Fix interactions between entries for a specific file vs entries for
a filename pattern, and also wrt filenames given on the command line. Now if a file is listed as a specific entry, it will not *also* be processed by an entry specifying a pattern. And filename-patterns will now only match existing files (ignoring directories, etc). MFC after: 3 weeks
This commit is contained in:
parent
be0ccb6800
commit
9ffd2d77ef
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=112020
@ -119,11 +119,14 @@ char daytime[16]; /* timenow in human readable form */
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static struct conf_entry *get_worklist(char **files);
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static void parse_file(FILE *cf, const char *cfname, struct conf_entry **work_p,
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struct conf_entry **defconf_p);
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struct conf_entry **glob_p, struct conf_entry **defconf_p);
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static char *sob(char *p);
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static char *son(char *p);
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static char *missing_field(char *p, char *errline);
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static void do_entry(struct conf_entry * ent);
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static void expand_globs(struct conf_entry **work_p,
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struct conf_entry **glob_p);
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static void free_clist(struct conf_entry **firstent);
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static void free_entry(struct conf_entry *ent);
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static struct conf_entry *init_entry(const char *fname,
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struct conf_entry *src_entry);
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@ -156,9 +159,6 @@ int
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main(int argc, char **argv)
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{
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struct conf_entry *p, *q;
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char *savglob;
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glob_t pglob;
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int i;
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parse_args(argc, argv);
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argc -= optind;
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@ -169,25 +169,7 @@ main(int argc, char **argv)
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p = q = get_worklist(argv);
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while (p) {
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if ((p->flags & CE_GLOB) == 0) {
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do_entry(p);
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} else {
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if (verbose > 2)
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printf("\t+ Processing pattern %s\n", p->log);
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if (glob(p->log, GLOB_NOCHECK, NULL, &pglob) != 0) {
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warn("can't expand pattern: %s", p->log);
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} else {
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savglob = p->log;
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for (i = 0; i < pglob.gl_matchc; i++) {
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p->log = pglob.gl_pathv[i];
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do_entry(p);
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}
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globfree(&pglob);
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p->log = savglob;
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if (verbose > 2)
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printf("\t+ Done with pattern\n");
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}
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}
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do_entry(p);
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p = p->next;
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free_entry(q);
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q = p;
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@ -277,6 +259,24 @@ free_entry(struct conf_entry *ent)
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free(ent);
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}
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static void
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free_clist(struct conf_entry **firstent)
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{
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struct conf_entry *ent, *nextent;
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if (firstent == NULL)
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return; /* There is nothing to do. */
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ent = *firstent;
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firstent = NULL;
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while (ent) {
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nextent = ent->next;
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free_entry(ent);
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ent = nextent;
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}
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}
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static void
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do_entry(struct conf_entry * ent)
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{
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@ -548,10 +548,10 @@ get_worklist(char **files)
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const char *fname;
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char **given;
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struct conf_entry *defconf, *dupent, *ent, *firstnew;
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struct conf_entry *newlist, *worklist;
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int gmatch;
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struct conf_entry *globlist, *lastnew, *worklist;
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int gmatch, fnres;
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defconf = worklist = NULL;
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defconf = globlist = worklist = NULL;
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fname = conf;
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if (fname == NULL)
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@ -566,15 +566,19 @@ get_worklist(char **files)
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if (!f)
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err(1, "%s", conf);
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parse_file(f, fname, &worklist, &defconf);
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parse_file(f, fname, &worklist, &globlist, &defconf);
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(void) fclose(f);
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/*
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* All config-file information has been read in and turned into
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* a worklist. If there were no specific files given on the run
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* command, then the work of this routine is done.
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* a worklist and a globlist. If there were no specific files
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* given on the run command, then the only thing left to do is to
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* call a routine which finds all files matched by the globlist
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* and adds them to the worklist. Then return the worklist.
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*/
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if (*files == NULL) {
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expand_globs(&worklist, &globlist);
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free_clist(&globlist);
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if (defconf != NULL)
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free_entry(defconf);
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return (worklist);
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@ -607,23 +611,21 @@ get_worklist(char **files)
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* we want to continue to allow it? If so, it should
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* probably be handled more intelligently.
