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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

See also:

gethostbyname(), getservent(), htons(), ntohl(), ntohs()

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