1 files changed, 134 insertions, 0 deletions
diff --git a/lib/libc/net/getnetbynis.c b/lib/libc/net/getnetbynis.c
new file mode 100644
index 0000000..21f17b9
--- /dev/null
+++ b/lib/libc/net/getnetbynis.c
@@ -0,0 +1,134 @@
+/*-
+ * Copyright (c) 1994, Garrett Wollman
+ *
+ * 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE 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 REGENTS 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.
+ */
+
+#if defined(LIBC_SCCS) && !defined(lint)
+static char sccsid[] = "@(#)$Id: getnetbynis.c,v 1.2 1994/09/26 02:50:43 wollman Exp $";
+static char rcsid[] = "$Id: getnetbynis.c,v 1.2 1994/09/26 02:50:43 wollman Exp $";
+#endif /* LIBC_SCCS and not lint */
+
+#include <sys/param.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+#include <netdb.h>
+#include <stdio.h>
+#include <ctype.h>
+#include <errno.h>
+#include <string.h>
+
+#define	MAXALIASES	35
+#define	MAXADDRS	35
+
+#ifdef YP
+static char *host_aliases[MAXALIASES];
+#endif /* YP */
+
+static struct netent *
+_getnetbynis(name, map)
+	char *name, *map;
+{
+#ifdef YP
+	register char *cp, **q;
+	static char *result;
+	int resultlen;
+	static struct netent h;
+	static char *domain = (char *)NULL;
+
+	if (domain == (char *)NULL)
+		if (yp_get_default_domain (&domain))
+			return (NULL);
+
+	if (result) {
+		free(result);
+		result = 0;
+	}
+
+	if (yp_match(domain, map, name, strlen(name), &result, &resultlen))
+		return (NULL);
+
+	if ((cp = index(result, '\n')))
+		*cp = '\0';
+
+	cp = strpbrk(result, " \t");
+	*cp++ = '\0';
+	h.n_name = result;
+
+	while (*cp == ' ' || *cp == '\t')
+		cp++;
+
+	h.n_net = inet_network(cp);
+	h.n_addrtype = AF_INET;
+
+	q = h.n_aliases = host_aliases;
+	cp = strpbrk(cp, " \t");
+	if (cp != NULL)
+		*cp++ = '\0';
+	while (cp && *cp) {
+		if (*cp == ' ' || *cp == '\t') {
+			cp++;
+			continue;
+		}
+		if (q < &host_aliases[MAXALIASES - 1])
+			*q++ = cp;
+		cp = strpbrk(cp, " \t");
+		if (cp != NULL)
+			*cp++ = '\0';
+	}
+	*q = NULL;
+	return (&h);
+#else
+	return (NULL);
+#endif
+}
+
+struct netent *
+_getnetbynisname(name)
+	char *name;
+{
+	return _getnetbynis(name, "networks.byname");
+}
+
+struct netent *
+_getnetbynisaddr(addr, type)
+	long addr;
+	int type;
+{
+	struct in_addr in;
+	char *str, *cp;
+	struct netent *np;
+
+	if (type != AF_INET)
+		return (NULL);
+
+	in.s_addr = addr;
+	str = inet_ntoa(in);
+	cp = str + strlen(str) - 2;
+	while(!strcmp(cp, ".0")) {
+		*cp = '\0';
+		cp = str + strlen(str) - 2;
+	}
+
+	return _getnetbynis(str, "networks.byaddr");
+}