#include <sys/types.h>
#include <netinet/in.h>
#include <sys/socket.h>
#include <errno.h>
#include <string.h>
#include <ctype.h>
#include "ns_name.h"
#include "arpa/nameser.h"

Functions
int	MRns_name_len (const u_char eom, const u_char src)

int	MRns_name_ntop (const u_char src, char dst, size_t dstsiz)

int	MRns_name_pton (const char src, u_char dst, size_t dstsiz)

int	MRns_name_ntol (const u_char src, u_char dst, size_t dstsiz)

int	MRns_name_unpack (const u_char msg, const u_char eom, const u_char src, u_char dst, size_t dstsiz)

int	MRns_name_pack (const u_char src, u_char dst, unsigned dstsiz, const u_char dnptrs, const u_char lastdnptr)

int	MRns_name_uncompress (const u_char msg, const u_char eom, const u_char src, char dst, size_t dstsiz)

int	MRns_name_compress (const char src, u_char dst, size_t dstsiz, const u_char dnptrs, const u_char lastdnptr)

int	MRns_name_skip (const u_char *ptrptr, const u_char eom)

int	MRns_name_uncompress_list (const unsigned char buf, int buflen, char dst_buf, size_t dst_size)
	Creates a string of comma-separated domain-names from a compressed list.

int	MRns_name_compress_list (const char buf, int buflen, unsigned char compbuf, size_t compbuf_size)
	Creates a compressed list from a string of comma-separated domain-names.

Function Documentation

◆ MRns_name_compress()

int MRns_name_compress	(	const char *	src,
		u_char *	dst,
		size_t	dstsiz,
		const u_char **	dnptrs,
		const u_char **	lastdnptr )

Definition at line 535 of file ns_name.c.

◆ MRns_name_compress_list()

int MRns_name_compress_list	(	const char *	buf,
		int	buflen,
		unsigned char *	compbuf,
		size_t	compbuf_size )

Creates a compressed list from a string of comma-separated domain-names.

Produces a buffer containing a compressed data version of a list of domain-names extracted from a comma-separated string. Given a string containing:

one.two.com,three.four.com

It will compress this into:

03 6f 6e 65 03 74 77 6f 03 63 6f 6d 00 05 74 68 72 65 65 04 66 6f 75 72 c0 08

Parameters

buf	- buffer containing the uncompressed string of domain-names
buflen	- length of uncompressed string of domain-names
compbuf	- buffer to receive the compressed list
compbuf_size	- size of the compression buffer

Returns: the length of the compressed data when successful, -1 on error.

Definition at line 780 of file ns_name.c.

◆ MRns_name_len()

int MRns_name_len	(	const u_char *	eom,
		const u_char *	src )

Definition at line 57 of file ns_name.c.

◆ MRns_name_ntol()

int MRns_name_ntol	(	const u_char *	src,
		u_char *	dst,
		size_t	dstsiz )

Definition at line 283 of file ns_name.c.

◆ MRns_name_ntop()

int MRns_name_ntop	(	const u_char *	src,
		char *	dst,
		size_t	dstsiz )

Definition at line 93 of file ns_name.c.

◆ MRns_name_pack()

int MRns_name_pack	(	const u_char *	src,
		u_char *	dst,
		unsigned	dstsiz,
		const u_char **	dnptrs,
		const u_char **	lastdnptr )

Definition at line 415 of file ns_name.c.

◆ MRns_name_pton()

int MRns_name_pton	(	const char *	src,
		u_char *	dst,
		size_t	dstsiz )

Definition at line 174 of file ns_name.c.

◆ MRns_name_skip()

int MRns_name_skip	(	const u_char **	ptrptr,
		const u_char *	eom )

Definition at line 552 of file ns_name.c.

◆ MRns_name_uncompress()

int MRns_name_uncompress	(	const u_char *	msg,
		const u_char *	eom,
		const u_char *	src,
		char *	dst,
		size_t	dstsiz )

Definition at line 507 of file ns_name.c.

◆ MRns_name_uncompress_list()

int MRns_name_uncompress_list	(	const unsigned char *	buf,
		int	buflen,
		char *	dst_buf,
		size_t	dst_size )

Creates a string of comma-separated domain-names from a compressed list.

Produces a null-terminated string of comma-separated domain-names from a buffer containing a compressed list of domain-names. The names will be dotted and without enclosing quotes. For example: If a compressed list contains the follwoing two domain names:

a. one.two.com b. three.four.com

The compressed data will look like this: