Annotation of src/usr.bin/cvs/file.c, Revision 1.52
1.52 ! jfb 1: /* $OpenBSD: file.c,v 1.51 2005/01/12 20:10:09 jfb Exp $ */
1.1 jfb 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>
1.51 jfb 35: #include <libgen.h>
1.1 jfb 36: #include <dirent.h>
37: #include <stdlib.h>
38: #include <unistd.h>
39: #include <string.h>
40: #include <fnmatch.h>
41:
42: #include "cvs.h"
43: #include "log.h"
1.14 jfb 44: #include "file.h"
1.1 jfb 45:
46:
47: #define CVS_IGN_STATIC 0x01 /* pattern is static, no need to glob */
48:
49: #define CVS_CHAR_ISMETA(c) ((c == '*') || (c == '?') || (c == '['))
50:
51:
52: /* ignore pattern */
53: struct cvs_ignpat {
54: char ip_pat[MAXNAMLEN];
55: int ip_flags;
56: TAILQ_ENTRY (cvs_ignpat) ip_list;
57: };
58:
59:
60: /*
61: * Standard patterns to ignore.
62: */
63: static const char *cvs_ign_std[] = {
64: ".",
65: "..",
66: "*.o",
67: "*.so",
1.45 xsa 68: "*.a",
1.1 jfb 69: "*.bak",
70: "*.orig",
71: "*.rej",
1.45 xsa 72: "*.old",
1.1 jfb 73: "*.exe",
74: "*.depend",
1.45 xsa 75: "*.obj",
76: "*.elc",
77: "*.ln",
78: "*.olb",
1.1 jfb 79: "CVS",
80: "core",
1.49 jfb 81: "*.core",
1.8 jfb 82: ".#*",
1.45 xsa 83: "*~",
84: "_$*",
85: "*$",
1.1 jfb 86: #ifdef OLD_SMELLY_CRUFT
87: "RCSLOG",
88: "tags",
89: "TAGS",
90: "RCS",
91: "SCCS",
1.45 xsa 92: "cvslog.*", /* to ignore CVS_CLIENT_LOG output */
1.1 jfb 93: "#*",
94: ",*",
95: #endif
96: };
97:
98:
1.11 jfb 99: /*
1.34 jfb 100: * Filename hash table used to avoid duplication of name strings when working
101: * on large source trees with common parts.
102: */
103: SLIST_HEAD(cvs_fhb, cvs_fname);
104:
105: static struct cvs_fhb cvs_fnht[CVS_FILE_NBUCKETS];
106:
107:
108:
109: /*
1.11 jfb 110: * Entries in the CVS/Entries file with a revision of '0' have only been
111: * added. Compare against this revision to see if this is the case
112: */
1.4 jfb 113: static RCSNUM *cvs_addedrev;
114:
115:
1.1 jfb 116: TAILQ_HEAD(, cvs_ignpat) cvs_ign_pats;
117:
118:
1.34 jfb 119: static int cvs_file_getdir (CVSFILE *, int);
120: static void cvs_file_freedir (struct cvs_dir *);
121: static int cvs_file_sort (struct cvs_flist *, u_int);
122: static int cvs_file_cmp (const void *, const void *);
123: static int cvs_file_cmpname (const char *, const char *);
124: static u_int8_t cvs_file_hashname (const char *);
125: static struct cvs_fname* cvs_file_getname (const char *);
1.47 jfb 126: static void cvs_file_freename (struct cvs_fname *);
1.34 jfb 127: static CVSFILE* cvs_file_alloc (const char *, u_int);
128: static CVSFILE* cvs_file_lget (const char *, int, CVSFILE *);
1.3 jfb 129:
130:
131:
1.1 jfb 132: /*
133: * cvs_file_init()
134: *
135: */
136: int
137: cvs_file_init(void)
138: {
139: int i;
140: size_t len;
141: char path[MAXPATHLEN], buf[MAXNAMLEN];
142: FILE *ifp;
143: struct passwd *pwd;
144:
1.34 jfb 145: /* initialize the filename hash table */
146: for (i = 0; i < CVS_FILE_NBUCKETS; i++)
147: SLIST_INIT(&(cvs_fnht[i]));
148:
1.1 jfb 149: TAILQ_INIT(&cvs_ign_pats);
150:
1.46 jfb 151: if (((cvs_addedrev = rcsnum_alloc()) == NULL) ||
152: (rcsnum_aton("0", NULL, cvs_addedrev) < 0))
153: return (-1);
1.4 jfb 154:
1.1 jfb 155: /* standard patterns to ignore */
1.10 jfb 156: for (i = 0; i < (int)(sizeof(cvs_ign_std)/sizeof(char *)); i++)
1.26 jfb 157: cvs_file_ignore(cvs_ign_std[i]);
1.1 jfb 158:
159: /* read the cvsignore file in the user's home directory, if any */
160: pwd = getpwuid(getuid());
161: if (pwd != NULL) {
162: snprintf(path, sizeof(path), "%s/.cvsignore", pwd->pw_dir);
163: ifp = fopen(path, "r");
164: if (ifp == NULL) {
165: if (errno != ENOENT)
1.34 jfb 166: cvs_log(LP_ERRNO,
167: "failed to open user's cvsignore", path);
1.38 deraadt 168: } else {
1.1 jfb 169: while (fgets(buf, sizeof(buf), ifp) != NULL) {
170: len = strlen(buf);
171: if (len == 0)
172: continue;
173: if (buf[len - 1] != '\n') {
174: cvs_log(LP_ERR, "line too long in `%s'",
175: path);
176: }
177: buf[--len] = '\0';
178: cvs_file_ignore(buf);
179: }
180: (void)fclose(ifp);
181: }
182: }
183:
184: return (0);
185: }
186:
187:
188: /*
189: * cvs_file_ignore()
190: *
191: * Add the pattern <pat> to the list of patterns for files to ignore.
