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3b47c739 KS |
1 | /* |
2 | * udevcontrol.c | |
3 | * | |
4 | * Userspace devfs | |
5 | * | |
6 | * Copyright (C) 2005 Kay Sievers <kay.sievers@vrfy.org> | |
7 | * | |
8 | * | |
9 | * This program is free software; you can redistribute it and/or modify it | |
10 | * under the terms of the GNU General Public License as published by the | |
11 | * Free Software Foundation version 2 of the License. | |
12 | * | |
13 | * This program is distributed in the hope that it will be useful, but | |
14 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
16 | * General Public License for more details. | |
17 | * | |
18 | * You should have received a copy of the GNU General Public License along | |
19 | * with this program; if not, write to the Free Software Foundation, Inc., | |
20 | * 675 Mass Ave, Cambridge, MA 02139, USA. | |
21 | * | |
22 | */ | |
23 | ||
24 | #include <sys/types.h> | |
25 | #include <sys/socket.h> | |
26 | #include <sys/wait.h> | |
27 | #include <sys/un.h> | |
28 | #include <time.h> | |
29 | #include <errno.h> | |
30 | #include <stdio.h> | |
31 | #include <stdlib.h> | |
32 | #include <stddef.h> | |
33 | #include <string.h> | |
34 | #include <unistd.h> | |
35 | #include <linux/stddef.h> | |
36 | ||
37 | #include "udev.h" | |
38 | #include "udev_version.h" | |
39 | #include "udevd.h" | |
40 | #include "logging.h" | |
41 | ||
42 | /* global variables */ | |
43 | static int sock = -1; | |
44 | ||
45 | #ifdef USE_LOG | |
46 | void log_message (int level, const char *format, ...) | |
47 | { | |
48 | va_list args; | |
49 | ||
50 | va_start(args, format); | |
51 | vsyslog(level, format, args); | |
52 | va_end(args); | |
53 | } | |
54 | #endif | |
55 | ||
56 | ||
57 | int main(int argc, char *argv[], char *envp[]) | |
58 | { | |
59 | static struct udevd_msg usend_msg; | |
60 | struct sockaddr_un saddr; | |
61 | socklen_t addrlen; | |
62 | int retval = 1; | |
63 | ||
64 | logging_init("udevcontrol"); | |
65 | dbg("version %s", UDEV_VERSION); | |
66 | ||
67 | if (argc != 2) { | |
68 | info("usage: udevcontrol <cmd>\n"); | |
69 | goto exit; | |
70 | } | |
71 | ||
72 | memset(&usend_msg, 0x00, sizeof(struct udevd_msg)); | |
73 | strcpy(usend_msg.magic, UDEV_MAGIC); | |
74 | ||
75 | if (strstr(argv[1], "stop_exec_queue")) | |
76 | usend_msg.type = UDEVD_STOP_EXEC_QUEUE; | |
77 | else if (strstr(argv[1], "start_exec_queue")) | |
78 | usend_msg.type = UDEVD_START_EXEC_QUEUE; | |
79 | else { | |
80 | info("unknown command\n"); | |
81 | goto exit; | |
82 | } | |
83 | ||
84 | sock = socket(AF_LOCAL, SOCK_DGRAM, 0); | |
85 | if (sock == -1) { | |
86 | info("error getting socket"); | |
87 | goto exit; | |
88 | } | |
89 | ||
90 | memset(&saddr, 0x00, sizeof(struct sockaddr_un)); | |
91 | saddr.sun_family = AF_LOCAL; | |
92 | /* use abstract namespace for socket path */ | |
93 | strcpy(&saddr.sun_path[1], UDEVD_SOCK_PATH); | |
94 | addrlen = offsetof(struct sockaddr_un, sun_path) + strlen(saddr.sun_path+1) + 1; | |
95 | ||
96 | ||
97 | retval = sendto(sock, &usend_msg, sizeof(usend_msg), 0, (struct sockaddr *)&saddr, addrlen); | |
60d7b201 | 98 | if (retval == -1) { |
3b47c739 | 99 | info("error sending message (%s)", strerror(errno)); |
60d7b201 HR |
100 | retval = 1; |
101 | } else { | |
102 | dbg("sent message '%x' (%u bytes sent)\n", usend_msg.type, retval); | |
103 | retval = 0; | |
104 | } | |
3b47c739 KS |
105 | |
106 | close(sock); | |
107 | ||
108 | exit: | |
109 | logging_close(); | |
110 | ||
111 | return retval; | |
112 | } |