#include "udev.h"
-static void print_all_attributes(struct udev_device *device, const char *key)
+static bool skip_attribute(const char *name)
{
- struct udev *udev = udev_device_get_udev(device);
- DIR *dir;
- struct dirent *dent;
+ static const char const *skip[] = {
+ "uevent",
+ "dev",
+ "modalias",
+ "resource",
+ "driver",
+ "subsystem",
+ "module",
+ };
+ unsigned int i;
- dir = opendir(udev_device_get_syspath(device));
- if (dir != NULL) {
- for (dent = readdir(dir); dent != NULL; dent = readdir(dir)) {
- struct stat statbuf;
- const char *value;
- size_t len;
-
- if (dent->d_name[0] == '.')
- continue;
-
- if (strcmp(dent->d_name, "uevent") == 0)
- continue;
- if (strcmp(dent->d_name, "dev") == 0)
- continue;
-
- if (fstatat(dirfd(dir), dent->d_name, &statbuf, AT_SYMLINK_NOFOLLOW) != 0)
- continue;
- if (S_ISLNK(statbuf.st_mode))
- continue;
-
- value = udev_device_get_sysattr_value(device, dent->d_name);
- if (value == NULL)
- continue;
- dbg(udev, "attr '%s'='%s'\n", dent->d_name, value);
-
- /* skip nonprintable attributes */
- len = strlen(value);
- while (len > 0 && isprint(value[len-1]))
- len--;
- if (len > 0) {
- dbg(udev, "attribute value of '%s' non-printable, skip\n", dent->d_name);
- continue;
- }
+ for (i = 0; i < ARRAY_SIZE(skip); i++)
+ if (strcmp(name, skip[i]) == 0)
+ return true;
+ return false;
+}
- printf(" %s{%s}==\"%s\"\n", key, dent->d_name, value);
+static void print_all_attributes(struct udev_device *device, const char *key)
+{
+ struct udev *udev = udev_device_get_udev(device);
+ struct udev_list_entry *sysattr;
+
+ udev_list_entry_foreach(sysattr, udev_device_get_sysattr_list_entry(device)) {
+ const char *name;
+ const char *value;
+ size_t len;
+
+ name = udev_list_entry_get_name(sysattr);
+ if (skip_attribute(name))
+ continue;
+
+ value = udev_device_get_sysattr_value(device, name);
+ if (value == NULL)
+ continue;
+ dbg(udev, "attr '%s'='%s'\n", name, value);
+
+ /* skip any values that look like a path */
+ if (value[0] == '/')
+ continue;
+
+ /* skip nonprintable attributes */
+ len = strlen(value);
+ while (len > 0 && isprint(value[len-1]))
+ len--;
+ if (len > 0) {
+ dbg(udev, "attribute value of '%s' non-printable, skip\n", name);
+ continue;
}
- closedir(dir);
+
+ printf(" %s{%s}==\"%s\"\n", key, name, value);
}
printf("\n");
}
printf("\n");
}
-static int stat_device(const char *name, int export, const char *prefix)
+static int stat_device(const char *name, bool export, const char *prefix)
{
struct stat statbuf;
return 0;
}
-int udevadm_info(struct udev *udev, int argc, char *argv[])
+static void cleanup_dir(DIR *dir, mode_t mask, int depth)
+{
+ struct dirent *dent;
+
+ if (depth <= 0)
+ return;
+
+ for (dent = readdir(dir); dent != NULL; dent = readdir(dir)) {
+ struct stat stats;
+
+ if (dent->d_name[0] == '.')
