59 lines
2.0 KiB
C
59 lines
2.0 KiB
C
/*
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* Copyright (c) Huawei Technologies Co., Ltd. 2014-2018. All rights reserved.
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* Description: vfwscanf_s function
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* Author: lishunda
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* Create: 2014-02-25
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*/
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#define SECUREC_INLINE_INIT_FILE_STREAM_FILE 1
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#include "secinput.h"
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/*
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* <FUNCTION DESCRIPTION>
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* The vfwscanf_s function is the wide-character equivalent of the vfscanf_s function
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* The vfwscanf_s function reads data from the current position of stream into
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* the locations given by argument (if any). Each argument must be a pointer
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* to a variable of a type that corresponds to a type specifier in format.
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* format controls the interpretation of the input fields and has the same form
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* and function as the format argument for scanf.
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*
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* <INPUT PARAMETERS>
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* stream Pointer to FILE structure.
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* format Format control string, see Format Specifications.
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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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* Each of these functions returns the number of fields successfully converted
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* and assigned; the return value does not include fields that were read but
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* not assigned. 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 vfwscanf_s(FILE *stream, 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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if (stream == NULL || format == NULL) {
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SECUREC_ERROR_INVALID_PARAMTER("vfwscanf_s");
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return SECUREC_SCANF_EINVAL;
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}
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if (stream == SECUREC_STREAM_STDIN) {
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return vwscanf_s(format, argList);
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}
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SECUREC_LOCK_FILE(stream);
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SecInitFileStreamFromFile(&fStr, stream);
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retVal = SecInputSW(&fStr, format, argList);
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SECUREC_UNLOCK_FILE(stream);
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if (retVal < 0) {
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SECUREC_ERROR_INVALID_PARAMTER("vfwscanf_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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