Annotation of src/usr.bin/cvs/file.c, Revision 1.34
1.1 jfb 1: /* $OpenBSD$ */
2: /*
3: * Copyright (c) 2004 Jean-Francois Brousseau <jfb@openbsd.org>
1.26 jfb 4: * All rights reserved.
1.1 jfb 5: *
1.26 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: *
1.26 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
1.26 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
1.26 jfb 24: * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
1.1 jfb 25: */
26:
27: #include <sys/types.h>
28: #include <sys/queue.h>
29: #include <sys/stat.h>
30:
31: #include <pwd.h>
32: #include <errno.h>
33: #include <stdio.h>
34: #include <fcntl.h>
35: #include <dirent.h>
36: #include <stdlib.h>
37: #include <unistd.h>
38: #include <string.h>
39: #include <fnmatch.h>
40:
41: #include "cvs.h"
42: #include "log.h"
1.14 jfb 43: #include "file.h"
1.1 jfb 44:
45:
46: #define CVS_IGN_STATIC 0x01 /* pattern is static, no need to glob */
47:
48: #define CVS_CHAR_ISMETA(c) ((c == '*') || (c == '?') || (c == '['))
49:
50:
51: /* ignore pattern */
52: struct cvs_ignpat {
53: char ip_pat[MAXNAMLEN];
54: int ip_flags;
55: TAILQ_ENTRY (cvs_ignpat) ip_list;
56: };
57:
58:
59: /*
60: * Standard patterns to ignore.
61: */
62:
63: static const char *cvs_ign_std[] = {
64: ".",
65: "..",
66: "*.o",
67: "*.so",
68: "*.bak",
69: "*.orig",
70: "*.rej",
71: "*.exe",
72: "*.depend",
73: "CVS",
74: "core",
1.8 jfb 75: ".#*",
1.1 jfb 76: #ifdef OLD_SMELLY_CRUFT
77: "RCSLOG",
78: "tags",
79: "TAGS",
80: "RCS",
81: "SCCS",
82: "#*",
83: ",*",
84: #endif
85: };
86:
87:
1.11 jfb 88: /*
1.34 ! jfb 89: * Filename hash table used to avoid duplication of name strings when working
! 90: * on large source trees with common parts.
! 91: */
! 92:
! 93: SLIST_HEAD(cvs_fhb, cvs_fname);
! 94:
! 95: static struct cvs_fhb cvs_fnht[CVS_FILE_NBUCKETS];
! 96:
! 97:
! 98:
! 99: /*
1.11 jfb 100: * Entries in the CVS/Entries file with a revision of '0' have only been
101: * added. Compare against this revision to see if this is the case
102: */
1.4 jfb 103: static RCSNUM *cvs_addedrev;
104:
105:
1.1 jfb 106: TAILQ_HEAD(, cvs_ignpat) cvs_ign_pats;
107:
108:
1.34 ! jfb 109: static int cvs_file_getdir (CVSFILE *, int);
! 110: static void cvs_file_freedir (struct cvs_dir *);
! 111: static int cvs_file_sort (struct cvs_flist *, u_int);
! 112: static int cvs_file_cmp (const void *, const void *);
! 113: static int cvs_file_cmpname (const char *, const char *);
! 114: static u_int8_t cvs_file_hashname (const char *);
! 115: static struct cvs_fname* cvs_file_getname (const char *);
! 116: static CVSFILE* cvs_file_alloc (const char *, u_int);
! 117: static CVSFILE* cvs_file_lget (const char *, int, CVSFILE *);
1.3 jfb 118:
119:
120:
1.1 jfb 121: /*
122: * cvs_file_init()
123: *
124: */
125:
126: int
127: cvs_file_init(void)
128: {
129: int i;
130: size_t len;
131: char path[MAXPATHLEN], buf[MAXNAMLEN];
132: FILE *ifp;
133: struct passwd *pwd;
134:
1.34 ! jfb 135: /* initialize the filename hash table */
! 136: for (i = 0; i < CVS_FILE_NBUCKETS; i++)
! 137: SLIST_INIT(&(cvs_fnht[i]));
! 138:
1.1 jfb 139: TAILQ_INIT(&cvs_ign_pats);
140:
1.4 jfb 141: cvs_addedrev = rcsnum_alloc();
142: rcsnum_aton("0", NULL, cvs_addedrev);
143:
1.1 jfb 144: /* standard patterns to ignore */
1.10 jfb 145: for (i = 0; i < (int)(sizeof(cvs_ign_std)/sizeof(char *)); i++)
1.26 jfb 146: cvs_file_ignore(cvs_ign_std[i]);
1.1 jfb 147:
148: /* read the cvsignore file in the user's home directory, if any */
149: pwd = getpwuid(getuid());
150: if (pwd != NULL) {
151: snprintf(path, sizeof(path), "%s/.cvsignore", pwd->pw_dir);
152: ifp = fopen(path, "r");
153: if (ifp == NULL) {
154: if (errno != ENOENT)
1.34 ! jfb 155: cvs_log(LP_ERRNO,
! 156: "failed to open user's cvsignore", path);
1.1 jfb 157: }
158: else {
159: while (fgets(buf, sizeof(buf), ifp) != NULL) {
160: len = strlen(buf);
161: if (len == 0)
162: continue;
163: if (buf[len - 1] != '\n') {
164: cvs_log(LP_ERR, "line too long in `%s'",
165: path);
166: }
167: buf[--len] = '\0';
168: cvs_file_ignore(buf);
169: }
170: (void)fclose(ifp);
171: }
172: }
173:
174: return (0);
175: }
176:
177:
178: /*
179: * cvs_file_ignore()
180: *
181: * Add the pattern <pat> to the list of patterns for files to ignore.
