Annotation of src/usr.bin/cvs/util.c, Revision 1.59
1.59 ! joris 1: /* $OpenBSD: util.c,v 1.58 2005/12/03 15:07:21 joris Exp $ */
1.1 jfb 2: /*
3: * Copyright (c) 2004 Jean-Francois Brousseau <jfb@openbsd.org>
1.9 jfb 4: * All rights reserved.
1.1 jfb 5: *
1.9 jfb 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: *
1.9 jfb 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
1.9 jfb 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
1.9 jfb 24: * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
1.1 jfb 25: */
26:
27: #include <sys/types.h>
28: #include <sys/stat.h>
1.12 krapht 29: #include <sys/wait.h>
1.1 jfb 30:
31: #include <errno.h>
1.2 jfb 32: #include <fcntl.h>
1.31 xsa 33: #include <md5.h>
1.1 jfb 34: #include <stdio.h>
35: #include <stdlib.h>
1.31 xsa 36: #include <string.h>
1.1 jfb 37: #include <unistd.h>
38:
39: #include "cvs.h"
40: #include "log.h"
41:
1.54 joris 42: #if !defined(RCSPROG)
43:
1.1 jfb 44: /* letter -> mode type map */
45: static const int cvs_modetypes[26] = {
46: -1, -1, -1, -1, -1, -1, 1, -1, -1, -1, -1, -1, -1,
47: -1, 2, -1, -1, -1, -1, -1, 0, -1, -1, -1, -1, -1,
48: };
49:
50: /* letter -> mode map */
51: static const mode_t cvs_modes[3][26] = {
52: {
53: 0, 0, 0, 0, 0, 0, 0, /* a - g */
54: 0, 0, 0, 0, 0, 0, 0, /* h - m */
55: 0, 0, 0, S_IRUSR, 0, 0, 0, /* n - u */
56: 0, S_IWUSR, S_IXUSR, 0, 0 /* v - z */
57: },
58: {
59: 0, 0, 0, 0, 0, 0, 0, /* a - g */
60: 0, 0, 0, 0, 0, 0, 0, /* h - m */
61: 0, 0, 0, S_IRGRP, 0, 0, 0, /* n - u */
62: 0, S_IWGRP, S_IXGRP, 0, 0 /* v - z */
63: },
64: {
65: 0, 0, 0, 0, 0, 0, 0, /* a - g */
66: 0, 0, 0, 0, 0, 0, 0, /* h - m */
67: 0, 0, 0, S_IROTH, 0, 0, 0, /* n - u */
68: 0, S_IWOTH, S_IXOTH, 0, 0 /* v - z */
69: }
70: };
71:
72:
73: /* octal -> string */
74: static const char *cvs_modestr[8] = {
75: "", "x", "w", "wx", "r", "rx", "rw", "rwx"
76: };
77:
1.11 krapht 78:
1.1 jfb 79:
80: /*
81: * cvs_readrepo()
82: *
83: * Read the path stored in the `Repository' CVS file for a given directory
84: * <dir>, and store that path into the buffer pointed to by <dst>, whose size
85: * is <len>.
86: */
87: int
88: cvs_readrepo(const char *dir, char *dst, size_t len)
89: {
1.37 xsa 90: size_t dlen, l;
1.1 jfb 91: FILE *fp;
92: char repo_path[MAXPATHLEN];
93:
1.37 xsa 94: l = cvs_path_cat(dir, "CVS/Repository", repo_path, sizeof(repo_path));
95: if (l >= sizeof(repo_path))
1.21 xsa 96: return (NULL);
97:
1.1 jfb 98: fp = fopen(repo_path, "r");
1.21 xsa 99: if (fp == NULL)
1.1 jfb 100: return (-1);
101:
102: if (fgets(dst, (int)len, fp) == NULL) {
103: if (ferror(fp)) {
104: cvs_log(LP_ERRNO, "failed to read from `%s'",
105: repo_path);
106: }
107: (void)fclose(fp);
108: return (-1);
109: }
110: dlen = strlen(dst);
111: if ((dlen > 0) && (dst[dlen - 1] == '\n'))
112: dst[--dlen] = '\0';
113:
114: (void)fclose(fp);
115: return (0);
1.9 jfb 116: }
117:
118:
119: /*
1.1 jfb 120: * cvs_strtomode()
121: *
122: * Read the contents of the string <str> and generate a permission mode from
123: * the contents of <str>, which is assumed to have the mode format of CVS.
124: * The CVS protocol specification states that any modes or mode types that are
125: * not recognized should be silently ignored. This function does not return
126: * an error in such cases, but will issue warnings.
