Annotation of src/usr.bin/cvs/rcs.c, Revision 1.83
1.83 ! joris 1: /* $OpenBSD: rcs.c,v 1.82 2005/10/09 16:14:23 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>
1.72 niallo 32: #include <fcntl.h>
1.63 joris 33: #include <libgen.h>
1.52 jfb 34: #include <pwd.h>
1.55 xsa 35: #include <stdarg.h>
1.1 jfb 36: #include <stdio.h>
37: #include <stdlib.h>
38: #include <string.h>
1.55 xsa 39: #include <unistd.h>
1.1 jfb 40:
1.55 xsa 41: #include "log.h"
1.1 jfb 42: #include "rcs.h"
1.81 niallo 43: #include "diff.h"
1.39 joris 44: #include "strtab.h"
1.1 jfb 45:
1.57 xsa 46: #define RCS_BUFSIZE 16384
47: #define RCS_BUFEXTSIZE 8192
1.1 jfb 48:
49:
50: /* RCS token types */
1.57 xsa 51: #define RCS_TOK_ERR -1
52: #define RCS_TOK_EOF 0
53: #define RCS_TOK_NUM 1
54: #define RCS_TOK_ID 2
55: #define RCS_TOK_STRING 3
56: #define RCS_TOK_SCOLON 4
57: #define RCS_TOK_COLON 5
58:
59:
60: #define RCS_TOK_HEAD 8
61: #define RCS_TOK_BRANCH 9
62: #define RCS_TOK_ACCESS 10
63: #define RCS_TOK_SYMBOLS 11
64: #define RCS_TOK_LOCKS 12
65: #define RCS_TOK_COMMENT 13
66: #define RCS_TOK_EXPAND 14
67: #define RCS_TOK_DATE 15
68: #define RCS_TOK_AUTHOR 16
69: #define RCS_TOK_STATE 17
70: #define RCS_TOK_NEXT 18
71: #define RCS_TOK_BRANCHES 19
72: #define RCS_TOK_DESC 20
73: #define RCS_TOK_LOG 21
74: #define RCS_TOK_TEXT 22
75: #define RCS_TOK_STRICT 23
1.1 jfb 76:
1.57 xsa 77: #define RCS_ISKEY(t) (((t) >= RCS_TOK_HEAD) && ((t) <= RCS_TOK_BRANCHES))
1.1 jfb 78:
79:
1.57 xsa 80: #define RCS_NOSCOL 0x01 /* no terminating semi-colon */
81: #define RCS_VOPT 0x02 /* value is optional */
1.1 jfb 82:
83:
84: /* opaque parse data */
85: struct rcs_pdata {
1.57 xsa 86: u_int rp_lines;
1.1 jfb 87:
1.57 xsa 88: char *rp_buf;
89: size_t rp_blen;
90: char *rp_bufend;
91: size_t rp_tlen;
1.1 jfb 92:
93: /* pushback token buffer */
1.57 xsa 94: char rp_ptok[128];
95: int rp_pttype; /* token type, RCS_TOK_ERR if no token */
1.1 jfb 96:
1.57 xsa 97: FILE *rp_file;
1.1 jfb 98: };
99:
100:
101: struct rcs_line {
1.57 xsa 102: char *rl_line;
103: int rl_lineno;
104: TAILQ_ENTRY(rcs_line) rl_list;
1.1 jfb 105: };
1.5 vincent 106: TAILQ_HEAD(rcs_tqh, rcs_line);
1.1 jfb 107:
108: struct rcs_foo {
1.57 xsa 109: int rl_nblines;
110: char *rl_data;
111: struct rcs_tqh rl_lines;
1.1 jfb 112: };
113:
1.57 xsa 114: #define RCS_TOKSTR(rfp) ((struct rcs_pdata *)rfp->rf_pdata)->rp_buf
115: #define RCS_TOKLEN(rfp) ((struct rcs_pdata *)rfp->rf_pdata)->rp_tlen
1.1 jfb 116:
117:
1.47 jfb 118:
119: /* invalid characters in RCS symbol names */
1.49 jfb 120: static const char rcs_sym_invch[] = RCS_SYM_INVALCHAR;
1.47 jfb 121:
1.51 jfb 122:
123: /* comment leaders, depending on the file's suffix */
124: static const struct rcs_comment {
1.57 xsa 125: const char *rc_suffix;
126: const char *rc_cstr;
1.51 jfb 127: } rcs_comments[] = {
128: { "1", ".\\\" " },
129: { "2", ".\\\" " },
130: { "3", ".\\\" " },
131: { "4", ".\\\" " },
132: { "5", ".\\\" " },
133: { "6", ".\\\" " },
134: { "7", ".\\\" " },
135: { "8", ".\\\" " },
136: { "9", ".\\\" " },
137: { "a", "-- " }, /* Ada */
138: { "ada", "-- " },
139: { "adb", "-- " },
140: { "asm", ";; " }, /* assembler (MS-DOS) */
141: { "ads", "-- " }, /* Ada */
142: { "bat", ":: " }, /* batch (MS-DOS) */
143: { "body", "-- " }, /* Ada */
144: { "c", " * " }, /* C */
145: { "c++", "// " }, /* C++ */
146: { "cc", "// " },
147: { "cpp", "// " },
148: { "cxx", "// " },
149: { "m", "// " }, /* Objective-C */
150: { "cl", ";;; " }, /* Common Lisp */
151: { "cmd", ":: " }, /* command (OS/2) */
152: { "cmf", "c " }, /* CM Fortran */
153: { "csh", "# " }, /* shell */
154: { "e", "# " }, /* efl */
155: { "epsf", "% " }, /* encapsulated postscript */
156: { "epsi", "% " }, /* encapsulated postscript */
157: { "el", "; " }, /* Emacs Lisp */
158: { "f", "c " }, /* Fortran */
159: { "for", "c " },
160: { "h", " * " }, /* C-header */
161: { "hh", "// " }, /* C++ header */
162: { "hpp", "// " },
163: { "hxx", "// " },
164: { "in", "# " }, /* for Makefile.in */
165: { "l", " * " }, /* lex */
166: { "mac", ";; " }, /* macro (DEC-10, MS-DOS, PDP-11, VMS, etc) */
167: { "mak", "# " }, /* makefile, e.g. Visual C++ */
168: { "me", ".\\\" " }, /* me-macros t/nroff */
169: { "ml", "; " }, /* mocklisp */
170: { "mm", ".\\\" " }, /* mm-macros t/nroff */
171: { "ms", ".\\\" " }, /* ms-macros t/nroff */
172: { "man", ".\\\" " }, /* man-macros t/nroff */
173: { "p", " * " }, /* pascal */
174: { "pas", " * " },
1.52 jfb 175: { "pl", "# " }, /* Perl (conflict with Prolog) */
176: { "pm", "# " }, /* Perl module */
1.51 jfb 177: { "ps", "% " }, /* postscript */
178: { "psw", "% " }, /* postscript wrap */
179: { "pswm", "% " }, /* postscript wrap */
180: { "r", "# " }, /* ratfor */
181: { "rc", " * " }, /* Microsoft Windows resource file */
182: { "red", "% " }, /* psl/rlisp */
183: { "sh", "# " }, /* shell */
184: { "sl", "% " }, /* psl */
185: { "spec", "-- " }, /* Ada */
186: { "tex", "% " }, /* tex */
187: { "y", " * " }, /* yacc */
188: { "ye", " * " }, /* yacc-efl */
189: { "yr", " * " }, /* yacc-ratfor */
190: };
191:
1.57 xsa 192: #define NB_COMTYPES (sizeof(rcs_comments)/sizeof(rcs_comments[0]))
1.51 jfb 193:
1.33 jfb 194: #ifdef notyet
1.20 jfb 195: static struct rcs_kfl {
1.57 xsa 196: char rk_char;
197: int rk_val;
1.20 jfb 198: } rcs_kflags[] = {
199: { 'k', RCS_KWEXP_NAME },
200: { 'v', RCS_KWEXP_VAL },
201: { 'l', RCS_KWEXP_LKR },
202: { 'o', RCS_KWEXP_OLD },
203: { 'b', RCS_KWEXP_NONE },
204: };
1.33 jfb 205: #endif
1.20 jfb 206:
1.1 jfb 207: static struct rcs_key {
1.57 xsa 208: char rk_str[16];
209: int rk_id;
210: int rk_val;
211: int rk_flags;
1.1 jfb 212: } rcs_keys[] = {
213: { "access", RCS_TOK_ACCESS, RCS_TOK_ID, RCS_VOPT },
1.41 jfb 214: { "author", RCS_TOK_AUTHOR, RCS_TOK_ID, 0 },
1.1 jfb 215: { "branch", RCS_TOK_BRANCH, RCS_TOK_NUM, RCS_VOPT },
216: { "branches", RCS_TOK_BRANCHES, RCS_TOK_NUM, RCS_VOPT },
217: { "comment", RCS_TOK_COMMENT, RCS_TOK_STRING, RCS_VOPT },
218: { "date", RCS_TOK_DATE, RCS_TOK_NUM, 0 },
219: { "desc", RCS_TOK_DESC, RCS_TOK_STRING, RCS_NOSCOL },
220: { "expand", RCS_TOK_EXPAND, RCS_TOK_STRING, RCS_VOPT },
221: { "head", RCS_TOK_HEAD, RCS_TOK_NUM, RCS_VOPT },
222: { "locks", RCS_TOK_LOCKS, RCS_TOK_ID, 0 },
223: { "log", RCS_TOK_LOG, RCS_TOK_STRING, RCS_NOSCOL },
224: { "next", RCS_TOK_NEXT, RCS_TOK_NUM, RCS_VOPT },
1.41 jfb 225: { "state", RCS_TOK_STATE, RCS_TOK_ID, RCS_VOPT },
1.1 jfb 226: { "strict", RCS_TOK_STRICT, 0, 0, },
227: { "symbols", RCS_TOK_SYMBOLS, 0, 0 },
228: { "text", RCS_TOK_TEXT, RCS_TOK_STRING, RCS_NOSCOL },
229: };
230:
1.57 xsa 231: #define RCS_NKEYS (sizeof(rcs_keys)/sizeof(rcs_keys[0]))
1.1 jfb 232:
1.33 jfb 233: /*
234: * Keyword expansion table
235: */
1.63 joris 236: #define RCS_KW_AUTHOR 0x1000
237: #define RCS_KW_DATE 0x2000
238: #define RCS_KW_LOG 0x4000
239: #define RCS_KW_NAME 0x8000
240: #define RCS_KW_RCSFILE 0x0100
241: #define RCS_KW_REVISION 0x0200
242: #define RCS_KW_SOURCE 0x0400
243: #define RCS_KW_STATE 0x0800
244: #define RCS_KW_FULLPATH 0x0010
245:
246: #define RCS_KW_ID \
247: (RCS_KW_RCSFILE | RCS_KW_REVISION | RCS_KW_DATE \
248: | RCS_KW_AUTHOR | RCS_KW_STATE)
249:
250: #define RCS_KW_HEADER (RCS_KW_ID | RCS_KW_FULLPATH)
251:
1.33 jfb 252: static struct rcs_kw {
1.57 xsa 253: char kw_str[16];
1.63 joris 254: int kw_type;
1.33 jfb 255: } rcs_expkw[] = {
1.63 joris 256: { "Author", RCS_KW_AUTHOR },
257: { "Date", RCS_KW_DATE },
258: { "Header", RCS_KW_HEADER },
259: { "Id", RCS_KW_ID },
260: { "Log", RCS_KW_LOG },
261: { "Name", RCS_KW_NAME },
262: { "RCSfile", RCS_KW_RCSFILE },
263: { "Revision", RCS_KW_REVISION },
264: { "Source", RCS_KW_SOURCE },
265: { "State", RCS_KW_STATE },
1.33 jfb 266: };
1.63 joris 267:
268: #define RCS_NKWORDS (sizeof(rcs_expkw)/sizeof(rcs_expkw[0]))
1.33 jfb 269:
1.32 jfb 270: static const char *rcs_errstrs[] = {
271: "No error",
272: "No such entry",
273: "Duplicate entry found",
274: "Bad RCS number",
1.48 jfb 275: "Invalid RCS symbol",
276: "Parse error",
1.32 jfb 277: };
278:
279: #define RCS_NERR (sizeof(rcs_errstrs)/sizeof(rcs_errstrs[0]))
280:
281:
282: int rcs_errno = RCS_ERR_NOERR;
283:
1.1 jfb 284:
1.57 xsa 285: static int rcs_write(RCSFILE *);
286: static int rcs_parse(RCSFILE *);
287: static int rcs_parse_admin(RCSFILE *);
288: static int rcs_parse_delta(RCSFILE *);
289: static int rcs_parse_deltatext(RCSFILE *);
290:
291: static int rcs_parse_access(RCSFILE *);
292: static int rcs_parse_symbols(RCSFILE *);
293: static int rcs_parse_locks(RCSFILE *);
294: static int rcs_parse_branches(RCSFILE *, struct rcs_delta *);
295: static void rcs_freedelta(struct rcs_delta *);
296: static void rcs_freepdata(struct rcs_pdata *);
297: static int rcs_gettok(RCSFILE *);
298: static int rcs_pushtok(RCSFILE *, const char *, int);
299: static int rcs_growbuf(RCSFILE *);
300: static int rcs_patch_lines(struct rcs_foo *, struct rcs_foo *);
301: static int rcs_strprint(const u_char *, size_t, FILE *);
302:
1.63 joris 303: static int rcs_expand_keywords(char *, struct rcs_delta *, char *, char *,
304: size_t, int);
1.57 xsa 305: static struct rcs_delta *rcs_findrev(RCSFILE *, const RCSNUM *);
306: static struct rcs_foo *rcs_splitlines(const char *);
307: static void rcs_freefoo(struct rcs_foo *);
1.26 jfb 308:
1.1 jfb 309: /*
310: * rcs_open()
311: *
312: * Open a file containing RCS-formatted information. The file's path is
1.26 jfb 313: * given in <path>, and the opening flags are given in <flags>, which is either
314: * RCS_READ, RCS_WRITE, or RCS_RDWR. If the open requests write access and
315: * the file does not exist, the RCS_CREATE flag must also be given, in which
316: * case it will be created with the mode specified in a third argument of
317: * type mode_t. If the file exists and RCS_CREATE is passed, the open will
318: * fail.
1.1 jfb 319: * Returns a handle to the opened file on success, or NULL on failure.
320: */
1.60 xsa 321: RCSFILE *
1.26 jfb 322: rcs_open(const char *path, int flags, ...)
