posix: upgrade libevent from 1.4.7 to 1.4.13

third_party/libevent/evdns.h

 /*
  * Copyright (c) 2006 Niels Provos <provos@citi.umich.edu>
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
@@ skipping 328 matching lines @@
 /**
   Lookup a PTR record for a given IP address.
 
   @param in an IPv4 address
   @param flags either 0, or DNS_QUERY_NO_SEARCH to disable searching for this query.
   @param callback a callback function to invoke when the request is completed
   @param ptr an argument to pass to the callback function
   @return 0 if successful, or -1 if an error occurred
   @see evdns_resolve_reverse_ipv6()
  */
-int evdns_resolve_reverse(struct in_addr *in, int flags, evdns_callback_type callback, void *ptr);
+int evdns_resolve_reverse(const struct in_addr *in, int flags, evdns_callback_type callback, void *ptr);
 
 
 /**
   Lookup a PTR record for a given IPv6 address.
 
   @param in an IPv6 address
   @param flags either 0, or DNS_QUERY_NO_SEARCH to disable searching for this query.
   @param callback a callback function to invoke when the request is completed
   @param ptr an argument to pass to the callback function
   @return 0 if successful, or -1 if an error occurred
   @see evdns_resolve_reverse_ipv6()
  */
-int evdns_resolve_reverse_ipv6(struct in6_addr *in, int flags, evdns_callback_type callback, void *ptr);
+int evdns_resolve_reverse_ipv6(const struct in6_addr *in, int flags, evdns_callback_type callback, void *ptr);
 
 
 /**
   Set the value of a configuration option.
 
   The currently available configuration options are:
 
     ndots, timeout, max-timeouts, max-inflight, and attempts
 
   @param option the name of the configuration option to be modified
@@ skipping 31 matching lines @@
 /**
   Obtain nameserver information using the Windows API.
 
   Attempt to configure a set of nameservers based on platform settings on
   a win32 host.  Preferentially tries to use GetNetworkParams; if that fails,
   looks in the registry.
 
   @return 0 if successful, or -1 if an error occurred
   @see evdns_resolv_conf_parse()
  */
-#ifdef MS_WINDOWS
+#ifdef WIN32
 int evdns_config_windows_nameservers(void);
 #endif
 
 
 /**
   Clear the list of search domains.
  */
 void evdns_search_clear(void);
 
 
@@ skipping 94 matching lines @@
 int evdns_server_request_respond(struct evdns_server_request *req, int err);
 int evdns_server_request_drop(struct evdns_server_request *req);
 struct sockaddr;
 int evdns_server_request_get_requesting_addr(struct evdns_server_request *_req, struct sockaddr *sa, int addr_len);
 
 #ifdef __cplusplus
 }
 #endif
 
 #endif  /* !EVENTDNS_H */