build-sys: move agetty to term-utils

Signed-off-by: Karel Zak <kzak@redhat.com>

4 files changed, 1699 insertions, 0 deletions

diff --git a/term-utils/Makefile.am b/term-utils/Makefile.am
index 3602b8c80..a7459a0f2 100644
--- a/term-utils/Makefile.am
+++ b/term-utils/Makefile.am
@@ -6,3 +6,13 @@ sbin_PROGRAMS =
 usrsbin_exec_PROGRAMS =
 dist_man_MANS =
 
+EXTRA_DIST = README.modems-with-agetty
+
+if BUILD_AGETTY
+sbin_PROGRAMS += agetty
+dist_man_MANS += agetty.8
+agetty_SOURCES = agetty.c
+if !HAVE_LANGINFO
+agetty_SOURCES += $(top_srcdir)/lib/langinfo.c
+endif
+endif
diff --git a/term-utils/README.modems-with-agetty b/term-utils/README.modems-with-agetty
new file mode 100644
index 000000000..44a611e2a
--- /dev/null
+++ b/term-utils/README.modems-with-agetty
@@ -0,0 +1,76 @@
+25/10/95 Peter Orbaek <poe@daimi.aau.dk>
+
+Some notes for using agetty with modems
+
+Using a comms program to initialize the modem
+---------------------------------------------
+
+* Use kermit or minicom to initialize the modem to
+
+	- be entirely quiet.
+	- don't do local echo in command mode.
+	- turn on DCD (carrier detect) only when there is a connection going.
+	- enable auto-answer.
+	- keep a constant computer/modem bitrate at all times.
+	- optionally save this setup as the modem startup configuration.
+
+* Run agetty on the appropriate ttySn port with the arguments:
+	* -w to wait for a CR or LF before writing the /etc/issue message
+	* computer/modem bitrate
+	* the tty name.
+
+Example from my modem setup, an old 2400 bps SupraModem using Hayes standard
+AT commands.
+
+Initialize modem using kermit with the commands
+
+	AT E0 Q1 &D2 &C1 S0=1 &W0
+
+to
+	- turn off local echo from modem when in command mode (E0).
+	- disable all result codes from modem (Q1).
+	- make an on/off transition on the DTR line make the modem
+	  disconnect and go into command mode (&D2).
+	- make the computer/modem DCD line track the modem/modem
+	  carrier detect signal, i.e. no connection means no
+	  carrier detect signal to the computer (&C1).
+	- enable auto-answer after the first ring (S0=1).
+	- store the configuration as the start configuration (&W0).
+
+The commands on your modem to achieve the same setup may vary, especially
+the &D2 and &C1 commands may not be entirely standard.
+
+Exit kermit/minicom.
+
+Put the command 
+
+	/sbin/agetty -w 2400 ttyS1
+
+in the command field of the appropriate line in /etc/inittab to start
+agetty on /dev/ttyS1 with a 2400 bps speed between modem and computer.
+
+Initializing the modem with agetty
+----------------------------------
+
+Use the agetty -I command line option to specify a modem init string, like
+for the same setup as above, use the following agetty command in your
+/etc/inittab.
+
+	/sbin/agetty -w -I 'ATE0Q1&D2&C1S0=1\015' 2400 ttyS1
+
+The final \015 is an octal coding of the carriage return character
+ending the command string.
+
+If you're using simpleinit (part of this package) instead of the SYSV 
+compatible init (you're most likely using the SYSV one!) then you must
+remove the single quotes from the command line above.
+
+Note that the &W0 command was not used here since the modem will be 
+initialized each time agetty starts.
+
+With a V.34 (28.8 kbps) modem try starting with a command like:
+
+	/sbin/agetty -w -I 'ATE0Q1&D2&C1S0=1\015' 115200 ttyS1
+
+Note that agetty supports the higher (>9600 bps) serial speeds
+directly, there's no need to use setserial to use the higher speeds.
diff --git a/term-utils/agetty.8 b/term-utils/agetty.8
new file mode 100644
index 000000000..a7f3bd054
--- /dev/null
+++ b/term-utils/agetty.8
@@ -0,0 +1,307 @@
+.TH AGETTY 8 
+.SH NAME
+agetty \- alternative Linux getty
+
+.SH SYNOPSIS
+.BR "agetty " [\-c8ihLmnsUw]
+.RI "[-f " issue_file ]
+.RI "[-l " login_program ]
+.RI "[-I " init ]
+.RI "[-t " timeout ]
+.RI "[-H " login_host ]
+.I port
+.I baud_rate,...
+.RI [ term ]
+
+.SH DESCRIPTION
+.ad
+.fi
+\fBagetty\fP opens a tty port, prompts for a login name and invokes
+the /bin/login command. It is normally invoked by \fIinit(8)\fP.
+
+\fBagetty\fP has several \fInon-standard\fP features that are useful
+for hard-wired and for dial-in lines:
+.IP o
+Adapts the tty settings to parity bits and to erase, kill,
+end-of-line and uppercase characters when it reads a login name.
+The program can handle 7-bit characters with even, odd, none or space
+parity, and 8-bit characters with no parity. The following special
+characters are recognized: @ and Control-U (kill); #, DEL and
+back space (erase); carriage return and line feed (end of line).
+.IP o
+Optionally deduces the baud rate from the CONNECT messages produced by
+Hayes(tm)-compatible modems.
+.IP o
+Optionally does not hang up when it is given an already opened line
+(useful for call-back applications).
+.IP o
+Optionally does not display the contents of the \fI/etc/issue\fP file.
+.IP o
+Optionally displays an alternative issue file instead of \fI/etc/issue\fP.
+.IP o
+Optionally does not ask for a login name.
+.IP o
+Optionally invokes a non-standard login program instead of
+\fI/bin/login\fP.
+.IP o
+Optionally turns on hard-ware flow control
+.IP o
+Optionally forces the line to be local with no need for carrier detect.
+.PP
+This program does not use the \fI/etc/gettydefs\fP (System V) or
+\fI/etc/gettytab\fP (SunOS 4) files.
+.SH ARGUMENTS
+.na
+.nf
+.fi
+.ad
+.TP
+port
+A path name relative to the \fI/dev\fP directory. If a "-" is
+specified, \fBagetty\fP assumes that its standard input is
+already connected to a tty port and that a connection to a
+remote user has already been established.
+.sp
+Under System V, a "-" \fIport\fP argument should be preceded
+by a "--".
+.TP
+baud_rate,...
+A comma-separated list of one or more baud rates. Each time
+\fBagetty\fP receives a BREAK character it advances through
+the list, which is treated as if it were circular.
+.sp
+Baud rates should be specified in descending order, so that the
+null character (Ctrl-@) can also be used for baud rate switching.
+.TP
+term
+The value to be used for the TERM environment variable. This overrides
+whatever init(8) may have set, and is inherited by login and the shell.
+.SH OPTIONS
+.na
+.nf
+.fi
+.ad
+.TP
+\-c
+Don't reset terminal cflags (control modes). See \fItermios(3)\fP for more
+details.
+.TP
+\-8
+Assume that the tty is 8-bit clean, hence disable parity detection.
+.TP
+\-h
+Enable hardware (RTS/CTS) flow control. It is left up to the
+application to disable software (XON/XOFF) flow protocol where
+appropriate.
