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Commit | Line | Data |
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be9b51f6 | 1 | /* |
55e9959b | 2 | * Copyright (C) 2004-2008 Kay Sievers <kay.sievers@vrfy.org> |
be9b51f6 | 3 | * |
55e9959b KS |
4 | * This program is free software: you can redistribute it and/or modify |
5 | * it under the terms of the GNU General Public License as published by | |
6 | * the Free Software Foundation, either version 2 of the License, or | |
7 | * (at your option) any later version. | |
be9b51f6 | 8 | * |
55e9959b KS |
9 | * This program is distributed in the hope that it will be useful, |
10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
12 | * GNU General Public License for more details. | |
13 | * | |
14 | * You should have received a copy of the GNU General Public License | |
15 | * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
be9b51f6 KS |
16 | */ |
17 | ||
01618658 KS |
18 | #include "config.h" |
19 | ||
be9b51f6 KS |
20 | #include <stdlib.h> |
21 | #include <string.h> | |
22 | #include <stdio.h> | |
1aa1e248 | 23 | #include <stddef.h> |
034f35d7 | 24 | #include <ctype.h> |
87171e46 KS |
25 | #include <stdarg.h> |
26 | #include <unistd.h> | |
1aa1e248 | 27 | #include <dirent.h> |
87171e46 | 28 | #include <errno.h> |
11f1bb5a | 29 | #include <getopt.h> |
492e76c9 KS |
30 | #include <sys/stat.h> |
31 | #include <sys/types.h> | |
be9b51f6 | 32 | |
869fc2f1 | 33 | #include "udev.h" |
be9b51f6 | 34 | |
7d563a17 | 35 | static void print_all_attributes(struct udev *udev, const char *devpath, const char *key) |
be9b51f6 | 36 | { |
17fcfb59 | 37 | char path[UTIL_PATH_SIZE]; |
1aa1e248 KS |
38 | DIR *dir; |
39 | struct dirent *dent; | |
40 | ||
31c1f537 KS |
41 | util_strlcpy(path, udev_get_sys_path(udev), sizeof(path)); |
42 | util_strlcat(path, devpath, sizeof(path)); | |
1aa1e248 KS |
43 | |
44 | dir = opendir(path); | |
45 | if (dir != NULL) { | |
46 | for (dent = readdir(dir); dent != NULL; dent = readdir(dir)) { | |
492e76c9 | 47 | struct stat statbuf; |
17fcfb59 | 48 | char filename[UTIL_PATH_SIZE]; |
1aa1e248 | 49 | char *attr_value; |
17fcfb59 | 50 | char value[UTIL_NAME_SIZE]; |
1aa1e248 KS |
51 | size_t len; |
52 | ||
492e76c9 KS |
53 | if (dent->d_name[0] == '.') |
54 | continue; | |
55 | ||
e9b64770 KS |
56 | if (strcmp(dent->d_name, "uevent") == 0) |
57 | continue; | |
4c46d72a KS |
58 | if (strcmp(dent->d_name, "dev") == 0) |
59 | continue; | |
e9b64770 | 60 | |
31c1f537 KS |
61 | util_strlcpy(filename, path, sizeof(filename)); |
62 | util_strlcat(filename, "/", sizeof(filename)); | |
63 | util_strlcat(filename, dent->d_name, sizeof(filename)); | |
492e76c9 KS |
64 | if (lstat(filename, &statbuf) != 0) |
65 | continue; | |
66 | if (S_ISLNK(statbuf.st_mode)) | |
67 | continue; | |
68 | ||
7d563a17 | 69 | attr_value = sysfs_attr_get_value(udev, devpath, dent->d_name); |
