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diff --git a/source4/heimdal/lib/krb5/eai_to_heim_errno.c b/source4/heimdal/lib/krb5/eai_to_heim_errno.c
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index 0000000000..c06e8fb9bb
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+++ b/source4/heimdal/lib/krb5/eai_to_heim_errno.c
@@ -0,0 +1,114 @@
+/*
+ * Copyright (c) 2000 - 2001 Kungliga Tekniska H�gskolan
+ * (Royal Institute of Technology, Stockholm, Sweden). 
+ * 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 
+ *    notice, this list of conditions and the following disclaimer in the 
+ *    documentation and/or other materials provided with the distribution. 
+ *
+ * 3. Neither the name of the Institute nor the names of its contributors 
+ *    may be used to endorse or promote products derived from this software 
+ *    without specific prior written permission. 
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND 
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE 
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 
+ * SUCH DAMAGE. 
+ */
+
+#include <krb5_locl.h>
+
+RCSID("$Id$");
+
+/**
+ * Convert the getaddrinfo() error code to a Kerberos et error code.
+ *
+ * @param eai_errno contains the error code from getaddrinfo().
+ * @param system_error should have the value of errno after the failed getaddrinfo().
+ *
+ * @return Kerberos error code representing the EAI errors.
+ *
+ * @ingroup krb5_error
+ */
+
+krb5_error_code KRB5_LIB_FUNCTION
+krb5_eai_to_heim_errno(int eai_errno, int system_error)
+{
+    switch(eai_errno) {
+    case EAI_NOERROR:
+	return 0;
+#ifdef EAI_ADDRFAMILY
+    case EAI_ADDRFAMILY:
+	return HEIM_EAI_ADDRFAMILY;
+#endif
+    case EAI_AGAIN:
+	return HEIM_EAI_AGAIN;
+    case EAI_BADFLAGS:
+	return HEIM_EAI_BADFLAGS;
+    case EAI_FAIL:
+	return HEIM_EAI_FAIL;
+    case EAI_FAMILY:
+	return HEIM_EAI_FAMILY;
+    case EAI_MEMORY:
+	return HEIM_EAI_MEMORY;
+#if defined(EAI_NODATA) && EAI_NODATA != EAI_NONAME
+    case EAI_NODATA:
+	return HEIM_EAI_NODATA;
+#endif
+    case EAI_NONAME:
+	return HEIM_EAI_NONAME;
+    case EAI_SERVICE:
+	return HEIM_EAI_SERVICE;
+    case EAI_SOCKTYPE:
+	return HEIM_EAI_SOCKTYPE;
+    case EAI_SYSTEM:
+	return system_error;
+    default:
+	return HEIM_EAI_UNKNOWN; /* XXX */
+    }
+}
+
+/**
+ * Convert the gethostname() error code (h_error) to a Kerberos et
+ * error code.
+ *
+ * @param eai_errno contains the error code from gethostname().
+ *
+ * @return Kerberos error code representing the gethostname errors.
+ *
+ * @ingroup krb5_error
+ */
+
+krb5_error_code KRB5_LIB_FUNCTION
+krb5_h_errno_to_heim_errno(int eai_errno)
+{
+    switch(eai_errno) {
+    case 0:
+	return 0;
+    case HOST_NOT_FOUND:
+	return HEIM_EAI_NONAME;
+    case TRY_AGAIN:
+	return HEIM_EAI_AGAIN;
+    case NO_RECOVERY:
+	return HEIM_EAI_FAIL;
+    case NO_DATA:
+	return HEIM_EAI_NONAME;
+    default:
+	return HEIM_EAI_UNKNOWN; /* XXX */
+    }
+}