summaryrefslogtreecommitdiffstats
path: root/crypto/kerberosIV/lib/roken/inaddr2str.c
diff options
context:
space:
mode:
Diffstat (limited to 'crypto/kerberosIV/lib/roken/inaddr2str.c')
-rw-r--r--crypto/kerberosIV/lib/roken/inaddr2str.c88
1 files changed, 88 insertions, 0 deletions
diff --git a/crypto/kerberosIV/lib/roken/inaddr2str.c b/crypto/kerberosIV/lib/roken/inaddr2str.c
new file mode 100644
index 0000000..af158aa
--- /dev/null
+++ b/crypto/kerberosIV/lib/roken/inaddr2str.c
@@ -0,0 +1,88 @@
+/*
+ * Copyright (c) 1995, 1996, 1997 Kungliga Tekniska Högskolan
+ * (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. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the Kungliga Tekniska
+ * Högskolan and its contributors.
+ *
+ * 4. 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: inaddr2str.c,v 1.6 1997/04/01 08:19:02 joda Exp $");
+#endif
+
+#include <stdlib.h>
+#include <string.h>
+#ifdef HAVE_SYS_TYPES_H
+#include <sys/types.h>
+#endif
+#ifdef HAVE_SYS_SOCKET_H
+#include <sys/socket.h>
+#endif
+#ifdef HAVE_NETINET_IN_H
+#include <netinet/in.h>
+#endif
+#ifdef HAVE_ARPA_INET_H
+#include <arpa/inet.h>
+#endif
+#ifdef HAVE_NETDB_H
+#include <netdb.h>
+#endif
+#include "roken.h"
+
+/*
+ * Get a verified name for `addr'.
+ * If unable to find it in the DNS, return x.y.z.a
+ */
+
+void
+inaddr2str(struct in_addr addr, char *s, size_t len)
+{
+ struct hostent *h;
+ char *p;
+
+ h = gethostbyaddr ((const char *)&addr, sizeof(addr), AF_INET);
+ if (h) {
+ h = gethostbyname (h->h_name);
+ if(h)
+ while ((p = *(h->h_addr_list)++))
+ if (memcmp (p, &addr, sizeof(addr)) == 0) {
+ strncpy (s, h->h_name, len);
+ s[len - 1] = '\0';
+ return;
+ }
+ }
+ strncpy (s, inet_ntoa (addr), len);
+ s[len - 1] = '\0';
+ return;
+}
OpenPOWER on IntegriCloud