+.TP
+\-i
+Do not display the contents of \fI/etc/issue\fP (or other) before writing the
+login prompt. Terminals or communications hardware may become confused
+when receiving lots of text at the wrong baud rate; dial-up scripts
+may fail if the login prompt is preceded by too much text.
+.TP
+\-f \fIissue_file\fP
+Display the contents of \fIissue_file\fP instead of \fI/etc/issue\fP.
+This allows custom messages to be displayed on different terminals.
+The \-i option will override this option.
+.TP
+\-I \fIinitstring\fP
+Set an initial string to be sent to the tty or modem before sending
+anything else. This may be used to initialize a modem.  Non printable
+characters may be sent by writing their octal code preceded by a
+backslash (\\). For example to send a linefeed character (ASCII 10,
+octal 012) write \\012.
+.PP
+.TP
+\-l \fIlogin_program\fP
+Invoke the specified \fIlogin_program\fP instead of /bin/login.
+This allows the use of a non-standard login program (for example,
+one that asks for a dial-up password or that uses a different
+password file).
+.TP
+\-H \fIlogin_host\fP
+Write the specified \fIlogin_host\fP into the utmp file. (Normally,
+no login host is given, since \fBagetty\fP is used for local hardwired
+connections and consoles. However, this option can be useful for 
+identifying terminal concentrators and the like.
+.TP
+\-m
+Try to extract the baud rate the CONNECT status message
+produced by Hayes(tm)\-compatible modems. These status
+messages are of the form: "<junk><speed><junk>".
+\fBagetty\fP assumes that the modem emits its status message at
+the same speed as specified with (the first) \fIbaud_rate\fP value
+on the command line.
+.sp
+Since the \fI\-m\fP feature may fail on heavily-loaded systems,
+you still should enable BREAK processing by enumerating all
+expected baud rates on the command line.
+.TP 
+\-n 
+Do not prompt the user for a login name. This can be used in
+connection with \-l option to invoke a non-standard login process such
+as a BBS system. Note that with the \-n option, \fBagetty\fR gets no input from
+user who logs in and therefore won't be able to figure out parity,
+character size, and newline processing of the connection. It defaults to 
+space parity, 7 bit characters, and ASCII CR (13) end-of-line character.
+Beware that the program that \fBagetty\fR starts (usually /bin/login)
+is run as root.
+.TP
+\-t \fItimeout\fP
+Terminate if no user name could be read within \fItimeout\fP
+seconds. This option should probably not be used with hard-wired
+lines.
+.TP
+\-L
+Force the line to be a local line with no need for carrier detect. This can
+be useful when you have a locally attached terminal where the serial line
+does not set the carrier detect signal.
+.TP
+\-s
+Try to keep the existing baud rate. The baud rates from
+the command line are used when agetty receives a BREAK character.
+.TP
+\-U
+Turn on support for detecting an uppercase only terminal.  This setting will
+detect a login name containing only capitals as indicating an uppercase
+only terminal and turn on some upper to lower case conversions.  Note that
+this has no support for any unicode characters.
+.TP
+\-w 
+Wait for the user or the modem to send a carriage-return or a
+linefeed character before sending the \fI/etc/issue\fP (or other) file
+and the login prompt. Very useful in connection with the \-I option.
+.PP
+.SH EXAMPLES
+This section shows examples for the process field of an entry in the
+\fI/etc/inittab\fP file.  You'll have to prepend appropriate values
+for the other fields.  See \fIinittab(5)\fP for more details.
+
+For a hard-wired line or a console tty:
+.ti +5
+/sbin/agetty 9600 ttyS1
+
+For a directly connected terminal without proper carriage detect wiring:
+(try this if your terminal just sleeps instead of giving you a password:
+prompt.)
+.ti +5
+/sbin/agetty \-L 9600 ttyS1 vt100
+
+For a old style dial-in line with a 9600/2400/1200 baud modem:
+.ti +5
+/sbin/agetty \-mt60 ttyS1 9600,2400,1200
+
+For a Hayes modem with a fixed 115200 bps interface to the machine:
+(the example init string turns off modem echo and result codes, makes
+modem/computer DCD track modem/modem DCD, makes a DTR drop cause a 
+dis-connection and turn on auto-answer after 1 ring.)
+.ti +5
+/sbin/agetty \-w \-I 'ATE0Q1&D2&C1S0=1\\015' 115200 ttyS1
+
+.SH ISSUE ESCAPES
+The issue-file (\fI/etc/issue\fP or the file set with the \-f option)
+may contain certain escape codes to display the system name, date and
+time etc. All escape codes consist of a backslash (\\) immediately
+followed by one of the letters explained below.
+
+.TP
+b
+Insert the baudrate of the current line.
+.TP
+d
+Insert the current date.
+.TP
+s
+Insert the system name, the name of the operating system.
+.TP
+l
+Insert the name of the current tty line.
+.TP
+m
+Insert the architecture identifier of the machine, eg. i486
+.TP
+n
+Insert the nodename of the machine, also known as the hostname.
+.TP
+o
+Insert the NIS domainname of the machine.
+.TP
+O
+Insert the DNS domainname of the machine.
+.TP
+r
+Insert the release number of the OS, eg. 1.1.9.
+.TP
+t
+Insert the current time.
+.TP
+u
+Insert the number of current users logged in.
+.TP
+U
+Insert the string "1 user" or "<n> users" where <n> is the number of current
+users logged in.
+.TP
+v
+Insert the version of the OS, eg. the build-date etc.
+.TP
+Example: On my system, the following \fI/etc/issue\fP file:
+
+.na
+.nf
+.ti +.5
+This is \\n.\\o (\\s \\m \\r) \\t
+.TP
+displays as
+
+.ti +.5
+This is thingol.orcan.dk (Linux i386 1.1.9) 18:29:30
+
+.fi
+
+.SH FILES
+.na
+.nf
+/var/run/utmp, the system status file.
+/etc/issue, printed before the login prompt.
+/dev/console, problem reports (if syslog(3) is not used).
+/etc/inittab, \fIinit\fP(8) configuration file.
+.SH BUGS
+.ad
+.fi
+The baud-rate detection feature (the \fI-m\fP option) requires that
+\fBagetty\fP be scheduled soon enough after completion of a dial-in
+call (within 30 ms with modems that talk at 2400 baud). For robustness,
+always use the \fI\-m\fP option in combination with a multiple baud
+rate command-line argument, so that BREAK processing is enabled.
+
+The text in the \fI/etc/issue\fP file (or other) and the login prompt
+are always output with 7-bit characters and space parity.
+
+The baud-rate detection feature (the \fI-m\fP option) requires that
+the modem emits its status message \fIafter\fP raising the DCD line.
+.SH DIAGNOSTICS
+.ad
+.fi
+Depending on how the program was configured, all diagnostics are
+written to the console device or reported via the syslog(3) facility.
+Error messages are produced if the \fIport\fP argument does not
+specify a terminal device; if there is no utmp entry for the
+current process (System V only); and so on.
+.SH AUTHOR(S)
+.na
+.nf
+W.Z. Venema <wietse@wzv.win.tue.nl>
+Eindhoven University of Technology
+Department of Mathematics and Computer Science
+Den Dolech 2, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
+
+Peter Orbaek <poe@daimi.aau.dk>
+Linux port and more options. Still maintains the code.
+
+Eric Rasmussen <ear@usfirst.org>
+Added \-f option to display custom login messages on different terminals.