1aa1e248 KS |
70 | if (attr_value == NULL) |
71 | continue; | |
31c1f537 | 72 | len = util_strlcpy(value, attr_value, sizeof(value)); |
1f7a36f2 MM |
73 | if(len >= sizeof(value)) |
74 | len = sizeof(value) - 1; | |
7d563a17 | 75 | dbg(udev, "attr '%s'='%s'(%zi)\n", dent->d_name, value, len); |
1aa1e248 | 76 | |
1aa1e248 KS |
77 | /* skip nonprintable attributes */ |
78 | while (len && isprint(value[len-1])) | |
79 | len--; | |
80 | if (len) { | |
7d563a17 | 81 | dbg(udev, "attribute value of '%s' non-printable, skip\n", dent->d_name); |
1aa1e248 KS |
82 | continue; |
83 | } | |
6276fdd2 | 84 | |
95776dc6 | 85 | printf(" %s{%s}==\"%s\"\n", key, dent->d_name, value); |
6276fdd2 | 86 | } |
be9b51f6 KS |
87 | } |
88 | printf("\n"); | |
be9b51f6 KS |
89 | } |
90 | ||
7d563a17 | 91 | static int print_device_chain(struct udev *udev, const char *devpath) |
87171e46 | 92 | { |
1aa1e248 | 93 | struct sysfs_device *dev; |
e48fc108 | 94 | |
7d563a17 | 95 | dev = sysfs_device_get(udev, devpath); |
bc2a89fa KS |
96 | if (dev == NULL) |
97 | return -1; | |
98 | ||
1aa1e248 | 99 | printf("\n" |
6cf19e52 KS |
100 | "Udevinfo starts with the device specified by the devpath and then\n" |
101 | "walks up the chain of parent devices. It prints for every device\n" | |
102 | "found, all possible attributes in the udev rules key format.\n" | |
103 | "A rule to match, can be composed by the attributes of the device\n" | |
104 | "and the attributes from one single parent device.\n" | |
dba8c18b | 105 | "\n"); |
f61d732a | 106 | |
1aa1e248 | 107 | printf(" looking at device '%s':\n", dev->devpath); |
95776dc6 | 108 | printf(" KERNEL==\"%s\"\n", dev->kernel); |
1aa1e248 | 109 | printf(" SUBSYSTEM==\"%s\"\n", dev->subsystem); |
22f5934a | 110 | printf(" DRIVER==\"%s\"\n", dev->driver); |
7d563a17 | 111 | print_all_attributes(udev, dev->devpath, "ATTR"); |
034f35d7 | 112 | |
1aa1e248 KS |
113 | /* walk up the chain of devices */ |
114 | while (1) { | |
7d563a17 | 115 | dev = sysfs_device_get_parent(udev, dev); |
1aa1e248 | 116 | if (dev == NULL) |
034f35d7 | 117 | break; |
6cf19e52 | 118 | printf(" looking at parent device '%s':\n", dev->devpath); |
95776dc6 | 119 | printf(" KERNELS==\"%s\"\n", dev->kernel); |
64e0ce85 | 120 | printf(" SUBSYSTEMS==\"%s\"\n", dev->subsystem); |
95776dc6 | 121 | printf(" DRIVERS==\"%s\"\n", dev->driver); |
1aa1e248 | 122 | |
7d563a17 | 123 | print_all_attributes(udev, dev->devpath, "ATTRS"); |
be9b51f6 KS |
124 | } |
125 | ||
1aa1e248 KS |
126 | return 0; |
127 | } | |
128 | ||
7d563a17 | 129 | static void print_record(struct udevice *udevice) |
1aa1e248 KS |
130 | { |
131 | struct name_entry *name_loop; | |
132 | ||
7d563a17 KS |
133 | printf("P: %s\n", udevice->dev->devpath); |
134 | printf("N: %s\n", udevice->name); | |
135 | list_for_each_entry(name_loop, &udevice->symlink_list, node) | |
