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annotate src/core/ngx_inet.h @ 6559:adf25b8d0431

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Introduced the ngx_sockaddr_t type. It's properly aligned and can hold any supported sockaddr.
author Ruslan Ermilov <ru@nginx.com>
date Mon, 23 May 2016 16:37:20 +0300
parents 6d3a60a909c8
children 19db5a6bc34e
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da8c5707af39 nginx-0.1.0-2004-09-28-12:34:51 import; set copyright and remove unused files
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2 /*
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3 * Copyright (C) Igor Sysoev
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4 * Copyright (C) Nginx, Inc.
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5 */
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8 #ifndef _NGX_INET_H_INCLUDED_
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9 #define _NGX_INET_H_INCLUDED_
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11
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12 #include <ngx_config.h>
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13 #include <ngx_core.h>
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16 #define NGX_INET_ADDRSTRLEN (sizeof("255.255.255.255") - 1)
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17 #define NGX_INET6_ADDRSTRLEN \
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18 (sizeof("ffff:ffff:ffff:ffff:ffff:ffff:255.255.255.255") - 1)
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19 #define NGX_UNIX_ADDRSTRLEN \
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20 (sizeof(struct sockaddr_un) - offsetof(struct sockaddr_un, sun_path))
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21
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22 #if (NGX_HAVE_UNIX_DOMAIN)
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23 #define NGX_SOCKADDR_STRLEN (sizeof("unix:") - 1 + NGX_UNIX_ADDRSTRLEN)
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24 #elif (NGX_HAVE_INET6)
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25 #define NGX_SOCKADDR_STRLEN (NGX_INET6_ADDRSTRLEN + sizeof("[]:65535") - 1)
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26 #else
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27 #define NGX_SOCKADDR_STRLEN (NGX_INET_ADDRSTRLEN + sizeof(":65535") - 1)
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28 #endif
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29
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30 /* compatibility */
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31 #define NGX_SOCKADDRLEN sizeof(ngx_sockaddr_t)
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32
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33
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34 typedef union {
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35 struct sockaddr sockaddr;
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36 struct sockaddr_in sockaddr_in;
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37 #if (NGX_HAVE_INET6)
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38 struct sockaddr_in6 sockaddr_in6;
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39 #endif
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40 #if (NGX_HAVE_UNIX_DOMAIN)
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41 struct sockaddr_un sockaddr_un;
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42 #endif
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43 } ngx_sockaddr_t;
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45
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46 typedef struct {
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47 in_addr_t addr;
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48 in_addr_t mask;
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49 } ngx_in_cidr_t;
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50
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51
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52 #if (NGX_HAVE_INET6)
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53
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54 typedef struct {
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55 struct in6_addr addr;
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56 struct in6_addr mask;
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57 } ngx_in6_cidr_t;
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58
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59 #endif
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60
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61
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62 typedef struct {
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63 ngx_uint_t family;
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64 union {
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65 ngx_in_cidr_t in;
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66 #if (NGX_HAVE_INET6)
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67 ngx_in6_cidr_t in6;
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68 #endif
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69 } u;
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70 } ngx_cidr_t;
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71
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72
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73 typedef struct {
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74 struct sockaddr *sockaddr;
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75 socklen_t socklen;
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76 ngx_str_t name;
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77 } ngx_addr_t;
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78
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80 typedef struct {
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81 ngx_str_t url;
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82 ngx_str_t host;
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83 ngx_str_t port_text;
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84 ngx_str_t uri;
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85
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86 in_port_t port;
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87 in_port_t default_port;
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88 int family;
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89
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90 unsigned listen:1;
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91 unsigned uri_part:1;
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92 unsigned no_resolve:1;
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93
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94 unsigned no_port:1;
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95 unsigned wildcard:1;
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96
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97 socklen_t socklen;
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98 ngx_sockaddr_t sockaddr;
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99
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100 ngx_addr_t *addrs;
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101 ngx_uint_t naddrs;
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102
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103 char *err;
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104 } ngx_url_t;
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105
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106
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107 in_addr_t ngx_inet_addr(u_char *text, size_t len);
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108 #if (NGX_HAVE_INET6)
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109 ngx_int_t ngx_inet6_addr(u_char *p, size_t len, u_char *addr);
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110 size_t ngx_inet6_ntop(u_char *p, u_char *text, size_t len);
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111 #endif
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112 size_t ngx_sock_ntop(struct sockaddr *sa, socklen_t socklen, u_char *text,
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113 size_t len, ngx_uint_t port);
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114 size_t ngx_inet_ntop(int family, void *addr, u_char *text, size_t len);
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115 ngx_int_t ngx_ptocidr(ngx_str_t *text, ngx_cidr_t *cidr);
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116 ngx_int_t ngx_parse_addr(ngx_pool_t *pool, ngx_addr_t *addr, u_char *text,
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117 size_t len);
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118 ngx_int_t ngx_parse_url(ngx_pool_t *pool, ngx_url_t *u);
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119 ngx_int_t ngx_inet_resolve_host(ngx_pool_t *pool, ngx_url_t *u);
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120 ngx_int_t ngx_cmp_sockaddr(struct sockaddr *sa1, socklen_t slen1,
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121 struct sockaddr *sa2, socklen_t slen2, ngx_uint_t cmp_port);
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122
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123
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124 #endif /* _NGX_INET_H_INCLUDED_ */