+
+.SH AVAILABILITY
+The agetty command is part of the util-linux package and is available from
+ftp://ftp.kernel.org/pub/linux/utils/util-linux/.
diff --git a/term-utils/agetty.c b/term-utils/agetty.c
new file mode 100644
index 000000000..57d198039
--- /dev/null
+++ b/term-utils/agetty.c
@@ -0,0 +1,1306 @@
+/* agetty.c - another getty program for Linux. By W. Z. Venema 1989
+   Ported to Linux by Peter Orbaek <poe@daimi.aau.dk>
+   This program is freely distributable. The entire man-page used to
+   be here. Now read the real man-page agetty.8 instead.
+
+   -f option added by Eric Rasmussen <ear@usfirst.org> - 12/28/95
+   
+   1999-02-22 Arkadiusz Mi¶kiewicz <misiek@pld.ORG.PL>
+   - added Native Language Support
+
+   1999-05-05 Thorsten Kranzkowski <dl8bcu@gmx.net>
+   - enable hardware flow control before displaying /etc/issue
+   
+*/
+
+#include <stdio.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <string.h>
+#include <termios.h>
+#include <signal.h>
+#include <errno.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <stdarg.h>
+#include <ctype.h>
+#include <utmp.h>
+#include <getopt.h>
+#include <time.h>
+#include <sys/file.h>
+#include <sys/socket.h>
+#include <netdb.h>
+
+#include "strutils.h"
+#include "nls.h"
+#include "pathnames.h"
+#include "c.h"
+
+#ifdef __linux__
+#include <sys/param.h>
+#define USE_SYSLOG
+#endif
+
+ /* If USE_SYSLOG is undefined all diagnostics go directly to /dev/console. */
+
+#ifdef	USE_SYSLOG
+#include <syslog.h>
+#endif
+
+ /*
+  * Some heuristics to find out what environment we are in: if it is not
+  * System V, assume it is SunOS 4.
+  */
+
+#ifdef LOGIN_PROCESS			/* defined in System V utmp.h */
+#define	SYSV_STYLE			/* select System V style getty */
+#endif
+
+ /*
+  * Things you may want to modify.
+  * 
+  * If ISSUE is not defined, agetty will never display the contents of the
+  * /etc/issue file. You will not want to spit out large "issue" files at the
+  * wrong baud rate. Relevant for System V only.
+  * 
+  * You may disagree with the default line-editing etc. characters defined
+  * below. Note, however, that DEL cannot be used for interrupt generation
+  * and for line editing at the same time.
+  */
+
+#ifdef	SYSV_STYLE
+#define	ISSUE "/etc/issue"		/* displayed before the login prompt */
+#include <sys/utsname.h>
+#endif
+
+#define LOGIN " login: "		/* login prompt */
+
+/* Some shorthands for control characters. */
+
+#define CTL(x)		(x ^ 0100)	/* Assumes ASCII dialect */
+#define	CR		CTL('M')	/* carriage return */
+#define	NL		CTL('J')	/* line feed */
+#define	BS		CTL('H')	/* back space */
+#define	DEL		CTL('?')	/* delete */
+
+/* Defaults for line-editing etc. characters; you may want to change this. */
+
+#define DEF_ERASE	DEL		/* default erase character */
+#define DEF_INTR	CTL('C')	/* default interrupt character */
+#define DEF_QUIT	CTL('\\')	/* default quit char */
+#define DEF_KILL	CTL('U')	/* default kill char */
+#define DEF_EOF		CTL('D')	/* default EOF char */
+#define DEF_EOL		0
+#define DEF_SWITCH	0		/* default switch char */
+
+#ifndef MAXHOSTNAMELEN
+# ifdef HOST_NAME_MAX
+#  define MAXHOSTNAMELEN HOST_NAME_MAX
+# else
+#  define MAXHOSTNAMELEN 64
+# endif
+#endif
+
+ /*
+  * When multiple baud rates are specified on the command line, the first one
+  * we will try is the first one specified.
+  */
+
+#define	FIRST_SPEED	0
+
+/* Storage for command-line options. */
+
+#define	MAX_SPEED	10		/* max. nr. of baud rates */
+
+struct options {
+    int     flags;			/* toggle switches, see below */
+    int     timeout;			/* time-out period */
+    char   *login;			/* login program */
+    char   *tty;			/* name of tty */
+    char   *initstring;			/* modem init string */
+    char   *issue;			/* alternative issue file */
+    int     numspeed;			/* number of baud rates to try */
+    int     speeds[MAX_SPEED];		/* baud rates to be tried */
+    int     eightbits;			/* assume 8bit-clean tty */
+};
+
+#define	F_PARSE		(1<<0)		/* process modem status messages */
+#define	F_ISSUE		(1<<1)		/* display /etc/issue */
+#define	F_RTSCTS	(1<<2)		/* enable RTS/CTS flow control */
+#define F_LOCAL		(1<<3)		/* force local */
+#define F_INITSTRING    (1<<4)		/* initstring is set */
+#define F_WAITCRLF	(1<<5)		/* wait for CR or LF */
+#define F_CUSTISSUE	(1<<6)		/* give alternative issue file */
+#define F_NOPROMPT	(1<<7)		/* don't ask for login name! */
+#define F_LCUC		(1<<8)		/* Support for *LCUC stty modes */
+#define F_KEEPSPEED	(1<<9)		/* Follow baud rate from kernel */
+#define F_KEEPCFLAGS	(1<<10)		/* Reuse c_cflags setup from kernel */
+
+/* Storage for things detected while the login name was read. */
+
+struct chardata {
+    int     erase;			/* erase character */
+    int     kill;			/* kill character */
+    int     eol;			/* end-of-line character */
+    int     parity;			/* what parity did we see */
+    int     capslock;			/* upper case without lower case */
+};
+
+/* Initial values for the above. */
+
+struct chardata init_chardata = {
+    DEF_ERASE,				/* default erase character */
+    DEF_KILL,				/* default kill character */
+    13,					/* default eol char */
+    0,					/* space parity */
+    0,					/* no capslock */
+};
+
+struct Speedtab {
+    long    speed;
+    int     code;
+};
+
+static struct Speedtab speedtab[] = {
+    { 50, B50 },
+    { 75, B75 },
+    { 110, B110 },
+    { 134, B134 },
+    { 150, B150 },
+    { 200, B200 },
+    { 300, B300 },
+    { 600, B600 },
+    { 1200, B1200 },
+    { 1800, B1800 },
+    { 2400, B2400 },
+    { 4800, B4800 },
+    { 9600, B9600 },
+#ifdef	B19200
+    { 19200, B19200 },
+#endif
+#ifdef	B38400
+    { 38400, B38400 },
+#endif
+#ifdef	EXTA
+    { 19200, EXTA },
+#endif
+#ifdef	EXTB
+    { 38400, EXTB },
+#endif
+#ifdef B57600
+    { 57600, B57600 },
+#endif
+#ifdef B115200
+    { 115200, B115200 },
+#endif
+#ifdef B230400
+    { 230400, B230400 },
+#endif
+    { 0, 0 },
+};
+
+#define P_(s) s