1.1 jfb 323: {
1.26 jfb 324: int ret;
325: mode_t fmode;
1.1 jfb 326: RCSFILE *rfp;
327: struct stat st;
1.26 jfb 328: va_list vap;
329:
330: fmode = 0;
331: flags &= 0xffff; /* ditch any internal flags */
1.1 jfb 332:
1.26 jfb 333: if (((ret = stat(path, &st)) == -1) && (errno == ENOENT)) {
334: if (flags & RCS_CREATE) {
335: va_start(vap, flags);
336: fmode = va_arg(vap, mode_t);
337: va_end(vap);
338: } else {
1.50 jfb 339: rcs_errno = RCS_ERR_ERRNO;
1.26 jfb 340: cvs_log(LP_ERR, "RCS file `%s' does not exist", path);
341: return (NULL);
342: }
343: } else if ((ret == 0) && (flags & RCS_CREATE)) {
344: cvs_log(LP_ERR, "RCS file `%s' exists", path);
1.1 jfb 345: return (NULL);
346: }
347:
1.26 jfb 348: if ((rfp = (RCSFILE *)malloc(sizeof(*rfp))) == NULL) {
1.1 jfb 349: cvs_log(LP_ERRNO, "failed to allocate RCS file structure");
1.50 jfb 350: rcs_errno = RCS_ERR_ERRNO;
1.1 jfb 351: return (NULL);
352: }
353: memset(rfp, 0, sizeof(*rfp));
354:
1.26 jfb 355: if ((rfp->rf_path = strdup(path)) == NULL) {
1.50 jfb 356: rcs_errno = RCS_ERR_ERRNO;
1.1 jfb 357: cvs_log(LP_ERRNO, "failed to duplicate RCS file path");
1.26 jfb 358: free(rfp);
1.1 jfb 359: return (NULL);
360: }
361:
362: rfp->rf_ref = 1;
1.26 jfb 363: rfp->rf_flags = flags | RCS_SLOCK;
364: rfp->rf_mode = fmode;
1.1 jfb 365:
366: TAILQ_INIT(&(rfp->rf_delta));
1.29 jfb 367: TAILQ_INIT(&(rfp->rf_access));
1.1 jfb 368: TAILQ_INIT(&(rfp->rf_symbols));
369: TAILQ_INIT(&(rfp->rf_locks));
370:
1.26 jfb 371: if (rfp->rf_flags & RCS_CREATE) {
372: } else if (rcs_parse(rfp) < 0) {
1.1 jfb 373: rcs_close(rfp);
374: return (NULL);
375: }
376:
377: return (rfp);
378: }
379:
380: /*
381: * rcs_close()
382: *
383: * Close an RCS file handle.
384: */
385: void
386: rcs_close(RCSFILE *rfp)
387: {
388: struct rcs_delta *rdp;
1.71 moritz 389: struct rcs_access *rap;
1.13 jfb 390: struct rcs_lock *rlp;
391: struct rcs_sym *rsp;
1.1 jfb 392:
393: if (rfp->rf_ref > 1) {
394: rfp->rf_ref--;
395: return;
396: }
397:
1.26 jfb 398: if ((rfp->rf_flags & RCS_WRITE) && !(rfp->rf_flags & RCS_SYNCED))
399: rcs_write(rfp);
400:
1.1 jfb 401: while (!TAILQ_EMPTY(&(rfp->rf_delta))) {
402: rdp = TAILQ_FIRST(&(rfp->rf_delta));
403: TAILQ_REMOVE(&(rfp->rf_delta), rdp, rd_list);
404: rcs_freedelta(rdp);
1.71 moritz 405: }
406:
407: while (!TAILQ_EMPTY(&(rfp->rf_access))) {
408: rap = TAILQ_FIRST(&(rfp->rf_access));
409: TAILQ_REMOVE(&(rfp->rf_access), rap, ra_list);
410: cvs_strfree(rap->ra_name);
411: free(rap);
1.1 jfb 412: }
413:
1.13 jfb 414: while (!TAILQ_EMPTY(&(rfp->rf_symbols))) {
415: rsp = TAILQ_FIRST(&(rfp->rf_symbols));
416: TAILQ_REMOVE(&(rfp->rf_symbols), rsp, rs_list);
417: rcsnum_free(rsp->rs_num);
1.39 joris 418: cvs_strfree(rsp->rs_name);
1.13 jfb 419: free(rsp);
420: }
421:
422: while (!TAILQ_EMPTY(&(rfp->rf_locks))) {
423: rlp = TAILQ_FIRST(&(rfp->rf_locks));
424: TAILQ_REMOVE(&(rfp->rf_locks), rlp, rl_list);
425: rcsnum_free(rlp->rl_num);
1.77 joris 426: cvs_strfree(rlp->rl_name);
1.13 jfb 427: free(rlp);
428: }
429:
1.1 jfb 430: if (rfp->rf_head != NULL)
431: rcsnum_free(rfp->rf_head);
1.11 joris 432: if (rfp->rf_branch != NULL)
433: rcsnum_free(rfp->rf_branch);
1.1 jfb 434:
435: if (rfp->rf_path != NULL)
436: free(rfp->rf_path);
437: if (rfp->rf_comment != NULL)
1.39 joris 438: cvs_strfree(rfp->rf_comment);
1.1 jfb 439: if (rfp->rf_expand != NULL)
1.39 joris 440: cvs_strfree(rfp->rf_expand);
1.1 jfb 441: if (rfp->rf_desc != NULL)
1.39 joris 442: cvs_strfree(rfp->rf_desc);
1.1 jfb 443: free(rfp);
444: }
445:
446: /*
447: * rcs_write()
448: *
449: * Write the contents of the RCS file handle <rfp> to disk in the file whose
450: * path is in <rf_path>.
451: * Returns 0 on success, or -1 on failure.
452: */
1.27 jfb 453: static int
1.1 jfb 454: rcs_write(RCSFILE *rfp)
455: {
456: FILE *fp;
1.72 niallo 457: char buf[1024], numbuf[64], fn[19] = "";
458: void *bp;
1.29 jfb 459: struct rcs_access *ap;
1.1 jfb 460: struct rcs_sym *symp;
1.46 jfb 461: struct rcs_branch *brp;
1.1 jfb 462: struct rcs_delta *rdp;
1.75 joris 463: struct rcs_lock *lkp;
1.72 niallo 464: ssize_t nread;
465: int fd, from_fd, to_fd;
1.75 joris 466:
1.72 niallo 467: from_fd = to_fd = fd = -1;
1.1 jfb 468:
1.28 jfb 469: if (rfp->rf_flags & RCS_SYNCED)
1.1 jfb 470: return (0);
471:
1.72 niallo 472: strlcpy(fn, "/tmp/rcs.XXXXXXXXXX", sizeof(fn));
473: if ((fd = mkstemp(fn)) == -1 ||
474: (fp = fdopen(fd, "w+")) == NULL) {
475: if (fd != -1) {
476: unlink(fn);
477: close(fd);
478: }
1.50 jfb 479: rcs_errno = RCS_ERR_ERRNO;
1.72 niallo 480: cvs_log(LP_ERRNO, "failed to open temp RCS output file `%s'",
481: fn);
1.1 jfb 482: return (-1);
483: }
484:
1.28 jfb 485: if (rfp->rf_head != NULL)
486: rcsnum_tostr(rfp->rf_head, numbuf, sizeof(numbuf));
487: else
488: numbuf[0] = '\0';
489:
1.1 jfb 490: fprintf(fp, "head\t%s;\n", numbuf);
1.35 jfb 491:
492: if (rfp->rf_branch != NULL) {
493: rcsnum_tostr(rfp->rf_branch, numbuf, sizeof(numbuf));
494: fprintf(fp, "branch\t%s;\n", numbuf);
495: }
496:
1.29 jfb 497: fputs("access", fp);
498: TAILQ_FOREACH(ap, &(rfp->rf_access), ra_list) {
499: fprintf(fp, "\n\t%s", ap->ra_name);
500: }
501: fputs(";\n", fp);
1.1 jfb 502:
503: fprintf(fp, "symbols\n");
504: TAILQ_FOREACH(symp, &(rfp->rf_symbols), rs_list) {
505: rcsnum_tostr(symp->rs_num, numbuf, sizeof(numbuf));
506: snprintf(buf, sizeof(buf), "%s:%s", symp->rs_name, numbuf);
507: fprintf(fp, "\t%s", buf);
508: if (symp != TAILQ_LAST(&(rfp->rf_symbols), rcs_slist))
509: fputc('\n', fp);
510: }
511: fprintf(fp, ";\n");
512:
1.75 joris 513: fprintf(fp, "locks");
514: TAILQ_FOREACH(lkp, &(rfp->rf_locks), rl_list) {
515: rcsnum_tostr(lkp->rl_num, numbuf, sizeof(numbuf));
516: fprintf(fp, "\n\t%s:%s", lkp->rl_name, numbuf);
517: if (lkp != TAILQ_LAST(&(rfp->rf_locks), rcs_llist))
518: fprintf(fp, ";");
519: }
520:
521: fprintf(fp, ";");
1.1 jfb 522:
1.26 jfb 523: if (rfp->rf_flags & RCS_SLOCK)
1.1 jfb 524: fprintf(fp, " strict;");
525: fputc('\n', fp);
526:
1.42 jfb 527: if (rfp->rf_comment != NULL) {
528: fputs("comment\t@", fp);
1.58 xsa 529: rcs_strprint((const u_char *)rfp->rf_comment,
530: strlen(rfp->rf_comment), fp);
1.42 jfb 531: fputs("@;\n", fp);
532: }
1.1 jfb 533:
1.42 jfb 534: if (rfp->rf_expand != NULL) {
535: fputs("expand @", fp);
1.58 xsa 536: rcs_strprint((const u_char *)rfp->rf_expand,
537: strlen(rfp->rf_expand), fp);
1.42 jfb 538: fputs("@;\n", fp);
539: }
1.1 jfb 540:
1.46 jfb 541: fputs("\n\n", fp);
1.1 jfb 542:
543: TAILQ_FOREACH(rdp, &(rfp->rf_delta), rd_list) {
544: fprintf(fp, "%s\n", rcsnum_tostr(rdp->rd_num, numbuf,
545: sizeof(numbuf)));
546: fprintf(fp, "date\t%d.%02d.%02d.%02d.%02d.%02d;",
1.44 jfb 547: rdp->rd_date.tm_year + 1900, rdp->rd_date.tm_mon + 1,
1.1 jfb 548: rdp->rd_date.tm_mday, rdp->rd_date.tm_hour,
549: rdp->rd_date.tm_min, rdp->rd_date.tm_sec);
550: fprintf(fp, "\tauthor %s;\tstate %s;\n",
551: rdp->rd_author, rdp->rd_state);
1.46 jfb 552: fputs("branches", fp);
553: TAILQ_FOREACH(brp, &(rdp->rd_branches), rb_list) {
554: fprintf(fp, " %s", rcsnum_tostr(brp->rb_num, numbuf,
555: sizeof(numbuf)));
556: }
557: fputs(";\n", fp);
1.1 jfb 558: fprintf(fp, "next\t%s;\n\n", rcsnum_tostr(rdp->rd_next,
559: numbuf, sizeof(numbuf)));
560: }
561:
1.42 jfb 562: fputs("\ndesc\n@", fp);
563: if (rfp->rf_desc != NULL)
1.58 xsa 564: rcs_strprint((const u_char *)rfp->rf_desc,
565: strlen(rfp->rf_desc), fp);
1.42 jfb 566: fputs("@\n\n", fp);
1.1 jfb 567:
568: /* deltatexts */
569: TAILQ_FOREACH(rdp, &(rfp->rf_delta), rd_list) {
570: fprintf(fp, "\n%s\n", rcsnum_tostr(rdp->rd_num, numbuf,
571: sizeof(numbuf)));
1.42 jfb 572: fputs("log\n@", fp);
1.58 xsa 573: rcs_strprint((const u_char *)rdp->rd_log,
574: strlen(rdp->rd_log), fp);
1.42 jfb 575: fputs("@\ntext\n@", fp);
576: rcs_strprint(rdp->rd_text, rdp->rd_tlen, fp);
577: fputs("@\n\n", fp);
1.1 jfb 578: }
579: fclose(fp);
1.73 joris 580:
1.72 niallo 581: /*
582: * We try to use rename() to atomically put the new file in place.
583: * If that fails, we try a copy.
584: */
585: if (rename(fn, rfp->rf_path) == -1) {
586: if (errno == EXDEV) {
587: /* rename() not supported so we have to copy. */
588: if ((chmod(rfp->rf_path, S_IWUSR) == -1)
589: && !(rfp->rf_flags & RCS_CREATE)) {
590: cvs_log(LP_ERRNO, "failed to chmod `%s'",
591: rfp->rf_path);
592: return (-1);
593: }
1.73 joris 594:
1.72 niallo 595: if ((from_fd = open(fn, O_RDONLY)) == -1) {
596: cvs_log(LP_ERRNO, "failed to open `%s'",
597: rfp->rf_path);
598: return (-1);
599: }
1.73 joris 600:
1.80 reyk 601: if ((to_fd = open(rfp->rf_path,
602: O_WRONLY|O_TRUNC|O_CREAT)) == -1) {
1.73 joris 603: cvs_log(LP_ERRNO, "failed to open `%s'", fn);
1.72 niallo 604: close(from_fd);
605: return (-1);
606: }
1.73 joris 607:
1.72 niallo 608: if ((bp = malloc(MAXBSIZE)) == NULL) {
1.73 joris 609: cvs_log(LP_ERRNO, "failed to allocate memory");
1.72 niallo 610: close(from_fd);
611: close(to_fd);
612: return (-1);
613: }
1.73 joris 614:
1.72 niallo 615: while ((nread = read(from_fd, bp, MAXBSIZE)) > 0) {
616: if (write(to_fd, bp, nread) != nread)
617: goto err;
618: }
1.73 joris 619:
1.72 niallo 620: if (nread < 0) {
621: err: if (unlink(rfp->rf_path) == -1)
622: cvs_log(LP_ERRNO,
623: "failed to unlink `%s'",
624: rfp->rf_path);
625: close(from_fd);
626: close(to_fd);
627: free(bp);
628: return (-1);
629: }
1.73 joris 630:
1.72 niallo 631: close(from_fd);
632: close(to_fd);
633: free(bp);
1.73 joris 634:
1.72 niallo 635: if (unlink(fn) == -1) {
636: cvs_log(LP_ERRNO,
1.73 joris 637: "failed to unlink `%s'", fn);
1.72 niallo 638: return (-1);
639: }
640: } else {
641: cvs_log(LP_ERRNO,
642: "failed to access temp RCS output file");
643: return (-1);
644: }
645: }
1.73 joris 646:
1.72 niallo 647: if ((chmod(rfp->rf_path, S_IRUSR|S_IRGRP|S_IROTH) == -1)) {
648: cvs_log(LP_ERRNO, "failed to chmod `%s'",
649: rfp->rf_path);
650: return (-1);
651: }
1.73 joris 652:
1.26 jfb 653: rfp->rf_flags |= RCS_SYNCED;
1.1 jfb 654:
655: return (0);
656: }
657:
658: /*
1.43 jfb 659: * rcs_head_get()
660: *
661: * Retrieve the revision number of the head revision for the RCS file <file>.
662: */
1.60 xsa 663: const RCSNUM *
1.43 jfb 664: rcs_head_get(RCSFILE *file)
665: {
666: return (file->rf_head);
667: }
668:
669: /*
670: * rcs_head_set()
671: *
672: * Set the revision number of the head revision for the RCS file <file> to
673: * <rev>, which must reference a valid revision within the file.
