15263807472

/* SPDX-License-Identifier: LGPL-2.1-or-later */
#pragma once

#include <netinet/in.h>

#include "forward.h"

union in_addr_union {
        struct in_addr in;
        struct in6_addr in6;
        uint8_t bytes[CONST_MAX(sizeof(struct in_addr), sizeof(struct in6_addr))];
};

struct in_addr_data {
        int family;
        union in_addr_union address;
};

bool in4_addr_is_null(const struct in_addr *a);
static inline bool in4_addr_is_set(const struct in_addr *a) {
        return !in4_addr_is_null(a);
}
bool in6_addr_is_null(const struct in6_addr *a);
static inline bool in6_addr_is_set(const struct in6_addr *a) {
        return !in6_addr_is_null(a);
}
int in_addr_is_null(int family, const union in_addr_union *u);
static inline bool in_addr_is_set(int family, const union in_addr_union *u) {
        return in_addr_is_null(family, u) == 0;
}
static inline int in_addr_data_is_null(const struct in_addr_data *a) {
        assert(a);
        return in_addr_is_null(a->family, &a->address);
}
static inline bool in_addr_data_is_set(const struct in_addr_data *a) {
        return in_addr_data_is_null(a);
}

bool in4_addr_is_multicast(const struct in_addr *a);
bool in6_addr_is_multicast(const struct in6_addr *a);
int in_addr_is_multicast(int family, const union in_addr_union *u);

bool in4_addr_is_link_local(const struct in_addr *a);
bool in4_addr_is_link_local_dynamic(const struct in_addr *a);
bool in6_addr_is_link_local(const struct in6_addr *a);
int in_addr_is_link_local(int family, const union in_addr_union *u);
bool in6_addr_is_link_local_all_nodes(const struct in6_addr *a);

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_is_localhost_one(int family, const union in_addr_union *u);

bool in4_addr_is_local_multicast(const struct in_addr *a);
bool in4_addr_is_non_local(const struct in_addr *a);
bool in6_addr_is_ipv4_mapped_address(const struct in6_addr *a);

bool in4_addr_equal(const struct in_addr *a, const struct in_addr *b);
bool in6_addr_equal(const struct in6_addr *a, const struct in6_addr *b);
int in_addr_equal(int family, const union in_addr_union *a, const union in_addr_union *b);
bool in4_addr_prefix_intersect(
                const struct in_addr *a,
                unsigned aprefixlen,
                const struct in_addr *b,
                unsigned bprefixlen);
bool in6_addr_prefix_intersect(
                const struct in6_addr *a,
                unsigned aprefixlen,
                const struct in6_addr *b,
                unsigned bprefixlen);
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_prefix_nth(int family, union in_addr_union *u, unsigned prefixlen, uint64_t nth);
int in_addr_random_prefix(int family, union in_addr_union *u, unsigned prefixlen_fixed_part, unsigned prefixlen);
int in_addr_prefix_range(
                int family,
                const union in_addr_union *in,
                unsigned prefixlen,
                union in_addr_union *ret_start,
                union in_addr_union *ret_end);

int in_addr_to_string(int family, const union in_addr_union *u, char **ret);
static inline int in6_addr_to_string(const struct in6_addr *u, char **ret) {
        return in_addr_to_string(AF_INET6, (const union in_addr_union*) u, ret);
}

const char* typesafe_inet_ntop(int family, const union in_addr_union *a, char *buf, size_t len);
const char* typesafe_inet_ntop4(const struct in_addr *a, char *buf, size_t len);
const char* typesafe_inet_ntop6(const struct in6_addr *a, char *buf, size_t len);

/* Note: the lifetime of the compound literal is the immediately surrounding block,
 * see C11 §6.5.2.5, and
 * https://stackoverflow.com/questions/34880638/compound-literal-lifetime-and-if-blocks */
#define IN_ADDR_MAX CONST_MAX(INET_ADDRSTRLEN, INET6_ADDRSTRLEN)
#define IN_ADDR_TO_STRING(family, addr) typesafe_inet_ntop(family, addr, (char[IN_ADDR_MAX]){}, IN_ADDR_MAX)
#define IN4_ADDR_TO_STRING(addr) typesafe_inet_ntop4(addr, (char[INET_ADDRSTRLEN]){}, INET_ADDRSTRLEN)
#define IN6_ADDR_TO_STRING(addr) typesafe_inet_ntop6(addr, (char[INET6_ADDRSTRLEN]){}, INET6_ADDRSTRLEN)