+int main P_((int argc, char **argv));
+void parse_args P_((int argc, char **argv, struct options *op));
+void parse_speeds P_((struct options *op, char *arg));
+void update_utmp P_((char *line));
+void open_tty P_((char *tty, struct termios *tp, int local));
+void termio_init P_((struct termios *tp, struct options *op));
+void auto_baud P_((struct termios *tp));
+void do_prompt P_((struct options *op, struct termios *tp));
+void next_speed P_((struct termios *tp, struct options *op));
+char *get_logname P_((struct options *op, struct chardata *cp, struct termios *tp));
+void termio_final P_((struct options *op, struct termios *tp, struct chardata *cp));
+int caps_lock P_((char *s));
+int bcode P_((char *s));
+void usage P_((void));
+void error P_((const char *, ...));
+#undef P_
+
+/* The following is used for understandable diagnostics. */
+
+char *progname;
+
+/* Fake hostname for ut_host specified on command line. */
+char *fakehost = NULL;
+
+/* ... */
+#ifdef DEBUGGING
+#define debug(s) fprintf(dbf,s); fflush(dbf)
+FILE *dbf;
+#else
+#define debug(s) /* nothing */
+#endif
+
+int
+main(argc, argv)
+     int     argc;
+     char  **argv;
+{
+    char   *logname = NULL;		/* login name, given to /bin/login */
+    struct chardata chardata;		/* set by get_logname() */
+    struct termios termios;		/* terminal mode bits */
+    static struct options options = {
+	F_ISSUE,			/* show /etc/issue (SYSV_STYLE) */
+	0,				/* no timeout */
+	_PATH_LOGIN,			/* default login program */
+	"tty1",				/* default tty line */
+	"",				/* modem init string */
+	ISSUE,				/* default issue file */
+	0,				/* no baud rates known yet */
+    };
+
+       setlocale(LC_ALL, "");
+       bindtextdomain(PACKAGE, LOCALEDIR);
+       textdomain(PACKAGE);
+    
+    /* The BSD-style init command passes us a useless process name. */
+
+#ifdef	SYSV_STYLE
+       {
+	       char *ptr;
+	       progname = argv[0];
+	       if ((ptr = strrchr(argv[0], '/')))
+		       progname = ++ptr;
+       }
+#else
+       progname = "agetty";
+#endif
+
+#ifdef DEBUGGING
+	dbf = fopen("/dev/ttyp0", "w");
+
+	{	int i;
+	
+		for(i = 1; i < argc; i++) {
+			debug(argv[i]);
+		}
+	}
+#endif
+
+    /* Parse command-line arguments. */
+
+    parse_args(argc, argv, &options);
+
+#ifdef __linux__
+	setsid();
+#endif
+	
+    /* Update the utmp file. */
+
+#ifdef	SYSV_STYLE
+    update_utmp(options.tty);
+#endif
+
+    debug("calling open_tty\n");
+    /* Open the tty as standard { input, output, error }. */
+    open_tty(options.tty, &termios, options.flags & F_LOCAL);
+
+    tcsetpgrp(0, getpid());
+    /* Initialize the termios settings (raw mode, eight-bit, blocking i/o). */
+    debug("calling termio_init\n");
+    termio_init(&termios, &options);
+
+    /* write the modem init string and DON'T flush the buffers */
+    if (options.flags & F_INITSTRING) {
+	debug("writing init string\n");
+	ignore_result( write(1, options.initstring, strlen(options.initstring)) );
+    }
+
+    if (!(options.flags & F_LOCAL)) {
+	/* go to blocking write mode unless -L is specified */
+	fcntl(1, F_SETFL, fcntl(1, F_GETFL, 0) & ~O_NONBLOCK);
+    }
+
+    /* Optionally detect the baud rate from the modem status message. */
+    debug("before autobaud\n");
+    if (options.flags & F_PARSE)
+	auto_baud(&termios);
+
+    /* Set the optional timer. */
+    if (options.timeout)
+	(void) alarm((unsigned) options.timeout);
+
+    /* optionally wait for CR or LF before writing /etc/issue */
+    if (options.flags & F_WAITCRLF) {
+	char ch;
+
+	debug("waiting for cr-lf\n");
+	while(read(0, &ch, 1) == 1) {
+	    ch &= 0x7f;   /* strip "parity bit" */
+#ifdef DEBUGGING
+	    fprintf(dbf, "read %c\n", ch);
+#endif
+	    if (ch == '\n' || ch == '\r') break;
+	}
+    }
+
+    chardata = init_chardata;
+    if (!(options.flags & F_NOPROMPT)) {
+	/* Read the login name. */
+	debug("reading login name\n");
+	while ((logname = get_logname(&options, &chardata, &termios)) == 0)
+	  next_speed(&termios, &options);
+    }
+
+    /* Disable timer. */
+
+    if (options.timeout)
+	(void) alarm(0);
+
+    /* Finalize the termios settings. */
+
+    termio_final(&options, &termios, &chardata);
+
+    /* Now the newline character should be properly written. */
+
+    ignore_result( write(1, "\n", 1) );
+
+    /* Let the login program take care of password validation. */
+
+    (void) execl(options.login, options.login, "--", logname, NULL);
+    error(_("%s: can't exec %s: %m"), options.tty, options.login);
+}
+
+/* parse-args - parse command-line arguments */
+
+void
+parse_args(argc, argv, op)
+     int     argc;
+     char  **argv;
+     struct options *op;
+{
+    extern char *optarg;		/* getopt */
+    extern int optind;			/* getopt */
+    int     c;
+
+    while (isascii(c = getopt(argc, argv, "8cI:LH:f:hil:mst:wUn"))) {
+	switch (c) {
+	case 'c':
+	    op->flags |= F_KEEPCFLAGS;
+	    break;
+	case '8':
+	    op->eightbits = 1;
+	    break;
+	case 'I':
+	    if (!(op->initstring = malloc(strlen(optarg)+1))) {
+		error(_("can't malloc initstring"));
+		break;
+	    }
+	    {
+		char ch, *p, *q;
+		int i;
+
+		/* copy optarg into op->initstring decoding \ddd
+		   octal codes into chars */
+		q = op->initstring;
+		p = optarg;
+		while (*p) {
+		    if (*p == '\\') {		/* know \\ means \ */
+			p++;
+			if (*p == '\\') {
+			    ch = '\\';
+			    p++;
+			} else {		/* handle \000 - \177 */
+			    ch = 0;
+			    for (i = 1; i <= 3; i++) {
+				if (*p >= '0' && *p <= '7') {
+				    ch <<= 3;
+				    ch += *p - '0';
+				    p++;
+				} else 
+				  break;
+			    }
+			}
+			*q++ = ch;
+		    } else {
+			*q++ = *p++;
+		    }
+		}
+		*q = '\0';
+	    }
+	    op->flags |= F_INITSTRING;
+	    break;
+
+	case 'L':				/* force local */
+ 	    op->flags |= F_LOCAL;
+ 	    break;
+	case 'H':                               /* fake login host */
+	    fakehost = optarg;
+	    break;
+	case 'f':				/* custom issue file */
+	    op->flags |= F_CUSTISSUE;
