BSD 4.4 Lite Usr.bin Sources

1 files changed, 83 insertions, 0 deletions

diff --git a/usr.bin/talk/get_addrs.c b/usr.bin/talk/get_addrs.c
new file mode 100644
index 000000000000..b9db4a6572cd
--- /dev/null
+++ b/usr.bin/talk/get_addrs.c
@@ -0,0 +1,83 @@
+/*
+ * Copyright (c) 1983, 1993
+ *	The Regents of the University of California.  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 University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University 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 REGENTS 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 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.
+ */
+
+#ifndef lint
+static char sccsid[] = "@(#)get_addrs.c	8.1 (Berkeley) 6/6/93";
+#endif /* not lint */
+
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <protocols/talkd.h>
+#include <netdb.h>
+#include <stdio.h>
+#include "talk_ctl.h"
+
+get_addrs(my_machine_name, his_machine_name)
+	char *my_machine_name, *his_machine_name;
+{
+	struct hostent *hp;
+	struct servent *sp;
+
+	msg.pid = htonl(getpid());
+	/* look up the address of the local host */
+	hp = gethostbyname(my_machine_name);
+	if (hp == NULL) {
+		fprintf(stderr, "talk: %s: ", my_machine_name);
+		herror((char *)NULL);
+		exit(-1);
+	}
+	bcopy(hp->h_addr, (char *)&my_machine_addr, hp->h_length);
+	/*
+	 * If the callee is on-machine, just copy the
+	 * network address, otherwise do a lookup...
+	 */
+	if (strcmp(his_machine_name, my_machine_name)) {
+		hp = gethostbyname(his_machine_name);
+		if (hp == NULL) {
+			fprintf(stderr, "talk: %s: ", his_machine_name);
+			herror((char *)NULL);
+			exit(-1);
+		}
+		bcopy(hp->h_addr, (char *) &his_machine_addr, hp->h_length);
+	} else
+		his_machine_addr = my_machine_addr;
+	/* find the server's port */
+	sp = getservbyname("ntalk", "udp");
+	if (sp == 0) {
+		fprintf(stderr, "talk: %s/%s: service is not registered.\n",
+		     "ntalk", "udp");
+		exit(-1);
+	}
+	daemon_port = sp->s_port;
+}