+ continue;
+ if (fstatat(dirfd(dir), dent->d_name, &stats, AT_SYMLINK_NOFOLLOW) != 0)
+ continue;
+ if ((stats.st_mode & mask) != 0)
+ continue;
+ if (S_ISDIR(stats.st_mode)) {
+ DIR *dir2;
+
+ dir2 = fdopendir(openat(dirfd(dir), dent->d_name, O_RDONLY|O_NONBLOCK|O_DIRECTORY|O_CLOEXEC));
+ if (dir2 != NULL) {
+ cleanup_dir(dir2, mask, depth-1);
+ closedir(dir2);
+ }
+ unlinkat(dirfd(dir), dent->d_name, AT_REMOVEDIR);
+ } else {
+ unlinkat(dirfd(dir), dent->d_name, 0);
+ }
+ }
+}
+
+static void cleanup_db(struct udev *udev)
+{
+ char filename[UTIL_PATH_SIZE];
+ DIR *dir;
+
+ util_strscpyl(filename, sizeof(filename), udev_get_run_path(udev), "/queue.bin", NULL);
+ unlink(filename);
+
+ util_strscpyl(filename, sizeof(filename), udev_get_run_path(udev), "/data", NULL);
+ dir = opendir(filename);
+ if (dir != NULL) {
+ cleanup_dir(dir, S_ISVTX, 1);
+ closedir(dir);
+ }
+
+ util_strscpyl(filename, sizeof(filename), udev_get_run_path(udev), "/links", NULL);
+ dir = opendir(filename);
+ if (dir != NULL) {
+ cleanup_dir(dir, 0, 2);
+ closedir(dir);
+ }
+
+ util_strscpyl(filename, sizeof(filename), udev_get_run_path(udev), "/tags", NULL);
+ dir = opendir(filename);
+ if (dir != NULL) {
+ cleanup_dir(dir, 0, 2);
+ closedir(dir);
+ }
+
+ util_strscpyl(filename, sizeof(filename), udev_get_run_path(udev), "/watch", NULL);
+ dir = opendir(filename);
+ if (dir != NULL) {
+ cleanup_dir(dir, 0, 1);
+ closedir(dir);
+ }
+
+ util_strscpyl(filename, sizeof(filename), udev_get_run_path(udev), "/firmware-missing", NULL);
+ dir = opendir(filename);
+ if (dir != NULL) {
+ cleanup_dir(dir, 0, 1);
+ closedir(dir);
+ }
+}
+
+static int uinfo(struct udev *udev, int argc, char *argv[])
{
struct udev_device *device = NULL;
- int root = 0;
- int export = 0;
+ bool root = 0;
+ bool export = 0;
const char *export_prefix = NULL;
char path[UTIL_PATH_SIZE];
char name[UTIL_PATH_SIZE];
{ "path", required_argument, NULL, 'p' },
{ "query", required_argument, NULL, 'q' },
{ "attribute-walk", no_argument, NULL, 'a' },
+ { "cleanup-db", no_argument, NULL, 'c' },
{ "export-db", no_argument, NULL, 'e' },
{ "root", no_argument, NULL, 'r' },
+ { "run", no_argument, NULL, 'R' },
{ "device-id-of-file", required_argument, NULL, 'd' },
{ "export", no_argument, NULL, 'x' },
{ "export-prefix", required_argument, NULL, 'P' },
QUERY_ALL,
} query = QUERY_NONE;
- while (1) {
+ for (;;) {
int option;
struct stat statbuf;
- option = getopt_long(argc, argv, "aed:n:p:q:rxPVh", options, NULL);
+ option = getopt_long(argc, argv, "aced:n:p:q:rxP:RVh", options, NULL);
if (option == -1)
break;
case 'r':
if (action == ACTION_NONE)
action = ACTION_ROOT;
- root = 1;
+ root = true;
break;
+ case 'R':
+ printf("%s\n", udev_get_run_path(udev));
+ goto exit;
case 'd':
action = ACTION_DEVICE_ID_FILE;
util_strscpy(name, sizeof(name), optarg);
case 'e':
export_devices(udev);
goto exit;
+ case 'c':
+ cleanup_db(udev);
+ goto exit;
case 'x':
- export = 1;
+ export = true;
break;
case 'P':
export_prefix = optarg;
" --attribute-walk print all key matches while walking along the chain\n"
" of parent devices\n"
" --device-id-of-file=<file> print major:minor of device containing this file\n"
+ " --export export key/value pairs\n"
+ " --export-prefix export the key name with a prefix\n"
" --export-db export the content of the udev database\n"
+ " --cleanup-db cleanup the udev database\n"
" --help\n\n");
goto exit;
default:
+ rc = 1;
goto exit;
}
}
case QUERY_PROPERTY:
list_entry = udev_device_get_properties_list_entry(device);
while (list_entry != NULL) {
- printf("%s=%s\n", udev_list_entry_get_name(list_entry), udev_list_entry_get_value(list_entry));
+ if (export) {
+ const char *prefix = export_prefix;
+
+ if (prefix == NULL)
+ prefix = "";
+ printf("%s%s='%s'\n", prefix,
+ udev_list_entry_get_name(list_entry),
+ udev_list_entry_get_value(list_entry));
+ } else {
+ printf("%s=%s\n", udev_list_entry_get_name(list_entry), udev_list_entry_get_value(list_entry));
+ }
list_entry = udev_list_entry_get_next(list_entry);
}
break;
udev_device_unref(device);
return rc;
}
+
+const struct udevadm_cmd udevadm_info = {
+ .name = "info",
+ .cmd = uinfo,
+ .help = "query sysfs or the udev database",
+};
~ianmdlvl / elogind.git / blobdiff