+	    op->issue = optarg;
+	    break;
+	case 'h':				/* enable h/w flow control */
+	    op->flags |= F_RTSCTS;
+	    break;
+	case 'i':				/* do not show /etc/issue */
+	    op->flags &= ~F_ISSUE;
+	    break;
+	case 'l':
+	    op->login = optarg;			/* non-default login program */
+	    break;
+	case 'm':				/* parse modem status message */
+	    op->flags |= F_PARSE;
+	    break;
+	case 'n':
+	    op->flags |= F_NOPROMPT;
+	    break;
+	case 's':
+	    op->flags |= F_KEEPSPEED;		/* keep kernel defined speed */
+	    break;
+	case 't':				/* time out */
+	    if ((op->timeout = atoi(optarg)) <= 0)
+		error(_("bad timeout value: %s"), optarg);
+	    break;
+	case 'w':
+	    op->flags |= F_WAITCRLF;
+	    break;
+	case 'U':
+	    op->flags |= F_LCUC;
+	    break;
+	default:
+	    usage();
+	}
+    }
+	debug("after getopt loop\n");
+    if (argc < optind + 2)			/* check parameter count */
+	usage();
+
+    /* we loosen up a bit and accept both "baudrate tty" and "tty baudrate" */
+    if('0' <= argv[optind][0] && argv[optind][0] <= '9') {
+	/* a number first, assume it's a speed (BSD style) */
+	parse_speeds(op, argv[optind++]);	/* baud rate(s) */
+	op->tty = argv[optind];			/* tty name */
+    } else {
+	op->tty = argv[optind++];		/* tty name */
+	parse_speeds(op, argv[optind]);		/* baud rate(s) */
+    }
+
+    optind++;
+    if (argc > optind && argv[optind])
+	setenv ("TERM", argv[optind], 1);
+
+#ifdef DO_DEVFS_FIDDLING
+    /*
+     * some devfs junk, following Goswin Brederlow:
+     *   turn ttyS<n> into tts/<n>
+     *   turn tty<n> into vc/<n>
+     */
+    if (op->tty && strlen(op->tty) < 90) {
+	    char dev_name[100];
+	    struct stat st;
+
+	    if (strncmp(op->tty, "ttyS", 4) == 0) {
+		    strcpy(dev_name, "/dev/");
+		    strcat(dev_name, op->tty);
+		    if (stat(dev_name, &st) < 0) {
+			    strcpy(dev_name, "/dev/tts/");
+			    strcat(dev_name, op->tty + 4);
+			    if (stat(dev_name, &st) == 0)
+				    op->tty = strdup(dev_name + 5);
+		    }
+	    } else if (strncmp(op->tty, "tty", 3) == 0) {
+		    strcpy(dev_name, "/dev/");
+		    strncat(dev_name, op->tty, 90);
+		    if (stat(dev_name, &st) < 0) {
+			    strcpy(dev_name, "/dev/vc/");
+			    strcat(dev_name, op->tty + 3);
+			    if (stat(dev_name, &st) == 0)
+				    op->tty = strdup(dev_name + 5);
+		    }
+	    }
+    }
+#endif
+
+    debug("exiting parseargs\n");
+}
+
+/* parse_speeds - parse alternate baud rates */
+
+void
+parse_speeds(op, arg)
+     struct options *op;
+     char   *arg;
+{
+    char   *cp;
+
+	debug("entered parse_speeds\n");
+    for (cp = strtok(arg, ","); cp != 0; cp = strtok((char *) 0, ",")) {
+	if ((op->speeds[op->numspeed++] = bcode(cp)) <= 0)
+	    error(_("bad speed: %s"), cp);
+	if (op->numspeed >= MAX_SPEED)
+	    error(_("too many alternate speeds"));
+    }
+    debug("exiting parsespeeds\n");
+}
+
+#ifdef	SYSV_STYLE
+
+/* update_utmp - update our utmp entry */
+void
+update_utmp(line)
+     char   *line;
+{
+    struct  utmp ut;
+    time_t  t;
+    int     mypid = getpid();
+    struct  utmp *utp;
+
+    /*
+     * The utmp file holds miscellaneous information about things started by
+     * /sbin/init and other system-related events. Our purpose is to update
+     * the utmp entry for the current process, in particular the process type
+     * and the tty line we are listening to. Return successfully only if the
+     * utmp file can be opened for update, and if we are able to find our
+     * entry in the utmp file.
+     */
+
+    utmpname(_PATH_UTMP);
+    setutent();
+
+    /* Find mypid in utmp. Earlier code here tested only
+       utp->ut_type != INIT_PROCESS, so maybe the >= here should be >.
+       The present code is taken from login.c, so if this is changed,
+       maybe login has to be changed as well. */
+    while ((utp = getutent()))
+	    if (utp->ut_pid == mypid
+		&& utp->ut_type >= INIT_PROCESS
+		&& utp->ut_type <= DEAD_PROCESS)
+		    break;
+
+    if (utp) {
+	memcpy(&ut, utp, sizeof(ut));
+    } else {
+	/* some inits don't initialize utmp... */
+	memset(&ut, 0, sizeof(ut));
+	strncpy(ut.ut_id, line + 3, sizeof(ut.ut_id));
+    }
+	
+    strncpy(ut.ut_user, "LOGIN", sizeof(ut.ut_user));
+    strncpy(ut.ut_line, line, sizeof(ut.ut_line));
+    if (fakehost)
+	strncpy(ut.ut_host, fakehost, sizeof(ut.ut_host));
+    time(&t);
+    ut.ut_time = t;
+    ut.ut_type = LOGIN_PROCESS;
+    ut.ut_pid = mypid;
+
+    pututline(&ut);
+    endutent();
+
+    {
+#ifdef HAVE_UPDWTMP
+	updwtmp(_PATH_WTMP, &ut);
+#else
+	int ut_fd;
+	int lf;
+
+	if ((lf = open(_PATH_WTMPLOCK, O_CREAT|O_WRONLY, 0660)) >= 0) {
+	    flock(lf, LOCK_EX);
+	    if ((ut_fd = open(_PATH_WTMP, O_APPEND|O_WRONLY)) >= 0) {
+		ignore_result( write(ut_fd, &ut, sizeof(ut)) );
+		close(ut_fd);
+	    }
+	    flock(lf, LOCK_UN);
+	    close(lf);
+	}
+#endif
+    }
+}
+
+#endif
+
+/* open_tty - set up tty as standard { input, output, error } */
+void
+open_tty(tty, tp, local)
+     char   *tty;
+     struct termios *tp;
+     int    local;
+{
+    /* Get rid of the present standard { output, error} if any. */
+
+    (void) close(1);
+    (void) close(2);
+    errno = 0;					/* ignore above errors */
+
+    /* Set up new standard input, unless we are given an already opened port. */
+
+    if (strcmp(tty, "-")) {
+	struct stat st;
+
+	/* Sanity checks... */
+
+	if (chdir("/dev"))
+	    error(_("/dev: chdir() failed: %m"));
+	if (stat(tty, &st) < 0)
+	    error("/dev/%s: %m", tty);
+	if ((st.st_mode & S_IFMT) != S_IFCHR)
+	    error(_("/dev/%s: not a character device"), tty);
+
+	/* Open the tty as standard input. */
+
+	(void) close(0);
+	errno = 0;				/* ignore close(2) errors */
+
+	debug("open(2)\n");
+	if (open(tty, O_RDWR|O_NONBLOCK, 0) != 0)
+	    error(_("/dev/%s: cannot open as standard input: %m"), tty);
+
+    } else {
+
+	/*
+	 * Standard input should already be connected to an open port. Make
+	 * sure it is open for read/write.
