#ifndef lint static char *rid="$XConsortium: main.c,v 1.225.1.1 95/01/13 21:13:04 kaleb Exp $"; #endif /* lint */ /* $XFree86: xc/programs/xterm/main.c,v 3.14 1995/01/29 02:10:18 dawes Exp $ */ /* * W A R N I N G * * If you think you know what all of this code is doing, you are * probably very mistaken. There be serious and nasty dragons here. * * This client is *not* to be taken as an example of how to write X * Toolkit applications. It is in need of a substantial rewrite, * ideally to create a generic tty widget with several different parsing * widgets so that you can plug 'em together any way you want. Don't * hold your breath, though.... */ /*********************************************************** Copyright (c) 1987, 1988 X Consortium Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE X CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. Except as contained in this notice, the name of the X Consortium shall not be used in advertising or otherwise to promote the sale, use or other dealings in this Software without prior written authorization from the X Consortium. Copyright 1987, 1988 by Digital Equipment Corporation, Maynard. All Rights Reserved Permission to use, copy, modify, and distribute this software and its documentation for any purpose and without fee is hereby granted, provided that the above copyright notice appear in all copies and that both that copyright notice and this permission notice appear in supporting documentation, and that the name of Digital not be used in advertising or publicity pertaining to distribution of the software without specific, written prior permission. DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. ******************************************************************/ /* main.c */ #include "ptyx.h" #include "data.h" #include "error.h" #include "menu.h" #include #include #ifdef I18N #include #endif #include #include #include #include #include #ifdef AMOEBA #include #include #include #include #define _POSIX_SOURCE #include #include #include #define USE_TERMIOS #define USE_POSIX_WAIT #define NILCAP ((capability *)NULL) #endif #ifdef MINIX #include #define setpgrp(pid, pgid) setpgid(pid, pgid) #define USE_TERMIOS #define HAS_UTMP_UT_HOST #define MNX_LASTLOG #define WTMP /* Remap or define non-existing termios flags */ #define OCRNL 0 #define ONLRET 0 #define NLDLY 0 #define CRDLY 0 #define TABDLY 0 #define BSDLY 0 #define VTDLY 0 #define FFDLY 0 #endif #ifdef att #define ATT #endif #ifdef SVR4 #define SYSV /* SVR4 is (approx) superset of SVR3 */ #define ATT #define USE_SYSV_UTMP #define USE_TERMIOS #define HAS_UTMP_UT_HOST #endif #if defined(sgi) && OSMAJORVERSION >= 5 #define SVR4 /* close enough for xterm */ #define USE_SYSV_UTMP #define USE_TERMIOS #define HAS_UTMP_UT_HOST #endif #if defined(SYSV) && defined(i386) && !defined(SVR4) #define USE_SYSV_UTMP #define ATT #define USE_HANDSHAKE static Bool IsPts = False; #endif #ifdef ATT #define USE_USG_PTYS #else #define USE_HANDSHAKE #endif #if defined(SYSV) && !defined(SVR4) && !defined(ISC22) && !defined(ISC30) /* older SYSV systems cannot ignore SIGHUP. Shell hangs, or you get extra shells, or something like that */ #define USE_SYSV_SIGHUP #endif #if defined(sony) && defined(bsd43) && !defined(KANJI) #define KANJI #endif #ifdef linux #define USE_SYSV_TERMIO #define USE_SYSV_PGRP #define USE_SYSV_UTMP #define USE_SYSV_SIGNALS #define HAS_UTMP_UT_HOST #define LASTLOG #define WTMP #endif #include #include #ifdef USE_TERMIOS #include /* this hacked termios support only works on SYSV */ #define USE_SYSV_TERMIO #define termio termios #undef TCGETA #define TCGETA TCGETS #undef TCSETA #define TCSETA TCSETS #else /* USE_TERMIOS */ #ifdef SYSV #include #ifdef SCO /* broken TIOCSWINSZ ioctl so disable it */ #undef TIOCSWINSZ #endif #endif /* SYSV */ #endif /* USE_TERMIOS else */ #ifdef SVR4 #undef TIOCSLTC /* defined, but not useable */ #endif #define USE_TERMCAP_ENVVARS /* every one uses this except SYSV maybe */ #if defined(sgi) && OSMAJORVERSION >= 5 #undef TIOCLSET /* defined, but not useable */ #endif #ifdef SYSV /* { */ #ifdef USE_USG_PTYS /* AT&T SYSV has no ptyio.h */ #include /* get typedef used in ptem.h */ #include /* for I_PUSH */ #ifndef SVR4 #include /* get struct winsize */ #endif #include /* for POLLIN */ #endif /* USE_USG_PTYS */ #define USE_SYSV_TERMIO #define USE_SYSV_SIGNALS #define USE_SYSV_PGRP #define USE_SYSV_ENVVARS /* COLUMNS/LINES vs. TERMCAP */ #ifndef SCO #undef USE_TERMCAP_ENVVARS /* SCO wants both TERMCAP and TERMINFO env */ #endif /* * now get system-specific includes */ #ifdef CRAY #define USE_SYSV_UTMP #define HAS_UTMP_UT_HOST #define HAS_BSD_GROUPS #endif #ifdef macII #define USE_SYSV_UTMP #define HAS_UTMP_UT_HOST #define HAS_BSD_GROUPS #include #undef USE_SYSV_ENVVARS #undef FIOCLEX #undef FIONCLEX #define setpgrp2 setpgrp #include #include #endif #ifdef hpux #define HAS_BSD_GROUPS #define USE_SYSV_UTMP #define HAS_UTMP_UT_HOST #include #endif /* hpux */ #ifdef sgi #include #endif /* sgi */ #ifdef sun #include #endif #ifdef AIXV3 #define USE_SYSV_UTMP #define HAS_UTMP_UT_HOST #endif #else /* } !SYSV { */ /* BSD systems */ #ifdef MINIX /* { */ #else /* } !MINIX { */ #ifndef linux #include #include #define HAS_UTMP_UT_HOST #define HAS_BSD_GROUPS #ifdef __osf__ #define USE_SYSV_UTMP #define setpgrp setpgid #endif #endif /* !linux */ #endif /* } MINIX */ #endif /* } !SYSV */ #ifdef _POSIX_SOURCE #define USE_POSIX_WAIT #define HAS_POSIX_SAVED_IDS #endif #ifdef SVR4 #define USE_POSIX_WAIT #define HAS_POSIX_SAVED_IDS #endif #if !defined(MINIX) && !defined(WIN32) #include /* for NOFILE */ #endif #if (BSD >= 199103) #define USE_POSIX_WAIT #define LASTLOG #define WTMP #define HAS_POSIX_SAVED_IDS #endif #include #include #include #ifdef X_NOT_STDC_ENV extern int errno; #define Time_t long extern Time_t time (); #else #include #define Time_t time_t #endif #ifdef hpux #include #endif /* hpux */ #if defined(apollo) && OSMAJORVERSION == 10 && OSMINORVERSION < 4 #define ttyslot() 1 #endif /* apollo */ #ifdef SVR4 #include #define setutent setutxent #define getutent getutxent #define getutid getutxid #define endutent endutxent #define pututline pututxline #else #ifdef ISC #include #endif #include #if defined(_CRAY) && OSMAJORVERSION < 8 extern struct utmp *getutid __((struct utmp *_Id)); #endif #endif #ifndef ISC #ifdef UTMP #include #endif #if defined(LASTLOG) && (BSD < 199103) #include #endif #endif #ifdef PUCC_PTYD #include int Ptyfd; #endif /* PUCC_PTYD */ #ifdef sequent #define USE_GET_PSEUDOTTY #endif #ifndef UTMP_FILENAME #ifdef UTMP_FILE #define UTMP_FILENAME UTMP_FILE #else #if defined(_PATH_UTMP) #define UTMP_FILENAME _PATH_UTMP #else #define UTMP_FILENAME "/etc/utmp" #endif #endif #endif #ifndef LASTLOG_FILENAME #ifdef _PATH_LASTLOG #define LASTLOG_FILENAME _PATH_LASTLOG #else #define LASTLOG_FILENAME "/usr/adm/lastlog" /* only on BSD systems */ #endif #endif #ifndef WTMP_FILENAME #ifdef WTMP_FILE #define WTMP_FILENAME WTMP_FILE #else #if defined(_PATH_WTMP) #define WTMP_FILENAME _PATH_WTMP #else #if defined(SYSV) #define WTMP_FILENAME "/etc/wtmp" #else #define WTMP_FILENAME "/usr/adm/wtmp" #endif #endif #endif #endif #include #if defined(SCO) || defined(ISC) #undef SIGTSTP /* defined, but not the BSD way */ #endif #ifdef SIGTSTP #include #ifdef hpux #include #endif #endif #ifdef SIGNALRETURNSINT #define SIGNAL_T int #define SIGNAL_RETURN return 0 #else #define SIGNAL_T void #define SIGNAL_RETURN return #endif SIGNAL_T Exit(); #ifndef X_NOT_POSIX #include #else extern long lseek(); #if defined(USG) || defined(SCO324) extern unsigned sleep(); #else extern void sleep(); #endif #endif #ifndef X_NOT_STDC_ENV #include #else extern char *malloc(); extern char *calloc(); extern char *realloc(); extern char *getenv(); extern void exit(); #endif #ifdef X_NOT_POSIX extern char *ttyname(); #endif #ifdef SYSV extern char *ptsname(); #endif extern char *strindex (); extern void HandlePopupMenu(); int switchfb[] = {0, 2, 1, 3}; static SIGNAL_T reapchild (); static Bool added_utmp_entry = False; static char **command_to_exec; #ifdef USE_SYSV_TERMIO /* The following structures are initialized in main() in order ** to eliminate any assumptions about the internal order of their ** contents. */ static struct termio d_tio; #ifdef TIOCSLTC static struct ltchars d_ltc; #endif /* TIOCSLTC */ #ifdef TIOCLSET static unsigned int d_lmode; #endif /* TIOCLSET */ #else /* not USE_SYSV_TERMIO */ static struct sgttyb d_sg = { 0, 0, 0177, CKILL, EVENP|ODDP|ECHO|XTABS|CRMOD }; static struct tchars d_tc = { CINTR, CQUIT, CSTART, CSTOP, CEOF, CBRK, }; static struct ltchars d_ltc = { CSUSP, CDSUSP, CRPRNT, CFLUSH, CWERASE, CLNEXT }; static int d_disipline = NTTYDISC; static long int d_lmode = LCRTBS|LCRTERA|LCRTKIL|LCTLECH; #ifdef sony static long int d_jmode = KM_SYSSJIS|KM_ASCII; static struct jtchars d_jtc = { 'J', 'B' }; #endif /* sony */ #endif /* USE_SYSV_TERMIO */ static int parse_tty_modes (); /* * SYSV has the termio.c_cc[V] and ltchars; BSD has tchars and ltchars; * SVR4 has only termio.c_cc, but it includes everything from ltchars. */ static int override_tty_modes = 0; struct _xttymodes { char *name; int len; int set; char value; } ttymodelist[] = { { "intr", 4, 0, '\0' }, /* tchars.t_intrc ; VINTR */ #define XTTYMODE_intr 0 { "quit", 4, 0, '\0' }, /* tchars.t_quitc ; VQUIT */ #define XTTYMODE_quit 1 { "erase", 5, 0, '\0' }, /* sgttyb.sg_erase ; VERASE */ #define XTTYMODE_erase 2 { "kill", 4, 0, '\0' }, /* sgttyb.sg_kill ; VKILL */ #define XTTYMODE_kill 3 { "eof", 3, 0, '\0' }, /* tchars.t_eofc ; VEOF */ #define XTTYMODE_eof 4 { "eol", 3, 0, '\0' }, /* VEOL */ #define XTTYMODE_eol 5 { "swtch", 5, 0, '\0' }, /* VSWTCH */ #define XTTYMODE_swtch 6 { "start", 5, 0, '\0' }, /* tchars.t_startc */ #define XTTYMODE_start 7 { "stop", 4, 0, '\0' }, /* tchars.t_stopc */ #define XTTYMODE_stop 8 { "brk", 3, 0, '\0' }, /* tchars.t_brkc */ #define XTTYMODE_brk 9 { "susp", 4, 0, '\0' }, /* ltchars.t_suspc ; VSUSP */ #define XTTYMODE_susp 10 { "dsusp", 5, 0, '\0' }, /* ltchars.t_dsuspc ; VDSUSP */ #define XTTYMODE_dsusp 11 { "rprnt", 5, 0, '\0' }, /* ltchars.t_rprntc ; VREPRINT */ #define XTTYMODE_rprnt 12 { "flush", 5, 0, '\0' }, /* ltchars.t_flushc ; VDISCARD */ #define XTTYMODE_flush 13 { "weras", 5, 0, '\0' }, /* ltchars.t_werasc ; VWERASE */ #define XTTYMODE_weras 14 { "lnext", 5, 0, '\0' }, /* ltchars.t_lnextc ; VLNEXT */ #define XTTYMODE_lnext 15 { NULL, 0, 0, '\0' }, /* end of data */ }; #ifdef USE_SYSV_UTMP #if defined(X_NOT_STDC_ENV) || defined(AIXV3) extern struct utmp *getutent(); extern struct utmp *getutid(); extern struct utmp *getutline(); #ifndef SCO324 extern void pututline(); extern void setutent(); extern void endutent(); extern void utmpname(); #endif /* SCO324 */ #endif /* X_NOT_STDC_ENV || AIXV3 */ #ifdef X_NOT_STDC_ENV /* could remove paragraph unconditionally? */ extern struct passwd *getpwent(); extern struct passwd *getpwuid(); extern struct passwd *getpwnam(); extern void setpwent(); extern void