192: * Returns 0 on success, or -1 on failure.
193: */
194: int
195: cvs_file_ignore(const char *pat)
196: {
197: char *cp;
198: struct cvs_ignpat *ip;
199:
200: ip = (struct cvs_ignpat *)malloc(sizeof(*ip));
201: if (ip == NULL) {
202: cvs_log(LP_ERR, "failed to allocate space for ignore pattern");
203: return (-1);
204: }
205:
206: strlcpy(ip->ip_pat, pat, sizeof(ip->ip_pat));
207:
208: /* check if we will need globbing for that pattern */
209: ip->ip_flags = CVS_IGN_STATIC;
210: for (cp = ip->ip_pat; *cp != '\0'; cp++) {
211: if (CVS_CHAR_ISMETA(*cp)) {
212: ip->ip_flags &= ~CVS_IGN_STATIC;
213: break;
214: }
215: }
216:
217: TAILQ_INSERT_TAIL(&cvs_ign_pats, ip, ip_list);
218:
219: return (0);
220: }
221:
222:
223: /*
1.5 jfb 224: * cvs_file_chkign()
1.1 jfb 225: *
226: * Returns 1 if the filename <file> is matched by one of the ignore
227: * patterns, or 0 otherwise.
228: */
229: int
1.5 jfb 230: cvs_file_chkign(const char *file)
1.1 jfb 231: {
1.23 jfb 232: int flags;
1.1 jfb 233: struct cvs_ignpat *ip;
234:
1.23 jfb 235: flags = FNM_PERIOD;
236: if (cvs_nocase)
237: flags |= FNM_CASEFOLD;
238:
1.1 jfb 239: TAILQ_FOREACH(ip, &cvs_ign_pats, ip_list) {
240: if (ip->ip_flags & CVS_IGN_STATIC) {
1.23 jfb 241: if (cvs_file_cmpname(file, ip->ip_pat) == 0)
1.1 jfb 242: return (1);
1.38 deraadt 243: } else if (fnmatch(ip->ip_pat, file, flags) == 0)
1.1 jfb 244: return (1);
245: }
246:
247: return (0);
248: }
249:
250:
251: /*
1.6 jfb 252: * cvs_file_create()
1.1 jfb 253: *
1.6 jfb 254: * Create a new file whose path is specified in <path> and of type <type>.
1.26 jfb 255: * If the type is DT_DIR, the CVS administrative repository and files will be
256: * created.
1.25 jfb 257: * Returns the created file on success, or NULL on failure.
1.1 jfb 258: */
1.6 jfb 259: CVSFILE*
1.34 jfb 260: cvs_file_create(CVSFILE *parent, const char *path, u_int type, mode_t mode)
1.1 jfb 261: {
1.6 jfb 262: int fd;
1.34 jfb 263: char fp[MAXPATHLEN];
1.6 jfb 264: CVSFILE *cfp;
1.1 jfb 265:
1.6 jfb 266: cfp = cvs_file_alloc(path, type);
267: if (cfp == NULL)
268: return (NULL);
1.26 jfb 269:
1.22 jfb 270: cfp->cf_mode = mode;
1.34 jfb 271: cfp->cf_parent = parent;
1.1 jfb 272:
1.34 jfb 273: if (type == DT_DIR) {
274: cfp->cf_ddat->cd_root = cvsroot_get(path);
275: cfp->cf_ddat->cd_repo = strdup(cvs_file_getpath(cfp,
276: fp, sizeof(fp)));
277: if (cfp->cf_ddat->cd_repo == NULL) {
278: cvs_file_free(cfp);
279: return (NULL);
280: }
1.33 joris 281:
1.26 jfb 282: if ((mkdir(path, mode) == -1) || (cvs_mkadmin(cfp, mode) < 0)) {
1.6 jfb 283: cvs_file_free(cfp);
284: return (NULL);
285: }
1.26 jfb 286:
1.27 jfb 287: cfp->cf_ddat->cd_ent = cvs_ent_open(path, O_RDWR);
1.50 jfb 288: if (cfp->cf_ddat->cd_ent != NULL) {
289: cvs_ent_close(cfp->cf_ddat->cd_ent);
290: cfp->cf_ddat->cd_ent = NULL;
291: }
1.38 deraadt 292: } else {
1.6 jfb 293: fd = open(path, O_WRONLY|O_CREAT|O_EXCL, mode);
294: if (fd == -1) {
295: cvs_file_free(cfp);
1.1 jfb 296: return (NULL);
297: }
1.6 jfb 298: (void)close(fd);
1.1 jfb 299: }
300:
1.6 jfb 301: return (cfp);
1.3 jfb 302: }
303:
304:
305: /*
1.35 jfb 306: * cvs_file_copy()
307: *
308: * Allocate space to create a copy of the file <orig>. The copy inherits all
309: * of the original's attributes, but does not inherit its children if the
310: * original file is a directory. Note that files copied using this mechanism
311: * are linked to their parent, but the parent has no link to the file. This
312: * is so cvs_file_getpath() works.
