Index: head/libexec/getty/gettytab.5 =================================================================== --- head/libexec/getty/gettytab.5 (revision 323251) +++ head/libexec/getty/gettytab.5 (revision 323252) @@ -1,528 +1,530 @@ .\" Copyright (c) 1983, 1991, 1993 .\" The Regents of the University of California. All rights reserved. .\" .\" Redistribution and use in source and binary forms, with or without .\" modification, are permitted provided that the following conditions .\" are met: .\" 1. Redistributions of source code must retain the above copyright .\" notice, this list of conditions and the following disclaimer. .\" 2. Redistributions in binary form must reproduce the above copyright .\" notice, this list of conditions and the following disclaimer in the .\" documentation and/or other materials provided with the distribution. .\" 3. Neither the name of the University nor the names of its contributors .\" may be used to endorse or promote products derived from this software .\" without specific prior written permission. .\" .\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND .\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE .\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE .\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE .\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL .\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS .\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) .\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT .\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF .\" SUCH DAMAGE. .\" .\" from: @(#)gettytab.5 8.4 (Berkeley) 4/19/94 .\" $FreeBSD$ .\" " -.Dd February 2, 2017 +.Dd August 23, 2017 .Dt GETTYTAB 5 .Os .Sh NAME .Nm gettytab .Nd terminal configuration data base .Sh SYNOPSIS .Nm .Sh DESCRIPTION The .Nm file is a simplified version of the .Xr termcap 5 data base used to describe terminal lines. The initial terminal login process .Xr getty 8 accesses the .Nm file each time it starts, allowing simpler reconfiguration of terminal characteristics. Each entry in the data base is used to describe one class of terminals. .Pp There is a default terminal class, .Va default , that is used to set global defaults for all other classes. (That is, the .Va default entry is read, then the entry for the class required is used to override particular settings.) .Sh CAPABILITIES Refer to .Xr termcap 5 for a description of the file layout. The .Va default column below lists defaults obtained if there is no entry in the table obtained, nor one in the special .Va default table. .Bl -column Name Type /usr/bin/login .It Sy "Name Type Default Description" .It "ac str unused expect-send chat script for modem answer" .It "al str unused user to auto-login instead of prompting" .It "ap bool false terminal uses any parity" .It "bk str 0377 alternate end of line character (input break)" .It "c0 num unused tty control flags to write messages" .It "c1 num unused tty control flags to read login name" .It "c2 num unused tty control flags to leave terminal as" .It "ce bool false use crt erase algorithm" .It "ck bool false use crt kill algorithm" .It "cl str" Ta Dv NULL .Ta No "screen clear sequence" .It "co bool false console - add" .Ql \en after login prompt .It "ct num 10 chat timeout for" .Va \&ac and .Va \&ic scripts .It "dc num 0 chat debug bitmask" .It "de num 0 delay secs and flush input before writing first prompt" .It "df str %+ the" Xr strftime 3 "format used for \&%d in the banner message" .It "ds str" Ta So Li ^Y .Sc Ta No "delayed suspend character" .It "dx bool false set" .Dv DECCTLQ .It "ec bool false leave echo" .Em OFF .It "ep bool false terminal uses even parity" .It "er str" Ta So Li ^? .Sc Ta No "erase character" .It "et str" Ta So Li ^D .Sc Ta No "end of text" .Pq Dv EOF character .It "ev str" Ta Dv NULL .Ta No "initial environment" .It "f0 num unused tty mode flags to write messages" .It "f1 num unused tty mode flags to read login name" .It "f2 num unused tty mode flags to leave terminal as" .It "fl str" Ta So Li ^O .Sc Ta No "output flush character" .It "hc bool false do" .Em NOT hangup line on last close .It "he str" Ta Dv NULL .Ta No "hostname editing regular expression" .It "hn str hostname hostname" .It "ht bool false terminal has real tabs" .It "hw bool false do cts/rts hardware flow control" .It "i0 num unused tty input flags to write messages" .It "i1 num unused tty input flags to read login name" .It "i2 num unused tty input flags to leave terminal as" .It "ic str unused expect-send chat script for modem initialization" .It "if str unused display named file before prompt, like /etc/issue" .It "ig bool false ignore garbage characters in login name" .It "im str" Ta Dv NULL .Ta No "initial (banner) message" +.It "iM str" Ta Dv NULL +.Ta No "execute named file to generate initial (banner) message" .It "in str" Ta So Li ^C .Sc Ta No "interrupt character" .It "is