endpwent(); #endif extern struct passwd *fgetpwent(); #else /* not USE_SYSV_UTMP */ static char etc_utmp[] = UTMP_FILENAME; #endif /* USE_SYSV_UTMP */ #ifdef LASTLOG static char etc_lastlog[] = LASTLOG_FILENAME; #endif #ifdef WTMP static char etc_wtmp[] = WTMP_FILENAME; #endif /* * Some people with 4.3bsd /bin/login seem to like to use login -p -f user * to implement xterm -ls. They can turn on USE_LOGIN_DASH_P and turn off * WTMP and LASTLOG. */ #ifdef USE_LOGIN_DASH_P #ifndef LOGIN_FILENAME #define LOGIN_FILENAME "/bin/login" #endif static char bin_login[] = LOGIN_FILENAME; #endif static int inhibit; static char passedPty[2]; /* name if pty if slave */ #if defined(TIOCCONS) || defined(SRIOCSREDIR) static int Console; #include /* XmuGetHostname */ #define MIT_CONSOLE_LEN 12 #define MIT_CONSOLE "MIT_CONSOLE_" static char mit_console_name[255 + MIT_CONSOLE_LEN + 1] = MIT_CONSOLE; static Atom mit_console; #endif /* TIOCCONS */ #ifndef USE_SYSV_UTMP static int tslot; #endif /* USE_SYSV_UTMP */ static jmp_buf env; char *ProgramName; Boolean sunFunctionKeys; static struct _resource { char *xterm_name; char *icon_geometry; char *title; char *icon_name; char *term_name; char *tty_modes; Boolean utmpInhibit; Boolean sunFunctionKeys; /* %%% should be widget resource? */ Boolean wait_for_map; Boolean useInsertMode; } resource; /* used by VT (charproc.c) */ #define offset(field) XtOffsetOf(struct _resource, field) static XtResource application_resources[] = { {"name", "Name", XtRString, sizeof(char *), offset(xterm_name), XtRString, "xterm"}, {"iconGeometry", "IconGeometry", XtRString, sizeof(char *), offset(icon_geometry), XtRString, (caddr_t) NULL}, {XtNtitle, XtCTitle, XtRString, sizeof(char *), offset(title), XtRString, (caddr_t) NULL}, {XtNiconName, XtCIconName, XtRString, sizeof(char *), offset(icon_name), XtRString, (caddr_t) NULL}, {"termName", "TermName", XtRString, sizeof(char *), offset(term_name), XtRString, (caddr_t) NULL}, {"ttyModes", "TtyModes", XtRString, sizeof(char *), offset(tty_modes), XtRString, (caddr_t) NULL}, {"utmpInhibit", "UtmpInhibit", XtRBoolean, sizeof (Boolean), offset(utmpInhibit), XtRString, "false"}, {"sunFunctionKeys", "SunFunctionKeys", XtRBoolean, sizeof (Boolean), offset(sunFunctionKeys), XtRString, "false"}, {"waitForMap", "WaitForMap", XtRBoolean, sizeof (Boolean), offset(wait_for_map), XtRString, "false"}, {"useInsertMode", "UseInsertMode", XtRBoolean, sizeof (Boolean), offset(useInsertMode), XtRString, "false"}, }; #undef offset static char *fallback_resources[] = { "XTerm*SimpleMenu*menuLabel.vertSpace: 100", "XTerm*SimpleMenu*HorizontalMargins: 16", "XTerm*SimpleMenu*Sme.height: 16", "XTerm*SimpleMenu*Cursor: left_ptr", "XTerm*mainMenu.Label: Main Options (no app-defaults)", "XTerm*vtMenu.Label: VT Options (no app-defaults)", "XTerm*fontMenu.Label: VT Fonts (no app-defaults)", "XTerm*tekMenu.Label: Tek Options (no app-defaults)", NULL }; /* Command line options table. Only resources are entered here...there is a pass over the remaining options after XrmParseCommand is let loose. */ static XrmOptionDescRec optionDescList[] = { {"-geometry", "*vt100.geometry",XrmoptionSepArg, (caddr_t) NULL}, {"-132", "*c132", XrmoptionNoArg, (caddr_t) "on"}, {"+132", "*c132", XrmoptionNoArg, (caddr_t) "off"}, {"-ah", "*alwaysHighlight", XrmoptionNoArg, (caddr_t) "on"}, {"+ah", "*alwaysHighlight", XrmoptionNoArg, (caddr_t) "off"}, {"-b", "*internalBorder",XrmoptionSepArg, (caddr_t) NULL}, {"-cb", "*cutToBeginningOfLine", XrmoptionNoArg, (caddr_t) "off"}, {"+cb", "*cutToBeginningOfLine", XrmoptionNoArg, (caddr_t) "on"}, {"-cc", "*charClass", XrmoptionSepArg, (caddr_t) NULL}, {"-cn", "*cutNewline", XrmoptionNoArg, (caddr_t) "off"}, {"+cn", "*cutNewline", XrmoptionNoArg, (caddr_t) "on"}, {"-cr", "*cursorColor", XrmoptionSepArg, (caddr_t) NULL}, {"-cu", "*curses", XrmoptionNoArg, (caddr_t) "on"}, {"+cu", "*curses", XrmoptionNoArg, (caddr_t) "off"}, {"-e", NULL, XrmoptionSkipLine, (caddr_t) NULL}, {"-fb", "*boldFont", XrmoptionSepArg, (caddr_t) NULL}, {"-j", "*jumpScroll", XrmoptionNoArg, (caddr_t) "on"}, {"+j", "*jumpScroll", XrmoptionNoArg, (caddr_t) "off"}, /* parse logging options anyway for compatibility */ {"-l", "*logging", XrmoptionNoArg, (caddr_t) "on"}, {"+l", "*logging", XrmoptionNoArg, (caddr_t) "off"}, {"-lf", "*logFile", XrmoptionSepArg, (caddr_t) NULL}, {"-ls", "*loginShell", XrmoptionNoArg, (caddr_t) "on"}, {"+ls", "*loginShell", XrmoptionNoArg, (caddr_t) "off"}, {"-mb", "*marginBell", XrmoptionNoArg, (caddr_t) "on"}, {"+mb", "*marginBell", XrmoptionNoArg, (caddr_t) "off"}, {"-mc", "*multiClickTime", XrmoptionSepArg, (caddr_t) NULL}, {"-ms", "*pointerColor",XrmoptionSepArg, (caddr_t) NULL}, {"-nb", "*nMarginBell", XrmoptionSepArg, (caddr_t) NULL}, {"-rw", "*reverseWrap", XrmoptionNoArg, (caddr_t) "on"}, {"+rw", "*reverseWrap", XrmoptionNoArg, (caddr_t) "off"}, {"-aw", "*autoWrap", XrmoptionNoArg, (caddr_t) "on"}, {"+aw", "*autoWrap", XrmoptionNoArg, (caddr_t) "off"}, {"-s", "*multiScroll", XrmoptionNoArg, (caddr_t) "on"}, {"+s", "*multiScroll", XrmoptionNoArg, (caddr_t) "off"}, {"-sb", "*scrollBar", XrmoptionNoArg, (caddr_t) "on"}, {"+sb", "*scrollBar", XrmoptionNoArg, (caddr_t) "off"}, {"-sf", "*sunFunctionKeys", XrmoptionNoArg, (caddr_t) "on"}, {"+sf", "*sunFunctionKeys", XrmoptionNoArg, (caddr_t) "off"}, {"-si", "*scrollTtyOutput", XrmoptionNoArg, (caddr_t) "off"}, {"+si", "*scrollTtyOutput", XrmoptionNoArg, (caddr_t) "on"}, {"-sk", "*scrollKey", XrmoptionNoArg, (caddr_t) "on"}, {"+sk", "*scrollKey", XrmoptionNoArg, (caddr_t) "off"}, {"-sl", "*saveLines", XrmoptionSepArg, (caddr_t) NULL}, {"-t", "*tekStartup", XrmoptionNoArg, (caddr_t) "on"}, {"+t", "*tekStartup", XrmoptionNoArg, (caddr_t) "off"}, {"-tm", "*ttyModes", XrmoptionSepArg, (caddr_t) NULL}, {"-tn", "*termName", XrmoptionSepArg, (caddr_t) NULL}, {"-ut", "*utmpInhibit", XrmoptionNoArg, (caddr_t) "on"}, {"+ut", "*utmpInhibit", XrmoptionNoArg, (caddr_t) "off"}, {"-im", "*useInsertMode", XrmoptionNoArg, (caddr_t) "on"}, {"+im", "*useInsertMode", XrmoptionNoArg, (caddr_t) "off"}, {"-vb", "*visualBell", XrmoptionNoArg, (caddr_t) "on"}, {"+vb", "*visualBell", XrmoptionNoArg, (caddr_t) "off"}, {"-wf", "*waitForMap", XrmoptionNoArg, (caddr_t) "on"}, {"+wf", "*waitForMap", XrmoptionNoArg, (caddr_t) "off"}, /* bogus old compatibility stuff for which there are standard XtAppInitialize options now */ {"%", "*tekGeometry", XrmoptionStickyArg, (caddr_t) NULL}, {"#", ".iconGeometry",XrmoptionStickyArg, (caddr_t) NULL}, {"-T", "*title", XrmoptionSepArg, (caddr_t) NULL}, {"-n", "*iconName", XrmoptionSepArg, (caddr_t) NULL}, {"-r", "*reverseVideo",XrmoptionNoArg, (caddr_t) "on"}, {"+r", "*reverseVideo",XrmoptionNoArg, (caddr_t) "off"}, {"-rv", "*reverseVideo",XrmoptionNoArg, (caddr_t) "on"}, {"+rv", "*reverseVideo",XrmoptionNoArg, (caddr_t) "off"}, {"-w", ".borderWidth", XrmoptionSepArg, (caddr_t) NULL}, }; static struct _options { char *opt; char *desc; } options[] = { { "-help", "print out this message" }, { "-display displayname", "X server to contact" }, { "-geometry geom", "size (in characters) and position" }, { "-/+rv", "turn on/off reverse video" }, { "-bg color", "background color" }, { "-fg color", "foreground color" }, { "-bd color", "border color" }, { "-bw number", "border width in pixels" }, { "-fn fontname", "normal text font" }, { "-iconic", "start iconic" }, { "-name string", "client instance, icon, and title strings" }, { "-title string", "title string" }, { "-xrm resourcestring", "additional resource specifications" }, { "-/+132", "turn on/off column switch inhibiting" }, { "-/+ah", "turn on/off always highlight" }, { "-b number", "internal border in pixels" }, { "-/+cb", "turn on/off cut-to-beginning-of-line inhibit" }, { "-cc classrange", "specify additional character classes" }, { "-/+cn", "turn on/off cut newline inhibit" }, { "-cr color", "text cursor color" }, { "-/+cu", "turn on/off curses emulation" }, { "-fb fontname", "bold text font" }, { "-/+im", "use insert mode for TERMCAP" }, { "-/+j", "turn on/off jump scroll" }, #ifdef ALLOWLOGGING { "-/+l", "turn on/off logging" }, { "-lf filename", "logging filename" }, #else { "-/+l", "turn on/off logging (not supported)" }, { "-lf filename", "logging filename (not supported)" }, #endif { "-/+ls", "turn on/off login shell" }, { "-/+mb", "turn on/off margin bell" }, { "-mc milliseconds", "multiclick time in milliseconds" }, { "-ms color", "pointer color" }, { "-nb number", "margin bell in characters from right end" }, { "-/+aw", "turn on/off auto wraparound" }, { "-/+rw", "turn on/off reverse wraparound" }, { "-/+s", "turn on/off multiscroll" }, { "-/+sb", "turn on/off scrollbar" }, { "-/+sf", "turn on/off Sun Function Key escape codes" }, { "-/+si", "turn on/off scroll-on-tty-output inhibit" }, { "-/+sk", "turn on/off scroll-on-keypress" }, { "-sl number", "number of scrolled lines to save" }, { "-/+t", "turn on/off Tek emulation window" }, { "-tm string", "terminal mode keywords and characters" }, { "-tn name", "TERM environment variable name" }, #ifdef UTMP { "-/+ut", "turn on/off utmp inhibit" }, #else { "-/+ut", "turn on/off utmp inhibit (not supported)" }, #endif { "-/+vb", "turn on/off visual bell" }, { "-/+wf", "turn on/off wait for map before command exec" }, { "-e command args ...", "command to execute" }, { "%geom", "Tek window geometry" }, { "#geom", "icon window geometry" }, { "-T string", "title name for window" }, { "-n string", "icon name for window" }, #if defined(TIOCCONS) || defined(SRIOCSREDIR) { "-C", "intercept console messages" }, #else { "-C", "intercept console messages (not supported)" }, #endif { "-Sxxd", "slave mode on \"ttyxx\", file descriptor \"d\"" }, { NULL, NULL }}; static char *message[] = { "Fonts must be fixed width and, if both normal and bold are specified, must", "have the same size. If only a normal font is specified, it will be used for", "both normal and bold text (by doing overstriking). The -e option, if given,", "must be appear at the end of the command line, otherwise the user's default", "shell will be started. Options that start with a plus sign (+) restore the", "default.", NULL}; static void Syntax (badOption) char *badOption; { struct _options *opt; int col; fprintf (stderr, "%s: bad command line option \"%s\"\r\n\n", ProgramName, badOption); fprintf (stderr, "usage: %s", ProgramName); col = 8 + strlen(ProgramName); for (opt = options; opt->opt; opt++) { int len = 3 + strlen(opt->opt); /* space [ string ] */ if (col + len > 79) { fprintf (stderr, "\r\n "); /* 3 spaces */ col = 3; } fprintf (stderr, " [%s]", opt->opt); col += len; } fprintf (stderr, "\r\n\nType %s -help for a full description.