73 lines
2.5 KiB
C
73 lines
2.5 KiB
C
/*
|
|
* The copyright in this software is being made available under the 2-clauses
|
|
* BSD License, included below. This software may be subject to other third
|
|
* party and contributor rights, including patent rights, and no such rights
|
|
* are granted under this license.
|
|
*
|
|
* Copyright (c) 2015, Matthieu Darbois
|
|
* 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.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `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 COPYRIGHT OWNER OR CONTRIBUTORS 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.
|
|
*/
|
|
|
|
#ifndef OPJ_STRING_H
|
|
#define OPJ_STRING_H
|
|
|
|
#include <errno.h>
|
|
#include <string.h>
|
|
|
|
/* strnlen is not standard, strlen_s is C11... */
|
|
/* keep in mind there still is a buffer read overflow possible */
|
|
static size_t opj_strnlen_s(const char *src, size_t max_len)
|
|
{
|
|
size_t len;
|
|
|
|
if (src == NULL) {
|
|
return 0U;
|
|
}
|
|
for (len = 0U; (*src != '\0') && (len < max_len); src++, len++);
|
|
return len;
|
|
}
|
|
|
|
/* should be equivalent to C11 function except for the handler */
|
|
/* keep in mind there still is a buffer read overflow possible */
|
|
static int opj_strcpy_s(char* dst, size_t dst_size, const char* src)
|
|
{
|
|
size_t src_len = 0U;
|
|
if ((dst == NULL) || (dst_size == 0U)) {
|
|
return EINVAL;
|
|
}
|
|
if (src == NULL) {
|
|
dst[0] = '\0';
|
|
return EINVAL;
|
|
}
|
|
src_len = opj_strnlen_s(src, dst_size);
|
|
if (src_len >= dst_size) {
|
|
return ERANGE;
|
|
}
|
|
memcpy(dst, src, src_len);
|
|
dst[src_len] = '\0';
|
|
return 0;
|
|
}
|
|
|
|
#endif /* OPJ_STRING_H */
|