Read an unsigned little-endian 32-bit integer
#include <uint32.h>
uint32 u;
void uint32_unpack(const char s[4],uint32 *u);
uint32 is a 32-bit unsigned integer type, normally either unsigned int or unsigned long.
uint32_unpack portably reads a uint32 as stored on a little-endian architecture from s and writes it into u in the native byte order.