num unused input speed" .It "kl str" Ta So Li ^U .Sc Ta No "kill character" .It "l0 num unused tty local flags to write messages" .It "l1 num unused tty local flags to read login name" .It "l2 num unused tty local flags to leave terminal as" .It "lm str login: login prompt" .It "ln str" Ta So Li ^V .Sc Ta No "``literal next'' character" .It "lo str" Ta Pa /usr/bin/login .Ta No "program to exec when name obtained" .It "mb bool false do flow control based on carrier" .It "nc bool false terminal does not supply carrier (set clocal)" .It "nl bool false terminal has (or might have) a newline character" -.It "np bool false terminal uses no parity (i.e. 8-bit characters)" +.It "np bool false terminal uses no parity (i.e., 8-bit characters)" .It "nx str default next table (for auto speed selection)" .It "o0 num unused tty output flags to write messages" .It "o1 num unused tty output flags to read login name" .It "o2 num unused tty output flags to leave terminal as" .It "op bool false terminal uses odd parity" .It "os num unused output speed" .It "pc str" Ta So Li \e0 .Sc Ta No "pad character" .It "pe bool false use printer (hard copy) erase algorithm" .It "pf num 0 delay" between first prompt and following flush (seconds) .It "pl bool false start PPP login program unconditionally if" .Va \&pp is specified .It "pp str unused PPP login program" .It "ps bool false line connected to a" .Tn MICOM port selector .It "qu str" Ta So Li \&^\e .Sc Ta No "quit character" .It "rp str" Ta So Li ^R .Sc Ta No "line retype character" .It "rt num unused ring timeout when using" .Va \&ac .It "rw bool false do" .Em NOT use raw for input, use cbreak .It "sp num unused line speed (input and output)" .It "su str" Ta So Li ^Z .Sc Ta No "suspend character" .It "tc str none table continuation" .It "to num 0 timeout (seconds)" .It "tt str" Ta Dv NULL .Ta No "terminal type (for environment)" .It "ub bool false do unbuffered output (of prompts etc)" .It "we str" Ta So Li ^W .Sc Ta No "word erase character" .It "xc bool false do" .Em NOT echo control chars as .Ql ^X .It "xf str" Ta So Li ^S Sc Ta Dv XOFF (stop output) character .It "xn str" Ta So Li ^Q Sc Ta Dv XON (start output) character .It "Lo str C the locale name used for \&%d in the banner message" .El .Pp The following capabilities are no longer supported by .Xr getty 8 : .Bl -column Name Type /usr/bin/login .It "bd num 0 backspace delay" .It "cb bool false use crt backspace mode" .It "cd num 0 carriage-return delay" .It "fd num 0 form-feed (vertical motion) delay" .It "lc bool false terminal has lower case" .It "nd num 0 newline (line-feed) delay" .It "uc bool false terminal is known upper case only" .El .Pp If no line speed is specified, speed will not be altered from that which prevails when getty is entered. Specifying an input or output speed will override line speed for stated direction only. .Pp Terminal modes to be used for the output of the message, for input of the login name, and to leave the terminal set as upon completion, are derived from the boolean flags specified. If the derivation should prove inadequate, any (or all) of these three may be overridden with one of the .Va \&c0 , .Va \&c1 , .Va \&c2 , .Va \&i0 , .Va \&i1 , .Va \&i2 , .Va \&l0 , .Va \&l1 , .Va \&l2 , .Va \&o0 , .Va \&o1 , or .Va \&o2 numeric specifications, which can be used to specify (usually in octal, with a leading '0') the exact values of the flags. These flags correspond to the termios .Va c_cflag , .Va c_iflag , .Va c_lflag , and .Va c_oflag fields, respectively. Each these sets must be completely specified to be effective. The .Va \&f0 , .Va \&f1 , and .Va \&f2 are excepted for backwards compatibility with a previous incarnation of the TTY sub-system. In these flags the bottom 16 bits of the (32 bits) value contain the sgttyb .Va sg_flags field, while the top 16 bits represent the local mode word. .Pp Should .Xr getty 8 receive a null character (presumed to indicate a line break) it will restart using the table indicated by the .Va \&nx entry. If there is none, it will re-use its original table. .Pp Delays are specified in milliseconds, the nearest possible delay available in the tty driver will be used. Should greater certainty be desired, delays with values 0, 1, 2, and 3 are interpreted as choosing that particular delay algorithm from the driver. .Pp The .Va \&cl screen clear string may be preceded by a (decimal) number of milliseconds of delay required (a la termcap). This delay is simulated by repeated use of the pad character .Va \&pc . .Pp The initial message, login message, and initial file; .Va \&im , .Va \&lm and .Va \&if may include any of the following character sequences, which expand to information about the environment in which .Xr getty 8 is running. .Bl -tag -offset indent -width \&%xxxxxxxxxxxxxx .It \&%d The current date and time formatted according to the .Va \&Lo and .Va \&df strings. .It \&%h The