From 9182099c105321c24a12b53183f92cc58f4e0580 Mon Sep 17 00:00:00 2001
From: Corinna Vinschen <corinna@vinschen.de>
Date: Wed, 7 Feb 2001 22:50:50 +0000
Subject:         * autoload.cc: Add LoadDLLinitfunc for iphlpapi.dll.        
 Add LoadDLLfuncEx statements for GetIfTable@12 and GetIpAddrTable@12.        
 * fhandler_socket.cc (fhandler_socket::ioctl): Move variable        
 definitions to the beginning of the function to allow better debugging.      
   Add handling for SIOCGIFHWADDR, SIOCGIFMETRIC and SIOCGIFMTU.         *
 net.cc: Include iphlpapi.h.         (get_2k_ifconf): Rewritten. Uses IP
 Helper API now.         (get_nt_ifconf): Add handling for SIOCGIFHWADDR,
 SIOCGIFMETRIC         and SIOCGIFMTU.         (get_95_ifconf): Ditto. Renamed
 from `get_9x_ifconf'.         (get_ifconf): Name loopback `lo' instead of
 `lo0' as in Linux.         Add handling for SIOCGIFHWADDR, SIOCGIFMETRIC and
 SIOCGIFMTU.         Call `get_95_ifconf' only on Windows 95, `get_nt_ifconf'
 only         on Windows NT < Service Pack 3, `get_2k_ifconf otherwise.       
  * include/asm/socket.h: Add defines for SIOCGIFHWADDR, SIOCGIFMETRIC        
 and SIOCGIFMTU.         * include/cygwin/if.h: Add `ifr_hwaddr', `ifr_metric'
 and `ifr_mtu'.         (struct ifreq): Add `ifru_hwaddr'.

---
 winsup/cygwin/autoload.cc | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)

(limited to 'winsup/cygwin/autoload.cc')

diff --git a/winsup/cygwin/autoload.cc b/winsup/cygwin/autoload.cc
index f7b0a62ef..00ee37b2c 100644
--- a/winsup/cygwin/autoload.cc
+++ b/winsup/cygwin/autoload.cc
@@ -175,6 +175,28 @@ LoadDLLinitfunc (ws2_32)
   return 0;
 }
 
+LoadDLLinitfunc (iphlpapi)
+{
+  HANDLE h;
+  static NO_COPY LONG here = -1L;
+
+  while (InterlockedIncrement (&here))
+    {
+      InterlockedDecrement (&here);
+      Sleep (0);
+    }
+
+  if (iphlpapi_handle)
+    /* nothing to do */;
+  else if ((h = LoadLibrary ("iphlpapi.dll")) != NULL)
+    iphlpapi_handle = h;
+  else if (!iphlpapi_handle)
+    api_fatal ("could not load iphlpapi.dll, %E");
+
+  InterlockedDecrement (&here);
+  return 0;
+}
+
 static void __stdcall dummy_autoload (void) __attribute__ ((unused));
 static void __stdcall
 dummy_autoload (void)
@@ -313,5 +335,9 @@ LoadDLLfunc (socket, 12, wsock32)
 LoadDLLinit (ws2_32)
 LoadDLLfuncEx (WSADuplicateSocketA, 12, ws2_32, 1)
 LoadDLLfuncEx (WSASocketA, 24, ws2_32, 1)
+
+LoadDLLinit (iphlpapi)
+LoadDLLfuncEx (GetIfTable, 12, iphlpapi, 1)
+LoadDLLfuncEx (GetIpAddrTable, 12, iphlpapi, 1)
 }
 }
-- 
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