hex.h

   1 #include <stdio.h>
   2
   3 static const char hext[] = "0123456789ABCDEF";
   4 static void printhex(const unsigned char *z,size_t l)
   5 {
   6         printf("[");
   7         for (size_t i = 0;i < l;++i) {
   8                 printf("%c%c",hext[*z >> 4],hext[*z & 0xF]);
   9                 ++z;
  10         }
  11         printf("]\n");
  12 }
  13
  14 static void printbin(const unsigned char *z,size_t l)
  15 {
  16         printf("[");
  17         for (size_t i = 0;i < l;++i) {
  18                 printf("%c%c%c%c%c%c%c%c",
  19                         hext[(*z >> 7) & 1],
  20                         hext[(*z >> 6) & 1],
  21                         hext[(*z >> 5) & 1],
  22                         hext[(*z >> 4) & 1],
  23                         hext[(*z >> 3) & 1],
  24                         hext[(*z >> 2) & 1],
  25                         hext[(*z >> 1) & 1],
  26                         hext[(*z     ) & 1]);
  27                 ++z;
  28         }
  29         printf("]\n");
  30 }