mirror of
https://github.com/openharmony/third_party_bounds_checking_function.git
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mamingshuai
66 lines
2.3 KiB
C
66 lines
2.3 KiB
C
/*
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* Copyright (c) Huawei Technologies Co., Ltd. 2014-2020. All rights reserved.
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* Licensed under Mulan PSL v2.
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* You can use this software according to the terms and conditions of the Mulan PSL v2.
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* You may obtain a copy of Mulan PSL v2 at:
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* http://license.coscl.org.cn/MulanPSL2
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* THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
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* EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
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* MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
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* See the Mulan PSL v2 for more details.
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* Description: vwscanf_s function
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* Author: lishunda
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* Create: 2014-02-25
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*/
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#ifndef SECUREC_FOR_WCHAR
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#define SECUREC_FOR_WCHAR
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#endif
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#include "secinput.h"
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/*
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* <FUNCTION DESCRIPTION>
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* The vwscanf_s function is the wide-character equivalent of the vscanf_s function
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* The vwscanf_s function is the wide-character version of vscanf_s. The
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* function reads data from the standard input stream stdin and writes the
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* data into the location that's given by argument. Each argument must be a
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* pointer to a variable of a type that corresponds to a type specifier in
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* format. If copying occurs between strings that overlap, the behavior is
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* undefined.
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*
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* <INPUT PARAMETERS>
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* format Format control string.
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* argList pointer to list of arguments
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*
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* <OUTPUT PARAMETERS>
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* argList the converted value stored in user assigned address
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*
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* <RETURN VALUE>
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* Returns the number of fields successfully converted and assigned;
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* the return value does not include fields that were read but not assigned.
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* A return value of 0 indicates that no fields were assigned.
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* return -1 if an error occurs.
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*/
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int vwscanf_s(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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SecFileStream fStr;
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SECUREC_FILE_STREAM_FROM_STDIN(&fStr);
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if (format == NULL || fStr.pf == NULL) {
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SECUREC_ERROR_INVALID_PARAMTER("vwscanf_s");
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return SECUREC_SCANF_EINVAL;
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}
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SECUREC_LOCK_STDIN(0, fStr.pf);
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retVal = SecInputSW(&fStr, format, argList);
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SECUREC_UNLOCK_STDIN(0, fStr.pf);
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if (retVal < 0) {
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SECUREC_ERROR_INVALID_PARAMTER("vwscanf_s");
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return SECUREC_SCANF_EINVAL;
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}
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return retVal;
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}
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