\r\n\n", ProgramName); exit (1); } static void Help () { struct _options *opt; char **cpp; fprintf (stderr, "usage:\n %s [-options ...] [-e command args]\n\n", ProgramName); fprintf (stderr, "where options include:\n"); for (opt = options; opt->opt; opt++) { fprintf (stderr, " %-28s %s\n", opt->opt, opt->desc); } putc ('\n', stderr); for (cpp = message; *cpp; cpp++) { fputs (*cpp, stderr); putc ('\n', stderr); } putc ('\n', stderr); exit (0); } #if defined(TIOCCONS) || defined(SRIOCSREDIR) /* ARGSUSED */ static Boolean ConvertConsoleSelection(w, selection, target, type, value, length, format) Widget w; Atom *selection, *target, *type; XtPointer *value; unsigned long *length; int *format; { /* we don't save console output, so can't offer it */ return False; } #endif /* TIOCCONS */ extern WidgetClass xtermWidgetClass; Arg ourTopLevelShellArgs[] = { { XtNallowShellResize, (XtArgVal) TRUE }, { XtNinput, (XtArgVal) TRUE }, }; int number_ourTopLevelShellArgs = 2; XtAppContext app_con; Widget toplevel; Bool waiting_for_initial_map; extern void do_hangup(); extern void xt_error(); /* * DeleteWindow(): Action proc to implement ICCCM delete_window. */ /* ARGSUSED */ void DeleteWindow(w, event, params, num_params) Widget w; XEvent *event; String *params; Cardinal *num_params; { if (w == toplevel) if (term->screen.Tshow) hide_vt_window(); else do_hangup(w); else if (term->screen.Vshow) hide_tek_window(); else do_hangup(w); } /* ARGSUSED */ void KeyboardMapping(w, event, params, num_params) Widget w; XEvent *event; String *params; Cardinal *num_params; { switch (event->type) { case MappingNotify: XRefreshKeyboardMapping(&event->xmapping); break; } } XtActionsRec actionProcs[] = { "DeleteWindow", DeleteWindow, "KeyboardMapping", KeyboardMapping, }; Atom wm_delete_window; main (argc, argv) int argc; char **argv; { register TScreen *screen; register int pty; int Xsocket, mode; char *base_name(); int xerror(), xioerror(); #ifdef I18N setlocale(LC_ALL, NULL); #endif ProgramName = argv[0]; #ifndef AMOEBA ttydev = (char *) malloc (strlen (TTYDEV) + 1); ptydev = (char *) malloc (strlen (PTYDEV) + 1); if (!ttydev || !ptydev) { fprintf (stderr, "%s: unable to allocate memory for ttydev or ptydev\n", ProgramName); exit (1); } strcpy (ttydev, TTYDEV); strcpy (ptydev, PTYDEV); #ifdef MINIX d_tio.c_iflag= TINPUT_DEF; d_tio.c_oflag= TOUTPUT_DEF; d_tio.c_cflag= TCTRL_DEF; d_tio.c_lflag= TLOCAL_DEF; cfsetispeed(&d_tio, TSPEED_DEF); cfsetispeed(&d_tio, TSPEED_DEF); d_tio.c_cc[VEOF]= TEOF_DEF; d_tio.c_cc[VEOL]= TEOL_DEF; d_tio.c_cc[VERASE]= TERASE_DEF; d_tio.c_cc[VINTR]= TINTR_DEF; d_tio.c_cc[VKILL]= TKILL_DEF; d_tio.c_cc[VMIN]= TMIN_DEF; d_tio.c_cc[VQUIT]= TQUIT_DEF; d_tio.c_cc[VTIME]= TTIME_DEF; d_tio.c_cc[VSUSP]= TSUSP_DEF; d_tio.c_cc[VSTART]= TSTART_DEF; d_tio.c_cc[VSTOP]= TSTOP_DEF; d_tio.c_cc[VREPRINT]= TREPRINT_DEF; d_tio.c_cc[VLNEXT]= TLNEXT_DEF; d_tio.c_cc[VDISCARD]= TDISCARD_DEF; #else /* !MINIX */ #ifdef USE_SYSV_TERMIO /* Initialization is done here rather than above in order ** to prevent any assumptions about the order of the contents ** of the various terminal structures (which may change from ** implementation to implementation). */ #if defined(macII) || defined(ATT) || defined(CRAY) d_tio.c_iflag = ICRNL|IXON; d_tio.c_oflag = OPOST|ONLCR|TAB3; d_tio.c_cflag = B9600|CS8|CREAD|PARENB|HUPCL; d_tio.c_lflag = ISIG|ICANON|ECHO|ECHOE|ECHOK; #ifndef USE_TERMIOS d_tio.c_line = 0; #endif d_tio.c_cc[VINTR] = CINTR; d_tio.c_cc[VQUIT] = CQUIT; d_tio.c_cc[VERASE] = CERASE; d_tio.c_cc[VKILL] = CKILL; d_tio.c_cc[VEOF] = CEOF; d_tio.c_cc[VEOL] = CNUL; d_tio.c_cc[VEOL2] = CNUL; d_tio.c_cc[VSWTCH] = CNUL; #ifdef USE_TERMIOS d_tio.c_cc[VSUSP] = CSUSP; d_tio.c_cc[VDSUSP] = CDSUSP; d_tio.c_cc[VREPRINT] = CNUL; d_tio.c_cc[VDISCARD] = CNUL; d_tio.c_cc[VWERASE] = CNUL; d_tio.c_cc[VLNEXT] = CNUL; #endif #ifdef TIOCSLTC d_ltc.t_suspc = CSUSP; /* t_suspc */ d_ltc.t_dsuspc = CDSUSP; /* t_dsuspc */ d_ltc.t_rprntc = 0; /* reserved...*/ d_ltc.t_flushc = 0; d_ltc.t_werasc = 0; d_ltc.t_lnextc = 0; #endif /* TIOCSLTC */ #ifdef TIOCLSET d_lmode = 0; #endif /* TIOCLSET */ #else /* else !macII */ d_tio.c_iflag = ICRNL|IXON; d_tio.c_oflag = OPOST|ONLCR|TAB3; #ifdef BAUD_0 d_tio.c_cflag = CS8|CREAD|PARENB|HUPCL; #else /* !BAUD_0 */ d_tio.c_cflag = B9600|CS8|CREAD|PARENB|HUPCL; #endif /* !BAUD_0 */ d_tio.c_lflag = ISIG|ICANON|ECHO|ECHOE|ECHOK; #ifndef sgi d_tio.c_line = 0; #endif #ifndef linux d_tio.c_cc[VINTR] = 0x7f; /* DEL */ d_tio.c_cc[VERASE] = '#'; /* '#' */ d_tio.c_cc[VKILL] = '@'; /* '@' */ #else d_tio.c_cc[VINTR] = 'C' & 0x3f; /* '^C' */ d_tio.c_cc[VERASE] = 0x7f; /* DEL */ d_tio.c_cc[VKILL] = 'U' & 0x3f; /* '^U' */ #endif d_tio.c_cc[VQUIT] = '\\' & 0x3f; /* '^\' */ d_tio.c_cc[VEOF] = 'D' & 0x3f; /* '^D' */ d_tio.c_cc[VEOL] = '@' & 0x3f; /* '^@' */ #ifdef VSWTCH d_tio.c_cc[VSWTCH] = '@' & 0x3f; /* '^@' */ #endif /* VSWTCH */ /* now, try to inherit tty settings */ { int i; for (i = 0; i <= 2; i++) { struct termio deftio; if (ioctl (i, TCGETA, &deftio) == 0) { d_tio.c_cc[VINTR] = deftio.c_cc[VINTR]; d_tio.c_cc[VQUIT] = deftio.c_cc[VQUIT]; d_tio.c_cc[VERASE] = deftio.c_cc[VERASE]; d_tio.c_cc[VKILL] = deftio.c_cc[VKILL]; d_tio.c_cc[VEOF] = deftio.c_cc[VEOF]; d_tio.c_cc[VEOL] = deftio.c_cc[VEOL]; #ifdef VSWTCH d_tio.c_cc[VSWTCH] = deftio.c_cc[VSWTCH]; #endif /* VSWTCH */ break; } } } #ifdef TIOCSLTC d_ltc.t_suspc = '\000'; /* t_suspc */ d_ltc.t_dsuspc = '\000'; /* t_dsuspc */ d_ltc.t_rprntc = '\377'; /* reserved...*/ d_ltc.t_flushc = '\377'; d_ltc.t_werasc = '\377'; d_ltc.t_lnextc = '\377'; #endif /* TIOCSLTC */ #ifdef USE_TERMIOS #ifndef linux d_tio.c_cc[VSUSP] = '\000'; #else d_tio.c_cc[VSUSP] = 'Z' & 0x3f; #endif d_tio.c_cc[VDSUSP] = '\000'; d_tio.c_cc[VREPRINT] = '\377'; d_tio.c_cc[VDISCARD] = '\377'; d_tio.c_cc[VWERASE] = '\377'; d_tio.c_cc[VLNEXT] = '\377'; #endif #ifdef TIOCLSET d_lmode = 0; #endif /* TIOCLSET */ #endif /* macII */ #endif /* USE_SYSV_TERMIO */ #endif /* MINIX */ #endif /* AMOEBA */ /* Init the Toolkit. */ { #ifdef HAS_POSIX_SAVED_IDS uid_t euid = geteuid(); gid_t egid = getegid(); uid_t ruid = getuid(); gid_t rgid = getgid(); if (setegid(ruid) == -1) (void) fprintf(stderr, "setegid(%d): %s\n", rgid, strerror(errno)); if (seteuid(ruid) == -1) (void) fprintf(stderr, "seteuid(%d): %s\n", ruid, strerror(errno)); #endif XtSetErrorHandler(xt_error); toplevel = XtAppInitialize (&app_con, "XTerm", optionDescList, XtNumber(optionDescList), &argc, argv, fallback_resources, NULL, 0); XtGetApplicationResources(toplevel, (XtPointer) &resource, application_resources, XtNumber(application_resources), NULL, 0); #ifdef HAS_POSIX_SAVED_IDS if (seteuid(euid) == -1) (void) fprintf(stderr, "seteuid(%d): %s\n", euid, strerror(errno)); if (setegid(egid) == -1) (void) fprintf(stderr, "setegid(%d): %s\n", egid, strerror(errno)); #endif } waiting_for_initial_map = resource.wait_for_map; /* * ICCCM delete_window. */ XtAppAddActions(app_con, actionProcs, XtNumber(actionProcs)); /* * fill in terminal modes */ if (resource.tty_modes) { int n = parse_tty_modes (resource.tty_modes, ttymodelist); if (n < 0) { fprintf (stderr, "%s: bad tty modes \"%s\"\n", ProgramName, resource.tty_modes); } else if (n > 0) { override_tty_modes = 1; } } xterm_name = resource.xterm_name; sunFunctionKeys = resource.sunFunctionKeys; if (strcmp(xterm_name, "-") == 0) xterm_name = "xterm"; if (resource.icon_geometry != NULL) { int scr, junk; int ix, iy; Arg args[2]; for(scr = 0; /* yyuucchh */ XtScreen(toplevel) != ScreenOfDisplay(XtDisplay(toplevel),scr); scr++); args[0].name = XtNiconX; args[1].name = XtNiconY; XGeometry(XtDisplay(toplevel), scr, resource.icon_geometry, "", 0, 0, 0, 0, 0, &ix, &iy, &junk, &junk); args[0].value = (XtArgVal) ix; args[1].value = (XtArgVal) iy; XtSetValues( toplevel, args, 2); } XtSetValues (toplevel, ourTopLevelShellArgs, number_ourTopLevelShellArgs); /* Parse the rest of the command line */ for (argc--, argv++ ; argc > 0 ; argc--, argv++) { if(**argv != '-') Syntax (*argv); switch(argv[0][1]) { case 'h': Help (); /* NOTREACHED */ case 'C': #if defined(TIOCCONS) || defined(SRIOCSREDIR) { struct stat sbuf; /* Must be owner and have read/write permission. xdm cooperates to give the console the right user. */ if ( !stat("/dev/console", &sbuf) && (sbuf.st_uid == getuid()) && !access("/dev/console", R_OK|W_OK)) { Console = TRUE; } else Console = FALSE; } #endif /* TIOCCONS */ continue; case 'S': if (sscanf(*argv + 2, "%c%c%d", passedPty, passedPty+1, &am_slave) != 3) Syntax(*argv); continue; #ifdef DEBUG case 'D': debug = TRUE; continue; #endif /* DEBUG */ case 'e': if (argc <= 1) Syntax (*argv); command_to_exec = ++argv; break; default: Syntax (*argv); } break; } XawSimpleMenuAddGlobalActions (app_con); XtRegisterGrabAction (HandlePopupMenu, True, (ButtonPressMask|ButtonReleaseMask), GrabModeAsync, GrabModeAsync); term = (XtermWidget) XtCreateManagedWidget( "vt100", xtermWidgetClass, toplevel, NULL, 0); /* this causes the initialize method to be called */ screen = &term->screen; if (screen->savelines < 0) screen->savelines = 0; term->flags = 0; if (!screen->jumpscroll) { term->flags |= SMOOTHSCROLL; update_jumpscroll(); } if (term->misc.reverseWrap) { term->flags |= REVERSEWRAP; update_reversewrap(); } if (term->misc.autoWrap) { term->flags |= WRAPAROUND; update_autowrap(); } if (term->misc.re_verse) { term->flags |= REVERSE_VIDEO; update_reversevideo(); } inhibit = 0; #ifdef ALLOWLOGGING if (term->misc.logInhibit) inhibit |= I_LOG; #endif if (term->misc.signalInhibit) inhibit |= I_SIGNAL; if (term->misc.tekInhibit) inhibit |= I_TEK; term->initflags = term->flags; if (term->misc.appcursorDefault) { term->keyboard.flags |= CURSOR_APL; update_appcursor(); } if (term->misc.appkeypadDefault) { term->keyboard.flags |= KYPD_APL; update_appkeypad(); } /* * Set title and icon name if not specified */ if (command_to_exec) { Arg args[2]; if (!resource.title) { if (command_to_exec) { resource.title = base_name (command_to_exec[0]); } /* else not reached */ } if (!resource.icon_name) resource.icon_name = resource.title; XtSetArg (args[0], XtNtitle, resource.title); XtSetArg (args[1], XtNiconName, resource.icon_name); XtSetValues (toplevel, args, 2); } if(inhibit & I_TEK) screen->TekEmu = FALSE; if(screen->TekEmu && !TekInit()) exit(ERROR_INIT); #ifndef MINIX #ifdef DEBUG { /* Set up stderr properly. Opening this log file cannot be done securely by a privileged xterm process (although we try), so the debug feature is disabled by default. */ int i = -1; if(debug) { creat_as (getuid(), getgid(), "xterm.debug.log", 0666); i = open ("xterm.debug.log", O_WRONLY | O_TRUNC, 0666); } if(i >= 0) { #if defined(USE_SYSV_TERMIO) && !defined(SVR4) && !defined(linux) /* SYSV has another pointer which should be part of the ** FILE structure but is actually a seperate array. */ unsigned char *old_bufend; old_bufend = (unsigned char *) _bufend(stderr); #ifdef hpux stderr->__fileH = (i >> 8); stderr->__fileL = i; #else stderr->_file = i; #endif _bufend(stderr) = old_bufend; #else /* USE_SYSV_TERMIO */ #ifndef linux stderr->_file = i; #else setfileno(stderr, i); #endif #endif /* USE_SYSV_TERMIO */ /* mark this file as close on exec */ (void) fcntl(i, F_SETFD, 1); } } #endif /* DEBUG */ #endif /* MINIX */ /* open a terminal for client */ get_terminal (); spawn (); /* Child process is out there, let's catch its termination */ signal (SIGCHLD, reapchild); /* Realize procs have now been executed */ #ifndef AMOEBA Xsocket = ConnectionNumber(screen->display); pty = screen->respond; if (am_slave) { /* Write window id so master end can read and use */ char buf[80]; buf[0] = '\0'; sprintf (buf, "%lx\n", screen->TekEmu ? XtWindow (XtParent (tekWidget)) : XtWindow (XtParent (term))); write (pty, buf, strlen (buf)); } #endif /* !AMOEBA */ #ifdef ALLOWLOGGING if (term->misc.log_on) { StartLog(screen); } #endif screen->inhibit = inhibit; #ifdef AIXV3 /* In AIXV3, xterms started from /dev/console have CLOCAL set. * This means we need to clear CLOCAL so that SIGHUP gets sent * to the slave-pty process when xterm exits. */ { struct termio tio; if(ioctl(pty, TCGETA, &tio) == -1) SysError(ERROR_TIOCGETP); tio.c_cflag &= ~(CLOCAL); if (ioctl (pty, TCSETA, &tio) == -1) SysError(ERROR_TIOCSETP); } #endif #ifndef AMOEBA #ifdef MINIX if ((mode = fcntl(pty, F_GETFD, 0)) == -1) Error(); mode |= FD_ASYNCHIO; if (fcntl(pty, F_SETFD, mode) == -1) Error(); nbio_register(pty); #else /* !MINIX */ #ifdef USE_SYSV_TERMIO if (0 > (mode = fcntl(pty, F_GETFL, 0))) Error(); #ifdef O_NDELAY mode |= O_NDELAY; #else mode |= O_NONBLOCK; #endif /* O_NDELAY */ if (fcntl(pty, F_SETFL, mode)) Error(); #else /* USE_SYSV_TERMIO */ mode = 1; if (ioctl (pty, FIONBIO, (char *)&mode) == -1) SysError (ERROR_FIONBIO); #endif /* USE_SYSV_TERMIO */ #endif /* MINIX */ #endif /* AMOEBA */ pty_mask = 1 << pty; X_mask = 1 << Xsocket; Select_mask = pty_mask | X_mask; max_plus1 = (pty < Xsocket) ? (1 + Xsocket) : (1 + pty); #ifdef DEBUG if (debug) printf ("debugging on\n"); #endif /* DEBUG */ XSetErrorHandler(xerror); XSetIOErrorHandler(xioerror); for( ; ; ) { if(screen->TekEmu) { TekRun(); } else VTRun(); } } char *base_name(name) char *name; { register char *cp; cp = strrchr(name, '/'); return(cp ? cp + 1 : name); } #ifndef AMOEBA /* This function opens up a pty master and stuffs its value into pty. * If it finds one, it returns a value of 0. If it does not find one, * it returns a value of !0. This routine is designed to be re-entrant, * so that if a pty master is found and later, we find that the slave * has problems, we can re-enter this function and get another one. */ get_pty (pty) int *pty; { #if defined(SYSV) && defined(i386) && !defined(SVR4) /* The order of this code is *important*. On SYSV/386 we want to open a /dev/ttyp? first if at all possible. If none are available, then we'll try to open a /dev/pts??? device. The reason for this is because /dev/ttyp? works correctly, where as /dev/pts??? devices have a number of bugs, (won't update screen correcly, will hang -- it more or less works, but you really don't want to use it). Most importantly, for boxes of this nature, one of the major "features" is that you can emulate a 8086 by spawning off a UNIX program on 80386/80486 in v86 mode. In other words, you can spawn off multiple MS-DOS environments. On ISC the program that does this is named "vpix." The catcher is that "vpix" will *not* work with a /dev/pts??? device, will only work with a /dev/ttyp? device. Since we can open either a /dev/ttyp? or a /dev/pts??? device, the flag "IsPts" is set here so that we know which type of device we're dealing with in routine spawn(). That's the reason for the "if (IsPts)" statement in spawn(); we have two different device types which need to be handled differently. */ if (pty_search(pty) == 0) return 0; #endif /* SYSV && i386 && !SVR4 */ #ifdef ATT if ((*pty = open ("/dev/ptmx", O_RDWR)) < 0) { return 1; } #if defined(SVR4) || (defined(i386) && defined(SYSV)) strcpy(ttydev, ptsname(*pty)); #if defined (SYSV) && defined(i386) && !defined(SVR4) IsPts = True; #endif #endif return 0; #else /* ATT else */ #ifdef AIXV3 if ((*pty = open ("/dev/ptc", O_RDWR)) < 0) { return 1; } strcpy(ttydev, ttyname(*pty)); return 0; #endif #if defined(sgi) && OSMAJORVERSION >= 4 { char *tty_name; tty_name = _getpty (pty, O_RDWR, 0622, 0); if (tty_name == 0) return 1; strcpy (ttydev, tty_name); return 0; } #endif #ifdef __convex__ { char *pty_name, *getpty(); while ((pty_name = getpty()) != NULL) { if ((*pty = open (pty_name, O_RDWR)) >= 0) { strcpy(ptydev, pty_name); strcpy(ttydev, pty_name); ttydev[5] = 't'; return 0; } } return 1; } #endif /* __convex__ */ #ifdef USE_GET_PSEUDOTTY return ((*pty = getpseudotty (&ttydev, &ptydev)) >= 0 ? 0 : 1); #else #if (defined(sgi) && OSMAJORVERSION < 4) || (defined(umips) && defined (SYSTYPE_SYSV)) struct stat fstat_buf; *pty = open ("/dev/ptc", O_RDWR); if (*pty < 0 || (fstat (*pty, &fstat_buf)) < 0) { return(1); } sprintf (ttydev, "/dev/ttyq%d", minor(fstat_buf.st_rdev)); #ifndef sgi sprintf (ptydev, "/dev/ptyq%d", minor(fstat_buf.st_rdev)); if ((*tty = open (ttydev, O_RDWR)) < 0) { close (*pty); return(1); } #endif /* !sgi */ /* got one! */ return(0); #else /* sgi or umips */ return pty_search(pty); #endif /* sgi or umips else */ #endif /* USE_GET_PSEUDOTTY else */ #endif /* ATT else */ } /* * Called from get_pty to iterate over likely pseudo terminals * we might allocate. Used on those systems that do not have * a functional interface for allocating a pty. * Returns 0 if found a pty, 1 if fails. */ int pty_search(pty) int *pty; { static int devindex, letter = 0; #ifdef CRAY for (; devindex < 256; devindex++) { sprintf (ttydev, "/dev/ttyp%03d", devindex); sprintf (ptydev, "/dev/pty/%03d", devindex); if ((*pty = open (ptydev, O_RDWR)) >= 0) { /* We need to set things up for our next entry * into this function! */ (void) devindex++; return 0; } } #else /* CRAY */ while (PTYCHAR1[letter]) { ttydev [strlen(ttydev) - 2] = ptydev [strlen(ptydev) - 2] = PTYCHAR1 [letter]; while (PTYCHAR2[devindex]) { ttydev [strlen(ttydev) - 1] = ptydev [strlen(ptydev) - 1] = PTYCHAR2 [devindex]; /* for next time around loop or next entry to this function */ devindex++; if ((*pty = open (ptydev, O_RDWR)) >= 0) { #ifdef sun /* Need to check the process group of the pty. * If it exists, then the slave pty is in use, * and we need to get another one. */ int pgrp_rtn; if (ioctl(*pty, TIOCGPGRP, &pgrp_rtn) == 0 || errno != EIO) { close(*pty); continue; } #endif /* sun */ return 0; } } devindex = 0; (void) letter++; } #endif /* CRAY else */ /* * We were unable to allocate a pty master! Return an error * condition and let our caller terminate cleanly. */ return 1; } #endif /* AMOEBA */ get_terminal () /* * sets up X and initializes the terminal structure except for term.buf.fildes. */ { register TScreen *screen = &term->screen; screen->arrow = make_colored_cursor (XC_left_ptr, screen->mousecolor, screen->mousecolorback); } /* * The only difference in /etc/termcap between 4014 and 4015 is that * the latter has support for switching character sets. We support the * 4015 protocol, but ignore the character switches. Therefore, we * choose 4014 over 4015. * * Features of the 4014 over the 4012: larger (19") screen, 12-bit * graphics addressing (compatible with 4012 10-bit addressing), * special point plot mode, incremental plot mode (not implemented in * later Tektronix terminals), and 4 character sizes. * All of these are supported by xterm. */ static char *tekterm[] = { "tek4014", "tek4015", /* 4014 with APL character set support */ "tek4012", /* 4010 with lower case */ "tek4013", /* 4012 with APL character set support */ "tek4010", /* small screen, upper-case only */ "dumb", 0 }; /* The VT102 is a VT100 with the Advanced Video Option included standard. * It also adds Escape sequences for insert/delete character/line. * The VT220 adds 8-bit character sets, selective erase. * The VT320 adds a 25th status line, terminal state interrogation. * The VT420 has up to 48 lines on the screen. */ static char *vtterm[] = { #ifdef USE_X11TERM "x11term", /* for people who want special term name */ #endif "xterm", /* the prefered name, should be fastest */ "vt102", "vt100", "ansi", "dumb", 0 }; /* ARGSUSED */ SIGNAL_T hungtty(i) int i; { longjmp(env, 1); SIGNAL_RETURN; } #ifdef USE_HANDSHAKE typedef enum { /* c == child, p == parent */ PTY_BAD, /* c->p: can't open pty slave for some reason */ PTY_FATALERROR, /* c->p: we had a fatal error with the pty */ PTY_GOOD, /* c->p: we have a good pty, let's go on */ PTY_NEW, /* p->c: here is a new pty slave, try this */ PTY_NOMORE, /* p->c; no more pty's, terminate */ UTMP_ADDED, /* c->p: utmp entry has been added */ UTMP_TTYSLOT, /* c->p: here is my ttyslot */ PTY_EXEC /* p->c: window has been mapped the first time */ } status_t; typedef struct { status_t status; int error; int fatal_error; int tty_slot; int rows; int cols; char buffer[1024]; } handshake_t; /* HsSysError() * * This routine does the equivalent of a SysError but it handshakes * over the errno and error exit to the master process so that it can * display our error message and exit with our exit code so that the * user can see it. */ void HsSysError(pf, error) int pf; int error; { handshake_t handshake; handshake.status = PTY_FATALERROR; handshake.error = errno; handshake.fatal_error = error; strcpy(handshake.buffer, ttydev); write(pf, (char *) &handshake, sizeof(handshake)); exit(error); } static int pc_pipe[2]; /* this pipe is used for parent to child transfer */ static int cp_pipe[2]; /* this pipe is used for child to parent transfer */ void first_map_occurred () { handshake_t handshake; register TScreen *screen = &term->screen; handshake.status = PTY_EXEC; handshake.rows = screen->max_row; handshake.cols = screen->max_col; write (pc_pipe[1], (char *) &handshake, sizeof(handshake)); close (cp_pipe[0]); close (pc_pipe[1]); waiting_for_initial_map = False; } #else /* * temporary hack to get xterm working on att ptys */ void first_map_occurred () { return; } #define HsSysError(a,b) #endif /* USE_HANDSHAKE else !USE_HANDSHAKE */ #ifndef AMOEBA spawn () /* * Inits pty and tty and forks a login process. * Does not close fd Xsocket. * If slave, the pty named in passedPty is already open for use */ { extern char *SysErrorMsg(); register TScreen *screen = &term->screen; int Xsocket = ConnectionNumber(screen->display); #ifdef USE_HANDSHAKE handshake_t handshake; #else int fds[2]; #endif int tty = -1; int discipline; int done; #ifdef USE_SYSV_TERMIO struct termio tio; struct termio dummy_tio; #ifdef TIOCLSET unsigned lmode; #endif /* TIOCLSET */ #ifdef TIOCSLTC struct ltchars ltc; #endif /* TIOCSLTC */ int one = 1; int zero = 0; int status; #else /* else not USE_SYSV_TERMIO */ unsigned lmode; struct tchars tc; struct ltchars ltc; struct sgttyb sg; #ifdef sony int jmode; struct jtchars jtc; #endif /* sony */ #endif /* USE_SYSV_TERMIO */ char termcap [1024]; char newtc [1024]; char *ptr, *shname, *shname_minus; int i, no_dev_tty = FALSE; #ifdef USE_SYSV_TERMIO char *dev_tty_name = (char *) 0; int fd; /* for /etc/wtmp */ #endif /* USE_SYSV_TERMIO */ char **envnew; /* new environment */ int envsize; /* elements in new environment */ char buf[64]; char *TermName = NULL; int ldisc = 0; #if defined(sun) && !defined(SVR4) #ifdef TIOCSSIZE struct ttysize ts; #endif /* TIOCSSIZE */ #else /* not