1 /* Copyright the libuv project contributors. All rights reserved.
2 *
3 * Permission is hereby granted, free of charge, to any person obtaining a copy
4 * of this software and associated documentation files (the "Software"), to
5 * deal in the Software without restriction, including without limitation the
6 * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
7 * sell copies of the Software, and to permit persons to whom the Software is
8 * furnished to do so, subject to the following conditions:
9 *
10 * The above copyright notice and this permission notice shall be included in
11 * all copies or substantial portions of the Software.
12 *
13 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
14 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
15 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
16 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
17 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
18 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
19 * IN THE SOFTWARE.
20 */
21
22 #if defined(_MSC_VER) && _MSC_VER < 1900
23
24 #include <stdio.h>
25 #include <stdarg.h>
26
27 /* Emulate snprintf() on MSVC<2015, _snprintf() doesn't zero-terminate the buffer
28 * on overflow...
29 */
snprintf(char * buf,size_t len,const char * fmt,...)30 int snprintf(char* buf, size_t len, const char* fmt, ...) {
31 int n;
32 va_list ap;
33 va_start(ap, fmt);
34
35 n = _vscprintf(fmt, ap);
36 vsnprintf_s(buf, len, _TRUNCATE, fmt, ap);
37
38 va_end(ap);
39 return n;
40 }
41
42 #endif
43
