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/*
* udev_utils.c - generic stuff used by udev
*
* Copyright (C) 2004-2005 Kay Sievers <kay.sievers@vrfy.org>
*
* 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 version 2 of the License.
*
* 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, write to the Free Software Foundation, Inc.,
* 675 Mass Ave, Cambridge, MA 02139, USA.
*
*/
#include <stdlib.h>
#include <stdio.h>
#include <stddef.h>
#include <unistd.h>
#include <fcntl.h>
#include <errno.h>
#include <ctype.h>
#include <dirent.h>
#include <syslog.h>
#include <sys/utsname.h>
#include "udev_libc_wrapper.h"
#include "udev.h"
#include "logging.h"
#include "udev_utils.h"
#include "list.h"
int log_priority(const char *priority)
{
char *endptr;
int prio;
prio = strtol(priority, &endptr, 10);
if (endptr[0] == '\0')
return prio;
if (strncasecmp(priority, "err", 3) == 0)
return LOG_ERR;
if (strcasecmp(priority, "info") == 0)
return LOG_INFO;
if (strcasecmp(priority, "debug") == 0)
return LOG_DEBUG;
if (string_is_true(priority))
return LOG_ERR;
return 0;
}
int kernel_release_satisfactory(unsigned int version, unsigned int patchlevel, unsigned int sublevel)
{
static unsigned int kversion = 0;
static unsigned int kpatchlevel;
static unsigned int ksublevel;
if (kversion == 0) {
struct utsname uts;
if (uname(&uts) != 0)
return -1;
if (sscanf (uts.release, "%u.%u.%u", &kversion, &kpatchlevel, &ksublevel) != 3) {
kversion = 0;
return -1;
}
}
if (kversion >= version && kpatchlevel >= patchlevel && ksublevel >= sublevel)
return 1;
else
return 0;
}
int name_list_add(struct list_head *name_list, const char *name, int sort)
{
struct name_entry *loop_name;
struct name_entry *new_name;
list_for_each_entry(loop_name, name_list, node) {
/* avoid doubles */
if (strcmp(loop_name->name, name) == 0) {
dbg("'%s' is already in the list", name);
return 0;
}
}
if (sort)
list_for_each_entry(loop_name, name_list, node) {
if (sort && strcmp(loop_name->name, name) > 0)
break;
}
new_name = malloc(sizeof(struct name_entry));
if (new_name == NULL) {
dbg("error malloc");
return -ENOMEM;
}
strlcpy(new_name->name, name, sizeof(new_name->name));
dbg("adding '%s'", new_name->name);
list_add_tail(&new_name->node, &loop_name->node);
return 0;
}
int name_list_key_add(struct list_head *name_list, const char *key, const char *value)
{
struct name_entry *loop_name;
struct name_entry *new_name;
list_for_each_entry(loop_name, name_list, node) {
if (strncmp(loop_name->name, key, strlen(key)) == 0) {
dbg("key already present '%s', replace it", loop_name->name);
snprintf(loop_name->name, sizeof(loop_name->name), "%s=%s", key, value);
loop_name->name[sizeof(loop_name->name)-1] = '\0';
return 0;
}
}
new_name = malloc(sizeof(struct name_entry));
if (new_name == NULL) {
dbg("error malloc");
return -ENOMEM;
}
snprintf(new_name->name, sizeof(new_name->name), "%s=%s", key, value);
new_name->name[sizeof(new_name->name)-1] = '\0';
dbg("adding '%s'", new_name->name);
list_add_tail(&new_name->node, &loop_name->node);
return 0;
}
void name_list_cleanup(struct list_head *name_list)
{
struct name_entry *name_loop;
struct name_entry *temp_loop;
list_for_each_entry_safe(name_loop, temp_loop, name_list, node) {
list_del(&name_loop->node);
free(name_loop);
}
}
/* calls function for every file found in specified directory */
int add_matching_files(struct list_head *name_list, const char *dirname, const char *suffix)
{
struct dirent *ent;
DIR *dir;
char *ext;
char filename[PATH_SIZE];
dbg("open directory '%s'", dirname);
dir = opendir(dirname);
if (dir == NULL) {
dbg("unable to open '%s'", dirname);
return -1;
}
while (1) {
ent = readdir(dir);
if (ent == NULL || ent->d_name[0] == '\0')
break;
if ((ent->d_name[0] == '.') || (ent->d_name[0] == COMMENT_CHARACTER))
continue;
/* look for file matching with specified suffix */
ext = strrchr(ent->d_name, '.');
if (ext == NULL)
continue;
if (strcmp(ext, suffix) != 0)
continue;
dbg("put file '%s/%s' in list", dirname, ent->d_name);
snprintf(filename, sizeof(filename), "%s/%s", dirname, ent->d_name);
filename[sizeof(filename)-1] = '\0';
name_list_add(name_list, filename, 1);
}
closedir(dir);
return 0;
}
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