sun */ #ifdef TIOCSWINSZ struct winsize ws; #endif /* TIOCSWINSZ */ #endif /* sun */ struct passwd *pw = NULL; #ifdef UTMP #ifdef SVR4 struct utmpx utmp; #else struct utmp utmp; #endif #ifdef LASTLOG struct lastlog lastlog; #endif /* LASTLOG */ #endif /* UTMP */ screen->uid = getuid(); screen->gid = getgid(); #ifdef linux bzero(termcap, sizeof termcap); bzero(newtc, sizeof newtc); #endif #ifdef SIGTTOU /* so that TIOCSWINSZ || TIOCSIZE doesn't block */ signal(SIGTTOU,SIG_IGN); #endif if (am_slave) { screen->respond = am_slave; ptydev[strlen(ptydev) - 2] = ttydev[strlen(ttydev) - 2] = passedPty[0]; ptydev[strlen(ptydev) - 1] = ttydev[strlen(ttydev) - 1] = passedPty[1]; setgid (screen->gid); setuid (screen->uid); } else { Bool tty_got_hung = False; /* * Sometimes /dev/tty hangs on open (as in the case of a pty * that has gone away). Simply make up some reasonable * defaults. */ signal(SIGALRM, hungtty); alarm(2); /* alarm(1) might return too soon */ if (! setjmp(env)) { tty = open ("/dev/tty", O_RDWR, 0); alarm(0); } else { tty_got_hung = True; tty = -1; errno = ENXIO; } signal(SIGALRM, SIG_DFL); /* * Check results and ignore current control terminal if * necessary. ENXIO is what is normally returned if there is * no controlling terminal, but some systems (e.g. SunOS 4.0) * seem to return EIO. */ if (tty < 0) { if (tty_got_hung || errno == ENXIO || errno == EIO || errno == ENOTTY) { no_dev_tty = TRUE; #ifdef TIOCSLTC ltc = d_ltc; #endif /* TIOCSLTC */ #ifdef TIOCLSET lmode = d_lmode; #endif /* TIOCLSET */ #ifdef USE_SYSV_TERMIO tio = d_tio; #else /* not USE_SYSV_TERMIO */ sg = d_sg; tc = d_tc; discipline = d_disipline; #ifdef sony jmode = d_jmode; jtc = d_jtc; #endif /* sony */ #endif /* USE_SYSV_TERMIO */ } else { SysError(ERROR_OPDEVTTY); } } else { /* Get a copy of the current terminal's state, * if we can. Some systems (e.g., SVR4 and MacII) * may not have a controlling terminal at this point * if started directly from xdm or xinit, * in which case we just use the defaults as above. */ #ifdef TIOCSLTC if(ioctl(tty, TIOCGLTC, <c) == -1) ltc = d_ltc; #endif /* TIOCSLTC */ #ifdef TIOCLSET if(ioctl(tty, TIOCLGET, &lmode) == -1) lmode = d_lmode; #endif /* TIOCLSET */ #ifdef USE_SYSV_TERMIO if(ioctl(tty, TCGETA, &tio) == -1) tio = d_tio; #else /* not USE_SYSV_TERMIO */ if(ioctl(tty, TIOCGETP, (char *)&sg) == -1) sg = d_sg; if(ioctl(tty, TIOCGETC, (char *)&tc) == -1) tc = d_tc; if(ioctl(tty, TIOCGETD, (char *)&discipline) == -1) discipline = d_disipline; #ifdef sony if(ioctl(tty, TIOCKGET, (char *)&jmode) == -1) jmode = d_jmode; if(ioctl(tty, TIOCKGETC, (char *)&jtc) == -1) jtc = d_jtc; #endif /* sony */ #endif /* USE_SYSV_TERMIO */ #ifdef MINIX /* Editing shells interfere with xterms started in * the background. */ tio = d_tio; #endif close (tty); /* tty is no longer an open fd! */ tty = -1; } #ifdef PUCC_PTYD if(-1 == (screen->respond = openrpty(ttydev, ptydev, (resource.utmpInhibit ? OPTY_NOP : OPTY_LOGIN), getuid(), XDisplayString(screen->display)))) { #else /* not PUCC_PTYD */ if (get_pty (&screen->respond)) { #endif /* PUCC_PTYD */ /* no ptys! */ (void) fprintf(stderr, "%s: no available ptys\n", xterm_name); exit (ERROR_PTYS); #ifdef PUCC_PTYD } #else } /* keep braces balanced for emacs */ #endif #ifdef PUCC_PTYD else { /* * set the fd of the master in a global var so * we can undo all this on exit * */ Ptyfd = screen->respond; } #endif /* PUCC_PTYD */ } /* avoid double MapWindow requests */ XtSetMappedWhenManaged( screen->TekEmu ? XtParent(tekWidget) : XtParent(term), False ); wm_delete_window = XInternAtom(XtDisplay(toplevel), "WM_DELETE_WINDOW", False); if (!screen->TekEmu) VTInit(); /* realize now so know window size for tty driver */ #if defined(TIOCCONS) || defined(SRIOCSREDIR) if (Console) { /* * Inform any running xconsole program * that we are going to steal the console. */ XmuGetHostname (mit_console_name + MIT_CONSOLE_LEN, 255); mit_console = XInternAtom(screen->display, mit_console_name, False); /* the user told us to be the console, so we can use CurrentTime */ XtOwnSelection(screen->TekEmu ? XtParent(tekWidget) : XtParent(term), mit_console, CurrentTime, ConvertConsoleSelection, NULL, NULL); } #endif if(screen->TekEmu) { envnew = tekterm; ptr = newtc; } else { envnew = vtterm; ptr = termcap; } TermName = NULL; if (resource.term_name) { if (tgetent (ptr, resource.term_name) == 1) { TermName = resource.term_name; if (!screen->TekEmu) resize (screen, TermName, termcap, newtc); } else { fprintf (stderr, "%s: invalid termcap entry \"%s\".\n", ProgramName, resource.term_name); } } if (!TermName) { while (*envnew != NULL) { if(tgetent(ptr, *envnew) == 1) { TermName = *envnew; if(!screen->TekEmu) resize(screen, TermName, termcap, newtc); break; } envnew++; } if (TermName == NULL) { fprintf (stderr, "%s: unable to find usable termcap entry.\n", ProgramName); Exit (1); } } #if defined(sun) && !defined(SVR4) #ifdef TIOCSSIZE /* tell tty how big window is */ if(screen->TekEmu) { ts.ts_lines = 38; ts.ts_cols = 81; } else { ts.ts_lines = screen->max_row + 1; ts.ts_cols = screen->max_col + 1; } #endif /* TIOCSSIZE */ #else /* not sun */ #ifdef TIOCSWINSZ /* tell tty how big window is */ if(screen->TekEmu) { ws.ws_row = 38; ws.ws_col = 81; ws.ws_xpixel = TFullWidth(screen); ws.ws_ypixel = TFullHeight(screen); } else { ws.ws_row = screen->max_row + 1; ws.ws_col = screen->max_col + 1; ws.ws_xpixel = FullWidth(screen); ws.ws_ypixel = FullHeight(screen); } #endif /* TIOCSWINSZ */ #endif /* sun */ if (!am_slave) { #ifdef USE_HANDSHAKE if (pipe(pc_pipe) || pipe(cp_pipe)) SysError (ERROR_FORK); #endif if ((screen->pid = fork ()) == -1) SysError (ERROR_FORK); if (screen->pid == 0) { /* * now in child process */ extern char **environ; #if defined(_POSIX_SOURCE) || defined(SVR4) || defined(__convex__) int pgrp = setsid(); #else int pgrp = getpid(); #endif #ifdef USE_SYSV_TERMIO char numbuf[12]; #endif /* USE_SYSV_TERMIO */ #if defined(UTMP) && defined(USE_SYSV_UTMP) char *ptyname; #endif #ifdef USE_USG_PTYS #if defined(SYSV) && defined(i386) && !defined(SVR4) if (IsPts) { /* SYSV386 supports both, which did we open? */ #endif /* SYSV && i386 && !SVR4 */ int ptyfd; setpgrp(); grantpt (screen->respond); unlockpt (screen->respond); if ((ptyfd = open (ptsname(screen->respond), O_RDWR)) < 0) { SysError (1); } if (ioctl (ptyfd, I_PUSH, "ptem") < 0) { SysError (2); } #if !defined(SVR4) && !(defined(SYSV) && defined(i386)) if (!getenv("CONSEM") && ioctl (ptyfd, I_PUSH, "consem") < 0) { SysError (3); } #endif /* !SVR4 */ if (ioctl (ptyfd, I_PUSH, "ldterm") < 0) { SysError (4); } #ifdef SVR4 /* from Sony */ if (ioctl (ptyfd, I_PUSH, "ttcompat") < 0) { SysError (5); } #endif /* SVR4 */ tty = ptyfd; close (screen->respond); #ifdef TIOCSWINSZ /* tell tty how big window is */ if(screen->TekEmu) { ws.ws_row = 24; ws.ws_col = 80; ws.ws_xpixel = TFullWidth(screen); ws.ws_ypixel = TFullHeight(screen); } else { ws.ws_row = screen->max_row + 1; ws.ws_col = screen->max_col + 1; ws.ws_xpixel = FullWidth(screen); ws.ws_ypixel = FullHeight(screen); } #endif #if defined(SYSV) && defined(i386) && !defined(SVR4) } else { /* else pty, not pts */ #endif /* SYSV && i386 && !SVR4 */ #endif /* USE_USG_PTYS */ #ifdef USE_HANDSHAKE /* warning, goes for a long ways */ /* close parent's sides of the pipes */ close (cp_pipe[0]); close (pc_pipe[1]); /* Make sure that our sides of the pipes are not in the * 0, 1, 2 range so that we don't fight with stdin, out * or err. */ if (cp_pipe[1] <= 2) { if ((i = fcntl(cp_pipe[1], F_DUPFD, 3)) >= 0) { (void) close(cp_pipe[1]); cp_pipe[1] = i; } } if (pc_pipe[0] <= 2) { if ((i = fcntl(pc_pipe[0], F_DUPFD, 3)) >= 0) { (void) close(pc_pipe[0]); pc_pipe[0] = i; } } /* we don't need the socket, or the pty master anymore */ close (Xsocket); close (screen->respond); /* Now is the time to set up our process group and * open up the pty slave. */ #ifdef USE_SYSV_PGRP #if defined(CRAY) && (OSMAJORVERSION > 5) (void) setsid(); #else (void) setpgrp(); #endif #endif /* USE_SYSV_PGRP */ while (1) { #ifdef TIOCNOTTY if (!no_dev_tty && (tty = open ("/dev/tty", O_RDWR)) >= 0) { ioctl (tty, TIOCNOTTY, (char *) NULL); close (tty); } #endif /* TIOCNOTTY */ if ((tty = open(ttydev, O_RDWR, 0)) >= 0) { #if defined(CRAY) && defined(TCSETCTTY) /* make /dev/tty work */ ioctl(tty, TCSETCTTY, 0); #endif #ifdef USE_SYSV_PGRP /* We need to make sure that we are acutally * the process group leader for the pty. If * we are, then we should now be able to open * /dev/tty. */ if ((i = open("/dev/tty", O_RDWR, 0)) >= 0) { /* success! */ close(i); break; } #else /* USE_SYSV_PGRP */ break; #endif /* USE_SYSV_PGRP */ } #ifdef TIOCSCTTY ioctl(tty, TIOCSCTTY, 0); #endif /* let our master know that the open failed */ handshake.status = PTY_BAD; handshake.error = errno; strcpy(handshake.buffer, ttydev); write(cp_pipe[1], (char *) &handshake, sizeof(handshake)); /* get reply from parent */ i = read(pc_pipe[0], (char *) &handshake, sizeof(handshake)); if (i <= 0) { /* parent terminated */ exit(1); } if (handshake.status == PTY_NOMORE) { /* No more ptys, let's shutdown. */ exit(1); } /* We have a new pty to try */ free(ttydev); ttydev = malloc((unsigned) (strlen(handshake.buffer) + 1)); strcpy(ttydev, handshake.buffer); } /* use the same tty name that everyone else will use ** (from ttyname) */ if (ptr = ttyname(tty)) { /* it may be bigger */ ttydev = realloc (ttydev, (unsigned) (strlen(ptr) + 1)); (void) strcpy(ttydev, ptr); } #if defined(SYSV) && defined(i386) && !defined(SVR4) } /* end of IsPts else clause */ #endif /* SYSV && i386 && !SVR4 */ #endif /* USE_HANDSHAKE -- from near fork */ #ifdef USE_TTY_GROUP { #include struct group *ttygrp; if (ttygrp = getgrnam("tty")) { /* change ownership of tty to real uid, "tty" gid */ chown (ttydev, screen->uid, ttygrp->gr_gid); chmod (ttydev, 0620); } else { /* change ownership of tty to real group and user id */ chown (ttydev, screen->uid, screen->gid); chmod (ttydev, 0622); } endgrent(); } #else /* else !USE_TTY_GROUP */ /* change ownership of tty to real group and user id */ chown (ttydev, screen->uid, screen->gid); /* change protection of tty */ chmod (ttydev, 0622); #endif /* USE_TTY_GROUP */ /* * set up the tty modes */ { #ifdef USE_SYSV_TERMIO #if defined(umips) || defined(CRAY) || defined(linux) /* If the control tty had its modes screwed around with, eg. by lineedit in the shell, or emacs, etc. then tio will have bad values. Let's just get termio from the new tty and tailor it. */ if (ioctl (tty, TCGETA, &tio) == -1) SysError (ERROR_TIOCGETP); tio.c_lflag |= ECHOE; #endif /* umips */ /* Now is also the time to change the modes of the * child pty. */ /* input: nl->nl, don't ignore cr, cr->nl */ tio.c_iflag &= ~(INLCR|IGNCR); tio.c_iflag |= ICRNL; /* ouput: cr->cr, nl is not return, no delays, ln->cr/nl */ tio.c_oflag &= ~(OCRNL|ONLRET|NLDLY|CRDLY|TABDLY|BSDLY|VTDLY|FFDLY); tio.c_oflag |= ONLCR; #ifdef OPOST tio.c_oflag |= OPOST; #endif /* OPOST */ #ifdef MINIX /* should be ifdef _POSIX_SOURCE */ cfsetispeed(&tio, B9600); cfsetospeed(&tio, B9600); #else /* !MINIX */ #ifdef BAUD_0 /* baud rate is 0 (don't care) */ tio.c_cflag &= ~(CBAUD); #else /* !BAUD_0 */ /* baud rate is 9600 (nice default) */ tio.c_cflag &= ~(CBAUD); tio.c_cflag |= B9600; #endif /* !BAUD_0 */ #endif /* MINIX */ /* enable signals, canonical processing (erase, kill, etc), ** echo */ tio.c_lflag |= ISIG|ICANON|ECHO; /* reset EOL to defalult value */ tio.c_cc[VEOL] = '@' & 0x3f; /* '^@' */ /* certain shells (ksh & csh) change EOF as well */ tio.c_cc[VEOF] = 'D' & 0x3f; /* '^D' */ #define TMODE(ind,var) if (ttymodelist[ind].set) var = ttymodelist[ind].value; if (override_tty_modes) { /* sysv-specific */ TMODE (XTTYMODE_intr, tio.c_cc[VINTR]); TMODE (XTTYMODE_quit, tio.c_cc[VQUIT]); TMODE (XTTYMODE_erase, tio.c_cc[VERASE]); TMODE (XTTYMODE_kill, tio.c_cc[VKILL]); TMODE (XTTYMODE_eof, tio.c_cc[VEOF]); TMODE (XTTYMODE_eol, tio.c_cc[VEOL]); #ifdef VSWTCH TMODE (XTTYMODE_swtch, d_tio.c_cc[VSWTCH]); #endif #ifdef TIOCSLTC /* both SYSV and BSD have ltchars */ TMODE (XTTYMODE_susp, ltc.t_suspc); TMODE (XTTYMODE_dsusp, ltc.t_dsuspc); TMODE (XTTYMODE_rprnt, ltc.t_rprntc); TMODE (XTTYMODE_flush, ltc.t_flushc); TMODE (XTTYMODE_weras, ltc.t_werasc); TMODE (XTTYMODE_lnext, ltc.t_lnextc); #endif } #undef TMODE if (ioctl (tty, TCSETA, &tio) == -1) HsSysError(cp_pipe[1], ERROR_TIOCSETP); #ifdef TIOCSLTC if (ioctl (tty, TIOCSLTC, <c) == -1) HsSysError(cp_pipe[1], ERROR_TIOCSETC); #endif /* TIOCSLTC */ #ifdef TIOCLSET if (ioctl (tty, TIOCLSET, (char *)&lmode) == -1) HsSysError(cp_pipe[1], ERROR_TIOCLSET); #endif /* TIOCLSET */ #else /* USE_SYSV_TERMIO */ sg.sg_flags &= ~(ALLDELAY | XTABS | CBREAK | RAW); sg.sg_flags |= ECHO | CRMOD; /* make sure speed is set on pty so that editors work right*/ sg.sg_ispeed = B9600; sg.sg_ospeed = B9600; /* reset t_brkc to default value */ tc.t_brkc = -1; #ifdef sony if (screen->input_eight_bits) lmode |= LPASS8; else lmode &= ~(LPASS8); jmode &= ~KM_KANJI; #endif /* sony */ #define TMODE(ind,var) if (ttymodelist[ind].set) var = ttymodelist[ind].value; if (override_tty_modes) { TMODE (XTTYMODE_intr, tc.t_intrc); TMODE (XTTYMODE_quit, tc.t_quitc); TMODE (XTTYMODE_erase, sg.sg_erase); TMODE (XTTYMODE_kill, sg.sg_kill); TMODE (XTTYMODE_eof, tc.t_eofc); TMODE (XTTYMODE_start, tc.t_startc); TMODE (XTTYMODE_stop, tc.t_stopc); TMODE (XTTYMODE_brk, tc.t_brkc); /* both SYSV and BSD have ltchars */ TMODE (XTTYMODE_susp, ltc.t_suspc); TMODE (XTTYMODE_dsusp, ltc.t_dsuspc); TMODE (XTTYMODE_rprnt, ltc.t_rprntc); TMODE (XTTYMODE_flush, ltc.t_flushc); TMODE (XTTYMODE_weras, ltc.t_werasc); TMODE (XTTYMODE_lnext, ltc.t_lnextc); } #undef TMODE if (ioctl (tty, TIOCSETP, (char *)&sg) == -1) HsSysError (cp_pipe[1], ERROR_TIOCSETP); if (ioctl (tty, TIOCSETC, (char *)&tc) == -1) HsSysError (cp_pipe[1], ERROR_TIOCSETC); if (ioctl (tty, TIOCSETD, (char *)&discipline) == -1) HsSysError (cp_pipe[1], ERROR_TIOCSETD); if (ioctl (tty, TIOCSLTC, (char *)<c) == -1) HsSysError (cp_pipe[1], ERROR_TIOCSLTC); if (ioctl (tty, TIOCLSET, (char *)&lmode) == -1) HsSysError (cp_pipe[1], ERROR_TIOCLSET); #ifdef sony if (ioctl (tty, TIOCKSET, (char *)&jmode) == -1) HsSysError (cp_pipe[1], ERROR_TIOCKSET); if (ioctl (tty, TIOCKSETC, (char *)&jtc) == -1) HsSysError (cp_pipe[1], ERROR_TIOCKSETC); #endif /* sony */ #endif /* !USE_SYSV_TERMIO */ #if defined(TIOCCONS) || defined(SRIOCSREDIR) if (Console) { #ifdef TIOCCONS int on = 1; if (ioctl (tty, TIOCCONS, (char *)&on) == -1) fprintf(stderr, "%s: cannot open console\n", xterm_name); #endif #ifdef SRIOCSREDIR int fd = open("/dev/console",O_RDWR); if (fd == -1 || ioctl (fd, SRIOCSREDIR, tty) == -1) fprintf(stderr, "%s: cannot open console\n", xterm_name); (void) close (fd); #endif } #endif /* TIOCCONS */ } signal (SIGCHLD, SIG_DFL); #ifdef USE_SYSV_SIGHUP /* watch out for extra shells (I don't understand either) */ signal (SIGHUP, SIG_DFL); #else signal (SIGHUP, SIG_IGN); #endif /* restore various signals to their defaults */ signal (SIGINT, SIG_DFL); signal (SIGQUIT, SIG_DFL); signal (SIGTERM, SIG_DFL); /* copy the environment before Setenving */ for (i = 0 ; environ [i] != NULL ; i++) ; /* compute number of Setenv() calls below */ envsize = 1; /* (NULL terminating entry) */ envsize += 3; /* TERM, WINDOWID, DISPLAY */ #ifdef UTMP envsize += 1; /* LOGNAME */ #endif /* UTMP */ #ifdef USE_SYSV_ENVVARS #ifndef TIOCSWINSZ /* window size not stored in driver? */ envsize += 2; /* COLUMNS, LINES */ #endif /* TIOCSWINSZ */ #ifdef UTMP envsize += 2; /* HOME, SHELL */ #endif /* UTMP */ #else /* USE_SYSV_ENVVARS */ envsize += 1; /* TERMCAP */ #endif /* USE_SYSV_ENVVARS */ envnew = (char **) calloc ((unsigned) i + envsize, sizeof(char *)); memmove( (char *)envnew, (char *)environ, i * sizeof(char *)); environ = envnew; Setenv ("TERM=", TermName); if(!TermName) *newtc = 0; sprintf (buf, "%lu", screen->TekEmu ? ((unsigned long) XtWindow (XtParent(tekWidget))) : ((unsigned long) XtWindow (XtParent(term)))); Setenv ("WINDOWID=", buf); /* put the display into the environment of the shell*/ Setenv ("DISPLAY=", XDisplayString (screen->display)); signal(SIGTERM, SIG_DFL); #ifndef AMOEBA /* this is the time to go and set up stdin, out, and err */ { #if defined(CRAY) && (OSMAJORVERSION >= 6) (void) close(tty); (void) close(0); if (open ("/dev/tty", O_RDWR)) { fprintf(stderr, "cannot open /dev/tty\n"); exit(1); } (void) close(1); (void) close(2); dup(0); dup(0); #else /* dup the tty */ for (i = 0; i <= 2; i++) if (i != tty) { (void) close(i); (void) dup(tty); } #ifndef ATT /* and close the tty */ if (tty > 2) (void) close(tty); #endif #endif /* CRAY */ } #ifndef USE_SYSV_PGRP #ifdef TIOCSCTTY setsid(); ioctl(0, TIOCSCTTY, 0); #endif ioctl(0, TIOCSPGRP, (char *)&pgrp); setpgrp(0,0); close(open(ttydev, O_WRONLY, 0)); setpgrp (0, pgrp); #endif /* !USE_SYSV_PGRP */ #endif /* AMOEBA */ #ifdef UTMP pw = getpwuid(screen->uid); if (pw && pw->pw_name) Setenv ("LOGNAME=", pw->pw_name); /* for POSIX */ #ifdef USE_SYSV_UTMP /* Set up our utmp entry now. We need to do it here ** for the following reasons: ** - It needs to have our correct process id (for ** login). ** - If our parent was to set it after the fork(), ** it might make it out before we need it. ** - We need to do it before we go and change our ** user and group id's. */ #ifdef CRAY #define PTYCHARLEN 4 #else #define PTYCHARLEN 2 #endif (void) setutent (); /* set up entry to search for */ ptyname = ttydev; (void) strncpy(utmp.ut_id,ptyname + strlen(ptyname)-PTYCHARLEN, sizeof (utmp.ut_id)); utmp.ut_type = DEAD_PROCESS; /* position to entry in utmp file */ (void) getutid(&utmp); /* set up the new entry */ utmp.ut_type = USER_PROCESS; #ifndef linux utmp.ut_exit.e_exit = 2; #endif (void) strncpy(utmp.ut_user, (pw && pw->pw_name) ? pw->pw_name : "????", sizeof(utmp.ut_user)); (void)strncpy(utmp.ut_id, ptyname + strlen(ptyname)-PTYCHARLEN, sizeof(utmp.ut_id)); (void) strncpy (utmp.ut_line, ptyname + strlen("/dev/"), sizeof (utmp.ut_line)); #ifdef HAS_UTMP_UT_HOST (void) strncpy(buf, DisplayString(screen->display), sizeof(buf)); #ifndef linux { char *disfin = strrchr(buf, ':'); if (disfin) *disfin = '\0'; } #endif (void) strncpy(utmp.ut_host, buf, sizeof(utmp.ut_host)); #endif (void) strncpy(utmp.ut_name, pw->pw_name, sizeof(utmp.ut_name)); utmp.ut_pid = getpid(); #ifdef SVR4 utmp.ut_session = getsid(0); utmp.ut_xtime = time ((Time_t *) 0); utmp.ut_tv.tv_usec = 0; #else utmp.ut_time = time ((Time_t *) 0); #endif /* write out the entry */ if (!resource.utmpInhibit) (void) pututline(&utmp); #ifdef WTMP #ifdef SVR4 if (term->misc.login_shell) updwtmpx(WTMPX_FILE, &utmp); #else if (term->misc.login_shell && (i = open(etc_wtmp, O_WRONLY|O_APPEND)) >= 0) { write(i, (char *)&utmp, sizeof(struct utmp)); close(i); } #endif #endif /* close the file */ (void) endutent(); #else /* USE_SYSV_UTMP */ /* We can now get our ttyslot! We can also set the initial * UTMP entry. */ tslot = ttyslot(); added_utmp_entry = False; { if (pw && !resource.utmpInhibit && (i = open(etc_utmp, O_WRONLY)) >= 0) { bzero((char *)&utmp, sizeof(struct utmp)); (void) strncpy(utmp.ut_line, ttydev + strlen("/dev/"), sizeof(utmp.ut_line)); (void) strncpy(utmp.ut_name, pw->pw_name, sizeof(utmp.ut_name)); #ifdef MINIX utmp.ut_pid = getpid(); utmp.ut_type = USER_PROCESS; #endif /* MINIX */ #ifdef HAS_UTMP_UT_HOST (void) strncpy(utmp.ut_host, XDisplayString (screen->display), sizeof(utmp.ut_host)); #endif time(&utmp.ut_time); lseek(i, (long)(tslot * sizeof(struct utmp)), 0); write(i, (char *)&utmp, sizeof(struct utmp)); close(i); added_utmp_entry = True; #ifdef WTMP if (term->misc.login_shell && (i = open(etc_wtmp, O_WRONLY|O_APPEND)) >= 0) { int status; status = write(i, (char *)&utmp, sizeof(struct utmp)); status = close(i); } #endif /* WTMP */ #ifdef MNX_LASTLOG if (term->misc.login_shell && (i = open(_U_LASTLOG, O_WRONLY)) >= 0) { lseek(i, (long)(screen->uid * sizeof (struct utmp)), 0); write(i, (char *)&utmp, sizeof (struct utmp)); close(i); } #endif /* MNX_LASTLOG */ } else tslot = -tslot; } /* Let's pass our ttyslot to our parent so that it can * clean up after us. */ #ifdef USE_HANDSHAKE handshake.tty_slot = tslot; #endif /* USE_HANDSHAKE */ #endif /* USE_SYSV_UTMP */ #ifdef LASTLOG if (term->misc.login_shell && (i = open(etc_lastlog, O_WRONLY)) >= 0) { bzero((char *)&lastlog, sizeof (struct lastlog)); (void) strncpy(lastlog.ll_line, ttydev + sizeof("/dev"), sizeof (lastlog.ll_line)); (void) strncpy(lastlog.ll_host, XDisplayString (screen->display), sizeof (lastlog.ll_host)); time(&lastlog.ll_time); lseek(i, (long)(screen->uid * sizeof (struct lastlog)), 0); write(i, (char *)&lastlog, sizeof (struct lastlog)); close(i); } #endif /* LASTLOG */ #ifdef USE_HANDSHAKE /* Let our parent know that we set up our utmp entry * so that it can clean up after us. */ handshake.status = UTMP_ADDED; handshake.error = 0; strcpy(handshake.buffer, ttydev); (void)write(cp_pipe[1], (char *)&handshake, sizeof(handshake)); #endif /* USE_HANDSHAKE */ #endif/* UTMP */ (void) setgid (screen->gid); #ifdef HAS_BSD_GROUPS if (geteuid() == 0 && pw) initgroups (pw->pw_name, pw->pw_gid); #endif (void) setuid (screen->uid); #ifdef USE_HANDSHAKE /* mark the pipes as close on exec */ fcntl(cp_pipe[1], F_SETFD, 1); fcntl(pc_pipe[0], F_SETFD, 1); /* We are at the point where we are going to * exec our shell (or whatever). Let our parent * know we arrived safely. */ handshake.status = PTY_GOOD; handshake.error = 0; (void)strcpy(handshake.buffer, ttydev); (void)write(cp_pipe[1], (char *)&handshake, sizeof(handshake)); if (waiting_for_initial_map) { i = read (pc_pipe[0], (char *) &handshake, sizeof(handshake)); if (i != sizeof(handshake) || handshake.status != PTY_EXEC) { /* some very bad problem occurred */ exit (ERROR_PTY_EXEC); } if(handshake.rows > 0 && handshake.cols > 0) { screen->max_row = handshake.rows; screen->max_col = handshake.cols; #if defined(sun) && !defined(SVR4) #ifdef TIOCSSIZE ts.ts_lines = screen->max_row + 1; ts.ts_cols = screen->max_col + 1; #endif /* TIOCSSIZE */ #else /* !sun */ #ifdef TIOCSWINSZ ws.ws_row = screen->max_row + 1; ws.ws_col = screen->max_col + 1; ws.ws_xpixel = FullWidth(screen); ws.ws_ypixel = FullHeight(screen); #endif /* TIOCSWINSZ */ #endif /* sun else !sun */ } } #endif /* USE_HANDSHAKE */ #ifdef USE_SYSV_ENVVARS sprintf (numbuf, "%d", screen->max_col + 1); Setenv("COLUMNS=", numbuf); sprintf (numbuf, "%d", screen->max_row + 1); Setenv("LINES=", numbuf); #ifdef UTMP if (pw) { /* SVR4 doesn't provide these */ if (!getenv("HOME")) Setenv("HOME=", pw->pw_dir); if (!getenv("SHELL")) Setenv("SHELL=", pw->pw_shell); } #endif /* UTMP */ #else /* USE_SYSV_ENVVAR */ if(!screen->TekEmu) { strcpy (termcap, newtc); resize (screen, TermName, termcap, newtc); } if (term->misc.titeInhibit) { remove_termcap_entry (newtc, ":ti="); remove_termcap_entry (newtc, ":te="); } /* * work around broken termcap entries */ if (resource.useInsertMode) { remove_termcap_entry (newtc, ":ic="); /* don't get duplicates */ remove_termcap_entry (newtc, ":im="); remove_termcap_entry (newtc, ":ei="); remove_termcap_entry (newtc, ":mi"); strcat (newtc, ":im=\\E[4h:ei=\\E[4l:mi:"); } Setenv ("TERMCAP=", newtc); #endif /* USE_SYSV_ENVVAR */ /* need to reset after all the ioctl bashing we did above */ #if defined(sun) && !defined(SVR4) #ifdef TIOCSSIZE ioctl (0, TIOCSSIZE, &ts); #endif /* TIOCSSIZE */ #else /* not sun */ #ifdef TIOCSWINSZ ioctl (0, TIOCSWINSZ, (char *)&ws); #endif /* TIOCSWINSZ */ #endif /* sun */ signal(SIGHUP, SIG_DFL); if (command_to_exec) { execvp(*command_to_exec, command_to_exec); /* print error message on screen */ fprintf(stderr, "%s: Can't execvp %s\n", xterm_name, *command_to_exec); } #ifdef USE_SYSV_SIGHUP /* fix pts sh hanging around */ signal (SIGHUP, SIG_DFL); #endif #ifdef UTMP if(((ptr = getenv("SHELL")) == NULL || *ptr == 0) && ((pw == NULL && (pw = getpwuid(screen->uid)) == NULL) || *(ptr = pw->pw_shell) == 0)) #else /* UTMP */ if(((ptr = getenv("SHELL")) == NULL || *ptr == 0) && ((pw = getpwuid(screen->uid)) == NULL || *(ptr = pw->pw_shell) == 0)) #endif /* UTMP */ ptr = "/bin/sh"; if(shname = strrchr(ptr, '/')) shname++; else shname = ptr; shname_minus = malloc(strlen(shname) + 2); (void) strcpy(shname_minus, "-"); (void) strcat(shname_minus, shname); #ifndef USE_SYSV_TERMIO ldisc = XStrCmp("csh", shname + strlen(shname) - 3) == 0 ? NTTYDISC : 0; ioctl(0, TIOCSETD, (char *)&ldisc); #endif /* !USE_SYSV_TERMIO */ #ifdef USE_LOGIN_DASH_P if (term->misc.login_shell && pw && added_utmp_entry) execl (bin_login, "login", "-p", "-f", pw->pw_name, 0); #endif execlp (ptr, (term->misc.login_shell ? shname_minus : shname), 0); /* Exec failed. */ fprintf (stderr, "%s: Could not exec %s!\n", xterm_name, ptr); (void) sleep(5); exit(ERROR_EXEC); } /* end if in child after fork */ #ifdef USE_HANDSHAKE /* Parent process. Let's handle handshaked requests to our * child process. */ /* close childs's sides of the pipes */ close (cp_pipe[1]); close (pc_pipe[0]); for (done = 0; !done; ) { if (read(cp_pipe[0], (char *) &handshake, sizeof(handshake)) <= 0) { /* Our child is done talking to us. If it terminated * due to an error, we will catch the death of child * and clean up. */ break; } switch(handshake.status) { case PTY_GOOD: /* Success! Let's free up resources and * continue. */ done = 1; break; case PTY_BAD: /* The open of the pty failed! Let's get * another one. */ (void) close(screen->respond); if (get_pty(&screen->respond)) { /* no more ptys! */ (void) fprintf(stderr, "%s: child process can find no available ptys\n", xterm_name); handshake.status = PTY_NOMORE; write(pc_pipe[1], (char *) &handshake, sizeof(handshake)); exit (ERROR_PTYS); } handshake.status = PTY_NEW; (void) strcpy(handshake.buffer, ttydev); write(pc_pipe[1], (char *) &handshake, sizeof(handshake)); break; case PTY_FATALERROR: errno = handshake.error; close(cp_pipe[0]); close(pc_pipe[1]); SysError(handshake.fatal_error); case UTMP_ADDED: /* The utmp entry was set by our slave. Remember * this so that we can reset it later. */ added_utmp_entry = True; #ifndef USE_SYSV_UTMP tslot = handshake.tty_slot; #endif /* USE_SYSV_UTMP */ free(ttydev); ttydev = malloc((unsigned) strlen(handshake.buffer) + 1); strcpy(ttydev, handshake.buffer); break; default: fprintf(stderr, "%s: unexpected handshake status %d\n", xterm_name, handshake.status); } } /* close our sides of the pipes */ if (!waiting_for_initial_map) { close (cp_pipe[0]); close (pc_pipe[1]); } #endif /* USE_HANDSHAKE */ } /* end if no slave */ /* * still in parent (xterm process) */ #ifdef USE_SYSV_SIGHUP /* hung sh problem? */ signal (SIGHUP, SIG_DFL); #else signal (SIGHUP,SIG_IGN); #endif /* * Unfortunately, System V seems to have trouble divorcing the child process * from the process group of xterm. This is a problem because hitting the * INTR or QUIT characters on the keyboard will cause xterm to go away if we * don't ignore the signals. This is annoying. */ #if defined(USE_SYSV_SIGNALS) && !defined(SIGTSTP) signal (SIGINT, SIG_IGN); #ifndef SYSV /* hung shell problem */ signal (SIGQUIT, SIG_IGN); #endif signal (SIGTERM, SIG_IGN); #else /* else is bsd or has job control */ #ifdef SYSV /* if we were spawned by a jobcontrol smart shell (like ksh or csh), * then our pgrp and pid will be the same. If we were spawned by * a jobcontrol dumb shell (like /bin/sh), then we will be in our * parent's pgrp, and we must ignore keyboard signals, or we will * tank on everything. */ if (getpid() == getpgrp()) { (void) signal(SIGINT, Exit); (void) signal(SIGQUIT, Exit); (void) signal(SIGTERM, Exit); } else { (void) signal(SIGINT, SIG_IGN); (void) signal(SIGQUIT, SIG_IGN); (void) signal(SIGTERM, SIG_IGN); } (void) signal(SIGPIPE, Exit); #else /* SYSV */ signal (SIGINT, Exit); signal (SIGQUIT, Exit); signal (SIGTERM, Exit); signal (SIGPIPE, Exit); #endif /* SYSV */ #endif /* USE_SYSV_SIGNALS and not SIGTSTP */ return 0; } /* end spawn */ #else /* AMOEBA */ /* manifest constants */ #define TTY_NTHREADS 2 #define TTY_INQSIZE 2000 #define TTY_OUTQSIZE 1000 #define TTY_THREAD_STACKSIZE 4096 #define XWATCHDOG_THREAD_SIZE 4096 /* acceptable defaults */ #define DEF_HOME "/home" #define DEF_SHELL "/bin/sh" #define DEF_PATH "/bin:/usr/bin:/profile/util" extern capability ttycap; extern char **environ; extern struct caplist *capv; /* * Set capability. * I made this a function since it cannot be a macro. */ void setcap(capvec, n, name, cap) struct caplist *capvec; int n; char *name; capability *cap; { capvec[n].cl_name = name; capvec[n].cl_cap = cap; } /* * Find process descriptor for specified program, * necessarily running down the user's PATH. */ errstat find_program(program, programcap) char *program; capability *programcap; { errstat err; if ((err = name_lookup(program, programcap)) != STD_OK) { char *path, *name; char programpath[1024]; if ((path = getenv("PATH")) == NULL) path = DEF_PATH; if ((name = strrchr(program, '/')) != NULL) name++; else name = program; do { register char *p = programpath; register char *n = name; char *c1 = path; while (*path && *path != ':') *p++ = *path++; if (path != c1) *p++ = '/'; if (*path) path++; while (*n) *p++ = *n++; *p = '\0'; if ((err = name_lookup(programpath, programcap)) == STD_OK) break; } while (*path); } return err; } /* Semaphore on which the main thread blocks until it can do something * useful (which is made known by a call to WakeupMainThread()). */ static semaphore main_sema; void InitMainThread() { sema_init(&main_sema, 0); } void WakeupMainThread() { sema_up(&main_sema); } /* * Spawn off tty threads and fork the login process. */ spawn() { register TScreen *screen = &term->screen; char *TermName = NULL; char termcap[1024]; char newtc[1024]; char **envnew; /* new environment */ int envsize; /* elements in new environment */ char *ptr; int i, n, ncap; errstat err; struct caplist *cl; char buf[64], numbuf[12]; struct caplist *capvnew; int ttythread(); int xwatchdogthread(); screen->pid = 2; /* at least > 1 */ screen->uid = getuid(); screen->gid = getgid(); screen->respond = OPEN_MAX + 1; screen->tty_inq = cb_alloc(TTY_INQSIZE); screen->tty_outq = cb_alloc(TTY_OUTQSIZE); InitMainThread(); if (!thread_newthread(xwatchdogthread, XWATCHDOG_THREAD_SIZE, 0, 0)) { fprintf(stderr, "%s: unable to start tty thread.\n", ProgramName); Exit(1); } /* * Start tty threads. Ordinarily two should suffice, one for standard * input and one for standard (error) output. */ ttyinit((char *) NULL); for (i = 0; i < TTY_NTHREADS; i++) { if (!thread_newthread(ttythread, TTY_THREAD_STACKSIZE, 0, 0)) { fprintf(stderr, "%s: unable to start tty thread.\n", ProgramName); Exit(1); } } /* avoid double MapWindow requests */ XtSetMappedWhenManaged( screen->TekEmu ? XtParent(tekWidget) : XtParent(term), False ); wm_delete_window = XInternAtom(XtDisplay(toplevel), "WM_DELETE_WINDOW", False); /* realize now so know window size for tty driver */ if (!screen->TekEmu) VTInit(); if (screen->TekEmu) { envnew = tekterm; ptr = newtc; } else { envnew = vtterm; ptr = termcap; } TermName = NULL; if (resource.term_name) { if (tgetent (ptr, resource.term_name) == 1) { TermName = resource.term_name; if (!screen->TekEmu) resize (screen, TermName, termcap, newtc); } else { fprintf (stderr, "%s: invalid termcap entry \"%s\".\n", ProgramName, resource.term_name); } } if (!TermName) { while (*envnew != NULL) { if(tgetent(ptr, *envnew) == 1) { TermName = *envnew; if(!screen->TekEmu) resize(screen, TermName, termcap, newtc); break; } envnew++; } if (TermName == NULL) { fprintf (stderr, "%s: unable to find usable termcap entry.\n", ProgramName); Exit (1); } } /* * Setup new capability environment. The whole point of the game is * to redirect the shell's stdin/stdout/stderr and tty to our own * tty server instead of the initial one. */ for (ncap = 4, cl = capv; cl->cl_name != (char *)NULL; cl++) if (strcmp("STDIN", cl->cl_name) && strcmp("STDOUT", cl->cl_name) && strcmp("STDERR", cl->cl_name) && strcmp("TTY", cl->cl_name)) ncap++; capvnew = (struct caplist *) calloc((unsigned) ncap + 1, sizeof(struct caplist)); setcap(capvnew, 0, "STDIN", &ttycap); setcap(capvnew, 1, "STDOUT", &ttycap); setcap(capvnew, 2, "STDERR", &ttycap); setcap(capvnew, 3, "TTY", &ttycap); for (n = 4, cl = capv; cl->cl_name != (char *) NULL; cl++) { if (strcmp("STDIN", cl->cl_name) && strcmp("STDOUT", cl->cl_name) && strcmp("STDERR", cl->cl_name) && strcmp("TTY", cl->cl_name)) setcap(capvnew, n++, cl->cl_name, cl->cl_cap); } setcap(capvnew, ncap, (char *)NULL, (capability *)NULL); if (n != ncap) { fprintf(stderr, "%s: bad capability set.