File: util.h

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#ifndef UTIL_H
#define UTIL_H

#define htons(x) ( ((x)<<8) | (((x)>>8)&0xFF) )
#define ntohs(x) htons(x)

#define htonl(x) ( ((x)<<24 & 0xFF000000UL) | \
                   ((x)<< 8 & 0x00FF0000UL) | \
                   ((x)>> 8 & 0x0000FF00UL) | \
                   ((x)>>24 & 0x000000FFUL) )
#define ntohl(x) htonl(x)

#endif