313: * Returns the copied file on success, or NULL on failure. The returned
314: * structure should be freed using cvs_file_free().
315: */
316: CVSFILE*
317: cvs_file_copy(CVSFILE *orig)
318: {
319: char path[MAXPATHLEN];
320: CVSFILE *cfp;
321:
322: cvs_file_getpath(orig, path, sizeof(path));
323:
324: cfp = cvs_file_alloc(path, orig->cf_type);
325: if (cfp == NULL)
326: return (NULL);
327:
328: cfp->cf_parent = orig->cf_parent;
329: cfp->cf_mode = orig->cf_mode;
330: cfp->cf_mtime = orig->cf_mtime;
331: cfp->cf_cvstat = orig->cf_cvstat;
332:
333: if (orig->cf_type == DT_DIR) {
334: /* XXX copy CVS directory attributes */
335: }
336:
337: return (cfp);
338: }
339:
340:
341: /*
1.3 jfb 342: * cvs_file_get()
343: *
344: * Load a cvs_file structure with all the information pertaining to the file
345: * <path>.
1.4 jfb 346: * The <flags> parameter specifies various flags that alter the behaviour of
1.21 jfb 347: * the function. The CF_RECURSE flag causes the function to recursively load
348: * subdirectories when <path> is a directory.
349: * The CF_SORT flag causes the files to be sorted in alphabetical order upon
350: * loading. The special case of "." as a path specification generates
351: * recursion for a single level and is equivalent to calling cvs_file_get() on
352: * all files of that directory.
1.3 jfb 353: * Returns a pointer to the cvs file structure, which must later be freed
354: * with cvs_file_free().
355: */
356:
1.14 jfb 357: CVSFILE*
1.3 jfb 358: cvs_file_get(const char *path, int flags)
359: {
1.14 jfb 360: return cvs_file_lget(path, flags, NULL);
1.9 jfb 361: }
362:
363:
364: /*
365: * cvs_file_getspec()
366: *
367: * Load a specific set of files whose paths are given in the vector <fspec>,
368: * whose size is given in <fsn>.
369: * Returns a pointer to the lowest common subdirectory to all specified
370: * files.
371: */
372: CVSFILE*
373: cvs_file_getspec(char **fspec, int fsn, int flags)
374: {
1.26 jfb 375: int i;
376: char *sp, *np, pcopy[MAXPATHLEN];
377: CVSFILE *base, *cf, *nf;
378:
379: base = cvs_file_get(".", 0);
380: if (base == NULL)
381: return (NULL);
382:
383: for (i = 0; i < fsn; i++) {
384: strlcpy(pcopy, fspec[i], sizeof(pcopy));
385: cf = base;
386: sp = pcopy;
387:
388: do {
389: np = strchr(sp, '/');
390: if (np != NULL)
391: *np = '\0';
392: nf = cvs_file_find(cf, sp);
393: if (nf == NULL) {
394: nf = cvs_file_lget(pcopy, 0, cf);
395: if (nf == NULL) {
396: cvs_file_free(base);
397: return (NULL);
398: }
399:
400: cvs_file_attach(cf, nf);
401: }
402:
403: if (np != NULL) {
404: *np = '/';
405: sp = np + 1;
406: }
407:
408: cf = nf;
409: } while (np != NULL);
410: }
411:
412: return (base);
1.3 jfb 413: }
414:
415:
416: /*
1.13 jfb 417: * cvs_file_find()
418: *
419: * Find the pointer to a CVS file entry within the file hierarchy <hier>.
420: * The file's pathname <path> must be relative to the base of <hier>.
421: * Returns the entry on success, or NULL on failure.
