2011-04-14 06:25:57 -05:00
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/*
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2011-04-26 14:28:59 -05:00
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* Alternate Getty (agetty) 'agetty' is a versatile, portable, easy to use
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* replacement for getty on SunOS 4.1.x or the SAC ttymon/ttyadm/sacadm/pmadm
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* suite on Solaris and other SVR4 systems. 'agetty' was written by Wietse
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* Venema, enhanced by John DiMarco, and further enhanced by Dennis Cronin.
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2011-04-14 06:25:57 -05:00
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*
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* Ported to Linux by Peter Orbaek <poe@daimi.aau.dk>
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*
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2011-04-26 14:28:59 -05:00
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* This program is freely distributable.
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2011-04-14 06:25:57 -05:00
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*/
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2011-04-26 14:28:59 -05:00
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2006-12-06 17:25:32 -06:00
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#include <stdio.h>
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#include <unistd.h>
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#include <stdlib.h>
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2006-12-06 17:25:35 -06:00
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#include <string.h>
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2008-01-03 09:40:32 -06:00
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#include <termios.h>
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2006-12-06 17:25:32 -06:00
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#include <signal.h>
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#include <errno.h>
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2011-05-09 08:52:36 -05:00
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#include <sys/ioctl.h>
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2006-12-06 17:25:32 -06:00
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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2006-12-06 17:25:43 -06:00
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#include <stdarg.h>
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2006-12-06 17:25:32 -06:00
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#include <ctype.h>
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#include <utmp.h>
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#include <getopt.h>
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2006-12-06 17:25:43 -06:00
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#include <time.h>
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2006-12-06 17:25:32 -06:00
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#include <sys/file.h>
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2007-06-28 18:50:50 -05:00
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#include <sys/socket.h>
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#include <netdb.h>
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2011-05-09 08:52:35 -05:00
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#include <langinfo.h>
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2011-05-09 08:52:36 -05:00
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#include <grp.h>
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2008-11-26 07:35:31 -06:00
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2010-11-16 07:47:35 -06:00
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#include "strutils.h"
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2011-05-09 08:52:35 -05:00
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#include "writeall.h"
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2006-12-06 17:25:39 -06:00
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#include "nls.h"
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2007-11-28 06:19:42 -06:00
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#include "pathnames.h"
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2011-01-04 14:35:15 -06:00
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#include "c.h"
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2011-04-10 05:16:08 -05:00
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#include "xalloc.h"
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2006-12-06 17:25:32 -06:00
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2006-12-06 17:25:34 -06:00
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#ifdef __linux__
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2011-04-26 14:28:59 -05:00
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# include <sys/param.h>
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# define USE_SYSLOG
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2011-05-09 08:52:35 -05:00
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# ifndef DEFAULT_VCTERM
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# define DEFAULT_VCTERM "linux"
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# endif
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# ifndef DEFAULT_STERM
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# define DEFAULT_STERM "vt102"
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# endif
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#else
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# ifndef DEFAULT_VCTERM
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# define DEFAULT_VCTERM "vt100"
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# endif
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# ifndef DEFAULT_STERM
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# define DEFAULT_STERM "vt100"
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# endif
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2006-12-06 17:25:32 -06:00
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#endif
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2011-04-26 14:28:59 -05:00
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/* If USE_SYSLOG is undefined all diagnostics go to /dev/console. */
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2006-12-06 17:25:32 -06:00
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#ifdef USE_SYSLOG
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2011-04-26 14:28:59 -05:00
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# include <syslog.h>
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2006-12-06 17:25:32 -06:00
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#endif
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2011-04-14 06:25:57 -05:00
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/*
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* Some heuristics to find out what environment we are in: if it is not
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2011-04-26 14:28:59 -05:00
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* System V, assume it is SunOS 4. The LOGIN_PROCESS is defined in System V
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* utmp.h, which will select System V style getty.
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2011-04-14 06:25:57 -05:00
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*/
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2011-04-26 14:28:59 -05:00
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#ifdef LOGIN_PROCESS
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# define SYSV_STYLE
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2006-12-06 17:25:32 -06:00
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#endif
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2011-04-14 06:25:57 -05:00
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/*
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* Things you may want to modify.
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*
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* If ISSUE is not defined, agetty will never display the contents of the
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* /etc/issue file. You will not want to spit out large "issue" files at the
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* wrong baud rate. Relevant for System V only.
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*
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* You may disagree with the default line-editing etc. characters defined
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* below. Note, however, that DEL cannot be used for interrupt generation
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* and for line editing at the same time.
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*/
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2006-12-06 17:25:32 -06:00
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2011-04-26 14:28:59 -05:00
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/* Displayed before the login prompt. */
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2006-12-06 17:25:32 -06:00
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#ifdef SYSV_STYLE
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2011-04-26 14:29:00 -05:00
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# define ISSUE _PATH_ISSUE
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2011-04-26 14:28:59 -05:00
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# include <sys/utsname.h>
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2006-12-06 17:25:32 -06:00
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#endif
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2011-04-26 14:28:59 -05:00
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/* Login prompt. */
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#define LOGIN " login: "
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2006-12-06 17:25:32 -06:00
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/* Some shorthands for control characters. */
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#define CTL(x) (x ^ 0100) /* Assumes ASCII dialect */
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#define CR CTL('M') /* carriage return */
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#define NL CTL('J') /* line feed */
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#define BS CTL('H') /* back space */
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#define DEL CTL('?') /* delete */
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2011-04-26 14:28:59 -05:00
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/* Defaults for line-editing etc. characters; you may want to change these. */
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2006-12-06 17:25:32 -06:00
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#define DEF_ERASE DEL /* default erase character */
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#define DEF_INTR CTL('C') /* default interrupt character */
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#define DEF_QUIT CTL('\\') /* default quit char */
