release/src/router/nginx/src/core/ngx_inet.h

   1
   2 /*
   3  * Copyright (C) Igor Sysoev
   4  * Copyright (C) Nginx, Inc.
   5  */
   6
   7
   8 #ifndef _NGX_INET_H_INCLUDED_
   9 #define _NGX_INET_H_INCLUDED_
  10
  11
  12 #include <ngx_config.h>
  13 #include <ngx_core.h>
  14
  15
  16 /*
  17  * TODO: autoconfigure NGX_SOCKADDRLEN and NGX_SOCKADDR_STRLEN as
  18  *       sizeof(struct sockaddr_storage)
  19  *       sizeof(struct sockaddr_un)
  20  *       sizeof(struct sockaddr_in6)
  21  *       sizeof(struct sockaddr_in)
  22  */
  23
  24 #define NGX_INET_ADDRSTRLEN   (sizeof("255.255.255.255") - 1)
  25 #define NGX_INET6_ADDRSTRLEN                                                 \
  26     (sizeof("ffff:ffff:ffff:ffff:ffff:ffff:255.255.255.255") - 1)
  27 #define NGX_UNIX_ADDRSTRLEN                                                  \
  28     (sizeof(struct sockaddr_un) - offsetof(struct sockaddr_un, sun_path))
  29
  30 #if (NGX_HAVE_UNIX_DOMAIN)
  31 #define NGX_SOCKADDR_STRLEN   (sizeof("unix:") - 1 + NGX_UNIX_ADDRSTRLEN)
  32 #else
  33 #define NGX_SOCKADDR_STRLEN   (NGX_INET6_ADDRSTRLEN + sizeof("[]:65535") - 1)
  34 #endif
  35
  36 #if (NGX_HAVE_UNIX_DOMAIN)
  37 #define NGX_SOCKADDRLEN       sizeof(struct sockaddr_un)
  38 #else
  39 #define NGX_SOCKADDRLEN       512
  40 #endif
  41
  42
  43 typedef struct {
  44     in_addr_t                 addr;
  45     in_addr_t                 mask;
  46 } ngx_in_cidr_t;
  47
  48
  49 #if (NGX_HAVE_INET6)
  50
  51 typedef struct {
  52     struct in6_addr           addr;
  53     struct in6_addr           mask;
  54 } ngx_in6_cidr_t;
  55
  56 #endif
  57
  58
  59 typedef struct {
  60     ngx_uint_t                family;
  61     union {
  62         ngx_in_cidr_t         in;
  63 #if (NGX_HAVE_INET6)
  64         ngx_in6_cidr_t        in6;
  65 #endif
  66     } u;
  67 } ngx_cidr_t;
  68
  69
  70 typedef struct {
  71     struct sockaddr          *sockaddr;
  72     socklen_t                 socklen;
  73     ngx_str_t                 name;
  74 } ngx_addr_t;
  75
  76
  77 typedef struct {
  78     ngx_str_t                 url;
  79     ngx_str_t                 host;
  80     ngx_str_t                 port_text;
  81     ngx_str_t                 uri;
  82
  83     in_port_t                 port;
  84     in_port_t                 default_port;
  85     int                       family;
  86
  87     unsigned                  listen:1;
  88     unsigned                  uri_part:1;
  89     unsigned                  no_resolve:1;
  90     unsigned                  one_addr:1;  /* compatibility */
  91
  92     unsigned                  no_port:1;
  93     unsigned                  wildcard:1;
  94
  95     socklen_t                 socklen;
  96     u_char                    sockaddr[NGX_SOCKADDRLEN];
  97
  98     ngx_addr_t               *addrs;
  99     ngx_uint_t                naddrs;
 100
 101     char                     *err;
 102 } ngx_url_t;
 103
 104
 105 in_addr_t ngx_inet_addr(u_char *text, size_t len);
 106 #if (NGX_HAVE_INET6)
 107 ngx_int_t ngx_inet6_addr(u_char *p, size_t len, u_char *addr);
 108 size_t ngx_inet6_ntop(u_char *p, u_char *text, size_t len);
 109 #endif
 110 size_t ngx_sock_ntop(struct sockaddr *sa, u_char *text, size_t len,
 111     ngx_uint_t port);
 112 size_t ngx_inet_ntop(int family, void *addr, u_char *text, size_t len);
 113 ngx_int_t ngx_ptocidr(ngx_str_t *text, ngx_cidr_t *cidr);
 114 ngx_int_t ngx_parse_addr(ngx_pool_t *pool, ngx_addr_t *addr, u_char *text,
 115     size_t len);
 116 ngx_int_t ngx_parse_url(ngx_pool_t *pool, ngx_url_t *u);
 117 ngx_int_t ngx_inet_resolve_host(ngx_pool_t *pool, ngx_url_t *u);
 118
 119
 120 #endif /* _NGX_INET_H_INCLUDED_ */