nexmon – Blame information for rev 1
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| Rev | Author | Line No. | Line |
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| 1 | office | 1 | /* |
| 2 | * Wrappers for printf like functions. |
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| 3 | * |
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| 4 | * Wireshark - Network traffic analyzer |
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| 5 | * By Gerald Combs <gerald@wireshark.org> |
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| 6 | * Copyright 2007 Gerald Combs |
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| 7 | * |
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| 8 | * This program is free software; you can redistribute it and/or |
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| 9 | * modify it under the terms of the GNU General Public License |
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| 10 | * as published by the Free Software Foundation; either version 2 |
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| 11 | * of the License, or (at your option) any later version. |
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| 12 | * |
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| 13 | * This program is distributed in the hope that it will be useful, |
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| 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 16 | * GNU General Public License for more details. |
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| 17 | * |
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| 18 | * You should have received a copy of the GNU General Public License |
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| 19 | * along with this program; if not, write to the Free Software |
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| 20 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. |
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| 21 | */ |
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| 22 | |||
| 23 | #ifndef __WS_PRINTF_H__ |
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| 24 | #define __WS_PRINTF_H__ |
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| 25 | |||
| 26 | /* |
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| 27 | * GLib's string utility routines are slow on windows, likely due to calling |
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| 28 | * g_printf_string_upper_bound. Using ws_snprintf and ws_vsnprintf in hot |
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| 29 | * code paths can speed up program execution. Otherwise you're probably safe |
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| 30 | * sticking with g_snprintf and g_vsnprintf. |
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| 31 | */ |
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| 32 | |||
| 33 | #ifdef __cplusplus |
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| 34 | extern "C" { |
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| 35 | #endif /* __cplusplus */ |
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| 36 | |||
| 37 | #ifdef _WIN32 |
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| 38 | #include <strsafe.h> |
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| 39 | |||
| 40 | #if _MSC_VER < 1900 |
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| 41 | #include <stdarg.h> |
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| 42 | |||
| 43 | /* |
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| 44 | * vsnprintf_s's return value isn't compatible with C99 vsnprintf. We don't |
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| 45 | * return anything in order to avoid confusion. |
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| 46 | */ |
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| 47 | |||
| 48 | static __inline void |
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| 49 | ws_vsnprintf(char *buffer, size_t size_of_buffer, const char *format, va_list argptr) { |
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| 50 | /* We could alternatively use StringCchVPrintfA */ |
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| 51 | vsnprintf_s(buffer, size_of_buffer, _TRUNCATE, format, argptr); |
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| 52 | } |
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| 53 | |||
| 54 | #else /* _MSC_VER uses UCRT */ |
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| 55 | |||
| 56 | /* The UCRT versions of snprintf and vsnprintf conform to C99 */ |
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| 57 | |||
| 58 | static __inline void |
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| 59 | ws_vsnprintf(char *buffer, size_t size_of_buffer, const char *format, va_list argptr) |
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| 60 | { |
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| 61 | vsnprintf(buffer, size_of_buffer, format, argptr); |
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| 62 | } |
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| 63 | |||
| 64 | #endif /* _MSC_VER */ |
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| 65 | |||
| 66 | #else /* _WIN32 */ |
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| 67 | |||
| 68 | #include <glib.h> |
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| 69 | |||
| 70 | /* |
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| 71 | * Use g_vsnprintf. On Linux and macOS these should be a thin wrapper around |
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| 72 | * vsprintf. |
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| 73 | */ |
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| 74 | |||
| 75 | static inline void |
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| 76 | ws_vsnprintf(char *buffer, size_t size_of_buffer, const char *format, va_list argptr) |
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| 77 | { |
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| 78 | g_vsnprintf(buffer, (gulong) size_of_buffer, format, argptr); |
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| 79 | } |
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| 80 | |||
| 81 | #endif /* _WIN32 */ |
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| 82 | |||
| 83 | #ifdef _WIN32 |
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| 84 | static __inline void |
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| 85 | #else |
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| 86 | static inline void |
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| 87 | #endif |
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| 88 | ws_snprintf(char *buffer, size_t size_of_buffer, const char * format, ...) { |
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| 89 | va_list argptr; |
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| 90 | |||
| 91 | va_start(argptr, format); |
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| 92 | ws_vsnprintf(buffer, size_of_buffer, format, argptr); |
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| 93 | va_end(argptr); |
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| 94 | } |
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| 95 | |||
| 96 | #ifdef __cplusplus |
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| 97 | } |
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| 98 | #endif /* __cplusplus */ |
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| 99 | |||
| 100 | #endif /* __WS_PRINTF_H__ */ |