You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
80 lines
2.9 KiB
80 lines
2.9 KiB
/**
|
|
* Copyright 2020 Huawei Technologies Co., Ltd
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
|
|
#include "secinput.h"
|
|
|
|
static size_t SecWcslen(const wchar_t *s)
|
|
{
|
|
const wchar_t *end = s;
|
|
while (*end != L'\0') {
|
|
++end;
|
|
}
|
|
return ((size_t)((end - s)));
|
|
}
|
|
|
|
/*
|
|
* <FUNCTION DESCRIPTION>
|
|
* The vswscanf_s function is the wide-character equivalent of the vsscanf_s function
|
|
* The vsscanf_s function reads data from buffer into the location given by
|
|
* each argument. Every argument must be a pointer to a variable with a type
|
|
* that corresponds to a type specifier in format.
|
|
* The format argument controls the interpretation of the input fields and
|
|
* has the same form and function as the format argument for the scanf function.
|
|
* If copying takes place between strings that overlap, the behavior is undefined.
|
|
*
|
|
* <INPUT PARAMETERS>
|
|
* buffer Stored data
|
|
* format Format control string, see Format Specifications.
|
|
* argList pointer to list of arguments
|
|
*
|
|
* <OUTPUT PARAMETERS>
|
|
* argList the converted value stored in user assigned address
|
|
*
|
|
* <RETURN VALUE>
|
|
* Each of these functions returns the number of fields successfully converted
|
|
* and assigned; the return value does not include fields that were read but
|
|
* not assigned. A return value of 0 indicates that no fields were assigned.
|
|
* return -1 if an error occurs.
|
|
*/
|
|
int vswscanf_s(const wchar_t *buffer, const wchar_t *format, va_list argList)
|
|
{
|
|
size_t count; /* If initialization causes e838 */
|
|
SecFileStream fStr;
|
|
int retVal;
|
|
|
|
/* validation section */
|
|
if (buffer == NULL || format == NULL) {
|
|
SECUREC_ERROR_INVALID_PARAMTER("vswscanf_s");
|
|
return SECUREC_SCANF_EINVAL;
|
|
}
|
|
count = SecWcslen(buffer);
|
|
if (count == 0 || count > SECUREC_WCHAR_STRING_MAX_LEN) {
|
|
SecClearDestBufW(buffer, format, argList);
|
|
SECUREC_ERROR_INVALID_PARAMTER("vswscanf_s");
|
|
return SECUREC_SCANF_EINVAL;
|
|
}
|
|
SECUREC_INIT_SEC_FILE_STREAM(fStr, SECUREC_MEM_STR_FLAG, NULL, 0,\
|
|
(const char *)buffer, (int)count * ((int)sizeof(wchar_t)));
|
|
retVal = SecInputSW(&fStr, format, argList);
|
|
if (retVal < 0) {
|
|
SECUREC_ERROR_INVALID_PARAMTER("vswscanf_s");
|
|
return SECUREC_SCANF_EINVAL;
|
|
}
|
|
return retVal;
|
|
}
|
|
|
|
|