Annotation of src/usr.bin/cvs/entries.c, Revision 1.78
1.78 ! niallo 1: /* $OpenBSD: entries.c,v 1.77 2007/05/26 02:30:28 ray Exp $ */
1.1 jfb 2: /*
1.57 joris 3: * Copyright (c) 2006 Joris Vink <joris@openbsd.org>
1.1 jfb 4: *
1.57 joris 5: * Permission to use, copy, modify, and distribute this software for any
6: * purpose with or without fee is hereby granted, provided that the above
7: * copyright notice and this permission notice appear in all copies.
8: *
9: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
10: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
12: * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13: * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14: * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
15: * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
1.1 jfb 16: */
17:
1.75 otto 18: #include <errno.h>
19: #include <string.h>
20: #include <unistd.h>
1.1 jfb 21:
1.34 xsa 22: #include "cvs.h"
1.1 jfb 23:
1.42 xsa 24: #define CVS_ENTRIES_NFIELDS 6
25: #define CVS_ENTRIES_DELIM '/'
1.1 jfb 26:
1.57 joris 27: static struct cvs_ent_line *ent_get_line(CVSENTRIES *, const char *);
1.1 jfb 28:
1.42 xsa 29: CVSENTRIES *
1.57 joris 30: cvs_ent_open(const char *dir)
1.1 jfb 31: {
1.57 joris 32: FILE *fp;
1.1 jfb 33: size_t len;
1.57 joris 34: CVSENTRIES *ep;
35: char *p, buf[MAXPATHLEN];
1.1 jfb 36: struct cvs_ent *ent;
1.57 joris 37: struct cvs_ent_line *line;
1.36 xsa 38:
1.57 joris 39: ep = (CVSENTRIES *)xmalloc(sizeof(*ep));
40: memset(ep, 0, sizeof(*ep));
1.52 joris 41:
1.73 xsa 42: (void)xsnprintf(buf, sizeof(buf), "%s/%s", dir, CVS_PATH_ENTRIES);
1.64 xsa 43:
1.57 joris 44: ep->cef_path = xstrdup(buf);
1.8 jfb 45:
1.73 xsa 46: (void)xsnprintf(buf, sizeof(buf), "%s/%s",
47: dir, CVS_PATH_BACKUPENTRIES);
1.64 xsa 48:
1.57 joris 49: ep->cef_bpath = xstrdup(buf);
1.3 jfb 50:
1.73 xsa 51: (void)xsnprintf(buf, sizeof(buf), "%s/%s", dir, CVS_PATH_LOGENTRIES);
1.64 xsa 52:
1.57 joris 53: ep->cef_lpath = xstrdup(buf);
1.1 jfb 54:
1.4 jfb 55: TAILQ_INIT(&(ep->cef_ent));
1.3 jfb 56:
1.57 joris 57: if ((fp = fopen(ep->cef_path, "r")) != NULL) {
58: while (fgets(buf, sizeof(buf), fp)) {
59: len = strlen(buf);
60: if (len > 0 && buf[len - 1] == '\n')
61: buf[len - 1] = '\0';
62:
63: if (buf[0] == 'D' && buf[1] == '\0')
64: break;
65:
66: line = (struct cvs_ent_line *)xmalloc(sizeof(*line));
67: line->buf = xstrdup(buf);
68: TAILQ_INSERT_TAIL(&(ep->cef_ent), line, entries_list);
69: }
1.52 joris 70:
1.25 jfb 71: (void)fclose(fp);
1.12 jfb 72: }
1.1 jfb 73:
1.57 joris 74: if ((fp = fopen(ep->cef_lpath, "r")) != NULL) {
75: while (fgets(buf, sizeof(buf), fp)) {
76: len = strlen(buf);
1.62 ray 77: if (len > 0 && buf[len - 1] == '\n')
78: buf[len - 1] = '\0';
1.57 joris 79:
80: p = &buf[1];
81:
82: if (buf[0] == 'A') {
83: line = xmalloc(sizeof(*line));
84: line->buf = xstrdup(p);
85: TAILQ_INSERT_TAIL(&(ep->cef_ent), line,
86: entries_list);
87: } else if (buf[0] == 'R') {
88: ent = cvs_ent_parse(p);
89: line = ent_get_line(ep, ent->ce_name);
1.65 joris 90: if (line != NULL) {
1.57 joris 91: TAILQ_REMOVE(&(ep->cef_ent), line,
92: entries_list);
1.65 joris 93: xfree(line->buf);
94: xfree(line);
95: }
1.57 joris 96: cvs_ent_free(ent);
97: }
98: }
1.4 jfb 99:
1.52 joris 100: (void)fclose(fp);
101: }
1.12 jfb 102:
1.1 jfb 103: return (ep);
104: }
105:
1.57 joris 106: struct cvs_ent *
107: cvs_ent_parse(const char *entry)
1.1 jfb 108: {
1.57 joris 109: int i;
1.70 joris 110: struct tm t;
1.5 jfb 111: struct cvs_ent *ent;
1.57 joris 112: char *fields[CVS_ENTRIES_NFIELDS], *buf, *sp, *dp;
1.5 jfb 113:
1.72 joris 114: buf = sp = xstrdup(entry);
1.57 joris 115: i = 0;
116: do {
117: dp = strchr(sp, CVS_ENTRIES_DELIM);
118: if (dp != NULL)
119: *(dp++) = '\0';
120: fields[i++] = sp;
121: sp = dp;
122: } while (dp != NULL && i < CVS_ENTRIES_NFIELDS);
1.8 jfb 123:
1.57 joris 124: if (i < CVS_ENTRIES_NFIELDS)
125: fatal("missing fields in entry line '%s'", entry);
1.5 jfb 126:
1.72 joris 127: ent = xmalloc(sizeof(*ent));
1.57 joris 128: ent->ce_buf = buf;
1.52 joris 129:
1.57 joris 130: if (*fields[0] == '\0')
131: ent->ce_type = CVS_ENT_FILE;
132: else if (*fields[0] == 'D')
133: ent->ce_type = CVS_ENT_DIR;
134: else
135: ent->ce_type = CVS_ENT_NONE;
136:
137: ent->ce_status = CVS_ENT_REG;
138: ent->ce_name = fields[1];
139: ent->ce_rev = NULL;
1.5 jfb 140:
1.57 joris 141: if (ent->ce_type == CVS_ENT_FILE) {
142: if (*fields[2] == '-') {
143: ent->ce_status = CVS_ENT_REMOVED;
144: sp = fields[2] + 1;
145: } else {
146: sp = fields[2];
147: if (fields[2][0] == '0' && fields[2][1] == '\0')
148: ent->ce_status = CVS_ENT_ADDED;
149: }
1.1 jfb 150:
1.57 joris 151: if ((ent->ce_rev = rcsnum_parse(sp)) == NULL)
152: fatal("failed to parse entry revision '%s'", entry);
1.1 jfb 153:
1.72 joris 154: if (fields[3][0] == '\0' ||
1.77 ray 155: strncmp(fields[3], CVS_DATE_DUMMY, sizeof(CVS_DATE_DUMMY) - 1) == 0 ||
1.57 joris 156: strncmp(fields[3], "Initial ", 8) == 0 ||
157: strncmp(fields[3], "Result of merge", 15) == 0)
158: ent->ce_mtime = CVS_DATE_DMSEC;
1.70 joris 159: else {
1.78 ! niallo 160: /* Date field can be a '+=' with remote to indicate
! 161: * conflict. In this case do nothing. */
! 162: if (strptime(fields[3], "%a %b %d %T %Y", &t) != NULL) {
! 163:
! 164: t.tm_isdst = -1; /* Figure out DST. */
! 165: t.tm_gmtoff = 0;
! 166: ent->ce_mtime = mktime(&t);
! 167: ent->ce_mtime += t.tm_gmtoff;
! 168: }
1.70 joris 169: }
1.3 jfb 170: }
1.1 jfb 171:
1.57 joris 172: ent->ce_conflict = fields[3];
173: if ((dp = strchr(ent->ce_conflict, '+')) != NULL)
174: *dp = '\0';
175: else
176: ent->ce_conflict = NULL;
1.1 jfb 177:
1.57 joris 178: if (strcmp(fields[4], ""))
179: ent->ce_opts = fields[4];
180: else
181: ent->ce_opts = NULL;
1.8 jfb 182:
1.57 joris 183: if (strcmp(fields[5], ""))
1.58 joris 184: ent->ce_tag = fields[5] + 1;
1.57 joris 185: else
186: ent->ce_tag = NULL;
1.3 jfb 187:
1.57 joris 188: return (ent);
1.3 jfb 189: }
190:
1.57 joris 191: struct cvs_ent *
192: cvs_ent_get(CVSENTRIES *ep, const char *name)
1.3 jfb 193: {
194: struct cvs_ent *ent;
1.57 joris 195: struct cvs_ent_line *l;
1.3 jfb 196:
1.57 joris 197: l = ent_get_line(ep, name);
198: if (l == NULL)
199: return (NULL);
1.3 jfb 200:
1.57 joris 201: ent = cvs_ent_parse(l->buf);
202: return (ent);
203: }
1.3 jfb 204:
1.57 joris 205: int
206: cvs_ent_exists(CVSENTRIES *ep, const char *name)
207: {
208: struct cvs_ent_line *l;
1.1 jfb 209:
1.57 joris 210: l = ent_get_line(ep, name);
