1 /*
2 * Copyright (c) 2021 Huawei Device Co., Ltd.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at
6 *
7 * http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
14 */
15
16 #include "securec.h"
17
18 /*******************************************************************************
19 * <FUNCTION DESCRIPTION>
20 * The swscanf_s function is the wide-character equivalent of the sscanf_s function
21 * The swscanf_s function reads data from buffer into the location given by
22 * each argument. Every argument must be a pointer to a variable with a type
23 * that corresponds to a type specifier in format. The format argument controls
24 * the interpretation of the input fields and has the same form and function
25 * as the format argument for the scanf function. If copying takes place between
26 * strings that overlap, the behavior is undefined.
27 *
28 * <INPUT PARAMETERS>
29 * buffer Stored data.
30 * format Format control string, see Format Specifications.
31 * ... Optional arguments.
32 *
33 * <OUTPUT PARAMETERS>
34 * ... the converted value stored in user assigned address
35 *
36 * <RETURN VALUE>
37 * Each of these functions returns the number of fields successfully converted
38 * and assigned; The return value does not include fields that were read but not
39 * assigned.
40 * A return value of 0 indicates that no fields were assigned.
41 * return -1 if an error occurs.
42 *******************************************************************************
43 */
44 #ifndef __MINGW32__
swscanf_s(const wchar_t * buffer,const wchar_t * format,...)45 int swscanf_s(const wchar_t *buffer, const wchar_t *format, ...)
46 {
47 int ret; /* If initialization causes e838 */
48 va_list arglist;
49
50 va_start(arglist, format);
51 ret = vswscanf_s(buffer, format, arglist);
52 va_end(arglist);
53 (void)arglist; /* to clear e438 last value assigned not used , the compiler will optimize this code */
54
55 return ret;
56 }
57 #endif
58
59