4 * Copyright (C) 2005 Kay Sievers <kay.sievers@vrfy.org>
6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License as published by the
8 * Free Software Foundation version 2 of the License.
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * General Public License for more details.
15 * You should have received a copy of the GNU General Public License along
16 * with this program; if not, write to the Free Software Foundation, Inc.,
17 * 675 Mass Ave, Cambridge, MA 02139, USA.
21 #include <sys/types.h>
22 #include <sys/socket.h>
32 #include <linux/stddef.h>
35 #include "udev_version.h"
37 #include "udev_utils.h"
40 /* global variables */
42 static int udev_log = 0;
45 void log_message (int priority, const char *format, ...)
49 if (priority > udev_log)
52 va_start(args, format);
53 vsyslog(priority, format, args);
59 int main(int argc, char *argv[], char *envp[])
61 static struct udevd_msg usend_msg;
62 struct sockaddr_un saddr;
70 env = getenv("UDEV_LOG");
72 udev_log = log_priority(env);
74 logging_init("udevcontrol");
75 dbg("version %s", UDEV_VERSION);
78 fprintf(stderr, "missing command\n\n");
82 memset(&usend_msg, 0x00, sizeof(struct udevd_msg));
83 strcpy(usend_msg.magic, UDEV_MAGIC);
85 for (i = 1 ; i < argc; i++) {
88 if (!strcmp(arg, "stop_exec_queue"))
89 usend_msg.type = UDEVD_STOP_EXEC_QUEUE;
90 else if (!strcmp(arg, "start_exec_queue"))
91 usend_msg.type = UDEVD_START_EXEC_QUEUE;
92 else if (!strcmp(arg, "reload_rules"))
93 usend_msg.type = UDEVD_RELOAD_RULES;
94 else if (!strncmp(arg, "log_priority=", strlen("log_priority="))) {
95 intval = (int *) usend_msg.envbuf;
96 val = &arg[strlen("log_priority=")];
97 usend_msg.type = UDEVD_SET_LOG_LEVEL;
98 *intval = log_priority(val);
99 info("send log_priority=%i", *intval);
100 } else if (!strncmp(arg, "max_childs=", strlen("max_childs="))) {
101 intval = (int *) usend_msg.envbuf;
102 val = &arg[strlen("max_childs=")];
103 usend_msg.type = UDEVD_SET_MAX_CHILDS;
105 info("send max_childs=%i", *intval);
106 } else if (strcmp(arg, "help") == 0 || strcmp(arg, "--help") == 0 || strcmp(arg, "-h") == 0) {
107 printf("Usage: udevcontrol COMMAND\n"
108 " log_priority=<level> set the udev log level for the daemon\n"
109 " stop_exec_queue keep udevd from executing events, queue only\n"
110 " start_exec_queue execute events, flush queue\n"
111 " reload_rules reloads the rules files\n"
112 " max_childs=<N> maximum number of childs running at the same time\n"
113 " --help print this help text\n\n");
116 fprintf(stderr, "unknown option\n\n");
122 fprintf(stderr, "need to be root, exit\n\n");
126 sock = socket(AF_LOCAL, SOCK_DGRAM, 0);
128 err("error getting socket: %s", strerror(errno));
132 memset(&saddr, 0x00, sizeof(struct sockaddr_un));
133 saddr.sun_family = AF_LOCAL;
134 /* use abstract namespace for socket path */
135 strcpy(&saddr.sun_path[1], UDEVD_SOCK_PATH);
136 addrlen = offsetof(struct sockaddr_un, sun_path) + strlen(saddr.sun_path+1) + 1;
139 retval = sendto(sock, &usend_msg, sizeof(usend_msg), 0, (struct sockaddr *)&saddr, addrlen);
141 err("error sending message: %s", strerror(errno));
144 dbg("sent message type=0x%02x, %u bytes sent", usend_msg.type, retval);