int in_addr_prefix_to_string(
                int family,
                const union in_addr_union *u,
                unsigned prefixlen,
                char *buf,
                size_t buf_len);

static inline const char* _in_addr_prefix_to_string(
                int family,
                const union in_addr_union *u,
                unsigned prefixlen,
                char *buf,
                size_t buf_len) {
        /* We assume that this is called with an appropriately sized buffer and can never fail. */
        assert_se(in_addr_prefix_to_string(family, u, prefixlen, buf, buf_len) == 0);
        return buf;
}
static inline const char* _in4_addr_prefix_to_string(const struct in_addr *a, unsigned prefixlen, char *buf, size_t buf_len) {
        return _in_addr_prefix_to_string(AF_INET, (const union in_addr_union *) a, prefixlen, buf, buf_len);
}
static inline const char* _in6_addr_prefix_to_string(const struct in6_addr *a, unsigned prefixlen, char *buf, size_t buf_len) {
        return _in_addr_prefix_to_string(AF_INET6, (const union in_addr_union *) a, prefixlen, buf, buf_len);
}

#define PREFIX_SUFFIX_MAX (1 + DECIMAL_STR_MAX(unsigned))
#define IN_ADDR_PREFIX_TO_STRING(family, addr, prefixlen) \
        _in_addr_prefix_to_string(family, addr, prefixlen, (char[IN_ADDR_MAX + PREFIX_SUFFIX_MAX]){}, IN_ADDR_MAX + PREFIX_SUFFIX_MAX)
#define IN4_ADDR_PREFIX_TO_STRING(addr, prefixlen) \
        _in4_addr_prefix_to_string(addr, prefixlen, (char[INET_ADDRSTRLEN + PREFIX_SUFFIX_MAX]){}, INET_ADDRSTRLEN + PREFIX_SUFFIX_MAX)
#define IN6_ADDR_PREFIX_TO_STRING(addr, prefixlen) \
        _in6_addr_prefix_to_string(addr, prefixlen, (char[INET6_ADDRSTRLEN + PREFIX_SUFFIX_MAX]){}, INET6_ADDRSTRLEN + PREFIX_SUFFIX_MAX)

int in_addr_port_ifindex_name_to_string(int family, const union in_addr_union *u, uint16_t port, int ifindex, const char *server_name, char **ret);
static inline int in_addr_ifindex_to_string(int family, const union in_addr_union *u, int ifindex, char **ret) {
        return in_addr_port_ifindex_name_to_string(family, u, 0, ifindex, NULL, ret);
}
static inline int in_addr_port_to_string(int family, const union in_addr_union *u, uint16_t port, char **ret) {
        return in_addr_port_ifindex_name_to_string(family, u, port, 0, NULL, 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);

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);
struct in6_addr* in6_addr_prefixlen_to_netmask(struct in6_addr *addr, unsigned char prefixlen);
int in_addr_prefixlen_to_netmask(int family, union in_addr_union *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 in4_addr_mask(struct in_addr *addr, unsigned char prefixlen);
int in6_addr_mask(struct in6_addr *addr, unsigned char prefixlen);
int in_addr_mask(int family, union in_addr_union *addr, unsigned char prefixlen);
int in4_addr_prefix_covers_full(const struct in_addr *prefix, unsigned char prefixlen, const struct in_addr *address, unsigned char address_prefixlen);
int in6_addr_prefix_covers_full(const struct in6_addr *prefix, unsigned char prefixlen, const struct in6_addr *address, unsigned char address_prefixlen);
int in_addr_prefix_covers_full(int family, const union in_addr_union *prefix, unsigned char prefixlen, const union in_addr_union *address, unsigned char address_prefixlen);
static inline int in4_addr_prefix_covers(const struct in_addr *prefix, unsigned char prefixlen, const struct in_addr *address) {
        return in4_addr_prefix_covers_full(prefix, prefixlen, address, 32);
}
static inline int in6_addr_prefix_covers(const struct in6_addr *prefix, unsigned char prefixlen, const struct in6_addr *address) {
        return in6_addr_prefix_covers_full(prefix, prefixlen, address, 128);
}
static inline int in_addr_prefix_covers(int family, const union in_addr_union *prefix, unsigned char prefixlen, const union in_addr_union *address) {
        return in_addr_prefix_covers_full(family, prefix, prefixlen, address, family == AF_INET ? 32 : family == AF_INET6 ? 128 : 0);
}
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);

