79 lines
2.0 KiB
C
79 lines
2.0 KiB
C
/*
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* Copyright (C) 2006-2008 Martin Willi
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* Hochschule fuer Technik Rapperswil
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* for more details.
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*
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* $Id$
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*/
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/**
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* @defgroup printf_hook printf_hook
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* @{ @ingroup libstrongswan
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*/
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#ifndef PRINTF_HOOK_H_
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#define PRINTF_HOOK_H_
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typedef struct printf_hook_t printf_hook_t;
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typedef struct printf_hook_functions_t printf_hook_functions_t;
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#include <printf.h>
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/**
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* Printf hook function set.
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*
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* A printf hook has two functions, one to print the string, one to read
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* in the number of arguments. See <printf.h>.
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*/
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struct printf_hook_functions_t {
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/**
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* Printf hook print function. This is actually of type "printf_function",
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* however glibc does it typedef to function, but uclibc to a pointer.
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* So we redefine it here.
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*/
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int (*print)(FILE *, const struct printf_info *info, const void *const *args);
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/**
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* Printf hook arginfo function, which is actually of type
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* "printf_arginfo_function".
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*/
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int (*arginfo)(const struct printf_info *info, size_t n, int *argtypes);
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};
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/**
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* Printf handler management.
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*/
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struct printf_hook_t {
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/**
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* Register a printf handler.
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*
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* @param spec printf hook format character
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* @param hook hook functions
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*/
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void (*add_handler)(printf_hook_t *this, char spec,
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printf_hook_functions_t hook);
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/**
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* Destroy a printf_hook instance.
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*/
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void (*destroy)(printf_hook_t *this);
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};
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/**
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* Create a printf_hook instance.
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*/
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printf_hook_t *printf_hook_create();
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#endif /* PRINTF_HOOK_H_ @}*/
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