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bbb169080f
Dumping one line of hexadecimal/ASCII from a buffer is often needed. Move this part from qemu_hexdump() and use it Acked-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Laurent Vivier <lvivier@redhat.com> Message-Id: <20200925091055.186023-2-lvivier@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
66 lines
1.7 KiB
C
66 lines
1.7 KiB
C
/*
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* Helper to hexdump a buffer
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*
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* Copyright (c) 2013 Red Hat, Inc.
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* Copyright (c) 2013 Gerd Hoffmann <kraxel@redhat.com>
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* Copyright (c) 2013 Peter Crosthwaite <peter.crosthwaite@xilinx.com>
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* Copyright (c) 2013 Xilinx, Inc
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*
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* This work is licensed under the terms of the GNU GPL, version 2. See
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* the COPYING file in the top-level directory.
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*
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* Contributions after 2012-01-13 are licensed under the terms of the
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* GNU GPL, version 2 or (at your option) any later version.
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*/
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#include "qemu/osdep.h"
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#include "qemu-common.h"
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void qemu_hexdump_line(char *line, unsigned int b, const void *bufptr,
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unsigned int len, bool ascii)
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{
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const char *buf = bufptr;
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int i, c;
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if (len > QEMU_HEXDUMP_LINE_BYTES) {
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len = QEMU_HEXDUMP_LINE_BYTES;
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}
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line += snprintf(line, 6, "%04x:", b);
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for (i = 0; i < QEMU_HEXDUMP_LINE_BYTES; i++) {
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if ((i % 4) == 0) {
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*line++ = ' ';
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}
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if (i < len) {
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line += sprintf(line, " %02x", (unsigned char)buf[b + i]);
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} else {
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line += sprintf(line, " ");
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}
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}
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if (ascii) {
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*line++ = ' ';
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for (i = 0; i < len; i++) {
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c = buf[b + i];
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if (c < ' ' || c > '~') {
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c = '.';
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}
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*line++ = c;
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}
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}
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*line = '\0';
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}
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void qemu_hexdump(FILE *fp, const char *prefix,
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const void *bufptr, size_t size)
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{
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unsigned int b, len;
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char line[QEMU_HEXDUMP_LINE_LEN];
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for (b = 0; b < size; b += QEMU_HEXDUMP_LINE_BYTES) {
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len = size - b;
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qemu_hexdump_line(line, b, bufptr, len, true);
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fprintf(fp, "%s: %s\n", prefix, line);
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}
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}
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