127: * Returns 0 on success, or -1 on failure.
128: */
129: int
130: cvs_strtomode(const char *str, mode_t *mode)
131: {
1.2 jfb 132: char type;
1.1 jfb 133: mode_t m;
134: char buf[32], ms[4], *sp, *ep;
135:
136: m = 0;
1.30 jfb 137: if (strlcpy(buf, str, sizeof(buf)) >= sizeof(buf)) {
138: return (-1);
139: }
1.1 jfb 140: sp = buf;
141: ep = sp;
142:
143: for (sp = buf; ep != NULL; sp = ep + 1) {
144: ep = strchr(sp, ',');
145: if (ep != NULL)
1.2 jfb 146: *ep = '\0';
1.1 jfb 147:
1.14 weingart 148: memset(ms, 0, sizeof ms);
149: if (sscanf(sp, "%c=%3s", &type, ms) != 2 &&
150: sscanf(sp, "%c=", &type) != 1) {
1.1 jfb 151: cvs_log(LP_WARN, "failed to scan mode string `%s'", sp);
152: continue;
153: }
154:
155: if ((type <= 'a') || (type >= 'z') ||
156: (cvs_modetypes[type - 'a'] == -1)) {
157: cvs_log(LP_WARN,
158: "invalid mode type `%c'"
159: " (`u', `g' or `o' expected), ignoring", type);
160: continue;
161: }
162:
163: /* make type contain the actual mode index */
164: type = cvs_modetypes[type - 'a'];
165:
166: for (sp = ms; *sp != '\0'; sp++) {
167: if ((*sp <= 'a') || (*sp >= 'z') ||
1.5 jfb 168: (cvs_modes[(int)type][*sp - 'a'] == 0)) {
1.1 jfb 169: cvs_log(LP_WARN,
170: "invalid permission bit `%c'", *sp);
1.15 deraadt 171: } else
1.5 jfb 172: m |= cvs_modes[(int)type][*sp - 'a'];
1.1 jfb 173: }
174: }
175:
176: *mode = m;
177:
178: return (0);
179: }
180:
181:
182: /*
183: * cvs_modetostr()
184: *
1.30 jfb 185: * Generate a CVS-format string to represent the permissions mask on a file
186: * from the mode <mode> and store the result in <buf>, which can accept up to
187: * <len> bytes (including the terminating NUL byte). The result is guaranteed
188: * to be NUL-terminated.
1.1 jfb 189: * Returns 0 on success, or -1 on failure.
190: */
191: int
192: cvs_modetostr(mode_t mode, char *buf, size_t len)
193: {
194: size_t l;
195: char tmp[16], *bp;
196: mode_t um, gm, om;
197:
198: um = (mode & S_IRWXU) >> 6;
199: gm = (mode & S_IRWXG) >> 3;
200: om = mode & S_IRWXO;
201:
202: bp = buf;
203: *bp = '\0';
204: l = 0;
205:
206: if (um) {
207: snprintf(tmp, sizeof(tmp), "u=%s", cvs_modestr[um]);
1.9 jfb 208: l = strlcat(buf, tmp, len);
1.1 jfb 209: }
210: if (gm) {
211: if (um)
212: strlcat(buf, ",", len);
213: snprintf(tmp, sizeof(tmp), "g=%s", cvs_modestr[gm]);
1.9 jfb 214: strlcat(buf, tmp, len);
1.1 jfb 215: }
216: if (om) {
217: if (um || gm)
218: strlcat(buf, ",", len);
219: snprintf(tmp, sizeof(tmp), "o=%s", cvs_modestr[gm]);
1.9 jfb 220: strlcat(buf, tmp, len);
1.1 jfb 221: }
222:
223: return (0);
224: }
225:
226: /*
227: * cvs_cksum()
228: *
229: * Calculate the MD5 checksum of the file whose path is <file> and generate
230: * a CVS-format 32 hex-digit string, which is stored in <dst>, whose size is
231: * given in <len> and must be at least 33.
232: * Returns 0 on success, or -1 on failure.
233: */
234: int
235: cvs_cksum(const char *file, char *dst, size_t len)
236: {
237: if (len < CVS_CKSUM_LEN) {
238: cvs_log(LP_WARN, "buffer too small for checksum");
239: return (-1);
240: }
241: if (MD5File(file, dst) == NULL) {
1.19 jfb 242: cvs_log(LP_ERRNO, "failed to generate checksum for %s", file);
1.1 jfb 243: return (-1);
244: }
245:
246: return (0);
247: }
248:
249: /*
250: * cvs_splitpath()
251: *
1.7 jfb 252: * Split a path <path> into the base portion and the filename portion.