211: if (l == NULL)
212: return (0);
1.8 jfb 213:
1.57 joris 214: return (1);
1.1 jfb 215: }
216:
1.57 joris 217: void
218: cvs_ent_close(CVSENTRIES *ep, int writefile)
1.9 jfb 219: {
1.57 joris 220: FILE *fp;
221: struct cvs_ent_line *l;
1.44 xsa 222:
1.57 joris 223: if (writefile) {
224: if ((fp = fopen(ep->cef_bpath, "w")) == NULL)
1.63 xsa 225: fatal("cvs_ent_close: fopen: `%s': %s",
226: ep->cef_path, strerror(errno));
1.57 joris 227: }
1.16 jfb 228:
1.57 joris 229: while ((l = TAILQ_FIRST(&(ep->cef_ent))) != NULL) {
230: if (writefile) {
231: fputs(l->buf, fp);
232: fputc('\n', fp);
1.51 joris 233: }
1.57 joris 234:
235: TAILQ_REMOVE(&(ep->cef_ent), l, entries_list);
236: xfree(l->buf);
237: xfree(l);
1.22 jfb 238: }
1.9 jfb 239:
1.57 joris 240: if (writefile) {
241: fputc('D', fp);
1.68 pyr 242: fputc('\n', fp);
1.57 joris 243: (void)fclose(fp);
244:
245: if (rename(ep->cef_bpath, ep->cef_path) == -1)
1.63 xsa 246: fatal("cvs_ent_close: rename: `%s'->`%s': %s",
247: ep->cef_bpath, ep->cef_path, strerror(errno));
1.57 joris 248:
249: (void)unlink(ep->cef_lpath);
250: }
1.9 jfb 251:
1.57 joris 252: xfree(ep->cef_path);
253: xfree(ep->cef_bpath);
254: xfree(ep->cef_lpath);
255: xfree(ep);
1.9 jfb 256: }
257:
1.57 joris 258: void
259: cvs_ent_add(CVSENTRIES *ep, const char *line)
1.1 jfb 260: {
1.57 joris 261: FILE *fp;
262: struct cvs_ent_line *l;
1.39 xsa 263: struct cvs_ent *ent;
1.1 jfb 264:
1.57 joris 265: if ((ent = cvs_ent_parse(line)) == NULL)
266: fatal("cvs_ent_add: parsing failed '%s'", line);
1.1 jfb 267:
1.57 joris 268: l = ent_get_line(ep, ent->ce_name);
269: if (l != NULL)
270: cvs_ent_remove(ep, ent->ce_name);
1.1 jfb 271:
1.57 joris 272: cvs_ent_free(ent);
1.1 jfb 273:
1.61 joris 274: if (cvs_server_active == 0)
275: cvs_log(LP_TRACE, "cvs_ent_add(%s, %s)", ep->cef_path, line);
1.1 jfb 276:
1.57 joris 277: if ((fp = fopen(ep->cef_lpath, "a")) == NULL)
1.63 xsa 278: fatal("cvs_ent_add: fopen: `%s': %s",
279: ep->cef_lpath, strerror(errno));
1.1 jfb 280:
1.57 joris 281: fputc('A', fp);
282: fputs(line, fp);
283: fputc('\n', fp);
1.1 jfb 284:
1.57 joris 285: (void)fclose(fp);
1.10 jfb 286:
1.57 joris 287: l = (struct cvs_ent_line *)xmalloc(sizeof(*l));
288: l->buf = xstrdup(line);
289: TAILQ_INSERT_TAIL(&(ep->cef_ent), l, entries_list);
290: }
1.10 jfb 291:
1.57 joris 292: void
293: cvs_ent_remove(CVSENTRIES *ep, const char *name)
294: {
295: FILE *fp;
296: struct cvs_ent_line *l;
1.1 jfb 297:
1.61 joris 298: if (cvs_server_active == 0)
299: cvs_log(LP_TRACE, "cvs_ent_remove(%s, %s)", ep->cef_path, name);
1.1 jfb 300:
1.57 joris 301: l = ent_get_line(ep, name);
302: if (l == NULL)
303: return;
1.1 jfb 304:
1.57 joris 305: if ((fp = fopen(ep->cef_lpath, "a")) == NULL)
1.63 xsa 306: fatal("cvs_ent_remove: fopen: `%s': %s", ep->cef_lpath,
307: strerror(errno));
1.38 joris 308:
1.57 joris 309: fputc('R', fp);
310: fputs(l->buf, fp);
311: fputc('\n', fp);
1.24 jfb 312:
1.57 joris 313: (void)fclose(fp);
1.24 jfb 314:
1.57 joris 315: TAILQ_REMOVE(&(ep->cef_ent), l, entries_list);
316: xfree(l->buf);
317: xfree(l);
1.5 jfb 318: }
319:
320: void
321: cvs_ent_free(struct cvs_ent *ent)
322: {
323: if (ent->ce_rev != NULL)
324: rcsnum_free(ent->ce_rev);
1.57 joris 325: xfree(ent->ce_buf);
