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htonl

Syntax

 
#include <netinet/in.h>

unsigned long htonl(unsigned long val);

Description

This function converts from host formatted longs to network formatted longs. For the i386 and higher processors, this means that the bytes are swapped from 1234 order to 4321 order.

Return Value

The network-order value.

Portability

ANSI/ISO C No
POSIX No

Example

 
packet.ipaddr = htonl(ip);

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