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68 lines
2.5 KiB
68 lines
2.5 KiB
/**
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* Copyright 2020 Huawei Technologies Co., Ltd
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "secinput.h"
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/*
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* <FUNCTION DESCRIPTION>
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* The vfscanf_s function is equivalent to fscanf_s, with the variable argument list replaced by argList
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* The vfscanf_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
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* form 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 vfscanf_s(FILE *stream, const char *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("vfscanf_s");
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return SECUREC_SCANF_EINVAL;
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}
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if (stream == stdin) {
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return vscanf_s(format, argList);
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}
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SECUREC_LOCK_FILE(stream);
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SECUREC_INIT_SEC_FILE_STREAM(fStr, SECUREC_FILE_STREAM_FLAG, stream, SECUREC_UNINITIALIZED_FILE_POS, NULL, 0);
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retVal = SecInputS(&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("vfscanf_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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