422: */
423: CVSFILE*
424: cvs_file_find(CVSFILE *hier, const char *path)
425: {
426: char *pp, *sp, pbuf[MAXPATHLEN];
427: CVSFILE *sf, *cf;
428:
429: strlcpy(pbuf, path, sizeof(pbuf));
430:
431: cf = hier;
432: pp = pbuf;
433: do {
434: sp = strchr(pp, '/');
435: if (sp != NULL)
1.24 jfb 436: *(sp++) = '\0';
1.13 jfb 437:
438: /* special case */
439: if (*pp == '.') {
440: if ((*(pp + 1) == '.') && (*(pp + 2) == '\0')) {
441: /* request to go back to parent */
442: if (cf->cf_parent == NULL) {
443: cvs_log(LP_NOTICE,
444: "path %s goes back too far", path);
445: return (NULL);
446: }
447: cf = cf->cf_parent;
448: continue;
1.38 deraadt 449: } else if (*(pp + 1) == '\0')
1.13 jfb 450: continue;
451: }
452:
453: TAILQ_FOREACH(sf, &(cf->cf_ddat->cd_files), cf_list)
1.34 jfb 454: if (cvs_file_cmpname(pp, CVS_FILE_NAME(sf)) == 0)
1.13 jfb 455: break;
456: if (sf == NULL)
457: return (NULL);
458:
459: cf = sf;
460: pp = sp;
461: } while (sp != NULL);
462:
1.24 jfb 463: return (cf);
1.13 jfb 464: }
465:
466:
467: /*
1.34 jfb 468: * cvs_file_getpath()
469: *
470: * Get the full path of the file <file> and store it in <buf>, which is of
471: * size <len>. For portability, it is recommended that <buf> always be
472: * at least MAXPATHLEN bytes long.
473: * Returns a pointer to the start of the path on success, or NULL on failure.
474: */
475: char*
476: cvs_file_getpath(CVSFILE *file, char *buf, size_t len)
477: {
478: u_int i;
479: char *fp, *namevec[CVS_FILE_MAXDEPTH];
480: CVSFILE *top;
481:
482: buf[0] = '\0';
483: i = CVS_FILE_MAXDEPTH;
484: memset(namevec, 0, sizeof(namevec));
485:
486: /* find the top node */
487: for (top = file; (top != NULL) && (i > 0); top = top->cf_parent) {
488: fp = CVS_FILE_NAME(top);
489:
490: /* skip self-references */
491: if ((fp[0] == '.') && (fp[1] == '\0'))
492: continue;
493: namevec[--i] = fp;
494: }
495:
496: if (i == 0)
497: return (NULL);
498: else if (i == CVS_FILE_MAXDEPTH) {
499: strlcpy(buf, ".", len);
500: return (buf);
501: }
502:
503: while (i < CVS_FILE_MAXDEPTH - 1) {
504: strlcat(buf, namevec[i++], len);
505: strlcat(buf, "/", len);
506: }
507: strlcat(buf, namevec[i], len);
508:
509: return (buf);
510: }
511:
512:
513: /*
1.22 jfb 514: * cvs_file_attach()
515: *
516: * Attach the file <file> as one of the children of parent <parent>, which
517: * has to be a file of type DT_DIR.
518: * Returns 0 on success, or -1 on failure.
519: */
520: int
521: cvs_file_attach(CVSFILE *parent, CVSFILE *file)
522: {
1.23 jfb 523: struct cvs_dir *dp;
1.22 jfb 524:
525: if (parent->cf_type != DT_DIR)
526: return (-1);
527:
1.23 jfb 528: dp = parent->cf_ddat;
529:
530: TAILQ_INSERT_TAIL(&(dp->cd_files), file, cf_list);
531: dp->cd_nfiles++;
1.22 jfb 532: file->cf_parent = parent;
533:
534: return (0);
535: }
536:
537:
538: /*
1.3 jfb 539: * cvs_file_getdir()
540: *
541: * Get a cvs directory structure for the directory whose path is <dir>.
1.30 jfb 542: * This function should not free the directory information on error, as this
543: * is performed by cvs_file_free().