674: */
675: int
676: rcs_head_set(RCSFILE *file, const RCSNUM *rev)
677: {
678: struct rcs_delta *rd;
679:
680: if ((rd = rcs_findrev(file, rev)) == NULL)
681: return (-1);
682:
1.52 jfb 683: if ((file->rf_head == NULL) &&
684: ((file->rf_head = rcsnum_alloc()) == NULL))
685: return (-1);
686:
1.43 jfb 687: if (rcsnum_cpy(rev, file->rf_head, 0) < 0)
688: return (-1);
689:
1.70 moritz 690: file->rf_flags &= ~RCS_SYNCED;
1.43 jfb 691: return (0);
692: }
693:
694:
695: /*
1.35 jfb 696: * rcs_branch_get()
697: *
698: * Retrieve the default branch number for the RCS file <file>.
699: * Returns the number on success. If NULL is returned, then there is no
700: * default branch for this file.
701: */
1.60 xsa 702: const RCSNUM *
1.35 jfb 703: rcs_branch_get(RCSFILE *file)
704: {
705: return (file->rf_branch);
706: }
707:
708: /*
709: * rcs_branch_set()
710: *
711: * Set the default branch for the RCS file <file> to <bnum>.
712: * Returns 0 on success, -1 on failure.
713: */
714: int
715: rcs_branch_set(RCSFILE *file, const RCSNUM *bnum)
716: {
717: if ((file->rf_branch == NULL) &&
718: ((file->rf_branch = rcsnum_alloc()) == NULL))
719: return (-1);
720:
721: if (rcsnum_cpy(bnum, file->rf_branch, 0) < 0) {
722: rcsnum_free(file->rf_branch);
723: file->rf_branch = NULL;
724: return (-1);
725: }
726:
1.70 moritz 727: file->rf_flags &= ~RCS_SYNCED;
1.35 jfb 728: return (0);
729: }
730:
731: /*
1.29 jfb 732: * rcs_access_add()
733: *
734: * Add the login name <login> to the access list for the RCS file <file>.
735: * Returns 0 on success, or -1 on failure.
736: */
737: int
738: rcs_access_add(RCSFILE *file, const char *login)
739: {
740: struct rcs_access *ap;
741:
742: /* first look for duplication */
743: TAILQ_FOREACH(ap, &(file->rf_access), ra_list) {
744: if (strcmp(ap->ra_name, login) == 0) {
1.32 jfb 745: rcs_errno = RCS_ERR_DUPENT;
1.29 jfb 746: return (-1);
747: }
748: }
749:
750: ap = (struct rcs_access *)malloc(sizeof(*ap));
751: if (ap == NULL) {
1.50 jfb 752: rcs_errno = RCS_ERR_ERRNO;
1.29 jfb 753: cvs_log(LP_ERRNO, "failed to allocate RCS access entry");
754: return (-1);
755: }
756:
1.39 joris 757: ap->ra_name = cvs_strdup(login);
1.29 jfb 758: if (ap->ra_name == NULL) {
759: cvs_log(LP_ERRNO, "failed to duplicate user name");
760: free(ap);
761: return (-1);
762: }
763:
764: TAILQ_INSERT_TAIL(&(file->rf_access), ap, ra_list);
765:
766: /* not synced anymore */
767: file->rf_flags &= ~RCS_SYNCED;
768: return (0);
769: }
770:
771: /*
772: * rcs_access_remove()
773: *
774: * Remove an entry with login name <login> from the access list of the RCS
775: * file <file>.
776: * Returns 0 on success, or -1 on failure.
777: */
778: int
779: rcs_access_remove(RCSFILE *file, const char *login)
780: {
781: struct rcs_access *ap;
782:
783: TAILQ_FOREACH(ap, &(file->rf_access), ra_list)
784: if (strcmp(ap->ra_name, login) == 0)
785: break;
786:
787: if (ap == NULL) {
1.32 jfb 788: rcs_errno = RCS_ERR_NOENT;
1.29 jfb 789: return (-1);
790: }
791:
792: TAILQ_REMOVE(&(file->rf_access), ap, ra_list);
1.39 joris 793: cvs_strfree(ap->ra_name);
1.29 jfb 794: free(ap);
795:
796: /* not synced anymore */
797: file->rf_flags &= ~RCS_SYNCED;
798: return (0);
799: }
800:
801: /*
1.26 jfb 802: * rcs_sym_add()
1.1 jfb 803: *
804: * Add a symbol to the list of symbols for the RCS file <rfp>. The new symbol
805: * is named <sym> and is bound to the RCS revision <snum>.
806: * Returns 0 on success, or -1 on failure.
807: */
808: int
1.26 jfb 809: rcs_sym_add(RCSFILE *rfp, const char *sym, RCSNUM *snum)
1.1 jfb 810: {
811: struct rcs_sym *symp;
812:
1.47 jfb 813: if (!rcs_sym_check(sym)) {
814: rcs_errno = RCS_ERR_BADSYM;
1.69 moritz 815: return (-1);
1.47 jfb 816: }
817:
1.1 jfb 818: /* first look for duplication */
819: TAILQ_FOREACH(symp, &(rfp->rf_symbols), rs_list) {
820: if (strcmp(symp->rs_name, sym) == 0) {
1.32 jfb 821: rcs_errno = RCS_ERR_DUPENT;
1.1 jfb 822: return (-1);
823: }
824: }
825:
1.50 jfb 826: if ((symp = (struct rcs_sym *)malloc(sizeof(*symp))) == NULL) {
827: rcs_errno = RCS_ERR_ERRNO;
1.1 jfb 828: cvs_log(LP_ERRNO, "failed to allocate RCS symbol");
829: return (-1);
830: }
831:
1.50 jfb 832: if ((symp->rs_name = cvs_strdup(sym)) == NULL) {
833: rcs_errno = RCS_ERR_ERRNO;
1.10 joris 834: cvs_log(LP_ERRNO, "failed to duplicate symbol");
835: free(symp);
836: return (-1);
837: }
838:
1.50 jfb 839: if ((symp->rs_num = rcsnum_alloc()) == NULL) {
1.39 joris 840: cvs_strfree(symp->rs_name);
1.11 joris 841: free(symp);
842: return (-1);
843: }
1.1 jfb 844: rcsnum_cpy(snum, symp->rs_num, 0);
845:
846: TAILQ_INSERT_HEAD(&(rfp->rf_symbols), symp, rs_list);
847:
848: /* not synced anymore */
1.26 jfb 849: rfp->rf_flags &= ~RCS_SYNCED;
1.1 jfb 850: return (0);
851: }
852:
853: /*
1.27 jfb 854: * rcs_sym_remove()
855: *
856: * Remove the symbol with name <sym> from the symbol list for the RCS file
857: * <file>. If no such symbol is found, the call fails and returns with an
858: * error.
859: * Returns 0 on success, or -1 on failure.
860: */
861: int
862: rcs_sym_remove(RCSFILE *file, const char *sym)
863: {
864: struct rcs_sym *symp;
865:
1.47 jfb 866: if (!rcs_sym_check(sym)) {
867: rcs_errno = RCS_ERR_BADSYM;
1.69 moritz 868: return (-1);
1.47 jfb 869: }
870:
1.27 jfb 871: TAILQ_FOREACH(symp, &(file->rf_symbols), rs_list)
872: if (strcmp(symp->rs_name, sym) == 0)
873: break;
874:
875: if (symp == NULL) {
1.32 jfb 876: rcs_errno = RCS_ERR_NOENT;
1.27 jfb 877: return (-1);
878: }
879:
880: TAILQ_REMOVE(&(file->rf_symbols), symp, rs_list);
1.39 joris 881: cvs_strfree(symp->rs_name);
1.27 jfb 882: rcsnum_free(symp->rs_num);
883: free(symp);
884:
885: /* not synced anymore */
886: file->rf_flags &= ~RCS_SYNCED;
887: return (0);
888: }
889:
890: /*
891: * rcs_sym_getrev()
892: *
893: * Retrieve the RCS revision number associated with the symbol <sym> for the
894: * RCS file <file>. The returned value is a dynamically-allocated copy and
895: * should be freed by the caller once they are done with it.
896: * Returns the RCSNUM on success, or NULL on failure.
897: */
1.60 xsa 898: RCSNUM *
1.27 jfb 899: rcs_sym_getrev(RCSFILE *file, const char *sym)
900: {
901: RCSNUM *num;
902: struct rcs_sym *symp;
903:
1.47 jfb 904: if (!rcs_sym_check(sym)) {
905: rcs_errno = RCS_ERR_BADSYM;
906: return (NULL);
907: }
908:
1.27 jfb 909: num = NULL;
910: TAILQ_FOREACH(symp, &(file->rf_symbols), rs_list)
911: if (strcmp(symp->rs_name, sym) == 0)
912: break;
913:
1.36 jfb 914: if (symp == NULL)
915: rcs_errno = RCS_ERR_NOENT;
916: else if (((num = rcsnum_alloc()) != NULL) &&
1.27 jfb 917: (rcsnum_cpy(symp->rs_num, num, 0) < 0)) {
918: rcsnum_free(num);
919: num = NULL;
920: }
921:
922: return (num);
1.47 jfb 923: }
924:
925: /*
926: * rcs_sym_check()
927: *
928: * Check the RCS symbol name <sym> for any unsupported characters.
929: * Returns 1 if the tag is correct, 0 if it isn't valid.
930: */
931: int
932: rcs_sym_check(const char *sym)
933: {
934: int ret;
935: const char *cp;
936:
937: ret = 1;
938: cp = sym;
939: if (!isalpha(*cp++))
940: return (0);
941:
942: for (; *cp != '\0'; cp++)
943: if (!isgraph(*cp) || (strchr(rcs_sym_invch, *cp) != NULL)) {
944: ret = 0;
945: break;
946: }
947:
948: return (ret);
1.30 jfb 949: }
950:
951: /*
952: * rcs_lock_getmode()
953: *
954: * Retrieve the locking mode of the RCS file <file>.
955: */
956: int
957: rcs_lock_getmode(RCSFILE *file)
958: {
959: return (file->rf_flags & RCS_SLOCK) ? RCS_LOCK_STRICT : RCS_LOCK_LOOSE;
960: }
961:
962: /*
963: * rcs_lock_setmode()
964: *
965: * Set the locking mode of the RCS file <file> to <mode>, which must either
966: * be RCS_LOCK_LOOSE or RCS_LOCK_STRICT.
967: * Returns the previous mode on success, or -1 on failure.
968: */
969: int
970: rcs_lock_setmode(RCSFILE *file, int mode)
971: {
972: int pmode;
973: pmode = rcs_lock_getmode(file);
974:
975: if (mode == RCS_LOCK_STRICT)
976: file->rf_flags |= RCS_SLOCK;
977: else if (mode == RCS_LOCK_LOOSE)
978: file->rf_flags &= ~RCS_SLOCK;
979: else {
980: cvs_log(LP_ERRNO, "invalid lock mode %d", mode);
981: return (-1);
982: }
983:
1.70 moritz 984: file->rf_flags &= ~RCS_SYNCED;
1.30 jfb 985: return (pmode);
1.27 jfb 986: }
987:
988: /*
1.40 jfb 989: * rcs_lock_add()
990: *
991: * Add an RCS lock for the user <user> on revision <rev>.
992: * Returns 0 on success, or -1 on failure.
993: */
994: int
995: rcs_lock_add(RCSFILE *file, const char *user, RCSNUM *rev)
996: {
997: struct rcs_lock *lkp;
998:
999: /* first look for duplication */
1000: TAILQ_FOREACH(lkp, &(file->rf_locks), rl_list) {
1001: if (strcmp(lkp->rl_name, user) == 0) {
1002: rcs_errno = RCS_ERR_DUPENT;
1003: return (-1);
1004: }
1005: }
1006:
1.50 jfb 1007: if ((lkp = (struct rcs_lock *)malloc(sizeof(*lkp))) == NULL) {
1008: rcs_errno = RCS_ERR_ERRNO;
1.40 jfb 1009: cvs_log(LP_ERRNO, "failed to allocate RCS lock");
1010: return (-1);
1011: }
1012:
1013: lkp->rl_name = cvs_strdup(user);
1014: if (lkp->rl_name == NULL) {
1015: cvs_log(LP_ERRNO, "failed to duplicate user name");
1016: free(lkp);
1017: return (-1);
1018: }
1.68 moritz 1019:
1020: if ((lkp->rl_num = rcsnum_alloc()) == NULL) {
1021: cvs_strfree(lkp->rl_name);
1022: free(lkp);
1023: return (-1);
1024: }
1025: rcsnum_cpy(rev, lkp->rl_num, 0);
1.40 jfb 1026:
1027: TAILQ_INSERT_TAIL(&(file->rf_locks), lkp, rl_list);
1028:
1029: /* not synced anymore */
1030: file->rf_flags &= ~RCS_SYNCED;
1031: return (0);
1032:
1033:
1034: }
1035:
1036:
1037: /*
1038: * rcs_lock_remove()
1039: *
1040: * Remove the RCS lock on revision <rev>.
1041: * Returns 0 on success, or -1 on failure.
1042: */
1043: int
1.56 joris 1044: rcs_lock_remove(RCSFILE *file, const RCSNUM *rev)
1.40 jfb 1045: {
1046: struct rcs_lock *lkp;
1047:
1048: TAILQ_FOREACH(lkp, &(file->rf_locks), rl_list)
1049: if (rcsnum_cmp(lkp->rl_num, rev, 0) == 0)
1050: break;
1051:
1052: if (lkp == NULL) {
1053: rcs_errno = RCS_ERR_NOENT;
1054: return (-1);
1055: }
1056:
1057: TAILQ_REMOVE(&(file->rf_locks), lkp, rl_list);
1058: rcsnum_free(lkp->rl_num);
1059: cvs_strfree(lkp->rl_name);
1060: free(lkp);
1061:
1062: /* not synced anymore */
1063: file->rf_flags &= ~RCS_SYNCED;
1064: return (0);
1065: }
1066:
1067: /*
1.27 jfb 1068: * rcs_desc_get()
1069: *
1070: * Retrieve the description for the RCS file <file>.
1071: */
1.57 xsa 1072: const char *
1.27 jfb 1073: rcs_desc_get(RCSFILE *file)
1074: {
1075: return (file->rf_desc);
1076: }
1077:
1078: /*
1079: * rcs_desc_set()
1080: *
1081: * Set the description for the RCS file <file>.
1082: * Returns 0 on success, or -1 on failure.
1083: */
1084: int
1085: rcs_desc_set(RCSFILE *file, const char *desc)
1086: {
1087: char *tmp;
1088:
1.39 joris 1089: if ((tmp = cvs_strdup(desc)) == NULL)
1.27 jfb 1090: return (-1);
1091:
1092: if (file->rf_desc != NULL)
1.39 joris 1093: cvs_strfree(file->rf_desc);
1.27 jfb 1094: file->rf_desc = tmp;
1095: file->rf_flags &= ~RCS_SYNCED;
1096:
1097: return (0);
1.51 jfb 1098: }
1099:
1100: /*
1101: * rcs_comment_lookup()
1102: *
1103: * Lookup the assumed comment leader based on a file's suffix.
1104: * Returns a pointer to the string on success, or NULL on failure.
1105: */
1.57 xsa 1106: const char *
1.51 jfb 1107: rcs_comment_lookup(const char *filename)
1108: {
1109: int i;
1110: const char *sp;
1111:
1112: if ((sp = strrchr(filename, '.')) == NULL) {
1113: rcs_errno = RCS_ERR_NOENT;
1114: return (NULL);
1115: }
1116: sp++;
1117:
1118: for (i = 0; i < (int)NB_COMTYPES; i++)
1119: if (strcmp(rcs_comments[i].rc_suffix, sp) == 0)
1120: return (rcs_comments[i].rc_cstr);
1121: return (NULL);
1.27 jfb 1122: }
1123:
1.33 jfb 1124: /*
1125: * rcs_comment_get()
1126: *
1127: * Retrieve the comment leader for the RCS file <file>.