hostname of the machine, which is normally obtained from the system using .Xr gethostname 3 , but may also be overridden by the .Va \&hn table entry. In either case it may be edited with the .Va \&he POSIX .Dq extended regular expression, which is matched against the hostname. If there are no parenthesized subexpressions in the pattern, the entire matched string is used as the final hostname; otherwise, the first matched subexpression is used instead. If the pattern does not match, the original hostname is not modified. .It \&%t The tty name. .It "\&%m, \&%r, \&%s, \&%v" The type of machine, release of the operating system, name of the operating system, and version of the kernel, respectively, as returned by .Xr uname 3 . .It \&%% A .Dq % character. .El .Pp When getty execs the login process, given in the .Va \&lo string (usually .Dq Pa /usr/bin/login ) , it will have set the environment to include the terminal type, as indicated by the .Va \&tt string (if it exists). The .Va \&ev string, can be used to enter additional data into the environment. It is a list of comma separated strings, each of which will presumably be of the form .Li name=value . .Pp If a non-zero timeout is specified, with .Va \&to , then getty will exit within the indicated number of seconds, either having received a login name and passed control to .Xr login 1 , or having received an alarm signal, and exited. This may be useful to hangup dial in lines. .Pp Output from .Xr getty 8 is even parity unless .Va \&op or .Va \&np is specified. The .Va \&op string may be specified with .Va \&ap to allow any parity on input, but generate odd parity output. Note: this only applies while getty is being run, terminal driver limitations prevent a more complete implementation. The .Xr getty 8 utility does not check parity of input characters in .Dv RAW mode. .Pp If a .Va \&pp string is specified and a PPP link bring-up sequence is recognized, getty will invoke the program referenced by the .Va \&pp option. This can be used to handle incoming PPP calls. If the .Va \&pl option is true as well, .Xr getty 8 will skip the user name prompt and the PPP detection phase, and will invoke the program specified by .Va \&pp instantly. .Pp .Nm Getty provides some basic intelligent modem handling by providing a chat script feature available via two capabilities: .Pp .Bl -tag -offset indent -width \&xxxxxxxx -compact .It ic Chat script to initialize modem. .It ac Chat script to answer a call. .El .Pp A chat script is a set of expect/send string pairs. When a chat string starts, .Nm getty will wait for the first string, and if it finds it, will send the second, and so on. Strings specified are separated by one or more tabs or spaces. Strings may contain standard ASCII characters and special 'escapes', which consist of a backslash character followed by one or more characters which are interpreted as follows: .Pp .Bl -tag -offset indent -width \&xxxxxxxx -compact .It \ea bell character. .It \eb backspace. .It \en newline. .It \ee escape. .It \ef formfeed. .It \ep half-second pause. .It \er carriage return. .It \eS , \es space character. .It \et tab. .It \exNN hexadecimal byte value. .It \e0NNN octal byte value. .El .Pp Note that the .Ql \ep sequence is only valid for send strings and causes a half-second pause between sending the previous and next characters. Hexadecimal values are, at most, 2 hex digits long, and octal values are a maximum of 3 octal digits. .Pp The .Va \&ic chat sequence is used to initialize a modem or similar device. A typical example of an init chat script for a modem with a hayes compatible command set might look like this: .Pp .Dl :ic="" ATE0Q0V1\er OK\er ATS0=0\er OK\er: .Pp This script waits for nothing (which always succeeds), sends a sequence to ensure that the modem is in the correct mode (suppress command echo, send responses in verbose mode), and then disables auto-answer. It waits for an "OK" response before it terminates. The init sequence is used to check modem responses to ensure that the modem is functioning correctly. If the init script fails to complete, .Nm getty considers this to be fatal, and results in an error logged via .Xr syslogd 8 , and exiting. .Pp Similarly, an answer chat script is used to manually answer the phone in response to (usually) a "RING". When run with an answer script, .Nm getty opens the port in non-blocking mode, clears any extraneous input and waits for data on the port. As soon as any data is available, the answer chat script is started and scanned for a string, and responds according to the answer chat script. With a hayes compatible modem, this would normally look something like: .Pp .Dl :ac=RING\er ATA\er CONNECT: .Pp This causes the modem to answer the call via the "ATA" command, then scans input for a "CONNECT" string. If this is received before a .Va \&ct timeout, then a normal login sequence commences. .Pp The .Va \&ct