Add rcsid. Remove unused #includes (what about RU# ?). Change exit(-1) and

add usage().

usr.bin/talk/ctl.c

@@ -32,7 +32,11 @@
  */
 
 #ifndef lint
+#if 0
 static char sccsid[] = "@(#)ctl.c	8.1 (Berkeley) 6/6/93";
+#endif
+static const char rcsid[] =
+	"$Id$";
 #endif /* not lint */
 
 /*
@@ -43,10 +47,7 @@ static char sccsid[] = "@(#)ctl.c	8.1 (Berkeley) 6/6/93";
 
 #include <sys/types.h>
 #include <sys/socket.h>
-#include <protocols/talkd.h>
-#include <netinet/in.h>
 #include "talk.h"
-#include "talk_ctl.h"
 
 struct	sockaddr_in daemon_addr = { sizeof(daemon_addr), AF_INET };
 struct	sockaddr_in ctl_addr = { sizeof(ctl_addr), AF_INET };

usr.bin/talk/ctl_transact.c

@@ -32,7 +32,11 @@
  */
 
 #ifndef lint
+#if 0
 static char sccsid[] = "@(#)ctl_transact.c	8.1 (Berkeley) 6/6/93";
+#endif
+static const char rcsid[] =
+	"$Id$";
 #endif /* not lint */
 
 #include <errno.h>

usr.bin/talk/display.c

@@ -32,7 +32,11 @@
  */
 
 #ifndef lint
+#if 0
 static char sccsid[] = "@(#)display.c	8.1 (Berkeley) 6/6/93";
+#endif
+static const char rcsid[] =
+	"$Id$";
 #endif /* not lint */
 
 /*

usr.bin/talk/get_addrs.c

@@ -32,12 +32,16 @@
  */
 
 #ifndef lint
+#if 0
 static char sccsid[] = "@(#)get_addrs.c	8.1 (Berkeley) 6/6/93";
+#endif
+static const char rcsid[] =
+	"$Id$";
 #endif /* not lint */
 
-#include <string.h>
+#include <err.h>
 #include <netdb.h>
-#include <stdio.h>
+#include <string.h>
 #include "talk.h"
 #include "talk_ctl.h"
 
@@ -51,22 +55,14 @@ get_addrs(my_machine_name, his_machine_name)
 	msg.pid = htonl(getpid());
 
 	hp = gethostbyname(his_machine_name);
-	if (hp == NULL) {
-		fprintf(stderr, "talk: %s: ", his_machine_name);
-		herror((char *)NULL);
-		exit(-1);
-	}
+	if (hp == NULL)
+		errx(1, "%s: %s", his_machine_name, hstrerror(h_errno));
 	bcopy(hp->h_addr, (char *) &his_machine_addr, hp->h_length);
-	if (get_iface(&his_machine_addr, &my_machine_addr) == -1) {
-		perror("failed to find my interface address");
-		exit(-1);
-	}
+	if (get_iface(&his_machine_addr, &my_machine_addr) == -1)
+		err(1, "failed to find my interface address");
 	/* 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);
-	}
+	if (sp == 0)
+		errx(1, "ntalk/udp: service is not registered");
 	daemon_port = sp->s_port;
 }

usr.bin/talk/get_iface.c

@@ -28,15 +28,14 @@
  *
  * From:
  *  Id: find_interface.c,v 1.1 1995/08/14 16:08:39 wollman Exp
- *
- * $Id$
  */
 
-#include <unistd.h>
-#include <stdlib.h>
-#include <string.h>
-#include <errno.h>
+#ifndef lint
+static const char rcsid[] =
+	"$Id$";
+#endif /* not lint */
 
+#include <errno.h>
 #include "talk.h"
 
 /*

usr.bin/talk/get_names.c

@@ -32,17 +32,28 @@
  */
 
 #ifndef lint
+#if 0
 static char sccsid[] = "@(#)get_names.c	8.1 (Berkeley) 6/6/93";
+#endif
+static const char rcsid[] =
+	"$Id$";
 #endif /* not lint */
 
-#include <unistd.h>
+#include <err.h>
+#include <pwd.h>
 #include <string.h>
 #include <sys/param.h>
-#include <pwd.h>
 #include "talk.h"
 
 extern	CTL_MSG msg;
 
+static void
+usage(void)
+{
+	fprintf(stderr, "usage: talk person [ttyname]\n");
+	exit(1);
+}
+
 /*
  * Determine the local and remote user, tty, and machines
  */
@@ -57,21 +68,15 @@ get_names(argc, argv)
 	char *my_tty, *his_tty;
 	register char *cp;
 
-	if (argc < 2 ) {
-		printf("Usage: talk user [ttyname]\n");
-		exit(-1);
-	}
-	if (!isatty(0)) {
-		printf("Standard input must be a tty, not a pipe or a file\n");
-		exit(-1);
-	}
+	if (argc < 2 )
+		usage();
+	if (!isatty(0))
+		errx(1, "standard input must be a tty, not a pipe or a file");
 	if ((my_name = getlogin()) == NULL) {
 		struct passwd *pw;
 