1128: */
1.57 xsa 1129: const char *
1.33 jfb 1130: rcs_comment_get(RCSFILE *file)
1131: {
1132: return (file->rf_comment);
1133: }
1134:
1135: /*
1136: * rcs_comment_set()
1137: *
1138: * Set the comment leader for the RCS file <file>.
1139: * Returns 0 on success, or -1 on failure.
1140: */
1141: int
1142: rcs_comment_set(RCSFILE *file, const char *comment)
1143: {
1144: char *tmp;
1145:
1.39 joris 1146: if ((tmp = cvs_strdup(comment)) == NULL)
1.33 jfb 1147: return (-1);
1148:
1149: if (file->rf_comment != NULL)
1.39 joris 1150: cvs_strfree(file->rf_comment);
1.33 jfb 1151: file->rf_comment = tmp;
1152: file->rf_flags &= ~RCS_SYNCED;
1153:
1154: return (0);
1155: }
1.40 jfb 1156:
1157: /*
1158: * rcs_tag_resolve()
1159: *
1160: * Retrieve the revision number corresponding to the tag <tag> for the RCS
1161: * file <file>.
1162: */
1.60 xsa 1163: RCSNUM *
1.40 jfb 1164: rcs_tag_resolve(RCSFILE *file, const char *tag)
1165: {
1166: RCSNUM *num;
1167:
1168: if ((num = rcsnum_parse(tag)) == NULL) {
1169: num = rcs_sym_getrev(file, tag);
1170: }
1171:
1172: return (num);
1173: }
1174:
1.27 jfb 1175:
1176: /*
1.1 jfb 1177: * rcs_patch()
1178: *
1179: * Apply an RCS-format patch pointed to by <patch> to the file contents
1180: * found in <data>.
1181: * Returns 0 on success, or -1 on failure.
1182: */
1183: BUF*
1184: rcs_patch(const char *data, const char *patch)
1185: {
1.5 vincent 1186: struct rcs_foo *dlines, *plines;
1187: struct rcs_line *lp;
1.1 jfb 1188: size_t len;
1.5 vincent 1189: int lineno;
1.1 jfb 1190: BUF *res;
1191:
1192: len = strlen(data);
1193: res = cvs_buf_alloc(len, BUF_AUTOEXT);
1194: if (res == NULL)
1195: return (NULL);
1196:
1197: dlines = rcs_splitlines(data);
1.17 jfb 1198: if (dlines == NULL) {
1199: cvs_buf_free(res);
1.1 jfb 1200: return (NULL);
1.17 jfb 1201: }
1.5 vincent 1202:
1.1 jfb 1203: plines = rcs_splitlines(patch);
1.5 vincent 1204: if (plines == NULL) {
1.17 jfb 1205: cvs_buf_free(res);
1.5 vincent 1206: rcs_freefoo(dlines);
1.1 jfb 1207: return (NULL);
1.5 vincent 1208: }
1209:
1210: if (rcs_patch_lines(dlines, plines) < 0) {
1.17 jfb 1211: cvs_buf_free(res);
1.5 vincent 1212: rcs_freefoo(plines);
1213: rcs_freefoo(dlines);
1214: return (NULL);
1215: }
1216:
1217: lineno = 0;
1218: TAILQ_FOREACH(lp, &dlines->rl_lines, rl_list) {
1219: if (lineno != 0)
1220: cvs_buf_fappend(res, "%s\n", lp->rl_line);
1221: lineno++;
1222: }
1223:
1224: rcs_freefoo(dlines);
1225: rcs_freefoo(plines);
1226: return (res);
1227: }
1228:
1.7 jfb 1229: static int
1.5 vincent 1230: rcs_patch_lines(struct rcs_foo *dlines, struct rcs_foo *plines)
1231: {
1232: char op, *ep;
1233: struct rcs_line *lp, *dlp, *ndlp;
1234: int i, lineno, nbln;
1.1 jfb 1235:
1236: dlp = TAILQ_FIRST(&(dlines->rl_lines));
1237: lp = TAILQ_FIRST(&(plines->rl_lines));
1238:
1239: /* skip first bogus line */
1240: for (lp = TAILQ_NEXT(lp, rl_list); lp != NULL;
1241: lp = TAILQ_NEXT(lp, rl_list)) {
1242: op = *(lp->rl_line);
1243: lineno = (int)strtol((lp->rl_line + 1), &ep, 10);
1.82 joris 1244: if ((lineno > dlines->rl_nblines) || (lineno < 0) ||
1.1 jfb 1245: (*ep != ' ')) {
1246: cvs_log(LP_ERR,
1247: "invalid line specification in RCS patch");
1.61 joris 1248: return (-1);
1.1 jfb 1249: }
1250: ep++;
1251: nbln = (int)strtol(ep, &ep, 10);
1.82 joris 1252: if ((nbln < 0) || (*ep != '\0')) {
1.1 jfb 1253: cvs_log(LP_ERR,
1254: "invalid line number specification in RCS patch");
1.61 joris 1255: return (-1);
1.1 jfb 1256: }
1257:
1258: /* find the appropriate line */
1259: for (;;) {
1260: if (dlp == NULL)
1261: break;
1262: if (dlp->rl_lineno == lineno)
1263: break;
1264: if (dlp->rl_lineno > lineno) {
1265: dlp = TAILQ_PREV(dlp, rcs_tqh, rl_list);
1.14 deraadt 1266: } else if (dlp->rl_lineno < lineno) {
1.1 jfb 1267: ndlp = TAILQ_NEXT(dlp, rl_list);
1268: if (ndlp->rl_lineno > lineno)
1269: break;
1270: dlp = ndlp;
1271: }
1272: }
1273: if (dlp == NULL) {
1274: cvs_log(LP_ERR,
1275: "can't find referenced line in RCS patch");
1.61 joris 1276: return (-1);
1.1 jfb 1277: }
1278:
1279: if (op == 'd') {
1280: for (i = 0; (i < nbln) && (dlp != NULL); i++) {
1281: ndlp = TAILQ_NEXT(dlp, rl_list);
1282: TAILQ_REMOVE(&(dlines->rl_lines), dlp, rl_list);
1283: dlp = ndlp;
1284: }
1.14 deraadt 1285: } else if (op == 'a') {
1.1 jfb 1286: for (i = 0; i < nbln; i++) {
1287: ndlp = lp;
1288: lp = TAILQ_NEXT(lp, rl_list);
1289: if (lp == NULL) {
1290: cvs_log(LP_ERR, "truncated RCS patch");
1.5 vincent 1291: return (-1);
1.1 jfb 1292: }
1293: TAILQ_REMOVE(&(plines->rl_lines), lp, rl_list);
1294: TAILQ_INSERT_AFTER(&(dlines->rl_lines), dlp,
1295: lp, rl_list);
1296: dlp = lp;
1297:
1298: /* we don't want lookup to block on those */
1299: lp->rl_lineno = lineno;
1300:
1301: lp = ndlp;
1302: }
1.14 deraadt 1303: } else {
1.1 jfb 1304: cvs_log(LP_ERR, "unknown RCS patch operation `%c'", op);
1.5 vincent 1305: return (-1);
1.1 jfb 1306: }
1307:
1308: /* last line of the patch, done */
1309: if (lp->rl_lineno == plines->rl_nblines)
1310: break;
1311: }
1312:
1313: /* once we're done patching, rebuild the line numbers */
1.2 vincent 1314: lineno = 0;
1.5 vincent 1315: TAILQ_FOREACH(lp, &(dlines->rl_lines), rl_list)
1.1 jfb 1316: lp->rl_lineno = lineno++;
1317: dlines->rl_nblines = lineno - 1;
1318:
1.5 vincent 1319: return (0);
1.1 jfb 1320: }
1321:
1322: /*
1323: * rcs_getrev()
1324: *
1325: * Get the whole contents of revision <rev> from the RCSFILE <rfp>. The
1.4 vincent 1326: * returned buffer is dynamically allocated and should be released using
1327: * cvs_buf_free() once the caller is done using it.
1.1 jfb 1328: */
1329: BUF*
1.66 joris 1330: rcs_getrev(RCSFILE *rfp, RCSNUM *frev)
1.1 jfb 1331: {
1.63 joris 1332: int expmode, res;
1.1 jfb 1333: size_t len;
1334: void *bp;
1.66 joris 1335: RCSNUM *crev, *rev;
1.65 niallo 1336: BUF *rbuf, *dbuf = NULL;
1.1 jfb 1337: struct rcs_delta *rdp = NULL;
1.63 joris 1338: struct rcs_foo *lines;
1339: struct rcs_line *lp;
1340: char out[1024]; /* XXX */
1.1 jfb 1341:
1.28 jfb 1342: if (rfp->rf_head == NULL)
1343: return (NULL);
1.66 joris 1344:
1345: if (frev == RCS_HEAD_REV)
1346: rev = rfp->rf_head;
1347: else
1348: rev = frev;
1.28 jfb 1349:
1.1 jfb 1350: res = rcsnum_cmp(rfp->rf_head, rev, 0);
1351: if (res == 1) {
1.32 jfb 1352: rcs_errno = RCS_ERR_NOENT;
1.1 jfb 1353: return (NULL);
1.26 jfb 1354: }
1355:
1356: rdp = rcs_findrev(rfp, rfp->rf_head);
1357: if (rdp == NULL) {
1358: cvs_log(LP_ERR, "failed to get RCS HEAD revision");
1359: return (NULL);
1360: }
1361:
1.45 jfb 1362: len = rdp->rd_tlen;
1.26 jfb 1363: if ((rbuf = cvs_buf_alloc(len, BUF_AUTOEXT)) == NULL)
1364: return (NULL);
1365:
1366: cvs_buf_append(rbuf, rdp->rd_text, len);
1367:
1368: if (res != 0) {
1369: /* Apply patches backwards to get the right version.
1370: * This will need some rework to support sub branches.
1371: */
1372: if ((crev = rcsnum_alloc()) == NULL) {
1373: cvs_buf_free(rbuf);
1.1 jfb 1374: return (NULL);
1375: }
1.26 jfb 1376: rcsnum_cpy(rfp->rf_head, crev, 0);
1377: do {
1378: crev->rn_id[crev->rn_len - 1]--;
1379: rdp = rcs_findrev(rfp, crev);
1380: if (rdp == NULL) {
1381: rcsnum_free(crev);
1382: cvs_buf_free(rbuf);
1383: return (NULL);
1384: }
1.1 jfb 1385:
1.26 jfb 1386: if (cvs_buf_putc(rbuf, '\0') < 0) {
1387: rcsnum_free(crev);
1.17 jfb 1388: cvs_buf_free(rbuf);
1.11 joris 1389: return (NULL);
1.17 jfb 1390: }
1.26 jfb 1391: bp = cvs_buf_release(rbuf);
1.45 jfb 1392: rbuf = rcs_patch((char *)bp, (char *)rdp->rd_text);
1.62 joris 1393: free(bp);
1.26 jfb 1394: if (rbuf == NULL)
1395: break;
1396: } while (rcsnum_cmp(crev, rev, 0) != 0);
1.1 jfb 1397:
1.26 jfb 1398: rcsnum_free(crev);
1.1 jfb 1399: }
1400:
1.63 joris 1401: /*
1402: * Do keyword expansion if required.
1403: */
1404: if (rfp->rf_expand != NULL)
1405: expmode = rcs_kwexp_get(rfp);
1406: else
1407: expmode = RCS_KWEXP_DEFAULT;
1408:
1409: if ((rbuf != NULL) && !(expmode & RCS_KWEXP_NONE)) {
1410: if ((dbuf = cvs_buf_alloc(len, BUF_AUTOEXT)) == NULL)
1411: return (rbuf);
1412: if ((rdp = rcs_findrev(rfp, rev)) == NULL)
1413: return (rbuf);
1414:
1415: if (cvs_buf_putc(rbuf, '\0') < 0) {
1416: cvs_buf_free(dbuf);
1417: return (rbuf);
1418: }
1419:
1420: bp = cvs_buf_release(rbuf);
1421: if ((lines = rcs_splitlines((char *)bp)) != NULL) {
1422: res = 0;
1423: TAILQ_FOREACH(lp, &lines->rl_lines, rl_list) {
1424: if (res++ == 0)
1425: continue;
1426: rcs_expand_keywords(rfp->rf_path, rdp,
1427: lp->rl_line, out, sizeof(out), expmode);
1428: cvs_buf_fappend(dbuf, "%s\n", out);
1429: }
1430: rcs_freefoo(lines);
1431: }
1432: free(bp);
1433: }
1434:
1435: return (dbuf);
1.1 jfb 1436: }
1437:
1438: /*
1.52 jfb 1439: * rcs_rev_add()
1440: *
1.53 jfb 1441: * Add a revision to the RCS file <rf>. The new revision's number can be
1442: * specified in <rev> (which can also be RCS_HEAD_REV, in which case the
1443: * new revision will have a number equal to the previous head revision plus
1444: * one). The <msg> argument specifies the log message for that revision, and
1445: * <date> specifies the revision's date (a value of -1 is
1446: * equivalent to using the current time).
1.52 jfb 1447: * Returns 0 on success, or -1 on failure.