182: * Returns 0 on success, or -1 on failure.
183: */
184:
185: int
186: cvs_file_ignore(const char *pat)
187: {
188: char *cp;
189: struct cvs_ignpat *ip;
190:
191: ip = (struct cvs_ignpat *)malloc(sizeof(*ip));
192: if (ip == NULL) {
193: cvs_log(LP_ERR, "failed to allocate space for ignore pattern");
194: return (-1);
195: }
196:
197: strlcpy(ip->ip_pat, pat, sizeof(ip->ip_pat));
198:
199: /* check if we will need globbing for that pattern */
200: ip->ip_flags = CVS_IGN_STATIC;
201: for (cp = ip->ip_pat; *cp != '\0'; cp++) {
202: if (CVS_CHAR_ISMETA(*cp)) {
203: ip->ip_flags &= ~CVS_IGN_STATIC;
204: break;
205: }
206: }
207:
208: TAILQ_INSERT_TAIL(&cvs_ign_pats, ip, ip_list);
209:
210: return (0);
211: }
212:
213:
214: /*
1.5 jfb 215: * cvs_file_chkign()
1.1 jfb 216: *
217: * Returns 1 if the filename <file> is matched by one of the ignore
218: * patterns, or 0 otherwise.
219: */
220:
221: int
1.5 jfb 222: cvs_file_chkign(const char *file)
1.1 jfb 223: {
1.23 jfb 224: int flags;
1.1 jfb 225: struct cvs_ignpat *ip;
226:
1.23 jfb 227: flags = FNM_PERIOD;
228: if (cvs_nocase)
229: flags |= FNM_CASEFOLD;
230:
1.1 jfb 231: TAILQ_FOREACH(ip, &cvs_ign_pats, ip_list) {
232: if (ip->ip_flags & CVS_IGN_STATIC) {
1.23 jfb 233: if (cvs_file_cmpname(file, ip->ip_pat) == 0)
1.1 jfb 234: return (1);
235: }
1.23 jfb 236: else if (fnmatch(ip->ip_pat, file, flags) == 0)
1.1 jfb 237: return (1);
238: }
239:
240: return (0);
241: }
242:
243:
244: /*
1.6 jfb 245: * cvs_file_create()
1.1 jfb 246: *
1.6 jfb 247: * Create a new file whose path is specified in <path> and of type <type>.
1.26 jfb 248: * If the type is DT_DIR, the CVS administrative repository and files will be
249: * created.
1.25 jfb 250: * Returns the created file on success, or NULL on failure.
