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systemd/extras/run_directory/run_directory.c
Kay Sievers 6a522681e1 udev: move dev.d/ handling to external helper
Modern rules are expected to call notification and postprocessing with    
the RUN key. For compatibility the current behavior can be emulated
with an external helper.

Signed-off-by: Kay Sievers <kay.sievers@suse.de>
2005-06-05 05:11:29 +02:00

80 lines
1.8 KiB
C

/*
* udev_run_directory.c - directory multiplexer
*
* Copyright (C) 2005 Kay Sievers <kay@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.
*
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stddef.h>
#include <dirent.h>
#include <errno.h>
#include <unistd.h>
#include <fcntl.h>
#include <limits.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <sys/stat.h>
#include "../../udev_utils.h"
#include "../../list.h"
#include "../../logging.h"
int run_directory(const char *dir, const char *suffix, const char *subsystem);
static int run_program(const char *filename, const char *subsystem)
{
pid_t pid;
dbg("running %s", filename);
pid = fork();
switch (pid) {
case 0:
/* child */
execl(filename, filename, subsystem, NULL);
dbg("exec of child failed");
_exit(1);
case -1:
dbg("fork of child failed");
break;
return -1;
default:
waitpid(pid, NULL, 0);
}
return 0;
}
int run_directory(const char *dir, const char *suffix, const char *subsystem)
{
char dirname[NAME_SIZE];
struct name_entry *name_loop, *name_tmp;
LIST_HEAD(name_list);
if (subsystem) {
snprintf(dirname, sizeof(dirname), "%s/%s", dir, subsystem);
dirname[sizeof(dirname)-1] = '\0';
dbg("looking at '%s'", dirname);
add_matching_files(&name_list, dirname, suffix);
}
snprintf(dirname, sizeof(dirname), "%s/default", dir);
dirname[sizeof(dirname)-1] = '\0';
dbg("looking at '%s'", dirname);
add_matching_files(&name_list, dirname, suffix);
list_for_each_entry_safe(name_loop, name_tmp, &name_list, node) {
run_program(name_loop->name, subsystem);
list_del(&name_loop->node);
}
logging_close();
return 0;
}