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ne_iaddr_make
Langue: en
Version: 11 January 2010 (ubuntu - 24/10/10)
Section: 3 (Bibliothèques de fonctions)
NAME
ne_iaddr_make, ne_iaddr_cmp, ne_iaddr_print, ne_iaddr_typeof, ne_iaddr_free - functions to manipulate and compare network addressesSYNOPSIS
#include <ne_socket.h> typedef enum { ne_iaddr_ipv4 = 0, ne_iaddr_ipv6 } ne_iaddr_type;
- ne_inet_addr *ne_iaddr_make(ne_iaddr_type type, const unsigned char *raw);
- int ne_iaddr_cmp(const ne_inet_addr *ia1, const ne_inet_addr *ia2);
- char *ne_iaddr_print(const ne_inet_addr *ia, char *buffer, size_t bufsiz);
- ne_iaddr_type ne_iaddr_typeof(const ne_inet_addr *ia);
- void ne_iaddr_free(const ne_inet_addr *ia);
DESCRIPTION
ne_iaddr_make
- creates an ne_inet_addr object from a raw binary network address; for instance the four bytes 0x7f 0x00 0x00 0x01 represent the IPv4 address 127.0.0.1. The object returned is suitable for passing to ne_sock_connect. A binary IPv4 address contains four bytes; a binary IPv6 address contains sixteen bytes; addresses passed must be in network byte order.
ne_iaddr_cmp can be used to compare two network addresses; returning zero only if they are identical. The addresses need not be of the same address type; if the addresses are not of the same type, the return value is guaranteed to be non-zero.
ne_iaddr_print can be used to print the human-readable string representation of a network address into a buffer, for instance the string "127.0.0.1".
ne_iaddr_typeof returns the type of the given network address.
ne_iaddr_free releases the memory associated with a network address object.
RETURN VALUE
ne_iaddr_make returns NULL if the address type passed is not supported (for instance on a platform which does not support IPv6).
ne_iaddr_print returns the buffer pointer, and never NULL.
EXAMPLES
The following example connects a socket to port 80 at the address 127.0.0.1.
-
unsigned char addr[] = "\0x7f\0x00\0x00\0x01"; ne_inet_addr *ia; ia = ne_iaddr_make(ne_iaddr_ipv4, addr); if (ia != NULL) { ne_socket *sock = ne_sock_connect(ia, 80); ne_iaddr_free(ia); /* ... */ } else { /* ... */ }
SEE ALSO
ne_addr_resolve
AUTHOR
Joe Orton <neon@lists.manyfish.co.uk>
- Author.
COPYRIGHT
Contenus ©2006-2024 Benjamin Poulain
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