1448: */
1449: int
1.53 jfb 1450: rcs_rev_add(RCSFILE *rf, RCSNUM *rev, const char *msg, time_t date)
1.52 jfb 1451: {
1452: time_t now;
1453: struct passwd *pw;
1.83 ! joris 1454: struct rcs_delta *ordp, *rdp;
! 1455: RCSNUM *old;
! 1456:
! 1457: if ((old = rcsnum_alloc()) == NULL)
! 1458: return (-1);
1.52 jfb 1459:
1460: if (rev == RCS_HEAD_REV) {
1.83 ! joris 1461: rcsnum_cpy(rf->rf_head, old, 0);
1.81 niallo 1462: rev = rcsnum_inc(rf->rf_head);
1.83 ! joris 1463: } else {
! 1464: if ((rdp = rcs_findrev(rf, rev)) != NULL) {
! 1465: rcs_errno = RCS_ERR_DUPENT;
! 1466: return (-1);
! 1467: }
! 1468:
! 1469: ordp = NULL;
! 1470: rcsnum_cpy(rev, old, 0);
! 1471: while (ordp == NULL) {
! 1472: old = rcsnum_dec(old);
! 1473: ordp = rcs_findrev(rf, old);
! 1474: }
1.52 jfb 1475: }
1476:
1477: if ((pw = getpwuid(getuid())) == NULL) {
1478: rcs_errno = RCS_ERR_ERRNO;
1479: return (-1);
1480: }
1481:
1482: if ((rdp = (struct rcs_delta *)malloc(sizeof(*rdp))) == NULL) {
1483: rcs_errno = RCS_ERR_ERRNO;
1484: return (-1);
1485: }
1486: memset(rdp, 0, sizeof(*rdp));
1487:
1488: TAILQ_INIT(&(rdp->rd_branches));
1489: TAILQ_INIT(&(rdp->rd_snodes));
1490:
1491: if ((rdp->rd_num = rcsnum_alloc()) == NULL) {
1492: rcs_freedelta(rdp);
1493: return (-1);
1494: }
1495: rcsnum_cpy(rev, rdp->rd_num, 0);
1.83 ! joris 1496:
! 1497: if ((rdp->rd_next = rcsnum_alloc()) == NULL) {
! 1498: rcs_freedelta(rdp);
! 1499: return (-1);
! 1500: }
! 1501: rcsnum_cpy(old, rdp->rd_next, 0);
! 1502: rcsnum_free(old);
1.52 jfb 1503:
1504: if ((rdp->rd_author = cvs_strdup(pw->pw_name)) == NULL) {
1505: rcs_freedelta(rdp);
1506: return (-1);
1507: }
1508:
1509: if ((rdp->rd_state = cvs_strdup(RCS_STATE_EXP)) == NULL) {
1510: rcs_freedelta(rdp);
1511: return (-1);
1512: }
1513:
1514: if ((rdp->rd_log = cvs_strdup(msg)) == NULL) {
1515: rcs_errno = RCS_ERR_ERRNO;
1516: rcs_freedelta(rdp);
1517: return (-1);
1518: }
1519:
1.53 jfb 1520: if (date != (time_t)(-1))
1521: now = date;
1522: else
1523: time(&now);
1.52 jfb 1524: gmtime_r(&now, &(rdp->rd_date));
1525:
1526: TAILQ_INSERT_HEAD(&(rf->rf_delta), rdp, rd_list);
1527: rf->rf_ndelta++;
1.81 niallo 1528:
1.64 niallo 1529: /* not synced anymore */
1530: rf->rf_flags &= ~RCS_SYNCED;
1.52 jfb 1531:
1532: return (0);
1533: }
1534:
1535: /*
1536: * rcs_rev_remove()
1537: *
1538: * Remove the revision whose number is <rev> from the RCS file <rf>.
1539: */
1540: int
1541: rcs_rev_remove(RCSFILE *rf, RCSNUM *rev)
1542: {
1543: int ret;
1544: struct rcs_delta *rdp;
1545:
1546: ret = 0;
1547: if (rev == RCS_HEAD_REV)
1548: rev = rf->rf_head;
1549:
1550: /* do we actually have that revision? */
1551: if ((rdp = rcs_findrev(rf, rev)) == NULL) {
1552: rcs_errno = RCS_ERR_NOENT;
1553: ret = -1;
1554: } else {
1555: /* XXX assumes it's not a sub node */
1556: TAILQ_REMOVE(&(rf->rf_delta), rdp, rd_list);
1557: rf->rf_ndelta--;
1558: rf->rf_flags &= ~RCS_SYNCED;
1559: }
1560:
1561: return (ret);
1562:
1563: }
1564:
1565: /*
1.1 jfb 1566: * rcs_findrev()
1567: *
1568: * Find a specific revision's delta entry in the tree of the RCS file <rfp>.
1569: * The revision number is given in <rev>.
1570: * Returns a pointer to the delta on success, or NULL on failure.
1571: */
1572: static struct rcs_delta*
1.43 jfb 1573: rcs_findrev(RCSFILE *rfp, const RCSNUM *rev)
1.1 jfb 1574: {
1575: u_int cmplen;
1576: struct rcs_delta *rdp;
1577: struct rcs_dlist *hp;
1.6 vincent 1578: int found;
1.26 jfb 1579:
1.1 jfb 1580: cmplen = 2;
1581: hp = &(rfp->rf_delta);
1582:
1.6 vincent 1583: do {
1584: found = 0;
1585: TAILQ_FOREACH(rdp, hp, rd_list) {
1586: if (rcsnum_cmp(rdp->rd_num, rev, cmplen) == 0) {
1587: if (cmplen == rev->rn_len)
1588: return (rdp);
1.1 jfb 1589:
1.6 vincent 1590: hp = &(rdp->rd_snodes);
1591: cmplen += 2;
1592: found = 1;
1593: break;
1594: }
1.1 jfb 1595: }
1.6 vincent 1596: } while (found && cmplen < rev->rn_len);
1.1 jfb 1597:
1598: return (NULL);
1.20 jfb 1599: }
1600:
1601: /*
1.26 jfb 1602: * rcs_kwexp_set()
1603: *
1604: * Set the keyword expansion mode to use on the RCS file <file> to <mode>.
1605: * Returns 0 on success, or -1 on failure.
1606: */
1607: int
1608: rcs_kwexp_set(RCSFILE *file, int mode)
1609: {
1610: int i;
1611: char *tmp, buf[8] = "";
1612:
1613: if (RCS_KWEXP_INVAL(mode))
1614: return (-1);
1615:
1616: i = 0;
1617: if (mode == RCS_KWEXP_NONE)
1618: buf[0] = 'b';
1619: else if (mode == RCS_KWEXP_OLD)
1620: buf[0] = 'o';
1621: else {
1622: if (mode & RCS_KWEXP_NAME)
1623: buf[i++] = 'k';
1624: if (mode & RCS_KWEXP_VAL)
1625: buf[i++] = 'v';
1626: if (mode & RCS_KWEXP_LKR)
1627: buf[i++] = 'l';
1628: }
1629:
1.39 joris 1630: if ((tmp = cvs_strdup(buf)) == NULL) {
1.26 jfb 1631: cvs_log(LP_ERRNO, "%s: failed to copy expansion mode",
1632: file->rf_path);
1633: return (-1);
1634: }
1635:
1.27 jfb 1636: if (file->rf_expand != NULL)
1.39 joris 1637: cvs_strfree(file->rf_expand);
1.26 jfb 1638: file->rf_expand = tmp;
1.64 niallo 1639: /* not synced anymore */
1640: file->rf_flags &= ~RCS_SYNCED;
1.26 jfb 1641:
1642: return (0);
1643: }
1644:
1645: /*
1646: * rcs_kwexp_get()
1647: *
1648: * Retrieve the keyword expansion mode to be used for the RCS file <file>.
1649: */
1650: int
1651: rcs_kwexp_get(RCSFILE *file)
1652: {
1653: return rcs_kflag_get(file->rf_expand);
1654: }
1655:
1656: /*
1.20 jfb 1657: * rcs_kflag_get()
1658: *
1659: * Get the keyword expansion mode from a set of character flags given in
1660: * <flags> and return the appropriate flag mask. In case of an error, the
1661: * returned mask will have the RCS_KWEXP_ERR bit set to 1.
1662: */
1663: int
1664: rcs_kflag_get(const char *flags)
1665: {
1666: int fl;
1667: size_t len;
1668: const char *fp;
1669:
1670: fl = 0;
1671: len = strlen(flags);
1672:
1673: for (fp = flags; *fp != '\0'; fp++) {
1674: if (*fp == 'k')
1675: fl |= RCS_KWEXP_NAME;
1676: else if (*fp == 'v')
1677: fl |= RCS_KWEXP_VAL;
1678: else if (*fp == 'l')
1679: fl |= RCS_KWEXP_LKR;
1680: else if (*fp == 'o') {
1681: if (len != 1)
1682: fl |= RCS_KWEXP_ERR;
1683: fl |= RCS_KWEXP_OLD;
1684: } else if (*fp == 'b') {
1685: if (len != 1)
1686: fl |= RCS_KWEXP_ERR;
1687: } else /* unknown letter */
1688: fl |= RCS_KWEXP_ERR;
1689: }
1690:
1691: return (fl);
1.32 jfb 1692: }
1693:
1694: /*
1695: * rcs_errstr()
1696: *
1697: * Get the error string matching the RCS error code <code>.
1698: */
1.57 xsa 1699: const char *
1.32 jfb 1700: rcs_errstr(int code)
1701: {
1.50 jfb 1702: const char *esp;
1703:
1704: if ((code < 0) || ((code >= (int)RCS_NERR) && (code != RCS_ERR_ERRNO)))
1705: esp = NULL;
1706: else if (code == RCS_ERR_ERRNO)
1707: esp = strerror(errno);
1708: else
1709: esp = rcs_errstrs[code];
1710: return (esp);
1.1 jfb 1711: }
1712:
1.21 jfb 1713: void
1714: rcs_kflag_usage(void)
1715: {
1716: fprintf(stderr, "Valid expansion modes include:\n"
1.22 jfb 1717: "\t-kkv\tGenerate keywords using the default form.\n"
1718: "\t-kkvl\tLike -kkv, except locker's name inserted.\n"
1719: "\t-kk\tGenerate only keyword names in keyword strings.\n"
1720: "\t-kv\tGenerate only keyword values in keyword strings.\n"
1721: "\t-ko\tGenerate old keyword string "
1.21 jfb 1722: "(no changes from checked in file).\n"
1.22 jfb 1723: "\t-kb\tGenerate binary file unmodified (merges not allowed).\n");
1.21 jfb 1724: }
1.1 jfb 1725:
1726: /*
1727: * rcs_parse()
1728: *
1729: * Parse the contents of file <path>, which are in the RCS format.
1730: * Returns 0 on success, or -1 on failure.
1731: */
1.26 jfb 1732: static int
1.1 jfb 1733: rcs_parse(RCSFILE *rfp)
1734: {
1735: int ret;
1736: struct rcs_pdata *pdp;
1737:
1.26 jfb 1738: if (rfp->rf_flags & RCS_PARSED)
1.1 jfb 1739: return (0);
1740:
1.26 jfb 1741: if ((pdp = (struct rcs_pdata *)malloc(sizeof(*pdp))) == NULL) {
1.50 jfb 1742: rcs_errno = RCS_ERR_ERRNO;
1.1 jfb 1743: cvs_log(LP_ERRNO, "failed to allocate RCS parser data");
1744: return (-1);
1745: }
1746: memset(pdp, 0, sizeof(*pdp));
1747:
1.18 jfb 1748: pdp->rp_lines = 0;
1.1 jfb 1749: pdp->rp_pttype = RCS_TOK_ERR;
1750:
1751: pdp->rp_file = fopen(rfp->rf_path, "r");
1752: if (pdp->rp_file == NULL) {
1.50 jfb 1753: rcs_errno = RCS_ERR_ERRNO;
1.1 jfb 1754: cvs_log(LP_ERRNO, "failed to open RCS file `%s'", rfp->rf_path);
1755: rcs_freepdata(pdp);
1756: return (-1);
1757: }
1758:
1.59 xsa 1759: pdp->rp_buf = (char *)malloc((size_t)RCS_BUFSIZE);
1.1 jfb 1760: if (pdp->rp_buf == NULL) {
1.50 jfb 1761: rcs_errno = RCS_ERR_ERRNO;
1.1 jfb 1762: cvs_log(LP_ERRNO, "failed to allocate RCS parser buffer");
1763: rcs_freepdata(pdp);
1764: return (-1);
1765: }
1766: pdp->rp_blen = RCS_BUFSIZE;
1.18 jfb 1767: pdp->rp_bufend = pdp->rp_buf + pdp->rp_blen - 1;
1.1 jfb 1768:
1769: /* ditch the strict lock */
1.26 jfb 1770: rfp->rf_flags &= ~RCS_SLOCK;
1.1 jfb 1771: rfp->rf_pdata = pdp;
1772:
1.31 jfb 1773: if ((ret = rcs_parse_admin(rfp)) < 0) {
1.1 jfb 1774: rcs_freepdata(pdp);
1775: return (-1);
1.31 jfb 1776: } else if (ret == RCS_TOK_NUM) {
1777: for (;;) {
1778: ret = rcs_parse_delta(rfp);
1779: if (ret == 0)
1780: break;
1781: else if (ret == -1) {
1782: rcs_freepdata(pdp);
1783: return (-1);
1784: }
1.1 jfb 1785: }
1786: }
1787:
1788: ret = rcs_gettok(rfp);
1789: if (ret != RCS_TOK_DESC) {
1.50 jfb 1790: rcs_errno = RCS_ERR_PARSE;
1.1 jfb 1791: cvs_log(LP_ERR, "token `%s' found where RCS desc expected",
1792: RCS_TOKSTR(rfp));
1793: rcs_freepdata(pdp);
1794: return (-1);
1795: }
1796:
1797: ret = rcs_gettok(rfp);
1798: if (ret != RCS_TOK_STRING) {
1.50 jfb 1799: rcs_errno = RCS_ERR_PARSE;
1.1 jfb 1800: cvs_log(LP_ERR, "token `%s' found where RCS desc expected",
1801: RCS_TOKSTR(rfp));
1802: rcs_freepdata(pdp);
1803: return (-1);
1804: }
1805:
1.39 joris 1806: rfp->rf_desc = cvs_strdup(RCS_TOKSTR(rfp));
1.10 joris 1807: if (rfp->rf_desc == NULL) {
1808: cvs_log(LP_ERRNO, "failed to duplicate rcs token");
1809: rcs_freepdata(pdp);
1810: return (-1);
1811: }
1.1 jfb 1812:
1813: for (;;) {
1814: ret = rcs_parse_deltatext(rfp);
1815: if (ret == 0)
1816: break;
1817: else if (ret == -1) {
1818: rcs_freepdata(pdp);
1819: return (-1);
1820: }
1821: }
1822:
1823: rcs_freepdata(pdp);
1824:
1825: rfp->rf_pdata = NULL;
1.26 jfb 1826: rfp->rf_flags |= RCS_PARSED | RCS_SYNCED;
1.1 jfb 1827:
1828: return (0);
1829: }
1830:
1831: /*
1832: * rcs_parse_admin()
1833: *
1834: * Parse the administrative portion of an RCS file.
1.31 jfb 1835: * Returns the type of the first token found after the admin section on
1836: * success, or -1 on failure.
1.1 jfb 1837: */
1838: static int
1839: rcs_parse_admin(RCSFILE *rfp)
1840: {
1841: u_int i;
1842: int tok, ntok, hmask;
1843: struct rcs_key *rk;
1844:
1845: /* hmask is a mask of the headers already encountered */
1846: hmask = 0;
1847: for (;;) {
1848: tok = rcs_gettok(rfp);
1849: if (tok == RCS_TOK_ERR) {
1.50 jfb 1850: rcs_errno = RCS_ERR_PARSE;
1.1 jfb 1851: cvs_log(LP_ERR, "parse error in RCS admin section");
1852: return (-1);
1.31 jfb 1853: } else if ((tok == RCS_TOK_NUM) || (tok == RCS_TOK_DESC)) {
1854: /*
1855: * Assume this is the start of the first delta or
1856: * that we are dealing with an empty RCS file and
1857: * we just found the description.