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#define DEF_KILL CTL('U') /* default kill char */
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#define DEF_EOF CTL('D') /* default EOF char */
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#define DEF_EOL 0
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#define DEF_SWITCH 0 /* default switch char */
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2007-11-26 07:45:55 -06:00
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#ifndef MAXHOSTNAMELEN
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2011-04-26 14:28:59 -05:00
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# ifdef HOST_NAME_MAX
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# define MAXHOSTNAMELEN HOST_NAME_MAX
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# else
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# define MAXHOSTNAMELEN 64
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# endif /* HOST_NAME_MAX */
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#endif /* MAXHOSTNAMELEN */
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2006-12-06 17:25:32 -06:00
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2011-04-14 06:25:57 -05:00
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/*
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* When multiple baud rates are specified on the command line, the first one
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* we will try is the first one specified.
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*/
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2006-12-06 17:25:32 -06:00
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#define FIRST_SPEED 0
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/* Storage for command-line options. */
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2011-04-26 14:28:59 -05:00
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#define MAX_SPEED 10 /* max. nr. of baud rates */
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2006-12-06 17:25:32 -06:00
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struct options {
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2011-05-09 08:52:34 -05:00
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int flags; /* toggle switches, see below */
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int timeout; /* time-out period */
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char *login; /* login program */
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char *tty; /* name of tty */
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2011-05-09 08:52:35 -05:00
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char *vcline; /* line of virtual console */
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char *term; /* terminal type */
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2011-05-09 08:52:34 -05:00
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char *initstring; /* modem init string */
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char *issue; /* alternative issue file */
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int numspeed; /* number of baud rates to try */
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speed_t speeds[MAX_SPEED]; /* baud rates to be tried */
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2006-12-06 17:25:32 -06:00
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};
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2011-04-26 14:28:59 -05:00
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#define F_PARSE (1<<0) /* process modem status messages */
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#define F_ISSUE (1<<1) /* display /etc/issue */
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#define F_RTSCTS (1<<2) /* enable RTS/CTS flow control */
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#define F_LOCAL (1<<3) /* force local */
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#define F_INITSTRING (1<<4) /* initstring is set */
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#define F_WAITCRLF (1<<5) /* wait for CR or LF */
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#define F_CUSTISSUE (1<<6) /* give alternative issue file */
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#define F_NOPROMPT (1<<7) /* do not ask for login name! */
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#define F_LCUC (1<<8) /* support for *LCUC stty modes */
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#define F_KEEPSPEED (1<<9) /* follow baud rate from kernel */
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#define F_KEEPCFLAGS (1<<10) /* reuse c_cflags setup from kernel */
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2011-05-09 08:52:34 -05:00
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#define F_EIGHTBITS (1<<11) /* Assume 8bit-clean tty */
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2011-05-09 08:52:36 -05:00
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#define F_VCONSOLE (1<<12) /* This is a virtual console */
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#define F_HANGUP (1<<13) /* Do call vhangup(2) */
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2006-12-06 17:25:32 -06:00
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/* Storage for things detected while the login name was read. */
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struct chardata {
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2011-04-26 14:28:59 -05:00
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int erase; /* erase character */
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int kill; /* kill character */
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int eol; /* end-of-line character */
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int parity; /* what parity did we see */
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int capslock; /* upper case without lower case */
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2006-12-06 17:25:32 -06:00
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};
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/* Initial values for the above. */
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struct chardata init_chardata = {
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2011-04-26 14:28:59 -05:00
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DEF_ERASE, /* default erase character */
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DEF_KILL, /* default kill character */
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13, /* default eol char */
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0, /* space parity */
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0, /* no capslock */
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2006-12-06 17:25:34 -06:00
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};
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struct Speedtab {
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2011-04-26 14:28:59 -05:00
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long speed;
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2011-05-09 08:52:34 -05:00
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speed_t code;
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2006-12-06 17:25:34 -06:00
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};
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static struct Speedtab speedtab[] = {
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2011-04-26 14:28:59 -05:00
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{50, B50},
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{75, B75},
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{110, B110},
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{134, B134},
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{150, B150},
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{200, B200},
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{300, B300},
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{600, B600},
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{1200, B1200},
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{1800, B1800},
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{2400, B2400},
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{4800, B4800},
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{9600, B9600},
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2006-12-06 17:25:34 -06:00
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#ifdef B19200
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2011-04-26 14:28:59 -05:00
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{19200, B19200},
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2006-12-06 17:25:34 -06:00
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#endif
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#ifdef B38400
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2011-04-26 14:28:59 -05:00
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{38400, B38400},
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2006-12-06 17:25:34 -06:00
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#endif
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#ifdef EXTA
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2011-04-26 14:28:59 -05:00
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{19200, EXTA},
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2006-12-06 17:25:34 -06:00
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#endif
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#ifdef EXTB
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2011-04-26 14:28:59 -05:00
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{38400, EXTB},
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2006-12-06 17:25:34 -06:00
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#endif
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#ifdef B57600
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2011-04-26 14:28:59 -05:00
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{57600, B57600},
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2006-12-06 17:25:34 -06:00
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#endif
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#ifdef B115200
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2011-04-26 14:28:59 -05:00
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{115200, B115200},
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2006-12-06 17:25:34 -06:00
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#endif
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#ifdef B230400
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2011-04-26 14:28:59 -05:00
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{230400, B230400},
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2006-12-06 17:25:34 -06:00
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#endif
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2011-04-26 14:28:59 -05:00
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{0, 0},
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2006-12-06 17:25:32 -06:00
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};
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2011-05-09 08:52:35 -05:00
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static void init_special_char(char* arg, struct options *op);
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2011-04-26 14:28:59 -05:00
