add cmdline options

torrent-stats.c

@@ -20,6 +20,8 @@
 #include <stdlib.h>
 #include <unistd.h>
 
+#include <getopt.h>
+
 #include "configfile.h"
 #include "connection.h"
 #include "event.h"
@@ -29,6 +31,14 @@
 #include "sockaddr.h"
 #include "tcpsocket.h"
 
+#define DEFAULT_CONFIG "torrent-stats.conf"
+
+static struct option opts[] = {
+	{"config",	1, 0, 'c'},
+	{"help",	0, 0, 'h'},
+	{0, 0, 0, 0}
+};
+
 static int listen_cb(const char *parameter, void *privdata)
 {
 	struct sockaddr_in addr;
@@ -51,8 +61,37 @@ static int listen_cb(const char *parameter, void *privdata)
 
 int main(int argc, char *argv[])
 {
-	if (config_parse("torrent-stats.conf") < 0)
-		return 1;
+	char *config = DEFAULT_CONFIG;
+	int code, arg = 0;
+
+	do {
+		code = getopt_long(argc, argv, "c:h", opts, &arg);
+
+		switch (code) {
+		case 'c':	/* config */
+				config = optarg;
+				break;
+
+		case 'h':	/* help */
+				printf("Usage: torrent-stats [options]\n"
+					"Options: \n"
+					"  --config       -c  configfile  use this configfile\n"
+					"  --help         -h              this help\n"
+					"\n");
+				exit(0);
+				break;
+
+		case '?':	/* error */
+				exit(1);
+				break;
+
+		default:	/* unknown / all options parsed */
+				break;
+		}
+	} while (code != -1);
+
+	if (config_parse(config) < 0)
+		exit(1);
 
 	config_get_strings("global", "listen", listen_cb, ctcs_accept_handler);
 	config_get_strings("global", "listen-http", listen_cb, httpd_accept_handler);