/* $OpenBSD: file.c,v 1.160 2006/06/14 20:28:53 joris Exp $ */ /* * Copyright (c) 2006 Joris Vink * Copyright (c) 2004 Jean-Francois Brousseau * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL * THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #include "includes.h" #include "cvs.h" #include "file.h" #include "log.h" #define CVS_IGN_STATIC 0x01 /* pattern is static, no need to glob */ #define CVS_CHAR_ISMETA(c) ((c == '*') || (c == '?') || (c == '[')) /* * Standard patterns to ignore. */ static const char *cvs_ign_std[] = { ".", "..", "*.o", "*.a", "*.bak", "*.orig", "*.rej", "*.old", "*.exe", "*.depend", "*.obj", "*.elc", "*.ln", "*.olb", "CVS", "core", "cvslog*", "*.core", ".#*", "*~", "_$*", "*$", }; struct ignore_head cvs_ign_pats; struct ignore_head dir_ign_pats; static int cvs_file_cmpname(const char *, const char *); void cvs_file_init(void) { int i, l; FILE *ifp; size_t len; char *path, *buf; path = xmalloc(MAXPATHLEN); buf = xmalloc(MAXNAMLEN); TAILQ_INIT(&cvs_ign_pats); TAILQ_INIT(&dir_ign_pats); /* standard patterns to ignore */ for (i = 0; i < (int)(sizeof(cvs_ign_std)/sizeof(char *)); i++) cvs_file_ignore(cvs_ign_std[i], &cvs_ign_pats); /* read the cvsignore file in the user's home directory, if any */ l = snprintf(path, MAXPATHLEN, "%s/.cvsignore", cvs_homedir); if (l == -1 || l >= MAXPATHLEN) fatal("overflow in cvs_file_init"); ifp = fopen(path, "r"); if (ifp == NULL) { if (errno != ENOENT) cvs_log(LP_ERRNO, "failed to open user's cvsignore file `%s'", path); } else { while (fgets(buf, MAXNAMLEN, ifp) != NULL) { len = strlen(buf); if (len == 0) continue; if (buf[len - 1] != '\n') cvs_log(LP_ERR, "line too long in `%s'", path); buf[--len] = '\0'; cvs_file_ignore(buf, &cvs_ign_pats); } (void)fclose(ifp); } xfree(path); xfree(buf); } void cvs_file_ignore(const char *pat, struct ignore_head *list) { char *cp; size_t len; struct cvs_ignpat *ip; ip = xmalloc(sizeof(*ip)); len = strlcpy(ip->ip_pat, pat, sizeof(ip->ip_pat)); if (len >= sizeof(ip->ip_pat)) fatal("cvs_file_ignore: truncation of pattern '%s'", pat); /* check if we will need globbing for that pattern */ ip->ip_flags = CVS_IGN_STATIC; for (cp = ip->ip_pat; *cp != '\0'; cp++) { if (CVS_CHAR_ISMETA(*cp)) { ip->ip_flags &= ~CVS_IGN_STATIC; break; } } TAILQ_INSERT_TAIL(list, ip, ip_list); } int cvs_file_chkign(const char *file) { int flags; struct cvs_ignpat *ip; flags = FNM_PERIOD; if (cvs_nocase) flags |= FNM_CASEFOLD; TAILQ_FOREACH(ip, &cvs_ign_pats, ip_list) { if (ip->ip_flags & CVS_IGN_STATIC) { if (cvs_file_cmpname(file, ip->ip_pat) == 0) return (1); } else if (fnmatch(ip->ip_pat, file, flags) == 0) return (1); } TAILQ_FOREACH(ip, &dir_ign_pats, ip_list) { if (ip->ip_flags & CVS_IGN_STATIC) { if (cvs_file_cmpname(file, ip->ip_pat) == 0) return (1); } else if (fnmatch(ip->ip_pat, file, flags) == 0) return (1); } return (0); } void cvs_file_run(int argc, char **argv, struct cvs_recursion *cr) { int i; struct cvs_flisthead fl; TAILQ_INIT(&fl); for (i = 0; i < argc; i++) cvs_file_get(argv[i], &fl); cvs_file_walklist(&fl, cr); cvs_file_freelist(&fl); } struct cvs_filelist * cvs_file_get(const char *name, struct cvs_flisthead *fl) { const char *p; struct cvs_filelist *l; for (p = name; p[0] == '.' && p[1] == '/';) p += 2; TAILQ_FOREACH(l, fl, flist) if (!strcmp(l->file_path, p)) return (l); l = (struct cvs_filelist *)xmalloc(sizeof(*l)); l->file_path = xstrdup(p); TAILQ_INSERT_TAIL(fl, l, flist); return (l); } struct cvs_file * cvs_file_get_cf(const char *d, const char *f, int fd, int type) { int l; struct cvs_file *cf; char *p, *rpath; rpath = xmalloc(MAXPATHLEN); l = snprintf(rpath, MAXPATHLEN, "%s/%s", d, f); if (l == -1 || l >= MAXPATHLEN) fatal("cvs_file_get_cf: overflow"); for (p = rpath; p[0] == '.' && p[1] == '/';) p += 2; cf = (struct cvs_file *)xmalloc(sizeof(*cf)); memset(cf, 0, sizeof(*cf)); cf->file_name = xstrdup(f); cf->file_wd = xstrdup(d); cf->file_path = xstrdup(p); cf->fd = fd; cf->repo_fd = -1; cf->file_type = type; cf->file_status = cf->file_flags = 0; cf->file_ent = NULL; xfree(rpath); return (cf); } void cvs_file_walklist(struct cvs_flisthead *fl, struct cvs_recursion *cr) { int len, fd, type; struct stat st; struct cvs_file *cf; struct cvs_filelist *l, *nxt; char *d, *f, *repo, *fpath; fpath = xmalloc(MAXPATHLEN); repo = xmalloc(MAXPATHLEN); for (l = TAILQ_FIRST(fl); l != NULL; l = nxt) { if (cvs_quit) fatal("received signal %d", sig_received); cvs_log(LP_TRACE, "cvs_file_walklist: element '%s'", l->file_path); if ((f = basename(l->file_path)) == NULL) fatal("cvs_file_walklist: basename failed"); if ((d = dirname(l->file_path)) == NULL) fatal("cvs_file_walklist: dirname failed"); type = CVS_FILE; if ((fd = open(l->file_path, O_RDONLY)) != -1) { if (fstat(fd, &st) == -1) { cvs_log(LP_ERRNO, "%s", l->file_path); (void)close(fd); goto next; } if (S_ISDIR(st.st_mode)) type = CVS_DIR; else if (S_ISREG(st.st_mode)) type = CVS_FILE; else { cvs_log(LP_ERR, "ignoring bad file type for %s", l->file_path); (void)close(fd); goto next; } } else { if (stat(d, &st) == -1) { cvs_log(LP_ERRNO, "%s", d); goto next; } cvs_get_repository_path(d, repo, MAXPATHLEN); len = snprintf(fpath, MAXPATHLEN, "%s/%s", repo, f); if (len == -1 || len >= MAXPATHLEN) fatal("cvs_file_walklist: overflow"); if ((fd = open(fpath, O_RDONLY)) == -1) { strlcat(fpath, RCS_FILE_EXT, MAXPATHLEN); fd = open(fpath, O_RDONLY); } if (fd != -1) { if (fstat(fd, &st) == -1) fatal("cvs_file_walklist: %s: %s", fpath, strerror(errno)); if (S_ISDIR(st.st_mode)) type = CVS_DIR; else if (S_ISREG(st.st_mode)) type = CVS_FILE; else { cvs_log(LP_ERR, "ignoring