1.1 jfb 251: */
252:
1.6 jfb 253: CVSFILE*
1.34 ! jfb 254: cvs_file_create(CVSFILE *parent, const char *path, u_int type, mode_t mode)
1.1 jfb 255: {
1.6 jfb 256: int fd;
1.34 ! jfb 257: char fp[MAXPATHLEN];
1.6 jfb 258: CVSFILE *cfp;
1.1 jfb 259:
1.34 ! jfb 260: printf("cvs_file_create(%s)\n", path);
1.6 jfb 261: cfp = cvs_file_alloc(path, type);
262: if (cfp == NULL)
263: return (NULL);
1.26 jfb 264:
1.6 jfb 265: cfp->cf_type = type;
1.22 jfb 266: cfp->cf_mode = mode;
1.34 ! jfb 267: cfp->cf_parent = parent;
1.1 jfb 268:
1.34 ! jfb 269: if (type == DT_DIR) {
! 270: cfp->cf_ddat->cd_root = cvsroot_get(path);
! 271: cfp->cf_ddat->cd_repo = strdup(cvs_file_getpath(cfp,
! 272: fp, sizeof(fp)));
! 273: if (cfp->cf_ddat->cd_repo == NULL) {
! 274: cvs_file_free(cfp);
! 275: return (NULL);
! 276: }
1.33 joris 277:
1.26 jfb 278: if ((mkdir(path, mode) == -1) || (cvs_mkadmin(cfp, mode) < 0)) {
1.6 jfb 279: cvs_file_free(cfp);
280: return (NULL);
281: }
1.26 jfb 282:
1.27 jfb 283: cfp->cf_ddat->cd_ent = cvs_ent_open(path, O_RDWR);
1.1 jfb 284: }
1.6 jfb 285: else {
286: fd = open(path, O_WRONLY|O_CREAT|O_EXCL, mode);
287: if (fd == -1) {
288: cvs_file_free(cfp);
1.1 jfb 289: return (NULL);
290: }
1.6 jfb 291: (void)close(fd);
1.1 jfb 292: }
293:
1.6 jfb 294: return (cfp);
1.3 jfb 295: }
296:
297:
298: /*
299: * cvs_file_get()
300: *
301: * Load a cvs_file structure with all the information pertaining to the file
302: * <path>.
1.4 jfb 303: * The <flags> parameter specifies various flags that alter the behaviour of
1.21 jfb 304: * the function. The CF_RECURSE flag causes the function to recursively load
305: * subdirectories when <path> is a directory.
306: * The CF_SORT flag causes the files to be sorted in alphabetical order upon
307: * loading. The special case of "." as a path specification generates
308: * recursion for a single level and is equivalent to calling cvs_file_get() on
309: * all files of that directory.
1.3 jfb 310: * Returns a pointer to the cvs file structure, which must later be freed
311: * with cvs_file_free().
312: */
313:
1.14 jfb 314: CVSFILE*
1.3 jfb 315: cvs_file_get(const char *path, int flags)
316: {
1.14 jfb 317: return cvs_file_lget(path, flags, NULL);
1.9 jfb 318: }
319:
320:
321: /*
322: * cvs_file_getspec()
323: *
324: * Load a specific set of files whose paths are given in the vector <fspec>,
325: * whose size is given in <fsn>.
326: * Returns a pointer to the lowest common subdirectory to all specified
327: * files.
328: */
329:
330: CVSFILE*
331: cvs_file_getspec(char **fspec, int fsn, int flags)
332: {
1.26 jfb 333: int i;
334: char *sp, *np, pcopy[MAXPATHLEN];
335: CVSFILE *base, *cf, *nf;
336:
337: base = cvs_file_get(".", 0);
338: if (base == NULL)
339: return (NULL);
340:
341: for (i = 0; i < fsn; i++) {
342: strlcpy(pcopy, fspec[i], sizeof(pcopy));
343: cf = base;
344: sp = pcopy;
345:
346: do {
347: np = strchr(sp, '/');
348: if (np != NULL)
349: *np = '\0';
350: nf = cvs_file_find(cf, sp);
351: if (nf == NULL) {
352: nf = cvs_file_lget(pcopy, 0, cf);
353: if (nf == NULL) {
354: cvs_file_free(base);
355: return (NULL);
356: }
357:
358: cvs_file_attach(cf, nf);
359: }
360:
361: if (np != NULL) {
362: *np = '/';
363: sp = np + 1;
364: }
365:
366: cf = nf;
367: } while (np != NULL);
368: }
369:
370: return (base);
1.3 jfb 371: }
372:
373:
374: /*
1.13 jfb 375: * cvs_file_find()
376: *
377: * Find the pointer to a CVS file entry within the file hierarchy <hier>.
378: * The file's pathname <path> must be relative to the base of <hier>.
379: * Returns the entry on success, or NULL on failure.
