_gettok(rfp);
2276: if (type != RCS_TOK_STRICT) {
2277: rcs_pushtok(rfp, RCS_TOKSTR(rfp), type);
1.14 deraadt 2278: } else {
1.26 jfb 2279: rfp->rf_flags |= RCS_SLOCK;
1.1 jfb 2280:
2281: type = rcs_gettok(rfp);
2282: if (type != RCS_TOK_SCOLON) {
1.50 jfb 2283: rcs_errno = RCS_ERR_PARSE;
1.1 jfb 2284: cvs_log(LP_ERR,
2285: "missing semi-colon after `strict' keyword");
2286: return (-1);
2287: }
2288: }
2289:
2290: return (0);
2291: }
2292:
2293: /*
2294: * rcs_parse_branches()
2295: *
2296: * Parse the list of branches following a `branches' keyword in a delta.
2297: * Returns 0 on success, or -1 on failure.
2298: */
2299: static int
2300: rcs_parse_branches(RCSFILE *rfp, struct rcs_delta *rdp)
2301: {
2302: int type;
2303: struct rcs_branch *brp;
2304:
2305: for (;;) {
2306: type = rcs_gettok(rfp);
2307: if (type == RCS_TOK_SCOLON)
2308: break;
2309:
2310: if (type != RCS_TOK_NUM) {
1.50 jfb 2311: rcs_errno = RCS_ERR_PARSE;
1.1 jfb 2312: cvs_log(LP_ERR,
2313: "unexpected token `%s' in list of branches",
2314: RCS_TOKSTR(rfp));
2315: return (-1);
2316: }
2317:
2318: brp = (struct rcs_branch *)malloc(sizeof(*brp));
2319: if (brp == NULL) {
1.50 jfb 2320: rcs_errno = RCS_ERR_ERRNO;
1.1 jfb 2321: cvs_log(LP_ERRNO, "failed to allocate RCS branch");
2322: return (-1);
2323: }
1.46 jfb 2324: brp->rb_num = rcsnum_parse(RCS_TOKSTR(rfp));
1.11 joris 2325: if (brp->rb_num == NULL) {
2326: free(brp);
2327: return (-1);
2328: }
1.1 jfb 2329:
2330: TAILQ_INSERT_TAIL(&(rdp->rd_branches), brp, rb_list);
2331: }
2332:
2333: return (0);
2334: }
2335:
2336: /*
2337: * rcs_freedelta()
2338: *
2339: * Free the contents of a delta structure.
2340: */
1.18 jfb 2341: static void
1.1 jfb 2342: rcs_freedelta(struct rcs_delta *rdp)
2343: {
1.12 jfb 2344: struct rcs_branch *rb;
1.1 jfb 2345: struct rcs_delta *crdp;
2346:
1.12 jfb 2347: if (rdp->rd_num != NULL)
2348: rcsnum_free(rdp->rd_num);
2349: if (rdp->rd_next != NULL)
2350: rcsnum_free(rdp->rd_next);
2351:
1.1 jfb 2352: if (rdp->rd_author != NULL)
1.39 joris 2353: cvs_strfree(rdp->rd_author);
1.1 jfb 2354: if (rdp->rd_state != NULL)
1.39 joris 2355: cvs_strfree(rdp->rd_state);
1.1 jfb 2356: if (rdp->rd_log != NULL)
1.39 joris 2357: cvs_strfree(rdp->rd_log);
1.1 jfb 2358: if (rdp->rd_text != NULL)
1.45 jfb 2359: free(rdp->rd_text);
1.12 jfb 2360:
2361: while ((rb = TAILQ_FIRST(&(rdp->rd_branches))) != NULL) {
2362: TAILQ_REMOVE(&(rdp->rd_branches), rb, rb_list);
2363: rcsnum_free(rb->rb_num);
2364: free(rb);
2365: }
1.1 jfb 2366:
2367: while ((crdp = TAILQ_FIRST(&(rdp->rd_snodes))) != NULL) {
2368: TAILQ_REMOVE(&(rdp->rd_snodes), crdp, rd_list);
2369: rcs_freedelta(crdp);
2370: }
2371:
2372: free(rdp);
2373: }
2374:
2375: /*
2376: * rcs_freepdata()
2377: *
2378: * Free the contents of the parser data structure.