1aa1e248 | 136 | printf("S: %s\n", name_loop->name); |
7d563a17 KS |
137 | if (udevice->link_priority != 0) |
138 | printf("L: %i\n", udevice->link_priority); | |
139 | if (udevice->partitions != 0) | |
140 | printf("A:%u\n", udevice->partitions); | |
141 | if (udevice->ignore_remove) | |
142 | printf("R:%u\n", udevice->ignore_remove); | |
143 | list_for_each_entry(name_loop, &udevice->env_list, node) | |
1aa1e248 | 144 | printf("E: %s\n", name_loop->name); |
be9b51f6 | 145 | } |
87171e46 | 146 | |
7d563a17 KS |
147 | static void export_db(struct udev *udev) |
148 | { | |
db481105 KS |
149 | LIST_HEAD(name_list); |
150 | struct name_entry *name_loop; | |
db481105 | 151 | |
7d563a17 | 152 | udev_db_get_all_entries(udev, &name_list); |
fb179207 | 153 | list_for_each_entry(name_loop, &name_list, node) { |
7d563a17 | 154 | struct udevice *udevice_db; |
db481105 | 155 | |
7d563a17 KS |
156 | udevice_db = udev_device_init(udev); |
157 | if (udevice_db == NULL) | |
1aa1e248 | 158 | continue; |
7d563a17 KS |
159 | if (udev_db_get_device(udevice_db, name_loop->name) == 0) |
160 | print_record(udevice_db); | |
3045132a | 161 | printf("\n"); |
7d563a17 | 162 | udev_device_cleanup(udevice_db); |
db481105 | 163 | } |
7d563a17 | 164 | name_list_cleanup(udev, &name_list); |
9fe1a96d KS |
165 | } |
166 | ||
7d563a17 | 167 | static int lookup_device_by_name(struct udev *udev, struct udevice **udevice, const char *name) |
31de3a2b KS |
168 | { |
169 | LIST_HEAD(name_list); | |
be8594ab | 170 | int count; |
31de3a2b KS |
171 | struct name_entry *device; |
172 | int rc = -1; | |
173 | ||
7d563a17 | 174 | count = udev_db_get_devices_by_name(udev, name, &name_list); |
be8594ab | 175 | if (count <= 0) |
31de3a2b KS |
176 | goto out; |
177 | ||
7d563a17 | 178 | info(udev, "found %i devices for '%s'\n", count, name); |
be8594ab KS |
179 | |
180 | /* select the device that seems to match */ | |
31de3a2b | 181 | list_for_each_entry(device, &name_list, node) { |
7d563a17 | 182 | struct udevice *udevice_loop; |
17fcfb59 | 183 | char filename[UTIL_PATH_SIZE]; |
31de3a2b KS |
184 | struct stat statbuf; |
185 | ||
7d563a17 KS |
186 | udevice_loop = udev_device_init(udev); |
187 | if (udevice_loop == NULL) | |
44aff4cd | 188 | break; |
7d563a17 | 189 | if (udev_db_get_device(udevice_loop, device->name) != 0) |
44aff4cd | 190 | goto next; |
7d563a17 | 191 | info(udev, "found db entry '%s'\n", device->name); |
31de3a2b | 192 | |
44aff4cd | 193 | /* make sure, we don't get a link of a different device */ |
31c1f537 KS |
194 | util_strlcpy(filename, udev_get_dev_path(udev), sizeof(filename)); |
195 | util_strlcat(filename, "/", sizeof(filename)); | |
196 | util_strlcat(filename, name, sizeof(filename)); | |
31de3a2b | 197 | if (stat(filename, &statbuf) != 0) |
44aff4cd | 198 | goto next; |
7d563a17 KS |
