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Diffstat (limited to 'src/udev/udevadm-trigger.c')
-rw-r--r--src/udev/udevadm-trigger.c125
1 files changed, 65 insertions, 60 deletions
diff --git a/src/udev/udevadm-trigger.c b/src/udev/udevadm-trigger.c
index f472996965..087ee4bfae 100644
--- a/src/udev/udevadm-trigger.c
+++ b/src/udev/udevadm-trigger.c
@@ -32,6 +32,8 @@
#include <sys/un.h>
#include "udev.h"
+#include "udev-util.h"
+#include "util.h"
static int verbose;
static int dry_run;
@@ -53,7 +55,7 @@ static void exec_list(struct udev_enumerate *udev_enumerate, const char *action)
if (fd < 0)
continue;
if (write(fd, action, strlen(action)) < 0)
- log_debug("error writing '%s' to '%s': %m\n", action, filename);
+ log_debug("error writing '%s' to '%s': %m", action, filename);
close(fd);
}
}
@@ -72,22 +74,41 @@ static const char *keyval(const char *str, const char **val, char *buf, size_t s
return buf;
}
+static void help(void) {
+ printf("Usage: udevadm trigger OPTIONS\n"
+ " -v,--verbose print the list of devices while running\n"
+ " -n,--dry-run do not actually trigger the events\n"
+ " -t,--type= type of events to trigger\n"
+ " devices sys devices (default)\n"
+ " subsystems sys subsystems and drivers\n"
+ " -c,--action=<action> event action value, default is \"change\"\n"
+ " -s,--subsystem-match=<subsystem> trigger devices from a matching subsystem\n"
+ " -S,--subsystem-nomatch=<subsystem> exclude devices from a matching subsystem\n"
+ " -a,--attr-match=<file[=<value>]> trigger devices with a matching attribute\n"
+ " -A,--attr-nomatch=<file[=<value>]> exclude devices with a matching attribute\n"
+ " -p,--property-match=<key>=<value> trigger devices with a matching property\n"
+ " -g,--tag-match=<key>=<value> trigger devices with a matching property\n"
+ " -y,--sysname-match=<name> trigger devices with a matching name\n"
+ " -b,--parent-match=<name> trigger devices with that parent device\n"
+ " -h,--help\n\n");
+}
+
static int adm_trigger(struct udev *udev, int argc, char *argv[])
{
static const struct option options[] = {
- { "verbose", no_argument, NULL, 'v' },
- { "dry-run", no_argument, NULL, 'n' },
- { "type", required_argument, NULL, 't' },
- { "action", required_argument, NULL, 'c' },
- { "subsystem-match", required_argument, NULL, 's' },
+ { "verbose", no_argument, NULL, 'v' },
+ { "dry-run", no_argument, NULL, 'n' },
+ { "type", required_argument, NULL, 't' },
+ { "action", required_argument, NULL, 'c' },
+ { "subsystem-match", required_argument, NULL, 's' },
{ "subsystem-nomatch", required_argument, NULL, 'S' },
- { "attr-match", required_argument, NULL, 'a' },
- { "attr-nomatch", required_argument, NULL, 'A' },
- { "property-match", required_argument, NULL, 'p' },
- { "tag-match", required_argument, NULL, 'g' },
- { "sysname-match", required_argument, NULL, 'y' },
- { "parent-match", required_argument, NULL, 'b' },
- { "help", no_argument, NULL, 'h' },
+ { "attr-match", required_argument, NULL, 'a' },
+ { "attr-nomatch", required_argument, NULL, 'A' },
+ { "property-match", required_argument, NULL, 'p' },
+ { "tag-match", required_argument, NULL, 'g' },
+ { "sysname-match", required_argument, NULL, 'y' },
+ { "parent-match", required_argument, NULL, 'b' },
+ { "help", no_argument, NULL, 'h' },
{}
};
enum {
@@ -95,26 +116,19 @@ static int adm_trigger(struct udev *udev, int argc, char *argv[])
TYPE_SUBSYSTEMS,
} device_type = TYPE_DEVICES;
const char *action = "change";
- struct udev_enumerate *udev_enumerate;
- int rc = 0;
+ _cleanup_udev_enumerate_unref_ struct udev_enumerate *udev_enumerate = NULL;
