mirror of
https://github.com/pygos/init.git
synced 2024-11-23 03:29:47 +01:00
110 lines
2.3 KiB
C
110 lines
2.3 KiB
C
/* SPDX-License-Identifier: GPL-3.0-or-later */
|
|
/*
|
|
* Copyright (C) 2018 - David Oberhollenzer
|
|
*
|
|
* This program is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation, either version 3 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program 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 General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program. If not, see <https://www.gnu.org/licenses/>.
|
|
*/
|
|
#include <sys/types.h>
|
|
#include <sys/stat.h>
|
|
#include <stddef.h>
|
|
#include <dirent.h>
|
|
#include <string.h>
|
|
#include <errno.h>
|
|
#include <stdio.h>
|
|
#include <fcntl.h>
|
|
#include <ctype.h>
|
|
|
|
#include "service.h"
|
|
|
|
int svcscan(const char *directory, service_list_t *list, int flags)
|
|
{
|
|
int i, dfd, type, ret = 0;
|
|
struct dirent *ent;
|
|
const char *ptr;
|
|
service_t *svc;
|
|
struct stat sb;
|
|
DIR *dir;
|
|
|
|
for (i = 0; i < TGT_MAX; ++i)
|
|
list->targets[i] = NULL;
|
|
|
|
dir = opendir(directory);
|
|
if (dir == NULL) {
|
|
perror(directory);
|
|
return -1;
|
|
}
|
|
|
|
dfd = dirfd(dir);
|
|
if (dfd < 0) {
|
|
perror(directory);
|
|
closedir(dir);
|
|
return -1;
|
|
}
|
|
|
|
for (;;) {
|
|
errno = 0;
|
|
ent = readdir(dir);
|
|
|
|
if (ent == NULL) {
|
|
if (errno != 0) {
|
|
perror(directory);
|
|
ret = -1;
|
|
}
|
|
break;
|
|
}
|
|
|
|
for (ptr = ent->d_name; isalnum(*ptr) || *ptr == '_'; ++ptr)
|
|
;
|
|
|
|
if (*ptr != '\0' && *ptr != '@')
|
|
continue;
|
|
|
|
if (fstatat(dfd, ent->d_name, &sb, AT_SYMLINK_NOFOLLOW)) {
|
|
fprintf(stderr, "stat %s/%s: %s\n",
|
|
directory, ent->d_name, strerror(errno));
|
|
ret = -1;
|
|
continue;
|
|
}
|
|
|
|
type = (sb.st_mode & S_IFMT);
|
|
|
|
if (type != S_IFREG && type != S_IFLNK)
|
|
continue;
|
|
|
|
svc = rdsvc(dfd, ent->d_name, flags);
|
|
if (svc == NULL) {
|
|
ret = -1;
|
|
continue;
|
|
}
|
|
|
|
svc->next = list->targets[svc->target];
|
|
list->targets[svc->target] = svc;
|
|
}
|
|
|
|
for (i = 0; i < TGT_MAX; ++i) {
|
|
if (list->targets[i] == NULL)
|
|
continue;
|
|
|
|
errno = 0;
|
|
list->targets[i] = svc_tsort(list->targets[i]);
|
|
|
|
if (errno != 0) {
|
|
fprintf(stderr, "sorting services read from %s: %s\n",
|
|
directory, strerror(errno));
|
|
}
|
|
}
|
|
|
|
closedir(dir);
|
|
return ret;
|
|
}
|