54 lines
1.7 KiB
C
54 lines
1.7 KiB
C
/*
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* Copyright (c) Huawei Technologies Co., Ltd. 2014-2018. All rights reserved.
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* Description: vswprintf_s function
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* Author: lishunda
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* Create: 2014-02-25
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*/
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#include "secureprintoutput.h"
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/*
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* <FUNCTION DESCRIPTION>
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* The vswprintf_s function is the wide-character equivalent of the vsprintf_s function
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*
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* <INPUT PARAMETERS>
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* strDest Storage location for the output.
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* destMax Maximum number of characters to store
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* format Format specification.
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* argList pointer to list of arguments
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*
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* <OUTPUT PARAMETERS>
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* strDest is updated
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*
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* <RETURN VALUE>
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* return the number of wide characters stored in strDest, not counting the terminating null wide character.
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* return -1 if an error occurred.
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*
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* If there is a runtime-constraint violation, strDest[0] will be set to the '\0' when strDest and destMax valid
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*/
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int vswprintf_s(wchar_t *strDest, size_t destMax, const wchar_t *format, va_list argList)
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{
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int retVal; /* If initialization causes e838 */
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if (SECUREC_VSPRINTF_PARAM_ERROR(format, strDest, destMax, SECUREC_WCHAR_STRING_MAX_LEN)) {
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SECUREC_VSPRINTF_CLEAR_DEST(strDest, destMax, SECUREC_WCHAR_STRING_MAX_LEN);
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SECUREC_ERROR_INVALID_PARAMTER("vswprintf_s");
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return -1;
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}
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retVal = SecVswprintfImpl(strDest, destMax, format, argList);
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if (retVal < 0) {
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strDest[0] = '\0';
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if (retVal == SECUREC_PRINTF_TRUNCATE) {
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/* Buffer too small */
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SECUREC_ERROR_INVALID_RANGE("vswprintf_s");
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}
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SECUREC_ERROR_INVALID_PARAMTER("vswprintf_s");
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return -1;
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}
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return retVal;
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}
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