Annotation of src/usr.bin/cvs/util.c, Revision 1.104
1.104 ! todd 1: /* $OpenBSD: util.c,v 1.103 2007/01/26 11:19:44 joris Exp $ */
1.1 jfb 2: /*
3: * Copyright (c) 2004 Jean-Francois Brousseau <jfb@openbsd.org>
1.71 xsa 4: * Copyright (c) 2005, 2006 Joris Vink <joris@openbsd.org>
5: * Copyright (c) 2005, 2006 Xavier Santolaria <xsa@openbsd.org>
1.9 jfb 6: * All rights reserved.
1.1 jfb 7: *
1.9 jfb 8: * Redistribution and use in source and binary forms, with or without
9: * modification, are permitted provided that the following conditions
10: * are met:
1.1 jfb 11: *
1.9 jfb 12: * 1. Redistributions of source code must retain the above copyright
13: * notice, this list of conditions and the following disclaimer.
1.1 jfb 14: * 2. The name of the author may not be used to endorse or promote products
1.9 jfb 15: * derived from this software without specific prior written permission.
1.1 jfb 16: *
17: * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
18: * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
19: * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
20: * THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
21: * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
22: * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
23: * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
24: * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
25: * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
1.9 jfb 26: * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
1.1 jfb 27: */
28:
1.66 xsa 29: #include "includes.h"
1.1 jfb 30:
31: #include "cvs.h"
32: #include "log.h"
1.70 niallo 33: #include "util.h"
1.1 jfb 34:
35: /* letter -> mode type map */
36: static const int cvs_modetypes[26] = {
37: -1, -1, -1, -1, -1, -1, 1, -1, -1, -1, -1, -1, -1,
38: -1, 2, -1, -1, -1, -1, -1, 0, -1, -1, -1, -1, -1,
39: };
40:
41: /* letter -> mode map */
42: static const mode_t cvs_modes[3][26] = {
43: {
44: 0, 0, 0, 0, 0, 0, 0, /* a - g */
45: 0, 0, 0, 0, 0, 0, 0, /* h - m */
46: 0, 0, 0, S_IRUSR, 0, 0, 0, /* n - u */
47: 0, S_IWUSR, S_IXUSR, 0, 0 /* v - z */
48: },
49: {
50: 0, 0, 0, 0, 0, 0, 0, /* a - g */
51: 0, 0, 0, 0, 0, 0, 0, /* h - m */
52: 0, 0, 0, S_IRGRP, 0, 0, 0, /* n - u */
53: 0, S_IWGRP, S_IXGRP, 0, 0 /* v - z */
54: },
55: {
56: 0, 0, 0, 0, 0, 0, 0, /* a - g */
57: 0, 0, 0, 0, 0, 0, 0, /* h - m */
58: 0, 0, 0, S_IROTH, 0, 0, 0, /* n - u */
59: 0, S_IWOTH, S_IXOTH, 0, 0 /* v - z */
60: }
61: };
62:
63:
64: /* octal -> string */
65: static const char *cvs_modestr[8] = {
66: "", "x", "w", "wx", "r", "rx", "rw", "rwx"
67: };
68:
1.9 jfb 69: /*
1.1 jfb 70: * cvs_strtomode()
71: *
72: * Read the contents of the string <str> and generate a permission mode from
73: * the contents of <str>, which is assumed to have the mode format of CVS.
74: * The CVS protocol specification states that any modes or mode types that are
75: * not recognized should be silently ignored. This function does not return
76: * an error in such cases, but will issue warnings.
77: */
1.64 joris 78: void
1.1 jfb 79: cvs_strtomode(const char *str, mode_t *mode)
80: {
1.2 jfb 81: char type;
1.64 joris 82: size_t l;
1.1 jfb 83: mode_t m;
84: char buf[32], ms[4], *sp, *ep;
85:
86: m = 0;
1.64 joris 87: l = strlcpy(buf, str, sizeof(buf));
88: if (l >= sizeof(buf))
89: fatal("cvs_strtomode: string truncation");
90:
1.1 jfb 91: sp = buf;
92: ep = sp;
93:
94: for (sp = buf; ep != NULL; sp = ep + 1) {
95: ep = strchr(sp, ',');
96: if (ep != NULL)
1.2 jfb 97: *ep = '\0';
1.1 jfb 98:
1.14 weingart 99: memset(ms, 0, sizeof ms);
100: if (sscanf(sp, "%c=%3s", &type, ms) != 2 &&
101: sscanf(sp, "%c=", &type) != 1) {
1.89 joris 102: fatal("failed to scan mode string `%s'", sp);
1.1 jfb 103: }
104:
1.78 deraadt 105: if (type <= 'a' || type >= 'z' ||
106: cvs_modetypes[type - 'a'] == -1) {
1.79 joris 107: cvs_log(LP_ERR,
1.1 jfb 108: "invalid mode type `%c'"
109: " (`u', `g' or `o' expected), ignoring", type);
110: continue;
111: }
112:
113: /* make type contain the actual mode index */
114: type = cvs_modetypes[type - 'a'];
115:
116: for (sp = ms; *sp != '\0'; sp++) {
1.78 deraadt 117: if (*sp <= 'a' || *sp >= 'z' ||
118: cvs_modes[(int)type][*sp - 'a'] == 0) {
1.89 joris 119: fatal("invalid permission bit `%c'", *sp);
1.15 deraadt 120: } else
1.5 jfb 121: m |= cvs_modes[(int)type][*sp - 'a'];
1.1 jfb 122: }
123: }
124:
125: *mode = m;
126: }
127:
128: /*
129: * cvs_modetostr()
130: *
1.30 jfb 131: * Generate a CVS-format string to represent the permissions mask on a file
132: * from the mode <mode> and store the result in <buf>, which can accept up to
133: * <len> bytes (including the terminating NUL byte). The result is guaranteed
134: * to be NUL-terminated.