typedef enum InAddrPrefixLenMode {
        PREFIXLEN_FULL,   /* Default to prefixlen of address size, 32 for IPv4 or 128 for IPv6, if not specified. */
        PREFIXLEN_REFUSE, /* Fail with -ENOANO if prefixlen is not specified. */
} InAddrPrefixLenMode;

int in_addr_prefix_from_string_auto_full(const char *p, InAddrPrefixLenMode mode, int *ret_family, union in_addr_union *ret_prefix, unsigned char *ret_prefixlen);
static inline int in_addr_prefix_from_string_auto(const char *p, int *ret_family, union in_addr_union *ret_prefix, unsigned char *ret_prefixlen) {
        return in_addr_prefix_from_string_auto_full(p, PREFIXLEN_FULL, ret_family, ret_prefix, ret_prefixlen);
}

static inline size_t FAMILY_ADDRESS_SIZE(int family) {
        switch (family) {
                case AF_INET:
                        return 4;
                case AF_INET6:
                        return 16;
                default:
                        assert_not_reached();
        }
}

#define FAMILY_ADDRESS_SIZE_SAFE(f)                                     \
        ({                                                              \
                int _f = (f);                                           \
                _f == AF_INET ? sizeof(struct in_addr) :                \
                _f == AF_INET6 ? sizeof(struct in6_addr) : 0;           \
        })

/* Workaround for clang, explicitly specify the maximum-size element here.
 * See also oss-fuzz#11344. */
#define IN_ADDR_NULL ((union in_addr_union) { .in6 = {} })

void in_addr_hash_func(const union in_addr_union *u, int family, struct siphash *state);
void in_addr_data_hash_func(const struct in_addr_data *a, struct siphash *state);
int in_addr_data_compare_func(const struct in_addr_data *x, const struct in_addr_data *y);
void in6_addr_hash_func(const struct in6_addr *addr, struct siphash *state);
int in6_addr_compare_func(const struct in6_addr *a, const struct in6_addr *b);

extern const struct hash_ops in_addr_data_hash_ops;
extern const struct hash_ops in_addr_data_hash_ops_free;
extern const struct hash_ops in6_addr_hash_ops;
extern const struct hash_ops in6_addr_hash_ops_free;

static inline void PTR_TO_IN4_ADDR(const void *p, struct in_addr *ret) {
        assert(ret);
        ret->s_addr = (uint32_t) ((uintptr_t) p);
}

static inline void* IN4_ADDR_TO_PTR(const struct in_addr *a) {
        assert(a);
        return (void*) ((uintptr_t) a->s_addr);
}

#define IPV4_ADDRESS_FMT_STR     "%u.%u.%u.%u"
#define IPV4_ADDRESS_FMT_VAL(address)              \
        be32toh((address).s_addr) >> 24,           \
        (be32toh((address).s_addr) >> 16) & 0xFFu, \
        (be32toh((address).s_addr) >> 8) & 0xFFu,  \
        be32toh((address).s_addr) & 0xFFu

