mirror of
https://github.com/systemd/systemd.git
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118 lines
3.1 KiB
C
118 lines
3.1 KiB
C
/*-*- Mode: C; c-basic-offset: 8 -*-*/
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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 General Public License as published by
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the Free Software Foundation; either version 2 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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General Public License for more details.
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You should have received a copy of the GNU 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 <dirent.h>
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#include <errno.h>
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#include "unit.h"
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#include "load-dropin.h"
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#include "log.h"
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#include "strv.h"
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#include "unit-name.h"
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static int iterate_dir(Unit *u, const char *path) {
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DIR *d;
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struct dirent *de;
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int r;
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if (!(d = opendir(path))) {
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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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while ((de = readdir(d))) {
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char *f;
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if (ignore_file(de->d_name))
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continue;
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if (asprintf(&f, "%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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r = unit_add_dependency_by_name(u, UNIT_WANTS, de->d_name, f, true);
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free(f);
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if (r < 0)
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goto finish;
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}
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r = 0;
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finish:
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closedir(d);
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return r;
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}
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int unit_load_dropin(Unit *u) {
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Iterator i;
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int r;
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char *t;
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assert(u);
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/* Load dependencies from supplementary drop-in directories */
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SET_FOREACH(t, u->meta.names, i) {
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char *path;
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char **p;
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STRV_FOREACH(p, u->meta.manager->lookup_paths.unit_path) {
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if (asprintf(&path, "%s/%s.wants", *p, t) < 0)
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return -ENOMEM;
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r = iterate_dir(u, path);
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free(path);
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if (r < 0)
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return r;
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if (u->meta.instance) {
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char *template;
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/* Also try the template dir */
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if (!(template = unit_name_template(t)))
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return -ENOMEM;
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r = asprintf(&path, "%s/%s.wants", *p, template);
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free(template);
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if (r < 0)
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return -ENOMEM;
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r = iterate_dir(u, path);
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free(path);
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if (r < 0)
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return r;
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}
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}
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}
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return 0;
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}
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