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static void parse_args(int argc, char **argv, struct options *op);
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static void parse_speeds(struct options *op, char *arg);
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2011-05-09 08:52:35 -05:00
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static void update_utmp(struct options *op);
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static void open_tty(char *tty, struct termios *tp, struct options *op);
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2011-04-26 14:28:59 -05:00
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static void termio_init(struct options *op, struct termios *tp);
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static void auto_baud(struct termios *tp);
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2011-05-09 08:52:35 -05:00
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static void output_special_char (unsigned char c, struct options *op, struct termios *tp);
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2011-04-26 14:28:59 -05:00
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static void do_prompt(struct options *op, struct termios *tp);
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static void next_speed(struct options *op, struct termios *tp);
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static char *get_logname(struct options *op,
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struct termios *tp, struct chardata *cp);
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static void termio_final(struct options *op,
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struct termios *tp, struct chardata *cp);
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static int caps_lock(char *s);
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2011-05-09 08:52:34 -05:00
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static speed_t bcode(char *s);
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static void usage(FILE * out) __attribute__((__noreturn__));
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static void log_err(const char *, ...) __attribute__((__noreturn__)) __attribute__((__format__(printf, 1, 2)));
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static void log_warn (const char *, ...) __attribute__((__format__(printf, 1, 2)));
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2006-12-06 17:25:32 -06:00
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2006-12-06 17:25:41 -06:00
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/* Fake hostname for ut_host specified on command line. */
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2011-05-09 08:52:34 -05:00
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static char *fakehost;
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2006-12-06 17:25:41 -06:00
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2006-12-06 17:25:32 -06:00
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#ifdef DEBUGGING
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#define debug(s) fprintf(dbf,s); fflush(dbf)
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FILE *dbf;
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#else
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2011-04-26 14:28:59 -05:00
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#define debug(s)
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#endif /* DEBUGGING */
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2006-12-06 17:25:32 -06:00
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2011-04-26 14:28:59 -05:00
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int main(int argc, char **argv)
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2006-12-06 17:25:32 -06:00
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{
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2011-04-26 14:28:59 -05:00
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char *logname = NULL; /* login name, given to /bin/login */
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struct chardata chardata; /* will be set by get_logname() */
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2011-04-14 06:43:11 -05:00
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struct termios termios; /* terminal mode bits */
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static struct options options = {
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2011-04-26 14:28:59 -05:00
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F_ISSUE, /* show /etc/issue (SYSV_STYLE) */
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0, /* no timeout */
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_PATH_LOGIN, /* default login program */
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"tty1", /* default tty line */
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2011-05-09 08:52:35 -05:00
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0, /* line of virtual console */
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DEFAULT_VCTERM, /* terminal type */
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2011-04-26 14:28:59 -05:00
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"", /* modem init string */
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ISSUE, /* default issue file */
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2011-05-09 08:52:34 -05:00
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0, /* no baud rates known yet */
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{ 0 }
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2011-04-14 06:43:11 -05:00
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};
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2011-05-09 08:52:36 -05:00
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struct sigaction sa, sa_hup, sa_quit, sa_int;
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sigset_t set;
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2011-04-14 06:43:11 -05:00
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setlocale(LC_ALL, "");
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bindtextdomain(PACKAGE, LOCALEDIR);
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textdomain(PACKAGE);
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2011-04-14 06:25:57 -05:00
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2011-05-09 08:52:36 -05:00
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/* In case vhangup(2) has to called */
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sa.sa_handler = SIG_IGN;
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sa.sa_flags = SA_RESTART;
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sigemptyset (&sa.sa_mask);
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sigaction(SIGHUP, &sa, &sa_hup);
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sigaction(SIGQUIT, &sa, &sa_quit);
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sigaction(SIGINT, &sa, &sa_int);
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2006-12-06 17:25:32 -06:00
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#ifdef DEBUGGING
|
2006-12-06 17:25:34 -06:00
|
|
|
dbf = fopen("/dev/ttyp0", "w");
|
2011-04-26 14:28:59 -05:00
|
|
|
for (int i = 1; i < argc; i++)
|
|
|
|
debug(argv[i]);
|
|
|
|
#endif /* DEBUGGING */
|
2006-12-06 17:25:32 -06:00
|
|
|
|
2011-04-14 06:43:11 -05:00
|
|
|
/* Parse command-line arguments. */
|
|
|
|
parse_args(argc, argv, &options);
|
2006-12-06 17:25:32 -06:00
|
|
|
|
2011-04-14 06:43:11 -05:00
|
|
|
/* Update the utmp file. */
|
2006-12-06 17:25:32 -06:00
|
|
|
#ifdef SYSV_STYLE
|
2011-05-09 08:52:35 -05:00
|
|
|
update_utmp(&options);
|
2006-12-06 17:25:32 -06:00
|
|
|
#endif
|
|
|
|
|
2011-04-14 06:43:11 -05:00
|
|
|
debug("calling open_tty\n");
|
2011-04-26 14:28:59 -05:00
|
|
|
|
2011-04-14 06:43:11 -05:00
|
|
|
/* Open the tty as standard { input, output, error }. */
|
2011-05-09 08:52:35 -05:00
|
|
|
open_tty(options.tty, &termios, &options);
|
2011-04-14 06:43:11 -05:00
|
|
|
|
2011-05-09 08:52:36 -05:00
|
|
|
/* Unmask SIGHUP if inherited */
|
|
|
|
sigemptyset(&set);
|
|
|
|
sigaddset(&set, SIGHUP);
|
|
|
|
sigprocmask(SIG_UNBLOCK, &set, NULL);
|
|
|
|
sigaction(SIGHUP, &sa_hup, NULL);
|
|
|
|
|
2011-04-14 06:43:11 -05:00
|
|
|
tcsetpgrp(STDIN_FILENO, getpid());
|
|
|
|
/* Initialize the termios settings (raw mode, eight-bit, blocking i/o). */
|
|
|
|
debug("calling termio_init\n");
|
2011-04-26 14:28:59 -05:00
|
|
|
termio_init(&options, &termios);
|
2011-04-14 06:43:11 -05:00
|
|
|
|
2011-04-26 14:28:59 -05:00
|
|
|
/* Write the modem init string and DO NOT flush the buffers. */
|
2011-04-14 06:43:11 -05:00
|
|
|
if (options.flags & F_INITSTRING) {
|
|
|
|
debug("writing init string\n");
|
2011-05-09 08:52:35 -05:00
|
|
|
write_all(STDOUT_FILENO, options.initstring,
|
2011-05-09 08:52:36 -05:00
|
|
|
strlen(options.initstring));
|
2011-04-14 06:43:11 -05:00
|
|
|
}
|
|
|
|
|
2011-04-26 14:28:59 -05:00
|
|
|
if (!(options.flags & F_LOCAL))
|
|
|
|
/* Go to blocking write mode unless -L is specified. */
|
2011-04-14 06:43:11 -05:00
|
|
|
fcntl(STDOUT_FILENO, F_SETFL,
|
2011-04-26 14:28:59 -05:00
|
|
|
fcntl(STDOUT_FILENO, F_GETFL, 0) & ~O_NONBLOCK);
|
2011-04-14 06:43:11 -05:00
|
|
|
|
|
|
|
/* 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)
|
2011-04-26 14:28:59 -05:00
|
|
|
alarm((unsigned)options.timeout);
|
2011-04-14 06:43:11 -05:00
|
|
|
|
2011-04-26 14:28:59 -05:00
|
|
|
/* Optionally wait for CR or LF before writing /etc/issue */
|
2011-04-14 06:43:11 -05:00
|
|
|
if (options.flags & F_WAITCRLF) {
|
|
|
|
char ch;
|
|
|
|
|
|
|
|
debug("waiting for cr-lf\n");
|
2011-04-26 14:28:59 -05:00
|
|
|
while (read(STDIN_FILENO, &ch, 1) == 1) {
|
|
|
|
/* Strip "parity bit". */
|
|
|
|
ch &= 0x7f;
|
2006-12-06 17:25:34 -06:00
|
|
|
#ifdef DEBUGGING
|
2011-04-14 06:43:11 -05:00
|
|
|
fprintf(dbf, "read %c\n", ch);
|
2006-12-06 17:25:34 -06:00
|
|
|
#endif
|
2011-04-26 14:28:59 -05:00
|
|
|
if (ch == '\n' || ch == '\r')
|
|
|
|
break;
|
2011-04-14 06:43:11 -05:00
|
|
|
}
|
2006-12-06 17:25:33 -06:00
|
|
|
}
|
|
|
|
|
2011-04-14 06:43:11 -05:00
|
|
|
chardata = init_chardata;
|
|
|
|
if (!(options.flags & F_NOPROMPT)) {
|
|
|
|
/* Read the login name. */
|
|
|
|
debug("reading login name\n");
|
2011-04-26 14:28:59 -05:00
|
|
|
while ((logname =
|
|
|
|
get_logname(&options, &termios, &chardata)) == 0)
|
|
|
|
next_speed(&options, &termios);
|
2011-04-14 06:43:11 -05:00
|
|
|
}
|
2006-12-06 17:25:32 -06:00
|
|
|
|
2011-04-14 06:43:11 -05:00
|
|
|
/* Disable timer. */
|
|
|
|
if (options.timeout)
|
2011-04-26 14:28:59 -05:00
|
|
|
alarm(0);
|
2006-12-06 17:25:32 -06:00
|
|
|
|
2011-04-14 06:43:11 -05:00
|
|
|
/* Finalize the termios settings. */
|
|
|
|
termio_final(&options, &termios, &chardata);
|
2006-12-06 17:25:32 -06:00
|
|
|
|
2011-04-14 06:43:11 -05:00
|
|
|
/* Now the newline character should be properly written. */
|
2011-05-09 08:52:35 -05:00
|
|
|
write_all(STDOUT_FILENO, "\n", 1);
|
2006-12-06 17:25:32 -06:00
|
|
|
|
2011-05-09 08:52:36 -05:00
|
|
|
sigaction (SIGQUIT, &sa_quit, NULL);
|
|
|
|
sigaction (SIGINT, &sa_int, NULL);
|
|
|
|
|
2011-04-14 06:43:11 -05:00
|
|
|
/* Let the login program take care of password validation. */
|
2011-04-26 14:28:59 -05:00
|
|
|
execl(options.login, options.login, "--", logname, NULL);
|
2011-05-09 08:52:34 -05:00
|
|
|
log_err(_("%s: can't exec %s: %m"), options.tty, options.login);
|