\n", ProgramName); Exit(1); } /* * Setup environment variables. We add some extra ones to denote * window id, terminal type, display name, termcap entry, and some * standard one (which are required by every shell) HOME and SHELL. * Note that the two shell variables COLUMNS and LINES are not needed * under Amoeba since the tty server provides an RPC to query the * window sizes. */ /* copy the environment before Setenving */ for (i = 0 ; environ[i] != NULL ; i++) ; /* compute number of Setenv() calls below */ envsize = 1; /* (NULL terminating entry) */ envsize += 3; /* TERM, WINDOWID, DISPLAY */ envsize += 2; /* HOME, SHELL */ envsize += 1; /* TERMCAP */ envnew = (char **) calloc ((unsigned) i + envsize, sizeof(char *)); bcopy((char *)environ, (char *)envnew, i * sizeof(char *)); environ = envnew; Setenv ("TERM=", TermName); if(!TermName) *newtc = 0; sprintf (buf, "%lu", screen->TekEmu ? ((unsigned long) XtWindow (XtParent(tekWidget))) : ((unsigned long) XtWindow (XtParent(term)))); Setenv ("WINDOWID=", buf); /* put the display into the environment of the shell*/ Setenv ("DISPLAY=", XDisplayString (screen->display)); /* always provide a HOME and SHELL definition */ if (!getenv("HOME")) Setenv("HOME=", DEF_HOME); if (!getenv("SHELL")) Setenv("SHELL=", DEF_SHELL); if(!screen->TekEmu) { strcpy (termcap, newtc); resize (screen, TermName, termcap, newtc); } if (term->misc.titeInhibit) { remove_termcap_entry (newtc, ":ti="); remove_termcap_entry (newtc, ":te="); } /* work around broken termcap entries */ if (resource.useInsertMode) { remove_termcap_entry (newtc, ":ic="); /* don't get duplicates */ remove_termcap_entry (newtc, ":im="); remove_termcap_entry (newtc, ":ei="); remove_termcap_entry (newtc, ":mi"); strcat (newtc, ":im=\\E[4h:ei=\\E[4l:mi:"); } Setenv ("TERMCAP=", newtc); /* * Execute specified program or shell. Use find_program to * simulate the same behaviour as the original execvp. */ if (command_to_exec) { capability programcap; if (find_program(*command_to_exec, &programcap) != STD_OK) { fprintf(stderr, "%s: Could not find %s!\n", xterm_name, *command_to_exec); exit(ERROR_EXEC); } err = exec_file(&programcap, NILCAP, &ttycap, 0, command_to_exec, envnew, capvnew, &screen->proccap); if (err != STD_OK) { fprintf(stderr, "%s: Could not exec %s!\n", xterm_name, *command_to_exec); exit(ERROR_EXEC); } } else { char *shell, *shname, *shname_minus; capability shellcap; char *argvec[2]; if ((shell = getenv("SHELL")) == NULL) shell = DEF_SHELL; /* "cannot happen" */ if ((shname = strrchr(shell, '/')) != NULL) shname++; else shname = shell; shname_minus = malloc(strlen(shname) + 2); (void) strcpy(shname_minus, "-"); (void) strcat(shname_minus, shname); argvec[0] = term->misc.login_shell ? shname_minus : shname; argvec[1] = NULL; if (find_program(shell, &shellcap) != STD_OK) { fprintf(stderr, "%s: Could not find %s!\n", xterm_name, shell); exit(ERROR_EXEC); } err = exec_file(&shellcap, NILCAP, &ttycap, 0, argvec, envnew, capvnew, &screen->proccap); if (err != STD_OK) { fprintf(stderr, "%s: Could not exec %s!\n", xterm_name, shell); exit(ERROR_EXEC); } free(shname_minus); } free(capvnew); signal(SIGINT, SIG_IGN); signal(SIGQUIT, SIG_IGN); signal(SIGTERM, SIG_IGN); signal(SIGPIPE, Exit); } extern char *SysErrorMsg(); /* * X watch-dog thread. This thread unblocks the main * thread when there's an X event. */ xwatchdogthread() { register TScreen *screen = &term->screen; for (;;) { int n = _X11TransAmSelect(ConnectionNumber(screen->display), 10); if (n < 0 && errno != EINTR) { fprintf(stderr, "%s: X watch dog: Xselect failed: %s\n", ProgramName, SysErrorMsg(errno)); Cleanup(1); } else if (n > 0) WakeupMainThread(); threadswitch(); } } void SleepMainThread() { int remaining; /* Wait for at least one event */ sema_down(&main_sema); /* Since the main thread will continue handling all outstanding events * shortly, we can ignore the remaining wakeups that were done. */ if ((remaining = sema_level(&main_sema)) > 1) { sema_mdown(&main_sema, remaining); } } #endif /* AMOEBA */ SIGNAL_T Exit(n) int n; { register TScreen *screen = &term->screen; int pty = term->screen.respond; /* file descriptor of pty */ #ifdef UTMP #ifdef USE_SYSV_UTMP #ifdef SVR4 struct utmpx utmp; struct utmpx *utptr; #else struct utmp utmp; struct utmp *utptr; #endif char *ptyname; #if defined(WTMP) && !defined(SVR4) int fd; /* for /etc/wtmp */ int i; #endif #ifdef PUCC_PTYD closepty(ttydev, ptydev, (resource.utmpInhibit ? OPTY_NOP : OPTY_LOGIN), Ptyfd); #endif /* PUCC_PTYD */ /* cleanup the utmp entry we forged earlier */ if (!resource.utmpInhibit #ifdef USE_HANDSHAKE /* without handshake, no way to know */ && added_utmp_entry #endif /* USE_HANDSHAKE */ ) { ptyname = ttydev; utmp.ut_type = USER_PROCESS; (void) strncpy(utmp.ut_id, ptyname + strlen(ptyname) - PTYCHARLEN, sizeof(utmp.ut_id)); (void) setutent(); utptr = getutid(&utmp); /* write it out only if it exists, and the pid's match */ if (utptr && (utptr->ut_pid == screen->pid)) { utptr->ut_type = DEAD_PROCESS; #ifdef SVR4 utmp.ut_session = getsid(0); utmp.ut_xtime = time ((Time_t *) 0); utmp.ut_tv.tv_usec = 0; #else utptr->ut_time = time((Time_t *) 0); #endif (void) pututline(utptr); #ifdef WTMP #ifdef SVR4 updwtmpx(WTMPX_FILE, &utmp); #else /* set wtmp entry if wtmp file exists */ if ((fd = open(etc_wtmp, O_WRONLY | O_APPEND)) >= 0) { i = write(fd, utptr, sizeof(utmp)); i = close(fd); } #endif #endif } (void) endutent(); } #else /* not USE_SYSV_UTMP */ register int wfd; register int i; struct utmp utmp; if (!resource.utmpInhibit && added_utmp_entry && (!am_slave && tslot > 0 && (wfd = open(etc_utmp, O_WRONLY)) >= 0)){ bzero((char *)&utmp, sizeof(struct utmp)); lseek(wfd, (long)(tslot * sizeof(struct utmp)), 0); write(wfd, (char *)&utmp, sizeof(struct utmp)); close(wfd); #ifdef WTMP if (term->misc.login_shell && (wfd = open(etc_wtmp, O_WRONLY | O_APPEND)) >= 0) { (void) strncpy(utmp.ut_line, ttydev + sizeof("/dev"), sizeof (utmp.ut_line)); time(&utmp.ut_time); i = write(wfd, (char *)&utmp, sizeof(struct utmp)); i = close(wfd); } #endif /* WTMP */ } #endif /* USE_SYSV_UTMP */ #endif /* UTMP */ #ifndef AMOEBA close(pty); /* close explicitly to avoid race with slave side */ #endif #ifdef ALLOWLOGGING if(screen->logging) CloseLog(screen); #endif #ifndef AMOEBA if (!am_slave) { /* restore ownership of tty and pty */ chown (ttydev, 0, 0); #ifndef sgi chown (ptydev, 0, 0); #endif /* !sgi */ /* restore modes of tty and pty */ chmod (ttydev, 0666); #ifndef sgi chmod (ptydev, 0666); #endif /* !sgi */ } #endif /* AMOEBA */ exit(n); SIGNAL_RETURN; } /* ARGSUSED */ resize(screen, TermName, oldtc, newtc) TScreen *screen; char *TermName; register char *oldtc, *newtc; { #ifndef USE_SYSV_ENVVARS register char *ptr1, *ptr2; register int i; register int li_first = 0; register char *temp; if ((ptr1 = strindex (oldtc, "co#")) == NULL){ strcat (oldtc, "co#80:"); ptr1 = strindex (oldtc, "co#"); } if ((ptr2 = strindex (oldtc, "li#")) == NULL){ strcat (oldtc, "li#24:"); ptr2 = strindex (oldtc, "li#"); } if(ptr1 > ptr2) { li_first++; temp = ptr1; ptr1 = ptr2; ptr2 = temp; } ptr1 += 3; ptr2 += 3; strncpy (newtc, oldtc, i = ptr1 - oldtc); newtc += i; sprintf (newtc, "%d", li_first ? screen->max_row + 1 : screen->max_col + 1); newtc += strlen(newtc); ptr1 = strchr(ptr1, ':'); strncpy (newtc, ptr1, i = ptr2 - ptr1); newtc += i; sprintf (newtc, "%d", li_first ? screen->max_col + 1 : screen->max_row + 1); ptr2 = strchr(ptr2, ':'); strcat (newtc, ptr2); #endif /* USE_SYSV_ENVVARS */ } /* * Does a non-blocking wait for a child process. If the system * doesn't support non-blocking wait, do nothing. * Returns the pid of the child, or 0 or -1 if none or error. */ int nonblocking_wait() { #ifdef USE_POSIX_WAIT pid_t pid; pid = waitpid(-1, NULL, WNOHANG); #else /* USE_POSIX_WAIT */ #if defined(USE_SYSV_SIGNALS) && (defined(CRAY) || !defined(SIGTSTP)) /* cannot do non-blocking wait */ int pid = 0; #else /* defined(USE_SYSV_SIGNALS) && (defined(CRAY) || !defined(SIGTSTP)) */ union wait status; register int pid; pid = wait3 (&status, WNOHANG, (struct rusage *)NULL); #endif /* defined(USE_SYSV_SIGNALS) && !defined(SIGTSTP) */ #endif /* USE_POSIX_WAIT else */ return pid; } /* ARGSUSED */ static SIGNAL_T reapchild (n) int n; { int pid; pid = wait(NULL); #ifdef USE_SYSV_SIGNALS /* cannot re-enable signal before waiting for child because then SVR4 loops. Sigh. HP-UX 9.01 too. */ (void) signal(SIGCHLD, reapchild); #endif do { if (pid == term->screen.pid) { #ifdef DEBUG if (debug) fputs ("Exiting\n", stderr); #endif Cleanup (0); } } while ( (pid=nonblocking_wait()) > 0); SIGNAL_RETURN; } /* VARARGS1 */ consolepr(fmt,x0,x1,x2,x3,x4,x5,x6,x7,x8,x9) char *fmt; { extern char *SysErrorMsg(); int oerrno; int f; char buf[ BUFSIZ ]; oerrno = errno; strcpy(buf, "xterm: "); sprintf(buf+strlen(buf), fmt, x0,x1,x2,x3,x4,x5,x6,x7,x8,x9); strcat(buf, ": "); strcat(buf, SysErrorMsg (oerrno)); strcat(buf, "\n"); #ifndef AMOEBA f = open("/dev/console",O_WRONLY); write(f, buf, strlen(buf)); close(f); #else fputs(buf, stderr); #endif #ifdef TIOCNOTTY if ((f = open("/dev/tty", 2)) >= 0) { ioctl(f, TIOCNOTTY, (char *)NULL); close(f); } #endif /* TIOCNOTTY */ } remove_termcap_entry (buf, str) char *buf; char *str; { register char *strinbuf; strinbuf = strindex (buf, str); if (strinbuf) { register char *colonPtr = strchr(strinbuf+1, ':'); if (colonPtr) { while (*colonPtr) { *strinbuf++ = *colonPtr++; /* copy down */ } *strinbuf = '\0'; } else { strinbuf[1] = '\0'; } } return 0; } /* * parse_tty_modes accepts lines of the following form: * * [SETTING] ... * * where setting consists of the words in the modelist followed by a character * or ^char. */ static int parse_tty_modes (s, modelist) char *s; struct _xttymodes *modelist; { struct _xttymodes *mp; int c; int count = 0; while (1) { while (*s && isascii(*s) && isspace(*s)) s++; if (!*s) return count; for (mp = modelist; mp->name; mp++) { if (strncmp (s, mp->name, mp->len) == 0) break; } if (!mp->name) return -1; s += mp->len; while (*s && isascii(*s) && isspace(*s)) s++; if (!*s) return -1; if (*s == '^') { s++; c = ((*s == '?') ? 0177 : *s & 31); /* keep control bits */ } else { c = *s; } mp->value = c; mp->set = 1; count++; s++; } } int GetBytesAvailable (fd) int fd; { #ifndef AMOEBA #ifdef FIONREAD static long arg; ioctl (fd, FIONREAD, (char *) &arg); return (int) arg; #else #ifdef MINIX /* The answer doesn't have to correct. Calling nbio_isinprogress is * much cheaper than called nbio_select. */ if (nbio_isinprogress(fd, ASIO_READ)) return 0; else return 1; #else /* !MINIX */ struct pollfd pollfds[1]; pollfds[0].fd = fd; pollfds[0].events = POLLIN; return poll (pollfds, 1, 0); #endif /* MINIX */ #endif #else /* * Since this routine is only used to poll X connections * we can use an internal Xlib routine (oh what ugly). */ register TScreen *screen = &term->screen; int count; if (ConnectionNumber(screen->display) != fd) { Panic("Cannot get bytes available"); return -1; } return _X11TransAmFdBytesReadable(fd, &count) < 0 ? -1 : count; #endif /* AMOEBA */ } /* Utility function to try to hide system differences from everybody who used to call killpg() */ int kill_process_group(pid, sig) int pid; int sig; { #ifndef AMOEBA #ifndef X_NOT_POSIX return kill (-pid, sig); #else #if defined(SVR4) || defined(SYSV) return kill (-pid, sig); #else return killpg (pid, sig); #endif #endif #else /* AMOEBA */ if (pid != 2) { fprintf(stderr, "%s: unexpected process id %d.\n", ProgramName, pid); abort(); } ttysendsig(sig); #endif /* AMOEBA */ }