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/**
* @file printf_hook.c
*
* @brief Printf hook definitions and arginfo functions.
*
*/
/*
* Copyright (C) 2006 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.
*/
#include "printf_hook.h"
/**
* arginfo handler in printf() pointer
*/
int arginfo_ptr(const struct printf_info *info, size_t n, int *argtypes)
{
if (n > 0)
{
argtypes[0] = PA_POINTER;
}
return 1;
}
/**
* arginfo handler for two prt arguments
*/
int arginfo_ptr_ptr(const struct printf_info *info, size_t n, int *argtypes)
{
if (n > 1)
{
argtypes[0] = PA_POINTER;
argtypes[1] = PA_POINTER;
}
return 2;
}
/**
* arginfo handler for one ptr, one int
*/
int arginfo_ptr_int(const struct printf_info *info, size_t n, int *argtypes)
{
if (n > 1)
{
argtypes[0] = PA_POINTER;
argtypes[1] = PA_INT;
}
return 2;
}
/**
* arginfo handler for two int arguments
*/
int arginfo_int_int(const struct printf_info *info, size_t n, int *argtypes)
{
if (n > 1)
{
argtypes[0] = PA_INT;
argtypes[1] = PA_INT;
}
return 2;
}
/**
* special arginfo handler respecting alt flag
*/
int arginfo_int_alt_int_int(const struct printf_info *info, size_t n, int *argtypes)
{
if (info->alt)
{
if (n > 1)
{
argtypes[0] = PA_INT;
argtypes[1] = PA_INT;
}
return 2;
}
if (n > 0)
{
argtypes[0] = PA_INT;
}
return 1;
}
/**
* special arginfo handler respecting alt flag
*/
int arginfo_ptr_alt_ptr_int(const struct printf_info *info, size_t n, int *argtypes)
{
if (info->alt)
{
if (n > 1)
{
argtypes[0] = PA_POINTER;
argtypes[1] = PA_INT;
}
return 2;
}
if (n > 0)
{
argtypes[0] = PA_POINTER;
}
return 1;
}
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