--- a/numerierung.c
+++ b/numerierung.c
@@ -10,13 +10,13 @@
 
 void usage (char *cmd)
 {
-    printf ("Usage: %s [-h] [-t] [-v] [file]\n", cmd);
+    printf ("Usage: %s [-h|-p] [<file>]\n", cmd);
     exit (0);
 }
 
 int main (int argc, char **argv)
 {
-    char buffer[81];
+    char buffer[240];
 
     int counter = 0;
 
@@ -24,8 +24,12 @@
 
     int c, pure = 0;
 
-    while ((c = getopt (argc, argv, "hp")) != -1) {
-        printf ("Zeichen: %c\n", c);
+    struct option options[] = {
+        {"help", 0, 0, 'h'},
+        {"pure", 0, 0, 'p'},
+    };
+
+    while ((c = getopt_long_only (argc, argv, "hp", options, NULL)) != -1) {
         switch (c) {
         case 'h':
             usage (argv[0]);
@@ -36,7 +40,6 @@
         default:
             printf ("Unknown Parameter: %s\n", argv[optind]);
         }
-        printf ("GETOPT: %d : %s\n", optind, argv[optind]);
     }
 
     if (optind == argc)
@@ -51,7 +54,7 @@
 
     *buffer = 0;
 
-    while (fgets (buffer, 80, f) != NULL) {
+    while (fgets (buffer, sizeof (buffer), f) != NULL) {
         if (!pure)
             printf ("%4.4d: %s", counter++, buffer);
         else