You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
58 lines
2.1 KiB
58 lines
2.1 KiB
/* |
|
* Make a hexquoted copy of a string |
|
* |
|
* Copyright (c) 2016 Dmitry V. Levin <ldv@altlinux.org> |
|
* All rights reserved. |
|
* |
|
* Redistribution and use in source and binary forms, with or without |
|
* modification, are permitted provided that the following conditions |
|
* are met: |
|
* 1. Redistributions of source code must retain the above copyright |
|
* notice, this list of conditions and the following disclaimer. |
|
* 2. Redistributions in binary form must reproduce the above copyright |
|
* notice, this list of conditions and the following disclaimer in the |
|
* documentation and/or other materials provided with the distribution. |
|
* 3. The name of the author may not be used to endorse or promote products |
|
* derived from this software without specific prior written permission. |
|
* |
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
|
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
|
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
|
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
|
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
|
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
|
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
|
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
|
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
|
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
|
*/ |
|
|
|
#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; |
|
}
|
|
|