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*/
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firstnew = newlist = NULL;
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firstnew = lastnew = NULL;
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for (given = files; *given; ++given) {
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gmatch = 0;
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/*
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* First try to find exact-matches for this given file.
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*/
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gmatch = 0;
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for (ent = worklist; ent; ent = ent->next) {
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if ((ent->flags & CE_GLOB) != 0)
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continue;
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if (strcmp(ent->log, *given) == 0) {
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gmatch++;
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dupent = init_entry(*given, ent);
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if (!firstnew)
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firstnew = dupent;
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else
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newlist->next = dupent;
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newlist = dupent;
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lastnew->next = dupent;
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lastnew = dupent;
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}
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}
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if (gmatch) {
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@ -636,18 +638,23 @@ get_worklist(char **files)
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* There was no exact-match for this given file, so look
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* for a "glob" entry which does match.
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*/
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for (ent = worklist; ent; ent = ent->next) {
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if ((ent->flags & CE_GLOB) == 0)
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continue;
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if (fnmatch(ent->log, *given, FNM_PATHNAME) == 0) {
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gmatch = 0;
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if (verbose > 2 && globlist != NULL)
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printf("\t+ Checking globs for %s\n", *given);
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for (ent = globlist; ent; ent = ent->next) {
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fnres = fnmatch(ent->log, *given, FNM_PATHNAME);
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if (verbose > 2)
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printf("\t+ = %d for pattern %s\n", fnres,
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ent->log);
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if (fnres == 0) {
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gmatch++;
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dupent = init_entry(*given, ent);
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if (!firstnew)
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firstnew = dupent;
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else
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newlist->next = dupent;
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newlist = dupent;
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/* This work entry is *not* a glob! */
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lastnew->next = dupent;
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lastnew = dupent;
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/* This new entry is not a glob! */
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dupent->flags &= ~CE_GLOB;
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/* Only allow a match to one glob-entry */
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break;
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@ -671,24 +678,116 @@ get_worklist(char **files)
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if (!firstnew)
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firstnew = dupent;
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else
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newlist->next = dupent;
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lastnew->next = dupent;
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/* Mark that it was *not* found in a config file */
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dupent->def_cfg = 1;
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newlist = dupent;
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lastnew = dupent;
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}
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/*
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* Free all the entries in the original work list, and then
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* return the new work list.
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* Free all the entries in the original work list, the list of
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* glob entries, and the default entry.
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*/
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while (worklist) {
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ent = worklist->next;
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free_entry(worklist);
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worklist = ent;
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free_clist(&worklist);
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free_clist(&globlist);
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free_entry(defconf);
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/* And finally, return a worklist which matches the given files. */
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return (firstnew);
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}
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/*
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* Expand the list of entries with filename patterns, and add all files
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* which match those glob-entries onto the worklist.
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*/
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static void
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expand_globs(struct conf_entry **work_p, struct conf_entry **glob_p)
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{
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int gmatch, gres, i;
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char *mfname;
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struct conf_entry *dupent, *ent, *firstmatch, *globent;
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struct conf_entry *lastmatch;
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glob_t pglob;
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struct stat st_fm;
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if ((glob_p == NULL) || (*glob_p == NULL))
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return; /* There is nothing to do. */
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/*
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* The worklist contains all fully-specified (non-GLOB) names.
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*
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* Now expand the list of filename-pattern (GLOB) entries into
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* a second list, which (by definition) will only match files
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* that already exist. Do not add a glob-related entry for any
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* file which already exists in the fully-specified list.
