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Diffstat (limited to 'src/libstrongswan/utils/printf_hook.h')
| -rw-r--r-- | src/libstrongswan/utils/printf_hook.h | 247 |
1 files changed, 0 insertions, 247 deletions
diff --git a/src/libstrongswan/utils/printf_hook.h b/src/libstrongswan/utils/printf_hook.h deleted file mode 100644 index 1425910be..000000000 --- a/src/libstrongswan/utils/printf_hook.h +++ /dev/null @@ -1,247 +0,0 @@ -/* - * Copyright (C) 2009 Tobias Brunner - * Copyright (C) 2006-2008 Martin Willi - * Hochschule fuer Technik Rapperswil - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY - * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License - * for more details. - */ - -/** - * @defgroup printf_hook printf_hook - * @{ @ingroup utils - */ - -#ifndef PRINTF_HOOK_H_ -#define PRINTF_HOOK_H_ - -typedef struct printf_hook_t printf_hook_t; -typedef struct printf_hook_spec_t printf_hook_spec_t; -typedef struct printf_hook_data_t printf_hook_data_t; -typedef enum printf_hook_argtype_t printf_hook_argtype_t; - -#if !defined(USE_VSTR) && \ - !defined(HAVE_PRINTF_FUNCTION) && \ - !defined(HAVE_PRINTF_SPECIFIER) -/* assume newer glibc register_printf_specifier if none given */ -#define HAVE_PRINTF_SPECIFIER -#endif - -#if !defined(USE_VSTR) && \ - (defined(HAVE_PRINTF_FUNCTION) || defined(HAVE_PRINTF_SPECIFIER)) - -#include <stdio.h> -#include <printf.h> - -enum printf_hook_argtype_t { - PRINTF_HOOK_ARGTYPE_END = -1, - PRINTF_HOOK_ARGTYPE_INT = PA_INT, - PRINTF_HOOK_ARGTYPE_POINTER = PA_POINTER, -}; - -/** - * Data to pass to a printf hook. - */ -struct printf_hook_data_t { - - /** - * Output FILE stream - */ - FILE *stream;; -}; - -/** - * Helper macro to be used in printf hook callbacks. - */ -#define print_in_hook(data, fmt, ...) ({\ - ssize_t _written = fprintf(data->stream, fmt, ##__VA_ARGS__);\ - if (_written < 0)\ - {\ - _written = 0;\ - }\ - _written;\ -}) - -#else - -#include <vstr.h> - -enum printf_hook_argtype_t { - PRINTF_HOOK_ARGTYPE_END = VSTR_TYPE_FMT_END, - PRINTF_HOOK_ARGTYPE_INT = VSTR_TYPE_FMT_INT, - PRINTF_HOOK_ARGTYPE_POINTER = VSTR_TYPE_FMT_PTR_VOID, -}; - -/** - * Redefining printf and alike - */ -#include <stdio.h> -#include <stdarg.h> - -int vstr_wrapper_printf(const char *format, ...); -int vstr_wrapper_fprintf(FILE *stream, const char *format, ...); -int vstr_wrapper_sprintf(char *str, const char *format, ...); -int vstr_wrapper_snprintf(char *str, size_t size, const char *format, ...); -int vstr_wrapper_asprintf(char **str, const char *format, ...); - -int vstr_wrapper_vprintf(const char *format, va_list ap); -int vstr_wrapper_vfprintf(FILE *stream, const char *format, va_list ap); -int vstr_wrapper_vsprintf(char *str, const char *format, va_list ap); -int vstr_wrapper_vsnprintf(char *str, size_t size, const char *format, va_list ap); -int vstr_wrapper_vasprintf(char **str, const char *format, va_list ap); - -#ifdef printf -#undef printf -#endif -#ifdef fprintf -#undef fprintf -#endif -#ifdef sprintf -#undef sprintf -#endif -#ifdef snprintf -#undef snprintf -#endif -#ifdef asprintf -#undef asprintf -#endif -#ifdef vprintf -#undef vprintf -#endif -#ifdef vfprintf -#undef vfprintf -#endif -#ifdef vsprintf -#undef vsprintf -#endif -#ifdef vsnprintf -#undef vsnprintf -#endif -#ifdef vasprintf -#undef vasprintf -#endif - -#define printf vstr_wrapper_printf -#define fprintf vstr_wrapper_fprintf -#define sprintf vstr_wrapper_sprintf -#define snprintf vstr_wrapper_snprintf -#define asprintf vstr_wrapper_asprintf - -#define vprintf vstr_wrapper_vprintf -#define vfprintf vstr_wrapper_vfprintf -#define vsprintf vstr_wrapper_vsprintf -#define vsnprintf vstr_wrapper_vsnprintf -#define vasprintf vstr_wrapper_vasprintf - -/** - * Data to pass to a printf hook. - */ -struct printf_hook_data_t { - - /** - * Base to append printf to - */ - Vstr_base *base; - - /** - * Position in base to write to - */ - size_t pos; -}; - -/** - * Wrapper around vstr_add_vfmt(), avoids having to link all users of - * print_in_hook() against libvstr. - * - * @param base Vstr_string to add string to - * @param pos position to write to - * @param fmt format string - * @param ... arguments - * @return number of characters written - */ -size_t vstr_print_in_hook(struct Vstr_base *base, size_t pos, const char *fmt, - ...); - -/** - * Helper macro to be used in printf hook callbacks. - */ -#define print_in_hook(data, fmt, ...) ({\ - size_t _written; \ - _written = vstr_print_in_hook(data->base, data->pos, fmt, ##__VA_ARGS__);\ - data->pos += _written;\ - _written;\ -}) - -#endif - -/** - * Callback function type for printf hooks. - * - * @param data hook data, to pass to print_in_hook() - * @param spec format specifier - * @param args arguments array - * @return number of characters written - */ -typedef int (*printf_hook_function_t)(printf_hook_data_t *data, - printf_hook_spec_t *spec, - const void *const *args); - -/** - * Properties of the format specifier - */ -struct printf_hook_spec_t { - /** - * TRUE if a '#' was used in the format specifier - */ - int hash; - - /** - * TRUE if a '-' was used in the format specifier - */ - int minus; - - /** - * TRUE if a '+' was used in the format specifier - */ - int plus; - - /** - * The width as given in the format specifier. - */ - int width; -}; - -/** - * Printf handler management. - */ -struct printf_hook_t { - - /** - * Register a printf handler. - * - * @param spec printf hook format character - * @param hook hook function - * @param ... list of PRINTF_HOOK_ARGTYPE_*, MUST end with PRINTF_HOOK_ARGTYPE_END - */ - void (*add_handler)(printf_hook_t *this, char spec, - printf_hook_function_t hook, ...); - - /** - * Destroy a printf_hook instance. - */ - void (*destroy)(printf_hook_t *this); -}; - -/** - * Create a printf_hook instance. - */ -printf_hook_t *printf_hook_create(); - -#endif /** PRINTF_HOOK_H_ @}*/ |