Not worth implementing my own parser for those 3 options

kiwmi/main.c

@@ -9,6 +9,7 @@
 #include <stdlib.h>
 #include <string.h>
 
+#include <getopt.h>
 #include <limits.h>
 
 #include <wayland-server.h>
@@ -16,26 +17,11 @@
 
 #include "kiwmi/server.h"
 
-struct kiwmi_config {
-    int verbosity;
-    const char *frontend_path;
-};
-
-struct option {
-    const char *name;
-    int val;
-};
-
-static void
-parse_arguments(int argc, char **argv, struct kiwmi_config *config)
+int
+main(int argc, char **argv)
 {
-    static struct option options[] = {
-        {"help", 'h'},
-        {"version", 'v'},
-        {"verbose", 'V'},
-
-        {0, 0},
-    };
+    int verbosity             = 0;
+    const char *frontend_path = NULL;
 
     const char *usage =
         "Usage: kiwmi [options] FRONTEND\n"
@@ -44,27 +30,9 @@ parse_arguments(int argc, char **argv, struct kiwmi_config *config)
         "  -v, --version  Show version number and quit\n"
         "  -V, --verbose  Increase verbosity Level\n";
 
-    config->verbosity     = 0;
-    config->frontend_path = NULL;
-
-    for (int i = 1; i < argc; ++i) {
-        const char *opt = argv[i];
-        char val        = '?';
-
-        if (opt[0] == '-') {
-            if (opt[1] == '-') {
-                for (const struct option *current = options; current->name;
-                     ++current) {
-                    if (strcmp(&opt[2], current->name)) {
-                        val = current->val;
-                        break;
-                    }
-                }
-            } else {
-                val = opt[1];
-            }
-
-            switch (val) {
+    int option;
+    while ((option = getopt(argc, argv, "hvV")) != -1) {
+        switch (option) {
         case 'h':
             printf("%s", usage);
             exit(EXIT_SUCCESS);
@@ -74,31 +42,23 @@ parse_arguments(int argc, char **argv, struct kiwmi_config *config)
             exit(EXIT_SUCCESS);
             break;
         case 'V':
-                ++config->verbosity;
+            ++verbosity;
             break;
         default:
             fprintf(stderr, "%s", usage);
             exit(EXIT_FAILURE);
         }
-        } else {
-            config->frontend_path = opt;
-            break;
-        }
     }
 
-    if (!config->frontend_path) {
+    // no frontend passsed
+    if (optind >= argc) {
         fprintf(stderr, "%s", usage);
         exit(EXIT_FAILURE);
     }
-}
 
-int
-main(int argc, char **argv)
-{
-    struct kiwmi_config config;
-    parse_arguments(argc, argv, &config);
+    frontend_path = argv[optind];
 
-    switch (config.verbosity) {
+    switch (verbosity) {
     case 0:
         wlr_log_init(WLR_ERROR, NULL);
         break;