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/*
* udevcontrol.c
*
* Userspace devfs
*
* Copyright (C) 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 <sys/types.h>
#include <sys/socket.h>
#include <sys/wait.h>
#include <sys/un.h>
#include <time.h>
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <stddef.h>
#include <string.h>
#include <unistd.h>
#include <linux/stddef.h>
#include "udev.h"
#include "udev_version.h"
#include "udevd.h"
#include "logging.h"
/* global variables */
static int sock = -1;
#ifdef USE_LOG
void log_message (int level, const char *format, ...)
{
va_list args;
va_start(args, format);
vsyslog(level, format, args);
va_end(args);
}
#endif
int main(int argc, char *argv[], char *envp[])
{
static struct udevd_msg usend_msg;
struct sockaddr_un saddr;
socklen_t addrlen;
int retval = 1;
logging_init("udevcontrol");
dbg("version %s", UDEV_VERSION);
if (argc != 2) {
info("usage: udevcontrol <cmd>\n");
goto exit;
}
memset(&usend_msg, 0x00, sizeof(struct udevd_msg));
strcpy(usend_msg.magic, UDEV_MAGIC);
if (strstr(argv[1], "stop_exec_queue"))
usend_msg.type = UDEVD_STOP_EXEC_QUEUE;
else if (strstr(argv[1], "start_exec_queue"))
usend_msg.type = UDEVD_START_EXEC_QUEUE;
else {
info("unknown command\n");
goto exit;
}
sock = socket(AF_LOCAL, SOCK_DGRAM, 0);
if (sock == -1) {
info("error getting socket");
goto exit;
}
memset(&saddr, 0x00, sizeof(struct sockaddr_un));
saddr.sun_family = AF_LOCAL;
/* use abstract namespace for socket path */
strcpy(&saddr.sun_path[1], UDEVD_SOCK_PATH);
addrlen = offsetof(struct sockaddr_un, sun_path) + strlen(saddr.sun_path+1) + 1;
retval = sendto(sock, &usend_msg, sizeof(usend_msg), 0, (struct sockaddr *)&saddr, addrlen);
if (retval == -1) {
info("error sending message (%s)", strerror(errno));
retval = 1;
} else {
dbg("sent message '%x' (%u bytes sent)\n", usend_msg.type, retval);
retval = 0;
}
close(sock);
exit:
logging_close();
return retval;
}
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