1 //===-- SocketAddress.h -----------------------------------------*- C++ -*-===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 10 #ifndef liblldb_SocketAddress_h_ 11 #define liblldb_SocketAddress_h_ 12 13 // C Includes 14 #include <stdint.h> 15 #include <sys/socket.h> 16 #include <netdb.h> 17 #include <netinet/in.h> 18 19 #if defined(__FreeBSD__) 20 #include <sys/types.h> 21 #endif 22 23 // C++ Includes 24 // Other libraries and framework includes 25 // Project includes 26 27 namespace lldb_private { 28 29 class SocketAddress 30 { 31 public: 32 //------------------------------------------------------------------ 33 // Constructors and Destructors 34 //------------------------------------------------------------------ 35 SocketAddress (); 36 SocketAddress (const struct sockaddr &s); 37 SocketAddress (const struct sockaddr_in &s); 38 SocketAddress (const struct sockaddr_in6 &s); 39 SocketAddress (const struct sockaddr_storage &s); 40 SocketAddress (const SocketAddress& rhs); 41 ~SocketAddress (); 42 43 //------------------------------------------------------------------ 44 // Operators 45 //------------------------------------------------------------------ 46 const SocketAddress& 47 operator=(const SocketAddress& rhs); 48 49 const SocketAddress& 50 operator=(const struct addrinfo *addr_info); 51 52 const SocketAddress& 53 operator=(const struct sockaddr &s); 54 55 const SocketAddress& 56 operator=(const struct sockaddr_in &s); 57 58 const SocketAddress& 59 operator=(const struct sockaddr_in6 &s); 60 61 const SocketAddress& 62 operator=(const struct sockaddr_storage &s); 63 64 //------------------------------------------------------------------ 65 // Clear the contents of this socket address 66 //------------------------------------------------------------------ 67 void 68 Clear (); 69 70 //------------------------------------------------------------------ 71 // Get the length for the current socket address family 72 //------------------------------------------------------------------ 73 socklen_t 74 GetLength () const; 75 76 //------------------------------------------------------------------ 77 // Get the mex length for the the largest socket address supported. 78 //------------------------------------------------------------------ 79 static socklen_t 80 GetMaxLength (); 81 82 //------------------------------------------------------------------ 83 // Get the socket address family 84 //------------------------------------------------------------------ 85 sa_family_t 86 GetFamily () const; 87 88 //------------------------------------------------------------------ 89 // Set the socket address family 90 //------------------------------------------------------------------ 91 void 92 SetFamily (sa_family_t family); 93 94 //------------------------------------------------------------------ 95 // Get the port if the socket address for the family has a port 96 //------------------------------------------------------------------ 97 in_port_t 98 GetPort () const; 99 100 //------------------------------------------------------------------ 101 // Set the port if the socket address for the family has a port. 102 // The family must be set correctly prior to calling this function. 103 //------------------------------------------------------------------ 104 bool 105 SetPort (in_port_t port); 106 107 //------------------------------------------------------------------ 108 // Set the socket address according to the first match from a call 109 // to getaddrinfo() (or equivalent functions for systems that don't 110 // have getaddrinfo(). If "addr_info_ptr" is not NULL, it will get 111 // filled in with the match that was used to populate this socket 112 // address. 113 //------------------------------------------------------------------ 114 bool 115 SetAddress (const struct addrinfo *hints_ptr, // Optional hints where the family, protocol and other things can be specified. 116 const char *host, // Hostname ("foo.bar.com" or "foo" or IP address string ("123.234.12.1" or "2001:0db8:85a3:0000:0000:8a2e:0370:7334") 117 const char *service, // Protocol name ("tcp", "http", etc) or a raw port number string ("81") 118 struct addrinfo *addr_info_ptr); // If non-NULL, this will get filled in with the match 119 120 //------------------------------------------------------------------ 121 // Quick way to set the SocketAddress to localhost given the family. 122 // Returns true if successful, false if "family" doesn't support 123 // localhost or if "family" is not supported by this class. 124 //------------------------------------------------------------------ 125 bool 126 SetToLocalhost (sa_family_t family, 127 in_port_t port); 128 129 //------------------------------------------------------------------ 130 // Returns true if there is a valid socket address in this object. 131 //------------------------------------------------------------------ 132 bool 133 IsValid () const; 134 135 //------------------------------------------------------------------ 136 // Direct access to all of the sockaddr structures 137 //------------------------------------------------------------------ 138 struct sockaddr & 139 sockaddr () 140 { 141 return m_socket_addr.sa; 142 } 143 144 const struct sockaddr & 145 sockaddr () const 146 { 147 return m_socket_addr.sa; 148 } 149 150 struct sockaddr_in & 151 sockaddr_in () 152 { 153 return m_socket_addr.sa_ipv4; 154 } 155 156 const struct sockaddr_in & 157 sockaddr_in () const 158 { 159 return m_socket_addr.sa_ipv4; 160 } 161 162 struct sockaddr_in6 & 163 sockaddr_in6 () 164 { 165 return m_socket_addr.sa_ipv6; 166 } 167 168 const struct sockaddr_in6 & 169 sockaddr_in6 () const 170 { 171 return m_socket_addr.sa_ipv6; 172 } 173 174 struct sockaddr_storage & 175 sockaddr_storage () 176 { 177 return m_socket_addr.sa_storage; 178 } 179 180 181 const struct sockaddr_storage & 182 sockaddr_storage () const 183 { 184 return m_socket_addr.sa_storage; 185 } 186 187 188 //------------------------------------------------------------------ 189 // Conversion operators to allow getting the contents of this class 190 // as a pointer to the appropriate structure. This allows an instance 191 // of this class to be used in calls that take one of the sockaddr 192 // structure variants without having to manally use the correct 193 // accessor function. 194 //------------------------------------------------------------------ 195 196 operator struct sockaddr * () 197 { 198 return &m_socket_addr.sa; 199 } 200 201 operator const struct sockaddr * () const 202 { 203 return &m_socket_addr.sa; 204 } 205 206 operator struct sockaddr_in * () 207 { 208 return &m_socket_addr.sa_ipv4; 209 } 210 211 operator const struct sockaddr_in * () const 212 { 213 return &m_socket_addr.sa_ipv4; 214 } 215 216 operator struct sockaddr_in6 * () 217 { 218 return &m_socket_addr.sa_ipv6; 219 } 220 221 operator const struct sockaddr_in6 * () const 222 { 223 return &m_socket_addr.sa_ipv6; 224 } 225 226 operator const struct sockaddr_storage * () const 227 { 228 return &m_socket_addr.sa_storage; 229 } 230 231 operator struct sockaddr_storage * () 232 { 233 return &m_socket_addr.sa_storage; 234 } 235 236 237 protected: 238 typedef union sockaddr_tag 239 { 240 struct sockaddr sa; 241 struct sockaddr_in sa_ipv4; 242 struct sockaddr_in6 sa_ipv6; 243 struct sockaddr_storage sa_storage; 244 } sockaddr_t; 245 246 //------------------------------------------------------------------ 247 // Classes that inherit from SocketAddress can see and modify these 248 //------------------------------------------------------------------ 249 sockaddr_t m_socket_addr; 250 }; 251 252 253 } // namespace lldb_private 254 255 256 #endif // liblldb_SocketAddress_h_ 257