-		if ((pw = getpwuid(getuid())) == NULL) {
-			printf("You don't exist. Go away.\n");
-			exit(-1);
-		}
+		if ((pw = getpwuid(getuid())) == NULL)
+			errx(1, "you don't exist. Go away");
 		my_name = pw->pw_name;
 	}
 	gethostname(hostname, sizeof (hostname));

usr.bin/talk/init_disp.c

@@ -32,7 +32,11 @@
  */
 
 #ifndef lint
+#if 0
 static char sccsid[] = "@(#)init_disp.c	8.2 (Berkeley) 2/16/94";
+#endif
+static const char rcsid[] =
+	"$Id$";
 #endif /* not lint */
 
 /*
@@ -40,14 +44,10 @@ static char sccsid[] = "@(#)init_disp.c	8.2 (Berkeley) 2/16/94";
  * as well as the signal handling routines.
  */
 
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <sys/termios.h>
-#include <sys/ttydefaults.h>
-
-#include <unistd.h>
-#include <signal.h>
 #include <err.h>
+#include <signal.h>
+#include <sys/stat.h>
+#include <unistd.h>
 #include "talk.h"
 
 /*

usr.bin/talk/invite.c

@@ -32,17 +32,20 @@
  */
 
 #ifndef lint
+#if 0
 static char sccsid[] = "@(#)invite.c	8.1 (Berkeley) 6/6/93";
+#endif
+static const char rcsid[] =
+	"$Id$";
 #endif /* not lint */
 
-#include <sys/types.h>
-#include <sys/socket.h>
-#include <sys/time.h>
-#include <signal.h>
-#include <netinet/in.h>
-#include <protocols/talkd.h>
+#include <err.h>
 #include <errno.h>
 #include <setjmp.h>
+#include <signal.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <protocols/talkd.h>
 #include "talk_ctl.h"
 #include "talk.h"
 
@@ -184,11 +187,11 @@ send_delete()
 	if (sendto(ctl_sockt, &msg, sizeof (msg), 0,
 	    (struct sockaddr *)&daemon_addr,
 	    sizeof (daemon_addr)) != sizeof(msg))
-		perror("send_delete (remote)");
+		warn("send_delete (remote)");
 	msg.id_num = htonl(local_id);
 	daemon_addr.sin_addr = my_machine_addr;
 	if (sendto(ctl_sockt, &msg, sizeof (msg), 0,
 	    (struct sockaddr *)&daemon_addr,
 	    sizeof (daemon_addr)) != sizeof (msg))
-		perror("send_delete (local)");
+		warn("send_delete (local)");
 }

usr.bin/talk/io.c

@@ -32,7 +32,11 @@
  */
 
 #ifndef lint
+#if 0
 static char sccsid[] = "@(#)io.c	8.1 (Berkeley) 6/6/93";
+#endif
+static const char rcsid[] =
+	"$Id$";
 #endif /* not lint */
 
 /*
@@ -41,9 +45,6 @@ static char sccsid[] = "@(#)io.c	8.1 (Berkeley) 6/6/93";
  * ctl.c
  */
 
-#include <sys/ioctl.h>
-#include <sys/time.h>
-#include <stdio.h>
 #include <errno.h>
 #include <string.h>
 #include "talk.h"

usr.bin/talk/look_up.c

@@ -32,14 +32,17 @@
  */
 
 #ifndef lint
+#if 0
 static char sccsid[] = "@(#)look_up.c	8.1 (Berkeley) 6/6/93";
+#endif
+static const char rcsid[] =
+	"$Id$";
 #endif /* not lint */
 
+#include <errno.h>
 #include <sys/types.h>
 #include <sys/socket.h>
-#include <netinet/in.h>
 #include <protocols/talkd.h>
-#include <errno.h>
 #include "talk_ctl.h"
 #include "talk.h"
 

usr.bin/talk/msgs.c

@@ -32,7 +32,11 @@
  */
 
 #ifndef lint
+#if 0
 static char sccsid[] = "@(#)msgs.c	8.1 (Berkeley) 6/6/93";
+#endif
+static const char rcsid[] =
+	"$Id$";
 #endif /* not lint */
 
 /*
@@ -40,9 +44,7 @@ static char sccsid[] = "@(#)msgs.c	8.1 (Berkeley) 6/6/93";
  * if we are slow connecting.
  */
 
-#include <sys/time.h>
 #include <signal.h>
-#include <stdio.h>
 #include "talk.h"
 
 #define MSG_INTERVAL 4

usr.bin/talk/talk.c

@@ -32,13 +32,17 @@
  */
 
 #ifndef lint
-static char copyright[] =
+static const char copyright[] =
 "@(#) Copyright (c) 1983, 1993\n\
 	The Regents of the University of California.  All rights reserved.\n";
 #endif /* not lint */
 
 #ifndef lint
+#if 0
 static char sccsid[] = "@(#)talk.c	8.1 (Berkeley) 6/6/93";
+#endif
+static const char rcsid[] =
+	"$Id$";
 #endif /* not lint */
 
 #include "talk.h"