NAME    [Toc]    [Back]

       htonl  - Convert an unsigned 32-bit integer from host byte
       order to Internet network-byte order

SYNOPSIS    [Toc]    [Back]

       #include <arpa/inet.h>

       in_addr_t htonl(
               in_addr_t hostint );

LIBRARY    [Toc]    [Back]

       Standard C Library (libc)

STANDARDS    [Toc]    [Back]

       Interfaces documented on this reference  page  conform  to
       industry standards as follows:

       htonl():  XNS4.0, XNS5.0

       Refer to the standards(5) reference page for more information
 about industry standards and associated tags.

PARAMETERS    [Toc]    [Back]

       Specifies a 32-bit integer in host byte order.

DESCRIPTION    [Toc]    [Back]

       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    [Toc]    [Back]

       Upon successful completion, the htonl() function returns a
       32-bit integer in Internet network-byte order.

ERRORS    [Toc]    [Back]

       Current industry standards do not define error values  for
       the htonl() function.

SEE ALSO    [Toc]    [Back]

       Functions:    endhostent(3),    endservent(3),   htons(3),
       ntohl(3), ntohs(3)

       Standards: standards(5)

       Network Programmer's Guide



                                                         htonl(3)