Added basic argument parsing and better Makefile

1 files changed, 42 insertions, 1 deletions

diff --git a/main.c b/main.c
index 51bcdb6..4fc3d1a 100644
--- a/main.c
+++ b/main.c
@@ -1,7 +1,48 @@
 #include <stdio.h>
+#include <stdlib.h>
+#include <stdarg.h>
+#include <getopt.h>
+
+void help(const char *argv0) {
+	printf("Usage: %s [options]\n"
+			"\nAvailable options:\n"
+			"  -h,--help                  this help\n"
+			"  -v,--version               show version\n"
+			"  -p,--port=client:port      device port\n",
+			argv0);
+}
 
 int main(int argc, char *argv[]) {
-	fprintf(stdout, "Oh, hi Mark!\n");
+	const char short_options[] = "hvlp";
+	const struct option long_options[] = {
+		{"help", 0, NULL, 'h'},
+		{"version", 0, NULL, 'v'},
+		{"list", 0, NULL, 'l'},
+		{"port", 1, NULL, 'p'},
+		{0},
+	};
+
+	int c;
+	while ((c = getopt_long(argc, argv, short_options, long_options, NULL)) != -1) {
+		switch (c) {
+			case 'h':
+				help(argv[0]);
+				return 0;
+			case 'v':
+				fprintf(stdout, "Version\n");
+				return 0;
+			case 'l':
+				fprintf(stdout, "List\n");
+				return 0;
+			case 'p':
+				fprintf(stdout, "Port\n");
+				return 0;
+			default:
+				fprintf(stdout, "No option provided\n");
+				return 0;
+		}
+	}
+
 	return 0;
 }