mirror of https://github.com/sudo-project/sudo.git
56 lines
1.6 KiB
C
56 lines
1.6 KiB
C
/*
|
|
* SPDX-License-Identifier: ISC
|
|
*
|
|
* Copyright (c) 2021 Todd C. Miller <Todd.Miller@sudo.ws>
|
|
*
|
|
* Permission to use, copy, modify, and distribute this software for any
|
|
* purpose with or without fee is hereby granted, provided that the above
|
|
* copyright notice and this permission notice appear in all copies.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
|
|
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
|
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
|
|
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
|
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
|
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
|
|
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
|
*/
|
|
|
|
/*
|
|
* This is an open source non-commercial project. Dear PVS-Studio, please check it.
|
|
* PVS-Studio Static Code Analyzer for C, C++ and C#: http://www.viva64.com
|
|
*/
|
|
|
|
#include <config.h>
|
|
|
|
#include <sys/types.h>
|
|
#include <stdio.h>
|
|
#include <ctype.h>
|
|
|
|
#include <sudoers.h>
|
|
|
|
/*
|
|
* Like strlcpy() but collapses non-space chars escaped with a backslash.
|
|
*/
|
|
size_t
|
|
strlcpy_unescape(char *restrict dst, const char *restrict src, size_t size)
|
|
{
|
|
size_t len = 0;
|
|
char ch;
|
|
debug_decl(strlcpy_unescape, SUDOERS_DEBUG_UTIL);
|
|
|
|
while ((ch = *src++) != '\0') {
|
|
if (ch == '\\' && *src != '\0' && !isspace((unsigned char)*src))
|
|
ch = *src++;
|
|
if (size > 1) {
|
|
*dst++ = ch;
|
|
size--;
|
|
}
|
|
len++;
|
|
}
|
|
if (size > 0)
|
|
*dst = '\0';
|
|
|
|
debug_return_size_t(len);
|
|
}
|