match-hostname.c File Reference

#include "elinks.h"
#include "intl/charsets.h"
#include "network/ssl/match-hostname.h"
#include "util/conv.h"
#include "util/error.h"
#include "util/string.h"

Include dependency graph for match-hostname.c:

Functions
int	match_hostname_pattern (const char *hostname, size_t hostname_length, const char *pattern, size_t pattern_length)
	Checks whether a host name matches a pattern that may contain wildcards.

Function Documentation

match_hostname_pattern()

int match_hostname_pattern	(	const char *	hostname,
		size_t	hostname_length,
		const char *	pattern,
		size_t	pattern_length )

Checks whether a host name matches a pattern that may contain wildcards.

Parameters

[in]	hostname	The host name to which the user wanted to connect. Should be in UTF-8 and need not be null-terminated.
[in]	hostname_length	The length of hostname, in bytes.
[in]	pattern	A pattern that the host name might match. Should be in UTF-8 and need not be null-terminated. The pattern may contain wildcards, as specified in RFC 2818 section 3.1.
[in]	pattern_length	The length of pattern, in bytes.

Returns

Nonzero if the host name matches. Zero if it doesn't.

According to RFC 2818 section 3.1, '' matches any number of characters except '.'. For example, "*r</em>.example.org" matches "random.example.org" or "history.example.org" but not "frozen.fruit.example.org".

This function does not allocate memory, and consumes at most O(hostname_length * pattern_length) time.