capability specifies a timeout for all send and expect strings. This timeout is set individually for each expect wait and send string and must be at least as long as the time it takes for a connection to be established between a remote and local modem (usually around 10 seconds). .Pp In most situations, you will want to flush any additional input after the connection has been detected, and the .Va \&de capability may be used to do that, as well as delay for a short time after the connection has been established during which all of the connection data has been sent by the modem. .Sh SEE ALSO .Xr login 1 , .Xr gethostname 3 , .Xr uname 3 , .Xr termcap 5 , .Xr getty 8 , .Xr telnetd 8 .Sh HISTORY The .Nm file format appeared in .Bx 4.2 . .Sh BUGS The special characters (erase, kill, etc.) are reset to system defaults by .Xr login 1 . In .Em all cases, '#' or '^H' typed in a login name will be treated as an erase character, and '@' will be treated as a kill character. .Pp The delay stuff is a real crock. Apart form its general lack of flexibility, some of the delay algorithms are not implemented. The terminal driver should support sane delay settings. .Pp The .Xr termcap 5 format is horrid, something more rational should have been chosen. Index: head/libexec/getty/gettytab.h =================================================================== --- head/libexec/getty/gettytab.h (revision 323251) +++ head/libexec/getty/gettytab.h (revision 323252) @@ -1,173 +1,174 @@ /* * Copyright (c) 1983, 1993, 1994 * The Regents of the University of California. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * from: @(#)gettytab.h 8.2 (Berkeley) 3/30/94 * $FreeBSD$ */ /* * Getty description definitions. */ struct gettystrs { const char *field; /* name to lookup in gettytab */ char *defalt; /* value we find by looking in defaults */ char *value; /* value that we find there */ }; struct gettynums { const char *field; /* name to lookup */ long defalt; /* number we find in defaults */ long value; /* number we find there */ int set; /* we actually got this one */ }; struct gettyflags { const char *field; /* name to lookup */ char invrt; /* name existing in gettytab --> false */ char defalt; /* true/false in defaults */ char value; /* true/false flag */ char set; /* we found it */ }; /* * String values. */ #define NX gettystrs[0].value #define CL gettystrs[1].value #define IM gettystrs[2].value #define LM gettystrs[3].value #define ER gettystrs[4].value #define KL gettystrs[5].value #define ET gettystrs[6].value #define PC gettystrs[7].value #define TT gettystrs[8].value #define EV gettystrs[9].value #define LO gettystrs[10].value #define HN gettystrs[11].value #define HE gettystrs[12].value #define IN gettystrs[13].value #define QU gettystrs[14].value #define XN gettystrs[15].value #define XF gettystrs[16].value #define BK gettystrs[17].value #define SU gettystrs[18].value #define DS gettystrs[19].value #define RP gettystrs[20].value #define FL gettystrs[21].value #define WE gettystrs[22].value #define LN gettystrs[23].value #define Lo gettystrs[24].value #define PP gettystrs[25].value #define IF gettystrs[26].value #define IC gettystrs[27].value #define AC gettystrs[28].value #define AL gettystrs[29].value #define DF gettystrs[30].value +#define IMP gettystrs[31].value /* * Numeric definitions. */ #define IS gettynums[0].value #define OS gettynums[1].value #define SP gettynums[2].value #define ND gettynums[3].value #define CD gettynums[4].value #define TD gettynums[5].value #define FD gettynums[6].value #define BD gettynums[7].value #define TO gettynums[8].value #define F0 gettynums[9].value #define F0set gettynums[9].set #define F1 gettynums[10].value #define F1set gettynums[10].set #define F2 gettynums[11].value #define F2set gettynums[11].set #define PF gettynums[12].value #define C0 gettynums[13].value #define C0set gettynums[13].set #define C1 gettynums[14].value #define C1set gettynums[14].set #define C2 gettynums[15].value #define C2set gettynums[15].set #define I0 gettynums[16].value #define I0set gettynums[16].set #define I1 gettynums[17].value #define I1set gettynums[17].set #define I2 gettynums[18].value #define I2set gettynums[18].set #define L0 gettynums[19].value #define L0set gettynums[19].set #define L1 gettynums[20].value #define L1set gettynums[20].set #define L2 gettynums[21].value #define L2set gettynums[21].set #define O0 gettynums[22].value #define O0set gettynums[22].set #define O1 gettynums[23].value #define O1set gettynums[23].set #define O2 gettynums[24].value #define O2set gettynums[24].set #define DE gettynums[25].value #define RTset gettynums[26].set #define RT gettynums[26].value #define CT gettynums[27].value #define DC gettynums[28].value /* * Boolean values. */ #define HT gettyflags[0].value #define NL gettyflags[1].value #define EP gettyflags[2].value #define EPset gettyflags[2].set #define OP gettyflags[3].value #define