rfc:socket_getaddrinfo

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rfc:socket_getaddrinfo [2016/08/24 17:11]
bp1222
rfc:socket_getaddrinfo [2017/09/22 13:28]
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-====== PHP RFC: Implement socket_getaddrinfo() ====== 
-  * Version: 0.1 
-  * Date: 2016-08-08 
-  * Author: David Walker (dave@mudsite.com) 
-  * Status: Voting 
-  * First Published at: http://wiki.php.net/rfc/socket_getaddrinfo 
  
-===== Introduction ===== 
-This RFC targets a reported feature request in [[https://bugs.php.net/bug.php?id=72733|#72733]].  The request is that PHP expose the C level function getaddrinfo().  This is a missing nice piece to the current socket library.  When dealing with variable networks it would be beneficial to allow libc to tell us what methods of connecting/listening would be most appropriate given a set of hints. 
- 
-===== Proposal ===== 
-The implementation[[https://wiki.php.net/rfc/socket_getaddrinfo#references|[1]]] I'm proposing implements 4 new functions.  ''socket_addrinfo_lookup()'' will return an array of resources, with each resource corresponding to each returned addrinfo.  The next two implemented methods ''socket_addrinfo_bind()'', and ''socket_addrinfo_connect()'', would be used to bind, or connect, to a given resource rather than make the user go through the process of creating the socket and connect/binding themselves.  The last, ``socket_addrinfo_explain`` is to convert the resource to an array for examination. 
-<file php> 
-socket_addrinfo_lookup(string node[, mixed service, array hints]) : array 
-socket_addrinfo_connect(resource $addrinfo) : resource 
-socket_addrinfo_bind(resource $addrinfo) : resource 
-socket_addrinfo_explain(resource $addrinfo) : array 
-</file> 
- 
-IPv4 Example 
-<file php> 
-<?php 
-$addrinfo = socket_addrinfo_lookup('localhost', 2000, array('ai_family' => AF_INET, 'ai_socktype' => SOCK_STREAM)); 
-$sockaddr = reset($addrinfo); 
-if (!$sockaddr) die ("No Valid Socket Types"); 
-$sock = socket_addrinfo_bind($sockaddr); 
-// ^^ $sock is a socket resource that is bound to 127.0.0.1:2000 using TCP/IP ready for reading 
- 
-var_dump(socket_addrinfo_explain($sockaddr)); 
-/* Outputs: 
-array(5) { 
-  ["ai_flags"]=> 
-  int(0) 
-  ["ai_family"]=> 
-  int(2) 
-  ["ai_socktype"]=> 
-  int(1) 
-  ["ai_protocol"]=> 
-  int(6) 
-  ["ai_addr"]=> 
-  array(2) { 
-    ["sin_port"]=> 
-    int(2000) 
-    ["sin_addr"]=> 
-    string(9) "127.0.0.1" 
-  } 
-} 
-*/ 
-</file> 
- 
-IPv6 Example 
-<file php> 
-<?php 
-$addrinfo = socket_addrinfo_lookup('localhost', 2000, array('ai_family' => AF_INET6, 'ai_socktype' => SOCK_STREAM)); 
-$sockaddr = reset($addrinfo); 
-if (!$sockaddr) die ("No Valid Socket Types"); 
-$sock = socket_addrinfo_bind($sockaddr); 
-// ^^ $sock is a socket resource that is bound to [::1]:2000 using TCP/IP ready for reading 
- 
-var_dump(socket_addrinfo_explain($sockaddr)); 
-/* Outputs: 
-array(5) { 
-  ["ai_flags"]=> 
-  int(0) 
-  ["ai_family"]=> 
-  int(10) 
-  ["ai_socktype"]=> 
-  int(1) 
-  ["ai_protocol"]=> 
-  int(6) 
-  ["ai_addr"]=> 
-  array(2) { 
-    ["sin6_port"]=> 
-    int(2000) 
-    ["sin6_addr"]=> 
-    string(3) "::1" 
-  } 
-} 
-*/ 
-</file> 
- 
-===== Backward Incompatible Changes ===== 
-New functionality; no BC issues. 
- 
-===== Proposed PHP Version(s) ===== 
-Next PHP 7.x (currently 7.2) 
- 
-===== RFC Impact ===== 
-==== To SAPIs ==== 
-None 
- 
-==== To Existing Extensions ==== 
-Socket acquired new functionality 
- 
-==== To Opcache ==== 
-None 
- 
-==== New Constants ==== 
-Exposing the AI_* family of constants. 
- 
-===== Proposed Voting Choices ===== 
-Vote to implement the new functionality, would require a 2/3 majority. 
-<doodle title="Implement socket_getaddrinfo family" auth="bp1222" voteType="single" closed="false"> 
-   * Yes 
-   * No 
-</doodle> 
-Vote Start: 2016-08-24 15:23 UTC 
- 
-Vote End:   2016-08-31 23:59 UTC 
- 
-===== References ===== 
-  * [1] - [[https://github.com/php/php-src/pull/2078|Proposed Implementation]] 
rfc/socket_getaddrinfo.txt · Last modified: 2017/09/22 13:28 (external edit)