1858: */
1.1 jfb 1859: rcs_pushtok(rfp, RCS_TOKSTR(rfp), tok);
1.31 jfb 1860: return (tok);
1.1 jfb 1861: }
1862:
1863: rk = NULL;
1.18 jfb 1864: for (i = 0; i < RCS_NKEYS; i++)
1.1 jfb 1865: if (rcs_keys[i].rk_id == tok)
1866: rk = &(rcs_keys[i]);
1867:
1868: if (hmask & (1 << tok)) {
1.50 jfb 1869: rcs_errno = RCS_ERR_PARSE;
1.1 jfb 1870: cvs_log(LP_ERR, "duplicate RCS key");
1871: return (-1);
1872: }
1873: hmask |= (1 << tok);
1874:
1875: switch (tok) {
1876: case RCS_TOK_HEAD:
1877: case RCS_TOK_BRANCH:
1878: case RCS_TOK_COMMENT:
1879: case RCS_TOK_EXPAND:
1880: ntok = rcs_gettok(rfp);
1881: if (ntok == RCS_TOK_SCOLON)
1882: break;
1883: if (ntok != rk->rk_val) {
1.50 jfb 1884: rcs_errno = RCS_ERR_PARSE;
1.1 jfb 1885: cvs_log(LP_ERR,
1886: "invalid value type for RCS key `%s'",
1887: rk->rk_str);
1888: }
1889:
1890: if (tok == RCS_TOK_HEAD) {
1.28 jfb 1891: if (rfp->rf_head == NULL) {
1892: rfp->rf_head = rcsnum_alloc();
1893: if (rfp->rf_head == NULL)
1894: return (-1);
1895: }
1.1 jfb 1896: rcsnum_aton(RCS_TOKSTR(rfp), NULL,
1897: rfp->rf_head);
1.14 deraadt 1898: } else if (tok == RCS_TOK_BRANCH) {
1.35 jfb 1899: if (rfp->rf_branch == NULL) {
1900: rfp->rf_branch = rcsnum_alloc();
1901: if (rfp->rf_branch == NULL)
1902: return (-1);
1903: }
1904: if (rcsnum_aton(RCS_TOKSTR(rfp), NULL,
1905: rfp->rf_branch) < 0)
1906: return (-1);
1.14 deraadt 1907: } else if (tok == RCS_TOK_COMMENT) {
1.39 joris 1908: rfp->rf_comment = cvs_strdup(RCS_TOKSTR(rfp));
1.10 joris 1909: if (rfp->rf_comment == NULL) {
1910: cvs_log(LP_ERRNO,
1911: "failed to duplicate rcs token");
1912: return (-1);
1913: }
1.14 deraadt 1914: } else if (tok == RCS_TOK_EXPAND) {
1.39 joris 1915: rfp->rf_expand = cvs_strdup(RCS_TOKSTR(rfp));
1.10 joris 1916: if (rfp->rf_expand == NULL) {
1917: cvs_log(LP_ERRNO,
1918: "failed to duplicate rcs token");
1919: return (-1);
1920: }
1.1 jfb 1921: }
1922:
1923: /* now get the expected semi-colon */
1924: ntok = rcs_gettok(rfp);
1925: if (ntok != RCS_TOK_SCOLON) {
1.50 jfb 1926: rcs_errno = RCS_ERR_PARSE;
1.1 jfb 1927: cvs_log(LP_ERR,
1928: "missing semi-colon after RCS `%s' key",
1.26 jfb 1929: rk->rk_str);
1.1 jfb 1930: return (-1);
1931: }
1932: break;
1933: case RCS_TOK_ACCESS:
1.29 jfb 1934: if (rcs_parse_access(rfp) < 0)
1935: return (-1);
1.1 jfb 1936: break;
1937: case RCS_TOK_SYMBOLS:
1.29 jfb 1938: if (rcs_parse_symbols(rfp) < 0)
1939: return (-1);
1.1 jfb 1940: break;
1941: case RCS_TOK_LOCKS:
1.29 jfb 1942: if (rcs_parse_locks(rfp) < 0)
1943: return (-1);
1.1 jfb 1944: break;
1945: default:
1.50 jfb 1946: rcs_errno = RCS_ERR_PARSE;
1.1 jfb 1947: cvs_log(LP_ERR,
1948: "unexpected token `%s' in RCS admin section",
1949: RCS_TOKSTR(rfp));
1950: return (-1);
1951: }
1952: }
1953:
1954: return (0);
1955: }
1956:
1957: /*
1958: * rcs_parse_delta()
1959: *
1960: * Parse an RCS delta section and allocate the structure to store that delta's
1961: * information in the <rfp> delta list.
1962: * Returns 1 if the section was parsed OK, 0 if it is the last delta, and
1963: * -1 on error.
1964: */
1965: static int
1966: rcs_parse_delta(RCSFILE *rfp)
1967: {
1968: int ret, tok, ntok, hmask;
1969: u_int i;
1970: char *tokstr;
1.3 vincent 1971: RCSNUM *datenum;
1.1 jfb 1972: struct rcs_delta *rdp;
1973: struct rcs_key *rk;
1974:
1975: rdp = (struct rcs_delta *)malloc(sizeof(*rdp));
1976: if (rdp == NULL) {
1.50 jfb 1977: rcs_errno = RCS_ERR_ERRNO;
1.1 jfb 1978: cvs_log(LP_ERRNO, "failed to allocate RCS delta structure");
1979: return (-1);
1980: }
1981: memset(rdp, 0, sizeof(*rdp));
1982:
1983: rdp->rd_num = rcsnum_alloc();
1.11 joris 1984: if (rdp->rd_num == NULL) {
1985: rcs_freedelta(rdp);
1986: return (-1);
1987: }
1.1 jfb 1988: rdp->rd_next = rcsnum_alloc();
1.11 joris 1989: if (rdp->rd_next == NULL) {
1990: rcs_freedelta(rdp);
1991: return (-1);
1992: }
1.1 jfb 1993:
1994: TAILQ_INIT(&(rdp->rd_branches));
1.52 jfb 1995: TAILQ_INIT(&(rdp->rd_snodes));
1.1 jfb 1996:
1997: tok = rcs_gettok(rfp);
1998: if (tok != RCS_TOK_NUM) {
1.52 jfb 1999: rcs_errno = RCS_ERR_PARSE;
1.1 jfb 2000: cvs_log(LP_ERR, "unexpected token `%s' at start of delta",
2001: RCS_TOKSTR(rfp));
2002: rcs_freedelta(rdp);
2003: return (-1);
2004: }
2005: rcsnum_aton(RCS_TOKSTR(rfp), NULL, rdp->rd_num);
2006:
2007: hmask = 0;
2008: ret = 0;
2009: tokstr = NULL;
2010:
2011: for (;;) {
2012: tok = rcs_gettok(rfp);
2013: if (tok == RCS_TOK_ERR) {
1.50 jfb 2014: rcs_errno = RCS_ERR_PARSE;
1.1 jfb 2015: cvs_log(LP_ERR, "parse error in RCS delta section");
2016: rcs_freedelta(rdp);
2017: return (-1);
1.14 deraadt 2018: } else if (tok == RCS_TOK_NUM || tok == RCS_TOK_DESC) {
1.15 tedu 2019: rcs_pushtok(rfp, RCS_TOKSTR(rfp), tok);
1.1 jfb 2020: ret = (tok == RCS_TOK_NUM ? 1 : 0);
2021: break;
2022: }
2023:
2024: rk = NULL;
1.18 jfb 2025: for (i = 0; i < RCS_NKEYS; i++)
1.1 jfb 2026: if (rcs_keys[i].rk_id == tok)
2027: rk = &(rcs_keys[i]);
2028:
2029: if (hmask & (1 << tok)) {
1.50 jfb 2030: rcs_errno = RCS_ERR_PARSE;
1.1 jfb 2031: cvs_log(LP_ERR, "duplicate RCS key");
2032: rcs_freedelta(rdp);
2033: return (-1);
2034: }
2035: hmask |= (1 << tok);
2036:
2037: switch (tok) {
2038: case RCS_TOK_DATE:
2039: case RCS_TOK_AUTHOR:
2040: case RCS_TOK_STATE:
2041: case RCS_TOK_NEXT:
2042: ntok = rcs_gettok(rfp);
2043: if (ntok == RCS_TOK_SCOLON) {
2044: if (rk->rk_flags & RCS_VOPT)
2045: break;
2046: else {
1.50 jfb 2047: rcs_errno = RCS_ERR_PARSE;
1.1 jfb 2048: cvs_log(LP_ERR, "missing mandatory "
2049: "value to RCS key `%s'",
2050: rk->rk_str);
2051: rcs_freedelta(rdp);
2052: return (-1);
2053: }
2054: }
2055:
2056: if (ntok != rk->rk_val) {
1.50 jfb 2057: rcs_errno = RCS_ERR_PARSE;
1.1 jfb 2058: cvs_log(LP_ERR,
2059: "invalid value type for RCS key `%s'",
2060: rk->rk_str);
2061: rcs_freedelta(rdp);
2062: return (-1);
2063: }
2064:
2065: if (tokstr != NULL)
1.41 jfb 2066: cvs_strfree(tokstr);
1.39 joris 2067: tokstr = cvs_strdup(RCS_TOKSTR(rfp));
1.10 joris 2068: if (tokstr == NULL) {
1.15 tedu 2069: cvs_log(LP_ERRNO,
1.10 joris 2070: "failed to duplicate rcs token");
2071: rcs_freedelta(rdp);
2072: return (-1);
2073: }
1.1 jfb 2074:
2075: /* now get the expected semi-colon */
2076: ntok = rcs_gettok(rfp);
2077: if (ntok != RCS_TOK_SCOLON) {
1.50 jfb 2078: rcs_errno = RCS_ERR_PARSE;
1.1 jfb 2079: cvs_log(LP_ERR,
2080: "missing semi-colon after RCS `%s' key",
1.26 jfb 2081: rk->rk_str);
1.41 jfb 2082: cvs_strfree(tokstr);
1.1 jfb 2083: rcs_freedelta(rdp);
2084: return (-1);
2085: }
2086:
2087: if (tok == RCS_TOK_DATE) {
1.25 jfb 2088: if ((datenum = rcsnum_parse(tokstr)) == NULL) {
1.41 jfb 2089: cvs_strfree(tokstr);
1.11 joris 2090: rcs_freedelta(rdp);
2091: return (-1);
2092: }
1.3 vincent 2093: if (datenum->rn_len != 6) {
1.50 jfb 2094: rcs_errno = RCS_ERR_PARSE;
1.1 jfb 2095: cvs_log(LP_ERR,
2096: "RCS date specification has %s "
2097: "fields",
1.3 vincent 2098: (datenum->rn_len > 6) ? "too many" :
1.1 jfb 2099: "missing");
1.41 jfb 2100: cvs_strfree(tokstr);
1.1 jfb 2101: rcs_freedelta(rdp);
1.37 tedu 2102: rcsnum_free(datenum);
2103: return (-1);
1.1 jfb 2104: }
1.3 vincent 2105: rdp->rd_date.tm_year = datenum->rn_id[0];
1.19 jfb 2106: if (rdp->rd_date.tm_year >= 1900)
2107: rdp->rd_date.tm_year -= 1900;
1.3 vincent 2108: rdp->rd_date.tm_mon = datenum->rn_id[1] - 1;
2109: rdp->rd_date.tm_mday = datenum->rn_id[2];
2110: rdp->rd_date.tm_hour = datenum->rn_id[3];
2111: rdp->rd_date.tm_min = datenum->rn_id[4];
2112: rdp->rd_date.tm_sec = datenum->rn_id[5];
2113: rcsnum_free(datenum);
1.14 deraadt 2114: } else if (tok == RCS_TOK_AUTHOR) {
1.1 jfb 2115: rdp->rd_author = tokstr;
2116: tokstr = NULL;
1.14 deraadt 2117: } else if (tok == RCS_TOK_STATE) {
1.1 jfb 2118: rdp->rd_state = tokstr;
2119: tokstr = NULL;
1.14 deraadt 2120: } else if (tok == RCS_TOK_NEXT) {
1.1 jfb 2121: rcsnum_aton(tokstr, NULL, rdp->rd_next);
2122: }
2123: break;
2124: case RCS_TOK_BRANCHES:
1.46 jfb 2125: if (rcs_parse_branches(rfp, rdp) < 0) {
2126: rcs_freedelta(rdp);
2127: return (-1);
2128: }
1.1 jfb 2129: break;
2130: default:
1.50 jfb 2131: rcs_errno = RCS_ERR_PARSE;
1.1 jfb 2132: cvs_log(LP_ERR,
2133: "unexpected token `%s' in RCS delta",
2134: RCS_TOKSTR(rfp));
2135: rcs_freedelta(rdp);
2136: return (-1);
2137: }
2138: }
2139:
1.13 jfb 2140: if (tokstr != NULL)
1.39 joris 2141: cvs_strfree(tokstr);
1.13 jfb 2142:
1.1 jfb 2143: TAILQ_INSERT_TAIL(&(rfp->rf_delta), rdp, rd_list);
1.26 jfb 2144: rfp->rf_ndelta++;
1.1 jfb 2145:
2146: return (ret);
2147: }
2148:
2149: /*
2150: * rcs_parse_deltatext()
2151: *
2152: * Parse an RCS delta text section and fill in the log and text field of the
2153: * appropriate delta section.
2154: * Returns 1 if the section was parsed OK, 0 if it is the last delta, and
2155: * -1 on error.
2156: */
2157: static int
2158: rcs_parse_deltatext(RCSFILE *rfp)
2159: {
2160: int tok;
2161: RCSNUM *tnum;
2162: struct rcs_delta *rdp;
2163:
2164: tok = rcs_gettok(rfp);
2165: if (tok == RCS_TOK_EOF)
2166: return (0);
2167:
2168: if (tok != RCS_TOK_NUM) {
1.50 jfb 2169: rcs_errno = RCS_ERR_PARSE;
1.1 jfb 2170: cvs_log(LP_ERR,
2171: "unexpected token `%s' at start of RCS delta text",
2172: RCS_TOKSTR(rfp));
2173: return (-1);
2174: }
1.13 jfb 2175:
2176: tnum = rcsnum_alloc();
2177: if (tnum == NULL)
2178: return (-1);
1.1 jfb 2179: rcsnum_aton(RCS_TOKSTR(rfp), NULL, tnum);
2180:
2181: TAILQ_FOREACH(rdp, &(rfp->rf_delta), rd_list) {
2182: if (rcsnum_cmp(tnum, rdp->rd_num, 0) == 0)
2183: break;
2184: }
1.13 jfb 2185: rcsnum_free(tnum);
2186:
1.1 jfb 2187: if (rdp == NULL) {
2188: cvs_log(LP_ERR, "RCS delta text `%s' has no matching delta",
2189: RCS_TOKSTR(rfp));
2190: return (-1);
2191: }
2192:
2193: tok = rcs_gettok(rfp);
2194: if (tok != RCS_TOK_LOG) {
1.50 jfb 2195: rcs_errno = RCS_ERR_PARSE;
1.1 jfb 2196: cvs_log(LP_ERR, "unexpected token `%s' where RCS log expected",
2197: RCS_TOKSTR(rfp));
2198: return (-1);
2199: }
2200:
2201: tok = rcs_gettok(rfp);
2202: if (tok != RCS_TOK_STRING) {
1.50 jfb 2203: rcs_errno = RCS_ERR_PARSE;
1.1 jfb 2204: cvs_log(LP_ERR, "unexpected token `%s' where RCS log expected",
2205: RCS_TOKSTR(rfp));
2206: return (-1);
2207: }
1.39 joris 2208: rdp->rd_log = cvs_strdup(RCS_TOKSTR(rfp));
1.1 jfb 2209: if (rdp->rd_log == NULL) {
2210: cvs_log(LP_ERRNO, "failed to copy RCS deltatext log");
2211: return (-1);
2212: }
2213:
2214: tok = rcs_gettok(rfp);
2215: if (tok != RCS_TOK_TEXT) {
1.50 jfb 2216: rcs_errno = RCS_ERR_PARSE;
1.1 jfb 2217: cvs_log(LP_ERR, "unexpected token `%s' where RCS text expected",
2218: RCS_TOKSTR(rfp));
2219: return (-1);
2220: }
2221:
2222: tok = rcs_gettok(rfp);
2223: if (tok != RCS_TOK_STRING) {
1.50 jfb 2224: rcs_errno = RCS_ERR_PARSE;
1.1 jfb 2225: cvs_log(LP_ERR, "unexpected token `%s' where RCS text expected",
2226: RCS_TOKSTR(rfp));
2227: return (-1);
2228: }
2229:
1.74 joris 2230: rdp->rd_text = (u_char *)malloc(RCS_TOKLEN(rfp) + 1);
1.1 jfb 2231: if (rdp->rd_text == NULL) {
2232: cvs_log(LP_ERRNO, "failed to copy RCS delta text");
2233: return (-1);
2234: }
1.74 joris 2235: strlcpy(rdp->rd_text, RCS_TOKSTR(rfp), (RCS_TOKLEN(rfp) + 1));
1.42 jfb 2236: rdp->rd_tlen = RCS_TOKLEN(rfp);
1.1 jfb 2237:
2238: return (1);
2239: }
2240:
2241: /*
2242: * rcs_parse_access()
2243: *
2244: * Parse the access list given as value to the `access' keyword.