380: */
381:
382: CVSFILE*
383: cvs_file_find(CVSFILE *hier, const char *path)
384: {
385: char *pp, *sp, pbuf[MAXPATHLEN];
386: CVSFILE *sf, *cf;
387:
388: strlcpy(pbuf, path, sizeof(pbuf));
389:
390: cf = hier;
391: pp = pbuf;
392: do {
393: sp = strchr(pp, '/');
394: if (sp != NULL)
1.24 jfb 395: *(sp++) = '\0';
1.13 jfb 396:
397: /* special case */
398: if (*pp == '.') {
399: if ((*(pp + 1) == '.') && (*(pp + 2) == '\0')) {
400: /* request to go back to parent */
401: if (cf->cf_parent == NULL) {
402: cvs_log(LP_NOTICE,
403: "path %s goes back too far", path);
404: return (NULL);
405: }
406: cf = cf->cf_parent;
407: continue;
408: }
409: else if (*(pp + 1) == '\0')
410: continue;
411: }
412:
413: TAILQ_FOREACH(sf, &(cf->cf_ddat->cd_files), cf_list)
1.34 ! jfb 414: if (cvs_file_cmpname(pp, CVS_FILE_NAME(sf)) == 0)
1.13 jfb 415: break;
416: if (sf == NULL)
417: return (NULL);
418:
419: cf = sf;
420: pp = sp;
421: } while (sp != NULL);
422:
1.24 jfb 423: return (cf);
1.13 jfb 424: }
425:
426:
427: /*
1.34 ! jfb 428: * cvs_file_getpath()
! 429: *
! 430: * Get the full path of the file <file> and store it in <buf>, which is of
! 431: * size <len>. For portability, it is recommended that <buf> always be
! 432: * at least MAXPATHLEN bytes long.
! 433: * Returns a pointer to the start of the path on success, or NULL on failure.
! 434: */
! 435:
! 436: char*
! 437: cvs_file_getpath(CVSFILE *file, char *buf, size_t len)
! 438: {
! 439: u_int i;
! 440: char *fp, *namevec[CVS_FILE_MAXDEPTH];
! 441: CVSFILE *top;
! 442:
! 443: buf[0] = '\0';
! 444: i = CVS_FILE_MAXDEPTH;
! 445: memset(namevec, 0, sizeof(namevec));
! 446:
! 447: /* find the top node */
! 448: for (top = file; (top != NULL) && (i > 0); top = top->cf_parent) {
! 449: fp = CVS_FILE_NAME(top);
! 450:
! 451: /* skip self-references */
! 452: if ((fp[0] == '.') && (fp[1] == '\0'))
! 453: continue;
! 454: namevec[--i] = fp;
! 455: }
! 456:
! 457: if (i == 0)
! 458: return (NULL);
! 459: else if (i == CVS_FILE_MAXDEPTH) {
! 460: strlcpy(buf, ".", len);
! 461: return (buf);
! 462: }
! 463:
! 464: while (i < CVS_FILE_MAXDEPTH - 1) {
! 465: strlcat(buf, namevec[i++], len);
! 466: strlcat(buf, "/", len);
! 467: }
! 468: strlcat(buf, namevec[i], len);
! 469:
! 470: return (buf);
! 471: }
! 472:
! 473:
! 474: /*
1.22 jfb 475: * cvs_file_attach()
476: *
477: * Attach the file <file> as one of the children of parent <parent>, which
478: * has to be a file of type DT_DIR.
479: * Returns 0 on success, or -1 on failure.
480: */
481:
482: int
483: cvs_file_attach(CVSFILE *parent, CVSFILE *file)
484: {
1.23 jfb 485: struct cvs_dir *dp;
1.22 jfb 486:
487: if (parent->cf_type != DT_DIR)
488: return (-1);
489:
1.23 jfb 490: dp = parent->cf_ddat;
491:
492: TAILQ_INSERT_TAIL(&(dp->cd_files), file, cf_list);
493: dp->cd_nfiles++;
1.22 jfb 494: file->cf_parent = parent;
495:
496: return (0);
497: }
498:
499:
500: /*
1.3 jfb 501: * cvs_file_getdir()
502: *
503: * Get a cvs directory structure for the directory whose path is <dir>.
1.30 jfb 504: * This function should not free the directory information on error, as this
505: * is performed by cvs_file_free().