1.1 jfb 135: */
1.65 joris 136: void
1.1 jfb 137: cvs_modetostr(mode_t mode, char *buf, size_t len)
138: {
139: char tmp[16], *bp;
140: mode_t um, gm, om;
141:
142: um = (mode & S_IRWXU) >> 6;
143: gm = (mode & S_IRWXG) >> 3;
144: om = mode & S_IRWXO;
145:
146: bp = buf;
147: *bp = '\0';
148:
149: if (um) {
1.68 xsa 150: if (strlcpy(tmp, "u=", sizeof(tmp)) >= sizeof(tmp) ||
151: strlcat(tmp, cvs_modestr[um], sizeof(tmp)) >= sizeof(tmp))
1.65 joris 152: fatal("cvs_modetostr: overflow for user mode");
153:
1.68 xsa 154: if (strlcat(buf, tmp, len) >= len)
1.65 joris 155: fatal("cvs_modetostr: string truncation");
1.1 jfb 156: }
1.65 joris 157:
1.1 jfb 158: if (gm) {
1.65 joris 159: if (um) {
1.68 xsa 160: if (strlcat(buf, ",", len) >= len)
1.65 joris 161: fatal("cvs_modetostr: string truncation");
162: }
163:
1.68 xsa 164: if (strlcpy(tmp, "g=", sizeof(tmp)) >= sizeof(tmp) ||
165: strlcat(tmp, cvs_modestr[gm], sizeof(tmp)) >= sizeof(tmp))
1.65 joris 166: fatal("cvs_modetostr: overflow for group mode");
167:
1.68 xsa 168: if (strlcat(buf, tmp, len) >= len)
1.65 joris 169: fatal("cvs_modetostr: string truncation");
1.1 jfb 170: }
1.65 joris 171:
1.1 jfb 172: if (om) {
1.65 joris 173: if (um || gm) {
1.68 xsa 174: if (strlcat(buf, ",", len) >= len)
1.65 joris 175: fatal("cvs_modetostr: string truncation");
176: }
177:
1.68 xsa 178: if (strlcpy(tmp, "o=", sizeof(tmp)) >= sizeof(tmp) ||
179: strlcat(tmp, cvs_modestr[gm], sizeof(tmp)) >= sizeof(tmp))
1.65 joris 180: fatal("cvs_modetostr: overflow for others mode");
181:
1.68 xsa 182: if (strlcat(buf, tmp, len) >= len)
1.65 joris 183: fatal("cvs_modetostr: string truncation");
1.1 jfb 184: }
185: }
186:
187: /*
188: * cvs_cksum()
189: *
190: * Calculate the MD5 checksum of the file whose path is <file> and generate
191: * a CVS-format 32 hex-digit string, which is stored in <dst>, whose size is
192: * given in <len> and must be at least 33.
193: * Returns 0 on success, or -1 on failure.
194: */
195: int
196: cvs_cksum(const char *file, char *dst, size_t len)
197: {
198: if (len < CVS_CKSUM_LEN) {
1.79 joris 199: cvs_log(LP_ERR, "buffer too small for checksum");
1.1 jfb 200: return (-1);
201: }
202: if (MD5File(file, dst) == NULL) {
1.79 joris 203: cvs_log(LP_ERR, "failed to generate checksum for %s", file);
1.1 jfb 204: return (-1);
205: }
206:
207: return (0);
208: }
209:
210: /*
211: * cvs_splitpath()
212: *
1.7 jfb 213: * Split a path <path> into the base portion and the filename portion.
214: * The path is copied in <base> and the last delimiter is replaced by a NUL
215: * byte. The <file> pointer is set to point to the first character after
216: * that delimiter.
