Systemd/src/basic/in-addr-util.h
Lennart Poettering 0c69794138 tree-wide: remove Lennart's copyright lines
These lines are generally out-of-date, incomplete and unnecessary. With
SPDX and git repository much more accurate and fine grained information
about licensing and authorship is available, hence let's drop the
per-file copyright notice. Of course, removing copyright lines of others
is problematic, hence this commit only removes my own lines and leaves
all others untouched. It might be nicer if sooner or later those could
go away too, making git the only and accurate source of authorship
information.
2018-06-14 10:20:20 +02:00

56 lines
2.5 KiB
C

/* SPDX-License-Identifier: LGPL-2.1+ */
#pragma once
#include <netinet/in.h>
#include <stddef.h>
#include <sys/socket.h>
#include "macro.h"
#include "util.h"
union in_addr_union {
struct in_addr in;
struct in6_addr in6;
};
struct in_addr_data {
int family;
union in_addr_union address;
};
bool in4_addr_is_null(const struct in_addr *a);
int in_addr_is_null(int family, const union in_addr_union *u);
int in_addr_is_multicast(int family, const union in_addr_union *u);
bool in4_addr_is_link_local(const struct in_addr *a);
int in_addr_is_link_local(int family, const union in_addr_union *u);
bool in4_addr_is_localhost(const struct in_addr *a);
int in_addr_is_localhost(int family, const union in_addr_union *u);
int in_addr_equal(int family, const union in_addr_union *a, const union in_addr_union *b);
int in_addr_prefix_intersect(int family, const union in_addr_union *a, unsigned aprefixlen, const union in_addr_union *b, unsigned bprefixlen);
int in_addr_prefix_next(int family, union in_addr_union *u, unsigned prefixlen);
int in_addr_to_string(int family, const union in_addr_union *u, char **ret);
int in_addr_ifindex_to_string(int family, const union in_addr_union *u, int ifindex, char **ret);
int in_addr_from_string(int family, const char *s, union in_addr_union *ret);
int in_addr_from_string_auto(const char *s, int *ret_family, union in_addr_union *ret);
int in_addr_ifindex_from_string_auto(const char *s, int *family, union in_addr_union *ret, int *ifindex);
unsigned char in4_addr_netmask_to_prefixlen(const struct in_addr *addr);
struct in_addr* in4_addr_prefixlen_to_netmask(struct in_addr *addr, unsigned char prefixlen);
int in4_addr_default_prefixlen(const struct in_addr *addr, unsigned char *prefixlen);
int in4_addr_default_subnet_mask(const struct in_addr *addr, struct in_addr *mask);
int in_addr_mask(int family, union in_addr_union *addr, unsigned char prefixlen);
int in_addr_prefix_covers(int family, const union in_addr_union *prefix, unsigned char prefixlen, const union in_addr_union *address);
int in_addr_parse_prefixlen(int family, const char *p, unsigned char *ret);
int in_addr_prefix_from_string(const char *p, int family, union in_addr_union *ret_prefix, unsigned char *ret_prefixlen);
int in_addr_prefix_from_string_auto(const char *p, int *ret_family, union in_addr_union *ret_prefix, unsigned char *ret_prefixlen);
static inline size_t FAMILY_ADDRESS_SIZE(int family) {
assert(IN_SET(family, AF_INET, AF_INET6));
return family == AF_INET6 ? 16 : 4;
}
#define IN_ADDR_NULL ((union in_addr_union) {})