Dmitry V. Levin
c6782f144a
strace test suite is now provided under the terms of the GNU General Public License version 2 or later, see tests/COPYING for more details.
39 lines
748 B
C
39 lines
748 B
C
/*
|
|
* Make a hexquoted copy of a string
|
|
*
|
|
* Copyright (c) 2016 Dmitry V. Levin <ldv@altlinux.org>
|
|
* All rights reserved.
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0-or-later
|
|
*/
|
|
|
|
#include "tests.h"
|
|
|
|
#include <assert.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
|
|
const char *
|
|
hexquote_strndup(const char *src, const size_t src_len)
|
|
{
|
|
const size_t dst_size = 4 * src_len + 1;
|
|
assert(dst_size > src_len);
|
|
|
|
char *dst = malloc(dst_size);
|
|
if (!dst)
|
|
perror_msg_and_fail("malloc(%zu)", dst_size);
|
|
|
|
char *p = dst;
|
|
size_t i;
|
|
for (i = 0; i < src_len; ++i) {
|
|
unsigned int c = ((const unsigned char *) src)[i];
|
|
*(p++) = '\\';
|
|
*(p++) = 'x';
|
|
*(p++) = "0123456789abcdef"[c >> 4];
|
|
*(p++) = "0123456789abcdef"[c & 0xf];
|
|
}
|
|
*p = '\0';
|
|
|
|
return dst;
|
|
}
|