81 lines
2.9 KiB
C
81 lines
2.9 KiB
C
/*
|
|
* Copyright (c) Huawei Technologies Co., Ltd. 2014-2018. All rights reserved.
|
|
* Description: wcscpy_s function
|
|
* Author: lishunda
|
|
* Create: 2014-02-25
|
|
*/
|
|
|
|
#include "securecutil.h"
|
|
|
|
SECUREC_INLINE errno_t SecDoCpyW(wchar_t *strDest, size_t destMax, const wchar_t *strSrc)
|
|
{
|
|
size_t srcStrLen;
|
|
SECUREC_CALC_WSTR_LEN(strSrc, destMax, &srcStrLen);
|
|
|
|
if (srcStrLen == destMax) {
|
|
strDest[0] = '\0';
|
|
SECUREC_ERROR_INVALID_RANGE("wcscpy_s");
|
|
return ERANGE_AND_RESET;
|
|
}
|
|
if (strDest == strSrc) {
|
|
return EOK;
|
|
}
|
|
|
|
if (SECUREC_STRING_NO_OVERLAP(strDest, strSrc, srcStrLen)) {
|
|
/* Performance optimization, srcStrLen is single character length include '\0' */
|
|
SECUREC_MEMCPY_WARP_OPT(strDest, strSrc, (srcStrLen + 1) * sizeof(wchar_t));
|
|
return EOK;
|
|
} else {
|
|
strDest[0] = L'\0';
|
|
SECUREC_ERROR_BUFFER_OVERLAP("wcscpy_s");
|
|
return EOVERLAP_AND_RESET;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* <FUNCTION DESCRIPTION>
|
|
* The wcscpy_s function copies the wide string pointed to by strSrc
|
|
* (including theterminating null wide character) into the array pointed to by strDest
|
|
|
|
* <INPUT PARAMETERS>
|
|
* strDest Destination string buffer
|
|
* destMax Size of the destination string buffer.
|
|
* strSrc Null-terminated source string buffer.
|
|
*
|
|
* <OUTPUT PARAMETERS>
|
|
* strDest is updated.
|
|
*
|
|
* <RETURN VALUE>
|
|
* EOK Success
|
|
* EINVAL strDest is NULL and destMax != 0 and destMax <= SECUREC_WCHAR_STRING_MAX_LEN
|
|
* EINVAL_AND_RESET strDest != NULL and strSrc is NULLL and destMax != 0
|
|
* and destMax <= SECUREC_WCHAR_STRING_MAX_LEN
|
|
* ERANGE destMax > SECUREC_WCHAR_STRING_MAX_LEN or destMax is 0
|
|
* ERANGE_AND_RESET destMax <= length of strSrc and strDest != strSrc
|
|
* and strDest != NULL and strSrc != NULL and destMax != 0
|
|
* and destMax <= SECUREC_WCHAR_STRING_MAX_LEN and not overlap
|
|
* EOVERLAP_AND_RESET dest buffer and source buffer are overlapped and destMax != 0
|
|
* and destMax <= SECUREC_WCHAR_STRING_MAX_LEN
|
|
* and strDest != NULL and strSrc !=NULL and strDest != strSrc
|
|
*
|
|
* If there is a runtime-constraint violation, strDest[0] will be set to the '\0' when strDest and destMax valid
|
|
*/
|
|
errno_t wcscpy_s(wchar_t *strDest, size_t destMax, const wchar_t *strSrc)
|
|
{
|
|
if (destMax == 0 || destMax > SECUREC_WCHAR_STRING_MAX_LEN) {
|
|
SECUREC_ERROR_INVALID_RANGE("wcscpy_s");
|
|
return ERANGE;
|
|
}
|
|
if (strDest == NULL || strSrc == NULL) {
|
|
SECUREC_ERROR_INVALID_PARAMTER("wcscpy_s");
|
|
if (strDest != NULL) {
|
|
strDest[0] = L'\0';
|
|
return EINVAL_AND_RESET;
|
|
}
|
|
return EINVAL;
|
|
}
|
|
return SecDoCpyW(strDest, destMax, strSrc);
|
|
}
|
|
|
|
|