199 | if (major(udevice_loop->devt) > 0 && udevice_loop->devt != statbuf.st_rdev) { |
200 | info(udev, "skip '%s', dev_t doesn't match\n", udevice_loop->name); | |
44aff4cd | 201 | goto next; |
31de3a2b | 202 | } |
be8594ab | 203 | rc = 0; |
7d563a17 | 204 | *udevice = udevice_loop; |
be8594ab | 205 | break; |
44aff4cd | 206 | next: |
7d563a17 | 207 | udev_device_cleanup(udevice_loop); |
31de3a2b KS |
208 | } |
209 | out: | |
7d563a17 | 210 | name_list_cleanup(udev, &name_list); |
31de3a2b KS |
211 | return rc; |
212 | } | |
213 | ||
d1acfc3e | 214 | static int stat_device(const char *name, int export, const char *prefix) |
f338bac8 KS |
215 | { |
216 | struct stat statbuf; | |
217 | ||
218 | if (stat(name, &statbuf) != 0) | |
219 | return -1; | |
220 | ||
d1acfc3e KS |
221 | if (export) { |
222 | if (prefix == NULL) | |
223 | prefix = "INFO_"; | |
224 | printf("%sMAJOR=%d\n" | |
225 | "%sMINOR=%d\n", | |
226 | prefix, major(statbuf.st_dev), | |
227 | prefix, minor(statbuf.st_dev)); | |
228 | } else | |
cce9d773 | 229 | printf("%d:%d\n", major(statbuf.st_dev), minor(statbuf.st_dev)); |
f338bac8 KS |
230 | return 0; |
231 | } | |
232 | ||
7d563a17 | 233 | int udevadm_info(struct udev *udev, int argc, char *argv[]) |
87171e46 | 234 | { |
7d563a17 | 235 | struct udevice *udevice = NULL; |
87171e46 | 236 | int root = 0; |
d1acfc3e KS |
237 | int export = 0; |
238 | const char *export_prefix = NULL; | |
24ca5c33 | 239 | |
e97717ba | 240 | static const struct option options[] = { |
11f1bb5a KS |
241 | { "name", 1, NULL, 'n' }, |
242 | { "path", 1, NULL, 'p' }, | |
243 | { "query", 1, NULL, 'q' }, | |
244 | { "attribute-walk", 0, NULL, 'a' }, | |
245 | { "export-db", 0, NULL, 'e' }, | |
246 | { "root", 0, NULL, 'r' }, | |
f338bac8 | 247 | { "device-id-of-file", 1, NULL, 'd' }, |
d1acfc3e KS |
248 | { "export", 0, NULL, 'x' }, |
249 | { "export-prefix", 1, NULL, 'P' }, | |
88caa9da | 250 | { "version", 0, NULL, 1 }, /* -V outputs braindead format */ |
11f1bb5a KS |
251 | { "help", 0, NULL, 'h' }, |
252 | {} | |
253 | }; | |
254 | ||
24ca5c33 KS |
255 | enum action_type { |
256 | ACTION_NONE, | |
257 | ACTION_QUERY, | |
258 | ACTION_ATTRIBUTE_WALK, | |
259 | ACTION_ROOT, | |
f338bac8 | 260 | ACTION_DEVICE_ID_FILE, |
24ca5c33 KS |
261 | } action = ACTION_NONE; |
262 | ||
b8476286 KS |
263 | enum query_type { |
264 | QUERY_NONE, | |
265 | QUERY_NAME, | |
266 | QUERY_PATH, | |
267 | QUERY_SYMLINK, | |
268 | QUERY_ENV, | |
269 | QUERY_ALL, | |
270 | } query = QUERY_NONE; | |
24ca5c33 | 271 | |
17fcfb59 KS |
272 | char path[UTIL_PATH_SIZE] = ""; |
273 | char name[UTIL_PATH_SIZE] = ""; | |
e48fc108 | 274 | struct name_entry *name_loop; |
1aa1e248 | 275 | int rc = 0; |
e48fc108 | 276 | |
87171e46 | 277 | while (1) { |
7d563a17 KS |
278 | int option; |
279 | ||
d1acfc3e | 280 | option = getopt_long(argc, argv, "aed:n:p:q:rxPVh", options, NULL); |