+ int c;
udev_enumerate = udev_enumerate_new(udev);
- if (udev_enumerate == NULL) {
- rc = 1;
- goto exit;
- }
+ if (udev_enumerate == NULL)
+ return 1;
- for (;;) {
- int option;
+ while ((c = getopt_long(argc, argv, "vno:t:c:s:S:a:A:p:g:y:b:h", options, NULL)) >= 0) {
const char *key;
const char *val;
char buf[UTIL_PATH_SIZE];
- option = getopt_long(argc, argv, "vng:o:t:hc:p:s:S:a:A:y:b:", options, NULL);
- if (option == -1)
- break;
-
- switch (option) {
+ switch (c) {
case 'v':
verbose = 1;
break;
@@ -122,18 +136,22 @@ static int adm_trigger(struct udev *udev, int argc, char *argv[])
dry_run = 1;
break;
case 't':
- if (streq(optarg, "devices")) {
+ if (streq(optarg, "devices"))
device_type = TYPE_DEVICES;
- } else if (streq(optarg, "subsystems")) {
+ else if (streq(optarg, "subsystems"))
device_type = TYPE_SUBSYSTEMS;
- } else {
- log_error("unknown type --type=%s\n", optarg);
- rc = 2;
- goto exit;
+ else {
+ log_error("unknown type --type=%s", optarg);
+ return 2;
}
break;
case 'c':
- action = optarg;
+ if (!nulstr_contains("add\0" "remove\0" "change\0", optarg)) {
+ log_error("unknown action '%s'", optarg);
+ return 2;
+ } else
+ action = optarg;
+
break;
case 's':
udev_enumerate_add_match_subsystem(udev_enumerate, optarg);
@@ -171,9 +189,8 @@ static int adm_trigger(struct udev *udev, int argc, char *argv[])
util_remove_trailing_chars(path, '/');
dev = udev_device_new_from_syspath(udev, path);
if (dev == NULL) {
- log_error("unable to open the device '%s'\n", optarg);
- rc = 2;
- goto exit;
+ log_error("unable to open the device '%s'", optarg);
+ return 2;
}
udev_enumerate_add_match_parent(udev_enumerate, dev);
/* drop reference immediately, enumerate pins the device as long as needed */
@@ -181,44 +198,32 @@ static int adm_trigger(struct udev *udev, int argc, char *argv[])
break;
}
case 'h':
- printf("Usage: udevadm trigger OPTIONS\n"
- " --verbose print the list of devices while running\n"
- " --dry-run do not actually trigger the events\n"
- " --type= type of events to trigger\n"
- " devices sys devices (default)\n"
- " subsystems sys subsystems and drivers\n"
- " --action=<action> event action value, default is \"change\"\n"
- " --subsystem-match=<subsystem> trigger devices from a matching subsystem\n"
- " --subsystem-nomatch=<subsystem> exclude devices from a matching subsystem\n"
- " --attr-match=<file[=<value>]> trigger devices with a matching attribute\n"
- " --attr-nomatch=<file[=<value>]> exclude devices with a matching attribute\n"
- " --property-match=<key>=<value> trigger devices with a matching property\n"
- " --tag-match=<key>=<value> trigger devices with a matching property\n"
- " --sysname-match=<name> trigger devices with a matching name\n"
- " --parent-match=<name> trigger devices with that parent device\n"
- " --help\n\n");
- goto exit;
+ help();
+ return 0;
+ case '?':
+ return 1;
default:
- rc = 1;
- goto exit;
+ assert_not_reached("Unknown option");
}
}
+ if (optind < argc) {
+ fprintf(stderr, "Extraneous argument: '%s'\n", argv[optind]);
+ return 1;
+ }
+
switch (device_type) {
case TYPE_SUBSYSTEMS:
udev_enumerate_scan_subsystems(udev_enumerate);
exec_list(udev_enumerate, action);
- goto exit;
+ return 0;
case TYPE_DEVICES:
udev_enumerate_scan_devices(udev_enumerate);
exec_list(udev_enumerate, action);
- goto exit;
+ return 0;
default:
assert_not_reached("device_type");
}
-exit:
- udev_enumerate_unref(udev_enumerate);
- return rc;
}
const struct udevadm_cmd udevadm_trigger = {
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-11-28 11:58:55 +0000