OPset gettyflags[3].set #define AP gettyflags[4].value #define APset gettyflags[4].set #define EC gettyflags[5].value #define CO gettyflags[6].value #define CB gettyflags[7].value #define CK gettyflags[8].value #define CE gettyflags[9].value #define PE gettyflags[10].value #define RW gettyflags[11].value #define XC gettyflags[12].value #define LC gettyflags[13].value #define UC gettyflags[14].value #define IG gettyflags[15].value #define PS gettyflags[16].value #define HC gettyflags[17].value #define UB gettyflags[18].value #define AB gettyflags[19].value #define DX gettyflags[20].value #define NP gettyflags[21].value #define NPset gettyflags[21].set #define MB gettyflags[22].value #define HW gettyflags[23].value #define NC gettyflags[24].value #define PL gettyflags[25].value Index: head/libexec/getty/init.c =================================================================== --- head/libexec/getty/init.c (revision 323251) +++ head/libexec/getty/init.c (revision 323252) @@ -1,150 +1,151 @@ /* * Copyright (c) 1983, 1993 * The Regents of the University of California. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #ifndef lint #if 0 static char sccsid[] = "@(#)from: init.c 8.1 (Berkeley) 6/4/93"; #endif static const char rcsid[] = "$FreeBSD$"; #endif /* not lint */ /* * Getty table initializations. * * Melbourne getty. */ #include #include "gettytab.h" #include "extern.h" #include "pathnames.h" static char loginmsg[] = "login: "; static char nullstr[] = ""; static char loginprg[] = _PATH_LOGIN; static char datefmt[] = "%+"; struct gettystrs gettystrs[] = { { "nx" }, /* next table */ { "cl" }, /* screen clear characters */ { "im" }, /* initial message */ { "lm", loginmsg }, /* login message */ { "er", &omode.c_cc[VERASE] }, /* erase character */ { "kl", &omode.c_cc[VKILL] }, /* kill character */ { "et", &omode.c_cc[VEOF] }, /* eof chatacter (eot) */ { "pc", nullstr }, /* pad character */ { "tt" }, /* terminal type */ { "ev" }, /* environment */ { "lo", loginprg }, /* login program */ { "hn", hostname }, /* host name */ { "he" }, /* host name edit */ { "in", &omode.c_cc[VINTR] }, /* interrupt char */ { "qu", &omode.c_cc[VQUIT] }, /* quit char */ { "xn", &omode.c_cc[VSTART] }, /* XON (start) char */ { "xf", &omode.c_cc[VSTOP] }, /* XOFF (stop) char */ { "bk", &omode.c_cc[VEOL] }, /* brk char (alt \n) */ { "su", &omode.c_cc[VSUSP] }, /* suspend char */ { "ds", &omode.c_cc[VDSUSP] }, /* delayed suspend */ { "rp", &omode.c_cc[VREPRINT] },/* reprint char */ { "fl", &omode.c_cc[VDISCARD] },/* flush output */ { "we", &omode.c_cc[VWERASE] }, /* word erase */ { "ln", &omode.c_cc[VLNEXT] }, /* literal next */ { "Lo" }, /* locale for strftime() */ { "pp" }, /* ppp login program */ { "if" }, /* sysv-like 'issue' filename */ { "ic" }, /* modem init-chat */ { "ac" }, /* modem answer-chat */ { "al" }, /* user to auto-login */ { "df", datefmt}, /* format for strftime() */ + { "iM" }, /* initial message program */ { 0 } }; struct gettynums gettynums[] = { { "is" }, /* input speed */ { "os" }, /* output speed */ { "sp" }, /* both speeds */ { "nd" }, /* newline delay */ { "cd" }, /* carriage-return delay */ { "td" }, /* tab delay */ { "fd" }, /* form-feed delay */ { "bd" }, /* backspace delay */ { "to" }, /* timeout */ { "f0" }, /* output flags */ { "f1" }, /* input flags */ { "f2" }, /* user mode flags */ { "pf" }, /* delay before flush at 1st prompt */ { "c0" }, /* output c_flags */ { "c1" }, /* input c_flags */ { "c2" }, /* user mode c_flags */ { "i0" }, /* output i_flags */ { "i1" }, /* input i_flags */ { "i2" }, /* user mode i_flags */ { "l0" }, /* output l_flags */ { "l1" }, /* input l_flags */ { "l2" }, /* user mode l_flags */ { "o0" }, /* output o_flags */ { "o1" }, /* input o_flags */ { "o2" }, /* user mode o_flags */ { "de" }, /* delay before sending 1st prompt */ { "rt" }, /* reset timeout */ { "ct" }, /* chat script timeout */ { "dc" }, /* debug chat script value */ { 0 } }; struct gettyflags gettyflags[] = { { "ht", 0 }, /* has tabs */ { "nl", 1 }, /* has newline char */ { "ep", 0 }, /* even parity */ { "op", 0 }, /* odd parity */ { "ap", 0 }, /* any parity */ { "ec", 1 }, /* no echo */ { "co", 0 }, /* console special */ { "cb", 0 }, /* crt backspace */ { "ck", 0 }, /* crt kill */ { "ce", 0 }, /* crt erase */ { "pe", 0 }, /* printer erase */ { "rw", 1 }, /* don't use raw */ { "xc", 1 }, /* don't ^X ctl chars */ { "lc", 0 }, /* terminal las lower case */ { "uc", 0 }, /* terminal has no lower case */ { "ig", 0 }, /* ignore garbage */ { "ps", 0 }, /* do port selector speed select */ { "hc", 1 }, /* don't set hangup on close */ { "ub", 0 }, /* unbuffered output */ { "ab", 0 }, /* auto-baud detect with '\r' */ { "dx", 0 }, /* set decctlq */ { "np", 0 }, /* no parity at all (8bit chars) */ { "mb", 0 }, /* do MDMBUF flow control */ { "hw", 0 }, /* do CTSRTS flow control */ { "nc", 0 }, /* set clocal (no carrier) */ { "pl", 0 }, /* use PPP instead of login(1) */ { 0 } }; Index: head/libexec/getty/main.c =================================================================== --- head/libexec/getty/main.c (revision 323251) +++ head/libexec/getty/main.c (revision 323252) @@ -1,814 +1,816 @@ /*- * Copyright (c) 1980, 1993 * The Regents of the University of California. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #ifndef lint static const char copyright[] = "@(#) Copyright (c) 1980, 1993\n\ The Regents of the University of California. All rights reserved.\n"; #endif /* not lint */ #ifndef lint #if 0 static char sccsid[] = "@(#)from: main.c 8.1 (Berkeley) 6/20/93"; #endif #endif /* not lint */ #include __FBSDID("$FreeBSD$"); #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "gettytab.h" #include "extern.h" #include "pathnames.h" /* * Set the amount of running time that getty should accumulate * before deciding that something is wrong and exit. */ #define GETTY_TIMEOUT 60 /* seconds */ #undef CTRL #define CTRL(x) (x&037) /* defines for auto detection of incoming PPP calls (->PAP/CHAP) */ #define PPP_FRAME 0x7e /* PPP Framing character */ #define PPP_STATION 0xff /* "All Station" character */ #define PPP_ESCAPE 0x7d /* Escape Character */ #define PPP_CONTROL 0x03 /* PPP Control Field */ #define PPP_CONTROL_ESCAPED 0x23 /* PPP Control Field, escaped */ #define PPP_LCP_HI 0xc0 /* LCP protocol - high byte */ #define PPP_LCP_LOW 0x21 /* LCP protocol - low byte */ /* original mode; flags've been reset using values from */ struct termios omode; /* current mode */ struct termios tmode; int crmod, digit, lower, upper; char hostname[MAXHOSTNAMELEN]; char name[MAXLOGNAME*3]; char dev[] = _PATH_DEV; char ttyn[32]; #define OBUFSIZ 128 #define TABBUFSIZ 512 char defent[TABBUFSIZ]; char tabent[TABBUFSIZ]; const char *tname; char *env[128]; char partab[] = { 0001,0201,0201,0001,0201,0001,0001,0201, 0202,0004,0003,0205,0005,0206,0201,0001, 0201,0001,0001,0201,0001,0201,0201,0001, 0001,0201,0201,0001,0201,0001,0001,0201, 0200,0000,0000,0200,0000,0200,0200,0000, 0000,0200,0200,0000,0200,0000,0000,0200, 0000,0200,0200,0000,0200,0000,0000,0200, 0200,0000,0000,0200,0000,0200,0200,0000, 0200,0000,0000,0200,0000,0200,0200,0000, 0000,0200,0200,0000,0200,0000,0000,0200, 0000,0200,0200,0000,0200,0000,0000,0200, 0200,0000,0000,0200,0000,0200,0200,0000, 0000,0200,0200,0000,0200,0000,0000,0200, 0200,0000,0000,0200,0000,0200,0200,0000, 0200,0000,0000,0200,0000,0200,0200,0000, 0000,0200,0200,0000,0200,0000,0000,0201 }; #define ERASE tmode.c_cc[VERASE] #define KILL tmode.c_cc[VKILL] #define EOT tmode.c_cc[VEOF] #define puts Gputs static void defttymode(void); static void dingdong(int); static void dogettytab(void); static int getname(void); static void interrupt(int); static void oflush(void); static void prompt(void); static void putchr(int); static void putf(const char *); static void putpad(const char *); static void puts(const char *); static void timeoverrun(int); static char *getline(int); static void setttymode(int); static int opentty(const char *, int); jmp_buf timeout; static void dingdong(int signo __unused) { alarm(0); longjmp(timeout, 1); } jmp_buf intrupt; static void interrupt(int signo __unused) { longjmp(intrupt, 1); } /* * Action to take when getty is running too long. */ static void timeoverrun(int signo __unused) { syslog(LOG_ERR, "getty exiting due to excessive running time"); exit(1); } int main(int argc, char *argv[]) { extern char **environ; int first_sleep = 1, first_time = 1; struct rlimit limit; int rval; signal(SIGINT, SIG_IGN); signal(SIGQUIT, SIG_IGN); openlog("getty", LOG_CONS|LOG_PID, LOG_AUTH); gethostname(hostname, sizeof(hostname) - 1); hostname[sizeof(hostname) - 1] = '\0'; if (hostname[0] == '\0') strcpy(hostname, "Amnesiac"); /* * Limit running time to deal with broken or dead lines. */ (void)signal(SIGXCPU, timeoverrun); limit.rlim_max = RLIM_INFINITY; limit.rlim_cur = GETTY_TIMEOUT; (void)setrlimit(RLIMIT_CPU, &limit); gettable("default", defent); gendefaults(); tname = "default"; if (argc > 1) tname = argv[1]; /* * The following is a work around for vhangup interactions * which cause great problems getting window systems started. * If the tty line is "-", we do the old style getty presuming * that the file descriptors are already set up for us. * J. Gettys - MIT Project Athena. */ if (argc <= 2 || strcmp(argv[2], "-") == 0) strcpy(ttyn, ttyname(STDIN_FILENO)); else { strcpy(ttyn, dev); strncat(ttyn, argv[2], sizeof(ttyn)-sizeof(dev)); if (strcmp(argv[0], "+") != 0) { chown(ttyn, 0, 0); chmod(ttyn, 0600); revoke(ttyn); /* * Do the first scan through gettytab. * Terminal mode parameters will be wrong until * defttymode() called, but they're irrelevant for * the initial setup of the terminal device. */ dogettytab(); /* * Init or answer modem sequence has been specified. */ if (IC || AC) { if (!opentty(ttyn, O_RDWR|O_NONBLOCK)) exit(1); defttymode(); setttymode(1); } if (IC) { if (getty_chat(IC, CT, DC) > 0) { syslog(LOG_ERR, "modem init problem on %s", ttyn); (void)tcsetattr(STDIN_FILENO, TCSANOW, &tmode); exit(1); } } if (AC) { int i, rfds; struct timeval to; rfds = 1 << 0; /* FD_SET */ to.tv_sec = RT; to.tv_usec = 0; i = select(32, (fd_set*)&rfds, (fd_set*)NULL, (fd_set*)NULL, RT ? &to : NULL); if (i < 0) { syslog(LOG_ERR, "select %s: %m", ttyn); } else if (i == 0) { syslog(LOG_NOTICE, "recycle tty %s", ttyn); (void)tcsetattr(STDIN_FILENO, TCSANOW, &tmode); exit(0); /* recycle for init */ } i = getty_chat(AC, CT, DC); if (i > 0) { syslog(LOG_ERR, "modem answer problem on %s", ttyn); (void)tcsetattr(STDIN_FILENO, TCSANOW, &tmode); exit(1); } } else { /* maybe blocking open */ if (!opentty(ttyn, O_RDWR | (NC ? O_NONBLOCK : 0 ))) exit(1); } } } defttymode(); for (;;) { /* * if a delay was specified then sleep for that * number of seconds before writing the initial prompt */ if (first_sleep && DE) { sleep(DE); /* remove any noise */ (void)tcflush(STDIN_FILENO, TCIOFLUSH); } first_sleep = 0; setttymode(0); if (AB) { tname = autobaud(); dogettytab(); continue; } if (PS) { tname = portselector(); dogettytab(); continue; } if (CL && *CL) putpad(CL); edithost(HE); /* if this is the first time through this, and an issue file has been given, then send it */ if (first_time && IF) { int fd; if ((fd = open(IF, O_RDONLY)) != -1) { char * cp; while ((cp = getline(fd)) != NULL) { putf(cp); } close(fd); } } first_time = 0; + if (IMP && *IMP && !(PL && PP)) + system(IMP); if (IM && *IM && !(PL && PP)) putf(IM); if (setjmp(timeout)) { cfsetispeed(&tmode, B0); cfsetospeed(&tmode, B0); (void)tcsetattr(STDIN_FILENO, TCSANOW, &tmode); exit(1); } if (TO) { signal(SIGALRM, dingdong); alarm(TO); } rval = 0; if (AL) { const char *p = AL; char *q = name; while (*p && q < &name[sizeof name - 1]) { if (isupper(*p)) upper = 1; else if (islower(*p)) lower = 1; else if (isdigit(*p)) digit = 1; *q++ = *p++; } } else if (!(PL && PP)) rval = getname(); if (rval == 2 || (PL && PP)) { oflush(); alarm(0); limit.rlim_max = RLIM_INFINITY; limit.rlim_cur = RLIM_INFINITY; (void)setrlimit(RLIMIT_CPU, &limit); execle(PP, "ppplogin", ttyn, (char *) 0, env); syslog(LOG_ERR, "%s: %m", PP); exit(1); } else if (rval || AL) { int i; oflush(); alarm(0); signal(SIGALRM, SIG_DFL); if (name[0] == '\0') continue; if (name[0] == '-') { puts("user names may not start with '-'."); continue; } if (!(upper || lower || digit)) { if (AL) { syslog(LOG_ERR, "invalid auto-login name: %s", AL); exit(1); } else continue; } set_flags(2); if (crmod) { tmode.c_iflag |= ICRNL; tmode.c_oflag |= ONLCR; } #if REALLY_OLD_TTYS if (upper || UC) tmode.sg_flags |= LCASE; if (lower || LC) tmode.sg_flags &= ~LCASE; #endif if (tcsetattr(STDIN_FILENO, TCSANOW, &tmode) < 0) { syslog(LOG_ERR, "tcsetattr %s: %m", ttyn); exit(1); } signal(SIGINT, SIG_DFL); for (i = 0; environ[i] != (char *)0; i++) env[i] = environ[i]; makeenv(&env[i]); limit.rlim_max = RLIM_INFINITY; limit.rlim_cur = RLIM_INFINITY; (void)setrlimit(RLIMIT_CPU, &limit); execle(LO, "login", AL ? "-fp" : "-p", name, (char *) 0, env); syslog(LOG_ERR, "%s: %m", LO); exit(1); } alarm(0); signal(SIGALRM, SIG_DFL); signal(SIGINT, SIG_IGN); if (NX && *NX) { tname = NX; dogettytab(); } } } static int opentty(const char *tty, int flags) { int i; int failopenlogged = 0; while ((i = open(tty, flags)) == -1) { if (!failopenlogged) { syslog(LOG_ERR, "open %s: %m", tty); failopenlogged = 1; } sleep(60); } if (login_tty(i) < 0) { if (daemon(0,0) < 0) { syslog(LOG_ERR,"daemon: %m"); close(i); return 0; } if (login_tty(i) < 0) { syslog(LOG_ERR, "login_tty %s: %m", tty); close(i); return 0; } } return 1; } static void defttymode(void) { struct termios def; /* Start with default tty settings. */ if (tcgetattr(STDIN_FILENO, &tmode) < 0) { syslog(LOG_ERR, "tcgetattr %s: %m", ttyn); exit(1); } omode = tmode; /* fill c_cc for dogettytab() */ dogettytab(); /* * Don't rely on the driver too much, and initialize crucial * things according to . Avoid clobbering * the c_cc[] settings however, the console drivers might wish * to leave their idea of the preferred VERASE key value * there. */ cfmakesane(&def); tmode.c_iflag = def.c_iflag; tmode.c_oflag = def.c_oflag; tmode.c_lflag = def.c_lflag; tmode.c_cflag = def.c_cflag; if (NC) tmode.c_cflag |= CLOCAL; omode = tmode; } static void setttymode(int raw) { int off = 0; (void)tcflush(STDIN_FILENO, TCIOFLUSH); /* clear out the crap */ ioctl(STDIN_FILENO, FIONBIO, &off); /* turn off non-blocking mode */ ioctl(STDIN_FILENO, FIOASYNC, &off); /* ditto for async mode */ if (IS) cfsetispeed(&tmode, speed(IS)); else if (SP) cfsetispeed(&tmode, speed(SP)); if (OS) cfsetospeed(&tmode, speed(OS)); else if (SP) cfsetospeed(&tmode, speed(SP)); set_flags(0); setchars(); if (raw) cfmakeraw(&tmode); if (tcsetattr(STDIN_FILENO, TCSANOW, &tmode) < 0) { syslog(LOG_ERR, "tcsetattr %s: %m", ttyn); exit(1); } } static