1 /* Copyright (c) 2009, Google Inc. 2 * All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions are 6 * met: 7 * 8 * * Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * * Redistributions in binary form must reproduce the above 11 * copyright notice, this list of conditions and the following disclaimer 12 * in the documentation and/or other materials provided with the 13 * distribution. 14 * * Neither the name of Google Inc. nor the names of its 15 * contributors may be used to endorse or promote products derived from 16 * this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 * 30 * --- 31 * Author: Craig Silverstein 32 */ 33 34 #ifndef _WIN32 35 # error You should only be including windows/port.cc in a windows environment! 36 #endif 37 38 #include <string.h> // for strlen(), memset(), memcmp() 39 #include <assert.h> 40 #include <stdarg.h> // for va_list, va_start, va_end 41 #include <windows.h> 42 43 #include "windows_port.h" 44 45 // These call the windows _vsnprintf, but always NUL-terminate. 46 #if !defined(__MINGW32__) && !defined(__MINGW64__) /* mingw already defines */ 47 #if !(defined(_MSC_VER) && _MSC_VER >= 1900) /* msvc 2015 already defines */ 48 49 #ifdef _MSC_VER 50 # pragma warning(push) 51 # pragma warning(disable: 4996) // ignore _vsnprintf security warning 52 #endif 53 int safe_vsnprintf(char *str, size_t size, const char *format, va_list ap) { 54 if (size == 0) // not even room for a \0? 55 return -1; // not what C99 says to do, but what windows does 56 str[size-1] = '\0'; 57 return _vsnprintf(str, size-1, format, ap); 58 } 59 #ifdef _MSC_VER 60 # pragma warning(pop) 61 #endif 62 63 int snprintf(char *str, size_t size, const char *format, ...) { 64 int r; 65 va_list ap; 66 va_start(ap, format); 67 r = vsnprintf(str, size, format, ap); 68 va_end(ap); 69 return r; 70 } 71 72 #endif /* if !(defined(_MSC_VER) && _MSC_VER >= 1900) */ 73 #endif /* #if !defined(__MINGW32__) && !defined(__MINGW64__) */ 74
