inet_pton — Create a network address structure
#include <sys/types.h> #include <sys/socket.h> #include <arpa/inet.h>
int
inet_pton( |
int | af, |
| const char * | src, | |
| void * | dst); |
This function converts the character string src into a network address
structure in the af
address family, then copies the network address structure to
dst.
inet_pton() extends the
inet_addr(3) function to
support multiple address families, inet_addr(3) is now
considered to be deprecated in favor of inet_pton(). The following address families
are currently supported:
AF_INETsrc points
to a character string containing an IPv4 network
address in the dotted-quad format, "ddd.ddd.ddd.ddd". The
address is converted to a struct in_addr and copied to
dst, which must
be sizeof(struct
in_addr) bytes long.
AF_INET6src points
to a character string containing an IPv6 network
address in any allowed IPv6 address format. The address
is converted to a struct
in6_addr and copied to dst, which must be
sizeof(struct
in6_addr) bytes long.
Certain legacy hex and octal formats of AF_INET addresses are not supported by
inet_pton(), which rejects
them.
inet_pton() returns a
negative value and sets errno to
EAFNOSUPPORT if af does not contain a valid
address family. 0 is returned if src does not contain a
character string representing a valid network address in the
specified address family. A positive value is returned if the
network address was successfully converted.
AF_INET6 does not recognize
IPv4 addresses. An explicit IPv6-mapped IPv4 address must be
supplied in src
instead.
This page is part of release 2.79 of the Linux man-pages project. A
description of the project, and information about reporting
bugs, can be found at
http://www.kernel.org/doc/man-pages/.
|
Copyright 2000 Sam Varshavchik <mrsamcourier-mta.com> Permission is granted to make and distribute verbatim copies of this manual provided the copyright notice and this permission notice are preserved on all copies. Permission is granted to copy and distribute modified versions of this manual under the conditions for verbatim copying, provided that the entire resulting derived work is distributed under the terms of a permission notice identical to this one. Since the Linux kernel and libraries are constantly changing, this manual page may be incorrect or out-of-date. The author(s) assume no responsibility for errors or omissions, or for damages resulting from the use of the information contained herein. The author(s) may not have taken the same level of care in the production of this manual, which is licensed free of charge, as they might when working professionally. Formatted or processed versions of this manual, if unaccompanied by the source, must acknowledge the copyright and authors of this work. References: RFC 2553 |