nginx/src/core/ngx_inet.h

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