2006-12-06 17:25:32 -06:00
|
|
|
}
|
|
|
|
|
2011-04-26 14:28:59 -05:00
|
|
|
/* Parse command-line arguments. */
|
2011-05-09 08:52:34 -05:00
|
|
|
static void parse_args(int argc, char **argv, struct options *op)
|
2006-12-06 17:25:32 -06:00
|
|
|
{
|
2011-04-26 14:28:59 -05:00
|
|
|
extern char *optarg;
|
|
|
|
extern int optind;
|
|
|
|
int c;
|
2011-04-14 06:43:11 -05:00
|
|
|
|
|
|
|
enum {
|
|
|
|
VERSION_OPTION = CHAR_MAX + 1,
|
|
|
|
HELP_OPTION
|
|
|
|
};
|
2011-05-09 08:52:36 -05:00
|
|
|
const struct option longopts[] = {
|
2011-04-14 06:43:11 -05:00
|
|
|
{ "8bits", no_argument, 0, '8' },
|
|
|
|
{ "noreset", no_argument, 0, 'c' },
|
|
|
|
{ "issue-file", required_argument, 0, 'f' },
|
|
|
|
{ "flow-control", no_argument, 0, 'h' },
|
|
|
|
{ "host", required_argument, 0, 'H' },
|
|
|
|
{ "noissue", no_argument, 0, 'i' },
|
|
|
|
{ "init-string", required_argument, 0, 'I' },
|
|
|
|
{ "login-program", required_argument, 0, 'l' },
|
|
|
|
{ "local-line", no_argument, 0, 'L' },
|
|
|
|
{ "extract-baud", no_argument, 0, 'm' },
|
|
|
|
{ "skip-login", no_argument, 0, 'n' },
|
2011-05-09 08:52:36 -05:00
|
|
|
{ "hangup", no_argument, 0, 'R' },
|
2011-04-14 06:43:11 -05:00
|
|
|
{ "keep-baud", no_argument, 0, 's' },
|
|
|
|
{ "timeout", required_argument, 0, 't' },
|
|
|
|
{ "detect-case", no_argument, 0, 'U' },
|
|
|
|
{ "wait-cr", no_argument, 0, 'w' },
|
|
|
|
{ "version", no_argument, 0, VERSION_OPTION },
|
|
|
|
{ "help", no_argument, 0, HELP_OPTION },
|
|
|
|
{ NULL, 0, 0, 0 }
|
|
|
|
};
|
|
|
|
|
2011-05-09 08:52:36 -05:00
|
|
|
while ((c = getopt_long(argc, argv, "8cf:hH:iI:l:LmnsRt:Uw", longopts,
|
2011-04-26 14:28:59 -05:00
|
|
|
NULL)) != -1) {
|
2011-04-14 06:43:11 -05:00
|
|
|
switch (c) {
|
|
|
|
case '8':
|
2011-05-09 08:52:34 -05:00
|
|
|
op->flags |= F_EIGHTBITS;
|
2011-04-14 06:43:11 -05:00
|
|
|
break;
|
|
|
|
case 'c':
|
|
|
|
op->flags |= F_KEEPCFLAGS;
|
|
|
|
break;
|
2011-04-26 14:28:59 -05:00
|
|
|
case 'f':
|
2011-04-14 06:43:11 -05:00
|
|
|
op->flags |= F_CUSTISSUE;
|
|
|
|
op->issue = optarg;
|
|
|
|
break;
|
2011-04-26 14:28:59 -05:00
|
|
|
case 'h':
|
2011-04-14 06:43:11 -05:00
|
|
|
op->flags |= F_RTSCTS;
|
|
|
|
break;
|
2011-04-26 14:28:59 -05:00
|
|
|
case 'H':
|
2011-04-14 06:43:11 -05:00
|
|
|
fakehost = optarg;
|
|
|
|
break;
|
2011-04-26 14:28:59 -05:00
|
|
|
case 'i':
|
2011-04-14 06:43:11 -05:00
|
|
|
op->flags &= ~F_ISSUE;
|
|
|
|
break;
|
|
|
|
case 'I':
|
2011-05-09 08:52:35 -05:00
|
|
|
init_special_char(optarg, op);
|
|
|
|
op->flags |= F_INITSTRING;
|
|
|
|
break;
|
2011-04-14 06:43:11 -05:00
|
|
|
case 'l':
|
2011-04-26 14:28:59 -05:00
|
|
|
op->login = optarg;
|
2011-04-14 06:43:11 -05:00
|
|
|
break;
|
2011-04-26 14:28:59 -05:00
|
|
|
case 'L':
|
2011-04-14 06:43:11 -05:00
|
|
|
op->flags |= F_LOCAL;
|
|
|
|
break;
|
2011-04-26 14:28:59 -05:00
|
|
|
case 'm':
|
2011-04-14 06:43:11 -05:00
|
|
|
op->flags |= F_PARSE;
|
|
|
|
break;
|
|
|
|
case 'n':
|
|
|
|
op->flags |= F_NOPROMPT;
|
|
|
|
break;
|
2011-05-09 08:52:36 -05:00
|
|
|
case 'R':
|
|
|
|
op->flags |= F_HANGUP;
|
|
|
|
break;
|
2011-04-14 06:43:11 -05:00
|
|
|
case 's':
|
2011-04-26 14:28:59 -05:00
|
|
|
op->flags |= F_KEEPSPEED;
|
2011-04-14 06:43:11 -05:00
|
|
|
break;
|
2011-04-26 14:28:59 -05:00
|
|
|
case 't':
|
2011-04-14 06:43:11 -05:00
|
|
|
if ((op->timeout = atoi(optarg)) <= 0)
|
2011-05-09 08:52:34 -05:00
|
|
|
log_err(_("bad timeout value: %s"), optarg);
|
2011-04-14 06:43:11 -05:00
|
|
|
break;
|
|
|
|
case 'U':
|
|
|
|
op->flags |= F_LCUC;
|
|
|
|
break;
|
|
|
|
case 'w':
|
|
|
|
op->flags |= F_WAITCRLF;
|
|
|
|
break;
|
|
|
|
case VERSION_OPTION:
|
|
|
|
printf(_("%s from %s\n"), program_invocation_short_name,
|
2011-04-26 14:28:59 -05:00
|
|
|
PACKAGE_STRING);
|
2011-04-14 06:43:11 -05:00
|
|
|
exit(EXIT_SUCCESS);
|
|
|
|
case HELP_OPTION:
|
|
|
|
usage(stdout);
|
|
|
|
default:
|
|
|
|
usage(stderr);
|
2006-12-06 17:25:33 -06:00
|
|
|
}
|
2006-12-06 17:25:32 -06:00
|
|
|
}
|
2011-04-14 06:43:11 -05:00
|
|
|
|
|
|
|
debug("after getopt loop\n");
|
|
|
|
|
2011-05-09 08:52:35 -05:00
|
|
|
if (argc < optind + 1) {
|
2011-05-09 08:52:34 -05:00
|
|
|
log_warn(_("not enough arguments"));
|
2011-04-14 06:43:11 -05:00
|
|
|
usage(stderr);
|
|
|
|
}
|
|
|
|
|
2011-05-09 08:52:35 -05:00
|
|
|
/* Accept "tty", "baudrate tty", and "tty baudrate". */
|
2011-04-26 14:28:59 -05:00
|
|
|
if ('0' <= argv[optind][0] && argv[optind][0] <= '9') {
|
|
|
|
/* Assume BSD style speed. */
|
|
|
|
parse_speeds(op, argv[optind++]);
|
2011-05-09 08:52:35 -05:00
|
|
|
if (argc < optind + 1) {
|
|
|
|
warn(_("not enough arguments"));
|
|
|
|
usage(stderr);
|
|
|
|
}
|
|
|
|
op->tty = argv[optind++];
|
2011-04-14 06:43:11 -05:00
|
|
|
} else {
|
2011-04-26 14:28:59 -05:00
|
|
|
op->tty = argv[optind++];
|
2011-05-09 08:52:35 -05:00
|
|
|
if (argc > optind) {
|
|
|
|
char *v = argv[optind++];
|
|
|
|
if ('0' <= *v && *v <= '9')
|
|
|
|
parse_speeds(op, v);
|
|
|
|
else
|
|
|
|
op->speeds[op->numspeed++] = bcode("9600");
|
|
|
|
}
|
2011-04-14 06:43:11 -05:00
|
|
|
}
|
|
|
|
|
2011-05-09 08:52:35 -05:00
|
|
|
/* On virtual console remember the line which is used for */
|
|
|
|
if (strncmp(op->tty, "tty", 3) == 0 &&
|
|
|
|
strspn(op->tty + 3, "0123456789") == strlen(op->tty+3))
|
|
|
|
op->vcline = op->tty+3;
|
|
|
|
|
2011-04-14 06:43:11 -05:00
|
|
|
if (argc > optind && argv[optind])
|
2011-05-09 08:52:35 -05:00
|
|
|
op->term = argv[optind];
|
2006-12-06 17:25:32 -06:00
|
|
|
|
2006-12-06 17:25:44 -06:00
|
|
|
#ifdef DO_DEVFS_FIDDLING
|
2011-04-14 06:43:11 -05:00
|
|
|
/*
|
2011-04-26 14:28:59 -05:00
|
|
|
* Some devfs junk, following Goswin Brederlow:
|
2011-04-14 06:43:11 -05:00
|
|
|
* turn ttyS<n> into tts/<n>
|
|
|
|
* turn tty<n> into vc/<n>
|
2011-04-26 14:28:59 -05:00
|
|
|
* http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=72241
|
2011-04-14 06:43:11 -05:00
|
|
|
*/
|
|
|
|
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 = xstrdup(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 = xstrdup(dev_name + 5);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
2011-04-26 14:28:59 -05:00
|
|
|
#endif /* DO_DEVFS_FIDDLING */
|
2006-12-06 17:25:44 -06:00
|
|
|
|
2011-04-14 06:43:11 -05:00
|
|
|
debug("exiting parseargs\n");
|
2006-12-06 17:25:32 -06:00
|
|
|
}
|
|
|
|
|
2011-04-26 14:28:59 -05:00
|
|
|
/* Parse alternate baud rates. */
|
2011-05-09 08:52:34 -05:00
|
|
|
static void parse_speeds(struct options *op, char *arg)
|
2006-12-06 17:25:32 -06:00
|
|
|
{
|
2011-04-26 14:28:59 -05:00
|
|
|
char *cp;
|
2006-12-06 17:25:32 -06:00
|
|
|
|
2007-09-29 08:18:28 -05:00
|
|
|
debug("entered parse_speeds\n");
|
2011-04-26 14:28:59 -05:00
|
|
|
for (cp = strtok(arg, ","); cp != 0; cp = strtok((char *)0, ",")) {
|
2011-04-14 06:43:11 -05:00
|
|
|
if ((op->speeds[op->numspeed++] = bcode(cp)) <= 0)
|
2011-05-09 08:52:34 -05:00
|
|
|
log_err(_("bad speed: %s"), cp);
|
2011-04-14 06:43:11 -05:00
|
|
|
if (op->numspeed >= MAX_SPEED)
|
2011-05-09 08:52:34 -05:00
|
|
|
log_err(_("too many alternate speeds"));
|
2011-04-14 06:43:11 -05:00
|
|
|
}
|
|
|
|
debug("exiting parsespeeds\n");
|
2006-12-06 17:25:32 -06:00
|
|
|
}
|
|
|
|
|
|
|
|
#ifdef SYSV_STYLE
|
|
|
|
|
2011-04-26 14:28:59 -05:00
|
|
|
/* Update our utmp entry. */
|
2011-05-09 08:52:35 -05:00
|
|
|
static void update_utmp(struct options *op)
|
2006-12-06 17:25:32 -06:00
|
|
|
{
|
2011-04-26 14:28:59 -05:00
|
|
|
struct utmp ut;
|
|
|
|
time_t t;
|
2011-05-09 08:52:35 -05:00
|
|
|
pid_t pid = getpid();
|
|
|
|
pid_t sid = getsid(0);
|
|
|
|
char *vcline = op->vcline;
|
|
|
|
char *line = op->tty;
|
2011-04-26 14:28:59 -05:00
|
|
|
struct utmp *utp;
|
2011-04-14 06:43:11 -05:00
|
|
|
|
|
|
|
/*
|
|
|
|
* 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();
|
|
|
|
|
2011-04-26 14:28:59 -05:00
|
|
|
/*
|
2011-05-09 08:52:35 -05:00
|
|
|
* Find my pid in utmp.
|
2011-04-26 14:28:59 -05:00
|
|
|
*
|
|
|
|
* FIXME: Earlier (when was that?) code here tested only utp->ut_type !=
|
|
|
|
* INIT_PROCESS, so maybe the >= here should be >.
|
|
|
|
*
|
|
|
|
* FIXME: The present code is taken from login.c, so if this is changed,
|
|
|
|
* maybe login has to be changed as well (is this true?).
|
|
|
|
*/
|
2011-04-14 06:43:11 -05:00
|
|
|
while ((utp = getutent()))
|
2011-05-09 08:52:35 -05:00
|
|
|
if (utp->ut_pid == pid
|
2011-04-14 06:43:11 -05:00
|
|
|
&& utp->ut_type >= INIT_PROCESS
|
|
|
|
&& utp->ut_type <= DEAD_PROCESS)
|
|
|
|
break;
|
|
|
|
|
|
|
|
if (utp) {
|
|
|
|
memcpy(&ut, utp, sizeof(ut));
|
|
|
|
} else {
|
2011-04-26 14:28:59 -05:00
|
|
|
/* Some inits do not initialize utmp. */
|
2011-04-14 06:43:11 -05:00
|
|
|
memset(&ut, 0, sizeof(ut));
|
2011-05-09 08:52:35 -05:00
|
|
|
if (vcline && *vcline)
|
|
|
|
/* Standard virtual console devices */
|
|
|
|
strncpy (ut.ut_id, vcline, sizeof (ut.ut_id));
|
|
|
|
else {
|
|
|
|
size_t len = strlen(line);
|
|
|
|
char * ptr;
|
|
|
|
if (len >= sizeof (ut.ut_id))
|
|
|
|
ptr = line + len - sizeof (ut.ut_id);
|
|
|
|
else
|
|
|
|
ptr = line;
|
|
|
|
strncpy (ut.ut_id, ptr, sizeof(ut.ut_id));
|
|
|
|
}
|
2011-04-14 06:43:11 -05:00
|
|
|
}
|
|
|
|
|
|
|
|
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;
|
2011-05-09 08:52:35 -05:00
|
|
|
ut.ut_pid = pid;
|
|
|
|
ut.ut_session = sid;
|
2011-04-14 06:43:11 -05:00
|
|
|
|
|
|
|
pututline(&ut);
|
|
|
|
endutent();
|
|
|
|
|
|
|
|
{
|
2006-12-06 17:26:54 -06:00
|
|
|
#ifdef HAVE_UPDWTMP
|
2011-04-14 06:43:11 -05:00
|
|
|
updwtmp(_PATH_WTMP, &ut);
|
2006-12-06 17:25:37 -06:00
|
|
|
#else
|
2011-04-14 06:43:11 -05:00
|
|
|
int ut_fd;
|
|
|
|
int lf;
|
|
|
|
|
2011-04-26 14:28:59 -05:00
|
|
|
if ((lf = open(_PATH_WTMPLOCK, O_CREAT | O_WRONLY, 0660)) >= 0) {
|
2011-04-14 06:43:11 -05:00
|
|
|
flock(lf, LOCK_EX);
|
2011-04-26 14:28:59 -05:00
|
|
|
if ((ut_fd =
|
|
|
|
open(_PATH_WTMP, O_APPEND | O_WRONLY)) >= 0) {
|
2011-05-09 08:52:35 -05:00
|
|
|
write_all(ut_fd, &ut, sizeof(ut));
|
2011-04-14 06:43:11 -05:00
|
|
|
close(ut_fd);
|
|
|
|
}
|
|
|
|
flock(lf, LOCK_UN);
|
|
|
|
close(lf);
|
|
|
|
}
|
2011-04-26 14:28:59 -05:00
|
|
|
#endif /* HAVE_UPDWTMP */
|
2011-04-14 06:43:11 -05:00
|
|
|
}
|
2006-12-06 17:25:32 -06:00
|
|
|
}
|
|
|
|
|
2011-04-26 14:28:59 -05:00
|
|
|
#endif /* SYSV_STYLE */
|
2006-12-06 17:25:32 -06:00
|
|
|
|
2011-04-26 14:28:59 -05:00
|
|
|
/* Set up tty as stdin, stdout & stderr. */
|
2011-05-09 08:52:35 -05:00
|
|
|
static void open_tty(char *tty, struct termios *tp, struct options *op)
|
2006-12-06 17:25:32 -06:00
|
|
|
{
|
2011-05-09 08:52:36 -05:00
|
|
|
const pid_t pid = getpid();
|
|
|
|
int serial;
|
2006-12-06 17:25:32 -06:00
|
|
|
|
2011-05-09 08:52:36 -05:00
|
|
|
/* Set up new standard input, unless we are given an already opened port. */
|
|
|
|
|
|
|
|
if (strcmp(tty, "-") != 0) {
|
|
|
|
char buf[PATH_MAX+1];
|
|
|
|
struct group *gr = NULL;
|
2011-04-14 06:43:11 -05:00
|
|
|
struct stat st;
|
2011-05-09 08:52:36 -05:00
|
|
|
int fd, len;
|
|
|
|
pid_t tid;
|
|
|
|
gid_t gid = 0;
|
|
|
|
|
|
|
|
/* Use tty group if available */
|
|
|
|
if ((gr = getgrnam("tty")))
|
|
|
|
gid = gr->gr_gid;
|
|
|
|
|
|
|
|
if (((len = snprintf(buf, sizeof(buf), "/dev/%s", tty)) >= (int)sizeof(buf)) || (len < 0))
|
|
|
|
log_err(_("/dev/%s: cannot open as standard input: %m"), tty);
|
|
|
|
|
|
|
|
/*
|
|
|
|
* There is always a race between this reset and the call to
|
|
|
|
* vhangup() that s.o. can use to get access to your tty.
|
|
|
|
* Linux login(1) will change tty permissions. Use root owner and group
|
|
|
|
* with permission -rw------- for the period between getty and login.
