#
#
# patch "win32/ssh_agent_platform.cc"
#  from [030848729e09a9805430b724a20a85483a0903b9]
#    to [eed79fc741df3c122b6fb29ee858714516e1bd27]
# 
# patch "win32/ssh_agent_platform.hh"
#  from [0ae0c2d4134e6eea20659b3ff40f4c7d6eddb444]
#    to [d2a6baca38e52093193b449bcceb1023ed32bd01]
#
============================================================
--- win32/ssh_agent_platform.cc	030848729e09a9805430b724a20a85483a0903b9
+++ win32/ssh_agent_platform.cc	eed79fc741df3c122b6fb29ee858714516e1bd27
@@ -8,35 +8,111 @@
 // PURPOSE.
 
 #include "base.hh"
+
+#include "../sanity.hh"
+
 #include "ssh_agent_platform.hh"
 
 using std::string;
 
+#define AGENT_COPYDATA_ID 0x804e50ba   /* random goop */
+#define AGENT_MAX_MSGLEN  8192
+
 bool
-ssh_agent_platform::connect() 
+ssh_agent_platform::connect()
 {
-  return false;
+  char mapname[32];
+  L(FL("ssh_agent: connect"));
+  hwnd = FindWindow("Pageant", "Pageant");
+
+  if (!hwnd)
+    return false;
+
+  sprintf(mapname, "PageantRequest%08x", (unsigned)GetCurrentThreadId());
+  filemap = CreateFileMapping(INVALID_HANDLE_VALUE, NULL, PAGE_READWRITE,
+                              0, AGENT_MAX_MSGLEN, mapname);
+  if (filemap == NULL || filemap == INVALID_HANDLE_VALUE)
+    {
+      hwnd = NULL;
+      return false;
+    }
+
+  filemap_view = (char*)MapViewOfFile(filemap, FILE_MAP_WRITE, 0, 0, 0);
+
+  if (filemap_view == 0)
+    {
+      hwnd = NULL;
+      CloseHandle(filemap);
+      filemap = NULL;
+      return false;
+    }
+
+  return true;
 }
 
 bool
 ssh_agent_platform::disconnect()
 {
-  return false;
+  if (filemap != NULL)
+    {
+      CloseHandle(filemap);
+      filemap = NULL;
+      hwnd = NULL;
+      UnmapViewOfFile(filemap_view);
+      filemap_view = NULL;
+    }
+  return true;
 }
 
 
 bool
 ssh_agent_platform::connected()
 {
-  return false;
+  return hwnd != NULL && (IsWindow(hwnd) != 0);
 }
 
 void
 ssh_agent_platform::write_data(string const & data)
 {
+  unsigned char *p;
+  int id;
+  COPYDATASTRUCT cds;
+  char mapname[32];
+
+  if (!connected())
+    return;
+
+  sprintf(mapname, "PageantRequest%08x", (unsigned)GetCurrentThreadId());
+
+  L(FL("ssh_agent_platform::write_data: writing %u bytes to %s") % data.length() % mapname);
+
+  E(data.length() < AGENT_MAX_MSGLEN, F("Asked to write more than %u to pageant.") %  AGENT_MAX_MSGLEN);
+
+  memcpy(filemap_view, data.c_str(), data.length());
+  cds.dwData = AGENT_COPYDATA_ID;
+  cds.cbData = 1 + strlen(mapname);
+  cds.lpData = mapname;
+
+  id = SendMessage(hwnd, WM_COPYDATA, (WPARAM) NULL, (LPARAM) &cds);
+
+  E(id > 0, F("Error sending message to pageant (%d).") % id);
+
+  //Start our read counter again
+  read_len = 0;
 }
 
-void 
+void
 ssh_agent_platform::read_data(u32 const len, string & out)
 {
+  if (!connected())
+    return;
+
+  L(FL("ssh_agent: read_data: asked to read %u bytes") % len);
+
+  E((read_len + len) < AGENT_MAX_MSGLEN, F("Asked to read more than %u from pageant.") % AGENT_MAX_MSGLEN);
+
+  out.append(filemap_view + read_len, len);
+
+  //keep track of how much we've read
+  read_len += len;
 }
============================================================
--- win32/ssh_agent_platform.hh	0ae0c2d4134e6eea20659b3ff40f4c7d6eddb444
+++ win32/ssh_agent_platform.hh	d2a6baca38e52093193b449bcceb1023ed32bd01
@@ -8,8 +8,15 @@
 // PURPOSE.
 
 #include "../numeric_vocab.hh"
+#include "windows.h"
 
 class ssh_agent_platform {
+private:
+  HWND hwnd;
+  HANDLE filemap;
+  char *filemap_view;
+  u32 read_len;
+
 public:
   bool connect();
   bool disconnect();