bad file type for %s", l->file_path); (void)close(fd); goto next; } /* this file is not in our working copy yet */ (void)close(fd); fd = -1; } } cf = cvs_file_get_cf(d, f, fd, type); if (cf->file_type == CVS_DIR) { cvs_file_walkdir(cf, cr); } else { if (cr->local != NULL) cr->local(cf); } cvs_file_free(cf); next: nxt = TAILQ_NEXT(l, flist); TAILQ_REMOVE(fl, l, flist); xfree(l->file_path); xfree(l); } xfree(fpath); xfree(repo); } void cvs_file_walkdir(struct cvs_file *cf, struct cvs_recursion *cr) { int l; FILE *fp; int nbytes; size_t len; long base; size_t bufsize; struct stat st; struct dirent *dp; struct cvs_ent *ent; struct cvs_ignpat *ip; struct cvs_ent_line *line; struct cvs_flisthead fl, dl; CVSENTRIES *entlist; char *buf, *ebuf, *cp, *repo, *fpath; cvs_log(LP_TRACE, "cvs_file_walkdir(%s)", cf->file_path); if (cr->enterdir != NULL) cr->enterdir(cf); if (cr->local != NULL) cr->local(cf); if (cf->file_status == FILE_SKIP) return; fpath = xmalloc(MAXPATHLEN); /* * If we do not have a admin directory inside here, dont bother, * unless we are running import. */ l = snprintf(fpath, MAXPATHLEN, "%s/%s", cf->file_path, CVS_PATH_CVSDIR); if (l == -1 || l >= MAXPATHLEN) fatal("cvs_file_walkdir: overflow"); l = stat(fpath, &st); if (cvs_cmdop != CVS_OP_IMPORT && (l == -1 || (l == 0 && !S_ISDIR(st.st_mode)))) { xfree(fpath); return; } /* * check for a local .cvsignore file */ l = snprintf(fpath, MAXPATHLEN, "%s/.cvsignore", cf->file_path); if (l == -1 || l >= MAXPATHLEN) fatal("cvs_file_walkdir: overflow"); if ((fp = fopen(fpath, "r")) != NULL) { while (fgets(fpath, MAXPATHLEN, fp)) { len = strlen(fpath); if (fpath[len - 1] == '\n') fpath[len - 1] = '\0'; cvs_file_ignore(fpath, &dir_ign_pats); } (void)fclose(fp); } if (fstat(cf->fd, &st) == -1) fatal("cvs_file_walkdir: %s %s", cf->file_path, strerror(errno)); bufsize = st.st_size; if (bufsize < st.st_blksize) bufsize = st.st_blksize; buf = xmalloc(bufsize); TAILQ_INIT(&fl); TAILQ_INIT(&dl); while ((nbytes = getdirentries(cf->fd, buf, bufsize, &base)) > 0) { ebuf = buf + nbytes; cp = buf; while (cp < ebuf) { dp = (struct dirent *)cp; if (!strcmp(dp->d_name, ".") || !strcmp(dp->d_name, "..") || !strcmp(dp->d_name, CVS_PATH_CVSDIR) || dp->d_reclen == 0) { cp += dp->d_reclen; continue; } if (cvs_file_chkign(dp->d_name)) { cp += dp->d_reclen; continue; } if (!(cr->flags & CR_RECURSE_DIRS) && dp->d_type == DT_DIR) { cp += dp->d_reclen; continue; } l = snprintf(fpath, MAXPATHLEN, "%s/%s", cf->file_path, dp->d_name); if (l == -1 || l >= MAXPATHLEN) fatal("cvs_file_walkdir: overflow"); /* * Anticipate the file type to sort them, * note that we do not determine the final * type until we actually have the fd floating * around. */ if (dp->d_type == DT_DIR) cvs_file_get(fpath, &dl); else if (dp->d_type == DT_REG) cvs_file_get(fpath, &fl); cp += dp->d_reclen; } } if (nbytes == -1) fatal("cvs_file_walkdir: %s %s", cf->file_path, strerror(errno)); xfree(buf); while ((ip = TAILQ_FIRST(&dir_ign_pats)) != NULL) { TAILQ_REMOVE(&dir_ign_pats, ip, ip_list); xfree(ip); } entlist = cvs_ent_open(cf->file_path); TAILQ_FOREACH(line, &(entlist->cef_ent), entries_list) { ent = cvs_ent_parse(line->buf); l = snprintf(fpath, MAXPATHLEN, "%s/%s", cf->file_path, ent->ce_name); if (l == -1 || l >= MAXPATHLEN) fatal("cvs_file_walkdir: overflow"); if (!(cr->flags & CR_RECURSE_DIRS) && ent->ce_type == CVS_ENT_DIR) continue; if (ent->ce_type == CVS_ENT_DIR) cvs_file_get(fpath, &dl); else if (ent->ce_type == CVS_ENT_FILE) cvs_file_get(fpath, &fl); cvs_ent_free(ent); } cvs_ent_close(entlist, ENT_NOSYNC); if (cr->flags & CR_REPO) { repo = xmalloc(MAXPATHLEN); cvs_get_repository_path(cf->file_path, repo, MAXPATHLEN); cvs_repository_lock(repo); cvs_repository_getdir(repo, cf->file_path, &fl, &dl, (cr->flags & CR_RECURSE_DIRS)); } cvs_file_walklist(&fl, cr); cvs_file_freelist(&fl); if (cr->flags & CR_REPO) { cvs_repository_unlock(repo); xfree(repo); } cvs_file_walklist(&dl, cr); cvs_file_freelist(&dl); xfree(fpath); if (cr->leavedir != NULL) cr->leavedir(cf); } void cvs_file_freelist(struct cvs_flisthead *fl) { struct cvs_filelist *f; while ((f = TAILQ_FIRST(fl)) != NULL) { TAILQ_REMOVE(fl, f, flist); xfree(f->file_path); xfree(f); } } void cvs_file_classify(struct cvs_file *cf, const char *tag, int loud) { size_t len; time_t mtime; struct stat st; BUF *b1, *b2; int rflags, l, ismodified, rcsdead, verbose; CVSENTRIES *entlist = NULL; const char *state; char *repo, *rcsfile, r1[16], r2[16]; cvs_log(LP_TRACE, "cvs_file_classify(%s)", cf->file_path); if (!strcmp(cf->file_path, ".")) { cf->file_status = FILE_UPTODATE; return; } verbose = (verbosity > 1 && loud == 1); repo = xmalloc(MAXPATHLEN); rcsfile = xmalloc(MAXPATHLEN); cvs_get_repository_path(cf->file_wd, repo, MAXPATHLEN); l = snprintf(rcsfile, MAXPATHLEN, "%s/%s", repo, cf->file_name); if (l == -1 || l >= MAXPATHLEN) fatal("cvs_file_classify: overflow"); if (cf->file_type == CVS_FILE) { len = strlcat(rcsfile, RCS_FILE_EXT, MAXPATHLEN); if (len >= MAXPATHLEN) fatal("cvs_file_classify: truncation"); } cf->file_rpath = xstrdup(rcsfile); entlist = cvs_ent_open(cf->file_wd); cf->file_ent = cvs_ent_get(entlist, cf->file_name); if (cf->file_ent != NULL) { if (cf->file_ent->ce_type == CVS_ENT_DIR && cf->file_type != CVS_DIR) fatal("%s is supposed to be a directory, but it is not", cf->file_path); if (cf->file_ent->ce_type == CVS_ENT_FILE && cf->file_type != CVS_FILE) fatal("%s is supposed to be a file, but it is not", cf->file_path); } if (cf->file_type == CVS_DIR) { if (cf->fd == -1 && stat(rcsfile, &st) != -1) cf->file_status = DIR_CREATE; else if (cf->file_ent != NULL) cf->file_status = FILE_UPTODATE; else cf->file_status = FILE_UNKNOWN; xfree(repo); xfree(rcsfile); cvs_ent_close(entlist, ENT_NOSYNC); return; } rflags = RCS_READ; switch (cvs_cmdop) { case CVS_OP_COMMIT: rflags = RCS_WRITE; break; case CVS_OP_IMPORT: case CVS_OP_LOG: rflags |= RCS_PARSE_FULLY; break; } cf->repo_fd = open(cf->file_rpath, O_RDONLY); if (cf->repo_fd != -1) { cf->file_rcs = rcs_open(cf->file_rpath, cf->repo_fd, rflags); if (cf->file_rcs == NULL) fatal("cvs_file_classify: failed to parse RCS"); cf->file_rcs->rf_inattic = 0; } else if (cvs_cmdop != CVS_OP_CHECKOUT) { l = snprintf(rcsfile, MAXPATHLEN, "%s/%s/%s%s", repo, CVS_PATH_ATTIC, cf->file_name, RCS_FILE_EXT); if (l == -1 || l >= MAXPATHLEN) fatal("cvs_file_classify: overflow"); cf->repo_fd = open(rcsfile, O_RDONLY); if (cf->repo_fd != -1) { xfree(cf->file_rpath); cf->file_rpath = xstrdup(rcsfile); cf->file_rcs = rcs_open(cf->file_rpath, cf->repo_fd, rflags); if (cf->file_rcs == NULL) fatal("cvs_file_classify: failed to parse RCS"); cf->file_rcs->rf_inattic = 1; } else { cf->file_rcs = NULL; } } else cf->file_rcs = NULL; if (tag != NULL && cf->file_rcs != NULL) cf->file_rcsrev = rcs_translate_tag(tag, cf->file_rcs); else if (cf->file_ent != NULL && cf->file_ent->ce_tag != NULL) cf->file_rcsrev = cf->file_ent->ce_rev; else if (cf->file_rcs != NULL) cf->file_rcsrev = rcs_head_get(cf->file_rcs); else cf->file_rcsrev = NULL; if (cf->file_ent != NULL) rcsnum_tostr(cf->file_ent->ce_rev, r1, sizeof(r1)); if (cf->file_rcsrev != NULL) rcsnum_tostr(cf->file_rcsrev, r2, sizeof(r2)); ismodified = rcsdead = 0; if (cf->fd != -1 && cf->file_ent != NULL) { if (fstat(cf->fd, &st) == -1) fatal("cvs_file_classify: %s", strerror(errno)); mtime = cvs_hack_time(st.st_mtime, 1); if (mtime != cf->file_ent->ce_mtime) ismodified = 1; } if (ismodified == 1 && cf->fd != -1 && cf->file_rcs != NULL) { b1 = rcs_getrev(cf->file_rcs, cf->file_rcsrev); if (b1 == NULL) fatal("failed to get HEAD revision for comparison"); b1 = rcs_kwexp_buf(b1, cf->file_rcs, cf->file_rcsrev); b2 = cvs_buf_load_fd(cf->fd, BUF_AUTOEXT); if (b2 == NULL) fatal("failed to get file content for comparison"); /* b1 and b2 get released in cvs_buf_differ */ if (cvs_buf_differ(b1, b2)) ismodified = 1; else ismodified = 0; } if (cf->file_rcs != NULL) { state = rcs_state_get(cf->file_rcs, cf->file_rcsrev); if (state == NULL) fatal("failed to get state for HEAD for %s", cf->file_path); if (!strcmp(state, RCS_STATE_DEAD)) rcsdead = 1; cf->file_rcs->rf_dead = rcsdead; } /* * 10 Sin * 20 Goto hell * (I welcome you if-else hell) */ if (cf->file_ent == NULL) { if (cf->file_rcs == NULL) { if (cf->fd == -1) { if (verbose) cvs_log(LP_NOTICE, "nothing known about '%s'", cf->file_path); } else { if (verbose) cvs_log(LP_NOTICE, "use add to create