87171e46 KS |
281 | if (option == -1) |
282 | break; | |
283 | ||
7d563a17 | 284 | dbg(udev, "option '%c'\n", option); |
87171e46 KS |
285 | switch (option) { |
286 | case 'n': | |
2362eea6 | 287 | /* remove /dev if given */ |
7d563a17 | 288 | if (strncmp(optarg, udev_get_dev_path(udev), strlen(udev_get_dev_path(udev))) == 0) |
31c1f537 | 289 | util_strlcpy(name, &optarg[strlen(udev_get_dev_path(udev))+1], sizeof(name)); |
2362eea6 | 290 | else |
31c1f537 | 291 | util_strlcpy(name, optarg, sizeof(name)); |
ecc9ec57 | 292 | util_remove_trailing_chars(name, '/'); |
7d563a17 | 293 | dbg(udev, "name: %s\n", name); |
87171e46 | 294 | break; |
87171e46 | 295 | case 'p': |
2362eea6 | 296 | /* remove /sys if given */ |
7d563a17 | 297 | if (strncmp(optarg, udev_get_sys_path(udev), strlen(udev_get_sys_path(udev))) == 0) |
31c1f537 | 298 | util_strlcpy(path, &optarg[strlen(udev_get_sys_path(udev))], sizeof(path)); |
1aa1e248 | 299 | else |
31c1f537 | 300 | util_strlcpy(path, optarg, sizeof(path)); |
ecc9ec57 | 301 | util_remove_trailing_chars(path, '/'); |
e7e194a0 KS |
302 | |
303 | /* possibly resolve to real devpath */ | |
17fcfb59 KS |
304 | if (util_resolve_sys_link(udev, path, sizeof(path)) != 0) { |
305 | char temp[UTIL_PATH_SIZE]; | |
e7e194a0 KS |
306 | char *pos; |
307 | ||
308 | /* also check if the parent is a link */ | |
31c1f537 | 309 | util_strlcpy(temp, path, sizeof(temp)); |
e7e194a0 KS |
310 | pos = strrchr(temp, '/'); |
311 | if (pos != 0) { | |
17fcfb59 | 312 | char tail[UTIL_PATH_SIZE]; |
e7e194a0 | 313 | |
31c1f537 | 314 | util_strlcpy(tail, pos, sizeof(tail)); |
e7e194a0 | 315 | pos[0] = '\0'; |
17fcfb59 | 316 | if (util_resolve_sys_link(udev, temp, sizeof(temp)) == 0) { |
31c1f537 KS |
317 | util_strlcpy(path, temp, sizeof(path)); |
318 | util_strlcat(path, tail, sizeof(path)); | |
e7e194a0 KS |
319 | } |
320 | } | |
321 | } | |
7d563a17 | 322 | dbg(udev, "path: %s\n", path); |
87171e46 | 323 | break; |
87171e46 | 324 | case 'q': |
24ca5c33 | 325 | action = ACTION_QUERY; |
87171e46 | 326 | if (strcmp(optarg, "name") == 0) { |
b8476286 | 327 | query = QUERY_NAME; |
87171e46 KS |
328 | break; |
329 | } | |
87171e46 | 330 | if (strcmp(optarg, "symlink") == 0) { |
b8476286 | 331 | query = QUERY_SYMLINK; |
87171e46 KS |
332 | break; |
333 | } | |
87171e46 | 334 | if (strcmp(optarg, "path") == 0) { |
b8476286 KS |
335 | query = QUERY_PATH; |
336 | break; | |
337 | } | |
b8476286 KS |
338 | if (strcmp(optarg, "env") == 0) { |
339 | query = QUERY_ENV; | |
87171e46 KS |
340 | break; |
341 | } | |
8ea84a8a | 342 | if (strcmp(optarg, "all") == 0) { |
b8476286 | 343 | query = QUERY_ALL; |
8ea84a8a KS |
344 | break; |
345 | } | |
61b1b706 | 346 | fprintf(stderr, "unknown query type\n"); |
1aa1e248 | 347 | rc = 2; |
e48fc108 | 348 | goto exit; |
87171e46 | 349 | case 'r': |
24ca5c33 KS |