1.3 jfb 544: */
1.6 jfb 545: static int
1.14 jfb 546: cvs_file_getdir(CVSFILE *cf, int flags)
1.3 jfb 547: {
1.13 jfb 548: int ret, fd;
1.16 jfb 549: u_int ndirs;
1.3 jfb 550: long base;
1.43 jfb 551: u_char *dp, *ep;
1.34 jfb 552: char fbuf[2048], pbuf[MAXPATHLEN], fpath[MAXPATHLEN];
1.3 jfb 553: struct dirent *ent;
1.14 jfb 554: CVSFILE *cfp;
1.20 jfb 555: struct stat st;
1.3 jfb 556: struct cvs_dir *cdp;
1.44 jfb 557: struct cvs_ent *cvsent;
1.10 jfb 558: struct cvs_flist dirs;
1.3 jfb 559:
1.18 jfb 560: ndirs = 0;
1.10 jfb 561: TAILQ_INIT(&dirs);
1.7 jfb 562: cdp = cf->cf_ddat;
563:
1.34 jfb 564: cvs_file_getpath(cf, fpath, sizeof(fpath));
565:
1.48 jfb 566: cdp->cd_root = cvsroot_get(fpath);
567: if (cdp->cd_root == NULL)
568: return (-1);
569:
1.26 jfb 570: if (cf->cf_cvstat != CVS_FST_UNKNOWN) {
571: if (flags & CF_MKADMIN)
572: cvs_mkadmin(cf, 0755);
1.14 jfb 573:
1.26 jfb 574: /* if the CVS administrative directory exists, load the info */
1.34 jfb 575: snprintf(pbuf, sizeof(pbuf), "%s/" CVS_PATH_CVSDIR, fpath);
1.26 jfb 576: if ((stat(pbuf, &st) == 0) && S_ISDIR(st.st_mode)) {
1.34 jfb 577: if (cvs_readrepo(fpath, pbuf, sizeof(pbuf)) == 0) {
1.26 jfb 578: cdp->cd_repo = strdup(pbuf);
579: if (cdp->cd_repo == NULL) {
1.28 jfb 580: cvs_log(LP_ERRNO,
581: "failed to dup repository string");
1.26 jfb 582: return (-1);
583: }
1.20 jfb 584: }
1.26 jfb 585:
1.37 jfb 586: cdp->cd_ent = cvs_ent_open(fpath, O_RDONLY);
1.20 jfb 587: }
588: }
1.14 jfb 589:
1.48 jfb 590: if (!(flags & CF_RECURSE) ||
591: ((flags & CF_KNOWN) && (cf->cf_cvstat == CVS_FST_UNKNOWN)))
1.26 jfb 592: return (0);
593:
1.34 jfb 594: fd = open(fpath, O_RDONLY);
1.3 jfb 595: if (fd == -1) {
1.34 jfb 596: cvs_log(LP_ERRNO, "failed to open `%s'", fpath);
1.6 jfb 597: return (-1);
1.3 jfb 598: }
599:
1.44 jfb 600: /* To load all files, we first get the entries for the directory and
601: * load the information for each of those entries. The handle to
602: * the Entries file kept in the directory data is only temporary and
603: * the files should remove their entry when they use it. After all
604: * files in the directory have been processed, the Entries handle
605: * should only be left with those entries for which no real file
606: * exists. We then build file structures for those files too, as
607: * we will likely receive fresh copies from the server as part of the
608: * response.
609: */
1.11 jfb 610: do {
611: ret = getdirentries(fd, fbuf, sizeof(fbuf), &base);
612: if (ret == -1) {
613: cvs_log(LP_ERRNO, "failed to get directory entries");
614: (void)close(fd);
615: return (-1);
616: }
1.10 jfb 617:
1.11 jfb 618: dp = fbuf;
619: ep = fbuf + (size_t)ret;
620: while (dp < ep) {
621: ent = (struct dirent *)dp;
1.32 jfb 622: dp += ent->d_reclen;
1.31 jfb 623: if (ent->d_fileno == 0)
624: continue;
1.11 jfb 625:
626: if ((flags & CF_IGNORE) && cvs_file_chkign(ent->d_name))
1.24 jfb 627: continue;
628:
629: if ((flags & CF_NOSYMS) && (ent->d_type == DT_LNK))
1.11 jfb 630: continue;
631:
1.34 jfb 632: snprintf(pbuf, sizeof(pbuf), "%s/%s", fpath,
633: ent->d_name);
1.14 jfb 634: cfp = cvs_file_lget(pbuf, flags, cf);
1.11 jfb 635: if (cfp != NULL) {
1.26 jfb 636: if (cfp->cf_type == DT_DIR) {
637: TAILQ_INSERT_TAIL(&dirs, cfp, cf_list);
1.16 jfb 638: ndirs++;
1.38 deraadt 639: } else {
1.26 jfb 640: TAILQ_INSERT_TAIL(&(cdp->cd_files), cfp,
1.11 jfb 641: cf_list);
1.16 jfb 642: cdp->cd_nfiles++;
643: }
1.11 jfb 644: }
1.4 jfb 645: }
1.11 jfb 646: } while (ret > 0);
1.14 jfb 647:
1.40 jfb 648: if (cdp->cd_ent != NULL) {
1.44 jfb 649: /* now create file structure for files which have an
650: * entry in the Entries file but no file on disk
651: */
652: while ((cvsent = cvs_ent_next(cdp->cd_ent)) != NULL) {
653: snprintf(pbuf, sizeof(pbuf), "%s/%s", fpath,
654: cvsent->ce_name);
655: cfp = cvs_file_lget(pbuf, flags, cf);
656: if (cfp != NULL) {
657: if (cfp->cf_type == DT_DIR) {
658: TAILQ_INSERT_TAIL(&dirs, cfp, cf_list);
659: ndirs++;
660: } else {
661: TAILQ_INSERT_TAIL(&(cdp->cd_files), cfp,
662: cf_list);
663: cdp->cd_nfiles++;
664: }
665: }
666: }
1.40 jfb 667: cvs_ent_close(cdp->cd_ent);
668: cdp->cd_ent = NULL;
669: }
1.34 jfb 670:
1.10 jfb 671: if (flags & CF_SORT) {
1.16 jfb 672: cvs_file_sort(&(cdp->cd_files), cdp->cd_nfiles);
673: cvs_file_sort(&dirs, ndirs);
1.10 jfb 674: }
1.26 jfb 675:
676: while (!TAILQ_EMPTY(&dirs)) {
677: cfp = TAILQ_FIRST(&dirs);
678: TAILQ_REMOVE(&dirs, cfp, cf_list);
1.10 jfb 679: TAILQ_INSERT_TAIL(&(cdp->cd_files), cfp, cf_list);
1.26 jfb 680: }
1.16 jfb 681: cdp->cd_nfiles += ndirs;
1.3 jfb 682:
683: (void)close(fd);
684:
1.6 jfb 685: return (0);
1.3 jfb 686: }
687:
688:
689: /*
690: * cvs_file_free()
691: *
692: * Free a cvs_file structure and its contents.
