htonl(3) Library Functions Manual htonl(3)
NAME
htonl - Converts an unsigned 32-bit integer from host byte order to Internet network-byte order
LIBRARY
Standard C Library (libc.so, libc.a)
SYNOPSIS
#include <arpa/inet.h> in_addr_t htonl ( in_addr_t hostint) ;
STANDARDS
Interfaces documented on this reference page conform to industry standards as follows:
htonl(): XNS4.0
Refer to the standards(5) reference page for more information about industry standards and associated tags.
PARAMETERS
Specifies a 32-bit integer in host byte order.
DESCRIPTION
The htonl() (host-to-network long) function converts an unsigned 32-bit integer from host byte order to Internet network-byte order.
The Internet network requires address and port reference data in network-byte order. Use the htonl() function to convert address and port
integers from Internet host byte order to Internet network-byte ordered integers.
RETURN VALUES
Upon successful completion, the htonl() function returns a 32-bit integer in Internet network-byte order.
ERRORS
Current industry standards do not define error values for the htonl() function.
RELATED INFORMATION
Functions: endhostent(3), endservent(3), htons(3), ntohl(3), ntohs(3)
Standards: standards(5)
Network Programmer's Guide delim off
htonl(3)