1.1 jfb 217: * Returns 0 on success, or -1 on failure.
218: */
1.65 joris 219: void
1.7 jfb 220: cvs_splitpath(const char *path, char *base, size_t blen, char **file)
1.1 jfb 221: {
222: size_t rlen;
1.7 jfb 223: char *sp;
1.1 jfb 224:
1.7 jfb 225: if ((rlen = strlcpy(base, path, blen)) >= blen)
1.60 xsa 226: fatal("cvs_splitpath: path truncation");
1.6 jfb 227:
1.78 deraadt 228: while (rlen > 0 && base[rlen - 1] == '/')
1.7 jfb 229: base[--rlen] = '\0';
230:
231: sp = strrchr(base, '/');
1.1 jfb 232: if (sp == NULL) {
1.65 joris 233: rlen = strlcpy(base, "./", blen);
234: if (rlen >= blen)
235: fatal("cvs_splitpath: path truncation");
236:
237: rlen = strlcat(base, path, blen);
238: if (rlen >= blen)
239: fatal("cvs_splitpath: path truncation");
240:
1.7 jfb 241: sp = base + 1;
1.1 jfb 242: }
243:
1.7 jfb 244: *sp = '\0';
245: if (file != NULL)
246: *file = sp + 1;
1.1 jfb 247: }
248:
249: /*
250: * cvs_getargv()
251: *
252: * Parse a line contained in <line> and generate an argument vector by
253: * splitting the line on spaces and tabs. The resulting vector is stored in
254: * <argv>, which can accept up to <argvlen> entries.
1.20 david 255: * Returns the number of arguments in the vector, or -1 if an error occurred.
1.1 jfb 256: */
257: int
258: cvs_getargv(const char *line, char **argv, int argvlen)
259: {
1.65 joris 260: size_t l;
1.1 jfb 261: u_int i;
1.67 xsa 262: int argc, error;
1.1 jfb 263: char linebuf[256], qbuf[128], *lp, *cp, *arg;
264:
1.65 joris 265: l = strlcpy(linebuf, line, sizeof(linebuf));
266: if (l >= sizeof(linebuf))
267: fatal("cvs_getargv: string truncation");
268:
1.27 pat 269: memset(argv, 0, argvlen * sizeof(char *));
1.1 jfb 270: argc = 0;
271:
272: /* build the argument vector */
1.67 xsa 273: error = 0;
1.1 jfb 274: for (lp = linebuf; lp != NULL;) {
275: if (*lp == '"') {
276: /* double-quoted string */
277: lp++;
278: i = 0;
279: memset(qbuf, 0, sizeof(qbuf));
280: while (*lp != '"') {
1.16 jfb 281: if (*lp == '\\')
282: lp++;
1.1 jfb 283: if (*lp == '\0') {
284: cvs_log(LP_ERR, "no terminating quote");
1.67 xsa 285: error++;
1.1 jfb 286: break;
1.16 jfb 287: }
1.1 jfb 288:
1.9 jfb 289: qbuf[i++] = *lp++;
1.1 jfb 290: if (i == sizeof(qbuf)) {
1.67 xsa 291: error++;
1.1 jfb 292: break;
293: }
294: }
295:
296: arg = qbuf;
1.15 deraadt 297: } else {
1.1 jfb 298: cp = strsep(&lp, " \t");
299: if (cp == NULL)
300: break;
301: else if (*cp == '\0')
302: continue;
303:
304: arg = cp;
305: }
306:
1.16 jfb 307: if (argc == argvlen) {
1.67 xsa 308: error++;
1.16 jfb 309: break;
310: }
311:
1.59 joris 312: argv[argc] = xstrdup(arg);
1.1 jfb 313: argc++;
314: }
315:
1.67 xsa 316: if (error != 0) {
1.1 jfb 317: /* ditch the argument vector */
318: for (i = 0; i < (u_int)argc; i++)
1.59 joris 319: xfree(argv[i]);
1.1 jfb 320: argc = -1;
321: }
322:
323: return (argc);
1.17 jfb 324: }
325:
326: /*
327: * cvs_makeargv()
328: *
1.20 david 329: * Allocate an argument vector large enough to accommodate for all the
1.17 jfb 330: * arguments found in <line> and return it.
331: */
1.42 xsa 332: char **
1.17 jfb 333: cvs_makeargv(const char *line, int *argc)
334: {
335: int i, ret;
336: char *argv[1024], **copy;
337:
338: ret = cvs_getargv(line, argv, 1024);
339: if (ret == -1)
340: return (NULL);
341:
1.77 ray 342: copy = xcalloc(ret + 1, sizeof(char *));
1.17 jfb 343:
344: for (i = 0; i < ret; i++)
345: copy[i] = argv[i];
346: copy[ret] = NULL;
347:
348: *argc = ret;
349: return (copy);
1.1 jfb 350: }
351:
352: /*
353: * cvs_freeargv()
354: *
355: * Free an argument vector previously generated by cvs_getargv().
