build/padcat.c

   1 #include <stdio.h>
   2 #include <stdlib.h>
   3 #include <string.h>
   4 #include <assert.h>
   5
   6 void cat(char *fn)
   7 {
   8         FILE *f;
   9         char buf[80];
  10         size_t n;
  11
  12         f = fopen(fn, "rb");
  13         if (!f) {
  14                 fprintf(stderr, "Could not open file \"%s\".\n",
  15                         fn);
  16                 exit(1);
  17         }
  18
  19         do {
  20                 memset(buf, 0, 80);
  21                 n = fread(buf, 1, 80, f);
  22                 if (n)
  23                         assert(fwrite(buf, 1, 80, stdout) == 80);
  24         } while(n == 80);
  25
  26         fclose(f);
  27 }
  28
  29 int main(int argc, char **argv)
  30 {
  31         int i;
  32
  33         for(i=1; i<argc; i++)
  34                 cat(argv[i]);
  35
  36         return 0;
  37 }