253: * The path is copied in <base> and the last delimiter is replaced by a NUL
254: * byte. The <file> pointer is set to point to the first character after
255: * that delimiter.
1.1 jfb 256: * Returns 0 on success, or -1 on failure.
257: */
258: int
1.7 jfb 259: cvs_splitpath(const char *path, char *base, size_t blen, char **file)
1.1 jfb 260: {
261: size_t rlen;
1.7 jfb 262: char *sp;
1.1 jfb 263:
1.7 jfb 264: if ((rlen = strlcpy(base, path, blen)) >= blen)
265: return (-1);
1.6 jfb 266:
1.7 jfb 267: while ((rlen > 0) && (base[rlen - 1] == '/'))
268: base[--rlen] = '\0';
269:
270: sp = strrchr(base, '/');
1.1 jfb 271: if (sp == NULL) {
1.7 jfb 272: strlcpy(base, "./", blen);
273: strlcat(base, path, blen);
274: sp = base + 1;
1.1 jfb 275: }
276:
1.7 jfb 277: *sp = '\0';
278: if (file != NULL)
279: *file = sp + 1;
1.1 jfb 280:
281: return (0);
282: }
283:
284: /*
285: * cvs_getargv()
286: *
287: * Parse a line contained in <line> and generate an argument vector by
288: * splitting the line on spaces and tabs. The resulting vector is stored in
289: * <argv>, which can accept up to <argvlen> entries.
1.20 david 290: * Returns the number of arguments in the vector, or -1 if an error occurred.
1.1 jfb 291: */
292: int
293: cvs_getargv(const char *line, char **argv, int argvlen)
294: {
295: u_int i;
296: int argc, err;
297: char linebuf[256], qbuf[128], *lp, *cp, *arg;
298:
299: strlcpy(linebuf, line, sizeof(linebuf));
1.27 pat 300: memset(argv, 0, argvlen * sizeof(char *));
1.1 jfb 301: argc = 0;
302:
303: /* build the argument vector */
304: err = 0;
305: for (lp = linebuf; lp != NULL;) {
306: if (*lp == '"') {
307: /* double-quoted string */
308: lp++;
309: i = 0;
310: memset(qbuf, 0, sizeof(qbuf));
311: while (*lp != '"') {
1.16 jfb 312: if (*lp == '\\')
313: lp++;
1.1 jfb 314: if (*lp == '\0') {
315: cvs_log(LP_ERR, "no terminating quote");
316: err++;
317: break;
1.16 jfb 318: }
1.1 jfb 319:
1.9 jfb 320: qbuf[i++] = *lp++;
1.1 jfb 321: if (i == sizeof(qbuf)) {
322: err++;
323: break;
324: }
325: }
326:
327: arg = qbuf;
1.15 deraadt 328: } else {
1.1 jfb 329: cp = strsep(&lp, " \t");
330: if (cp == NULL)
331: break;
332: else if (*cp == '\0')
333: continue;
334:
335: arg = cp;
336: }
337:
1.16 jfb 338: if (argc == argvlen) {
339: err++;
340: break;
341: }
342:
1.59 ! joris 343: argv[argc] = xstrdup(arg);
1.1 jfb 344: argc++;
345: }
346:
1.43 xsa 347: if (err != 0) {
1.1 jfb 348: /* ditch the argument vector */
349: for (i = 0; i < (u_int)argc; i++)
1.59 ! joris 350: xfree(argv[i]);
1.1 jfb 351: argc = -1;
352: }
353:
354: return (argc);
1.17 jfb 355: }
356:
357:
358: /*
359: * cvs_makeargv()
360: *
1.20 david 361: * Allocate an argument vector large enough to accommodate for all the
1.17 jfb 362: * arguments found in <line> and return it.
363: */
1.42 xsa 364: char **
1.17 jfb 365: cvs_makeargv(const char *line, int *argc)
366: {
367: int i, ret;
368: char *argv[1024], **copy;
1.27 pat 369: size_t size;
1.17 jfb 370:
371: ret = cvs_getargv(line, argv, 1024);
372: if (ret == -1)
373: return (NULL);
374:
1.27 pat 375: size = (ret + 1) * sizeof(char *);
1.59 ! joris 376: copy = (char **)xmalloc(size);
1.27 pat 377: memset(copy, 0, size);
1.17 jfb 378:
379: for (i = 0; i < ret; i++)
380: copy[i] = argv[i];
381: copy[ret] = NULL;
382:
383: *argc = ret;
384: return (copy);
1.1 jfb 385: }
386:
387:
388: /*
389: * cvs_freeargv()
390: *
391: * Free an argument vector previously generated by cvs_getargv().