356: */
357: void
358: cvs_freeargv(char **argv, int argc)
359: {
360: int i;
361:
362: for (i = 0; i < argc; i++)
1.16 jfb 363: if (argv[i] != NULL)
1.59 joris 364: xfree(argv[i]);
1.2 jfb 365: }
366:
1.11 krapht 367: /*
368: * cvs_exec()
369: */
370: int
1.96 joris 371: cvs_exec(int argc, char **argv)
1.11 krapht 372: {
373: int ret;
374: pid_t pid;
375:
376: if ((pid = fork()) == -1) {
1.79 joris 377: cvs_log(LP_ERR, "failed to fork");
1.11 krapht 378: return (-1);
379: } else if (pid == 0) {
380: execvp(argv[0], argv);
1.79 joris 381: cvs_log(LP_ERR, "failed to exec %s", argv[0]);
1.13 jfb 382: exit(1);
1.11 krapht 383: }
384:
385: if (waitpid(pid, &ret, 0) == -1)
1.79 joris 386: cvs_log(LP_ERR, "failed to waitpid");
1.11 krapht 387:
388: return (ret);
1.38 xsa 389: }
390:
391: /*
392: * cvs_chdir()
393: *
1.63 xsa 394: * Change to directory <path>.
395: * If <rm> is equal to `1', <path> is removed if chdir() fails so we
396: * do not have temporary directories leftovers.
1.60 xsa 397: * Returns 0 on success.
1.50 xsa 398: */
1.38 xsa 399: int
1.63 xsa 400: cvs_chdir(const char *path, int rm)
1.38 xsa 401: {
1.63 xsa 402: if (chdir(path) == -1) {
403: if (rm == 1)
404: cvs_unlink(path);
1.60 xsa 405: fatal("cvs_chdir: `%s': %s", path, strerror(errno));
1.63 xsa 406: }
1.49 xsa 407:
408: return (0);
409: }
410:
411: /*
412: * cvs_rename()
413: * Change the name of a file.
414: * rename() wrapper with an error message.
1.60 xsa 415: * Returns 0 on success.
1.49 xsa 416: */
417: int
418: cvs_rename(const char *from, const char *to)
419: {
1.90 joris 420: if (cvs_server_active == 0)
421: cvs_log(LP_TRACE, "cvs_rename(%s,%s)", from, to);
1.49 xsa 422:
423: if (cvs_noexec == 1)
424: return (0);
425:
1.60 xsa 426: if (rename(from, to) == -1)
427: fatal("cvs_rename: `%s'->`%s': %s", from, to, strerror(errno));
1.40 xsa 428:
429: return (0);
430: }
431:
432: /*
433: * cvs_unlink()
434: *
435: * Removes the link named by <path>.
436: * unlink() wrapper with an error message.
437: * Returns 0 on success, or -1 on failure.
438: */
439: int
440: cvs_unlink(const char *path)
441: {
1.90 joris 442: if (cvs_server_active == 0)
443: cvs_log(LP_TRACE, "cvs_unlink(%s)", path);
1.40 xsa 444:
445: if (cvs_noexec == 1)
446: return (0);
447:
1.78 deraadt 448: if (unlink(path) == -1 && errno != ENOENT) {
1.94 xsa 449: cvs_log(LP_ERRNO, "%s", path);
1.38 xsa 450: return (-1);
451: }
452:
453: return (0);
1.1 jfb 454: }
1.24 joris 455:
456: /*
1.45 xsa 457: * cvs_rmdir()
1.30 jfb 458: *
459: * Remove a directory tree from disk.
460: * Returns 0 on success, or -1 on failure.
1.24 joris 461: */
462: int
1.45 xsa 463: cvs_rmdir(const char *path)
1.24 joris 464: {
1.99 todd 465: int type, ret = -1;
1.30 jfb 466: size_t len;
1.24 joris 467: DIR *dirp;
468: struct dirent *ent;
1.99 todd 469: struct stat st;
1.24 joris 470: char fpath[MAXPATHLEN];
1.46 xsa 471:
1.90 joris 472: if (cvs_server_active == 0)
473: cvs_log(LP_TRACE, "cvs_rmdir(%s)", path);
1.46 xsa 474:
475: if (cvs_noexec == 1)
476: return (0);
1.24 joris 477:
478: if ((dirp = opendir(path)) == NULL) {
1.79 joris 479: cvs_log(LP_ERR, "failed to open '%s'", path);
1.30 jfb 480: return (-1);
1.24 joris 481: }
482:
483: while ((ent = readdir(dirp)) != NULL) {
484: if (!strcmp(ent->d_name, ".") ||
485: !strcmp(ent->d_name, ".."))
