From 9926dacd14c39276299712ced4a83fb043f27162 Mon Sep 17 00:00:00 2001
From: Ryan Dahl <ry@tinyclouds.org>
Date: Fri, 23 Apr 2010 17:29:36 -0700
Subject: [PATCH] Remove getaddrinfo from net2.cc

---
 src/node_net2.cc | 160 -------------------------------------------------------
 1 file changed, 160 deletions(-)

diff --git a/src/node_net2.cc b/src/node_net2.cc
index 4d0eacd..2958e03 100644
--- a/src/node_net2.cc
+++ b/src/node_net2.cc
@@ -14,8 +14,6 @@
 #include <fcntl.h>
 #include <arpa/inet.h> /* inet_pton */
 
-#include <netdb.h>
-
 #include <netinet/in.h>
 #include <netinet/tcp.h>
 
@@ -759,163 +757,6 @@ static Handle<Value> SetKeepAlive(const Arguments& args) {
   return Undefined();
 }
 
-//
-// G E T A D D R I N F O
-//
-
-
-struct resolve_request {
-  Persistent<Function> cb;
-  struct addrinfo *address_list;
-  int ai_family; // AF_INET or AF_INET6
-  char hostname[1];
-};
-
-#ifndef EAI_NODATA // EAI_NODATA is deprecated, FreeBSD already thrown it away in favor of EAI_NONAME
-#define EAI_NODATA EAI_NONAME
-#endif
-
-static int AfterResolve(eio_req *req) {
-  ev_unref(EV_DEFAULT_UC);
-
-  struct resolve_request * rreq = (struct resolve_request *)(req->data);
-
-  HandleScope scope;
-  Local<Value> argv[2];
-
-  if (req->result != 0) {
-    argv[1] = Array::New();
-    if (req->result == EAI_NODATA) {
-      argv[0] = Local<Value>::New(Null());
-    } else {
-      argv[0] = ErrnoException(req->result,
-                               "getaddrinfo",
-                               gai_strerror(req->result));
-    }
-  } else {
-    struct addrinfo *address;
-    int n = 0;
-
-    for (address = rreq->address_list; address; address = address->ai_next) { n++; }
-
-    Local<Array> results = Array::New(n);
-
-    char ip[INET6_ADDRSTRLEN];
-    const char *addr;
-
-    n = 0;
-    address = rreq->address_list;
-    while (address) {
-      assert(address->ai_socktype == SOCK_STREAM);
-      assert(address->ai_family == AF_INET || address->ai_family == AF_INET6);
-      addr = ( address->ai_family == AF_INET
-             ? (char *) &((struct sockaddr_in *) address->ai_addr)->sin_addr
-             : (char *) &((struct sockaddr_in6 *) address->ai_addr)->sin6_addr
-             );
-      const char *c = inet_ntop(address->ai_family, addr, ip, INET6_ADDRSTRLEN);
-      Local<String> s = String::New(c);
-      results->Set(Integer::New(n), s);
-
-      n++;
-      address = address->ai_next;
-    }
-
-    argv[0] = Local<Value>::New(Null());
-    argv[1] = results;
-  }
-
-  TryCatch try_catch;
-
-  rreq->cb->Call(Context::GetCurrent()->Global(), 2, argv);
-
-  if (try_catch.HasCaught()) {
-    FatalException(try_catch);
-  }
-
-  if (rreq->address_list) freeaddrinfo(rreq->address_list);
-  rreq->cb.Dispose(); // Dispose of the persistent handle
-  free(rreq);
-
-  return 0;
-}
-
-
-static int Resolve(eio_req *req) {
-  // Note: this function is executed in the thread pool! CAREFUL
-  struct resolve_request * rreq = (struct resolve_request *) req->data;
-
-  struct addrinfo hints;
-  memset(&hints, 0, sizeof(struct addrinfo));
-  hints.ai_family = rreq->ai_family;
-  hints.ai_socktype = SOCK_STREAM;
-
-  req->result = getaddrinfo((char*)rreq->hostname,
-                            NULL,
-                            &hints,
-                            &(rreq->address_list));
-  return 0;
-}
-
-
-static Handle<Value> GetAddrInfo(const Arguments& args) {
-  HandleScope scope;
-
-  String::Utf8Value hostname(args[0]->ToString());
-
-  int type = args[1]->Int32Value();
-  int fam = AF_INET;
-  switch (type) {
-    case 4:
-      fam = AF_INET;
-      break;
-    case 6:
-      fam = AF_INET6;
-      break;
-    default:
-      return ThrowException(Exception::TypeError(
-            String::New("Second argument must be an integer 4 or 6")));
-  }
-
-  if (!args[2]->IsFunction()) {
-    return ThrowException(Exception::TypeError(
-          String::New("Thrid argument must be a callback")));
-  }
-
-  Local<Function> cb = Local<Function>::Cast(args[2]);
-
-  struct resolve_request *rreq = (struct resolve_request *)
-    calloc(1, sizeof(struct resolve_request) + hostname.length());
-
-  if (!rreq) {
-    V8::LowMemoryNotification();
-    return ThrowException(Exception::Error(
-          String::New("Could not allocate enough memory")));
-  }
-
-  strcpy(rreq->hostname, *hostname);
-  rreq->cb = Persistent<Function>::New(cb);
-  rreq->ai_family = fam;
-
-  // For the moment I will do DNS lookups in the eio thread pool. This is
-  // sub-optimal and cannot handle massive numbers of requests.
-  //
-  // (One particularly annoying problem is that the pthread stack size needs
-  // to be increased dramatically to handle getaddrinfo() see X_STACKSIZE in
-  // wscript ).
-  //
-  // In the future I will move to a system using c-ares:
-  // http://lists.schmorp.de/pipermail/libev/2009q1/000632.html
-  eio_custom(Resolve, EIO_PRI_DEFAULT, AfterResolve, rreq);
-
-  // There will not be any active watchers from this object on the event
-  // loop while getaddrinfo() runs. If the only thing happening in the
-  // script was this hostname resolution, then the event loop would drop
-  // out. Thus we need to add ev_ref() until AfterResolve().
-  ev_ref(EV_DEFAULT_UC);
-
-  return Undefined();
-}
-
 
 static Handle<Value> IsIP(const Arguments& args) {
   HandleScope scope;
@@ -982,7 +823,6 @@ void InitNet2(Handle<Object> target) {
   NODE_SET_METHOD(target, "setKeepAlive", SetKeepAlive);
   NODE_SET_METHOD(target, "getsockname", GetSockName);
   NODE_SET_METHOD(target, "getpeername", GetPeerName);
-  NODE_SET_METHOD(target, "getaddrinfo", GetAddrInfo);
   NODE_SET_METHOD(target, "isIP", IsIP);
   NODE_SET_METHOD(target, "errnoException", CreateErrnoException);
 
-- 
2.7.4