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host2net.h
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/* host2net.h - Endian conversion macros
* Copyright (C) 1998, 2014, 2015 Werner Koch
*
* This file is part of GnuPG.
*
* This file is free software; you can redistribute it and/or modify
* it under the terms of either
*
* - the GNU Lesser General Public License as published by the Free
* Software Foundation; either version 3 of the License, or (at
* your option) any later version.
*
* or
*
* - 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.
*
* or both in parallel, as here.
*
* This file 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.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, see <https://www.gnu.org/licenses/>.
*/
#ifndef GNUPG_COMMON_HOST2NET_H
#define GNUPG_COMMON_HOST2NET_H
#include "types.h"
#define ulongtobuf( p, a ) do { \
((byte*)p)[0] = a >> 24; \
((byte*)p)[1] = a >> 16; \
((byte*)p)[2] = a >> 8; \
((byte*)p)[3] = a ; \
} while(0)
#define ushorttobuf( p, a ) do { \
((byte*)p)[0] = a >> 8; \
((byte*)p)[1] = a ; \
} while(0)
static inline unsigned long
buf16_to_ulong (const void *buffer)
{
const unsigned char *p = buffer;
return (((unsigned long)p[0] << 8) | p[1]);
}
static inline unsigned int
buf16_to_uint (const void *buffer)
{
const unsigned char *p = buffer;
return (((unsigned int)p[0] << 8) | p[1]);
}
static inline unsigned short
buf16_to_ushort (const void *buffer)
{
const unsigned char *p = buffer;
return (((unsigned short)p[0] << 8) | p[1]);
}
static inline u16
buf16_to_u16 (const void *buffer)
{
const unsigned char *p = buffer;
return (((u16)p[0] << 8) | p[1]);
}
static inline size_t
buf32_to_size_t (const void *buffer)
{
const unsigned char *p = buffer;
return (((size_t)p[0] << 24) | (p[1] << 16) | (p[2] << 8) | p[3]);
}
static inline unsigned long
buf32_to_ulong (const void *buffer)
{
const unsigned char *p = buffer;
return (((unsigned long)p[0] << 24) | (p[1] << 16) | (p[2] << 8) | p[3]);
}
static inline unsigned int
buf32_to_uint (const void *buffer)
{
const unsigned char *p = buffer;
return (((unsigned int)p[0] << 24) | (p[1] << 16) | (p[2] << 8) | p[3]);
}
static inline u32
buf32_to_u32 (const void *buffer)
{
const unsigned char *p = buffer;
return (((u32)p[0] << 24) | (p[1] << 16) | (p[2] << 8) | p[3]);
}
#endif /*GNUPG_COMMON_HOST2NET_H*/

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