392: */
393: void
394: cvs_freeargv(char **argv, int argc)
395: {
396: int i;
397:
398: for (i = 0; i < argc; i++)
1.16 jfb 399: if (argv[i] != NULL)
1.59 ! joris 400: xfree(argv[i]);
1.2 jfb 401: }
402:
403:
404: /*
405: * cvs_mkadmin()
406: *
1.5 jfb 407: * Create the CVS administrative files within the directory <cdir>. If the
408: * files already exist, they are kept as is.
1.2 jfb 409: * Returns 0 on success, or -1 on failure.
410: */
411: int
1.52 xsa 412: cvs_mkadmin(const char *dpath, const char *rootpath, const char *repopath,
413: char *tag, char *date, int nb)
1.2 jfb 414: {
1.37 xsa 415: size_t l;
1.28 joris 416: char path[MAXPATHLEN];
1.2 jfb 417: FILE *fp;
418: CVSENTRIES *ef;
1.5 jfb 419: struct stat st;
1.13 jfb 420:
1.52 xsa 421: cvs_log(LP_TRACE, "cvs_mkadmin(%s, %s, %s, %s, %s, %d)",
422: dpath, rootpath, repopath, tag ? tag : "", date ? date : "", nb);
423:
1.37 xsa 424: l = cvs_path_cat(dpath, CVS_PATH_CVSDIR, path, sizeof(path));
425: if (l >= sizeof(path))
1.21 xsa 426: return (-1);
427:
1.28 joris 428: if ((mkdir(path, 0755) == -1) && (errno != EEXIST)) {
1.2 jfb 429: cvs_log(LP_ERRNO, "failed to create directory %s", path);
430: return (-1);
431: }
432:
1.5 jfb 433: /* just create an empty Entries file */
1.13 jfb 434: ef = cvs_ent_open(dpath, O_WRONLY);
1.48 moritz 435: if (ef != NULL)
436: cvs_ent_close(ef);
1.2 jfb 437:
1.37 xsa 438: l = cvs_path_cat(dpath, CVS_PATH_ROOTSPEC, path, sizeof(path));
439: if (l >= sizeof(path))
1.21 xsa 440: return (-1);
441:
1.47 xsa 442: if ((stat(path, &st) == -1) && (errno == ENOENT)) {
1.5 jfb 443: fp = fopen(path, "w");
444: if (fp == NULL) {
445: cvs_log(LP_ERRNO, "failed to open %s", path);
446: return (-1);
447: }
1.28 joris 448: if (rootpath != NULL)
449: fprintf(fp, "%s\n", rootpath);
1.5 jfb 450: (void)fclose(fp);
1.2 jfb 451: }
452:
1.37 xsa 453: l = cvs_path_cat(dpath, CVS_PATH_REPOSITORY, path, sizeof(path));
454: if (l >= sizeof(path))
1.21 xsa 455: return (-1);
456:
1.47 xsa 457: if ((stat(path, &st) == -1) && (errno == ENOENT)) {
1.2 jfb 458: fp = fopen(path, "w");
459: if (fp == NULL) {
460: cvs_log(LP_ERRNO, "failed to open %s", path);
461: return (-1);
462: }
1.28 joris 463: if (repopath != NULL)
464: fprintf(fp, "%s\n", repopath);
1.2 jfb 465: (void)fclose(fp);
466: }
467:
1.52 xsa 468: /* create CVS/Tag file (if needed) */
1.56 joris 469: /* XXX correct? */
470: if (tag != NULL || date != NULL)
471: (void)cvs_write_tagfile(tag, date, nb);
1.52 xsa 472:
1.2 jfb 473: return (0);
1.11 krapht 474: }
475:
476:
477: /*
478: * cvs_exec()
479: */
480: int
481: cvs_exec(int argc, char **argv, int fds[3])
482: {
483: int ret;
484: pid_t pid;
485:
486: if ((pid = fork()) == -1) {
487: cvs_log(LP_ERRNO, "failed to fork");
488: return (-1);
489: } else if (pid == 0) {
490: execvp(argv[0], argv);
1.13 jfb 491: cvs_log(LP_ERRNO, "failed to exec %s", argv[0]);
492: exit(1);
1.11 krapht 493: }
494:
495: if (waitpid(pid, &ret, 0) == -1)
1.13 jfb 496: cvs_log(LP_ERRNO, "failed to waitpid");
1.11 krapht 497:
498: return (ret);
1.38 xsa 499: }
500:
501: /*
502: * cvs_chdir()
503: *
504: * Change to directory.