350 | if (action == ACTION_NONE) |
351 | action = ACTION_ROOT; | |
87171e46 KS |
352 | root = 1; |
353 | break; | |
f338bac8 KS |
354 | case 'd': |
355 | action = ACTION_DEVICE_ID_FILE; | |
31c1f537 | 356 | util_strlcpy(name, optarg, sizeof(name)); |
f338bac8 | 357 | break; |
87171e46 | 358 | case 'a': |
24ca5c33 | 359 | action = ACTION_ATTRIBUTE_WALK; |
87171e46 | 360 | break; |
24ca5c33 | 361 | case 'e': |
7d563a17 | 362 | export_db(udev); |
e48fc108 | 363 | goto exit; |
d1acfc3e KS |
364 | case 'x': |
365 | export = 1; | |
366 | break; | |
367 | case 'P': | |
368 | export_prefix = optarg; | |
369 | break; | |
88caa9da | 370 | case 1: |
01618658 | 371 | printf("%s\n", VERSION); |
88caa9da | 372 | goto exit; |
87171e46 | 373 | case 'V': |
01618658 | 374 | printf("udevinfo, version %s\n", VERSION); |
e48fc108 | 375 | goto exit; |
87171e46 | 376 | case 'h': |
225cb03b | 377 | printf("Usage: udevadm info OPTIONS\n" |
f338bac8 KS |
378 | " --query=<type> query database for the specified value:\n" |
379 | " name name of device node\n" | |
380 | " symlink pointing to node\n" | |
381 | " path sysfs device path\n" | |
382 | " env the device related imported environment\n" | |
383 | " all all values\n" | |
384 | " --path=<devpath> sysfs device path used for query or chain\n" | |
385 | " --name=<name> node or symlink name used for query\n" | |
386 | " --root prepend to query result or print udev_root\n" | |
387 | " --attribute-walk print all key matches while walking along chain\n" | |
388 | " of parent devices\n" | |
389 | " --device-id-of-file=<file> print major/minor of underlying device\n" | |
390 | " --export-db export the content of the udev database\n" | |
391 | " --help print this text\n" | |
e3396a2d KS |
392 | "\n"); |
393 | goto exit; | |
87171e46 | 394 | default: |
24ca5c33 | 395 | goto exit; |
87171e46 KS |
396 | } |
397 | } | |
398 | ||
24ca5c33 KS |
399 | /* run action */ |
400 | switch (action) { | |
401 | case ACTION_QUERY: | |
2362eea6 | 402 | /* needs devpath or node/symlink name for query */ |
87171e46 | 403 | if (path[0] != '\0') { |
7d563a17 KS |
404 | udevice = udev_device_init(udev); |
405 | if (udevice == NULL) { | |
44aff4cd KS |
406 | rc = 1; |
407 | goto exit; | |
408 | } | |
7d563a17 | 409 | if (udev_db_get_device(udevice, path) != 0) { |
2362eea6 | 410 | fprintf(stderr, "no record for '%s' in database\n", path); |
1aa1e248 | 411 | rc = 3; |
87171e46 KS |
412 | goto exit; |
413 | } | |
24ca5c33 | 414 | } else if (name[0] != '\0') { |
7d563a17 | 415 | if (lookup_device_by_name(udev, &udevice, name) != 0) { |
2362eea6 KS |
416 | fprintf(stderr, "node name not found\n"); |
417 | rc = 4; | |
87171e46 KS |
418 | goto exit; |
419 | } | |
24ca5c33 | 420 | } else { |
11f1bb5a | 421 | fprintf(stderr, "query needs --path or node --name specified\n"); |
1aa1e248 | 422 | rc = 4; |
24ca5c33 | 423 | goto exit; |