1.3 jfb 506: */
507:
1.6 jfb 508: static int
1.14 jfb 509: cvs_file_getdir(CVSFILE *cf, int flags)
1.3 jfb 510: {
1.13 jfb 511: int ret, fd;
1.16 jfb 512: u_int ndirs;
1.3 jfb 513: long base;
1.13 jfb 514: void *dp, *ep;
1.34 ! jfb 515: char fbuf[2048], pbuf[MAXPATHLEN], fpath[MAXPATHLEN];
1.3 jfb 516: struct dirent *ent;
1.14 jfb 517: CVSFILE *cfp;
1.20 jfb 518: struct stat st;
1.3 jfb 519: struct cvs_dir *cdp;
1.10 jfb 520: struct cvs_flist dirs;
1.3 jfb 521:
1.18 jfb 522: ndirs = 0;
1.10 jfb 523: TAILQ_INIT(&dirs);
1.7 jfb 524: cdp = cf->cf_ddat;
525:
1.34 ! jfb 526: cvs_file_getpath(cf, fpath, sizeof(fpath));
! 527:
1.26 jfb 528: if (cf->cf_cvstat != CVS_FST_UNKNOWN) {
1.34 ! jfb 529: cdp->cd_root = cvsroot_get(fpath);
1.30 jfb 530: if (cdp->cd_root == NULL)
1.26 jfb 531: return (-1);
1.3 jfb 532:
1.26 jfb 533: if (flags & CF_MKADMIN)
534: cvs_mkadmin(cf, 0755);
1.14 jfb 535:
1.26 jfb 536: /* if the CVS administrative directory exists, load the info */
1.34 ! jfb 537: snprintf(pbuf, sizeof(pbuf), "%s/" CVS_PATH_CVSDIR, fpath);
1.26 jfb 538: if ((stat(pbuf, &st) == 0) && S_ISDIR(st.st_mode)) {
1.34 ! jfb 539: if (cvs_readrepo(fpath, pbuf, sizeof(pbuf)) == 0) {
1.26 jfb 540: cdp->cd_repo = strdup(pbuf);
541: if (cdp->cd_repo == NULL) {
1.28 jfb 542: cvs_log(LP_ERRNO,
543: "failed to dup repository string");
1.26 jfb 544: return (-1);
545: }
1.20 jfb 546: }
1.26 jfb 547:
1.34 ! jfb 548: cdp->cd_ent = cvs_ent_open(fpath, O_RDWR);
1.20 jfb 549: }
550: }
1.14 jfb 551:
1.26 jfb 552: if (!(flags & CF_RECURSE) || (cf->cf_cvstat == CVS_FST_UNKNOWN))
553: return (0);
554:
1.34 ! jfb 555: fd = open(fpath, O_RDONLY);
1.3 jfb 556: if (fd == -1) {
1.34 ! jfb 557: cvs_log(LP_ERRNO, "failed to open `%s'", fpath);
1.6 jfb 558: return (-1);
1.3 jfb 559: }
560:
1.11 jfb 561: do {
562: ret = getdirentries(fd, fbuf, sizeof(fbuf), &base);
563: if (ret == -1) {
564: cvs_log(LP_ERRNO, "failed to get directory entries");
565: (void)close(fd);
566: return (-1);
567: }
1.10 jfb 568:
1.11 jfb 569: dp = fbuf;
570: ep = fbuf + (size_t)ret;
571: while (dp < ep) {
572: ent = (struct dirent *)dp;
1.32 jfb 573: dp += ent->d_reclen;
1.31 jfb 574: if (ent->d_fileno == 0)
575: continue;
1.11 jfb 576:
577: if ((flags & CF_IGNORE) && cvs_file_chkign(ent->d_name))
1.24 jfb 578: continue;
579:
580: if ((flags & CF_NOSYMS) && (ent->d_type == DT_LNK))
1.11 jfb 581: continue;
582:
1.34 ! jfb 583: snprintf(pbuf, sizeof(pbuf), "%s/%s", fpath,
! 584: ent->d_name);
1.14 jfb 585: cfp = cvs_file_lget(pbuf, flags, cf);
1.11 jfb 586: if (cfp != NULL) {
1.26 jfb 587: if (cfp->cf_type == DT_DIR) {
588: TAILQ_INSERT_TAIL(&dirs, cfp, cf_list);
1.16 jfb 589: ndirs++;
590: }
591: else {
1.26 jfb 592: TAILQ_INSERT_TAIL(&(cdp->cd_files), cfp,
1.11 jfb 593: cf_list);
1.16 jfb 594: cdp->cd_nfiles++;
595: }
1.11 jfb 596: }
1.4 jfb 597: }
1.11 jfb 598: } while (ret > 0);
1.14 jfb 599:
1.34 ! jfb 600: #if 1
! 601: cvs_ent_close(cdp->cd_ent);
! 602: cdp->cd_ent = NULL;
! 603: #endif
! 604:
1.10 jfb 605: if (flags & CF_SORT) {
1.16 jfb 606: cvs_file_sort(&(cdp->cd_files), cdp->cd_nfiles);
607: cvs_file_sort(&dirs, ndirs);
1.10 jfb 608: }
1.26 jfb 609:
610: while (!TAILQ_EMPTY(&dirs)) {
611: cfp = TAILQ_FIRST(&dirs);
612: TAILQ_REMOVE(&dirs, cfp, cf_list);
1.10 jfb 613: TAILQ_INSERT_TAIL(&(cdp->cd_files), cfp, cf_list);
1.26 jfb 614: }
1.16 jfb 615: cdp->cd_nfiles += ndirs;
1.3 jfb 616:
617: (void)close(fd);
618:
1.6 jfb 619: return (0);
1.3 jfb 620: }
621:
622:
623: /*
624: * cvs_file_free()
625: *
626: * Free a cvs_file structure and its contents.
