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bb051f66 GKH |
1 | /* |
2 | * udev.c | |
3 | * | |
4 | * Userspace devfs | |
5 | * | |
6 | * Copyright (C) 2003,2004 Greg Kroah-Hartman <greg@kroah.com> | |
7 | * | |
8 | * This program is free software; you can redistribute it and/or modify it | |
9 | * under the terms of the GNU General Public License as published by the | |
10 | * Free Software Foundation version 2 of the License. | |
11 | * | |
12 | * This program is distributed in the hope that it will be useful, but | |
13 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
15 | * General Public License for more details. | |
16 | * | |
17 | * You should have received a copy of the GNU General Public License along | |
18 | * with this program; if not, write to the Free Software Foundation, Inc., | |
19 | * 675 Mass Ave, Cambridge, MA 02139, USA. | |
20 | * | |
21 | */ | |
22 | ||
23 | #include <stdlib.h> | |
24 | #include <string.h> | |
25 | #include <stdio.h> | |
26 | #include <errno.h> | |
27 | #include <ctype.h> | |
28 | #include <signal.h> | |
29 | ||
c80da508 | 30 | #include "libsysfs/sysfs/libsysfs.h" |
bb051f66 | 31 | #include "udev.h" |
d7190b05 | 32 | #include "udev_sysfs.h" |
9af5bb2f | 33 | #include "udev_utils.h" |
bb051f66 | 34 | #include "udev_version.h" |
bb051f66 | 35 | #include "namedev.h" |
02fa9ae5 | 36 | #include "logging.h" |
bb051f66 | 37 | |
8a0acf85 | 38 | |
bb051f66 | 39 | #ifdef LOG |
bb051f66 GKH |
40 | void log_message (int level, const char *format, ...) |
41 | { | |
d00bd172 | 42 | va_list args; |
bb051f66 | 43 | |
bb051f66 | 44 | va_start(args, format); |
eb10f97f | 45 | vprintf(format, args); |
bb051f66 | 46 | va_end(args); |
eb10f97f GKH |
47 | if (format[strlen(format)-1] != '\n') |
48 | printf("\n"); | |
bb051f66 GKH |
49 | } |
50 | #endif | |
51 | ||
8a0acf85 | 52 | int main(int argc, char *argv[], char *envp[]) |
bb051f66 | 53 | { |
7a947ce5 | 54 | struct sysfs_class_device *class_dev; |
bb051f66 | 55 | char *devpath; |
7a947ce5 | 56 | char path[SYSFS_PATH_MAX]; |
8a0acf85 | 57 | char temp[NAME_SIZE]; |
7a947ce5 | 58 | struct udevice udev; |
a0294b76 | 59 | char *subsystem = NULL; |
8a0acf85 | 60 | |
8a0acf85 | 61 | info("version %s", UDEV_VERSION); |
bb051f66 | 62 | |
a0294b76 KS |
63 | if (argc < 2 || argc > 3) { |
64 | info("Usage: udevtest <devpath> [subsystem]"); | |
5d24c6ca | 65 | return 1; |
bb051f66 | 66 | } |
8a0acf85 | 67 | |
a0294b76 KS |
68 | /* initialize our configuration */ |
69 | udev_init_config(); | |
70 | ||
8a0acf85 | 71 | /* remove sysfs_path if given */ |
a0294b76 KS |
72 | if (strncmp(argv[1], sysfs_path, strlen(sysfs_path)) == 0) { |
73 | devpath = &argv[1][strlen(sysfs_path)] ; | |
74 | } | |
8a0acf85 KS |
75 | else |
76 | if (argv[1][0] != '/') { | |
77 | /* prepend '/' if missing */ | |
78 | strfieldcpy(temp, "/"); | |
79 | strfieldcat(temp, argv[1]); | |
80 | devpath = temp; | |
81 | } else { | |
82 | devpath = argv[1]; | |
83 | } | |
84 | ||
85 | info("looking at '%s'", devpath); | |
bb051f66 | 86 | |
bb051f66 GKH |
87 | /* initialize the naming deamon */ |
88 | namedev_init(); | |
89 | ||
a0294b76 | 90 | if (argc == 3) |
ce4256bd GKH |
91 | subsystem = argv[2]; |
92 | ||
7a947ce5 | 93 | /* fill in values and test_run flag*/ |
45a7b668 | 94 | udev_init_device(&udev, devpath, subsystem); |
7a947ce5 | 95 | |
5ce120d3 KS |
96 | /* skip subsystems without "dev", but handle net devices */ |
97 | if (udev.type != 'n' && subsystem_expect_no_dev(udev.subsystem)) { | |
98 | info("don't care about '%s' devices", udev.subsystem); | |
99 | return 2; | |
100 | } | |
101 | ||
7a947ce5 KS |
102 | /* open the device */ |
103 | snprintf(path, SYSFS_PATH_MAX, "%s%s", sysfs_path, udev.devpath); | |
104 | class_dev = sysfs_open_class_device_path(path); | |
e5e2ea95 KS |
105 | if (class_dev == NULL) { |
106 | info("sysfs_open_class_device_path failed"); | |
107 | return 1; | |
108 | } | |
109 | ||
5ce120d3 | 110 | info("opened class_dev->name='%s'", class_dev->name); |
7a947ce5 | 111 | |
5d24c6ca KS |
112 | /* simulate node creation with test flag */ |
113 | udev.test_run = 1; | |
7a947ce5 | 114 | udev_add_device(&udev, class_dev); |
bb051f66 | 115 | |
5d24c6ca KS |
116 | sysfs_close_class_device(class_dev); |
117 | ||
8a0acf85 | 118 | return 0; |
bb051f66 | 119 | } |