2379: */
2380: static void
2381: rcs_freepdata(struct rcs_pdata *pd)
2382: {
2383: if (pd->rp_file != NULL)
2384: (void)fclose(pd->rp_file);
2385: if (pd->rp_buf != NULL)
2386: free(pd->rp_buf);
2387: free(pd);
2388: }
2389:
2390: /*
2391: * rcs_gettok()
2392: *
2393: * Get the next RCS token from the string <str>.
2394: */
2395: static int
2396: rcs_gettok(RCSFILE *rfp)
2397: {
2398: u_int i;
2399: int ch, last, type;
1.18 jfb 2400: size_t len;
2401: char *bp;
1.1 jfb 2402: struct rcs_pdata *pdp = (struct rcs_pdata *)rfp->rf_pdata;
2403:
2404: type = RCS_TOK_ERR;
2405: bp = pdp->rp_buf;
1.42 jfb 2406: pdp->rp_tlen = 0;
1.1 jfb 2407: *bp = '\0';
2408:
2409: if (pdp->rp_pttype != RCS_TOK_ERR) {
2410: type = pdp->rp_pttype;
2411: strlcpy(pdp->rp_buf, pdp->rp_ptok, pdp->rp_blen);
2412: pdp->rp_pttype = RCS_TOK_ERR;
2413: return (type);
2414: }
2415:
2416: /* skip leading whitespace */
2417: /* XXX we must skip backspace too for compatibility, should we? */
2418: do {
2419: ch = getc(pdp->rp_file);
2420: if (ch == '\n')
1.18 jfb 2421: pdp->rp_lines++;
1.1 jfb 2422: } while (isspace(ch));
2423:
2424: if (ch == EOF) {
2425: type = RCS_TOK_EOF;
1.14 deraadt 2426: } else if (ch == ';') {
1.1 jfb 2427: type = RCS_TOK_SCOLON;
1.14 deraadt 2428: } else if (ch == ':') {
1.1 jfb 2429: type = RCS_TOK_COLON;
1.14 deraadt 2430: } else if (isalpha(ch)) {
1.31 jfb 2431: type = RCS_TOK_ID;
1.1 jfb 2432: *(bp++) = ch;
1.18 jfb 2433: for (;;) {
1.1 jfb 2434: ch = getc(pdp->rp_file);
1.11 joris 2435: if (!isalnum(ch) && ch != '_' && ch != '-') {
1.1 jfb 2436: ungetc(ch, pdp->rp_file);
2437: break;
2438: }
2439: *(bp++) = ch;
1.42 jfb 2440: pdp->rp_tlen++;
1.18 jfb 2441: if (bp == pdp->rp_bufend - 1) {
2442: len = bp - pdp->rp_buf;
2443: if (rcs_growbuf(rfp) < 0) {
2444: type = RCS_TOK_ERR;
2445: break;
2446: }
2447: bp = pdp->rp_buf + len;
2448: }
1.1 jfb 2449: }
2450: *bp = '\0';
2451:
1.18 jfb 2452: if (type != RCS_TOK_ERR) {
2453: for (i = 0; i < RCS_NKEYS; i++) {
2454: if (strcmp(rcs_keys[i].rk_str,
2455: pdp->rp_buf) == 0) {
2456: type = rcs_keys[i].rk_id;
2457: break;
2458: }
1.1 jfb 2459: }
2460: }
1.14 deraadt 2461: } else if (ch == '@') {
1.1 jfb 2462: /* we have a string */
1.18 jfb 2463: type = RCS_TOK_STRING;
1.1 jfb 2464: for (;;) {
2465: ch = getc(pdp->rp_file);
2466: if (ch == '@') {
2467: ch = getc(pdp->rp_file);
2468: if (ch != '@') {
2469: ungetc(ch, pdp->rp_file);
2470: break;
2471: }
1.14 deraadt 2472: } else if (ch == '\n')
1.18 jfb 2473: pdp->rp_lines++;
1.1 jfb 2474:
2475: *(bp++) = ch;
1.42 jfb 2476: pdp->rp_tlen++;
1.18 jfb 2477: if (bp == pdp->rp_bufend - 1) {
2478: len = bp - pdp->rp_buf;
2479: if (rcs_growbuf(rfp) < 0) {
2480: type = RCS_TOK_ERR;
2481: break;
2482: }
2483: bp = pdp->rp_buf + len;
2484: }
1.1 jfb 2485: }
2486:
2487: *bp = '\0';
1.14 deraadt 2488: } else if (isdigit(ch)) {
1.1 jfb 2489: *(bp++) = ch;
2490: last = ch;
2491: type = RCS_TOK_NUM;
2492:
2493: for (;;) {
2494: ch = getc(pdp->rp_file);