627: */
628:
629: void
1.14 jfb 630: cvs_file_free(CVSFILE *cf)
1.3 jfb 631: {
632: if (cf->cf_ddat != NULL)
633: cvs_file_freedir(cf->cf_ddat);
634: free(cf);
1.5 jfb 635: }
636:
637:
638: /*
639: * cvs_file_examine()
640: *
641: * Examine the contents of the CVS file structure <cf> with the function
642: * <exam>. The function is called for all subdirectories and files of the
643: * root file.
644: */
645:
646: int
647: cvs_file_examine(CVSFILE *cf, int (*exam)(CVSFILE *, void *), void *arg)
648: {
649: int ret;
1.14 jfb 650: CVSFILE *fp;
1.5 jfb 651:
652: if (cf->cf_type == DT_DIR) {
653: ret = (*exam)(cf, arg);
1.10 jfb 654: TAILQ_FOREACH(fp, &(cf->cf_ddat->cd_files), cf_list) {
1.5 jfb 655: ret = cvs_file_examine(fp, exam, arg);
656: if (ret == -1)
1.13 jfb 657: break;
1.5 jfb 658: }
659: }
660: else
1.13 jfb 661: ret = (*exam)(cf, arg);
662:
663: return (ret);
1.3 jfb 664: }
665:
666:
667: /*
668: * cvs_file_freedir()
669: *
670: * Free a cvs_dir structure and its contents.
671: */
672:
673: static void
674: cvs_file_freedir(struct cvs_dir *cd)
675: {
1.14 jfb 676: CVSFILE *cfp;
1.3 jfb 677:
678: if (cd->cd_root != NULL)
679: cvsroot_free(cd->cd_root);
680: if (cd->cd_repo != NULL)
681: free(cd->cd_repo);
682:
1.14 jfb 683: if (cd->cd_ent != NULL)
684: cvs_ent_close(cd->cd_ent);
685:
1.10 jfb 686: while (!TAILQ_EMPTY(&(cd->cd_files))) {
687: cfp = TAILQ_FIRST(&(cd->cd_files));
688: TAILQ_REMOVE(&(cd->cd_files), cfp, cf_list);
1.3 jfb 689: cvs_file_free(cfp);
690: }
691: }
692:
693:
694: /*
695: * cvs_file_sort()
696: *
1.16 jfb 697: * Sort a list of cvs file structures according to their filename. The list
698: * <flp> is modified according to the sorting algorithm. The number of files
699: * in the list must be given by <nfiles>.
700: * Returns 0 on success, or -1 on failure.