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*/
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firstmatch = lastmatch = NULL;
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for (globent = *glob_p; globent; globent = globent->next) {
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gres = glob(globent->log, GLOB_NOCHECK, NULL, &pglob);
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if (gres != 0) {
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warn("cannot expand pattern (%d): %s", gres,
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globent->log);
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continue;
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}
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if (verbose > 2)
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printf("\t+ Expanding pattern %s\n", globent->log);
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for (i = 0; i < pglob.gl_matchc; i++) {
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mfname = pglob.gl_pathv[i];
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/* See if this file already has a specific entry. */
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gmatch = 0;
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for (ent = *work_p; ent; ent = ent->next) {
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if (strcmp(mfname, ent->log) == 0) {
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gmatch++;
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break;
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}
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}
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if (gmatch)
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continue;
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/* Make sure the named matched is a file. */
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gres = lstat(mfname, &st_fm);
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if (gres != 0) {
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/* Error on a file that glob() matched?!? */
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warn("Skipping %s - lstat() error", mfname);
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continue;
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}
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if (!S_ISREG(st_fm.st_mode)) {
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/* We only rotate files! */
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if (verbose > 2)
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printf("\t+ . skipping %s (!file)\n",
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mfname);
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continue;
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}
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if (verbose > 2)
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printf("\t+ . add file %s\n", mfname);
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dupent = init_entry(mfname, globent);
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if (!firstmatch)
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firstmatch = dupent;
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else
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lastmatch->next = dupent;
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lastmatch = dupent;
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/* This new entry is not a glob! */
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dupent->flags &= ~CE_GLOB;
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}
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globfree(&pglob);
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if (verbose > 2)
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printf("\t+ Done with pattern %s\n", globent->log);
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}
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/* Add the list of matched files to the end of the worklist. */
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if (!*work_p)
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*work_p = firstmatch;
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else {
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ent = *work_p;
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while (ent->next)
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ent = ent->next;
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ent->next = firstmatch;
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}
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free_entry(defconf);
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return (firstnew);
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}
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/*
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@ -697,20 +796,20 @@ get_worklist(char **files)
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*/
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static void
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parse_file(FILE *cf, const char *cfname, struct conf_entry **work_p,
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struct conf_entry **defconf_p)
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struct conf_entry **glob_p, struct conf_entry **defconf_p)
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{
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char line[BUFSIZ], *parse, *q;
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char *cp, *errline, *group;
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struct conf_entry *working, *worklist;
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struct conf_entry *lastglob, *lastwork, *working;
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struct passwd *pwd;
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struct group *grp;
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int eol;
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int eol, special;
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/*
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* XXX - for now, assume that only one config file will be read,
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* ie, this routine is only called one time.
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*/
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worklist = NULL;
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lastglob = lastwork = NULL;
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while (fgets(line, BUFSIZ, cf)) {
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if ((line[0] == '\n') || (line[0] == '#') ||
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@ -736,8 +835,10 @@ parse_file(FILE *cf, const char *cfname, struct conf_entry **work_p,
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errline);
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*parse = '\0';
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special = 0;
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working = init_entry(q, NULL);
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if (strcasecmp(DEFAULT_MARKER, q) == 0) {
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special = 1;
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if (defconf_p == NULL) {
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warnx("Ignoring entry for %s in %s!", q,
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cfname);
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@ -749,12 +850,6 @@ parse_file(FILE *cf, const char *cfname, struct conf_entry **work_p,
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continue;
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}
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*defconf_p = working;
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} else {
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if (!*work_p)
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*work_p = working;
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else
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worklist->next = working;
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worklist = working;
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}
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q = parse = missing_field(sob(++parse), errline);
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@ -993,6 +1088,26 @@ parse_file(FILE *cf, const char *cfname, struct conf_entry **work_p,
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working->pid_file = strdup(_PATH_SYSLOGPID);
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}
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/*
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* Add this entry to the appropriate list of entries, unless
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* it was some kind of special entry (eg: <default>).
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*/
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if (special) {
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; /* Do not add to any list */
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} else if (working->flags & CE_GLOB) {
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if (!*glob_p)
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*glob_p = working;
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else
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lastglob->next = working;
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lastglob = working;
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} else {
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if (!*work_p)
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*work_p = working;
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else
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lastwork->next = working;
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lastwork = working;
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}
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free(errline);
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errline = NULL;
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}
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