From: Mart Lubbers <mart@martlubbers.net>
Date: Wed, 14 Dec 2016 11:39:35 +0000 (+0100)
Subject: add tracinc
X-Git-Url: https://git.martlubbers.net/?a=commitdiff_plain;h=340daaadd4e458ba3fd8d83bb765cb790381d69f;p=mTask.git

add tracinc
---

diff --git a/int/int.c b/int/int.c
index 9d6fde3..37859cc 100644
--- a/int/int.c
+++ b/int/int.c
@@ -12,8 +12,6 @@
 
 #include "mTaskSymbols.h"
 
-#define PORT 8123
-
 #define MAXTASKS 5
 #define MAXTASKSIZE 1024
 #define MAXSDS 50
@@ -44,6 +42,7 @@ struct task {
 struct task tasks[MAXTASKS] = {0};
 int sock_fd = -1;
 int fd = -1;
+int port = 8123;
 
 void killHandler(int i)
 {
@@ -246,7 +245,7 @@ void open_filedescriptors()
 	bzero((char *) &sa, sizeof(sa));
 	sa.sin_family = AF_INET;
 	sa.sin_addr.s_addr = INADDR_ANY;
-	sa.sin_port = htons(PORT);
+	sa.sin_port = htons(port);
 
 	if((sock_fd = socket(AF_INET, SOCK_STREAM, 0)) == -1)
 		pdie("socket");
@@ -255,13 +254,22 @@ void open_filedescriptors()
 	if(listen(sock_fd, 10) == -1)
 		pdie("bind\n");
 
-	printf("Listening on %d\n", PORT);
+	printf("Listening on %d\n", port);
 	fflush(stdout);
 	if((fd = accept(sock_fd, (struct sockaddr*)NULL, NULL)) == -1)
 		pdie("accept");
 }
 
-int main(void)
+void usage(FILE *o, char *arg0){
+	fprintf(o,
+		"Usage: %s [opts]\n"
+		"\n"
+		"Options\n"
+		"-p PORT  Custom port number, default: 8123\n"
+		, arg0);
+}
+
+int main(int argc, char *argv[])
 {
 	int ct;
 
@@ -273,6 +281,25 @@ int main(void)
 		die("Couldn't register signal handler...\n");
 	}
 
+	//Command line arguments
+	int opt;
+	while((opt = getopt(argc, argv, "hp:")) != -1){
+		switch(opt){
+			case 'p':
+				port = atoi(optarg);
+				if(port < 1)
+					die("Port numbers are > 1\n");
+				break;
+			case 'h':
+				usage(stdout, argv[0]);
+				exit(EXIT_SUCCESS);
+			default:
+				usage(stderr, argv[0]);
+				exit(EXIT_FAILURE);
+		}
+
+	}
+
 	open_filedescriptors();
 
 	while(true){