1.3 jfb 701: */
702:
703: static int
1.16 jfb 704: cvs_file_sort(struct cvs_flist *flp, u_int nfiles)
1.3 jfb 705: {
706: int i;
707: size_t nb;
1.16 jfb 708: CVSFILE *cf, **cfvec;
709:
710: cfvec = (CVSFILE **)calloc(nfiles, sizeof(CVSFILE *));
711: if (cfvec == NULL) {
712: cvs_log(LP_ERRNO, "failed to allocate sorting vector");
713: return (-1);
714: }
1.3 jfb 715:
716: i = 0;
1.10 jfb 717: TAILQ_FOREACH(cf, flp, cf_list) {
1.16 jfb 718: if (i == (int)nfiles) {
1.3 jfb 719: cvs_log(LP_WARN, "too many files to sort");
1.16 jfb 720: /* rebuild the list and abort sorting */
721: while (--i >= 0)
722: TAILQ_INSERT_HEAD(flp, cfvec[i], cf_list);
723: free(cfvec);
1.3 jfb 724: return (-1);
725: }
1.16 jfb 726: cfvec[i++] = cf;
1.3 jfb 727:
728: /* now unlink it from the list,
729: * we'll put it back in order later
730: */
1.10 jfb 731: TAILQ_REMOVE(flp, cf, cf_list);
1.3 jfb 732: }
733:
734: /* clear the list just in case */
1.10 jfb 735: TAILQ_INIT(flp);
1.3 jfb 736: nb = (size_t)i;
737:
738: heapsort(cfvec, nb, sizeof(cf), cvs_file_cmp);
739:
740: /* rebuild the list from the bottom up */
741: for (i = (int)nb - 1; i >= 0; i--)
1.10 jfb 742: TAILQ_INSERT_HEAD(flp, cfvec[i], cf_list);
1.3 jfb 743:
1.16 jfb 744: free(cfvec);
1.3 jfb 745: return (0);
746: }
747:
748:
749: static int
750: cvs_file_cmp(const void *f1, const void *f2)
751: {
1.14 jfb 752: CVSFILE *cf1, *cf2;
753: cf1 = *(CVSFILE **)f1;
754: cf2 = *(CVSFILE **)f2;
1.34 ! jfb 755: return cvs_file_cmpname(CVS_FILE_NAME(cf1), CVS_FILE_NAME(cf2));
1.6 jfb 756: }
757:
758:
1.34 ! jfb 759: /*
! 760: * cvs_file_alloc()
! 761: *
! 762: * Allocate a CVSFILE structure and initialize its internals.
! 763: */
! 764:
1.6 jfb 765: CVSFILE*
766: cvs_file_alloc(const char *path, u_int type)
767: {
768: size_t len;
769: char pbuf[MAXPATHLEN];
1.34 ! jfb 770: const char *fnp;
1.6 jfb 771: CVSFILE *cfp;
772: struct cvs_dir *ddat;
773:
1.14 jfb 774: cfp = (CVSFILE *)malloc(sizeof(*cfp));
1.6 jfb 775: if (cfp == NULL) {
776: cvs_log(LP_ERRNO, "failed to allocate CVS file data");
777: return (NULL);
778: }
779: memset(cfp, 0, sizeof(*cfp));
780:
781: /* ditch trailing slashes */
782: strlcpy(pbuf, path, sizeof(pbuf));
783: len = strlen(pbuf);
784: while (pbuf[len - 1] == '/')
785: pbuf[--len] = '\0';
786:
1.34 ! jfb 787: fnp = strrchr(path, '/');
! 788: if (fnp == NULL)
! 789: fnp = path;
! 790: else
! 791: fnp++;
! 792:
! 793: cfp->cf_name = cvs_file_getname(fnp);
! 794: if (cfp->cf_name == NULL) {
! 795: cvs_log(LP_ERR, "WTF!?");
1.6 jfb 796: return (NULL);
797: }
798: cfp->cf_type = type;
799: cfp->cf_cvstat = CVS_FST_UNKNOWN;
800:
801: if (type == DT_DIR) {
802: ddat = (struct cvs_dir *)malloc(sizeof(*ddat));
803: if (ddat == NULL) {
804: cvs_file_free(cfp);
805: return (NULL);
806: }
807: memset(ddat, 0, sizeof(*ddat));
1.10 jfb 808: TAILQ_INIT(&(ddat->cd_files));
1.6 jfb 809: cfp->cf_ddat = ddat;
810: }
811: return (cfp);
1.1 jfb 812: }
1.14 jfb 813:
814:
815: /*
816: * cvs_file_lget()
817: *
818: * Get the file and link it with the parent right away.
1.22 jfb 819: * Returns a pointer to the created file structure on success, or NULL on
820: * failure.