693: */
694: void
1.14 jfb 695: cvs_file_free(CVSFILE *cf)
1.3 jfb 696: {
697: if (cf->cf_ddat != NULL)
698: cvs_file_freedir(cf->cf_ddat);
1.47 jfb 699: if (cf->cf_name != NULL)
700: cvs_file_freename(cf->cf_name);
1.3 jfb 701: free(cf);
1.5 jfb 702: }
703:
704:
705: /*
706: * cvs_file_examine()
707: *
708: * Examine the contents of the CVS file structure <cf> with the function
709: * <exam>. The function is called for all subdirectories and files of the
710: * root file.
711: */
712: int
713: cvs_file_examine(CVSFILE *cf, int (*exam)(CVSFILE *, void *), void *arg)
714: {
715: int ret;
1.14 jfb 716: CVSFILE *fp;
1.5 jfb 717:
718: if (cf->cf_type == DT_DIR) {
719: ret = (*exam)(cf, arg);
1.10 jfb 720: TAILQ_FOREACH(fp, &(cf->cf_ddat->cd_files), cf_list) {
1.5 jfb 721: ret = cvs_file_examine(fp, exam, arg);
722: if (ret == -1)
1.13 jfb 723: break;
1.5 jfb 724: }
1.38 deraadt 725: } else
1.13 jfb 726: ret = (*exam)(cf, arg);
727:
728: return (ret);
1.3 jfb 729: }
730:
731:
732: /*
733: * cvs_file_freedir()
734: *
735: * Free a cvs_dir structure and its contents.
736: */
737: static void
738: cvs_file_freedir(struct cvs_dir *cd)
739: {
1.14 jfb 740: CVSFILE *cfp;
1.3 jfb 741:
742: if (cd->cd_root != NULL)
743: cvsroot_free(cd->cd_root);
744: if (cd->cd_repo != NULL)
745: free(cd->cd_repo);
746:
1.14 jfb 747: if (cd->cd_ent != NULL)
748: cvs_ent_close(cd->cd_ent);
749:
1.10 jfb 750: while (!TAILQ_EMPTY(&(cd->cd_files))) {
751: cfp = TAILQ_FIRST(&(cd->cd_files));
752: TAILQ_REMOVE(&(cd->cd_files), cfp, cf_list);
1.3 jfb 753: cvs_file_free(cfp);
754: }
755: }
756:
757:
758: /*
759: * cvs_file_sort()
760: *
1.16 jfb 761: * Sort a list of cvs file structures according to their filename. The list
762: * <flp> is modified according to the sorting algorithm. The number of files
763: * in the list must be given by <nfiles>.
764: * Returns 0 on success, or -1 on failure.
