Making note of my changes

[oweals/busybox.git] / cat.c

diff --git a/cat.c b/cat.c
index 0f2460eb7a6da6bcd62856f0dd7dca8c710d1240..0d32efe84958913481df5715a64029a954aa3095 100644 (file)
--- a/cat.c
+++ b/cat.c
@@ -1,7 +1,8 @@
 /*
  * Mini Cat implementation for busybox
  *
- * Copyright (C) 1998 by Erik Andersen <andersee@debian.org>
+ * Copyright (C) 1999 by Lineo, inc.
+ * Written by Erik Andersen <andersen@lineo.com>, <andersee@debian.org>
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -22,33 +23,37 @@
 #include "internal.h"
 #include <stdio.h>
 
-const char cat_usage[] = "[file ...]";
 
-extern int cat_more_main(int argc, char **argv)
+static void print_file( FILE *file) 
 {
     int c;
-    FILE *file = stdin;
+    while ((c = getc(file)) != EOF)
+       putc(c, stdout);
+    fclose(file);
+    fflush(stdout);
+}
+
+extern int cat_main(int argc, char **argv)
+{
+    FILE *file;
 
-    if (argc < 2) {
-       fprintf(stderr, "Usage: %s %s", *argv, cat_usage);
-       return(FALSE);
+    if (argc==1) {
+       print_file( stdin);
+       exit( TRUE);
+    }
+
+    if ( **(argv+1) == '-' ) {
+       usage ("cat [file ...]\n");
     }
     argc--;
-    argv++;
 
-    while (argc-- > 0) {
+    while (argc-- > 0 && *(argv++) != '\0' && strlen(*argv) ) {
        file = fopen(*argv, "r");
        if (file == NULL) {
            perror(*argv);
-           return(FALSE);
+           exit(FALSE);
        }
-       while ((c = getc(file)) != EOF)
-           putc(c, stdout);
-       fclose(file);
-       fflush(stdout);
-
-       argc--;
-       argv++;
+       print_file( file);
     }
-    return(TRUE);
+    exit(TRUE);
 }