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 sprintf_s function is equivalent to the sprintf function
21 * except for the parameter destMax and the explicit runtime-constraints violation
22 * The sprintf_s function formats and stores a series of characters and values
23 * in strDest. Each argument (if any) is converted and output according to
24 * the corresponding format specification in format. The format consists of
25 * ordinary characters and has the same form and function as the format argument
26 * for printf. A null character is appended after the last character written.
27 * If copying occurs between strings that overlap, the behavior is undefined.
28 *
29 * <INPUT PARAMETERS>
30 * strDest Storage location for output.
31 * destMax Maximum number of characters to store.
32 * format Format-control string.
33 * ... Optional arguments
34 *
35 * <OUTPUT PARAMETERS>
36 * strDest is updated
37 *
38 * <RETURN VALUE>
39 * return the number of bytes stored in strDest, not counting the terminating null character.
40 * return -1 if an error occurred.
41 *
42 * If there is a runtime-constraint violation, strDest[0] will be set to the '\0' when strDest and destMax valid
43 *******************************************************************************
44 */
45 #ifndef __MINGW32__
sprintf_s(char * strDest,size_t destMax,const char * format,...)46 int sprintf_s(char *strDest, size_t destMax, const char *format, ...)
47 {
48 int ret; /* If initialization causes e838 */
49 va_list arglist;
50
51 va_start(arglist, format);
52 ret = vsprintf_s(strDest, destMax, format, arglist);
53 va_end(arglist);
54 (void)arglist; /* to clear e438 last value assigned not used , the compiler will optimize this code */
55
56 return ret;
57 }
58 #endif
59
60