|
|
|
|
*/
|
|
|
|
if (chown (buf, 0, gid) || chmod (buf, (gid ? 0660 : 0600))) {
|
|
|
|
if (errno == EROFS)
|
|
|
|
log_warn("%s: %m", buf);
|
|
|
|
else
|
|
|
|
log_err("%s: %m", buf);
|
|
|
|
}
|
2006-12-06 17:25:32 -06:00
|
|
|
|
2011-05-09 08:52:36 -05:00
|
|
|
/* Open the tty as standard input. */
|
|
|
|
if ((fd = open(buf, O_RDWR|O_NOCTTY|O_NONBLOCK, 0)) < 0)
|
|
|
|
log_err(_("/dev/%s: cannot open as standard input: %m"), tty);
|
|
|
|
|
|
|
|
/* Sanity checks... */
|
|
|
|
if (!isatty (fd))
|
|
|
|
log_err(_("/dev/%s: not a character device"), tty);
|
|
|
|
if (fstat(fd, &st) < 0)
|
|
|
|
log_err ("%s: %m", buf);
|
2011-04-14 06:43:11 -05:00
|
|
|
if ((st.st_mode & S_IFMT) != S_IFCHR)
|
2011-05-09 08:52:34 -05:00
|
|
|
log_err(_("/dev/%s: not a character device"), tty);
|
2006-12-06 17:25:32 -06:00
|
|
|
|
2011-05-09 08:52:36 -05:00
|
|
|
if (((tid = tcgetsid(fd)) < 0) || (pid != tid)) {
|
|
|
|
if (ioctl (fd, TIOCSCTTY, 1) == -1)
|
|
|
|
log_err("/dev/%s: cannot get controlling tty: %m", tty);
|
|
|
|
}
|
|
|
|
|
|
|
|
if (op->flags & F_HANGUP) {
|
|
|
|
/*
|
|
|
|
* vhangup() will replace all open file descriptors in the kernel
|
|
|
|
* that point to our controlling tty by a dummy that will deny
|
|
|
|
* further reading/writing to our device. It will also reset the
|
|
|
|
* tty to sane defaults, so we don't have to modify the tty device
|
|
|
|
* for sane settings. We also get a SIGHUP/SIGCONT.
|
|
|
|
*/
|
|
|
|
if (vhangup())
|
|
|
|
log_err("/dev/%s: vhangup() failed: %m", tty);
|
|
|
|
(void)ioctl(fd, TIOCNOTTY);
|
|
|
|
}
|
|
|
|
|
|
|
|
(void) close(fd);
|
2011-04-26 14:28:59 -05:00
|
|
|
close(STDIN_FILENO);
|
|
|
|
errno = 0;
|
2006-12-06 17:25:32 -06:00
|
|
|
|
2011-04-14 06:43:11 -05:00
|
|
|
debug("open(2)\n");
|
2011-05-09 08:52:36 -05:00
|
|
|
if (open(buf, O_RDWR|O_NOCTTY|O_NONBLOCK, 0) != 0)
|
|
|
|
log_err(_("/dev/%s: cannot open as standard input: %m"), tty);
|
|
|
|
if (((tid = tcgetsid(STDIN_FILENO)) < 0) || (pid != tid)) {
|
|
|
|
if (ioctl (STDIN_FILENO, TIOCSCTTY, 1) == -1)
|
|
|
|
log_err("/dev/%s: cannot get controlling tty: %m", tty);
|
|
|
|
}
|
|
|
|
|
2011-04-14 06:43:11 -05:00
|
|
|
} else {
|
2011-05-09 08:52:36 -05:00
|
|
|
|
2011-04-14 06:43:11 -05:00
|
|
|
/*
|
|
|
|
* Standard input should already be connected to an open port. Make
|
|
|
|
* sure it is open for read/write.
|
|
|
|
*/
|
2011-05-09 08:52:36 -05:00
|
|
|
|
2011-04-14 06:43:11 -05:00
|
|
|
if ((fcntl(STDIN_FILENO, F_GETFL, 0) & O_RDWR) != O_RDWR)
|
2011-05-09 08:52:34 -05:00
|
|
|
log_err(_("%s: not open for read/write"), tty);
|
2011-05-09 08:52:36 -05:00
|
|
|
|
2011-04-14 06:43:11 -05:00
|
|
|
}
|
|
|
|
|
2011-05-09 08:52:36 -05:00
|
|
|
if (tcsetpgrp(STDIN_FILENO, pid))
|
|
|
|
log_err("/dev/%s: cannot set process group: %m", tty);
|
|
|
|
|
|
|
|
/* Get rid of the present outputs. */
|
|
|
|
close(STDOUT_FILENO);
|
|
|
|
close(STDERR_FILENO);
|
|
|
|
errno = 0;
|
|
|
|
|
2011-04-14 06:43:11 -05:00
|
|
|
/* Set up standard output and standard error file descriptors. */
|
|
|
|
debug("duping\n");
|
2011-04-26 14:28:59 -05:00
|
|
|
|
2011-04-14 06:43:11 -05:00
|
|
|
/* set up stdout and stderr */
|
|
|
|
if (dup(STDIN_FILENO) != 1 || dup(STDIN_FILENO) != 2)
|
2011-05-09 08:52:34 -05:00
|
|
|
log_err(_("%s: dup problem: %m"), tty);
|
2006-12-06 17:25:32 -06:00
|
|
|
|
2011-05-09 08:52:36 -05:00
|
|
|
/* make stdio unbuffered for slow modem lines */
|
|
|
|
setvbuf(stdout, NULL, _IONBF, 0);
|
|
|
|
|
2006-12-06 17:25:32 -06:00
|
|
|
/*
|
2011-04-14 06:43:11 -05:00
|
|
|
* 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
|
2011-04-26 14:28:59 -05:00
|
|
|
* 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.
|
|
|
|
* http://www.sunmanagers.org/archives/1993/0574.html
|
2006-12-06 17:25:32 -06:00
|
|
|
*/
|
2011-05-09 08:52:34 -05:00
|
|
|
memset(tp, 0, sizeof(struct termios));
|
2011-04-14 06:43:11 -05:00
|
|
|
if (tcgetattr(STDIN_FILENO, tp) < 0)
|
2011-05-09 08:52:34 -05:00
|
|
|
log_err("%s: tcgetattr: %m", tty);
|
2011-04-14 06:43:11 -05:00
|
|
|
|
|
|
|
/*
|
2011-05-09 08:52:36 -05:00
|
|
|
* Detect if this is a virtual console or serial/modem line.
|
|
|
|
* In case of a virtual console the ioctl TIOCMGET fails and
|
|
|
|
* the error number will be set to EINVAL.
|
2011-04-14 06:43:11 -05:00
|
|
|
*/
|
2011-05-09 08:52:36 -05:00
|
|
|
if (ioctl(STDIN_FILENO, TIOCMGET, &serial) < 0 && (errno = EINVAL)) {
|
|
|
|
op->flags |= F_VCONSOLE;
|
|
|
|
if (!op->term)
|
|
|
|
op->term = DEFAULT_VCTERM;
|
|
|
|
} else if (!op->term)
|
|
|
|
op->term = DEFAULT_STERM;
|
2011-05-09 08:52:35 -05:00
|
|
|
|
|
|
|
setenv("TERM", op->term, 1);
|
2006-12-06 17:25:32 -06:00
|
|
|
}
|
|
|
|
|
2011-04-26 14:28:59 -05:00
|
|
|
/* Initialize termios settings. */
|
2011-05-09 08:52:34 -05:00
|
|
|
static void termio_init(struct options *op, struct termios *tp)
|
2006-12-06 17:25:32 -06:00
|
|
|
{
|
2011-04-14 06:43:11 -05:00
|
|
|
speed_t ispeed, ospeed;
|
|
|
|
|
|
|
|
if (op->flags & F_KEEPSPEED) {
|
2011-04-26 14:28:59 -05:00
|
|
|
/* Save the original setting. */
|
|
|
|
ispeed = cfgetispeed(tp);
|
2011-04-14 06:43:11 -05:00
|
|
|
ospeed = cfgetospeed(tp);
|
2011-04-26 14:28:59 -05:00
|
|
|
} else {
|
2011-04-14 06:43:11 -05:00
|
|
|
ospeed = ispeed = op->speeds[FIRST_SPEED];
|
2011-04-26 14:28:59 -05:00
|
|
|
}
|
2011-04-14 06:43:11 -05:00
|
|
|
|
|
|
|
/*
|
|
|
|
* 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
|
2011-04-26 14:28:59 -05:00
|
|
|
* later on.
|
2011-04-14 06:43:11 -05:00
|
|
|
*/
|
2011-04-26 14:28:59 -05:00
|
|
|
|
|
|
|
/* Flush input and output queues, important for modems! */
|
|
|
|
tcflush(STDIN_FILENO, TCIOFLUSH);
|
2011-04-14 06:43:11 -05:00
|
|
|
|
|
|
|
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);
|
|
|
|
|
2011-04-26 14:28:59 -05:00
|
|
|
/*
|
|
|
|
* Note that the speed is stored in the c_cflag termios field, so we have
|
2011-04-14 06:43:11 -05:00
|
|
|
* set the speed always when the cflag se reseted.