1.14 jfb 821: */
822:
823: static CVSFILE*
824: cvs_file_lget(const char *path, int flags, CVSFILE *parent)
825: {
826: int cwd;
827: struct stat st;
828: CVSFILE *cfp;
1.34 ! jfb 829: struct cvs_ent *ent = NULL;
1.14 jfb 830:
831: if (strcmp(path, ".") == 0)
832: cwd = 1;
833: else
834: cwd = 0;
835:
836: if (stat(path, &st) == -1) {
837: cvs_log(LP_ERRNO, "failed to stat %s", path);
838: return (NULL);
839: }
840:
841: cfp = cvs_file_alloc(path, IFTODT(st.st_mode));
842: if (cfp == NULL) {
843: cvs_log(LP_ERRNO, "failed to allocate CVS file data");
844: return (NULL);
845: }
846: cfp->cf_parent = parent;
1.22 jfb 847: cfp->cf_mode = st.st_mode & ACCESSPERMS;
848: cfp->cf_mtime = st.st_mtime;
1.14 jfb 849:
850: if ((parent != NULL) && (CVS_DIR_ENTRIES(parent) != NULL)) {
1.34 ! jfb 851: ent = cvs_ent_get(CVS_DIR_ENTRIES(parent), CVS_FILE_NAME(cfp));
1.14 jfb 852: }
853:
1.26 jfb 854: if (ent == NULL) {
1.14 jfb 855: cfp->cf_cvstat = (cwd == 1) ?
856: CVS_FST_UPTODATE : CVS_FST_UNKNOWN;
1.26 jfb 857: }
1.14 jfb 858: else {
859: /* always show directories as up-to-date */
860: if (ent->ce_type == CVS_ENT_DIR)
861: cfp->cf_cvstat = CVS_FST_UPTODATE;
862: else if (rcsnum_cmp(ent->ce_rev, cvs_addedrev, 2) == 0)
863: cfp->cf_cvstat = CVS_FST_ADDED;
864: else {
865: /* check last modified time */
1.28 jfb 866: if (ent->ce_mtime == st.st_mtime)
1.14 jfb 867: cfp->cf_cvstat = CVS_FST_UPTODATE;
868: else
869: cfp->cf_cvstat = CVS_FST_MODIFIED;
870: }
871: }
872:
1.26 jfb 873: if ((cfp->cf_type == DT_DIR) && (cvs_file_getdir(cfp, flags) < 0)) {
874: cvs_file_free(cfp);
875: return (NULL);
1.14 jfb 876: }
877:
878: return (cfp);
1.23 jfb 879: }
880:
881:
882: static int
883: cvs_file_cmpname(const char *name1, const char *name2)
884: {
885: return (cvs_nocase == 0) ? (strcmp(name1, name2)) :
886: (strcasecmp(name1, name2));
1.34 ! jfb 887: }
! 888:
! 889:
! 890: /*
! 891: * cvs_file_hashname()
! 892: *
! 893: * Generate an 8 bit hash value from the name of a file.
! 894: * XXX Improve my distribution!
! 895: */
! 896:
! 897: static u_int8_t
! 898: cvs_file_hashname(const char *name)
! 899: {
! 900: const char *np;
! 901: u_int8_t h;
! 902:
! 903: h = 0xb5;
! 904: for (np = name; *np != '\0'; np++)
! 905: h ^= (*np << 3 ^ *np >> 1);
! 906:
! 907: return (h);
! 908: }
! 909:
! 910:
! 911: /*
! 912: * cvs_file_getname()
! 913: *
! 914: * Look for the file name <name> in the filename hash table.
! 915: * If no entry is found for that name, a new one is created and inserted into
! 916: * the table. The name's reference count is increased.
! 917: */
! 918:
! 919: static struct cvs_fname*
! 920: cvs_file_getname(const char *name)
! 921: {
! 922: u_int8_t h;
! 923: struct cvs_fname *fnp;
! 924:
! 925: h = cvs_file_hashname(name);
! 926:
! 927: SLIST_FOREACH(fnp, &(cvs_fnht[h]), cf_list)
! 928: if (strcmp(name, fnp->cf_name) == 0) {
! 929: fnp->cf_ref++;
! 930: break;
! 931: }
! 932:
! 933: if (fnp == NULL) {
! 934: fnp = (struct cvs_fname *)malloc(sizeof(*fnp));
! 935: if (fnp == NULL) {
! 936: cvs_log(LP_ERRNO,
! 937: "failed to allocate new file name entry");
! 938: return (NULL);
! 939: }
! 940:
! 941: fnp->cf_name = strdup(name);
! 942: fnp->cf_ref = 1;
! 943: SLIST_INSERT_HEAD(&(cvs_fnht[h]), fnp, cf_list);
! 944: }
! 945:
! 946: return (fnp);
1.14 jfb 947: }
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