#include "udev.h"
-
-#ifdef USE_LOG
-void log_message (int priority, const char *format, ...)
-{
- va_list args;
-
- if (priority > udev_log_priority)
- return;
-
- va_start(args, format);
- vsyslog(priority, format, args);
- va_end(args);
-}
-#endif
-
static void print_all_attributes(const char *devpath, const char *key)
{
char path[PATH_SIZE];
if (dent->d_name[0] == '.')
continue;
+ if (strcmp(dent->d_name, "uevent") == 0)
+ continue;
+
strlcpy(filename, path, sizeof(filename));
strlcat(filename, "/", sizeof(filename));
strlcat(filename, dent->d_name, sizeof(filename));
if (attr_value == NULL)
continue;
len = strlcpy(value, attr_value, sizeof(value));
+ if(len >= sizeof(value))
+ len = sizeof(value) - 1;
dbg("attr '%s'='%s'(%zi)", dent->d_name, value, len);
/* remove trailing newlines */
return rc;
}
-int main(int argc, char *argv[], char *envp[])
+static int stat_device(const char *name)
+{
+ struct stat statbuf;
+
+ if (stat(name, &statbuf) != 0)
+ return -1;
+
+ printf("%d %d\n", major(statbuf.st_dev), minor(statbuf.st_dev));
+ return 0;
+}
+
+int udevinfo(int argc, char *argv[], char *envp[])
{
int option;
struct udevice *udev;
{ "attribute-walk", 0, NULL, 'a' },
{ "export-db", 0, NULL, 'e' },
{ "root", 0, NULL, 'r' },
+ { "device-id-of-file", 1, NULL, 'd' },
{ "version", 0, NULL, 1 }, /* -V outputs braindead format */
{ "help", 0, NULL, 'h' },
{}
ACTION_QUERY,
ACTION_ATTRIBUTE_WALK,
ACTION_ROOT,
+ ACTION_DEVICE_ID_FILE,
} action = ACTION_NONE;
enum query_type {
goto exit;
}
- /* get command line options */
while (1) {
- option = getopt_long(argc, argv, "aen:p:q:rVh", options, NULL);
+ option = getopt_long(argc, argv, "aed:n:p:q:rVh", options, NULL);
if (option == -1)
break;
strlcpy(name, &optarg[strlen(udev_root)+1], sizeof(name));
else
strlcpy(name, optarg, sizeof(name));
- dbg("name: %s\n", name);
+ dbg("name: %s", name);
break;
case 'p':
/* remove /sys if given */
strlcpy(path, &optarg[strlen(sysfs_path)], sizeof(path));
else
strlcpy(path, optarg, sizeof(path));
- dbg("path: %s\n", path);
+ dbg("path: %s", path);
break;
case 'q':
- dbg("udev query: %s\n", optarg);
action = ACTION_QUERY;
if (strcmp(optarg, "name") == 0) {
query = QUERY_NAME;
action = ACTION_ROOT;
root = 1;
break;
+ case 'd':
+ action = ACTION_DEVICE_ID_FILE;
+ strlcpy(name, optarg, sizeof(name));
+ break;
case 'a':
action = ACTION_ATTRIBUTE_WALK;
break;
printf("udevinfo, version %s\n", UDEV_VERSION);
goto exit;
case 'h':
- printf("Usage: udevinfo OPTIONS\n"
- " --query=<type> query database for the specified value:\n"
- " name name of device node\n"
- " symlink pointing to node\n"
- " path sysfs device path\n"
- " env the device related imported environment\n"
- " all all values\n"
- "\n"
- " --path=<devpath> sysfs device path used for query or chain\n"
- " --name=<name> node or symlink name used for query\n"
- "\n"
- " --root prepend to query result or print udev_root\n"
- " --attribute-walk print all SYSFS_attributes along the device chain\n"
- " --export-db export the content of the udev database\n"
- " --help print this text\n"
+ printf("Usage: udevadm info OPTIONS\n"
+ " --query=<type> query database for the specified value:\n"
+ " name name of device node\n"
+ " symlink pointing to node\n"
+ " path sysfs device path\n"
+ " env the device related imported environment\n"
+ " all all values\n"
+ " --path=<devpath> sysfs device path used for query or chain\n"
+ " --name=<name> node or symlink name used for query\n"
+ " --root prepend to query result or print udev_root\n"
+ " --attribute-walk print all key matches while walking along chain\n"
+ " of parent devices\n"
+ " --device-id-of-file=<file> print major/minor of underlying device\n"
+ " --export-db export the content of the udev database\n"
+ " --help print this text\n"
"\n");
goto exit;
default:
printf("%s\n", udev->name);
break;
case QUERY_SYMLINK:
- if (list_empty(&udev->symlink_list))
- goto exit;
- if (root)
- list_for_each_entry(name_loop, &udev->symlink_list, node)
- printf("%s/%s ", udev_root, name_loop->name);
- else
- list_for_each_entry(name_loop, &udev->symlink_list, node)
- printf("%s ", name_loop->name);
- printf("\n");
+ list_for_each_entry(name_loop, &udev->symlink_list, node) {
+ char c = name_loop->node.next != &udev->symlink_list ? ' ' : '\n';
+
+ if (root)
+ printf("%s/%s%c", udev_root, name_loop->name, c);
+ else
+ printf("%s%c", name_loop->name, c);
+ }
break;
case QUERY_PATH:
printf("%s\n", udev->dev->devpath);
goto exit;
}
break;
+ case ACTION_DEVICE_ID_FILE:
+ if (stat_device(name) != 0)
+ rc = 6;
+ break;
case ACTION_ROOT:
printf("%s\n", udev_root);
break;
~ianmdlvl / elogind.git / blobdiff