486: continue;
487:
1.30 jfb 488: len = cvs_path_cat(path, ent->d_name, fpath, sizeof(fpath));
1.33 pat 489: if (len >= sizeof(fpath))
1.65 joris 490: fatal("cvs_rmdir: path truncation");
1.24 joris 491:
1.99 todd 492: if (ent->d_type == DT_UNKNOWN) {
1.104 ! todd 493: if (lstat(fpath, &st) == -1)
1.99 todd 494: fatal("'%s': %s", fpath, strerror(errno));
495:
496: switch (st.st_mode & S_IFMT) {
497: case S_IFDIR:
498: type = CVS_DIR;
499: break;
500: case S_IFREG:
501: type = CVS_FILE;
502: break;
503: default:
504: fatal("'%s': Unknown file type in copy",
505: fpath);
506: }
507: } else {
508: switch (ent->d_type) {
509: case DT_DIR:
510: type = CVS_DIR;
511: break;
512: case DT_REG:
513: type = CVS_FILE;
514: break;
515: default:
516: fatal("'%s': Unknown file type in copy",
517: fpath);
518: }
519: }
520: switch (type) {
521: case CVS_DIR:
1.45 xsa 522: if (cvs_rmdir(fpath) == -1)
1.33 pat 523: goto done;
1.99 todd 524: break;
525: case CVS_FILE:
526: if (cvs_unlink(fpath) == -1 && errno != ENOENT)
527: goto done;
528: break;
529: default:
530: fatal("type %d unknown, shouldn't happen", type);
531: }
1.24 joris 532: }
533:
534:
1.78 deraadt 535: if (rmdir(path) == -1 && errno != ENOENT) {
1.93 xsa 536: cvs_log(LP_ERRNO, "%s", path);
1.33 pat 537: goto done;
1.30 jfb 538: }
1.24 joris 539:
1.33 pat 540: ret = 0;
541: done:
542: closedir(dirp);
1.34 joris 543: return (ret);
544: }
545:
546: /*
1.30 jfb 547: * cvs_path_cat()
548: *
549: * Concatenate the two paths <base> and <end> and store the generated path
550: * into the buffer <dst>, which can accept up to <dlen> bytes, including the
551: * NUL byte. The result is guaranteed to be NUL-terminated.
552: * Returns the number of bytes necessary to store the full resulting path,
553: * not including the NUL byte (a value equal to or larger than <dlen>
554: * indicates truncation).
555: */
1.29 jfb 556: size_t
557: cvs_path_cat(const char *base, const char *end, char *dst, size_t dlen)
558: {
559: size_t len;
560:
561: len = strlcpy(dst, base, dlen);
562: if (len >= dlen - 1) {
563: errno = ENAMETOOLONG;
1.79 joris 564: fatal("overflow in cvs_path_cat");
1.29 jfb 565: } else {
566: dst[len] = '/';
567: dst[len + 1] = '\0';
568: len = strlcat(dst, end, dlen);
569: if (len >= dlen) {
570: errno = ENAMETOOLONG;
1.79 joris 571: cvs_log(LP_ERR, "%s", dst);
1.29 jfb 572: }
573: }
574:
575: return (len);
1.51 xsa 576: }
577:
578: void
1.81 joris 579: cvs_get_repository_path(const char *dir, char *dst, size_t len)
580: {
581: char buf[MAXPATHLEN];
582:
583: cvs_get_repository_name(dir, buf, sizeof(buf));
1.92 xsa 584: if (cvs_path_cat(current_cvsroot->cr_dir, buf, dst, len) >= len)
585: fatal("cvs_get_repository_path: truncation");
1.81 joris 586: }
587:
588: void
589: cvs_get_repository_name(const char *dir, char *dst, size_t len)
1.51 xsa 590: {
591: FILE *fp;
1.81 joris 592: char *s, fpath[MAXPATHLEN];
1.79 joris 593:
1.92 xsa 594: if (cvs_path_cat(dir, CVS_PATH_REPOSITORY,
595: fpath, sizeof(fpath)) >= sizeof(fpath))
596: fatal("cvs_get_repository_name: truncation");
1.79 joris 597:
598: if ((fp = fopen(fpath, "r")) != NULL) {
1.101 thib 599: if ((fgets(dst, len, fp)) == NULL)
600: fatal("cvs_get_repository_name: bad repository file");
1.51 xsa 601:
1.81 joris 602: if ((s = strchr(dst, '\n')) != NULL)
1.79 joris 603: *s = '\0';
1.51 xsa 604:
605: (void)fclose(fp);
1.81 joris 606: } else {
1.84 joris 607: dst[0] = '\0';