an entry for %s", cf->file_path); } cf->file_status = FILE_UNKNOWN; } else if (rcsdead == 1) { if (cf->fd == -1) { cf->file_status = FILE_UPTODATE; } else { if (verbose) cvs_log(LP_NOTICE, "use add to create an entry for %s", cf->file_path); cf->file_status = FILE_UNKNOWN; } } else { cf->file_status = FILE_CHECKOUT; } } else if (cf->file_ent->ce_status == CVS_ENT_ADDED) { if (cf->fd == -1) { if (verbose) cvs_log(LP_NOTICE, "warning: new-born %s has disappeared", cf->file_path); cf->file_status = FILE_REMOVE_ENTRY; } else if (cf->file_rcs == NULL || rcsdead == 1) { cf->file_status = FILE_ADDED; } else { if (verbose) cvs_log(LP_NOTICE, "conflict: %s already created by others", cf->file_path); cf->file_status = FILE_CONFLICT; } } else if (cf->file_ent->ce_status == CVS_ENT_REMOVED) { if (cf->fd != -1) { if (verbose) cvs_log(LP_NOTICE, "%s should be removed but is still there", cf->file_path); cf->file_status = FILE_REMOVED; } else if (cf->file_rcs == NULL || rcsdead == 1) { cf->file_status = FILE_REMOVE_ENTRY; } else { if (strcmp(r1, r2)) { if (verbose) cvs_log(LP_NOTICE, "conflict: removed %s was modified" " by a second party", cf->file_path); cf->file_status = FILE_CONFLICT; } else { cf->file_status = FILE_REMOVED; } } } else if (cf->file_ent->ce_status == CVS_ENT_REG) { if (cf->file_rcs == NULL || rcsdead == 1) { if (cf->fd == -1) { if (verbose) cvs_log(LP_NOTICE, "warning: %s's entry exists but" " there is no longer a file" " in the repository," " removing entry", cf->file_path); cf->file_status = FILE_REMOVE_ENTRY; } else { if (ismodified) { if (verbose) cvs_log(LP_NOTICE, "conflict: %s is no longer " "in the repository but is " "locally modified", cf->file_path); cf->file_status = FILE_CONFLICT; } else { if (verbose) cvs_log(LP_NOTICE, "%s is no longer in the " "repository", cf->file_path); cf->file_status = FILE_UNLINK; } } } else { if (cf->fd == -1) { if (verbose) cvs_log(LP_NOTICE, "warning: %s was lost", cf->file_path); cf->file_status = FILE_LOST; } else { if (ismodified == 1) cf->file_status = FILE_MODIFIED; else cf->file_status = FILE_UPTODATE; if (strcmp(r1, r2)) { if (cf->file_status == FILE_MODIFIED) cf->file_status = FILE_MERGE; else cf->file_status = FILE_PATCH; } } } } xfree(repo); xfree(rcsfile); cvs_ent_close(entlist, ENT_NOSYNC); } void cvs_file_free(struct cvs_file *cf) { xfree(cf->file_name); xfree(cf->file_wd); xfree(cf->file_path); if (cf->file_rpath != NULL) xfree(cf->file_rpath); if (cf->file_ent != NULL) cvs_ent_free(cf->file_ent); if (cf->file_rcs != NULL) rcs_close(cf->file_rcs); if (cf->fd != -1) (void)close(cf->fd); if (cf->repo_fd != -1) (void)close(cf->repo_fd); xfree(cf); } static int cvs_file_cmpname(const char *name1, const char *name2) { return (cvs_nocase == 0) ? (strcmp(name1, name2)) : (strcasecmp(name1, name2)); }