1.3 jfb 765: */
766: static int
1.16 jfb 767: cvs_file_sort(struct cvs_flist *flp, u_int nfiles)
1.3 jfb 768: {
769: int i;
770: size_t nb;
1.16 jfb 771: CVSFILE *cf, **cfvec;
772:
773: cfvec = (CVSFILE **)calloc(nfiles, sizeof(CVSFILE *));
774: if (cfvec == NULL) {
775: cvs_log(LP_ERRNO, "failed to allocate sorting vector");
776: return (-1);
777: }
1.3 jfb 778:
779: i = 0;
1.10 jfb 780: TAILQ_FOREACH(cf, flp, cf_list) {
1.16 jfb 781: if (i == (int)nfiles) {
1.3 jfb 782: cvs_log(LP_WARN, "too many files to sort");
1.16 jfb 783: /* rebuild the list and abort sorting */
784: while (--i >= 0)
785: TAILQ_INSERT_HEAD(flp, cfvec[i], cf_list);
786: free(cfvec);
1.3 jfb 787: return (-1);
788: }
1.16 jfb 789: cfvec[i++] = cf;
1.3 jfb 790:
791: /* now unlink it from the list,
792: * we'll put it back in order later
793: */
1.10 jfb 794: TAILQ_REMOVE(flp, cf, cf_list);
1.3 jfb 795: }
796:
797: /* clear the list just in case */
1.10 jfb 798: TAILQ_INIT(flp);
1.3 jfb 799: nb = (size_t)i;
800:
801: heapsort(cfvec, nb, sizeof(cf), cvs_file_cmp);
802:
803: /* rebuild the list from the bottom up */
804: for (i = (int)nb - 1; i >= 0; i--)
1.10 jfb 805: TAILQ_INSERT_HEAD(flp, cfvec[i], cf_list);
1.3 jfb 806:
1.16 jfb 807: free(cfvec);
1.3 jfb 808: return (0);
809: }
810:
811:
812: static int
813: cvs_file_cmp(const void *f1, const void *f2)
814: {
1.41 jfb 815: const CVSFILE *cf1, *cf2;
816: cf1 = *(const CVSFILE **)f1;
817: cf2 = *(const CVSFILE **)f2;
1.34 jfb 818: return cvs_file_cmpname(CVS_FILE_NAME(cf1), CVS_FILE_NAME(cf2));
1.6 jfb 819: }
820:
821:
1.34 jfb 822: /*
823: * cvs_file_alloc()
824: *
825: * Allocate a CVSFILE structure and initialize its internals.
826: */
1.6 jfb 827: CVSFILE*
828: cvs_file_alloc(const char *path, u_int type)
829: {
830: CVSFILE *cfp;
831: struct cvs_dir *ddat;
832:
1.14 jfb 833: cfp = (CVSFILE *)malloc(sizeof(*cfp));
1.6 jfb 834: if (cfp == NULL) {
835: cvs_log(LP_ERRNO, "failed to allocate CVS file data");
836: return (NULL);
837: }
838: memset(cfp, 0, sizeof(*cfp));
839:
1.51 jfb 840: cfp->cf_name = cvs_file_getname(basename(path));
1.34 jfb 841: if (cfp->cf_name == NULL) {
1.35 jfb 842: cvs_log(LP_ERR, "failed to get file name from table");
1.6 jfb 843: return (NULL);
844: }
845: cfp->cf_type = type;
846: cfp->cf_cvstat = CVS_FST_UNKNOWN;
847:
848: if (type == DT_DIR) {
849: ddat = (struct cvs_dir *)malloc(sizeof(*ddat));
850: if (ddat == NULL) {
1.41 jfb 851: cvs_log(LP_ERRNO, "failed to allocate directory data");
1.6 jfb 852: cvs_file_free(cfp);
853: return (NULL);
854: }
855: memset(ddat, 0, sizeof(*ddat));
1.10 jfb 856: TAILQ_INIT(&(ddat->cd_files));
1.6 jfb 857: cfp->cf_ddat = ddat;
858: }
859: return (cfp);
1.1 jfb 860: }
1.14 jfb 861:
862:
863: /*
864: * cvs_file_lget()
865: *
866: * Get the file and link it with the parent right away.
1.22 jfb 867: * Returns a pointer to the created file structure on success, or NULL on
868: * failure.
1.14 jfb 869: */
870: static CVSFILE*
871: cvs_file_lget(const char *path, int flags, CVSFILE *parent)
872: {
1.44 jfb 873: int ret, cwd;
874: u_int type;
1.14 jfb 875: struct stat st;
876: CVSFILE *cfp;
1.34 jfb 877: struct cvs_ent *ent = NULL;
1.14 jfb 878:
1.44 jfb 879: type = DT_UNKNOWN;
880: cwd = (strcmp(path, ".") == 0) ? 1 : 0;
1.14 jfb 881:
1.44 jfb 882: ret = stat(path, &st);
883: if (ret == 0)
884: type = IFTODT(st.st_mode);
1.14 jfb 885:
1.44 jfb 886: if ((cfp = cvs_file_alloc(path, type)) == NULL)
1.14 jfb 887: return (NULL);
888: cfp->cf_parent = parent;
889:
1.44 jfb 890: if ((parent != NULL) && (CVS_DIR_ENTRIES(parent) != NULL))
1.34 jfb 891: ent = cvs_ent_get(CVS_DIR_ENTRIES(parent), CVS_FILE_NAME(cfp));
1.14 jfb 892:
1.44 jfb 893: if (ret == 0) {
894: cfp->cf_mode = st.st_mode & ACCESSPERMS;
895: cfp->cf_mtime = st.st_mtime;
896:
897: if (ent == NULL)
898: cfp->cf_cvstat = (cwd == 1) ?
899: CVS_FST_UPTODATE : CVS_FST_UNKNOWN;
1.14 jfb 900: else {
1.44 jfb 901: /* always show directories as up-to-date */
902: if (ent->ce_type == CVS_ENT_DIR)
1.14 jfb 903: cfp->cf_cvstat = CVS_FST_UPTODATE;
1.44 jfb 904: else if (rcsnum_cmp(ent->ce_rev, cvs_addedrev, 2) == 0)
905: cfp->cf_cvstat = CVS_FST_ADDED;
906: else {
907: /* check last modified time */
908: if (ent->ce_mtime >= (time_t)st.st_mtime)
909: cfp->cf_cvstat = CVS_FST_UPTODATE;
910: else
911: cfp->cf_cvstat = CVS_FST_MODIFIED;
912: }
1.14 jfb 913: }
1.44 jfb 914: } else {
915: if (ent == NULL) {
916: cvs_log(LP_ERR, "no Entry and no file for `%s'",
917: CVS_FILE_NAME(cfp));
918: cvs_file_free(cfp);
919: return (NULL);
920: } else
921: cfp->cf_cvstat = CVS_FST_LOST;
1.14 jfb 922: }
1.52 ! jfb 923:
! 924: if (ent != NULL)
! 925: cvs_ent_remove(CVS_DIR_ENTRIES(parent), CVS_FILE_NAME(cfp));
1.14 jfb 926:
1.26 jfb 927: if ((cfp->cf_type == DT_DIR) && (cvs_file_getdir(cfp, flags) < 0)) {
928: cvs_file_free(cfp);
929: return (NULL);
1.14 jfb 930: }
931:
932: return (cfp);
1.23 jfb 933: }
934:
935:
936: static int
937: cvs_file_cmpname(const char *name1, const char *name2)
938: {
939: return (cvs_nocase == 0) ? (strcmp(name1, name2)) :
940: (strcasecmp(name1, name2));
1.34 jfb 941: }
942:
943:
944: /*
945: * cvs_file_hashname()
946: *
947: * Generate an 8 bit hash value from the name of a file.
948: * XXX Improve my distribution!
949: */
950: static u_int8_t
951: cvs_file_hashname(const char *name)
952: {
953: const char *np;
954: u_int8_t h;
955:
956: h = 0xb5;
957: for (np = name; *np != '\0'; np++)
958: h ^= (*np << 3 ^ *np >> 1);
959:
960: return (h);
961: }
962:
963:
964: /*
965: * cvs_file_getname()
966: *
967: * Look for the file name <name> in the filename hash table.
968: * If no entry is found for that name, a new one is created and inserted into
969: * the table. The name's reference count is increased.
970: */
971: static struct cvs_fname*
972: cvs_file_getname(const char *name)
973: {
974: u_int8_t h;
975: struct cvs_fname *fnp;
976:
977: h = cvs_file_hashname(name);
978:
979: SLIST_FOREACH(fnp, &(cvs_fnht[h]), cf_list)
980: if (strcmp(name, fnp->cf_name) == 0) {
981: fnp->cf_ref++;
982: break;
983: }
984:
985: if (fnp == NULL) {
986: fnp = (struct cvs_fname *)malloc(sizeof(*fnp));
987: if (fnp == NULL) {
988: cvs_log(LP_ERRNO,
989: "failed to allocate new file name entry");
990: return (NULL);
991: }
992:
993: fnp->cf_name = strdup(name);
1.42 jfb 994: if (fnp->cf_name == NULL) {
995: cvs_log(LP_ERRNO, "failed to duplicate name");
996: free(fnp);
997: return (NULL);
998: }
999:
1.34 jfb 1000: fnp->cf_ref = 1;
1001: SLIST_INSERT_HEAD(&(cvs_fnht[h]), fnp, cf_list);
1002: }
1003:
1004: return (fnp);
1.47 jfb 1005: }
1006:
1007:
1008: /*
1009: * cvs_file_freename()
1010: *
1011: * Free the reference to a file name previously obtained with
1012: * cvs_file_getname().
1013: */
1014: static void
1015: cvs_file_freename(struct cvs_fname *fn)
1016: {
1017: u_int8_t h;
1018:
1019: if (fn->cf_ref == 0) {
1020: cvs_log(LP_WARN, "refcount for `%s' is already 0", fn->cf_name);
1021: return;
1022: }
1023:
1024: fn->cf_ref--;
1025: if (fn->cf_ref == 0) {
1026: /* no more references, free the file */
1027: h = cvs_file_hashname(fn->cf_name);
1028:
1029: SLIST_REMOVE(&(cvs_fnht[h]), fn, cvs_fname, cf_list);
1030: free(fn->cf_name);
1031: free(fn);
1032: }
1.14 jfb 1033: }
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