xemu/util/hexdump.c
Peter Crosthwaite 6ff66f50f0 iov: Factor out hexdumper
Factor out the hexdumper functionality from iov for all to use. Useful for
creating verbose debug printfery that dumps packet data.

Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Message-id: faaac219c55ea586d3f748befaf5a2788fd271b8.1361853677.git.peter.crosthwaite@xilinx.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2013-03-15 16:41:58 +00:00

38 lines
997 B
C

/*
* Helper to hexdump a buffer
*
* Copyright (c) 2013 Red Hat, Inc.
* Copyright (c) 2013 Gerd Hoffmann <kraxel@redhat.com>
* Copyright (c) 2013 Peter Crosthwaite <peter.crosthwaite@xilinx.com>
* Copyright (c) 2013 Xilinx, Inc
*
* This work is licensed under the terms of the GNU GPL, version 2. See
* the COPYING file in the top-level directory.
*
* Contributions after 2012-01-13 are licensed under the terms of the
* GNU GPL, version 2 or (at your option) any later version.
*/
#include "qemu-common.h"
void hexdump(const char *buf, FILE *fp, const char *prefix, size_t size)
{
unsigned int b;
for (b = 0; b < size; b++) {
if ((b % 16) == 0) {
fprintf(fp, "%s: %04x:", prefix, b);
}
if ((b % 4) == 0) {
fprintf(fp, " ");
}
fprintf(fp, " %02x", (unsigned char)buf[b]);
if ((b % 16) == 15) {
fprintf(fp, "\n");
}
}
if ((b % 16) != 0) {
fprintf(fp, "\n");
}
}