/src/dovecot/src/lib-dns/dns-util.h

Source
#ifndef DNS_UTIL_H
#define DNS_UTIL_H 1

static inline char
dns_tolower(char c)
{
  if (c >= 'A' && c <= 'Z')
    c+='a'-'A';
  return c;
}

/**
 * Will compare names in accordance with RFC4343
 */
int dns_compare(const char *a, const char *b) ATTR_PURE;
int dns_ncompare(const char *a, const char *b, size_t n) ATTR_PURE;

/**
 * Same as above but done by labels from right to left
 *
 * www.example.org and www.example.net would be compared as
 * org = net (return first difference)
 * example = example
 * www = www
 */
int dns_compare_labels(const char *a, const char *b) ATTR_PURE;

/**
 * Will match names in RFC4592 style
 *
 * this means *.foo.bar will match name.foo.bar
 * but *DOES NOT* match something.name.foo.bar
 */
int dns_match_wildcard(const char *name, const char *mask) ATTR_PURE;

#endif

Coverage Report

Created: 2026-07-16 07:09

Line	Count	Source
1		#ifndef DNS_UTIL_H
2		#define DNS_UTIL_H 1
3
4		static inline char
5		dns_tolower(char c)
6	0	{
7	0	if (c >= 'A' && c <= 'Z')
8	0	c+='a'-'A';
9	0	return c;
10	0	} Unexecuted instantiation: settings.c:dns_tolower Unexecuted instantiation: dns-util.c:dns_tolower
11
12		/**
13		* Will compare names in accordance with RFC4343
14		*/
15		int dns_compare(const char a, const char b) ATTR_PURE;
16		int dns_ncompare(const char a, const char b, size_t n) ATTR_PURE;
17
18		/**
19		* Same as above but done by labels from right to left
20		*
21		* www.example.org and www.example.net would be compared as
22		* org = net (return first difference)
23		* example = example
24		* www = www
25		*/
26		int dns_compare_labels(const char a, const char b) ATTR_PURE;
27
28		/**
29		* Will match names in RFC4592 style
30		*
31		* this means *.foo.bar will match name.foo.bar
32		* but DOES NOT match something.name.foo.bar
33		*/
34		int dns_match_wildcard(const char name, const char mask) ATTR_PURE;
35
36		#endif