+	 */
+
+	if ((fcntl(0, F_GETFL, 0) & O_RDWR) != O_RDWR)
+	    error(_("%s: not open for read/write"), tty);
+    }
+
+    /* Set up standard output and standard error file descriptors. */
+    debug("duping\n");
+    if (dup(0) != 1 || dup(0) != 2)		/* set up stdout and stderr */
+	error(_("%s: dup problem: %m"), tty);	/* we have a problem */
+
+    /*
+     * The following ioctl will fail if stdin is not a tty, but also when
+     * there is noise on the modem control lines. In the latter case, the
+     * common course of action is (1) fix your cables (2) give the modem more
+     * time to properly reset after hanging up. SunOS users can achieve (2)
+     * by patching the SunOS kernel variable "zsadtrlow" to a larger value;
+     * 5 seconds seems to be a good value.
+     */
+
+    if (tcgetattr(0, tp) < 0)
+	error("%s: tcgetattr: %m", tty);
+
+    /*
+     * It seems to be a terminal. Set proper protections and ownership. Mode
+     * 0622 is suitable for SYSV <4 because /bin/login does not change
+     * protections. SunOS 4 login will change the protections to 0620 (write
+     * access for group tty) after the login has succeeded.
+     *
+     * Linux login(1) will change tty permissions.
+     */
+
+    /*
+     * Let us use 0600 for Linux for the period between getty and login
+     */
+    ignore_result( chown(tty, 0, 0) );		/* root, sys */
+    ignore_result( chmod(tty, 0600) );		/* 0622: crw--w--w- */
+    errno = 0;					/* ignore above errors */
+}
+
+/* termio_init - initialize termios settings */
+
+char gbuf[1024];
+char area[1024];
+
+void
+termio_init(tp, op)
+     struct termios *tp;
+     struct options *op;
+{
+    speed_t ispeed, ospeed;
+
+    if (op->flags & F_KEEPSPEED) {
+	ispeed = cfgetispeed(tp);		/* save the original setting */
+	ospeed = cfgetospeed(tp);
+    } else
+	ospeed = ispeed = op->speeds[FIRST_SPEED];
+
+    /*
+     * Initial termios settings: 8-bit characters, raw-mode, blocking i/o.
+     * Special characters are set after we have read the login name; all
+     * reads will be done in raw mode anyway. Errors will be dealt with
+     * lateron.
+     */
+    /* flush input and output queues, important for modems! */
+    (void) tcflush(0, TCIOFLUSH);
+
+    tp->c_iflag = tp->c_lflag = tp->c_oflag = 0;
+
+    if (!(op->flags & F_KEEPCFLAGS))
+	tp->c_cflag = CS8 | HUPCL | CREAD | (tp->c_cflag & CLOCAL);
+
+    /* Note that the speed is stored in the c_cflag termios field, so we have
+     * set the speed always when the cflag se reseted.
+     */
+    cfsetispeed(tp, ispeed);
+    cfsetospeed(tp, ospeed);
+
+    if (op->flags & F_LOCAL) {
+	tp->c_cflag |= CLOCAL;
+    }
+
+#ifdef HAVE_STRUCT_TERMIOS_C_LINE
+    tp->c_line = 0;
+#endif
+    tp->c_cc[VMIN] = 1;
+    tp->c_cc[VTIME] = 0;
+
+    /* Optionally enable hardware flow control */
+
+#ifdef	CRTSCTS
+    if (op->flags & F_RTSCTS)
+	tp->c_cflag |= CRTSCTS;
+#endif
+
+    (void) tcsetattr(0, TCSANOW, tp);
+
+    /* go to blocking input even in local mode */
+    fcntl(0, F_SETFL, fcntl(0, F_GETFL, 0) & ~O_NONBLOCK);
+
+    debug("term_io 2\n");
+}
+
+/* auto_baud - extract baud rate from modem status message */
+void
+auto_baud(tp)
+     struct termios *tp;
+{
+    int     speed;
+    int     vmin;
+    unsigned iflag;
+    char    buf[BUFSIZ];
+    char   *bp;
+    int     nread;
+
+    /*
+     * This works only if the modem produces its status code AFTER raising
+     * the DCD line, and if the computer is fast enough to set the proper
+     * baud rate before the message has gone by. We expect a message of the
+     * following format:
+     * 
+     * <junk><number><junk>
+     * 
+     * The number is interpreted as the baud rate of the incoming call. If the
+     * modem does not tell us the baud rate within one second, we will keep
+     * using the current baud rate. It is advisable to enable BREAK
+     * processing (comma-separated list of baud rates) if the processing of
+     * modem status messages is enabled.
+     */
+
+    /*
+     * Use 7-bit characters, don't block if input queue is empty. Errors will
+     * be dealt with lateron.
+     */
+
+    iflag = tp->c_iflag;
+    tp->c_iflag |= ISTRIP;			/* enable 8th-bit stripping */
+    vmin = tp->c_cc[VMIN];
+    tp->c_cc[VMIN] = 0;				/* don't block if queue empty */
+    tcsetattr(0, TCSANOW, tp);
+
+    /*
+     * Wait for a while, then read everything the modem has said so far and
+     * try to extract the speed of the dial-in call.
+     */
+
+    (void) sleep(1);
+    if ((nread = read(0, buf, sizeof(buf) - 1)) > 0) {
+	buf[nread] = '\0';
+	for (bp = buf; bp < buf + nread; bp++) {
+	    if (isascii(*bp) && isdigit(*bp)) {
+		if ((speed = bcode(bp))) {
+		    cfsetispeed(tp, speed);
+		    cfsetospeed(tp, speed);
+		}
+		break;
+	    }
+	}
+    }
+    /* Restore terminal settings. Errors will be dealt with lateron. */
+
+    tp->c_iflag = iflag;
+    tp->c_cc[VMIN] = vmin;
+    (void) tcsetattr(0, TCSANOW, tp);
+}
+
+/* do_prompt - show login prompt, optionally preceded by /etc/issue contents */
+void
+do_prompt(op, tp)
+     struct options *op;
+     struct termios *tp;
+{
+#ifdef	ISSUE
+    FILE    *fd;
+    int     oflag;
+    int     c;
+    struct utsname uts;
+
+    (void) uname(&uts);
+#endif
+
+    ignore_result( write(1, "\r\n", 2) );			/* start a new line */
+#ifdef	ISSUE					/* optional: show /etc/issue */
+    if ((op->flags & F_ISSUE) && (fd = fopen(op->issue, "r"))) {
+	oflag = tp->c_oflag;			/* save current setting */
+	tp->c_oflag |= (ONLCR | OPOST);		/* map NL in output to CR-NL */
+	(void) tcsetattr(0, TCSADRAIN, tp);
+
+
+	while ((c = getc(fd)) != EOF)
+	{
+	    if (c == '\\')
+	      {
+		c = getc(fd);
+		
+		switch (c)
+		  {
+		  case 's':
+		    (void) printf ("%s", uts.sysname);
+		    break;
+		    
+		  case 'n':
+		    (void) printf ("%s", uts.nodename);
+		    break;
+		    
+		  case 'r':
+		    (void) printf ("%s", uts.release);
+		    break;
+		    
+		  case 'v':
+		    (void) printf ("%s", uts.version);
+		    break;
+		    
+		  case 'm':
+		    (void) printf ("%s", uts.machine);
+		    break;
+
+		  case 'o':
+		   {
+		     char domainname[MAXHOSTNAMELEN+1];
+#ifdef HAVE_GETDOMAINNAME
+		     if (getdomainname(domainname, sizeof(domainname)))
+#endif
+			 strcpy(domainname, "unknown_domain");
+		     domainname[sizeof(domainname)-1] = '\0';
+		     printf ("%s", domainname);
+		   }
+		  break;
+
+		  case 'O':
+		   {
+			char *dom = "unknown_domain";
+			char host[MAXHOSTNAMELEN+1];
+			struct addrinfo hints, *info = NULL;
+
+			memset(&hints, 0, sizeof(hints));
+			hints.ai_flags = AI_CANONNAME;
+
+			if (gethostname(host, sizeof(host)) ||
+			    getaddrinfo(host, NULL, &hints, &info) ||
+			    info == NULL)
+				fputs(dom, stdout);
+			else {
+				char *canon;
+
+				if (info->ai_canonname &&
+				    (canon = strchr(info->ai_canonname, '.')))