1	/* SPDX-License-Identifier: LGPL-2.1-or-later */
2	#pragma once
3
4	#include <netinet/in.h>
5
6	#include "forward.h"
7
8	union in_addr_union {
9	struct in_addr in;
10	struct in6_addr in6;
11	uint8_t bytes[CONST_MAX(sizeof(struct in_addr), sizeof(struct in6_addr))];
12	};
13
14	struct in_addr_data {
15	int family;
16	union in_addr_union address;
17	};
18
19	bool in4_addr_is_null(const struct in_addr *a);
20	static inline bool in4_addr_is_set(const struct in_addr *a) {	67,263✔
21	return !in4_addr_is_null(a);	67,263✔
22	}
23	bool in6_addr_is_null(const struct in6_addr *a);
24	static inline bool in6_addr_is_set(const struct in6_addr *a) {	10,455✔
25	return !in6_addr_is_null(a);	10,455✔
26	}
27	int in_addr_is_null(int family, const union in_addr_union *u);
28	static inline bool in_addr_is_set(int family, const union in_addr_union *u) {	104,016✔
29	return in_addr_is_null(family, u) == 0;	104,016✔
30	}
31	static inline int in_addr_data_is_null(const struct in_addr_data *a) {	212✔
32	assert(a);	212✔
33	return in_addr_is_null(a->family, &a->address);	212✔
34	}
35	static inline bool in_addr_data_is_set(const struct in_addr_data *a) {
36	return in_addr_data_is_null(a);
37	}
38
39	bool in4_addr_is_multicast(const struct in_addr *a);
40	bool in6_addr_is_multicast(const struct in6_addr *a);
41	int in_addr_is_multicast(int family, const union in_addr_union *u);
42
43	bool in4_addr_is_link_local(const struct in_addr *a);
44	bool in4_addr_is_link_local_dynamic(const struct in_addr *a);
45	bool in6_addr_is_link_local(const struct in6_addr *a);
46	int in_addr_is_link_local(int family, const union in_addr_union *u);
47	bool in6_addr_is_link_local_all_nodes(const struct in6_addr *a);
48
49	bool in4_addr_is_localhost(const struct in_addr *a);
50	int in_addr_is_localhost(int family, const union in_addr_union *u);
51	int in_addr_is_localhost_one(int family, const union in_addr_union *u);
52
53	bool in4_addr_is_local_multicast(const struct in_addr *a);
54	bool in4_addr_is_non_local(const struct in_addr *a);
55	bool in6_addr_is_ipv4_mapped_address(const struct in6_addr *a);
56
57	bool in4_addr_equal(const struct in_addr a, const struct in_addr b);
58	bool in6_addr_equal(const struct in6_addr a, const struct in6_addr b);
59	int in_addr_equal(int family, const union in_addr_union a, const union in_addr_union b);
60	bool in4_addr_prefix_intersect(
61	const struct in_addr *a,
62	unsigned aprefixlen,
63	const struct in_addr *b,
64	unsigned bprefixlen);
65	bool in6_addr_prefix_intersect(
66	const struct in6_addr *a,
67	unsigned aprefixlen,
68	const struct in6_addr *b,
69	unsigned bprefixlen);
70	int in_addr_prefix_intersect(
71	int family,
72	const union in_addr_union *a,
73	unsigned aprefixlen,
74	const union in_addr_union *b,
75	unsigned bprefixlen);
76	int in_addr_prefix_next(int family, union in_addr_union *u, unsigned prefixlen);
77	int in_addr_prefix_nth(int family, union in_addr_union *u, unsigned prefixlen, uint64_t nth);
78	int in_addr_random_prefix(int family, union in_addr_union *u, unsigned prefixlen_fixed_part, unsigned prefixlen);
79	int in_addr_prefix_range(
80	int family,
81	const union in_addr_union *in,
82	unsigned prefixlen,
83	union in_addr_union *ret_start,
84	union in_addr_union *ret_end);
85
86	int in_addr_to_string(int family, const union in_addr_union u, char *ret);
87	static inline int in6_addr_to_string(const struct in6_addr u, char *ret) {
88	return in_addr_to_string(AF_INET6, (const union in_addr_union*) u, ret);
89	}
90
91	const char* typesafe_inet_ntop(int family, const union in_addr_union a, char buf, size_t len);
92	const char* typesafe_inet_ntop4(const struct in_addr a, char buf, size_t len);
93	const char* typesafe_inet_ntop6(const struct in6_addr a, char buf, size_t len);
94
95	/* Note: the lifetime of the compound literal is the immediately surrounding block,
96	* see C11 §6.5.2.5, and