1.18 jfb 2495: if (bp == pdp->rp_bufend)
1.1 jfb 2496: break;
2497: if (!isdigit(ch) && ch != '.') {
2498: ungetc(ch, pdp->rp_file);
2499: break;
2500: }
2501:
2502: if (last == '.' && ch == '.') {
2503: type = RCS_TOK_ERR;
2504: break;
2505: }
2506: last = ch;
2507: *(bp++) = ch;
1.42 jfb 2508: pdp->rp_tlen++;
1.1 jfb 2509: }
1.18 jfb 2510: *bp = '\0';
1.1 jfb 2511: }
2512:
2513: return (type);
2514: }
2515:
2516: /*
2517: * rcs_pushtok()
2518: *
2519: * Push a token back in the parser's token buffer.
2520: */
2521: static int
2522: rcs_pushtok(RCSFILE *rfp, const char *tok, int type)
2523: {
2524: struct rcs_pdata *pdp = (struct rcs_pdata *)rfp->rf_pdata;
2525:
2526: if (pdp->rp_pttype != RCS_TOK_ERR)
2527: return (-1);
2528:
2529: pdp->rp_pttype = type;
2530: strlcpy(pdp->rp_ptok, tok, sizeof(pdp->rp_ptok));
2531: return (0);
2532: }
2533:
2534:
2535: /*
2536: * rcs_splitlines()
2537: *
2538: * Split the contents of a file into a list of lines.
2539: */
2540: static struct rcs_foo*
2541: rcs_splitlines(const char *fcont)
2542: {
2543: char *dcp;
2544: struct rcs_foo *foo;
2545: struct rcs_line *lp;
2546:
2547: foo = (struct rcs_foo *)malloc(sizeof(*foo));
2548: if (foo == NULL) {
2549: cvs_log(LP_ERR, "failed to allocate line structure");
2550: return (NULL);
2551: }
2552: TAILQ_INIT(&(foo->rl_lines));
2553: foo->rl_nblines = 0;
2554: foo->rl_data = strdup(fcont);
2555: if (foo->rl_data == NULL) {
2556: cvs_log(LP_ERRNO, "failed to copy file contents");
2557: free(foo);
2558: return (NULL);
2559: }
2560:
2561: /*
2562: * Add a first bogus line with line number 0. This is used so we
2563: * can position the line pointer before 1 when changing the first line
2564: * in rcs_patch().
2565: */
2566: lp = (struct rcs_line *)malloc(sizeof(*lp));
1.38 joris 2567: if (lp == NULL) {
2568: rcs_freefoo(foo);
1.1 jfb 2569: return (NULL);
1.38 joris 2570: }
1.5 vincent 2571:
1.1 jfb 2572: lp->rl_line = NULL;
2573: lp->rl_lineno = 0;
2574: TAILQ_INSERT_TAIL(&(foo->rl_lines), lp, rl_list);
2575:
2576:
2577: for (dcp = foo->rl_data; *dcp != '\0';) {
2578: lp = (struct rcs_line *)malloc(sizeof(*lp));
2579: if (lp == NULL) {
1.38 joris 2580: rcs_freefoo(foo);
1.1 jfb 2581: cvs_log(LP_ERR, "failed to allocate line entry");
2582: return (NULL);
2583: }
2584:
2585: lp->rl_line = dcp;
2586: lp->rl_lineno = ++(foo->rl_nblines);
2587: TAILQ_INSERT_TAIL(&(foo->rl_lines), lp, rl_list);
2588:
2589: dcp = strchr(dcp, '\n');
2590: if (dcp == NULL) {
2591: break;
2592: }
2593: *(dcp++) = '\0';
2594: }
2595:
2596: return (foo);
1.5 vincent 2597: }
2598:
2599: static void
2600: rcs_freefoo(struct rcs_foo *fp)
2601: {
2602: struct rcs_line *lp;
2603:
2604: while ((lp = TAILQ_FIRST(&fp->rl_lines)) != NULL) {
2605: TAILQ_REMOVE(&fp->rl_lines, lp, rl_list);
2606: free(lp);
2607: }
2608: free(fp->rl_data);
2609: free(fp);
1.18 jfb 2610: }
2611:
2612: /*
2613: * rcs_growbuf()
2614: *
2615: * Attempt to grow the internal parse buffer for the RCS file <rf> by
2616: * RCS_BUFEXTSIZE.
