SRC/udp_rev.c File Reference

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Detailed Description

Reverse DNS lookup

Definition in file udp_rev.c.

Go to the source code of this file.

Functions
size_t	query_init_ip4 (struct DNS_query *q, DWORD ip)
	Fill in the reverse lookup question packet.
BOOL	read_response (sock_type *s, char *name, size_t size)
	Read answer and extract host name.
BOOL	reverse_lookup (const struct DNS_query *q, size_t qlen, char *name, size_t size, DWORD nameserver)
	Translate an IPv4/IPv6 address into a host name.
int	reverse_lookup_myip (void)
	Do a reverse lookup on `my_ip_addr'.
int	do_rresolve (const struct DNS_query *q, size_t qlen, char *result, size_t size)
int	reverse_resolve_ip4 (DWORD ip, char *result, size_t size)
size_t	query_init_ip6 (struct DNS_query *q, const void *addr)
	Fill in the reverse lookup question packet.
int	reverse_resolve_ip6 (const void *addr, char *result, size_t size)

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Function Documentation

size_t query_init_ip4 (  struct DNS_query *  q, DWORD  ip )  [static]

Fill in the reverse lookup question packet. Return total length of request. Definition at line 59 of file udp_rev.c. References BYTE, DWORD, set_timeout(), and WORD.

size_t query_init_ip6 (  struct DNS_query *  q, const void *  addr )  [static]

Fill in the reverse lookup question packet. Return total length of request. Todo: Use "ip6.arpa" bitstring format ? Definition at line 370 of file udp_rev.c. References BYTE, ip6_address, set_timeout(), and WORD.

BOOL read_response (  sock_type *  s, char *  name, size_t  size )  [static]

Read answer and extract host name. Return values: 0  on error (dom_errno = DNS_CLI_ILL_RESP), 1  on success. Definition at line 124 of file udp_rev.c. References BYTE, sock_fastread(), and WORD.

BOOL reverse_lookup (  const struct DNS_query *  q, size_t  qlen, char *  name, size_t  size, DWORD  nameserver )  [static]

Translate an IPv4/IPv6 address into a host name. Returns 1 on success, 0 on error or timeout. Definition at line 225 of file udp_rev.c. References BYTE, chk_timeout(), dom_strerror(), DWORD, read_response(), set_timeout(), sock_close(), sock_dataready(), sock_write(), tcp_tick(), sock_type::udp, and udp_open().

int reverse_lookup_myip (  void   )

Do a reverse lookup on `my_ip_addr'. If successfull, replace `hostname' and `def_domain' with returned result. Definition at line 301 of file udp_rev.c. References my_ip_addr, and sethostname().

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