1 files changed, 74 insertions, 0 deletions
diff --git a/lib/roken/getipnodebyaddr.c b/lib/roken/getipnodebyaddr.c
new file mode 100644
index 000000000000..56ae860aff15
--- /dev/null
+++ b/lib/roken/getipnodebyaddr.c
@@ -0,0 +1,74 @@
+/*
+ * Copyright (c) 1999 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.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+RCSID("$Id: getipnodebyaddr.c 14773 2005-04-12 11:29:18Z lha $");
+#endif
+
+#include "roken.h"
+
+/*
+ * lookup `src, len' (address family `af') in DNS and return a pointer
+ * to a malloced struct hostent or NULL.
+ */
+
+struct hostent * ROKEN_LIB_FUNCTION
+getipnodebyaddr (const void *src, size_t len, int af, int *error_num)
+{
+    struct hostent *tmp;
+
+    tmp = gethostbyaddr (src, len, af);
+    if (tmp == NULL) {
+	switch (h_errno) {
+	case HOST_NOT_FOUND :
+	case TRY_AGAIN :
+	case NO_RECOVERY :
+	    *error_num = h_errno;
+	    break;
+	case NO_DATA :
+	    *error_num = NO_ADDRESS;
+	    break;
+	default :
+	    *error_num = NO_RECOVERY;
+	    break;
+	}
+	return NULL;
+    }
+    tmp = copyhostent (tmp);
+    if (tmp == NULL) {
+	*error_num = TRY_AGAIN;
+	return NULL;
+    }
+    return tmp;
+}