97	* https://stackoverflow.com/questions/34880638/compound-literal-lifetime-and-if-blocks */
98	#define IN_ADDR_MAX CONST_MAX(INET_ADDRSTRLEN, INET6_ADDRSTRLEN)
99	#define IN_ADDR_TO_STRING(family, addr) typesafe_inet_ntop(family, addr, (char[IN_ADDR_MAX]){}, IN_ADDR_MAX)
100	#define IN4_ADDR_TO_STRING(addr) typesafe_inet_ntop4(addr, (char[INET_ADDRSTRLEN]){}, INET_ADDRSTRLEN)
101	#define IN6_ADDR_TO_STRING(addr) typesafe_inet_ntop6(addr, (char[INET6_ADDRSTRLEN]){}, INET6_ADDRSTRLEN)
102
103	int in_addr_prefix_to_string(
104	int family,
105	const union in_addr_union *u,
106	unsigned prefixlen,
107	char *buf,
108	size_t buf_len);
109
110	static inline const char* _in_addr_prefix_to_string(	414,547✔
111	int family,
112	const union in_addr_union *u,
113	unsigned prefixlen,
114	char *buf,
115	size_t buf_len) {
116	/* We assume that this is called with an appropriately sized buffer and can never fail. */
117	assert_se(in_addr_prefix_to_string(family, u, prefixlen, buf, buf_len) == 0);	414,547✔
118	return buf;	414,547✔
119	}
120	static inline const char* _in4_addr_prefix_to_string(const struct in_addr a, unsigned prefixlen, char buf, size_t buf_len) {	84✔
121	return _in_addr_prefix_to_string(AF_INET, (const union in_addr_union *) a, prefixlen, buf, buf_len);	84✔
122	}
123	static inline const char* _in6_addr_prefix_to_string(const struct in6_addr a, unsigned prefixlen, char buf, size_t buf_len) {	76✔
124	return _in_addr_prefix_to_string(AF_INET6, (const union in_addr_union *) a, prefixlen, buf, buf_len);	68✔
125	}
126
127	#define PREFIX_SUFFIX_MAX (1 + DECIMAL_STR_MAX(unsigned))
128	#define IN_ADDR_PREFIX_TO_STRING(family, addr, prefixlen) \
129	_in_addr_prefix_to_string(family, addr, prefixlen, (char[IN_ADDR_MAX + PREFIX_SUFFIX_MAX]){}, IN_ADDR_MAX + PREFIX_SUFFIX_MAX)
130	#define IN4_ADDR_PREFIX_TO_STRING(addr, prefixlen) \
131	_in4_addr_prefix_to_string(addr, prefixlen, (char[INET_ADDRSTRLEN + PREFIX_SUFFIX_MAX]){}, INET_ADDRSTRLEN + PREFIX_SUFFIX_MAX)
132	#define IN6_ADDR_PREFIX_TO_STRING(addr, prefixlen) \
133	_in6_addr_prefix_to_string(addr, prefixlen, (char[INET6_ADDRSTRLEN + PREFIX_SUFFIX_MAX]){}, INET6_ADDRSTRLEN + PREFIX_SUFFIX_MAX)
134
135	int in_addr_port_ifindex_name_to_string(int family, const union in_addr_union u, uint16_t port, int ifindex, const char server_name, char **ret);
136	static inline int in_addr_ifindex_to_string(int family, const union in_addr_union u, int ifindex, char *ret) {	1,216✔
137	return in_addr_port_ifindex_name_to_string(family, u, 0, ifindex, NULL, ret);	1,216✔
138	}
UNCOV 139	static inline int in_addr_port_to_string(int family, const union in_addr_union u, uint16_t port, char *ret) {	×
UNCOV 140	return in_addr_port_ifindex_name_to_string(family, u, port, 0, NULL, ret);	×
141	}
142	int in_addr_from_string(int family, const char s, union in_addr_union ret);
143	int in_addr_from_string_auto(const char s, int ret_family, union in_addr_union *ret);
144
145	unsigned char in4_addr_netmask_to_prefixlen(const struct in_addr *addr);
146	struct in_addr* in4_addr_prefixlen_to_netmask(struct in_addr *addr, unsigned char prefixlen);
147	struct in6_addr* in6_addr_prefixlen_to_netmask(struct in6_addr *addr, unsigned char prefixlen);
148	int in_addr_prefixlen_to_netmask(int family, union in_addr_union *addr, unsigned char prefixlen);
149	int in4_addr_default_prefixlen(const struct in_addr addr, unsigned char prefixlen);
150	int in4_addr_default_subnet_mask(const struct in_addr addr, struct in_addr mask);
151	int in4_addr_mask(struct in_addr *addr, unsigned char prefixlen);
152	int in6_addr_mask(struct in6_addr *addr, unsigned char prefixlen);
153	int in_addr_mask(int family, union in_addr_union *addr, unsigned char prefixlen);
154	int in4_addr_prefix_covers_full(const struct in_addr prefix, unsigned char prefixlen, const struct in_addr address, unsigned char address_prefixlen);
