From 7425fc37a5f57c2dcc932b3d631d627c427f8446 Mon Sep 17 00:00:00 2001
From: Stefan 'psYchotic' Zwanenburg <stefanhetzwaantje@gmail.com>
Date: Mon, 25 Jan 2010 02:56:52 +0100
Subject: [PATCH] Added GNU getopt support. The current recognized options are:
  - p <prompt>     To set the prompt string  - h     To show how to use the
 program

---
 ss.c | 43 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 43 insertions(+)

diff --git a/ss.c b/ss.c
index e69de29..c92fbcc 100644
--- a/ss.c
+++ b/ss.c
@@ -0,0 +1,43 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+void print_usage(char *progname) {
+    printf("Usage: %s [OPTIONS]\n", progname);
+    printf("  Options:\n");
+    printf("    -p <prompt>     The prompt to be displayed\n");
+    printf("    -h              Display this help\n");
+}
+
+int main(int argc, char **argv) {
+    char *prompt = "ss> ";
+    char option;
+    while ((option = getopt(argc, argv, ":hp:")) != -1) {
+        switch(option) {
+            case 'h':
+                print_usage(argv[0]);
+                exit(EXIT_SUCCESS);
+                break;
+            case 'p':
+                prompt = optarg;
+                break;
+            case ':':
+                printf("Missing argument for option '%c'.\n", optopt);
+                print_usage(argv[0]);
+                exit(EXIT_FAILURE);
+                break;
+            case '?':
+                printf("Unknown option '%c'.\n", optopt);
+                print_usage(argv[0]);
+                exit(EXIT_FAILURE);
+            default:
+                print_usage(argv[0]);
+                exit(EXIT_SUCCESS);
+                break;
+        }
+    }
+
+    printf("%s\n", prompt);
+
+    return 0;
+}
-- 
2.11.4.GIT