int getname(void) { int c; char *np; unsigned char cs; int ppp_state = 0; int ppp_connection = 0; /* * Interrupt may happen if we use CBREAK mode */ if (setjmp(intrupt)) { signal(SIGINT, SIG_IGN); return (0); } signal(SIGINT, interrupt); set_flags(1); prompt(); oflush(); if (PF > 0) { sleep(PF); PF = 0; } if (tcsetattr(STDIN_FILENO, TCSANOW, &tmode) < 0) { syslog(LOG_ERR, "%s: %m", ttyn); exit(1); } crmod = digit = lower = upper = 0; np = name; for (;;) { oflush(); if (read(STDIN_FILENO, &cs, 1) <= 0) exit(0); if ((c = cs&0177) == 0) return (0); /* PPP detection state machine.. Look for sequences: PPP_FRAME, PPP_STATION, PPP_ESCAPE, PPP_CONTROL_ESCAPED or PPP_FRAME, PPP_STATION, PPP_CONTROL (deviant from RFC) See RFC1662. Derived from code from Michael Hancock, and Erik 'PPP' Olson, */ if (PP && (cs == PPP_FRAME)) { ppp_state = 1; } else if (ppp_state == 1 && cs == PPP_STATION) { ppp_state = 2; } else if (ppp_state == 2 && cs == PPP_ESCAPE) { ppp_state = 3; } else if ((ppp_state == 2 && cs == PPP_CONTROL) || (ppp_state == 3 && cs == PPP_CONTROL_ESCAPED)) { ppp_state = 4; } else if (ppp_state == 4 && cs == PPP_LCP_HI) { ppp_state = 5; } else if (ppp_state == 5 && cs == PPP_LCP_LOW) { ppp_connection = 1; break; } else { ppp_state = 0; } if (c == EOT || c == CTRL('d')) exit(0); if (c == '\r' || c == '\n' || np >= &name[sizeof name-1]) { putf("\r\n"); break; } if (islower(c)) lower = 1; else if (isupper(c)) upper = 1; else if (c == ERASE || c == '\b' || c == 0177) { if (np > name) { np--; if (cfgetospeed(&tmode) >= 1200) puts("\b \b"); else putchr(cs); } continue; } else if (c == KILL || c == CTRL('u')) { putchr('\r'); if (cfgetospeed(&tmode) < 1200) putchr('\n'); /* this is the way they do it down under ... */ else if (np > name) puts(" \r"); prompt(); digit = lower = upper = 0; np = name; continue; } else if (isdigit(c)) digit = 1; if (IG && (c <= ' ' || c > 0176)) continue; *np++ = c; putchr(cs); } signal(SIGINT, SIG_IGN); *np = 0; if (c == '\r') crmod = 1; if ((upper && !lower && !LC) || UC) for (np = name; *np; np++) if (isupper(*np)) *np = tolower(*np); return (1 + ppp_connection); } static void putpad(const char *s) { int pad = 0; speed_t ospeed = cfgetospeed(&tmode); if (isdigit(*s)) { while (isdigit(*s)) { pad *= 10; pad += *s++ - '0'; } pad *= 10; if (*s == '.' && isdigit(s[1])) { pad += s[1] - '0'; s += 2; } } puts(s); /* * If no delay needed, or output speed is * not comprehensible, then don't try to delay. */ if (pad == 0 || ospeed <= 0) return; /* * Round up by a half a character frame, and then do the delay. * Too bad there are no user program accessible programmed delays. * Transmitting pad characters slows many terminals down and also * loads the system. */ pad = (pad * ospeed + 50000) / 100000; while (pad--) putchr(*PC); } static void puts(const char *s) { while (*s) putchr(*s++); } char outbuf[OBUFSIZ]; int obufcnt = 0; static void putchr(int cc) { char c; c = cc; if (!NP) { c |= partab[c&0177] & 0200; if (OP) c ^= 0200; } if (!UB) { outbuf[obufcnt++] = c; if (obufcnt >= OBUFSIZ) oflush(); } else write(STDOUT_FILENO, &c, 1); } static void oflush(void) { if (obufcnt) write(STDOUT_FILENO, outbuf, obufcnt); obufcnt = 0; } static void prompt(void) { putf(LM); if (CO) putchr('\n'); } static char * getline(int fd) { int i = 0; static char linebuf[512]; /* * This is certainly slow, but it avoids having to include * stdio.h unnecessarily. Issue files should be small anyway. */ while (i < (sizeof linebuf - 3) && read(fd, linebuf+i, 1)==1) { if (linebuf[i] == '\n') { /* Don't rely on newline mode, assume raw */ linebuf[i++] = '\r'; linebuf[i++] = '\n'; linebuf[i] = '\0'; return linebuf; } ++i; } linebuf[i] = '\0'; return i ? linebuf : 0; } static void putf(const char *cp) { extern char editedhost[]; time_t t; char *slash, db[100]; static struct utsname kerninfo; if (!*kerninfo.sysname) uname(&kerninfo); while (*cp) { if (*cp != '%') { putchr(*cp++); continue; } switch (*++cp) { case 't': slash = strrchr(ttyn, '/'); if (slash == (char *) 0) puts(ttyn); else puts(&slash[1]); break; case 'h': puts(editedhost); break; case 'd': { t = (time_t)0; (void)time(&t); if (Lo) (void)setlocale(LC_TIME, Lo); (void)strftime(db, sizeof(db), DF, localtime(&t)); puts(db); break; case 's': puts(kerninfo.sysname); break; case 'm': puts(kerninfo.machine); break; case 'r': puts(kerninfo.release); break; case 'v': puts(kerninfo.version); break; } case '%': putchr('%'); break; } cp++; } } /* * Read a gettytab database entry and perform necessary quirks. */ static void dogettytab(void) { /* Read the database entry. */ gettable(tname, tabent); /* * Avoid inheriting the parity values from the default entry * if any of them is set in the current entry. * Mixing different parity settings is unreasonable. */ if (OPset || EPset || APset || NPset) OPset = EPset = APset = NPset = 1; /* Fill in default values for unset capabilities. */ setdefaults(); }