155	int in6_addr_prefix_covers_full(const struct in6_addr prefix, unsigned char prefixlen, const struct in6_addr address, unsigned char address_prefixlen);
156	int in_addr_prefix_covers_full(int family, const union in_addr_union prefix, unsigned char prefixlen, const union in_addr_union address, unsigned char address_prefixlen);
157	static inline int in4_addr_prefix_covers(const struct in_addr prefix, unsigned char prefixlen, const struct in_addr address) {
158	return in4_addr_prefix_covers_full(prefix, prefixlen, address, 32);
159	}
160	static inline int in6_addr_prefix_covers(const struct in6_addr prefix, unsigned char prefixlen, const struct in6_addr address) {	71✔
161	return in6_addr_prefix_covers_full(prefix, prefixlen, address, 128);	71✔
162	}
163	static inline int in_addr_prefix_covers(int family, const union in_addr_union prefix, unsigned char prefixlen, const union in_addr_union address) {	5,911✔
164	return in_addr_prefix_covers_full(family, prefix, prefixlen, address, family == AF_INET ? 32 : family == AF_INET6 ? 128 : 0);	5,911✔
165	}
166	int in_addr_parse_prefixlen(int family, const char p, unsigned char ret);
167	int in_addr_prefix_from_string(const char p, int family, union in_addr_union ret_prefix, unsigned char *ret_prefixlen);
168
169	typedef enum InAddrPrefixLenMode {
170	PREFIXLEN_FULL, /* Default to prefixlen of address size, 32 for IPv4 or 128 for IPv6, if not specified. */
171	PREFIXLEN_REFUSE, /* Fail with -ENOANO if prefixlen is not specified. */
172	} InAddrPrefixLenMode;
173
174	int in_addr_prefix_from_string_auto_full(const char p, InAddrPrefixLenMode mode, int ret_family, union in_addr_union ret_prefix, unsigned char ret_prefixlen);
175	static inline int in_addr_prefix_from_string_auto(const char p, int ret_family, union in_addr_union ret_prefix, unsigned char ret_prefixlen) {	134,898✔
176	return in_addr_prefix_from_string_auto_full(p, PREFIXLEN_FULL, ret_family, ret_prefix, ret_prefixlen);	134,898✔
177	}
178
179	static inline size_t FAMILY_ADDRESS_SIZE(int family) {	1,456,495✔
180	switch (family) {	1,456,495✔
181	case AF_INET:
182	return 4;
183	case AF_INET6:	689,615✔
184	return 16;	689,615✔
UNCOV 185	default:	×
UNCOV 186	assert_not_reached();	×
187	}
188	}
189
190	#define FAMILY_ADDRESS_SIZE_SAFE(f) \
191	({ \
192	int _f = (f); \
193	_f == AF_INET ? sizeof(struct in_addr) : \
194	_f == AF_INET6 ? sizeof(struct in6_addr) : 0; \
195	})
196
197	/* Workaround for clang, explicitly specify the maximum-size element here.
198	* See also oss-fuzz#11344. */
199	#define IN_ADDR_NULL ((union in_addr_union) { .in6 = {} })
200
201	void in_addr_hash_func(const union in_addr_union u, int family, struct siphash state);
202	void in_addr_data_hash_func(const struct in_addr_data a, struct siphash state);
203	int in_addr_data_compare_func(const struct in_addr_data x, const struct in_addr_data y);
204	void in6_addr_hash_func(const struct in6_addr addr, struct siphash state);
205	int in6_addr_compare_func(const struct in6_addr a, const struct in6_addr b);
206
207	extern const struct hash_ops in_addr_data_hash_ops;
208	extern const struct hash_ops in_addr_data_hash_ops_free;
209	extern const struct hash_ops in6_addr_hash_ops;
210	extern const struct hash_ops in6_addr_hash_ops_free;
211
212	static inline void PTR_TO_IN4_ADDR(const void p, struct in_addr ret) {
213	assert(ret);
214	ret->s_addr = (uint32_t) ((uintptr_t) p);
215	}
216
217	static inline void* IN4_ADDR_TO_PTR(const struct in_addr *a) {
218	assert(a);
219	return (void*) ((uintptr_t) a->s_addr);
220	}
221
222	#define IPV4_ADDRESS_FMT_STR "%u.%u.%u.%u"
223	#define IPV4_ADDRESS_FMT_VAL(address) \
224	be32toh((address).s_addr) >> 24, \
225	(be32toh((address).s_addr) >> 16) & 0xFFu, \
226	(be32toh((address).s_addr) >> 8) & 0xFFu, \
227	be32toh((address).s_addr) & 0xFFu

systemd / systemd / 15263807472

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