505: * chdir() wrapper with an error message.
506: * Returns 0 on success, or -1 on failure.
1.50 xsa 507: */
1.38 xsa 508: int
509: cvs_chdir(const char *path)
510: {
511: if (chdir(path) == -1) {
512: cvs_log(LP_ERRNO, "cannot change to dir `%s'", path);
1.49 xsa 513: return (-1);
514: }
515:
516: return (0);
517: }
518:
519: /*
520: * cvs_rename()
521: * Change the name of a file.
522: * rename() wrapper with an error message.
523: * Returns 0 on success, or -1 on failure.
524: */
525: int
526: cvs_rename(const char *from, const char *to)
527: {
528: cvs_log(LP_TRACE, "cvs_rename(%s,%s)", from, to);
529:
530: if (cvs_noexec == 1)
531: return (0);
532:
533: if (rename(from, to) == -1) {
534: cvs_log(LP_ERRNO, "cannot rename file `%s' to `%s'", from, to);
1.40 xsa 535: return (-1);
536: }
537:
538: return (0);
539: }
540:
541: /*
542: * cvs_unlink()
543: *
544: * Removes the link named by <path>.
545: * unlink() wrapper with an error message.
546: * Returns 0 on success, or -1 on failure.
547: */
548: int
549: cvs_unlink(const char *path)
550: {
551: cvs_log(LP_TRACE, "cvs_unlink(%s)", path);
552:
553: if (cvs_noexec == 1)
554: return (0);
555:
1.44 joris 556: if ((unlink(path) == -1) && (errno != ENOENT)) {
1.40 xsa 557: cvs_log(LP_ERRNO, "cannot remove `%s'", path);
1.38 xsa 558: return (-1);
559: }
560:
561: return (0);
1.1 jfb 562: }
1.24 joris 563:
564: /*
1.45 xsa 565: * cvs_rmdir()
1.30 jfb 566: *
567: * Remove a directory tree from disk.
568: * Returns 0 on success, or -1 on failure.
1.24 joris 569: */
570: int
1.45 xsa 571: cvs_rmdir(const char *path)
1.24 joris 572: {
1.33 pat 573: int ret = -1;
1.30 jfb 574: size_t len;
1.24 joris 575: DIR *dirp;
576: struct dirent *ent;
577: char fpath[MAXPATHLEN];
1.46 xsa 578:
579: cvs_log(LP_TRACE, "cvs_rmdir(%s)", path);
580:
581: if (cvs_noexec == 1)
582: return (0);
1.24 joris 583:
584: if ((dirp = opendir(path)) == NULL) {
585: cvs_log(LP_ERRNO, "failed to open '%s'", path);
1.30 jfb 586: return (-1);
1.24 joris 587: }
588:
589: while ((ent = readdir(dirp)) != NULL) {
590: if (!strcmp(ent->d_name, ".") ||
591: !strcmp(ent->d_name, ".."))
592: continue;
593:
1.30 jfb 594: len = cvs_path_cat(path, ent->d_name, fpath, sizeof(fpath));
1.33 pat 595: if (len >= sizeof(fpath))
596: goto done;
1.24 joris 597:
598: if (ent->d_type == DT_DIR) {
1.45 xsa 599: if (cvs_rmdir(fpath) == -1)
1.33 pat 600: goto done;
1.41 xsa 601: } else if ((cvs_unlink(fpath) == -1) && (errno != ENOENT))
1.33 pat 602: goto done;
1.24 joris 603: }
604:
605:
1.30 jfb 606: if ((rmdir(path) == -1) && (errno != ENOENT)) {
1.24 joris 607: cvs_log(LP_ERRNO, "failed to remove '%s'", path);
1.33 pat 608: goto done;
1.30 jfb 609: }
1.24 joris 610:
1.33 pat 611: ret = 0;
612: done:
613: closedir(dirp);
1.34 joris 614: return (ret);
615: }
616:
617: /*
618: * Create a directory, and the parent directories if needed.
