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#include "uint_t.h"
/**
@file uint32p.c
@author djb
@source qmail
@brief packing/unpacking 32 bit integer to/from char string
*/
void uint32_pack(char s[4], uint32 u)
{
s[0] = u & 255;
u >>= 8;
s[1] = u & 255;
u >>= 8;
s[2] = u & 255;
s[3] = u >> 8;
}
void uint32_pack_big(char s[4], uint32 u)
{
s[3] = u & 255;
u >>= 8;
s[2] = u & 255;
u >>= 8;
s[1] = u & 255;
s[0] = u >> 8;
}
void uint32_unpack(char s[4], uint32 *u)
{
uint32 result;
result = (unsigned char)s[3];
result <<= 8;
result += (unsigned char)s[2];
result <<= 8;
result += (unsigned char)s[1];
result <<= 8;
result += (unsigned char)s[0];
*u = result;
}
void uint32_unpack_big(char s[4], uint32 *u)
{
uint32 result;
result = (unsigned char)s[0];
result <<= 8;
result += (unsigned char)s[1];
result <<= 8;
result += (unsigned char)s[2];
result <<= 8;
result += (unsigned char)s[3];
*u = result;
}
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