|
|
|
|
*/
|
|
|
|
cfsetispeed(tp, ispeed);
|
|
|
|
cfsetospeed(tp, ospeed);
|
|
|
|
|
2011-04-26 14:28:59 -05:00
|
|
|
if (op->flags & F_LOCAL)
|
2011-04-14 06:43:11 -05:00
|
|
|
tp->c_cflag |= CLOCAL;
|
2009-02-05 16:37:37 -06:00
|
|
|
#ifdef HAVE_STRUCT_TERMIOS_C_LINE
|
2011-04-14 06:43:11 -05:00
|
|
|
tp->c_line = 0;
|
2008-01-03 09:40:32 -06:00
|
|
|
#endif
|
2011-04-14 06:43:11 -05:00
|
|
|
tp->c_cc[VMIN] = 1;
|
|
|
|
tp->c_cc[VTIME] = 0;
|
2006-12-06 17:25:39 -06:00
|
|
|
|
2011-04-26 14:28:59 -05:00
|
|
|
/* Optionally enable hardware flow control. */
|
2006-12-06 17:25:39 -06:00
|
|
|
#ifdef CRTSCTS
|
2011-04-14 06:43:11 -05:00
|
|
|
if (op->flags & F_RTSCTS)
|
|
|
|
tp->c_cflag |= CRTSCTS;
|
2006-12-06 17:25:39 -06:00
|
|
|
#endif
|
|
|
|
|
2011-04-26 14:28:59 -05:00
|
|
|
tcsetattr(STDIN_FILENO, TCSANOW, tp);
|
2006-12-06 17:25:34 -06:00
|
|
|
|
2011-04-26 14:28:59 -05:00
|
|
|
/* Go to blocking input even in local mode. */
|
|
|
|
fcntl(STDIN_FILENO, F_SETFL,
|
|
|
|
fcntl(STDIN_FILENO, F_GETFL, 0) & ~O_NONBLOCK);
|
2006-12-06 17:25:34 -06:00
|
|
|
|
2011-04-14 06:43:11 -05:00
|
|
|
debug("term_io 2\n");
|
2006-12-06 17:25:32 -06:00
|
|
|
}
|
|
|
|
|
2011-04-26 14:28:59 -05:00
|
|
|
/* Extract baud rate from modem status message. */
|
2011-05-09 08:52:34 -05:00
|
|
|
static void auto_baud(struct termios *tp)
|
2006-12-06 17:25:32 -06:00
|
|
|
{
|
2011-05-09 08:52:34 -05:00
|
|
|
speed_t speed;
|
2011-04-26 14:28:59 -05:00
|
|
|
int vmin;
|
2011-04-14 06:43:11 -05:00
|
|
|
unsigned iflag;
|
2011-04-26 14:28:59 -05:00
|
|
|
char buf[BUFSIZ];
|
|
|
|
char *bp;
|
|
|
|
int nread;
|
2011-04-14 06:43:11 -05:00
|
|
|
|
|
|
|
/*
|
|
|
|
* 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
|
2011-04-26 14:28:59 -05:00
|
|
|
* be dealt with later on.
|
2011-04-14 06:43:11 -05:00
|
|
|
*/
|
|
|
|
iflag = tp->c_iflag;
|
2011-04-26 14:28:59 -05:00
|
|
|
/* Enable 8th-bit stripping. */
|
|
|
|
tp->c_iflag |= ISTRIP;
|
2011-04-14 06:43:11 -05:00
|
|
|
vmin = tp->c_cc[VMIN];
|
2011-04-26 14:28:59 -05:00
|
|
|
/* Do not block when queue is empty. */
|
|
|
|
tp->c_cc[VMIN] = 0;
|
2011-04-14 06:43:11 -05:00
|
|
|
tcsetattr(STDIN_FILENO, 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.
|
|
|
|
*/
|
2011-04-26 14:28:59 -05:00
|
|
|
sleep(1);
|
2011-04-14 06:43:11 -05:00
|
|
|
if ((nread = read(STDIN_FILENO, buf, sizeof(buf) - 1)) > 0) {
|
|
|
|
buf[nread] = '\0';
|
2011-04-26 14:28:59 -05:00
|
|
|
for (bp = buf; bp < buf + nread; bp++)
|
2011-04-14 06:43:11 -05:00
|
|
|
if (isascii(*bp) && isdigit(*bp)) {
|
|
|
|
if ((speed = bcode(bp))) {
|
|
|
|
cfsetispeed(tp, speed);
|
|
|
|
cfsetospeed(tp, speed);
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
}
|
2006-12-06 17:25:32 -06:00
|
|
|
}
|
|
|
|
|
2011-04-26 14:28:59 -05:00
|
|
|
/* Restore terminal settings. Errors will be dealt with later on. */
|
2011-04-14 06:43:11 -05:00
|
|
|
tp->c_iflag = iflag;
|
|
|
|
tp->c_cc[VMIN] = vmin;
|
2011-04-26 14:28:59 -05:00
|
|
|
tcsetattr(STDIN_FILENO, TCSANOW, tp);
|
2006-12-06 17:25:32 -06:00
|
|
|
}
|
|
|
|
|
2011-04-26 14:28:59 -05:00
|
|
|
/* Show login prompt, optionally preceded by /etc/issue contents. */
|
2011-05-09 08:52:34 -05:00
|
|
|
static void do_prompt(struct options *op, struct termios *tp)
|
2006-12-06 17:25:32 -06:00
|
|
|
{
|
|
|
|
#ifdef ISSUE
|
2011-04-26 14:28:59 -05:00
|
|
|
FILE *fd;
|
|
|
|
#endif /* ISSUE */
|
2006-12-06 17:25:32 -06:00
|
|
|
|
2011-04-26 14:28:59 -05:00
|
|
|
/* Issue not in use, start with a new line. */
|
2011-05-09 08:52:35 -05:00
|
|
|
write_all(STDOUT_FILENO, "\r\n", 2);
|
2011-05-09 08:52:36 -05:00
|
|
|
|
2011-04-26 14:28:59 -05:00
|
|
|
#ifdef ISSUE
|
2011-04-14 06:43:11 -05:00
|
|
|
if ((op->flags & F_ISSUE) && (fd = fopen(op->issue, "r"))) {
|
2011-05-09 08:52:36 -05:00
|
|
|
int c, oflag;
|
|
|
|
|
2011-04-26 14:28:59 -05:00
|
|
|
/* Save current setting. */
|
|
|
|
oflag = tp->c_oflag;
|
|
|
|
/* Map new line in output to carriage return & new line. */
|
|
|
|
tp->c_oflag |= (ONLCR | OPOST);
|
|
|
|
tcsetattr(STDIN_FILENO, TCSADRAIN, tp);
|
2011-04-14 06:43:11 -05:00
|
|
|
|
|
|
|
while ((c = getc(fd)) != EOF) {
|
2011-05-09 08:52:35 -05:00
|
|
|
if (c == '\\')
|
|
|
|
output_special_char(getc(fd), op, tp);
|
|
|
|
else
|
|
|
|
(void) putchar(c);
|
2011-04-14 06:43:11 -05:00
|
|
|
}
|
|
|
|
fflush(stdout);
|
2006-12-06 17:25:32 -06:00
|
|
|
|
2011-04-26 14:28:59 -05:00
|
|
|
/* Restore settings. */
|
|
|
|
tp->c_oflag = oflag;
|
|
|
|
/* Wait till output is gone. */
|
|
|
|
tcsetattr(STDIN_FILENO, TCSADRAIN, tp);
|
|
|
|
fclose(fd);
|
2006-12-06 17:25:32 -06:00
|
|
|
}
|
2011-04-26 14:28:59 -05:00
|
|
|
#endif /* ISSUE */
|
2011-04-14 06:43:11 -05:00
|
|
|
{
|
2011-04-26 14:28:59 -05:00
|
|
|
char hn[MAXHOSTNAMELEN + 1];
|
2011-04-14 06:43:11 -05:00
|
|
|
if (gethostname(hn, sizeof(hn)) == 0)
|
2011-05-09 08:52:35 -05:00
|
|
|
write_all(STDOUT_FILENO, hn, strlen(hn));
|
2011-04-14 06:43:11 -05:00
|
|
|
}
|
2011-04-26 14:28:59 -05:00
|
|
|
/* Always show login prompt. */
|
2011-05-09 08:52:35 -05:00
|
|
|
write_all(STDOUT_FILENO, LOGIN, sizeof(LOGIN) - 1);
|
2006-12-06 17:25:32 -06:00
|
|
|
}
|
|
|
|
|
2011-04-26 14:28:59 -05:00
|
|
|
/* Select next baud rate. */
|
2011-05-09 08:52:34 -05:00
|
|
|
static void next_speed(struct options *op, struct termios *tp)
|
2006-12-06 17:25:32 -06:00
|
|
|
{
|
2011-04-14 06:43:11 -05:00
|
|
|
static int baud_index = -1;
|
|
|
|
|
|
|
|
if (baud_index == -1)
|
|
|
|
/*
|
2011-04-26 14:28:59 -05:00
|
|
|
* If the F_KEEPSPEED flags is set then the FIRST_SPEED is not
|
2011-04-14 06:43:11 -05:00
|
|
|
* tested yet (see termio_init()).
|
|
|
|
*/
|
2011-04-26 14:28:59 -05:00
|
|
|
baud_index =
|
|
|
|
(op->flags & F_KEEPSPEED) ? FIRST_SPEED : 1 % op->numspeed;
|
2011-04-14 06:43:11 -05:00
|
|
|
else
|
|
|
|
baud_index = (baud_index + 1) % op->numspeed;
|
|
|
|
|
|
|
|
cfsetispeed(tp, op->speeds[baud_index]);
|
|
|
|
cfsetospeed(tp, op->speeds[baud_index]);
|
2011-04-26 14:28:59 -05:00
|
|
|
tcsetattr(STDIN_FILENO, TCSANOW, tp);
|
2006-12-06 17:25:32 -06:00
|
|
|
}
|
|
|
|
|
2011-04-26 14:28:59 -05:00
|
|
|
/* Get user name, establish parity, speed, erase, kill & eol. */
|
2011-05-09 08:52:34 -05:00
|
|
|
static char *get_logname(struct options *op, struct termios *tp, struct chardata *cp)
|
2006-12-06 17:25:32 -06:00
|
|
|
{
|
2011-04-14 06:43:11 -05:00
|
|
|
static char logname[BUFSIZ];
|
2011-04-26 14:28:59 -05:00
|
|
|
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 */
|
2011-04-14 06:43:11 -05:00
|
|
|
};
|
|
|
|
|
|
|
|
/* Initialize kill, erase, parity etc. (also after switching speeds). */
|
|
|
|
*cp = init_chardata;
|
|
|
|
|
2011-04-26 14:28:59 -05:00
|
|
|
/*
|
|
|
|
* Flush pending input (especially important after parsing or switching
|
|
|
|
* the baud rate).
|
|
|
|
*/
|
|
|
|
sleep(1);
|
|
|
|
tcflush(STDIN_FILENO, TCIFLUSH);
|
2011-04-14 06:43:11 -05:00
|
|
|
|
|
|
|
/* 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);
|
|
|
|
|
2011-04-26 14:28:59 -05:00
|
|
|
/*
|
|
|
|
* Read name, watch for break, parity, erase, kill,
|
|
|
|
* end-of-line.