2617: * In case of failure, the original buffer is left unmodified.
2618: * Returns 0 on success, or -1 on failure.
2619: */
2620: static int
2621: rcs_growbuf(RCSFILE *rf)
2622: {
2623: void *tmp;
2624: struct rcs_pdata *pdp = (struct rcs_pdata *)rf->rf_pdata;
2625:
2626: tmp = realloc(pdp->rp_buf, pdp->rp_blen + RCS_BUFEXTSIZE);
2627: if (tmp == NULL) {
1.50 jfb 2628: rcs_errno = RCS_ERR_ERRNO;
1.18 jfb 2629: cvs_log(LP_ERRNO, "failed to grow RCS parse buffer");
2630: return (-1);
2631: }
2632:
2633: pdp->rp_buf = (char *)tmp;
2634: pdp->rp_blen += RCS_BUFEXTSIZE;
2635: pdp->rp_bufend = pdp->rp_buf + pdp->rp_blen - 1;
1.42 jfb 2636:
2637: return (0);
2638: }
2639:
2640: /*
2641: * rcs_strprint()
2642: *
2643: * Output an RCS string <str> of size <slen> to the stream <stream>. Any
2644: * '@' characters are escaped. Otherwise, the string can contain arbitrary
2645: * binary data.
2646: */
2647: static int
2648: rcs_strprint(const u_char *str, size_t slen, FILE *stream)
2649: {
2650: const u_char *ap, *ep, *sp;
2651: size_t ret;
1.52 jfb 2652:
2653: if (slen == 0)
2654: return (0);
1.42 jfb 2655:
2656: ep = str + slen - 1;
2657:
2658: for (sp = str; sp <= ep;) {
2659: ap = memchr(sp, '@', ep - sp);
2660: if (ap == NULL)
2661: ap = ep;
2662: ret = fwrite(sp, sizeof(u_char), ap - sp + 1, stream);
2663:
2664: if (*ap == '@')
2665: putc('@', stream);
2666: sp = ap + 1;
1.63 joris 2667: }
2668:
2669: return (0);
2670: }
2671:
2672: /*
2673: * rcs_expand_keywords()
2674: *
2675: * Expand any RCS keywords in <line> into <out>
2676: */
2677: static int
2678: rcs_expand_keywords(char *rcsfile, struct rcs_delta *rdp, char *line, char *out,
2679: size_t len, int mode)
2680: {
2681: int kwtype;
2682: u_int i, j, found;
2683: char *c, *kwstr, *start;
2684: char expbuf[128], buf[128];
2685:
2686: i = 0;
2687:
2688: /*
2689: * Keyword formats:
2690: * $Keyword$
2691: * $Keyword: value$
2692: */
2693: memset(out, '\0', len);
2694: for (c = line; *c != '\0' && i < len; *c++) {
2695: out[i++] = *c;
2696: if (*c == '$') {
2697: /* remember start of this possible keyword */
2698: start = c;
2699:
2700: /* first following character has to be alphanumeric */
2701: *c++;
2702: if (!isalpha(*c)) {
2703: c = start;
2704: continue;
2705: }
2706:
2707: /* look for any matching keywords */
2708: found = 0;
2709: for (j = 0; j < RCS_NKWORDS; j++) {
2710: if (!strncmp(c, rcs_expkw[j].kw_str,
2711: strlen(rcs_expkw[j].kw_str))) {
2712: found = 1;
2713: kwstr = rcs_expkw[j].kw_str;
2714: kwtype = rcs_expkw[j].kw_type;
2715: break;
2716: }
2717: }
2718:
2719: /* unknown keyword, continue looking */
2720: if (found == 0) {
2721: c = start;
2722: continue;
2723: }
2724:
2725: /* next character has to be ':' or '$' */
2726: c += strlen(kwstr);
2727: if (*c != ':' && *c != '$') {
2728: c = start;
2729: continue;
2730: }
2731:
2732: /*
2733: * if the next character was ':' we need to look for
2734: * an '$' before the end of the line to be sure it is
2735: * in fact a keyword.