619: * based upon mkpath() from mkdir.c
620: */
621: int
622: cvs_create_dir(const char *path, int create_adm, char *root, char *repo)
623: {
624: size_t l;
625: int len, ret;
626: char *d, *s;
627: struct stat sb;
628: char rpath[MAXPATHLEN], entry[MAXPATHLEN];
629: CVSENTRIES *entf;
630: struct cvs_ent *ent;
631:
1.56 joris 632: if (create_adm == 1 && (root == NULL)) {
1.34 joris 633: cvs_log(LP_ERR, "missing stuff in cvs_create_dir");
634: return (-1);
635: }
636:
1.59 ! joris 637: s = xstrdup(path);
1.56 joris 638: rpath[0] = '\0';
639: if (repo != NULL) {
640: if (strlcpy(rpath, repo, sizeof(rpath)) >= sizeof(rpath)) {
641: errno = ENAMETOOLONG;
642: cvs_log(LP_ERRNO, "%s", rpath);
1.59 ! joris 643: xfree(s);
1.56 joris 644: return (-1);
645: }
646:
647: if (strlcat(rpath, "/", sizeof(rpath)) >= sizeof(rpath)) {
648: errno = ENAMETOOLONG;
649: cvs_log(LP_ERRNO, "%s", rpath);
1.59 ! joris 650: xfree(s);
1.56 joris 651: return (-1);
652: }
1.34 joris 653: }
654:
655: ret = -1;
656: entf = NULL;
657: d = strtok(s, "/");
658: while (d != NULL) {
659: if (stat(d, &sb)) {
660: /* try to create the directory */
661: if ((errno != ENOENT) || (mkdir(d, 0755) &&
662: errno != EEXIST)) {
663: cvs_log(LP_ERRNO, "failed to create `%s'", d);
664: goto done;
665: }
666: } else if (!S_ISDIR(sb.st_mode)) {
667: cvs_log(LP_ERR, "`%s' not a directory", d);
668: goto done;
669: }
670:
671: /*
672: * Create administrative files if requested.
673: */
1.43 xsa 674: if (create_adm == 1) {
1.34 joris 675: l = strlcat(rpath, d, sizeof(rpath));
676: if (l >= sizeof(rpath))
677: goto done;
678:
679: l = strlcat(rpath, "/", sizeof(rpath));
680: if (l >= sizeof(rpath))
681: goto done;
682:
1.52 xsa 683: if (cvs_mkadmin(d, root, rpath, NULL, NULL, 0) < 0) {
1.34 joris 684: cvs_log(LP_ERR, "failed to create adm files");
685: goto done;
686: }
687: }
688:
689: /*
690: * Add it to the parent directory entry file.
691: * (if any).
692: */
693: entf = cvs_ent_open(".", O_RDWR);
694: if (entf != NULL && strcmp(d, ".")) {
695: len = snprintf(entry, sizeof(entry), "D/%s////", d);
696: if (len == -1 || len >= (int)sizeof(entry)) {
697: errno = ENAMETOOLONG;
698: cvs_log(LP_ERRNO, "%s", entry);
699: goto done;
700: }
701:
702: if ((ent = cvs_ent_parse(entry)) == NULL) {
703: cvs_log(LP_ERR, "failed to parse entry");
704: goto done;
705: }
706:
1.56 joris 707: cvs_ent_remove(entf, d, 0);
1.34 joris 708:
709: if (cvs_ent_add(entf, ent) < 0) {
710: cvs_log(LP_ERR, "failed to add entry");
711: goto done;
712: }
713: }
714:
715: if (entf != NULL) {
716: cvs_ent_close(entf);
717: entf = NULL;
718: }
719:
720: /*
721: * All went ok, switch to the newly created directory.
722: */
1.39 xsa 723: if (cvs_chdir(d) == -1)
1.34 joris 724: goto done;
725:
726: d = strtok(NULL, "/");
727: }
728:
729: ret = 0;
730: done:
731: if (entf != NULL)
732: cvs_ent_close(entf);
1.59 ! joris 733: xfree(s);
1.33 pat 734: return (ret);
1.24 joris 735: }
736:
1.30 jfb 737: /*
738: * cvs_path_cat()
739: *
740: * Concatenate the two paths <base> and <end> and store the generated path
741: * into the buffer <dst>, which can accept up to <dlen> bytes, including the
742: * NUL byte. The result is guaranteed to be NUL-terminated.
743: * Returns the number of bytes necessary to store the full resulting path,
744: * not including the NUL byte (a value equal to or larger than <dlen>
745: * indicates truncation).
746: */
1.29 jfb 747: size_t
748: cvs_path_cat(const char *base, const char *end, char *dst, size_t dlen)
749: {
750: size_t len;
751:
752: len = strlcpy(dst, base, dlen);
753: if (len >= dlen - 1) {
754: errno = ENAMETOOLONG;
755: cvs_log(LP_ERRNO, "%s", dst);
756: } else {
757: dst[len] = '/';
758: dst[len + 1] = '\0';
759: len = strlcat(dst, end, dlen);
760: if (len >= dlen) {
761: errno = ENAMETOOLONG;
762: cvs_log(LP_ERRNO, "%s", dst);
763: }
764: }
765:
766: return (len);
1.35 xsa 767: }
768:
769: /*
770: * cvs_rcs_getpath()
771: *
772: * Get the RCS path of the file <file> and store it in <buf>, which is
773: * of size <len>. For portability, it is recommended that <buf> always be
774: * at least MAXPATHLEN bytes long.