608:
609: if (cvs_cmdop == CVS_OP_IMPORT) {
610: if (strlcpy(dst, import_repository, len) >= len)
1.85 joris 611: fatal("cvs_get_repository_name: truncation");
1.84 joris 612: if (strlcat(dst, "/", len) >= len)
1.85 joris 613: fatal("cvs_get_repository_name: truncation");
614:
615: if (strcmp(dir, ".")) {
616: if (strlcat(dst, dir, len) >= len) {
617: fatal("cvs_get_repository_name: "
618: "truncation");
619: }
620: }
621: } else {
1.98 joris 622: if (cvs_cmdop != CVS_OP_CHECKOUT) {
623: if (strlcat(dst, dir, len) >= len)
624: fatal("cvs_get_repository_name: "
625: "truncation");
626: }
1.84 joris 627: }
1.51 xsa 628: }
629: }
630:
631: void
1.87 xsa 632: cvs_mkadmin(const char *path, const char *root, const char *repo,
633: char *tag, char *date, int nb)
1.51 xsa 634: {
635: FILE *fp;
636: size_t len;
1.79 joris 637: struct stat st;
638: char buf[MAXPATHLEN];
1.51 xsa 639:
1.90 joris 640: if (cvs_server_active == 0)
641: cvs_log(LP_TRACE, "cvs_mkadmin(%s, %s, %s, %s, %s, %d)",
642: path, root, repo, (tag != NULL) ? tag : "",
643: (date != NULL) ? date : "", nb);
1.51 xsa 644:
1.79 joris 645: len = cvs_path_cat(path, CVS_PATH_CVSDIR, buf, sizeof(buf));
646: if (len >= sizeof(buf))
647: fatal("cvs_mkadmin: truncation");
1.51 xsa 648:
1.79 joris 649: if (stat(buf, &st) != -1)
650: return;
1.51 xsa 651:
1.79 joris 652: if (mkdir(buf, 0755) == -1 && errno != EEXIST)
653: fatal("cvs_mkadmin: %s: %s", buf, strerror(errno));
654:
655: len = cvs_path_cat(path, CVS_PATH_ROOTSPEC, buf, sizeof(buf));
656: if (len >= sizeof(buf))
657: fatal("cvs_mkadmin: truncation");
658:
659: if ((fp = fopen(buf, "w")) == NULL)
660: fatal("cvs_mkadmin: %s: %s", buf, strerror(errno));
661:
662: fprintf(fp, "%s\n", root);
663: (void)fclose(fp);
1.51 xsa 664:
1.79 joris 665: len = cvs_path_cat(path, CVS_PATH_REPOSITORY, buf, sizeof(buf));
666: if (len >= sizeof(buf))
667: fatal("cvs_mkadmin: truncation");
1.51 xsa 668:
1.79 joris 669: if ((fp = fopen(buf, "w")) == NULL)
670: fatal("cvs_mkadmin: %s: %s", buf, strerror(errno));
1.51 xsa 671:
1.79 joris 672: fprintf(fp, "%s\n", repo);
673: (void)fclose(fp);
1.51 xsa 674:
1.79 joris 675: len = cvs_path_cat(path, CVS_PATH_ENTRIES, buf, sizeof(buf));
676: if (len >= sizeof(buf))
677: fatal("cvs_mkadmin: truncation");
1.51 xsa 678:
1.79 joris 679: if ((fp = fopen(buf, "w")) == NULL)
680: fatal("cvs_mkadmin: %s: %s", buf, strerror(errno));
1.51 xsa 681: (void)fclose(fp);
1.87 xsa 682:
683: cvs_write_tagfile(path, tag, date, nb);
1.54 joris 684: }
685:
1.79 joris 686: void
687: cvs_mkpath(const char *path)
1.72 niallo 688: {
1.79 joris 689: FILE *fp;
690: size_t len;
691: char *sp, *dp, *dir, rpath[MAXPATHLEN], repo[MAXPATHLEN];
692:
693: dir = xstrdup(path);
694:
695: STRIP_SLASH(dir);
1.90 joris 696:
697: if (cvs_server_active == 0)
698: cvs_log(LP_TRACE, "cvs_mkpath(%s)", dir);
1.72 niallo 699:
1.79 joris 700: repo[0] = '\0';
701: rpath[0] = '\0';
1.72 niallo 702:
1.79 joris 703: if (cvs_cmdop == CVS_OP_UPDATE) {
704: if ((fp = fopen(CVS_PATH_REPOSITORY, "r")) != NULL) {
1.91 thib 705: if ((fgets(repo, sizeof(repo), fp)) == NULL)
706: fatal("cvs_mkpath: bad repository file");
707: if ((len = strlen(repo)) && repo[len - 1] == '\n')
708: repo[len - 1] = '\0';
1.79 joris 709: (void)fclose(fp);
710: }
1.72 niallo 711: }
712:
1.79 joris 713: for (sp = dir; sp != NULL; sp = dp) {
714: dp = strchr(sp, '/');
715: if (dp != NULL)
716: *(dp++) = '\0';
717:
