+++ /dev/null
-/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
-
-/***
- This file is part of systemd.
-
- Copyright 2014 Zbigniew Jędrzejewski-Szmek
-
- systemd is free software; you can redistribute it and/or modify it
- under the terms of the GNU Lesser General Public License as published by
- the Free Software Foundation; either version 2.1 of the License, or
- (at your option) any later version.
-
- systemd is distributed in the hope that it will be useful, but
- WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public License
- along with systemd; If not, see <http://www.gnu.org/licenses/>.
-***/
-
-#include "dropin.h"
-#include "util.h"
-#include "strv.h"
-#include "mkdir.h"
-#include "fileio-label.h"
-#include "conf-files.h"
-
-int drop_in_file(const char *dir, const char *unit, unsigned level,
- const char *name, char **_p, char **_q) {
-
- _cleanup_free_ char *b = NULL;
- char *p, *q;
-
- char prefix[DECIMAL_STR_MAX(unsigned)];
-
- assert(unit);
- assert(name);
- assert(_p);
- assert(_q);
-
- sprintf(prefix, "%u", level);
-
- b = xescape(name, "/.");
- if (!b)
- return -ENOMEM;
-
- if (!filename_is_valid(b))
- return -EINVAL;
-
- p = strjoin(dir, "/", unit, ".d", NULL);
- if (!p)
- return -ENOMEM;
-
- q = strjoin(p, "/", prefix, "-", b, ".conf", NULL);
- if (!q) {
- free(p);
- return -ENOMEM;
- }
-
- *_p = p;
- *_q = q;
- return 0;
-}
-
-int write_drop_in(const char *dir, const char *unit, unsigned level,
- const char *name, const char *data) {
-
- _cleanup_free_ char *p = NULL, *q = NULL;
- int r;
-
- assert(dir);
- assert(unit);
- assert(name);
- assert(data);
-
- r = drop_in_file(dir, unit, level, name, &p, &q);
- if (r < 0)
- return r;
-
- mkdir_p(p, 0755);
- return write_string_file_atomic_label(q, data);
-}
-
-int write_drop_in_format(const char *dir, const char *unit, unsigned level,
- const char *name, const char *format, ...) {
- _cleanup_free_ char *p = NULL;
- va_list ap;
- int r;
-
- assert(dir);
- assert(unit);
- assert(name);
- assert(format);
-
- va_start(ap, format);
- r = vasprintf(&p, format, ap);
- va_end(ap);
-
- if (r < 0)
- return -ENOMEM;
-
- return write_drop_in(dir, unit, level, name, p);
-}
-
-static int iterate_dir(
- const char *path,
- UnitDependency dependency,
- dependency_consumer_t consumer,
- void *arg,
- char ***strv) {
-
- _cleanup_closedir_ DIR *d = NULL;
- int r;
-
- assert(path);
-
- /* The config directories are special, since the order of the
- * drop-ins matters */
- if (dependency < 0) {
- r = strv_extend(strv, path);
- if (r < 0)
- return log_oom();
-
- return 0;
- }
-
- assert(consumer);
-
- d = opendir(path);
- if (!d) {
- if (errno == ENOENT)
- return 0;
-
- log_error_errno(errno, "Failed to open directory %s: %m", path);
- return -errno;
- }
-
- for (;;) {
- struct dirent *de;
- _cleanup_free_ char *f = NULL;
-
- errno = 0;
- de = readdir(d);
- if (!de && errno != 0)
- return log_error_errno(errno, "Failed to read directory %s: %m", path);
-
- if (!de)
- break;
-
- if (hidden_file(de->d_name))
- continue;
-
- f = strjoin(path, "/", de->d_name, NULL);
- if (!f)
- return log_oom();
-
- r = consumer(dependency, de->d_name, f, arg);
- if (r < 0)
- return r;
- }
-
- return 0;
-}
-
-int unit_file_process_dir(
- Set *unit_path_cache,
- const char *unit_path,
- const char *name,
- const char *suffix,
- UnitDependency dependency,
- dependency_consumer_t consumer,
- void *arg,
- char ***strv) {
-
- _cleanup_free_ char *path = NULL;
- int r;
-
- assert(unit_path);
- assert(name);
- assert(suffix);
-
- path = strjoin(unit_path, "/", name, suffix, NULL);
- if (!path)
- return log_oom();
-
- if (!unit_path_cache || set_get(unit_path_cache, path))
- (void) iterate_dir(path, dependency, consumer, arg, strv);
-
- if (unit_name_is_valid(name, UNIT_NAME_INSTANCE)) {
- _cleanup_free_ char *template = NULL, *p = NULL;
- /* Also try the template dir */
-
- r = unit_name_template(name, &template);
- if (r < 0)
- return log_error_errno(r, "Failed to generate template from unit name: %m");
-
- p = strjoin(unit_path, "/", template, suffix, NULL);
- if (!p)
- return log_oom();
-
- if (!unit_path_cache || set_get(unit_path_cache, p))
- (void) iterate_dir(p, dependency, consumer, arg, strv);
- }
-
- return 0;
-}
-
-int unit_file_find_dropin_paths(
- char **lookup_path,
- Set *unit_path_cache,
- Set *names,
- char ***paths) {
-
- _cleanup_strv_free_ char **strv = NULL, **ans = NULL;
- Iterator i;
- char *t;
- int r;
-
- assert(paths);
-
- SET_FOREACH(t, names, i) {
- char **p;
-
- STRV_FOREACH(p, lookup_path)
- unit_file_process_dir(unit_path_cache, *p, t, ".d", _UNIT_DEPENDENCY_INVALID, NULL, NULL, &strv);
- }
-
- if (strv_isempty(strv))
- return 0;
-
- r = conf_files_list_strv(&ans, ".conf", NULL, (const char**) strv);
- if (r < 0)
- return log_warning_errno(r, "Failed to get list of configuration files: %m");
-
- *paths = ans;
- ans = NULL;
- return 1;
-}
~ianmdlvl / elogind.git / blobdiff