775: * Returns a pointer to the start of the path on success, or NULL on failure.
776: */
1.42 xsa 777: char *
1.35 xsa 778: cvs_rcs_getpath(CVSFILE *file, char *buf, size_t len)
779: {
780: int l;
781: char *repo;
782: struct cvsroot *root;
783:
784: root = CVS_DIR_ROOT(file);
785: repo = CVS_DIR_REPO(file);
786:
1.36 deraadt 787: l = snprintf(buf, len, "%s/%s/%s%s",
1.35 xsa 788: root->cr_dir, repo, file->cf_name, RCS_FILE_EXT);
789: if (l == -1 || l >= (int)len) {
790: errno = ENAMETOOLONG;
791: cvs_log(LP_ERRNO, "%s", buf);
792: return (NULL);
793: }
794:
795: return (buf);
1.51 xsa 796: }
797:
798: /*
799: * cvs_write_tagfile()
800: *
801: * Write the CVS/Tag file for current directory.
1.55 xsa 802: */
1.51 xsa 803: void
804: cvs_write_tagfile(char *tag, char *date, int nb)
805: {
806: FILE *fp;
807: char tagpath[MAXPATHLEN];
808:
809: if (cvs_noexec == 1)
810: return;
811:
812: if (strlcpy(tagpath, CVS_PATH_TAG, sizeof(tagpath)) >= sizeof(tagpath))
813: return;
814:
815: if ((tag != NULL) || (date != NULL)) {
816: fp = fopen(tagpath, "w+");
817: if (fp == NULL) {
818: if (errno != ENOENT)
819: cvs_log(LP_NOTICE,
820: "failed to open `%s' : %s", tagpath,
821: strerror(errno));
822: return;
823: }
824: if (tag != NULL) {
825: if (nb != 0)
826: fprintf(fp, "N%s\n", tag);
827: else
828: fprintf(fp, "T%s\n", tag);
829: } else {
830: fprintf(fp, "D%s\n", date);
831: }
832: (void)fclose(fp);
833: } else {
834: cvs_unlink(tagpath);
835: return;
836: }
837: }
838:
839: /*
840: * cvs_parse_tagfile()
841: *
842: * Parse the CVS/Tag file for current directory.
843: *
844: * If it contains a branch tag, sets <tagp>.
845: * If it contains a date, sets <datep>.
846: * If it contains a non-branch tag, sets <nbp>.
1.55 xsa 847: *
1.51 xsa 848: * Returns nothing but an error message, and sets <tagp>, <datep> to NULL
849: * and <nbp> to 0.
850: */
851: void
852: cvs_parse_tagfile(char **tagp, char **datep, int *nbp)
853: {
854: FILE *fp;
855: int linenum;
856: size_t len;
857: char linebuf[128], tagpath[MAXPATHLEN];
858:
859: if (tagp != NULL)
860: *tagp = (char *)NULL;
861:
862: if (datep != NULL)
863: *datep = (char *)NULL;
864:
865: if (nbp != NULL)
866: *nbp = 0;
867:
868: if (strlcpy(tagpath, CVS_PATH_TAG, sizeof(tagpath)) >= sizeof(tagpath))
869: return;
870:
871: fp = fopen(tagpath, "r");
872: if (fp == NULL) {
873: if (errno != ENOENT)
874: cvs_log(LP_NOTICE, "failed to open `%s' : %s", tagpath,
875: strerror(errno));
876: return;
877: }
878:
879: linenum = 0;
880:
881: while (fgets(linebuf, (int)sizeof(linebuf), fp) != NULL) {
882: linenum++;
883: if ((len = strlen(linebuf)) == 0)
884: continue;
885: if (linebuf[len -1] != '\n') {
886: cvs_log(LP_WARN, "line too long in `%s:%d'", tagpath,
887: linenum);
888: break;
889: }
890: linebuf[--len] = '\0';
891:
1.53 reyk 892: switch (*linebuf) {
1.51 xsa 893: case 'T':
894: if (tagp != NULL)
1.59 ! joris 895: *tagp = xstrdup(linebuf);
1.51 xsa 896: break;
897: case 'D':
898: if (datep != NULL)
1.59 ! joris 899: *datep = xstrdup(linebuf);
1.51 xsa 900: break;
901: case 'N':
902: if (tagp != NULL)
1.59 ! joris 903: *tagp = xstrdup(linebuf);
1.51 xsa 904: if (nbp != NULL)
905: *nbp = 1;
906: break;
907: default:
908: break;
909: }
910: }
911: if (ferror(fp))
912: cvs_log(LP_NOTICE, "failed to read line from `%s'", tagpath);
913:
914: (void)fclose(fp);
1.54 joris 915: }
916:
917: #endif /* !RCSPROG */
918:
919: /*
920: * Split the contents of a file into a list of lines.
