udevadm-trigger: add parameters checking

[elogind.git] / src / udev / udevadm-trigger.c

diff --git a/src/udev/udevadm-trigger.c b/src/udev/udevadm-trigger.c
index 4d96a786c3950b92517b12b8724274928dc06535..d10ca59cca82333d0142e20be4f565f101510e16 100644 (file)
--- a/src/udev/udevadm-trigger.c
+++ b/src/udev/udevadm-trigger.c
@@ -32,6 +32,7 @@
 #include <sys/un.h>
 
 #include "udev.h"
+#include "util.h"
 
 static int verbose;
 static int dry_run;
@@ -111,8 +112,14 @@ static int adm_trigger(struct udev *udev, int argc, char *argv[])
                 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)
+                if (option == -1) {
+                        if (optind < argc) {
+                                fprintf(stderr, "Extraneous argument: '%s'\n", argv[optind]);
+                                rc = 1;
+                                goto exit;
+                        }
                         break;
+                }
 
                 switch (option) {
                 case 'v':
@@ -122,9 +129,9 @@ static int adm_trigger(struct udev *udev, int argc, char *argv[])
                         dry_run = 1;
                         break;
                 case 't':
-                        if (strcmp(optarg, "devices") == 0) {
+                        if (streq(optarg, "devices")) {
                                 device_type = TYPE_DEVICES;
-                        } else if (strcmp(optarg, "subsystems") == 0) {
+                        } else if (streq(optarg, "subsystems")) {
                                 device_type = TYPE_SUBSYSTEMS;
                         } else {
                                 log_error("unknown type --type=%s\n", optarg);
@@ -133,7 +140,13 @@ static int adm_trigger(struct udev *udev, int argc, char *argv[])
                         }
                         break;
                 case 'c':
-                        action = optarg;
+                        if (!nulstr_contains("add\0" "remove\0" "change\0", optarg)) {
+                                log_error("unknown action '%s'\n", optarg);
+                                rc = 2;
+                                goto exit;
+                        } else {
+                                action = optarg;
+                        }
                         break;
                 case 's':
                         udev_enumerate_add_match_subsystem(udev_enumerate, optarg);
@@ -214,7 +227,7 @@ static int adm_trigger(struct udev *udev, int argc, char *argv[])
                 exec_list(udev_enumerate, action);
                 goto exit;
         default:
-                goto exit;
+                assert_not_reached("device_type");
         }
 exit:
         udev_enumerate_unref(udev_enumerate);