t/helper/test-hexdump.c

   1 #include "test-tool.h"
   2 #include "git-compat-util.h"
   3
   4 /*
   5  * Read stdin and print a hexdump to stdout.
   6  */
   7 int cmd__hexdump(int argc UNUSED, const char **argv UNUSED)
   8 {
   9         char buf[1024];
  10         ssize_t i, len;
  11         int have_data = 0;
  12
  13         for (;;) {
  14                 len = xread(0, buf, sizeof(buf));
  15                 if (len < 0)
  16                         die_errno("failure reading stdin");
  17                 if (!len)
  18                         break;
  19
  20                 have_data = 1;
  21
  22                 for (i = 0; i < len; i++)
  23                         printf("%02x ", (unsigned char)buf[i]);
  24         }
  25
  26         if (have_data)
  27                 putchar('\n');
  28
  29         return 0;
  30 }