718: if (repo[0] != '\0') {
719: len = strlcat(repo, "/", sizeof(repo));
720: if (len >= (int)sizeof(repo))
721: fatal("cvs_mkpath: overflow");
722: }
723:
724: len = strlcat(repo, sp, sizeof(repo));
725: if (len >= (int)sizeof(repo))
726: fatal("cvs_mkpath: overflow");
727:
728: if (rpath[0] != '\0') {
729: len = strlcat(rpath, "/", sizeof(rpath));
730: if (len >= (int)sizeof(rpath))
731: fatal("cvs_mkpath: overflow");
732: }
733:
734: len = strlcat(rpath, sp, sizeof(rpath));
735: if (len >= (int)sizeof(rpath))
736: fatal("cvs_mkpath: overflow");
737:
738: if (mkdir(rpath, 0755) == -1 && errno != EEXIST)
739: fatal("cvs_mkpath: %s: %s", rpath, strerror(errno));
1.72 niallo 740:
1.98 joris 741: cvs_mkadmin(rpath, current_cvsroot->cr_str, repo,
1.87 xsa 742: NULL, NULL, 0);
1.79 joris 743: }
1.72 niallo 744:
1.79 joris 745: xfree(dir);
1.72 niallo 746: }
1.54 joris 747:
748: /*
749: * Split the contents of a file into a list of lines.
750: */
751: struct cvs_lines *
1.97 niallo 752: cvs_splitlines(const u_char *data, size_t len)
1.54 joris 753: {
1.97 niallo 754: u_char *p, *c;
755: size_t i, tlen;
1.54 joris 756: struct cvs_lines *lines;
757: struct cvs_line *lp;
758:
1.77 ray 759: lines = xmalloc(sizeof(*lines));
1.97 niallo 760: memset(lines, 0, sizeof(*lines));
1.54 joris 761: TAILQ_INIT(&(lines->l_lines));
762:
1.77 ray 763: lp = xmalloc(sizeof(*lp));
1.97 niallo 764: memset(lp, 0, sizeof(*lp));
1.54 joris 765: TAILQ_INSERT_TAIL(&(lines->l_lines), lp, l_list);
766:
1.97 niallo 767: p = c = data;
768: for (i = 0; i < len; i++) {
769: if (*p == '\n' || (i == len - 1)) {
770: tlen = p - c + 1;
771: lp = xmalloc(sizeof(*lp));
1.102 niallo 772: memset(lp, 0, sizeof(*lp));
1.97 niallo 773: lp->l_line = c;
774: lp->l_len = tlen;
775: lp->l_lineno = ++(lines->l_nblines);
776: TAILQ_INSERT_TAIL(&(lines->l_lines), lp, l_list);
777: c = p + 1;
778: }
779: p++;
1.54 joris 780: }
781:
782: return (lines);
783: }
784:
785: void
786: cvs_freelines(struct cvs_lines *lines)
787: {
788: struct cvs_line *lp;
789:
790: while ((lp = TAILQ_FIRST(&(lines->l_lines))) != NULL) {
791: TAILQ_REMOVE(&(lines->l_lines), lp, l_list);
1.102 niallo 792: if (lp->l_needsfree == 1)
793: xfree(lp->l_line);
1.59 joris 794: xfree(lp);
1.54 joris 795: }
796:
1.59 joris 797: xfree(lines);
1.54 joris 798: }
799:
800: BUF *
1.97 niallo 801: cvs_patchfile(const u_char *data, size_t dlen, const u_char *patch, size_t plen,
1.54 joris 802: int (*p)(struct cvs_lines *, struct cvs_lines *))
803: {
804: struct cvs_lines *dlines, *plines;
805: struct cvs_line *lp;
806: BUF *res;
807:
1.97 niallo 808: if ((dlines = cvs_splitlines(data, dlen)) == NULL)
1.54 joris 809: return (NULL);
810:
1.97 niallo 811: if ((plines = cvs_splitlines(patch, plen)) == NULL)
1.54 joris 812: return (NULL);
813:
814: if (p(dlines, plines) < 0) {
815: cvs_freelines(dlines);
816: cvs_freelines(plines);
817: return (NULL);
818: }
819:
1.97 niallo 820: res = cvs_buf_alloc(1024, BUF_AUTOEXT);
1.54 joris 821: TAILQ_FOREACH(lp, &dlines->l_lines, l_list) {
1.97 niallo 822: if (lp->l_line == NULL)
823: continue;
824: cvs_buf_append(res, lp->l_line, lp->l_len);
1.54 joris 825: }
826:
827: cvs_freelines(dlines);
828: cvs_freelines(plines);
829: return (res);
1.70 niallo 830: }
831:
1.71 xsa 832: /*
833: * cvs_strsplit()
834: *
835: * Split a string <str> of <sep>-separated values and allocate
836: * an argument vector for the values found.
