168 lines
4.7 KiB
C
168 lines
4.7 KiB
C
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/*
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* Copyright (C) Igor Sysoev
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* Copyright (C) NGINX, Inc.
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*/
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#ifndef _NXT_SOCKADDR_H_INCLUDED_
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#define _NXT_SOCKADDR_H_INCLUDED_
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/*
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* The nxt_sockaddr_t should be allocated using nxt_sockaddr_alloc()
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* with actual "struct sockaddr_..." size:
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* nxt_sockaddr_alloc(pool, sizeof(struct sockaddr_in))
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*/
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struct nxt_sockaddr_s {
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/*
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* A sockaddr textual representation is optional and may be in two forms:
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* with port or without port. If a nxt_sockaddr_t is intended to listen(),
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* bind() or connect() then the textual representation must be present and
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* must include the port. nxt_event_conn_accept() creates a textual
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* representation without the port.
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*/
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u_char *text;
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/*
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* text_len, socket type and socklen are stored
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* together on 64-bit platforms without sockaddr.sa_len.
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*/
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uint16_t text_len;
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uint16_t type;
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#if !(NXT_SOCKADDR_SA_LEN)
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socklen_t _socklen;
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#endif
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union {
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struct sockaddr sockaddr;
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struct sockaddr_in sockaddr_in;
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#if (NXT_INET6)
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struct sockaddr_in6 sockaddr_in6;
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#endif
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#if (NXT_HAVE_UNIX_DOMAIN)
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struct sockaddr_un sockaddr_un;
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#endif
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} u;
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};
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typedef struct {
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nxt_job_resolve_t resolve;
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nxt_str_t addr;
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uint8_t wildcard; /* 1 bit */
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uint8_t no_port; /* 1 bit */
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} nxt_job_sockaddr_parse_t;
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NXT_EXPORT nxt_sockaddr_t *nxt_sockaddr_alloc(nxt_mem_pool_t *mp, socklen_t len)
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NXT_MALLOC_LIKE;
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NXT_EXPORT nxt_sockaddr_t *nxt_sockaddr_create(nxt_mem_pool_t *mp,
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struct sockaddr *sockaddr, socklen_t len)
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NXT_MALLOC_LIKE;
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NXT_EXPORT nxt_sockaddr_t *nxt_sockaddr_copy(nxt_mem_pool_t *mp,
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nxt_sockaddr_t *src)
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NXT_MALLOC_LIKE;
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NXT_EXPORT nxt_sockaddr_t *nxt_getsockname(nxt_mem_pool_t *mp, nxt_socket_t s)
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NXT_MALLOC_LIKE;
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NXT_EXPORT nxt_int_t nxt_sockaddr_text(nxt_mem_pool_t *mp, nxt_sockaddr_t *sa,
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nxt_bool_t port);
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#if (NXT_SOCKADDR_SA_LEN)
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#define \
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nxt_socklen_set(sa, len) \
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(sa)->u.sockaddr.sa_len = (socklen_t) (len)
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#define \
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nxt_socklen(sa) \
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((sa)->u.sockaddr.sa_len)
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#else
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#define \
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nxt_socklen_set(sa, len) \
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(sa)->_socklen = (socklen_t) (len)
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#define \
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nxt_socklen(sa) \
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((sa)->_socklen)
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#endif
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NXT_EXPORT uint32_t nxt_sockaddr_port(nxt_sockaddr_t *sa);
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NXT_EXPORT nxt_bool_t nxt_sockaddr_cmp(nxt_sockaddr_t *sa1,
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nxt_sockaddr_t *sa2);
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NXT_EXPORT size_t nxt_sockaddr_ntop(nxt_sockaddr_t *sa, u_char *buf,
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u_char *end,
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nxt_bool_t port);
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NXT_EXPORT void nxt_job_sockaddr_parse(nxt_job_sockaddr_parse_t *jbs);
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NXT_EXPORT in_addr_t nxt_inet_addr(u_char *buf, size_t len);
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#if (NXT_INET6)
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NXT_EXPORT nxt_int_t nxt_inet6_addr(struct in6_addr *in6_addr, u_char *buf,
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size_t len);
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#endif
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#if (NXT_HAVE_UNIX_DOMAIN)
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#define nxt_unix_addr_path_len(sa) \
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(nxt_socklen(sa) - offsetof(struct sockaddr_un, sun_path))
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#endif
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#define NXT_INET_ADDR_STR_LEN (sizeof("255.255.255.255") - 1)
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#define NXT_INET6_ADDR_STR_LEN \
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(sizeof("ffff:ffff:ffff:ffff:ffff:ffff:255.255.255.255") - 1)
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#define NXT_UNIX_ADDR_STR_LEN \
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((sizeof("unix:") - 1) \
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+ (sizeof(struct sockaddr_un) - offsetof(struct sockaddr_un, sun_path)))
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#if (NXT_HAVE_UNIX_DOMAIN)
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#define NXT_SOCKADDR_STR_LEN NXT_UNIX_ADDR_STR_LEN
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#elif (NXT_INET6)
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#define NXT_SOCKADDR_STR_LEN NXT_INET6_ADDR_STR_LEN
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#else
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#define NXT_SOCKADDR_STR_LEN NXT_INET_ADDR_STR_LEN
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#endif
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#if (NXT_INET6)
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#define NXT_SOCKPORT_STR_LEN (sizeof("[]:65535") - 1)
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#else
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#define NXT_SOCKPORT_STR_LEN (sizeof(":65535") - 1)
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#endif
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nxt_inline size_t
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nxt_sockaddr_text_len(nxt_sockaddr_t *sa)
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{
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switch (sa->u.sockaddr.sa_family) {
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#if (NXT_INET6)
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case AF_INET6:
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return NXT_INET6_ADDR_STR_LEN;
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#endif
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#if (NXT_HAVE_UNIX_DOMAIN)
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case AF_UNIX:
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return NXT_UNIX_ADDR_STR_LEN;
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#endif
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default:
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return NXT_INET_ADDR_STR_LEN;
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}
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}
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#endif /* _NXT_SOCKADDR_H_INCLUDED_ */
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