+					dom = canon + 1;
+				fputs(dom, stdout);
+				freeaddrinfo(info);
+			}
+		   }
+		  break;
+
+		  case 'd':
+		  case 't':
+		    {
+		      time_t now;
+		      struct tm *tm;
+
+		      (void) time (&now);
+		      tm = localtime(&now);
+
+		      if (c == 'd')
+			(void) printf ("%s %s %d  %d",
+				nl_langinfo(ABDAY_1 + tm->tm_wday),
+				nl_langinfo(ABMON_1 + tm->tm_mon),
+				tm->tm_mday,
+				tm->tm_year < 70 ? tm->tm_year + 2000 :
+				tm->tm_year + 1900);
+		      else
+			(void) printf ("%02d:%02d:%02d",
+				tm->tm_hour, tm->tm_min, tm->tm_sec);
+		      break;
+		    }
+
+		  case 'l':
+		      (void) printf ("%s", op->tty);
+		      break;
+
+		  case 'b':
+		    {
+			int i;
+
+			for (i = 0; speedtab[i].speed; i++) {
+			    if (speedtab[i].code == cfgetispeed(tp)) {
+				printf("%ld", speedtab[i].speed);
+				break;
+			    }
+			}
+			break;
+		    }
+		  case 'u':
+		  case 'U':
+		    {
+		      int users = 0;
+		      struct utmp *ut;
+		      setutent();
+		      while ((ut = getutent()))
+		        if (ut->ut_type == USER_PROCESS)
+			  users++;
+		      endutent();
+		      printf ("%d ", users);
+		      if (c == 'U')
+		        printf ((users == 1) ? _("user") : _("users"));
+		      break;
+		    }
+		  default:
+		    (void) putchar(c);
+		  }
+	      }
+	    else
+	      (void) putchar(c);
+	}
+	fflush(stdout);
+
+	tp->c_oflag = oflag;			/* restore settings */
+	(void) tcsetattr(0, TCSADRAIN, tp);	/* wait till output is gone */
+	(void) fclose(fd);
+    }
+#endif
+    {
+	char hn[MAXHOSTNAMELEN+1];
+	if (gethostname(hn, sizeof(hn)) == 0)
+	    ignore_result( write(1, hn, strlen(hn)) );
+    }
+    ignore_result( write(1, LOGIN, sizeof(LOGIN) - 1) );	/* always show login prompt */
+}
+
+/* next_speed - select next baud rate */
+void
+next_speed(tp, op)
+     struct termios *tp;
+     struct options *op;
+{
+    static int baud_index = -1;
+
+    if (baud_index == -1)
+	/*
+	 * if the F_KEEPSPEED flags is set then the FIRST_SPEED is not
+	 * tested yet (see termio_init()).
+	 */
+	baud_index = (op->flags & F_KEEPSPEED) ? FIRST_SPEED :
+		                                 1 % op->numspeed;
+    else
+	baud_index = (baud_index + 1) % op->numspeed;
+
+    cfsetispeed(tp, op->speeds[baud_index]);
+    cfsetospeed(tp, op->speeds[baud_index]);
+    (void) tcsetattr(0, TCSANOW, tp);
+}
+
+/* get_logname - get user name, establish parity, speed, erase, kill, eol */
+
+char   *get_logname(op, cp, tp)
+     struct options *op;
+     struct chardata *cp;
+     struct termios *tp;
+{
+    static char logname[BUFSIZ];
+    char   *bp;
+    char    c;				/* input character, full eight bits */
+    char    ascval;			/* low 7 bits of input character */
+    int     bits;			/* # of "1" bits per character */
+    int     mask;			/* mask with 1 bit up */
+    static char *erase[] = {		/* backspace-space-backspace */
+	"\010\040\010",			/* space parity */
+	"\010\040\010",			/* odd parity */
+	"\210\240\210",			/* even parity */
+	"\210\240\210",			/* no parity */
+    };
+
+    /* Initialize kill, erase, parity etc. (also after switching speeds). */
+
+    *cp = init_chardata;
+
+    /* Flush pending input (esp. after parsing or switching the baud rate). */
+
+    (void) sleep(1);
+    (void) tcflush(0, TCIFLUSH);
+
+    /* Prompt for and read a login name. */
+
+    for (*logname = 0; *logname == 0; /* void */ ) {
+
+	/* Write issue file and prompt, with "parity" bit == 0. */
+
+	do_prompt(op, tp);
+
+	/* Read name, watch for break, parity, erase, kill, end-of-line. */
+
+	for (bp = logname, cp->eol = 0; cp->eol == 0; /* void */ ) {
+
+	    /* Do not report trivial EINTR/EIO errors. */
+
+	    if (read(0, &c, 1) < 1) {
+		if (errno == EINTR || errno == EIO)
+		    exit(EXIT_SUCCESS);
+		error(_("%s: read: %m"), op->tty);
+	    }
+	    /* Do BREAK handling elsewhere. */
+
+	    if ((c == 0) && op->numspeed > 1)
+		return EXIT_SUCCESS;
+	    /* Do parity bit handling. */
+
+	    if (op->eightbits) {
+		ascval = c;
+	    } else if (c != (ascval = (c & 0177))) {	/* "parity" bit on */
+		for (bits = 1, mask = 1; mask & 0177; mask <<= 1)
+		    if (mask & ascval)
+			bits++;			/* count "1" bits */
+		cp->parity |= ((bits & 1) ? 1 : 2);
+	    }
+	    /* Do erase, kill and end-of-line processing. */
+
+	    switch (ascval) {
+	    case CR:
+	    case NL:
+		*bp = 0;			/* terminate logname */
+		cp->eol = ascval;		/* set end-of-line char */
+		break;
+	    case BS:
+	    case DEL:
+	    case '#':
+		cp->erase = ascval;		/* set erase character */
+		if (bp > logname) {
+		    ignore_result( write(1, erase[cp->parity], 3) );
+		    bp--;
+		}
+		break;
+	    case CTL('U'):
+	    case '@':
+		cp->kill = ascval;		/* set kill character */
+		while (bp > logname) {
+		    ignore_result( write(1, erase[cp->parity], 3) );
+		    bp--;
+		}
+		break;
+	    case CTL('D'):
+		exit(EXIT_SUCCESS);
+	    default:
+		if (!isascii(ascval) || !isprint(ascval)) {
+		     /* ignore garbage characters */ ;
+		} else if (bp - logname >= sizeof(logname) - 1) {
+		    error(_("%s: input overrun"), op->tty);
+		} else {
+		    ignore_result( write(1, &c, 1) );	/* echo the character */
+		    *bp++ = ascval;		/* and store it */
+		}
+		break;
+	    }
+	}
+    }
+    /* Handle names with upper case and no lower case. */
