com32/modules/cat.c

   1 #include <stdio.h>
   2 #include <stdlib.h>
   3 #include <console.h>
   4
   5 int main(int argc, char *argv[])
   6 {
   7     FILE *f;
   8     int i;
   9     int len;
  10     char buf[4096];
  11
  12     openconsole(&dev_stdcon_r, &dev_stdcon_w);
  13
  14     if (argc < 2) {
  15         fprintf(stderr, "Usage: %s filename...\n", argv[0]);
  16         return 1;
  17     }
  18
  19     for (i = 1; i < argc; i++) {
  20         f = fopen(argv[i], "r");
  21         if (!f) {
  22             fprintf(stderr, "%s: %s: file not found\n", argv[0], argv[i]);
  23             return 1;
  24         }
  25
  26         while ((len = fread(buf, 1, sizeof buf, f)) > 0)
  27             fwrite(buf, 1, len, stdout);
  28
  29         fclose(f);
  30     }
  31
  32     return 0;
  33 }