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Diffstat (limited to 'src/udev/udevadm-info.c')
-rw-r--r--src/udev/udevadm-info.c52
1 files changed, 28 insertions, 24 deletions
diff --git a/src/udev/udevadm-info.c b/src/udev/udevadm-info.c
index a56f159543..f52a03dfd0 100644
--- a/src/udev/udevadm-info.c
+++ b/src/udev/udevadm-info.c
@@ -258,6 +258,31 @@ static void cleanup_db(struct udev *udev) {
}
}
+static void help(void) {
+
+ printf("%s info [OPTIONS] [DEVPATH|FILE]\n\n"
+ "Query sysfs or the udev database.\n\n"
+ " -h --help Print this message\n"
+ " --version Print version of the program\n"
+ " -q --query=TYPE Query device information:\n"
+ " name Name of device node\n"
+ " symlink Pointing to node\n"
+ " path sysfs device path\n"
+ " property The device properties\n"
+ " all All values\n"
+ " -p --path=SYSPATH sysfs device path used for query or attribute walk\n"
+ " -n --name=NAME Node or symlink name used for query or attribute walk\n"
+ " -r --root Prepend dev directory to path names\n"
+ " -a --attribute-walk Print all key matches walking along the chain\n"
+ " of parent devices\n"
+ " -d --device-id-of-file=FILE Print major:minor of device containing this file\n"
+ " -x --export Export key/value pairs\n"
+ " -P --export-prefix Export the key name with a prefix\n"
+ " -e --export-db Export the content of the udev database\n"
+ " -c --cleanup-db Clean up the udev database\n"
+ , program_invocation_short_name);
+}
+
static int uinfo(struct udev *udev, int argc, char *argv[]) {
_cleanup_udev_device_unref_ struct udev_device *device = NULL;
bool root = 0;
@@ -283,27 +308,6 @@ static int uinfo(struct udev *udev, int argc, char *argv[]) {
{}
};
- static const char *usage =
- "Usage: udevadm info [OPTIONS] [DEVPATH|FILE]\n"
- " -q,--query=TYPE query device information:\n"
- " name name of device node\n"
- " symlink pointing to node\n"
- " path sys device path\n"
- " property the device properties\n"
- " all all values\n"
- " -p,--path=SYSPATH sys device path used for query or attribute walk\n"
- " -n,--name=NAME node or symlink name used for query or attribute walk\n"
- " -r,--root prepend dev directory to path names\n"
- " -a,--attribute-walk print all key matches walking along the chain\n"
- " of parent devices\n"
- " -d,--device-id-of-file=FILE print major:minor of device containing this file\n"
- " -x,--export export key/value pairs\n"
- " -P,--export-prefix export the key name with a prefix\n"
- " -e,--export-db export the content of the udev database\n"
- " -c,--cleanup-db cleanup the udev database\n"
- " --version print version of the program\n"
- " -h,--help print this message\n";
-
enum action_type {
ACTION_QUERY,
ACTION_ATTRIBUTE_WALK,
@@ -388,7 +392,7 @@ static int uinfo(struct udev *udev, int argc, char *argv[]) {
printf("%s\n", VERSION);
return 0;
case 'h':
- printf("%s\n", usage);
+ help();
return 0;
default:
return 1;
@@ -398,7 +402,7 @@ static int uinfo(struct udev *udev, int argc, char *argv[]) {
case ACTION_QUERY:
if (!device) {
if (!argv[optind]) {
- fprintf(stderr, "%s\n", usage);
+ help();
return 2;
}
device = find_device(udev, argv[optind], NULL);
@@ -489,5 +493,5 @@ static int uinfo(struct udev *udev, int argc, char *argv[]) {
const struct udevadm_cmd udevadm_info = {
.name = "info",
.cmd = uinfo,
- .help = "query sysfs or the udev database",
+ .help = "Query sysfs or the udev database",
};