+    if ((op->flags & F_LCUC) && (cp->capslock = caps_lock(logname))) {
+	for (bp = logname; *bp; bp++)
+	    if (isupper(*bp))
+		*bp = tolower(*bp);		/* map name to lower case */
+    }
+    return logname;
+}
+
+/* termio_final - set the final tty mode bits */
+void
+termio_final(op, tp, cp)
+     struct options *op;
+     struct termios *tp;
+     struct chardata *cp;
+{
+    /* General terminal-independent stuff. */
+
+    tp->c_iflag |= IXON | IXOFF;		/* 2-way flow control */
+    tp->c_lflag |= ICANON | ISIG | ECHO | ECHOE | ECHOK| ECHOKE;
+      /* no longer| ECHOCTL | ECHOPRT*/
+    tp->c_oflag |= OPOST;
+    /* tp->c_cflag = 0; */
+    tp->c_cc[VINTR] = DEF_INTR;			/* default interrupt */
+    tp->c_cc[VQUIT] = DEF_QUIT;			/* default quit */
+    tp->c_cc[VEOF] = DEF_EOF;			/* default EOF character */
+    tp->c_cc[VEOL] = DEF_EOL;
+#ifdef __linux__
+    tp->c_cc[VSWTC] = DEF_SWITCH;		/* default switch character */
+#elif defined(VSWTCH)
+    tp->c_cc[VSWTCH] = DEF_SWITCH;		/* default switch character */
+#endif
+
+    /* Account for special characters seen in input. */
+
+    if (cp->eol == CR) {
+	tp->c_iflag |= ICRNL;			/* map CR in input to NL */
+	tp->c_oflag |= ONLCR;			/* map NL in output to CR-NL */
+    }
+    tp->c_cc[VERASE] = cp->erase;		/* set erase character */
+    tp->c_cc[VKILL] = cp->kill;			/* set kill character */
+
+    /* Account for the presence or absence of parity bits in input. */
+
+    switch (cp->parity) {
+    case 0:					/* space (always 0) parity */
+	break;
+    case 1:					/* odd parity */
+	tp->c_cflag |= PARODD;
+	/* FALLTHROUGH */
+    case 2:					/* even parity */
+	tp->c_cflag |= PARENB;
+	tp->c_iflag |= INPCK | ISTRIP;
+	/* FALLTHROUGH */
+    case (1 | 2):				/* no parity bit */
+	tp->c_cflag &= ~CSIZE;
+	tp->c_cflag |= CS7;
+	break;
+    }
+    /* Account for upper case without lower case. */
+
+    if (cp->capslock) {
+#ifdef IUCLC
+	tp->c_iflag |= IUCLC;
+#endif
+#ifdef XCASE	
+	tp->c_lflag |= XCASE;
+#endif
+#ifdef OLCUC
+	tp->c_oflag |= OLCUC;
+#endif
+    }
+    /* Optionally enable hardware flow control */
+
+#ifdef	CRTSCTS
+    if (op->flags & F_RTSCTS)
+	tp->c_cflag |= CRTSCTS;
+#endif
+
+    /* Finally, make the new settings effective */
+
+    if (tcsetattr(0, TCSANOW, tp) < 0)
+	error("%s: tcsetattr: TCSANOW: %m", op->tty);
+}
+
+/* caps_lock - string contains upper case without lower case */
+int
+caps_lock(s)
+     char   *s;
+{
+    int     capslock;
+
+    for (capslock = 0; *s; s++) {
+	if (islower(*s))
+	    return EXIT_SUCCESS;
+	if (capslock == 0)
+	    capslock = isupper(*s);
+    }
+    return capslock;
+}
+
+/* bcode - convert speed string to speed code; return 0 on failure */
+int
+bcode(s)
+     char   *s;
+{
+    struct Speedtab *sp;
+    long    speed = atol(s);
+
+    for (sp = speedtab; sp->speed; sp++)
+	if (sp->speed == speed)
+	    return sp->code;
+    return 0;
+}
+
+/* usage - explain */
+
+void __attribute__((__noreturn__)) usage(void)
+{
+    fprintf(stderr, _("Usage: %s [-8hiLmsUw] [-l login_program] [-t timeout] [-I initstring] [-H login_host] baud_rate,... line [termtype]\nor\t[-hiLmw] [-l login_program] [-t timeout] [-I initstring] [-H login_host] line baud_rate,... [termtype]\n"), progname);
+    exit(EXIT_FAILURE);
+}
+
+/* error - report errors to console or syslog; only understands %s and %m */
+
+#define	str2cpy(b,s1,s2)	strcat(strcpy(b,s1),s2)
+
+void
+error(const char *fmt, ...) {
+    va_list ap;
+#ifndef	USE_SYSLOG
+    int     fd;
+#endif
+    char    buf[BUFSIZ];
+    char   *bp;
+
+    /*
+     * If the diagnostic is reported via syslog(3), the process name is
+     * automatically prepended to the message. If we write directly to
+     * /dev/console, we must prepend the process name ourselves.
+     */
+
+#ifdef USE_SYSLOG
+    buf[0] = '\0';
+    bp = buf;
+#else
+    (void) str2cpy(buf, progname, ": ");
+    bp = buf + strlen(buf);
+#endif
+
+    /*
+     * %s expansion is done by hand. On a System V Release 2 system without
+     * shared libraries and without syslog(3), linking with the the stdio
+     * library would make the program three times as big...
+     *
+     * %m expansion is done here as well. Too bad syslog(3) does not have a
+     * vsprintf() like interface.
+     */
+
+    va_start(ap, fmt);
+    while (*fmt && bp < &buf[BUFSIZ-1]) {
+	if (strncmp(fmt, "%s", 2) == 0) {
+	    xstrncpy(bp, va_arg(ap, char *), &buf[BUFSIZ-1] - bp);
+	    bp += strlen(bp);
+	    fmt += 2;
+	} else if (strncmp(fmt, "%m", 2) == 0) {
+	    xstrncpy(bp, strerror(errno), &buf[BUFSIZ-1] - bp);
+	    bp += strlen(bp);
+	    fmt += 2;
+	} else {
+	    *bp++ = *fmt++;
+	}
+    }
+    *bp = 0;
+    va_end(ap);
+
+    /*
+     * Write the diagnostic directly to /dev/console if we do not use the
+     * syslog(3) facility.
+     */
+
+#ifdef	USE_SYSLOG
+    (void) openlog(progname, LOG_PID, LOG_AUTHPRIV);
+    (void) syslog(LOG_ERR, "%s", buf);
+    closelog();
+#else
+    /* Terminate with CR-LF since the console mode is unknown. */
+    (void) strcat(bp, "\r\n");
+    if ((fd = open("/dev/console", 1)) >= 0) {
+	ignore_result( write(fd, buf, strlen(buf)) );
+	(void) close(fd);
+    }
+#endif
+    (void) sleep((unsigned) 10);		/* be kind to init(8) */
+    exit(1);
+}