htonl()

Convert a 32-bit value from host-byte order to network-byte order

Synopsis:

#include <arpa/inet.h>

uint32_t htonl( uint32_t hostlong );

Arguments:

hostlong
The value that you want to convert.

Library:

libc

Use the -l c option to qcc to link against this library. This library is usually included automatically.

Description:

The htonl() function converts a 32-bit value from host-byte order to network-byte order.

You typically use this routine in conjunction with the internet addresses and ports that gethostbyname() and getservent() return.

Returns:

The value in network-byte order.

Classification:

POSIX 1003.1

Safety:  
Cancellation point No
Interrupt handler Yes
Signal handler Yes
Thread Yes

Last modified: 2013-12-23

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