2736: */
2737: if (*c == ':') {
2738: while (*c++) {
2739: if (*c == '$' || *c == '\n')
2740: break;
2741: }
2742:
2743: if (*c != '$') {
2744: c = start;
2745: continue;
2746: }
2747: }
2748:
2749: /* start constructing the expansion */
2750: expbuf[0] = '\0';
2751:
2752: if (mode & RCS_KWEXP_NAME) {
2753: strlcat(expbuf, "$", sizeof(expbuf));
2754: strlcat(expbuf, kwstr, sizeof(expbuf));
2755: if (mode & RCS_KWEXP_VAL)
2756: strlcat(expbuf, ": ", sizeof(expbuf));
2757: }
2758:
2759: /*
2760: * order matters because of RCS_KW_ID and RCS_KW_HEADER here
2761: */
2762: if (mode & RCS_KWEXP_VAL) {
2763: if (kwtype & RCS_KW_RCSFILE) {
2764: if (!(kwtype & RCS_KW_FULLPATH))
2765: strlcat(expbuf, basename(rcsfile),
2766: sizeof(expbuf));
2767: else
2768: strlcat(expbuf, rcsfile,
2769: sizeof(expbuf));
2770: strlcat(expbuf, " ", sizeof(expbuf));
2771: }
2772:
2773: if (kwtype & RCS_KW_REVISION) {
2774: rcsnum_tostr(rdp->rd_num, buf, sizeof(buf));
2775: strlcat(buf, " ", sizeof(buf));
2776: strlcat(expbuf, buf, sizeof(expbuf));
2777: }
2778:
2779: if (kwtype & RCS_KW_DATE) {
2780: strftime(buf, sizeof(buf),
2781: "%Y/%m/%d %H:%M:%S ", &rdp->rd_date);
2782: strlcat(expbuf, buf, sizeof(expbuf));
2783: }
2784:
2785: if (kwtype & RCS_KW_AUTHOR) {
2786: strlcat(expbuf, rdp->rd_author,
2787: sizeof(expbuf));
2788: strlcat(expbuf, " ", sizeof(expbuf));
2789: }
2790:
2791: if (kwtype & RCS_KW_STATE) {
2792: strlcat(expbuf, rdp->rd_state,
2793: sizeof(expbuf));
2794: strlcat(expbuf, " ", sizeof(expbuf));
2795: }
2796:
2797: /* order does not matter anymore below */
2798: if (kwtype & RCS_KW_LOG)
2799: strlcat(expbuf, " ", sizeof(expbuf));
2800:
2801: if (kwtype & RCS_KW_SOURCE) {
2802: strlcat(expbuf, rcsfile, sizeof(expbuf));
2803: strlcat(expbuf, " ", sizeof(expbuf));
2804: }
2805:
2806: if (kwtype & RCS_KW_NAME)
2807: strlcat(expbuf, " ", sizeof(expbuf));
2808: }
2809:
2810: /* end the expansion */
2811: if (mode & RCS_KWEXP_NAME)
2812: strlcat(expbuf, "$", sizeof(expbuf));
2813:
2814: out[--i] = '\0';
2815: strlcat(out, expbuf, len);
2816: i += strlen(expbuf);
2817: }
1.42 jfb 2818: }
1.18 jfb 2819:
2820: return (0);
1.1 jfb 2821: }
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