837: */
1.73 pat 838: struct cvs_argvector *
1.71 xsa 839: cvs_strsplit(char *str, const char *sep)
840: {
1.73 pat 841: struct cvs_argvector *av;
1.76 ray 842: size_t i = 0;
1.73 pat 843: char **nargv;
1.71 xsa 844: char *cp, *p;
845:
846: cp = xstrdup(str);
1.77 ray 847: av = xmalloc(sizeof(*av));
1.73 pat 848: av->str = cp;
1.77 ray 849: av->argv = xcalloc(i + 1, sizeof(*(av->argv)));
1.71 xsa 850:
851: while ((p = strsep(&cp, sep)) != NULL) {
1.73 pat 852: av->argv[i++] = p;
1.77 ray 853: nargv = xrealloc(av->argv,
854: i + 1, sizeof(*(av->argv)));
1.73 pat 855: av->argv = nargv;
1.71 xsa 856: }
1.73 pat 857: av->argv[i] = NULL;
858:
859: return (av);
860: }
1.71 xsa 861:
1.73 pat 862: /*
863: * cvs_argv_destroy()
864: *
865: * Free an argument vector previously allocated by cvs_strsplit().
866: */
867: void
868: cvs_argv_destroy(struct cvs_argvector *av)
869: {
870: xfree(av->str);
871: xfree(av->argv);
872: xfree(av);
1.82 joris 873: }
874:
875: u_int
876: cvs_revision_select(RCSFILE *file, char *range)
877: {
878: int i;
879: u_int nrev;
880: char *lstr, *rstr;
881: struct rcs_delta *rdp;
882: struct cvs_argvector *revargv, *revrange;
883: RCSNUM *lnum, *rnum;
884:
885: nrev = 0;
886: lnum = rnum = NULL;
887:
888: revargv = cvs_strsplit(range, ",");
889: for (i = 0; revargv->argv[i] != NULL; i++) {
890: revrange = cvs_strsplit(revargv->argv[i], ":");
891: if (revrange->argv[0] == NULL)
892: fatal("invalid revision range: %s", revargv->argv[i]);
893: else if (revrange->argv[1] == NULL)
894: lstr = rstr = revrange->argv[0];
895: else {
896: if (revrange->argv[2] != NULL)
897: fatal("invalid revision range: %s",
898: revargv->argv[i]);
899:
900: lstr = revrange->argv[0];
901: rstr = revrange->argv[1];
902:
903: if (strcmp(lstr, "") == 0)
904: lstr = NULL;
905: if (strcmp(rstr, "") == 0)
906: rstr = NULL;
907: }
908:
909: if (lstr == NULL)
910: lstr = RCS_HEAD_INIT;
911:
1.100 niallo 912: if ((lnum = rcs_translate_tag(lstr, file)) == NULL)
913: fatal("cvs_revision_select: could not translate tag `%s'", lstr);
1.82 joris 914:
915: if (rstr != NULL) {
1.100 niallo 916: if ((rnum = rcs_translate_tag(rstr, file)) == NULL)
917: fatal("cvs_revision_select: could not translate tag `%s'", rstr);
1.82 joris 918: } else {
919: rnum = rcsnum_alloc();
920: rcsnum_cpy(file->rf_head, rnum, 0);
921: }
922:
923: cvs_argv_destroy(revrange);
924:
925: TAILQ_FOREACH(rdp, &(file->rf_delta), rd_list) {
926: if (rcsnum_cmp(rdp->rd_num, lnum, 0) <= 0 &&
927: rcsnum_cmp(rdp->rd_num, rnum, 0) >= 0 &&
928: !(rdp->rd_flags & RCS_RD_SELECT)) {
929: rdp->rd_flags |= RCS_RD_SELECT;
930: nrev++;
931: }
932: }
933: }
934:
935: cvs_argv_destroy(revargv);
936:
937: if (lnum != NULL)
938: rcsnum_free(lnum);
939: if (rnum != NULL)
940: rcsnum_free(rnum);
941:
942: return (nrev);
1.95 xsa 943: }
944:
945: int
946: cvs_yesno(void)
947: {
948: int c, ret;
949:
950: ret = 0;
951:
952: fflush(stderr);
953: fflush(stdout);
954:
955: if ((c = getchar()) != 'y' && c != 'Y')
956: ret = -1;
957: else
958: while (c != EOF && c != '\n')
959: c = getchar();
960:
961: return (ret);
1.71 xsa 962: }
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