2245: * Returns 0 on success, or -1 on failure.
2246: */
2247: static int
2248: rcs_parse_access(RCSFILE *rfp)
2249: {
2250: int type;
2251:
2252: while ((type = rcs_gettok(rfp)) != RCS_TOK_SCOLON) {
2253: if (type != RCS_TOK_ID) {
1.50 jfb 2254: rcs_errno = RCS_ERR_PARSE;
1.1 jfb 2255: cvs_log(LP_ERR, "unexpected token `%s' in access list",
2256: RCS_TOKSTR(rfp));
2257: return (-1);
2258: }
1.29 jfb 2259:
2260: if (rcs_access_add(rfp, RCS_TOKSTR(rfp)) < 0)
2261: return (-1);
1.1 jfb 2262: }
2263:
2264: return (0);
2265: }
2266:
2267: /*
2268: * rcs_parse_symbols()
2269: *
2270: * Parse the symbol list given as value to the `symbols' keyword.
2271: * Returns 0 on success, or -1 on failure.
2272: */
2273: static int
2274: rcs_parse_symbols(RCSFILE *rfp)
2275: {
2276: int type;
2277: struct rcs_sym *symp;
2278:
2279: for (;;) {
2280: type = rcs_gettok(rfp);
2281: if (type == RCS_TOK_SCOLON)
2282: break;
2283:
1.41 jfb 2284: if (type != RCS_TOK_ID) {
1.50 jfb 2285: rcs_errno = RCS_ERR_PARSE;
1.1 jfb 2286: cvs_log(LP_ERR, "unexpected token `%s' in symbol list",
2287: RCS_TOKSTR(rfp));
2288: return (-1);
2289: }
2290:
2291: symp = (struct rcs_sym *)malloc(sizeof(*symp));
2292: if (symp == NULL) {
1.50 jfb 2293: rcs_errno = RCS_ERR_ERRNO;
1.1 jfb 2294: cvs_log(LP_ERRNO, "failed to allocate RCS symbol");
2295: return (-1);
2296: }
1.39 joris 2297: symp->rs_name = cvs_strdup(RCS_TOKSTR(rfp));
1.10 joris 2298: if (symp->rs_name == NULL) {
2299: cvs_log(LP_ERRNO, "failed to duplicate rcs token");
2300: free(symp);
2301: return (-1);
2302: }
2303:
1.1 jfb 2304: symp->rs_num = rcsnum_alloc();
1.11 joris 2305: if (symp->rs_num == NULL) {
2306: cvs_log(LP_ERRNO, "failed to allocate rcsnum info");
1.39 joris 2307: cvs_strfree(symp->rs_name);
1.11 joris 2308: free(symp);
2309: return (-1);
2310: }
1.1 jfb 2311:
2312: type = rcs_gettok(rfp);
2313: if (type != RCS_TOK_COLON) {
1.50 jfb 2314: rcs_errno = RCS_ERR_PARSE;
1.1 jfb 2315: cvs_log(LP_ERR, "unexpected token `%s' in symbol list",
2316: RCS_TOKSTR(rfp));
1.11 joris 2317: rcsnum_free(symp->rs_num);
1.39 joris 2318: cvs_strfree(symp->rs_name);
1.1 jfb 2319: free(symp);
2320: return (-1);
2321: }
2322:
2323: type = rcs_gettok(rfp);
2324: if (type != RCS_TOK_NUM) {
1.50 jfb 2325: rcs_errno = RCS_ERR_PARSE;
1.1 jfb 2326: cvs_log(LP_ERR, "unexpected token `%s' in symbol list",
2327: RCS_TOKSTR(rfp));
1.11 joris 2328: rcsnum_free(symp->rs_num);
1.39 joris 2329: cvs_strfree(symp->rs_name);
1.1 jfb 2330: free(symp);
2331: return (-1);
2332: }
2333:
2334: if (rcsnum_aton(RCS_TOKSTR(rfp), NULL, symp->rs_num) < 0) {
2335: cvs_log(LP_ERR, "failed to parse RCS NUM `%s'",
2336: RCS_TOKSTR(rfp));
1.11 joris 2337: rcsnum_free(symp->rs_num);
1.39 joris 2338: cvs_strfree(symp->rs_name);
1.1 jfb 2339: free(symp);
2340: return (-1);
2341: }
2342:
1.43 jfb 2343: TAILQ_INSERT_TAIL(&(rfp->rf_symbols), symp, rs_list);
1.1 jfb 2344: }
2345:
2346: return (0);
2347: }
2348:
2349: /*
2350: * rcs_parse_locks()
2351: *
2352: * Parse the lock list given as value to the `locks' keyword.
2353: * Returns 0 on success, or -1 on failure.
2354: */
2355: static int
2356: rcs_parse_locks(RCSFILE *rfp)
2357: {
2358: int type;
2359: struct rcs_lock *lkp;
2360:
2361: for (;;) {
2362: type = rcs_gettok(rfp);
2363: if (type == RCS_TOK_SCOLON)
2364: break;
2365:
2366: if (type != RCS_TOK_ID) {
1.50 jfb 2367: rcs_errno = RCS_ERR_PARSE;
1.1 jfb 2368: cvs_log(LP_ERR, "unexpected token `%s' in lock list",
2369: RCS_TOKSTR(rfp));
2370: return (-1);
2371: }
2372:
2373: lkp = (struct rcs_lock *)malloc(sizeof(*lkp));
2374: if (lkp == NULL) {
2375: cvs_log(LP_ERRNO, "failed to allocate RCS lock");
2376: return (-1);
2377: }
1.76 joris 2378:
2379: if ((lkp->rl_name = cvs_strdup(RCS_TOKSTR(rfp))) == NULL) {
2380: cvs_log(LP_ERR, "failed to save locking user");
2381: free(lkp);
2382: return (-1);
2383: }
2384:
1.1 jfb 2385: lkp->rl_num = rcsnum_alloc();
1.11 joris 2386: if (lkp->rl_num == NULL) {
1.76 joris 2387: cvs_strfree(lkp->rl_name);
1.11 joris 2388: free(lkp);
2389: return (-1);
2390: }
1.1 jfb 2391:
2392: type = rcs_gettok(rfp);
2393: if (type != RCS_TOK_COLON) {
1.50 jfb 2394: rcs_errno = RCS_ERR_PARSE;
1.1 jfb 2395: cvs_log(LP_ERR, "unexpected token `%s' in symbol list",
2396: RCS_TOKSTR(rfp));
1.37 tedu 2397: rcsnum_free(lkp->rl_num);
1.76 joris 2398: cvs_strfree(lkp->rl_name);
1.1 jfb 2399: free(lkp);
2400: return (-1);
2401: }
2402:
2403: type = rcs_gettok(rfp);
2404: if (type != RCS_TOK_NUM) {
1.50 jfb 2405: rcs_errno = RCS_ERR_PARSE;
1.1 jfb 2406: cvs_log(LP_ERR, "unexpected token `%s' in symbol list",
2407: RCS_TOKSTR(rfp));
1.37 tedu 2408: rcsnum_free(lkp->rl_num);
1.76 joris 2409: cvs_strfree(lkp->rl_name);
1.1 jfb 2410: free(lkp);
2411: return (-1);
2412: }
2413:
2414: if (rcsnum_aton(RCS_TOKSTR(rfp), NULL, lkp->rl_num) < 0) {
2415: cvs_log(LP_ERR, "failed to parse RCS NUM `%s'",
2416: RCS_TOKSTR(rfp));
1.37 tedu 2417: rcsnum_free(lkp->rl_num);
1.76 joris 2418: cvs_strfree(lkp->rl_name);
1.1 jfb 2419: free(lkp);
2420: return (-1);
2421: }
2422:
2423: TAILQ_INSERT_HEAD(&(rfp->rf_locks), lkp, rl_list);
2424: }
2425:
2426: /* check if we have a `strict' */
2427: type = rcs_gettok(rfp);
2428: if (type != RCS_TOK_STRICT) {
2429: rcs_pushtok(rfp, RCS_TOKSTR(rfp), type);
1.14 deraadt 2430: } else {
1.26 jfb 2431: rfp->rf_flags |= RCS_SLOCK;
1.1 jfb 2432:
2433: type = rcs_gettok(rfp);
2434: if (type != RCS_TOK_SCOLON) {
1.50 jfb 2435: rcs_errno = RCS_ERR_PARSE;
1.1 jfb 2436: cvs_log(LP_ERR,
2437: "missing semi-colon after `strict' keyword");
2438: return (-1);
2439: }
2440: }
2441:
2442: return (0);
2443: }
2444:
2445: /*
2446: * rcs_parse_branches()
2447: *
2448: * Parse the list of branches following a `branches' keyword in a delta.
2449: * Returns 0 on success, or -1 on failure.
2450: */
2451: static int
2452: rcs_parse_branches(RCSFILE *rfp, struct rcs_delta *rdp)
2453: {
2454: int type;
2455: struct rcs_branch *brp;
2456:
2457: for (;;) {
2458: type = rcs_gettok(rfp);
2459: if (type == RCS_TOK_SCOLON)
2460: break;
2461:
2462: if (type != RCS_TOK_NUM) {
1.50 jfb 2463: rcs_errno = RCS_ERR_PARSE;
1.1 jfb 2464: cvs_log(LP_ERR,
2465: "unexpected token `%s' in list of branches",
2466: RCS_TOKSTR(rfp));
2467: return (-1);
2468: }
2469:
2470: brp = (struct rcs_branch *)malloc(sizeof(*brp));
2471: if (brp == NULL) {
1.50 jfb 2472: rcs_errno = RCS_ERR_ERRNO;
1.1 jfb 2473: cvs_log(LP_ERRNO, "failed to allocate RCS branch");
2474: return (-1);
2475: }
1.46 jfb 2476: brp->rb_num = rcsnum_parse(RCS_TOKSTR(rfp));
1.11 joris 2477: if (brp->rb_num == NULL) {
2478: free(brp);
2479: return (-1);
2480: }
1.1 jfb 2481:
2482: TAILQ_INSERT_TAIL(&(rdp->rd_branches), brp, rb_list);
2483: }
2484:
2485: return (0);
2486: }
2487:
2488: /*
2489: * rcs_freedelta()
2490: *
2491: * Free the contents of a delta structure.
2492: */
1.18 jfb 2493: static void
1.1 jfb 2494: rcs_freedelta(struct rcs_delta *rdp)
2495: {
1.12 jfb 2496: struct rcs_branch *rb;
1.1 jfb 2497: struct rcs_delta *crdp;
2498:
1.12 jfb 2499: if (rdp->rd_num != NULL)
2500: rcsnum_free(rdp->rd_num);
2501: if (rdp->rd_next != NULL)
2502: rcsnum_free(rdp->rd_next);
2503:
1.1 jfb 2504: if (rdp->rd_author != NULL)
1.39 joris 2505: cvs_strfree(rdp->rd_author);
1.1 jfb 2506: if (rdp->rd_state != NULL)
1.39 joris 2507: cvs_strfree(rdp->rd_state);
1.1 jfb 2508: if (rdp->rd_log != NULL)
1.39 joris 2509: cvs_strfree(rdp->rd_log);
1.1 jfb 2510: if (rdp->rd_text != NULL)
1.45 jfb 2511: free(rdp->rd_text);
1.12 jfb 2512:
2513: while ((rb = TAILQ_FIRST(&(rdp->rd_branches))) != NULL) {
2514: TAILQ_REMOVE(&(rdp->rd_branches), rb, rb_list);
2515: rcsnum_free(rb->rb_num);
2516: free(rb);
2517: }
1.1 jfb 2518:
2519: while ((crdp = TAILQ_FIRST(&(rdp->rd_snodes))) != NULL) {
2520: TAILQ_REMOVE(&(rdp->rd_snodes), crdp, rd_list);
2521: rcs_freedelta(crdp);
2522: }
2523:
2524: free(rdp);
2525: }
2526:
2527: /*
2528: * rcs_freepdata()
2529: *
2530: * Free the contents of the parser data structure.
2531: */
2532: static void
2533: rcs_freepdata(struct rcs_pdata *pd)
2534: {
2535: if (pd->rp_file != NULL)
2536: (void)fclose(pd->rp_file);
2537: if (pd->rp_buf != NULL)
2538: free(pd->rp_buf);
2539: free(pd);
2540: }
2541:
2542: /*
2543: * rcs_gettok()
2544: *
2545: * Get the next RCS token from the string <str>.
