util/hexdump.c

   1 /*
   2  * Helper to hexdump a buffer
   3  *
   4  * Copyright (c) 2013 Red Hat, Inc.
   5  * Copyright (c) 2013 Gerd Hoffmann <kraxel@redhat.com>
   6  * Copyright (c) 2013 Peter Crosthwaite <peter.crosthwaite@xilinx.com>
   7  * Copyright (c) 2013 Xilinx, Inc
   8  *
   9  * This work is licensed under the terms of the GNU GPL, version 2.  See
  10  * the COPYING file in the top-level directory.
  11  *
  12  * Contributions after 2012-01-13 are licensed under the terms of the
  13  * GNU GPL, version 2 or (at your option) any later version.
  14  */
  15
  16 #include "qemu-common.h"
  17
  18 void hexdump(const char *buf, FILE *fp, const char *prefix, size_t size)
  19 {
  20     unsigned int b;
  21
  22     for (b = 0; b < size; b++) {
  23         if ((b % 16) == 0) {
  24             fprintf(fp, "%s: %04x:", prefix, b);
  25         }
  26         if ((b % 4) == 0) {
  27             fprintf(fp, " ");
  28         }
  29         fprintf(fp, " %02x", (unsigned char)buf[b]);
  30         if ((b % 16) == 15) {
  31             fprintf(fp, "\n");
  32         }
  33     }
  34     if ((b % 16) != 0) {
  35         fprintf(fp, "\n");
  36     }
  37 }