87171e46 KS |
424 | } |
425 | ||
87171e46 | 426 | switch(query) { |
b8476286 | 427 | case QUERY_NAME: |
e48fc108 | 428 | if (root) |
7d563a17 | 429 | printf("%s/%s\n", udev_get_dev_path(udev), udevice->name); |
e48fc108 | 430 | else |
7d563a17 | 431 | printf("%s\n", udevice->name); |
24ca5c33 | 432 | break; |
b8476286 | 433 | case QUERY_SYMLINK: |
7d563a17 KS |
434 | list_for_each_entry(name_loop, &udevice->symlink_list, node) { |
435 | char c = name_loop->node.next != &udevice->symlink_list ? ' ' : '\n'; | |
18770246 KS |
436 | |
437 | if (root) | |
7d563a17 | 438 | printf("%s/%s%c", udev_get_dev_path(udev), name_loop->name, c); |
18770246 KS |
439 | else |
440 | printf("%s%c", name_loop->name, c); | |
441 | } | |
24ca5c33 | 442 | break; |
b8476286 | 443 | case QUERY_PATH: |
7d563a17 | 444 | printf("%s\n", udevice->dev->devpath); |
e48fc108 | 445 | goto exit; |
b8476286 | 446 | case QUERY_ENV: |
7d563a17 | 447 | list_for_each_entry(name_loop, &udevice->env_list, node) |
b8476286 | 448 | printf("%s\n", name_loop->name); |
24ca5c33 | 449 | break; |
b8476286 | 450 | case QUERY_ALL: |
7d563a17 | 451 | print_record(udevice); |
24ca5c33 | 452 | break; |
87171e46 | 453 | default: |
e3396a2d | 454 | fprintf(stderr, "unknown query type\n"); |
24ca5c33 | 455 | break; |
87171e46 | 456 | } |
24ca5c33 KS |
457 | break; |
458 | case ACTION_ATTRIBUTE_WALK: | |
1aa0c52b | 459 | if (path[0] != '\0') { |
7d563a17 | 460 | if (print_device_chain(udev, path) != 0) { |
fd807192 | 461 | fprintf(stderr, "no valid sysfs device found\n"); |
bc2a89fa KS |
462 | rc = 4; |
463 | goto exit; | |
464 | } | |
1aa0c52b | 465 | } else if (name[0] != '\0') { |
7d563a17 | 466 | if (lookup_device_by_name(udev, &udevice, name) != 0) { |
1aa0c52b KS |
467 | fprintf(stderr, "node name not found\n"); |
468 | rc = 4; | |
469 | goto exit; | |
470 | } | |
7d563a17 | 471 | if (print_device_chain(udev, udevice->dev->devpath) != 0) { |
fd807192 | 472 | fprintf(stderr, "no valid sysfs device found\n"); |
bc2a89fa KS |
473 | rc = 4; |
474 | goto exit; | |
475 | } | |
1aa0c52b | 476 | } else { |
11f1bb5a | 477 | fprintf(stderr, "attribute walk needs --path or node --name specified\n"); |
1aa0c52b KS |
478 | rc = 5; |
479 | goto exit; | |
480 | } | |
24ca5c33 | 481 | break; |
f338bac8 | 482 | case ACTION_DEVICE_ID_FILE: |
d1acfc3e | 483 | if (stat_device(name, export, export_prefix) != 0) |
f338bac8 KS |
484 | rc = 6; |
485 | break; | |
24ca5c33 | 486 | case ACTION_ROOT: |
7d563a17 | 487 | printf("%s\n", udev_get_dev_path(udev)); |
24ca5c33 KS |
488 | break; |
489 | default: | |
e3396a2d | 490 | fprintf(stderr, "missing option\n"); |
1aa1e248 | 491 | rc = 1; |
24ca5c33 | 492 | break; |
87171e46 KS |
493 | } |
494 | ||
e48fc108 | 495 | exit: |
7d563a17 | 496 | udev_device_cleanup(udevice); |
1aa1e248 | 497 | return rc; |
87171e46 | 498 | } |