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/*
This file is part of libmicrohttpd
Copyright (C) 2014-2016 Karlson2k (Evgeny Grin)
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
/**
* @file microhttpd/mhd_compat.h
* @brief Header for platform missing functions.
* @author Karlson2k (Evgeny Grin)
*
* Provides compatibility for platforms with some missing
* functionality.
* Any functions can be implemented as macro on some platforms
* unless explicitly marked otherwise.
* Any function argument can be skipped in macro, so avoid
* variable modification in function parameters.
*/
#ifndef MHD_COMPAT_H
#define MHD_COMPAT_H 1
#include "mhd_options.h"
#include <stdlib.h>
#ifdef HAVE_STRING_H /* for strerror() */
#include <string.h>
#endif /* HAVE_STRING_H */
/* MHD_strerror_ is strerror */
#define MHD_strerror_(errnum) strerror((errnum))
/* Platform-independent snprintf name */
#if defined(HAVE_SNPRINTF)
#define MHD_snprintf_ snprintf
#else /* ! HAVE_SNPRINTF */
#if defined(_WIN32)
/* Emulate snprintf function on W32 */
int W32_snprintf(char *__restrict s, size_t n, const char *__restrict format, ...);
#define MHD_snprintf_ W32_snprintf
#else /* ! _WIN32*/
#error Your platform does not support snprintf() and MHD does not know how to emulate it on your platform.
#endif /* ! _WIN32*/
#endif /* ! HAVE_SNPRINTF */
#ifdef HAVE_RANDOM
/**
* Generate pseudo random number at least 30-bit wide.
* @return pseudo random number at least 30-bit wide.
*/
#define MHD_random_() random()
#else /* HAVE_RANDOM */
#ifdef HAVE_RAND
/**
* Generate pseudo random number at least 30-bit wide.
* @return pseudo random number at least 30-bit wide.
*/
#define MHD_random_() ( (((long)rand()) << 15) + (long)rand() )
#endif /* HAVE_RAND */
#endif /* HAVE_RANDOM */
#endif /* MHD_COMPAT_H */
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