1.53 joris 326: xfree(ent);
1.5 jfb 327: }
1.8 jfb 328:
1.57 joris 329: static struct cvs_ent_line *
330: ent_get_line(CVSENTRIES *ep, const char *name)
1.8 jfb 331: {
1.57 joris 332: char *p, *s;
333: struct cvs_ent_line *l;
1.8 jfb 334:
1.57 joris 335: TAILQ_FOREACH(l, &(ep->cef_ent), entries_list) {
336: if (l->buf[0] == 'D')
337: p = &(l->buf[2]);
338: else
339: p = &(l->buf[1]);
340:
341: if ((s = strchr(p, '/')) == NULL)
342: fatal("ent_get_line: bad entry line '%s'", l->buf);
343:
344: *s = '\0';
345:
346: if (!strcmp(p, name)) {
347: *s = '/';
348: return (l);
1.15 jfb 349: }
1.8 jfb 350:
1.57 joris 351: *s = '/';
1.8 jfb 352: }
353:
1.57 joris 354: return (NULL);
1.59 xsa 355: }
356:
357: void
358: cvs_parse_tagfile(char *dir, char **tagp, char **datep, int *nbp)
359: {
360: FILE *fp;
1.73 xsa 361: int i, linenum;
1.59 xsa 362: size_t len;
1.69 otto 363: char linebuf[128], tagpath[MAXPATHLEN];
1.59 xsa 364:
365: if (tagp != NULL)
1.60 joris 366: *tagp = NULL;
1.59 xsa 367:
368: if (datep != NULL)
1.60 joris 369: *datep = NULL;
1.59 xsa 370:
371: if (nbp != NULL)
372: *nbp = 0;
373:
1.73 xsa 374: i = snprintf(tagpath, MAXPATHLEN, "%s/%s", dir, CVS_PATH_TAG);
375: if (i < 0 || i >= MAXPATHLEN)
1.69 otto 376: return;
1.59 xsa 377:
378: if ((fp = fopen(tagpath, "r")) == NULL) {
379: if (errno != ENOENT)
380: cvs_log(LP_NOTICE, "failed to open `%s' : %s", tagpath,
381: strerror(errno));
1.69 otto 382: return;
1.59 xsa 383: }
384:
385: linenum = 0;
386:
387: while (fgets(linebuf, (int)sizeof(linebuf), fp) != NULL) {
388: linenum++;
389: if ((len = strlen(linebuf)) == 0)
390: continue;
391: if (linebuf[len - 1] != '\n') {
392: cvs_log(LP_NOTICE, "line too long in `%s:%d'",
393: tagpath, linenum);
394: break;
395: }
396: linebuf[--len] = '\0';
397:
398: switch (*linebuf) {
399: case 'T':
400: if (tagp != NULL)
401: *tagp = xstrdup(linebuf + 1);
402: break;
403: case 'D':
404: if (datep != NULL)
405: *datep = xstrdup(linebuf + 1);
406: break;
407: case 'N':
408: if (tagp != NULL)
409: *tagp = xstrdup(linebuf + 1);
410: if (nbp != NULL)
411: *nbp = 1;
412: break;
413: default:
414: break;
415: }
416: }
417: if (ferror(fp))
418: cvs_log(LP_NOTICE, "failed to read line from `%s'", tagpath);
419:
420: (void)fclose(fp);
421: }
422:
423: void
1.74 otto 424: cvs_write_tagfile(const char *dir, char *tag, char *date, int nb)
1.59 xsa 425: {
426: FILE *fp;
1.69 otto 427: char tagpath[MAXPATHLEN];
1.73 xsa 428: int i;
1.59 xsa 429:
430: if (cvs_noexec == 1)
431: return;
432:
1.73 xsa 433: i = snprintf(tagpath, MAXPATHLEN, "%s/%s", dir, CVS_PATH_TAG);
434: if (i < 0 || i >= MAXPATHLEN)
1.69 otto 435: return;
1.59 xsa 436:
437: if ((tag != NULL) || (date != NULL)) {
438: if ((fp = fopen(tagpath, "w+")) == NULL) {
439: if (errno != ENOENT) {
440: cvs_log(LP_NOTICE, "failed to open `%s' : %s",
441: tagpath, strerror(errno));
442: }
1.69 otto 443: return;
1.59 xsa 444: }
445: if (tag != NULL) {
446: if (nb != 0)
447: (void)fprintf(fp, "N%s\n", tag);
448: else
449: (void)fprintf(fp, "T%s\n", tag);
450: } else
451: (void)fprintf(fp, "D%s\n", date);
452:
453: (void)fclose(fp);
454: } else {
455: (void)cvs_unlink(tagpath);
456: }
1.1 jfb 457: }
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