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ngx_inet.h
/*
 * Copyright (C) Igor Sysoev
 */


#ifndef _NGX_INET_H_INCLUDED_
#define _NGX_INET_H_INCLUDED_


#include <ngx_config.h>
#include <ngx_core.h>


/*
 * TODO: autoconfigure NGX_SOCKADDRLEN and NGX_SOCKADDR_STRLEN as
 *       sizeof(struct sockaddr_storage)
 *       sizeof(struct sockaddr_un)
 *       sizeof(struct sockaddr_in6)
 *       sizeof(struct sockaddr_in)
 */

#define NGX_INET_ADDRSTRLEN   (sizeof("255.255.255.255") - 1)
#define NGX_INET6_ADDRSTRLEN                                                 \
    (sizeof("ffff:ffff:ffff:ffff:ffff:ffff:255.255.255.255") - 1)
#define NGX_UNIX_ADDRSTRLEN                                                  \
    (sizeof(struct sockaddr_un) - offsetof(struct sockaddr_un, sun_path))

#if (NGX_HAVE_UNIX_DOMAIN)
#define NGX_SOCKADDR_STRLEN   (sizeof("unix:") - 1 + NGX_UNIX_ADDRSTRLEN)
#else
#define NGX_SOCKADDR_STRLEN   (NGX_INET6_ADDRSTRLEN + sizeof(":65535") - 1)
#endif

#if (NGX_HAVE_UNIX_DOMAIN)
#define NGX_SOCKADDRLEN       sizeof(struct sockaddr_un)
#else
#define NGX_SOCKADDRLEN       512
#endif


00042 typedef struct {
    in_addr_t                 addr;
    in_addr_t                 mask;
} ngx_in_cidr_t;


#if (NGX_HAVE_INET6)

typedef struct {
    struct in6_addr           addr;
    struct in6_addr           mask;
} ngx_in6_cidr_t;

#endif


00058 typedef struct {
    ngx_uint_t                family;
    union {
        ngx_in_cidr_t         in;
#if (NGX_HAVE_INET6)
        ngx_in6_cidr_t        in6;
#endif
    } u;
} ngx_cidr_t;


00069 typedef struct {
    struct sockaddr          *sockaddr;
    socklen_t                 socklen;
    ngx_str_t                 name;
} ngx_addr_t;


00076 typedef struct {
    ngx_str_t                 url;
    ngx_str_t                 host;
    ngx_str_t                 port_text;
    ngx_str_t                 uri;

    in_port_t                 port;
    in_port_t                 default_port;
    int                       family;

    unsigned                  listen:1;
    unsigned                  uri_part:1;
    unsigned                  no_resolve:1;
    unsigned                  one_addr:1;

    unsigned                  no_port:1;
    unsigned                  wildcard:1;

    socklen_t                 socklen;
    u_char                    sockaddr[NGX_SOCKADDRLEN];

    ngx_addr_t               *addrs;
    ngx_uint_t                naddrs;

    char                     *err;
} ngx_url_t;


in_addr_t ngx_inet_addr(u_char *text, size_t len);
#if (NGX_HAVE_INET6)
ngx_int_t ngx_inet6_addr(u_char *p, size_t len, u_char *addr);
size_t ngx_inet6_ntop(u_char *p, u_char *text, size_t len);
#endif
size_t ngx_sock_ntop(struct sockaddr *sa, u_char *text, size_t len,
    ngx_uint_t port);
size_t ngx_inet_ntop(int family, void *addr, u_char *text, size_t len);
ngx_int_t ngx_ptocidr(ngx_str_t *text, ngx_cidr_t *cidr);
ngx_int_t ngx_parse_addr(ngx_pool_t *pool, ngx_addr_t *addr, u_char *text,
    size_t len);
ngx_int_t ngx_parse_url(ngx_pool_t *pool, ngx_url_t *u);
ngx_int_t ngx_inet_resolve_host(ngx_pool_t *pool, ngx_url_t *u);


#endif /* _NGX_INET_H_INCLUDED_ */

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