[PATCH 2/5] iphlpapi: Implement ConvertInterfaceAliasToLuid().

[Huw Davies]

Signed-off-by: Huw Davies <huw(a)codeweavers.com>
---
 dlls/iphlpapi/iphlpapi.spec   |  2 +-
 dlls/iphlpapi/iphlpapi_main.c | 33 +++++++++++++++++++++++++++++++++
 include/netioapi.h            |  1 +
 3 files changed, 35 insertions(+), 1 deletion(-)

diff --git a/dlls/iphlpapi/iphlpapi.spec b/dlls/iphlpapi/iphlpapi.spec
index ded265f5719..9180eb84af7 100644
--- a/dlls/iphlpapi/iphlpapi.spec
+++ b/dlls/iphlpapi/iphlpapi.spec
@@ -12,7 +12,7 @@
 @ stdcall CancelMibChangeNotify2( ptr )
 #@ stub ConvertGuidToStringA
 #@ stub ConvertGuidToStringW
-#@ stub ConvertInterfaceAliasToLuid
+@ stdcall ConvertInterfaceAliasToLuid( ptr ptr )
 @ stdcall ConvertInterfaceGuidToLuid( ptr ptr )
 @ stdcall ConvertInterfaceIndexToLuid( long ptr )
 #@ stub ConvertInterfaceLuidToAlias
diff --git a/dlls/iphlpapi/iphlpapi_main.c b/dlls/iphlpapi/iphlpapi_main.c
index 403b51391af..448c1d873af 100644
--- a/dlls/iphlpapi/iphlpapi_main.c
+++ b/dlls/iphlpapi/iphlpapi_main.c
@@ -3159,6 +3159,39 @@ ULONG WINAPI GetTcp6Table2(PMIB_TCP6TABLE2 table, PULONG size, BOOL order)
     return ERROR_NOT_SUPPORTED;
 }
 
+/******************************************************************
+ *    ConvertInterfaceAliasToLuid (IPHLPAPI.@)
+ */
+DWORD WINAPI ConvertInterfaceAliasToLuid( const WCHAR *alias, NET_LUID *luid )
+{
+    struct nsi_ndis_ifinfo_rw *data;
+    DWORD err, count, i, len;
+    NET_LUID *keys;
+
+    TRACE( "(%s %p)\n", debugstr_w(alias), luid );
+
+    if (!alias || !*alias || !luid) return ERROR_INVALID_PARAMETER;
+    luid->Value = 0;
+    len = strlenW( alias );
+
+    err = NsiAllocateAndGetTable( 1, &NPI_MS_NDIS_MODULEID, NSI_NDIS_IFINFO_TABLE, (void **)&keys, sizeof(*keys),
+                                  (void **)&data, sizeof(*data), NULL, 0, NULL, 0, &count, 0 );
+    if (err) return err;
+
+    err = ERROR_INVALID_PARAMETER;
+    for (i = 0; i < count; i++)
+    {
+        if (data[i].alias.Length == len * 2 && !memcmp( data[i].alias.String, alias, len * 2 ))
+        {
+            luid->Value = keys[i].Value;
+            err = ERROR_SUCCESS;
+            break;
+        }
+    }
+    NsiFreeTable( keys, data, NULL, NULL );
+    return err;
+}
+
 /******************************************************************
  *    ConvertInterfaceGuidToLuid (IPHLPAPI.@)
  */
diff --git a/include/netioapi.h b/include/netioapi.h
index 7238d527ad4..6d08d54a444 100644
--- a/include/netioapi.h
+++ b/include/netioapi.h
@@ -238,6 +238,7 @@ typedef VOID (WINAPI *PUNICAST_IPADDRESS_CHANGE_CALLBACK)(PVOID, PMIB_UNICASTIPA
 
 typedef VOID (WINAPI *PIPFORWARD_CHANGE_CALLBACK)(VOID*,MIB_IPFORWARD_ROW2*,MIB_NOTIFICATION_TYPE);
 
+DWORD WINAPI ConvertInterfaceAliasToLuid(const WCHAR*,NET_LUID*);
 DWORD WINAPI ConvertInterfaceGuidToLuid(const GUID*,NET_LUID*);
 DWORD WINAPI ConvertInterfaceIndexToLuid(NET_IFINDEX,NET_LUID*);
 DWORD WINAPI ConvertInterfaceLuidToGuid(const NET_LUID*,GUID*);
-- 
2.23.0