|
|
|
|
*/
|
2011-04-14 06:43:11 -05:00
|
|
|
for (bp = logname, cp->eol = 0; cp->eol == 0; /* void */ ) {
|
|
|
|
/* Do not report trivial EINTR/EIO errors. */
|
|
|
|
if (read(STDIN_FILENO, &c, 1) < 1) {
|
|
|
|
if (errno == EINTR || errno == EIO)
|
|
|
|
exit(EXIT_SUCCESS);
|
2011-05-09 08:52:34 -05:00
|
|
|
log_err(_("%s: read: %m"), op->tty);
|
2011-04-14 06:43:11 -05:00
|
|
|
}
|
|
|
|
/* Do BREAK handling elsewhere. */
|
|
|
|
if ((c == 0) && op->numspeed > 1)
|
|
|
|
return EXIT_SUCCESS;
|
|
|
|
/* Do parity bit handling. */
|
2011-05-09 08:52:34 -05:00
|
|
|
if (op->flags & F_EIGHTBITS) {
|
2011-04-14 06:43:11 -05:00
|
|
|
ascval = c;
|
2011-04-26 14:28:59 -05:00
|
|
|
} else if (c != (ascval = (c & 0177))) {
|
|
|
|
/* Set "parity" bit on. */
|
|
|
|
for (bits = 1, mask = 1; mask & 0177;
|
|
|
|
mask <<= 1)
|
2011-04-14 06:43:11 -05:00
|
|
|
if (mask & ascval)
|
2011-04-26 14:28:59 -05:00
|
|
|
/* Count "1" bits. */
|
|
|
|
bits++;
|
2011-04-14 06:43:11 -05:00
|
|
|
cp->parity |= ((bits & 1) ? 1 : 2);
|
|
|
|
}
|
|
|
|
/* Do erase, kill and end-of-line processing. */
|
|
|
|
switch (ascval) {
|
|
|
|
case CR:
|
|
|
|
case NL:
|
2011-04-26 14:28:59 -05:00
|
|
|
/* Terminate logname. */
|
|
|
|
*bp = 0;
|
|
|
|
/* Set end-of-line char. */
|
|
|
|
cp->eol = ascval;
|
2011-04-14 06:43:11 -05:00
|
|
|
break;
|
|
|
|
case BS:
|
|
|
|
case DEL:
|
|
|
|
case '#':
|
2011-04-26 14:28:59 -05:00
|
|
|
/* Set erase character. */
|
|
|
|
cp->erase = ascval;
|
2011-04-14 06:43:11 -05:00
|
|
|
if (bp > logname) {
|
2011-05-09 08:52:35 -05:00
|
|
|
write_all(STDOUT_FILENO,
|
|
|
|
erase[cp->parity], 3);
|
2011-04-14 06:43:11 -05:00
|
|
|
bp--;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
case CTL('U'):
|
|
|
|
case '@':
|
2011-04-26 14:28:59 -05:00
|
|
|
/* Set kill character. */
|
|
|
|
cp->kill = ascval;
|
2011-04-14 06:43:11 -05:00
|
|
|
while (bp > logname) {
|
2011-05-09 08:52:35 -05:00
|
|
|
write_all(STDOUT_FILENO,
|
|
|
|
erase[cp->parity], 3);
|
2011-04-14 06:43:11 -05:00
|
|
|
bp--;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
case CTL('D'):
|
|
|
|
exit(EXIT_SUCCESS);
|
|
|
|
default:
|
|
|
|
if (!isascii(ascval) || !isprint(ascval)) {
|
2011-04-26 14:28:59 -05:00
|
|
|
/* Ignore garbage characters. */ ;
|
2011-05-09 08:52:34 -05:00
|
|
|
} else if ((size_t)(bp - logname) >= sizeof(logname) - 1) {
|
|
|
|
log_err(_("%s: input overrun"), op->tty);
|
2011-04-14 06:43:11 -05:00
|
|
|
} else {
|
2011-04-26 14:28:59 -05:00
|
|
|
/* Echo the character... */
|
2011-05-09 08:52:35 -05:00
|
|
|
write_all(STDOUT_FILENO, &c, 1);
|
2011-04-26 14:28:59 -05:00
|
|
|
/* ...and store it. */
|
|
|
|
*bp++ = ascval;
|
2011-04-14 06:43:11 -05:00
|
|
|
}
|
|
|
|
break;
|
|
|
|
}
|
2006-12-06 17:25:32 -06:00
|
|
|
}
|
|
|
|
}
|
2011-04-14 06:43:11 -05:00
|
|
|
/* Handle names with upper case and no lower case. */
|
2011-04-26 14:28:59 -05:00
|
|
|
if ((op->flags & F_LCUC) && (cp->capslock = caps_lock(logname)))
|
2011-04-14 06:43:11 -05:00
|
|
|
for (bp = logname; *bp; bp++)
|
|
|
|
if (isupper(*bp))
|
2011-04-26 14:28:59 -05:00
|
|
|
*bp = tolower(*bp);
|
2011-04-14 06:43:11 -05:00
|
|
|
return logname;
|
2006-12-06 17:25:32 -06:00
|
|
|
}
|
|
|
|
|
2011-04-26 14:28:59 -05:00
|
|
|
/* Set the final tty mode bits. */
|
2011-05-09 08:52:34 -05:00
|
|
|
static void termio_final(struct options *op, struct termios *tp, struct chardata *cp)
|
2006-12-06 17:25:32 -06:00
|
|
|
{
|
2011-04-14 06:43:11 -05:00
|
|
|
/* General terminal-independent stuff. */
|
2011-04-26 14:28:59 -05:00
|
|
|
|
|
|
|
/* 2-way flow control */
|
|
|
|
tp->c_iflag |= IXON | IXOFF;
|
|
|
|
tp->c_lflag |= ICANON | ISIG | ECHO | ECHOE | ECHOK | ECHOKE;
|
|
|
|
/* no longer| ECHOCTL | ECHOPRT */
|
2011-04-14 06:43:11 -05:00
|
|
|
tp->c_oflag |= OPOST;
|
|
|
|
/* tp->c_cflag = 0; */
|
2011-04-26 14:28:59 -05:00
|
|
|
tp->c_cc[VINTR] = DEF_INTR;
|
|
|
|
tp->c_cc[VQUIT] = DEF_QUIT;
|
|
|
|
tp->c_cc[VEOF] = DEF_EOF;
|
2011-04-14 06:43:11 -05:00
|
|
|
tp->c_cc[VEOL] = DEF_EOL;
|
2006-12-06 17:25:34 -06:00
|
|
|
#ifdef __linux__
|
2011-04-26 14:28:59 -05:00
|
|
|
tp->c_cc[VSWTC] = DEF_SWITCH;
|
2008-01-03 09:40:32 -06:00
|
|
|
#elif defined(VSWTCH)
|
2011-04-26 14:28:59 -05:00
|
|
|
tp->c_cc[VSWTCH] = DEF_SWITCH;
|
|
|
|
#endif /* __linux__ */
|
2006-12-06 17:25:32 -06:00
|
|
|
|
2011-04-14 06:43:11 -05:00
|
|
|
/* Account for special characters seen in input. */
|
|
|
|
if (cp->eol == CR) {
|
2011-04-26 14:28:59 -05:00
|
|
|
tp->c_iflag |= ICRNL;
|
|
|
|
tp->c_oflag |= ONLCR;
|
2011-04-14 06:43:11 -05:00
|
|
|
}
|
2011-04-26 14:28:59 -05:00
|
|
|
tp->c_cc[VERASE] = cp->erase;
|
|
|
|
tp->c_cc[VKILL] = cp->kill;
|
2011-04-14 06:43:11 -05:00
|
|
|
|
|
|
|
/* Account for the presence or absence of parity bits in input. */
|
|
|
|
switch (cp->parity) {
|
2011-04-26 14:28:59 -05:00
|
|
|
case 0:
|
|
|
|
/* space (always 0) parity */
|
|
|
|
break;
|
|
|
|
case 1:
|
|
|
|
/* odd parity */
|
|
|
|
tp->c_cflag |= PARODD;
|
|
|
|
/* do not break */
|
|
|
|
case 2:
|
|
|
|
/* even parity */
|
|
|
|
tp->c_cflag |= PARENB;
|
|
|
|
tp->c_iflag |= INPCK | ISTRIP;
|
|
|
|
/* do not break */
|
|
|
|
case (1 | 2):
|
|
|
|
/* no parity bit */
|
|
|
|
tp->c_cflag &= ~CSIZE;
|
|
|
|
tp->c_cflag |= CS7;
|
|
|
|
break;
|
2011-04-14 06:43:11 -05:00
|
|
|
}
|
|
|
|
/* Account for upper case without lower case. */
|
|
|
|
if (cp->capslock) {
|
2009-04-22 02:34:10 -05:00
|
|
|
#ifdef IUCLC
|
2011-04-14 06:43:11 -05:00
|
|
|
tp->c_iflag |= IUCLC;
|
2009-04-22 02:34:10 -05:00
|
|
|
#endif
|
2011-04-14 06:25:57 -05:00
|
|
|
#ifdef XCASE
|
2011-04-14 06:43:11 -05:00
|
|
|
tp->c_lflag |= XCASE;
|
2008-01-03 09:40:32 -06:00
|
|
|
#endif
|
2009-04-22 02:34:10 -05:00
|
|
|
#ifdef OLCUC
|
2011-04-14 06:43:11 -05:00
|
|
|
tp->c_oflag |= OLCUC;
|
2009-04-22 02:34:10 -05:00
|
|
|
#endif
|
2011-04-14 06:43:11 -05:00
|
|
|
}
|
2011-04-26 14:28:59 -05:00
|
|
|
/* Optionally enable hardware flow control. */
|
2006-12-06 17:25:32 -06:00
|
|
|
#ifdef CRTSCTS
|
2011-04-14 06:43:11 -05:00
|
|
|
if (op->flags & F_RTSCTS)
|
|
|
|
tp->c_cflag |= CRTSCTS;
|
2006-12-06 17:25:32 -06:00
|
|
|
#endif
|
|
|
|
|
2011-04-26 14:28:59 -05:00
|
|
|
/* Finally, make the new settings effective. */
|
2011-04-14 06:43:11 -05:00
|
|
|
if (tcsetattr(STDIN_FILENO, TCSANOW, tp) < 0)
|
2011-05-09 08:52:34 -05:00
|
|
|
log_err("%s: tcsetattr: TCSANOW: %m", op->tty);
|
2006-12-06 17:25:32 -06:00
|
|
|
}
|
|
|
|
|
2011-04-26 14:28:59 -05:00
|
|
|
/*
|
|
|
|
* String contains upper case without lower case.
