/*
* 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))
*/
struct nxt_sockaddr_s {
/*
* A sockaddr textual representation is optional and may be in two forms:
* with port or without port. If a nxt_sockaddr_t is intended to listen(),
* bind() or connect() then the textual representation must be present and
* must include the port. nxt_event_conn_accept() creates a textual
* representation without the port.
*/
u_char *text;
/*
* text_len, socket type and socklen are stored
* together on 64-bit platforms without sockaddr.sa_len.
*/
uint16_t text_len;
uint16_t type;
#if !(NXT_SOCKADDR_SA_LEN)
socklen_t _socklen;
#endif
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;
};
typedef struct {
nxt_job_resolve_t resolve;
nxt_str_t addr;
uint8_t wildcard; /* 1 bit */
uint8_t no_port; /* 1 bit */
} nxt_job_sockaddr_parse_t;
NXT_EXPORT nxt_sockaddr_t *nxt_sockaddr_alloc(nxt_mem_pool_t *mp, socklen_t len)
NXT_MALLOC_LIKE;
NXT_EXPORT nxt_sockaddr_t *nxt_sockaddr_create(nxt_mem_pool_t *mp,
struct sockaddr *sockaddr, socklen_t len)
NXT_MALLOC_LIKE;
NXT_EXPORT nxt_sockaddr_t *nxt_sockaddr_copy(nxt_mem_pool_t *mp,
nxt_sockaddr_t *src)
NXT_MALLOC_LIKE;
NXT_EXPORT nxt_sockaddr_t *nxt_getsockname(nxt_mem_pool_t *mp, nxt_socket_t s)
NXT_MALLOC_LIKE;
NXT_EXPORT nxt_int_t nxt_sockaddr_text(nxt_mem_pool_t *mp, nxt_sockaddr_t *sa,
nxt_bool_t port);
#if (NXT_SOCKADDR_SA_LEN)
#define \
nxt_socklen_set(sa, len) \
(sa)->u.sockaddr.sa_len = (socklen_t) (len)
#define \
nxt_socklen(sa) \
((sa)->u.sockaddr.sa_len)
#else
#define \
nxt_socklen_set(sa, len) \
(sa)->_socklen = (socklen_t) (len)
#define \
nxt_socklen(sa) \
((sa)->_socklen)
#endif
NXT_EXPORT uint32_t nxt_sockaddr_port(nxt_sockaddr_t *sa);
NXT_EXPORT nxt_bool_t nxt_sockaddr_cmp(nxt_sockaddr_t *sa1,
nxt_sockaddr_t *sa2);
NXT_EXPORT size_t nxt_sockaddr_ntop(nxt_sockaddr_t *sa, u_char *buf,
u_char *end,
nxt_bool_t port);
NXT_EXPORT void nxt_job_sockaddr_parse(nxt_job_sockaddr_parse_t *jbs);
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
#if (NXT_HAVE_UNIX_DOMAIN)
#define nxt_unix_addr_path_len(sa) \
(nxt_socklen(sa) - offsetof(struct sockaddr_un, sun_path))
#endif
#define NXT_INET_ADDR_STR_LEN (sizeof("255.255.255.255") - 1)
#define NXT_INET6_ADDR_STR_LEN \
(sizeof("ffff:ffff:ffff:ffff:ffff:ffff:255.255.255.255") - 1)
#define NXT_UNIX_ADDR_STR_LEN \
((sizeof("unix:") - 1) \
+ (sizeof(struct sockaddr_un) - offsetof(struct sockaddr_un, sun_path)))
#if (NXT_HAVE_UNIX_DOMAIN)
#define NXT_SOCKADDR_STR_LEN NXT_UNIX_ADDR_STR_LEN
#elif (NXT_INET6)
#define NXT_SOCKADDR_STR_LEN NXT_INET6_ADDR_STR_LEN
#else
#define NXT_SOCKADDR_STR_LEN NXT_INET_ADDR_STR_LEN
#endif
#if (NXT_INET6)
#define NXT_SOCKPORT_STR_LEN (sizeof("[]:65535") - 1)
#else
#define NXT_SOCKPORT_STR_LEN (sizeof(":65535") - 1)
#endif
nxt_inline size_t
nxt_sockaddr_text_len(nxt_sockaddr_t *sa)
{
switch (sa->u.sockaddr.sa_family) {
#if (NXT_INET6)
case AF_INET6:
return NXT_INET6_ADDR_STR_LEN;
#endif
#if (NXT_HAVE_UNIX_DOMAIN)
case AF_UNIX:
return NXT_UNIX_ADDR_STR_LEN;
#endif
default:
return NXT_INET_ADDR_STR_LEN;
}
}
#endif /* _NXT_SOCKADDR_H_INCLUDED_ */
