578ac0604e
A problem with systemd-tmpfiles has been observed where the service failed just because one of the configuration directories could not be read due to SELinux policy. Complain about the failure, but try to go on. https://bugzilla.redhat.com/show_bug.cgi?id=839736
153 lines
3.9 KiB
C
153 lines
3.9 KiB
C
/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
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/***
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This file is part of systemd.
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Copyright 2010 Lennart Poettering
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systemd is free software; you can redistribute it and/or modify it
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under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version.
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systemd is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with systemd; If not, see <http://www.gnu.org/licenses/>.
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***/
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#include <assert.h>
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#include <string.h>
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#include <unistd.h>
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#include <errno.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <sys/stat.h>
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#include <dirent.h>
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#include "macro.h"
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#include "util.h"
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#include "missing.h"
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#include "log.h"
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#include "strv.h"
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#include "path-util.h"
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#include "hashmap.h"
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#include "conf-files.h"
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static int files_add(Hashmap *h, const char *path, const char *suffix) {
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DIR *dir;
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struct dirent buffer, *de;
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int r = 0;
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dir = opendir(path);
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if (!dir) {
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if (errno == ENOENT)
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return 0;
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return -errno;
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}
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for (;;) {
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int k;
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char *p;
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k = readdir_r(dir, &buffer, &de);
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if (k != 0) {
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r = -k;
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goto finish;
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}
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if (!de)
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break;
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if (!dirent_is_file_with_suffix(de, suffix))
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continue;
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if (asprintf(&p, "%s/%s", path, de->d_name) < 0) {
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r = -ENOMEM;
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goto finish;
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}
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if (hashmap_put(h, path_get_file_name(p), p) <= 0) {
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log_debug("Skip overridden file: %s.", p);
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free(p);
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}
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}
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finish:
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closedir(dir);
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return r;
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}
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static int base_cmp(const void *a, const void *b) {
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const char *s1, *s2;
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s1 = *(char * const *)a;
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s2 = *(char * const *)b;
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return strcmp(path_get_file_name(s1), path_get_file_name(s2));
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}
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int conf_files_list_strv(char ***strv, const char *suffix, const char **dirs) {
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Hashmap *fh = NULL;
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char **files = NULL;
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const char **p;
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int r;
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assert(dirs);
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fh = hashmap_new(string_hash_func, string_compare_func);
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if (!fh) {
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r = -ENOMEM;
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goto finish;
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}
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STRV_FOREACH(p, dirs) {
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r = files_add(fh, *p, suffix);
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if (r < 0)
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log_warning("Failed to search for files in %s: %s",
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*p, strerror(-r));
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}
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files = hashmap_get_strv(fh);
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if (files == NULL) {
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log_error("Failed to compose list of files.");
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r = -ENOMEM;
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goto finish;
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}
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qsort(files, hashmap_size(fh), sizeof(char *), base_cmp);
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r = 0;
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finish:
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hashmap_free(fh);
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*strv = files;
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return r;
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}
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int conf_files_list(char ***strv, const char *suffix, const char *dir, ...) {
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char **dirs = NULL;
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va_list ap;
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int r;
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va_start(ap, dir);
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dirs = strv_new_ap(dir, ap);
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va_end(ap);
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if (!dirs) {
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r = -ENOMEM;
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goto finish;
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}
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if (!path_strv_canonicalize(dirs)) {
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r = -ENOMEM;
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goto finish;
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}
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strv_uniq(dirs);
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r = conf_files_list_strv(strv, suffix, (const char **)dirs);
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finish:
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strv_free(dirs);
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return r;
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}
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