1 /* notmuch - Not much of an email program, (just index and search)
3 * This file is part of notmuch.
5 * Copyright © 2011 Jani Nikula
7 * This program is free software: you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation, either version 3 of the License, or
10 * (at your option) any later version.
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with this program. If not, see https://www.gnu.org/licenses/ .
20 * Author: Jani Nikula <jani@nikula.org>
23 #include "notmuch-client.h"
27 notmuch_run_hook (notmuch_database_t *notmuch, const char *hook)
30 const char *config_path;
34 hook_path = talloc_asprintf (notmuch, "%s/%s",
35 notmuch_config_get (notmuch, NOTMUCH_CONFIG_HOOK_DIR),
37 if (hook_path == NULL) {
38 fprintf (stderr, "Out of memory\n");
42 config_path = notmuch_config_path (notmuch);
43 if (setenv ("NOTMUCH_CONFIG", config_path, 1)) {
48 /* Check access before fork() for speed and simplicity of error handling. */
49 if (access (hook_path, X_OK) == -1) {
50 /* Ignore ENOENT. It's okay not to have a hook, hook dir, or even
51 * notmuch dir. Dangling symbolic links also result in ENOENT, but
52 * we'll ignore that too for simplicity. */
53 if (errno != ENOENT) {
54 fprintf (stderr, "Error: %s hook access failed: %s\n", hook,
61 /* Flush any buffered output before forking. */
66 fprintf (stderr, "Error: %s hook fork failed: %s\n", hook,
70 } else if (pid == 0) {
71 execl (hook_path, hook_path, NULL);
72 /* Same as above for ENOENT, but unlikely now. Indicate all other errors
73 * to parent through non-zero exit status. */
74 if (errno != ENOENT) {
75 fprintf (stderr, "Error: %s hook execution failed: %s\n", hook,
82 if (waitpid (pid, &status, 0) == -1) {
83 fprintf (stderr, "Error: %s hook wait failed: %s\n", hook,
89 if (! WIFEXITED (status) || WEXITSTATUS (status)) {
90 if (WIFEXITED (status)) {
91 fprintf (stderr, "Error: %s hook failed with status %d\n",
92 hook, WEXITSTATUS (status));
93 } else if (WIFSIGNALED (status)) {
94 fprintf (stderr, "Error: %s hook terminated with signal %d\n",
95 hook, WTERMSIG (status));
101 talloc_free (hook_path);