2546: */
2547: static int
2548: rcs_gettok(RCSFILE *rfp)
2549: {
2550: u_int i;
2551: int ch, last, type;
1.18 jfb 2552: size_t len;
2553: char *bp;
1.1 jfb 2554: struct rcs_pdata *pdp = (struct rcs_pdata *)rfp->rf_pdata;
2555:
2556: type = RCS_TOK_ERR;
2557: bp = pdp->rp_buf;
1.42 jfb 2558: pdp->rp_tlen = 0;
1.1 jfb 2559: *bp = '\0';
2560:
2561: if (pdp->rp_pttype != RCS_TOK_ERR) {
2562: type = pdp->rp_pttype;
2563: strlcpy(pdp->rp_buf, pdp->rp_ptok, pdp->rp_blen);
2564: pdp->rp_pttype = RCS_TOK_ERR;
2565: return (type);
2566: }
2567:
2568: /* skip leading whitespace */
2569: /* XXX we must skip backspace too for compatibility, should we? */
2570: do {
2571: ch = getc(pdp->rp_file);
2572: if (ch == '\n')
1.18 jfb 2573: pdp->rp_lines++;
1.1 jfb 2574: } while (isspace(ch));
2575:
2576: if (ch == EOF) {
2577: type = RCS_TOK_EOF;
1.14 deraadt 2578: } else if (ch == ';') {
1.1 jfb 2579: type = RCS_TOK_SCOLON;
1.14 deraadt 2580: } else if (ch == ':') {
1.1 jfb 2581: type = RCS_TOK_COLON;
1.14 deraadt 2582: } else if (isalpha(ch)) {
1.31 jfb 2583: type = RCS_TOK_ID;
1.1 jfb 2584: *(bp++) = ch;
1.18 jfb 2585: for (;;) {
1.1 jfb 2586: ch = getc(pdp->rp_file);
1.11 joris 2587: if (!isalnum(ch) && ch != '_' && ch != '-') {
1.1 jfb 2588: ungetc(ch, pdp->rp_file);
2589: break;
2590: }
2591: *(bp++) = ch;
1.42 jfb 2592: pdp->rp_tlen++;
1.18 jfb 2593: if (bp == pdp->rp_bufend - 1) {
2594: len = bp - pdp->rp_buf;
2595: if (rcs_growbuf(rfp) < 0) {
2596: type = RCS_TOK_ERR;
2597: break;
2598: }
2599: bp = pdp->rp_buf + len;
2600: }
1.1 jfb 2601: }
2602: *bp = '\0';
2603:
1.18 jfb 2604: if (type != RCS_TOK_ERR) {
2605: for (i = 0; i < RCS_NKEYS; i++) {
2606: if (strcmp(rcs_keys[i].rk_str,
2607: pdp->rp_buf) == 0) {
2608: type = rcs_keys[i].rk_id;
2609: break;
2610: }
1.1 jfb 2611: }
2612: }
1.14 deraadt 2613: } else if (ch == '@') {
1.1 jfb 2614: /* we have a string */
1.18 jfb 2615: type = RCS_TOK_STRING;
1.1 jfb 2616: for (;;) {
2617: ch = getc(pdp->rp_file);
2618: if (ch == '@') {
2619: ch = getc(pdp->rp_file);
2620: if (ch != '@') {
2621: ungetc(ch, pdp->rp_file);
2622: break;
2623: }
1.14 deraadt 2624: } else if (ch == '\n')
1.18 jfb 2625: pdp->rp_lines++;
1.1 jfb 2626:
2627: *(bp++) = ch;
1.42 jfb 2628: pdp->rp_tlen++;
1.18 jfb 2629: if (bp == pdp->rp_bufend - 1) {
2630: len = bp - pdp->rp_buf;
2631: if (rcs_growbuf(rfp) < 0) {
2632: type = RCS_TOK_ERR;
2633: break;
2634: }
2635: bp = pdp->rp_buf + len;
2636: }
1.1 jfb 2637: }
2638:
2639: *bp = '\0';
1.14 deraadt 2640: } else if (isdigit(ch)) {
1.1 jfb 2641: *(bp++) = ch;
2642: last = ch;
2643: type = RCS_TOK_NUM;
2644:
2645: for (;;) {
2646: ch = getc(pdp->rp_file);
1.18 jfb 2647: if (bp == pdp->rp_bufend)
1.1 jfb 2648: break;
2649: if (!isdigit(ch) && ch != '.') {
2650: ungetc(ch, pdp->rp_file);
2651: break;
2652: }
2653:
2654: if (last == '.' && ch == '.') {
2655: type = RCS_TOK_ERR;
2656: break;
2657: }
2658: last = ch;
2659: *(bp++) = ch;
1.42 jfb 2660: pdp->rp_tlen++;
1.1 jfb 2661: }
1.18 jfb 2662: *bp = '\0';
1.1 jfb 2663: }
2664:
2665: return (type);
2666: }
2667:
2668: /*
2669: * rcs_pushtok()
2670: *
2671: * Push a token back in the parser's token buffer.
2672: */
2673: static int
2674: rcs_pushtok(RCSFILE *rfp, const char *tok, int type)
2675: {
2676: struct rcs_pdata *pdp = (struct rcs_pdata *)rfp->rf_pdata;
2677:
2678: if (pdp->rp_pttype != RCS_TOK_ERR)
2679: return (-1);
2680:
2681: pdp->rp_pttype = type;
2682: strlcpy(pdp->rp_ptok, tok, sizeof(pdp->rp_ptok));
2683: return (0);
2684: }
2685:
2686:
2687: /*
2688: * rcs_splitlines()
2689: *
2690: * Split the contents of a file into a list of lines.
2691: */
2692: static struct rcs_foo*
2693: rcs_splitlines(const char *fcont)
2694: {
2695: char *dcp;
2696: struct rcs_foo *foo;
2697: struct rcs_line *lp;
2698:
2699: foo = (struct rcs_foo *)malloc(sizeof(*foo));
2700: if (foo == NULL) {
2701: cvs_log(LP_ERR, "failed to allocate line structure");
2702: return (NULL);
2703: }
2704: TAILQ_INIT(&(foo->rl_lines));
2705: foo->rl_nblines = 0;
2706: foo->rl_data = strdup(fcont);
2707: if (foo->rl_data == NULL) {
2708: cvs_log(LP_ERRNO, "failed to copy file contents");
2709: free(foo);
2710: return (NULL);
2711: }
2712:
2713: /*
2714: * Add a first bogus line with line number 0. This is used so we
2715: * can position the line pointer before 1 when changing the first line
2716: * in rcs_patch().
2717: */
2718: lp = (struct rcs_line *)malloc(sizeof(*lp));
1.38 joris 2719: if (lp == NULL) {
2720: rcs_freefoo(foo);
1.1 jfb 2721: return (NULL);
1.38 joris 2722: }
1.5 vincent 2723:
1.1 jfb 2724: lp->rl_line = NULL;
2725: lp->rl_lineno = 0;
2726: TAILQ_INSERT_TAIL(&(foo->rl_lines), lp, rl_list);
2727:
2728:
2729: for (dcp = foo->rl_data; *dcp != '\0';) {
2730: lp = (struct rcs_line *)malloc(sizeof(*lp));
2731: if (lp == NULL) {
1.38 joris 2732: rcs_freefoo(foo);
1.1 jfb 2733: cvs_log(LP_ERR, "failed to allocate line entry");
2734: return (NULL);
2735: }
2736:
2737: lp->rl_line = dcp;
2738: lp->rl_lineno = ++(foo->rl_nblines);
2739: TAILQ_INSERT_TAIL(&(foo->rl_lines), lp, rl_list);
2740:
2741: dcp = strchr(dcp, '\n');
2742: if (dcp == NULL) {
2743: break;
2744: }
2745: *(dcp++) = '\0';
2746: }
2747:
2748: return (foo);
1.5 vincent 2749: }
2750:
2751: static void
2752: rcs_freefoo(struct rcs_foo *fp)
2753: {
2754: struct rcs_line *lp;
2755:
2756: while ((lp = TAILQ_FIRST(&fp->rl_lines)) != NULL) {
2757: TAILQ_REMOVE(&fp->rl_lines, lp, rl_list);
2758: free(lp);
2759: }
2760: free(fp->rl_data);
2761: free(fp);
1.18 jfb 2762: }
2763:
2764: /*
2765: * rcs_growbuf()
2766: *
2767: * Attempt to grow the internal parse buffer for the RCS file <rf> by
2768: * RCS_BUFEXTSIZE.
2769: * In case of failure, the original buffer is left unmodified.
2770: * Returns 0 on success, or -1 on failure.
2771: */
2772: static int
2773: rcs_growbuf(RCSFILE *rf)
2774: {
2775: void *tmp;
2776: struct rcs_pdata *pdp = (struct rcs_pdata *)rf->rf_pdata;
2777:
2778: tmp = realloc(pdp->rp_buf, pdp->rp_blen + RCS_BUFEXTSIZE);
2779: if (tmp == NULL) {
1.50 jfb 2780: rcs_errno = RCS_ERR_ERRNO;
1.18 jfb 2781: cvs_log(LP_ERRNO, "failed to grow RCS parse buffer");
2782: return (-1);
2783: }
2784:
2785: pdp->rp_buf = (char *)tmp;
2786: pdp->rp_blen += RCS_BUFEXTSIZE;
2787: pdp->rp_bufend = pdp->rp_buf + pdp->rp_blen - 1;
1.42 jfb 2788:
2789: return (0);
2790: }
2791:
2792: /*
2793: * rcs_strprint()
2794: *
2795: * Output an RCS string <str> of size <slen> to the stream <stream>. Any
2796: * '@' characters are escaped. Otherwise, the string can contain arbitrary
2797: * binary data.
2798: */
2799: static int
2800: rcs_strprint(const u_char *str, size_t slen, FILE *stream)
2801: {
2802: const u_char *ap, *ep, *sp;
2803: size_t ret;
1.52 jfb 2804:
2805: if (slen == 0)
2806: return (0);
1.42 jfb 2807:
2808: ep = str + slen - 1;
2809:
2810: for (sp = str; sp <= ep;) {
2811: ap = memchr(sp, '@', ep - sp);
2812: if (ap == NULL)
2813: ap = ep;
2814: ret = fwrite(sp, sizeof(u_char), ap - sp + 1, stream);
2815:
2816: if (*ap == '@')
2817: putc('@', stream);
2818: sp = ap + 1;
1.63 joris 2819: }
2820:
2821: return (0);
2822: }
2823:
2824: /*
2825: * rcs_expand_keywords()
2826: *
2827: * Expand any RCS keywords in <line> into <out>
2828: */
2829: static int
2830: rcs_expand_keywords(char *rcsfile, struct rcs_delta *rdp, char *line, char *out,
2831: size_t len, int mode)
2832: {
2833: int kwtype;
2834: u_int i, j, found;
2835: char *c, *kwstr, *start;
2836: char expbuf[128], buf[128];
2837:
1.65 niallo 2838: kwtype = 0;
2839: kwstr = NULL;
1.63 joris 2840: i = 0;
2841:
2842: /*
2843: * Keyword formats:
2844: * $Keyword$
2845: * $Keyword: value$
2846: */
2847: memset(out, '\0', len);
2848: for (c = line; *c != '\0' && i < len; *c++) {
2849: out[i++] = *c;
2850: if (*c == '$') {
2851: /* remember start of this possible keyword */
2852: start = c;
2853:
2854: /* first following character has to be alphanumeric */
2855: *c++;
2856: if (!isalpha(*c)) {
2857: c = start;
2858: continue;
2859: }
2860:
2861: /* look for any matching keywords */
2862: found = 0;
2863: for (j = 0; j < RCS_NKWORDS; j++) {
2864: if (!strncmp(c, rcs_expkw[j].kw_str,
2865: strlen(rcs_expkw[j].kw_str))) {
2866: found = 1;
2867: kwstr = rcs_expkw[j].kw_str;
2868: kwtype = rcs_expkw[j].kw_type;
2869: break;
2870: }
2871: }
2872:
2873: /* unknown keyword, continue looking */
2874: if (found == 0) {
2875: c = start;
2876: continue;
2877: }
2878:
2879: /* next character has to be ':' or '$' */
2880: c += strlen(kwstr);
2881: if (*c != ':' && *c != '$') {
2882: c = start;
2883: continue;
2884: }
2885:
2886: /*
2887: * if the next character was ':' we need to look for
2888: * an '$' before the end of the line to be sure it is
2889: * in fact a keyword.
2890: */
2891: if (*c == ':') {
2892: while (*c++) {
2893: if (*c == '$' || *c == '\n')
2894: break;
2895: }
2896:
2897: if (*c != '$') {
2898: c = start;
2899: continue;
2900: }
2901: }
2902:
2903: /* start constructing the expansion */
2904: expbuf[0] = '\0';
2905:
2906: if (mode & RCS_KWEXP_NAME) {
2907: strlcat(expbuf, "$", sizeof(expbuf));
2908: strlcat(expbuf, kwstr, sizeof(expbuf));
2909: if (mode & RCS_KWEXP_VAL)
2910: strlcat(expbuf, ": ", sizeof(expbuf));
2911: }
2912:
2913: /*
1.80 reyk 2914: * order matters because of RCS_KW_ID and
2915: * RCS_KW_HEADER here
1.63 joris 2916: */
2917: if (mode & RCS_KWEXP_VAL) {
2918: if (kwtype & RCS_KW_RCSFILE) {
2919: if (!(kwtype & RCS_KW_FULLPATH))
1.80 reyk 2920: strlcat(expbuf,
2921: basename(rcsfile),
1.63 joris 2922: sizeof(expbuf));
2923: else
2924: strlcat(expbuf, rcsfile,
2925: sizeof(expbuf));
2926: strlcat(expbuf, " ", sizeof(expbuf));
2927: }
2928:
2929: if (kwtype & RCS_KW_REVISION) {
1.80 reyk 2930: rcsnum_tostr(rdp->rd_num, buf,
2931: sizeof(buf));
1.63 joris 2932: strlcat(buf, " ", sizeof(buf));
2933: strlcat(expbuf, buf, sizeof(expbuf));
2934: }
2935:
2936: if (kwtype & RCS_KW_DATE) {
2937: strftime(buf, sizeof(buf),
1.80 reyk 2938: "%Y/%m/%d %H:%M:%S ",
2939: &rdp->rd_date);
1.63 joris 2940: strlcat(expbuf, buf, sizeof(expbuf));
2941: }
2942:
2943: if (kwtype & RCS_KW_AUTHOR) {
2944: strlcat(expbuf, rdp->rd_author,
2945: sizeof(expbuf));
2946: strlcat(expbuf, " ", sizeof(expbuf));
2947: }
2948:
2949: if (kwtype & RCS_KW_STATE) {
2950: strlcat(expbuf, rdp->rd_state,
2951: sizeof(expbuf));
2952: strlcat(expbuf, " ", sizeof(expbuf));
2953: }
2954:
2955: /* order does not matter anymore below */
2956: if (kwtype & RCS_KW_LOG)
2957: strlcat(expbuf, " ", sizeof(expbuf));
2958:
2959: if (kwtype & RCS_KW_SOURCE) {
1.80 reyk 2960: strlcat(expbuf, rcsfile,
2961: sizeof(expbuf));
1.63 joris 2962: strlcat(expbuf, " ", sizeof(expbuf));
2963: }
2964:
2965: if (kwtype & RCS_KW_NAME)
2966: strlcat(expbuf, " ", sizeof(expbuf));
2967: }
2968:
2969: /* end the expansion */
2970: if (mode & RCS_KWEXP_NAME)
2971: strlcat(expbuf, "$", sizeof(expbuf));
2972:
2973: out[--i] = '\0';
2974: strlcat(out, expbuf, len);
2975: i += strlen(expbuf);
2976: }
1.42 jfb 2977: }
1.81 niallo 2978:
2979: return (0);
2980: }
2981:
2982: /*
2983: * rcs_deltatext_set()
2984: *
2985: * Set deltatext for <rev> in RCS file <rfp> to <dtext>
2986: * Returns -1 on error, 0 on success.
2987: */
2988: int
2989: rcs_deltatext_set(RCSFILE *rfp, RCSNUM *rev, const char *dtext)
2990: {
2991: size_t len;
2992: struct rcs_delta *rdp;
2993:
2994: if ((rdp = rcs_findrev(rfp, rev)) == NULL)
2995: return (-1);
2996:
2997: if (rdp->rd_text != NULL)
2998: free(rdp->rd_text);
2999:
3000: len = strlen(dtext);
3001: if ((rdp->rd_text = (u_char *)malloc(len)) == NULL)
3002: return (-1);
3003:
3004: rdp->rd_tlen = len - 1;
3005: strlcpy(rdp->rd_text, dtext, len);
1.18 jfb 3006:
3007: return (0);
1.1 jfb 3008: }
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