|
|
|
|
* http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=52940
|
|
|
|
* http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=156242
|
|
|
|
*/
|
2011-05-09 08:52:34 -05:00
|
|
|
static int caps_lock(char *s)
|
2006-12-06 17:25:32 -06:00
|
|
|
{
|
2011-04-26 14:28:59 -05:00
|
|
|
int capslock;
|
2011-04-14 06:43:11 -05:00
|
|
|
|
|
|
|
for (capslock = 0; *s; s++) {
|
|
|
|
if (islower(*s))
|
|
|
|
return EXIT_SUCCESS;
|
|
|
|
if (capslock == 0)
|
|
|
|
capslock = isupper(*s);
|
|
|
|
}
|
|
|
|
return capslock;
|
2006-12-06 17:25:32 -06:00
|
|
|
}
|
|
|
|
|
2011-04-26 14:28:59 -05:00
|
|
|
/* Convert speed string to speed code; return 0 on failure. */
|
2011-05-09 08:52:34 -05:00
|
|
|
static speed_t bcode(char *s)
|
2006-12-06 17:25:32 -06:00
|
|
|
{
|
2011-04-14 06:43:11 -05:00
|
|
|
struct Speedtab *sp;
|
2011-04-26 14:28:59 -05:00
|
|
|
long speed = atol(s);
|
2006-12-06 17:25:32 -06:00
|
|
|
|
2011-04-14 06:43:11 -05:00
|
|
|
for (sp = speedtab; sp->speed; sp++)
|
|
|
|
if (sp->speed == speed)
|
|
|
|
return sp->code;
|
|
|
|
return 0;
|
2006-12-06 17:25:32 -06:00
|
|
|
}
|
|
|
|
|
2011-05-09 08:52:34 -05:00
|
|
|
static void __attribute__ ((__noreturn__)) usage(FILE * out)
|
2006-12-06 17:25:32 -06:00
|
|
|
{
|
2011-04-26 14:28:59 -05:00
|
|
|
fprintf(out, _("\nUsage:\n"
|
|
|
|
" %1$s [options] line baud_rate,... [termtype]\n"
|
|
|
|
" %1$s [options] baud_rate,... line [termtype]\n"),
|
2011-04-14 06:43:11 -05:00
|
|
|
program_invocation_short_name);
|
|
|
|
|
2011-04-26 14:28:59 -05:00
|
|
|
fprintf(out, _("\nOptions:\n"
|
|
|
|
" -8, --8bits assume 8-bit tty\n"
|
|
|
|
" -c, --noreset do not reset control mode\n"
|
|
|
|
" -f, --issue-file FILE display issue file\n"
|
|
|
|
" -h, --flow-control enable hardware flow control\n"
|
|
|
|
" -H, --host HOSTNAME specify login host\n"
|
|
|
|
" -i, --noissue do not display issue file\n"
|
|
|
|
" -I, --init-string STRING set init string\n"
|
|
|
|
" -l, --login-program FILE specify login program\n"
|
|
|
|
" -L, --local-line force local line\n"
|
|
|
|
" -m, --extract-baud extract baud rate during connect\n"
|
|
|
|
" -n, --skip-login do not prompt for login\n"
|
2011-05-09 08:52:36 -05:00
|
|
|
" -R, --hangup do virtually hangup on the tty\n"
|
2011-04-26 14:28:59 -05:00
|
|
|
" -s, --keep-baud try to keep baud rate after break\n"
|
|
|
|
" -t, --timeout NUMBER login process timeout\n"
|
|
|
|
" -U, --detect-case detect uppercase terminal\n"
|
|
|
|
" -w, --wait-cr wait carriage-return\n"
|
|
|
|
" --version output version information and exit\n"
|
|
|
|
" --help display this help and exit\n\n"));
|
2011-04-14 06:43:11 -05:00
|
|
|
|
|
|
|
exit(out == stderr ? EXIT_FAILURE : EXIT_SUCCESS);
|
2006-12-06 17:25:32 -06:00
|
|
|
}
|
|
|
|
|
2011-05-09 08:52:34 -05:00
|
|
|
/*
|
|
|
|
* Helper function reports errors to console or syslog.
|
|
|
|
* Will be used by log_err() and log_warn() therefore
|
|
|
|
* it takes a format as well as va_list.
|
|
|
|
*/
|
2006-12-06 17:25:32 -06:00
|
|
|
#define str2cpy(b,s1,s2) strcat(strcpy(b,s1),s2)
|
|
|
|
|
2011-05-09 08:52:34 -05:00
|
|
|
static void dolog(int priority, const char *fmt, va_list ap)
|
2011-04-26 14:28:59 -05:00
|
|
|
{
|
2006-12-06 17:25:32 -06:00
|
|
|
#ifndef USE_SYSLOG
|
2011-04-26 14:28:59 -05:00
|
|
|
int fd;
|
2006-12-06 17:25:32 -06:00
|
|
|
#endif
|
2011-04-26 14:28:59 -05:00
|
|
|
char buf[BUFSIZ];
|
|
|
|
char *bp;
|
2006-12-06 17:25:32 -06:00
|
|
|
|
2011-04-14 06:43:11 -05:00
|
|
|
/*
|
|
|
|
* 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.
|
|
|
|
*/
|
2006-12-06 17:25:32 -06:00
|
|
|
#ifdef USE_SYSLOG
|
2011-04-14 06:43:11 -05:00
|
|
|
buf[0] = '\0';
|
|
|
|
bp = buf;
|
2006-12-06 17:25:32 -06:00
|
|
|
#else
|
2011-04-26 14:28:59 -05:00
|
|
|
str2cpy(buf, program_invocation_short_name, ": ");
|
2011-04-14 06:43:11 -05:00
|
|
|
bp = buf + strlen(buf);
|
2011-04-26 14:28:59 -05:00
|
|
|
#endif /* USE_SYSLOG */
|
2011-05-09 08:52:34 -05:00
|
|
|
vsnprintf (bp, sizeof(buf)-strlen(buf), fmt, ap);
|
2006-12-06 17:25:32 -06:00
|
|
|
|
2011-04-14 06:43:11 -05:00
|
|
|
/*
|
|
|
|
* Write the diagnostic directly to /dev/console if we do not use the
|
|
|
|
* syslog(3) facility.
|
|
|
|
*/
|
2006-12-06 17:25:32 -06:00
|
|
|
#ifdef USE_SYSLOG
|
2011-04-26 14:28:59 -05:00
|
|
|
openlog(program_invocation_short_name, LOG_PID, LOG_AUTHPRIV);
|
2011-05-09 08:52:34 -05:00
|
|
|
syslog(priority, "%s", buf);
|
2011-04-14 06:43:11 -05:00
|
|
|
closelog();
|
2006-12-06 17:25:32 -06:00
|
|
|
#else
|
2011-04-14 06:43:11 -05:00
|
|
|
/* Terminate with CR-LF since the console mode is unknown. */
|
2011-04-26 14:28:59 -05:00
|
|
|
strcat(bp, "\r\n");
|
2011-04-14 06:43:11 -05:00
|
|
|
if ((fd = open("/dev/console", 1)) >= 0) {
|
2011-05-09 08:52:35 -05:00
|
|
|
write_all(fd, buf, strlen(buf));
|
2011-04-26 14:28:59 -05:00
|
|
|
close(fd);
|
2011-04-14 06:43:11 -05:00
|
|
|
}
|
2011-04-26 14:28:59 -05:00
|
|
|
#endif /* USE_SYSLOG */
|
2011-05-09 08:52:34 -05:00
|
|
|
}
|
|
|
|
|
|
|
|
static void log_err(const char *fmt, ...)
|
|
|
|
{
|
|
|
|
va_list ap;
|
|
|
|
|
|
|
|
va_start(ap, fmt);
|
|
|
|
dolog(LOG_ERR, fmt, ap);
|
|
|
|
va_end(ap);
|
|
|
|
|
2011-04-26 14:28:59 -05:00
|
|
|
/* Be kind to init(8). */
|
|
|
|
sleep(10);
|
2011-04-14 06:43:11 -05:00
|
|
|
exit(EXIT_FAILURE);
|
2006-12-06 17:25:32 -06:00
|
|
|
}
|
2011-05-09 08:52:34 -05:00
|
|
|
|
|
|
|
static void log_warn(const char *fmt, ...)
|
|
|
|
{
|
|
|
|
va_list ap;
|
|
|
|
|
|
|
|
va_start(ap, fmt);
|
|
|
|
dolog(LOG_WARNING, fmt, ap);
|
|
|
|
va_end(ap);
|
|
|
|
}
|
2011-05-09 08:52:35 -05:00
|
|
|
|
|
|
|
static void output_special_char(unsigned char c, struct options *op,
|
|
|
|
struct termios *tp)
|
|
|
|
{
|
|
|
|
struct utsname uts;
|
|
|
|
(void) uname(&uts);
|
2011-05-09 08:52:36 -05:00
|
|
|
|
2011-05-09 08:52:35 -05:00
|
|
|
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') /* ISO 8601 */
|
|
|
|
(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':
|
|
|
|
{
|
|
|
|
const speed_t speed = cfgetispeed(tp);
|
|
|
|
int i;
|
|
|
|
|
|
|
|
for (i = 0; speedtab[i].speed; i++) {
|
|
|
|
if (speedtab[i].code == speed) {
|
|
|
|
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);
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static void init_special_char(char* arg, struct options *op)
|
|
|
|
{
|
|
|
|
char ch, *p, *q;
|
|
|
|
int i;
|
|
|
|
|
|
|
|
op->initstring = xmalloc(strlen(arg) + 1);
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Copy optarg into op->initstring decoding \ddd octal
|
|
|
|
* codes into chars.
|
|
|
|
*/
|
|
|
|
q = op->initstring;
|
|
|
|
p = arg;
|
|
|
|
while (*p) {
|
|
|
|
/* The \\ is converted to \ */
|
|
|
|
if (*p == '\\') {
|
|
|
|
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';
|
|
|
|
}
|