linux-sgx-trts-modified/common/inc/internal/se_string.h

/*
 * Copyright (C) 2011-2018 Intel Corporation. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 *   * Redistributions of source code must retain the above copyright
 *     notice, this list of conditions and the following disclaimer.
 *   * 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.
 *   * Neither the name of Intel Corporation nor the names of its
 *     contributors may be used to endorse or promote products derived
 *     from this software without specific prior written permission.
 *
 * 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 _SE_STRING_H_ 
#define _SE_STRING_H_

#include "se_memcpy.h"
#include <string.h>


#ifndef _ERRNO_T_DEFINED
#define _ERRNO_T_DEFINED
typedef int errno_t;
#endif

static inline errno_t strcat_s(char *dst, size_t max_size, const char *src)
{
    if(strlen(dst)+strlen(src)+1>max_size)return -1;
    strcat(dst, src);
    return 0;
}

static inline errno_t strcpy_s(char *dst, size_t max_size, const char *src)
{
    if(strnlen(src, max_size)+1>max_size)return -1;
    strcpy(dst, src);
    return 0;
}

#define _strnicmp strncasecmp
static inline errno_t strncat_s(char *dst, size_t max_size, const char *src, size_t max_count)
{
    size_t len = strnlen(src,max_count);
    len+=strnlen(dst, max_size)+1;
    if(len>max_size)return -1;
    strncat(dst, src, max_count);
    return 0;
}

#define _strdup strdup
#define strnlen_s strnlen



#endif