LXR qemu/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/osdep.h"
  17#include "qemu-common.h"
  18
  19void qemu_hexdump(const char *buf, FILE *fp, const char *prefix, size_t size)
  20{
  21    unsigned int b, len, i, c;
  22
  23    for (b = 0; b < size; b += 16) {
  24        len = size - b;
  25        if (len > 16) {
  26            len = 16;
  27        }
  28        fprintf(fp, "%s: %04x:", prefix, b);
  29        for (i = 0; i < 16; i++) {
  30            if ((i % 4) == 0) {
  31                fprintf(fp, " ");
  32            }
  33            if (i < len) {
  34                fprintf(fp, " %02x", (unsigned char)buf[b + i]);
  35            } else {
  36                fprintf(fp, "   ");
  37            }
  38        }
  39        fprintf(fp, " ");
  40        for (i = 0; i < len; i++) {
  41            c = buf[b + i];
  42            if (c < ' ' || c > '~') {
  43                c = '.';
  44            }
  45            fprintf(fp, "%c", c);
  46        }
  47        fprintf(fp, "\n");
  48    }
  49}
  50