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/*
* Copyright (C) Igor Sysoev
* Copyright (C) NGINX, Inc.
*/
#ifndef _NXT_SOCKADDR_H_INCLUDED_
#define _NXT_SOCKADDR_H_INCLUDED_
/*
* The nxt_sockaddr_t should be allocated using nxt_sockaddr_alloc()
* with actual "struct sockaddr_..." size:
* nxt_sockaddr_alloc(pool, sizeof(struct sockaddr_in))
*/
/*
* A textual sockaddr representation is stored after struct sockaddr union
* and allocated as a whole.
*/
struct nxt_sockaddr_s {
/* Socket type: SOCKS_STREAM, SOCK_DGRAM, etc. */
uint8_t type;
/* Size of struct sockaddr. */
uint8_t socklen;
/*
* Textual sockaddr representation, e.g.: "127.0.0.1:8000",
* "[::1]:8000", and "unix:/path/to/socket".
*/
uint8_t start;
uint8_t length;
/*
* Textual address representation, e.g: "127.0.0.1", "::1",
* and "unix:/path/to/socket".
*/
uint8_t address_start;
uint8_t address_length;
/*
* Textual port representation, e.g. "8000".
* Port length is (start + length) - port_start.
*/
uint8_t port_start;
/* A cache hist used to place sockaddr into appropriate free list. */
uint8_t cache_hint;
union {
struct sockaddr sockaddr;
struct sockaddr_in sockaddr_in;
#if (NXT_INET6)
struct sockaddr_in6 sockaddr_in6;
#endif
#if (NXT_HAVE_UNIX_DOMAIN)
struct sockaddr_un sockaddr_un;
#endif
} u;
};
nxt_sockaddr_t *nxt_sockaddr_cache_alloc(nxt_event_engine_t *engine,
nxt_listen_socket_t *ls);
void nxt_sockaddr_cache_free(nxt_event_engine_t *engine, nxt_conn_t *c);
NXT_EXPORT nxt_sockaddr_t *nxt_sockaddr_alloc(nxt_mp_t *mp, socklen_t socklen,
size_t address_length)
NXT_MALLOC_LIKE;
NXT_EXPORT nxt_sockaddr_t *nxt_sockaddr_create(nxt_mp_t *mp,
struct sockaddr *sockaddr, socklen_t socklen, size_t address_length)
NXT_MALLOC_LIKE;
NXT_EXPORT nxt_sockaddr_t *nxt_sockaddr_copy(nxt_mp_t *mp, nxt_sockaddr_t *src)
NXT_MALLOC_LIKE;
NXT_EXPORT nxt_sockaddr_t *nxt_getsockname(nxt_task_t *task, nxt_mp_t *mp,
nxt_socket_t s)
NXT_MALLOC_LIKE;
NXT_EXPORT void nxt_sockaddr_text(nxt_sockaddr_t *sa);
NXT_EXPORT uint32_t nxt_sockaddr_port_number(nxt_sockaddr_t *sa);
NXT_EXPORT nxt_bool_t nxt_sockaddr_cmp(nxt_sockaddr_t *sa1,
nxt_sockaddr_t *sa2);
NXT_EXPORT nxt_sockaddr_t *nxt_sockaddr_parse(nxt_mp_t *mp, nxt_str_t *addr);
NXT_EXPORT nxt_sockaddr_t *nxt_sockaddr_parse_optport(nxt_mp_t *mp,
nxt_str_t *addr);
NXT_EXPORT in_addr_t nxt_inet_addr(u_char *buf, size_t len);
#if (NXT_INET6)
NXT_EXPORT nxt_int_t nxt_inet6_addr(struct in6_addr *in6_addr, u_char *buf,
size_t len);
#endif
NXT_EXPORT nxt_bool_t nxt_inet6_probe(nxt_str_t *addr);
#define NXT_INET_ADDR_STR_LEN nxt_length("255.255.255.255:65535")
#define NXT_INET6_ADDR_STR_LEN \
nxt_length("[ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff]:65535")
#define nxt_sockaddr_size(sa) \
(offsetof(nxt_sockaddr_t, u) + sa->socklen + sa->length)
#define nxt_sockaddr_start(sa) nxt_pointer_to(sa, (sa)->start)
#define nxt_sockaddr_address(sa) nxt_pointer_to(sa, (sa)->address_start)
#define nxt_sockaddr_port(sa) nxt_pointer_to(sa, (sa)->port_start)
#define nxt_sockaddr_port_length(sa) \
(((sa)->start + (sa)->length) - (sa)->port_start)
#endif /* _NXT_SOCKADDR_H_INCLUDED_ */
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