diff options
Diffstat (limited to 'thirdparty/miniupnpc/src/win32_snprintf.h')
| -rw-r--r-- | thirdparty/miniupnpc/src/win32_snprintf.h | 71 |
1 files changed, 71 insertions, 0 deletions
diff --git a/thirdparty/miniupnpc/src/win32_snprintf.h b/thirdparty/miniupnpc/src/win32_snprintf.h new file mode 100644 index 0000000000..1fc284ecff --- /dev/null +++ b/thirdparty/miniupnpc/src/win32_snprintf.h @@ -0,0 +1,71 @@ +/* vim: tabstop=4 shiftwidth=4 noexpandtab + * MiniUPnP project + * http://miniupnp.free.fr/ or https://miniupnp.tuxfamily.org/ + * (c) 2020 Pali Rohár + * This software is subject to the conditions detailed + * in the LICENCE file provided within the distribution */ + +#ifndef WIN32_SNPRINTF_H +#define WIN32_SNPRINTF_H + +#ifdef _WIN32 + +#include <stdio.h> + +/* snprintf is supported by: + * - Visual Studio 2015 or new + * - mingw32 with iso c ext + * - mingw-w64 with ansi stdio + * - mingw-w64 6.0.0 or new with ucrt + * - mingw-w64 8.0.0 or new with iso c ext + */ +#if ( \ + (defined(_MSC_VER) && _MSC_VER < 1900) /* Visual Studio older than 2015 */ || \ + (defined(__MINGW32__) && !defined(__MINGW64_VERSION_MAJOR) && defined(__NO_ISOCEXT)) /* mingw32 without iso c ext */ || \ + (defined(__MINGW64_VERSION_MAJOR) && /* mingw-w64 not ... */ !( \ + (defined (__USE_MINGW_ANSI_STDIO) && __USE_MINGW_ANSI_STDIO != 0)) /* ... with ansi stdio */ || \ + (__MINGW64_VERSION_MAJOR >= 6 && defined(_UCRT)) /* ... at least 6.0.0 with ucrt */ || \ + (__MINGW64_VERSION_MAJOR >= 8 && !defined(__NO_ISOCEXT)) /* ... at least 8.0.0 with iso c ext */ || \ + 0) || \ +0) + +/* _scprintf is supported by: + * - Visual Studio 2002 or new + * - msvcr70.dll or new + * - msvcrt.dll on Windows XP or new + */ +#if ( \ + (defined(_MSC_VER) && _MSC_VER < 1300) /* Visual Studio older than 2002 */ || \ + (defined(__MSVCRT_VERSION__) && __MSVCRT_VERSION__ < 0x700) /* msvcrt older than 7.0 */ || \ +0) +#define CHECK_SCPRINTF 0 +#define IF_SCPRINTF(expr) 0 +#define ELSE_SCPRINTF(expr) expr +#else +#define CHECK_SCPRINTF 1 +#define IF_SCPRINTF(expr) expr +#define ELSE_SCPRINTF(expr) 0 +#endif + +/* Emulation of snprintf for win32 */ +#define snprintf(buf, size, fmt, ...) ( \ + (((size) != 0 && (buf) != NULL) ? ( /* _snprintf does not work with NULL buffer */ \ + _snprintf((buf), (size), (fmt), __VA_ARGS__), /* _snprintf returns -1 on overflow, so ignore its value */ \ + (((char *)buf)[(size_t)(size)-1] = 0), /* _snprintf does not fill nul byte on overflow */ \ + 0) : 0), \ + (CHECK_SCPRINTF ? IF_SCPRINTF( \ + _scprintf((fmt), __VA_ARGS__) /* calculate return value for snprintf via _scprintf */ \ + ) : ELSE_SCPRINTF( \ + ((size) != 0 && (buf) != NULL) ? \ + strlen((buf)) /* return just length of buffer */ \ + : \ + 1 /* no buffer, impossible to calculate, return just non-zero number */ \ + ) \ + ) \ +) + +#endif + +#endif /* _WIN32 */ + +#endif /* WIN32_SNPRINTF_H */ |