921: */
922: struct cvs_lines *
923: cvs_splitlines(const char *fcont)
924: {
925: char *dcp;
926: struct cvs_lines *lines;
927: struct cvs_line *lp;
928:
1.59 ! joris 929: lines = (struct cvs_lines *)xmalloc(sizeof(*lines));
1.54 joris 930: TAILQ_INIT(&(lines->l_lines));
931: lines->l_nblines = 0;
1.59 ! joris 932: lines->l_data = xstrdup(fcont);
1.54 joris 933:
1.59 ! joris 934: lp = (struct cvs_line *)xmalloc(sizeof(*lp));
1.54 joris 935: lp->l_line = NULL;
936: lp->l_lineno = 0;
937: TAILQ_INSERT_TAIL(&(lines->l_lines), lp, l_list);
938:
939: for (dcp = lines->l_data; *dcp != '\0';) {
1.59 ! joris 940: lp = (struct cvs_line *)xmalloc(sizeof(*lp));
1.54 joris 941: lp->l_line = dcp;
942: lp->l_lineno = ++(lines->l_nblines);
943: TAILQ_INSERT_TAIL(&(lines->l_lines), lp, l_list);
944:
945: dcp = strchr(dcp, '\n');
946: if (dcp == NULL)
947: break;
948: *(dcp++) = '\0';
949: }
950:
951: return (lines);
952: }
953:
954: void
955: cvs_freelines(struct cvs_lines *lines)
956: {
957: struct cvs_line *lp;
958:
959: while ((lp = TAILQ_FIRST(&(lines->l_lines))) != NULL) {
960: TAILQ_REMOVE(&(lines->l_lines), lp, l_list);
1.59 ! joris 961: xfree(lp);
1.54 joris 962: }
963:
1.59 ! joris 964: xfree(lines->l_data);
! 965: xfree(lines);
1.54 joris 966: }
967:
968: BUF *
969: cvs_patchfile(const char *data, const char *patch,
970: int (*p)(struct cvs_lines *, struct cvs_lines *))
971: {
972: struct cvs_lines *dlines, *plines;
973: struct cvs_line *lp;
974: size_t len;
975: int lineno;
976: BUF *res;
977:
978: len = strlen(data);
979:
980: if ((dlines = cvs_splitlines(data)) == NULL)
981: return (NULL);
982:
983: if ((plines = cvs_splitlines(patch)) == NULL)
984: return (NULL);
985:
986: if (p(dlines, plines) < 0) {
987: cvs_freelines(dlines);
988: cvs_freelines(plines);
989: return (NULL);
990: }
991:
992: if ((res = cvs_buf_alloc(len, BUF_AUTOEXT)) == NULL) {
993: cvs_freelines(dlines);
994: cvs_freelines(plines);
995: return (NULL);
996: }
997:
998: lineno = 0;
999: TAILQ_FOREACH(lp, &dlines->l_lines, l_list) {
1000: if (lineno != 0)
1001: cvs_buf_fappend(res, "%s\n", lp->l_line);
1002: lineno++;
1003: }
1004:
1005: cvs_freelines(dlines);
1006: cvs_freelines(plines);
1007: return (res);
1.58 joris 1008: }
1009:
1010: /*
1011: * a hack to mimic and thus match gnu cvs behaviour.
1012: */
1013: time_t
1014: cvs_hack_time(time_t oldtime, int togmt)
1015: {
1016: int l;
1017: struct tm *t;
1018: char tbuf[32];
1019:
1020: if (togmt == 1) {
1021: t = gmtime(&oldtime);
1022: if (t == NULL)
1023: return (0);
1024:
1025: return (mktime(t));
1026: }
1027:
1028: t = localtime(&oldtime);
1029:
1030: l = snprintf(tbuf, sizeof(tbuf), "%d/%d/%d GMT %d:%d:%d",
1031: t->tm_mon + 1, t->tm_mday, t->tm_year + 1900, t->tm_hour,
1032: t->tm_min, t->tm_sec);
1033: if (l == -1 || l >= (int)sizeof(tbuf))
1034: return (0);
1035:
1036: return (cvs_date_parse(tbuf));
1.29 jfb 1037: }
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