FreeBSD manual

download PDF document: ne_iaddr_parse.3.pdf

NE_IADDR_MAKE(3) neon API reference NE_IADDR_MAKE(3) NAME ne_iaddr_make, ne_iaddr_cmp, ne_iaddr_print, ne_iaddr_typeof, ne_iaddr_parse, ne_iaddr_raw, ne_iaddr_reverse, ne_iaddr_free - functions to manipulate network addresses SYNOPSIS #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); ne_inet_addr *ne_iaddr_parse(const char *address, ne_iaddr_type type); unsigned char *ne_iaddr_raw(const ne_inet_addr *ia, unsigned char *buffer); int ne_iaddr_reverse(const ne_inet_addr *ia, char *buffer, size_t buflen); 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 compares two network address objects; returning zero only if they are identical. The objects need not have 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 prints a 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 object. ne_iaddr_parse parses a string representation of a network address (such as "127.0.0.1" and creates a network address object to represent the parsed address. ne_iaddr_raw writes the raw byte representation of a network address to the provided buffer. The bytes are written in network byte order; the always NUL-terminated. 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. ne_iaddr_parse returns a network address object on success, or NULL on failure to parse the address parameter. ne_iaddr_reverse returns zero on success or non-zero if no hostname is associated with the address. ne_iaddr_raw returns the buffer parameter, 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 neon 0.32.4 11 September 2022 NE_IADDR_MAKE(3)