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Diffstat (limited to 'nx-X11/programs/xterm/main.c')
| -rw-r--r-- | nx-X11/programs/xterm/main.c | 4943 |
1 files changed, 4943 insertions, 0 deletions
diff --git a/nx-X11/programs/xterm/main.c b/nx-X11/programs/xterm/main.c new file mode 100644 index 000000000..35ce9d928 --- /dev/null +++ b/nx-X11/programs/xterm/main.c @@ -0,0 +1,4943 @@ +/* $XTermId: main.c,v 1.477 2005/11/13 23:10:36 tom Exp $ */ + +#if !defined(lint) && 0 +static char *rid = "$Xorg: main.c,v 1.7 2001/02/09 02:06:02 xorgcvs Exp $"; +#endif /* lint */ + +/* + * 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 2002-2004,2005 by Thomas E. Dickey + + All Rights Reserved + +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 ABOVE LISTED COPYRIGHT HOLDER(S) 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(s) of the above copyright +holders shall not be used in advertising or otherwise to promote the +sale, use or other dealings in this Software without prior written +authorization. + +Copyright 1987, 1988 The Open Group + +Permission to use, copy, modify, distribute, and sell this software and its +documentation for any purpose is hereby granted without fee, provided that +the above copyright notice appear in all copies and that both that +copyright notice and this permission notice appear in supporting +documentation. + +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 +OPEN GROUP 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 Open Group 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 Open Group. + +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. + +******************************************************************/ + +/**************************************************************************/ +/* */ +/* Copyright (c) 2001, 2007 NoMachine, http://www.nomachine.com/. */ +/* */ +/* NX-X11, NX protocol compression and NX extensions to this software */ +/* are copyright of NoMachine. Redistribution and use of the present */ +/* software is allowed according to terms specified in the file LICENSE */ +/* which comes in the source distribution. */ +/* */ +/* Check http://www.nomachine.com/licensing.html for applicability. */ +/* */ +/* NX and NoMachine are trademarks of NoMachine S.r.l. */ +/* */ +/* All rights reserved. */ +/* */ +/**************************************************************************/ + +/* $XFree86: xc/programs/xterm/main.c,v 3.199 2005/11/13 23:10:36 dickey Exp $ */ + +#ifdef NX_TRANS_EXIT + +/* + * Redefine the libc exit() function to be + * sure we get rid of proxy and detect any + * abnormal termination. + */ + +extern void NXTransExit(int code) __attribute__((noreturn)); + +#define exit(code) NXTransExit(code) + +#endif /* #ifdef NX_TRANS_EXIT */ + +/* main.c */ + +#define RES_OFFSET(field) XtOffsetOf(XTERM_RESOURCE, field) + +#include <xterm.h> + +#include <X11/cursorfont.h> +#include <X11/Xlocale.h> + +#if OPT_TOOLBAR + +#if defined(HAVE_LIB_XAW) +#include <X11/Xaw/Form.h> +#elif defined(HAVE_LIB_XAW3D) +#include <X11/Xaw3d/Form.h> +#elif defined(HAVE_LIB_NEXTAW) +#include <X11/neXtaw/Form.h> +#elif defined(HAVE_LIB_XAWPLUS) +#include <X11/XawPlus/Form.h> +#endif + +#endif /* OPT_TOOLBAR */ + +#include <pwd.h> +#include <ctype.h> + +#include <data.h> +#include <error.h> +#include <menu.h> +#include <main.h> +#include <xstrings.h> +#include <xterm_io.h> + +#if OPT_WIDE_CHARS +#include <charclass.h> +#endif + +#ifdef __osf__ +#define USE_SYSV_SIGNALS +#define WTMP +#include <pty.h> /* openpty() */ +#endif + +#ifdef __sgi +#include <grp.h> /* initgroups() */ +#endif + +#ifdef USE_ISPTS_FLAG +static Bool IsPts = False; +#endif + +#if defined(__SCO__) || defined(SVR4) || defined(_POSIX_SOURCE) +#define USE_POSIX_SIGNALS +#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_PGRP +#define USE_SYSV_SIGNALS +#define WTMP +#ifdef __GLIBC__ +#if (__GLIBC__ > 2) || ((__GLIBC__ == 2) && (__GLIBC_MINOR__ >= 1)) +#include <pty.h> +#endif +#endif +#endif + +#ifdef __MVS__ +#define USE_SYSV_PGRP +#define USE_SYSV_SIGNALS +#endif + +#ifdef __CYGWIN__ +#define LASTLOG +#define WTMP +#endif + +#ifdef __SCO__ +#ifndef _SVID3 +#define _SVID3 +#endif +#endif + +#if defined(__GLIBC__) && !defined(linux) +#define USE_SYSV_PGRP +#define WTMP +#define HAS_BSD_GROUPS +#endif + +#if defined(USE_TTY_GROUP) || defined(USE_UTMP_SETGID) +#include <grp.h> +#endif + +#ifndef TTY_GROUP_NAME +#define TTY_GROUP_NAME "tty" +#endif + +#include <sys/stat.h> + +#ifdef Lynx +#ifndef BSDLY +#define BSDLY 0 +#endif +#ifndef VTDLY +#define VTDLY 0 +#endif +#ifndef FFDLY +#define FFDLY 0 +#endif +#endif + +#ifdef SYSV /* { */ + +#ifdef USE_USG_PTYS /* AT&T SYSV has no ptyio.h */ +#include <sys/stropts.h> /* for I_PUSH */ +#include <poll.h> /* for POLLIN */ +#endif /* USE_USG_PTYS */ + +#define USE_SYSV_SIGNALS +#define USE_SYSV_PGRP + +#if !defined(TIOCSWINSZ) || defined(__SCO__) || defined(__UNIXWARE__) +#define USE_SYSV_ENVVARS /* COLUMNS/LINES vs. TERMCAP */ +#endif + +/* + * now get system-specific includes + */ +#ifdef CRAY +#define HAS_BSD_GROUPS +#endif + +#ifdef macII +#define HAS_BSD_GROUPS +#include <sys/ttychars.h> +#undef USE_SYSV_ENVVARS +#undef FIOCLEX +#undef FIONCLEX +#define setpgrp2 setpgrp +#include <sgtty.h> +#include <sys/resource.h> +#endif + +#ifdef __hpux +#define HAS_BSD_GROUPS +#include <sys/ptyio.h> +#endif /* __hpux */ + +#ifdef __osf__ +#define HAS_BSD_GROUPS +#undef USE_SYSV_PGRP +#define setpgrp setpgid +#endif + +#ifdef __sgi +#define HAS_BSD_GROUPS +#include <sys/sysmacros.h> +#endif /* __sgi */ + +#ifdef sun +#include <sys/strredir.h> +#endif + +#else /* } !SYSV { */ /* BSD systems */ + +#ifdef __QNX__ + +#ifndef __QNXNTO__ +#define ttyslot() 1 +#else +#define USE_SYSV_PGRP +extern __inline__ +ttyslot() +{ + return 1; /* yuk */ +} +#endif + +#else + +#if defined(__INTERIX) || defined(__APPLE__) +#define setpgrp setpgid +#endif + +#ifndef linux +#ifndef VMS +#ifndef USE_POSIX_TERMIOS +#ifndef USE_ANY_SYSV_TERMIO +#include <sgtty.h> +#endif +#endif /* USE_POSIX_TERMIOS */ +#ifdef Lynx +#include <resource.h> +#else +#include <sys/resource.h> +#endif +#ifndef __INTERIX +#define HAS_BSD_GROUPS +#endif +#endif /* !VMS */ +#endif /* !linux */ + +#endif /* __QNX__ */ + +#endif /* } !SYSV */ + +#if defined(SVR4) && !defined(__CYGWIN__) +#define HAS_SAVED_IDS_AND_SETEUID +#endif + +#ifdef linux +#define HAS_SAVED_IDS_AND_SETEUID +#endif + +/* Xpoll.h and <sys/param.h> on glibc 2.1 systems have colliding NBBY's */ +#if defined(__GLIBC__) && ((__GLIBC__ > 2) || ((__GLIBC__ == 2) && (__GLIBC_MINOR__ >= 1))) +#ifndef NOFILE +#define NOFILE OPEN_MAX +#endif +#elif !(defined(VMS) || defined(WIN32) || defined(Lynx) || defined(__GNU__) || defined(__MVS__)) +#include <sys/param.h> /* for NOFILE */ +#endif + +#if defined(BSD) && (BSD >= 199103) +#define WTMP +#define HAS_SAVED_IDS_AND_SETEUID +#endif + +#include <stdio.h> + +#ifdef __hpux +#include <sys/utsname.h> +#endif /* __hpux */ + +#if defined(apollo) && (OSMAJORVERSION == 10) && (OSMINORVERSION < 4) +#define ttyslot() 1 +#endif /* apollo */ + +#if defined(UTMPX_FOR_UTMP) +#define UTMP_STR utmpx +#else +#define UTMP_STR utmp +#endif + +#if defined(USE_UTEMPTER) +#include <utempter.h> +#endif + +#if defined(UTMPX_FOR_UTMP) + +#include <utmpx.h> + +#define call_endutent endutxent +#define call_getutid getutxid +#define call_pututline pututxline +#define call_setutent setutxent +#define call_updwtmp updwtmpx + +#elif defined(HAVE_UTMP) + +#include <utmp.h> + +#if defined(_CRAY) && (OSMAJORVERSION < 8) +extern struct utmp *getutid __((struct utmp * _Id)); +#endif + +#define call_endutent endutent +#define call_getutid getutid +#define call_pututline pututline +#define call_setutent setutent +#define call_updwtmp updwtmp + +#endif + +#if defined(USE_LASTLOG) && defined(HAVE_LASTLOG_H) +#include <lastlog.h> /* caution: glibc 2.3.5 includes utmp.h here */ +#endif + +#ifndef USE_LASTLOGX +#if defined(_NETBSD_SOURCE) && defined(_PATH_LASTLOGX) +#define USE_LASTLOGX 1 +#endif +#endif + +#ifdef PUCC_PTYD +#include <local/openpty.h> +#endif /* PUCC_PTYD */ + +#if defined(__OpenBSD__) || defined(__NetBSD__) || defined(__APPLE__) +#include <util.h> /* openpty() */ +#endif + +#ifdef __FreeBSD__ +#include <libutil.h> /* openpty() */ +#endif + +#if !defined(UTMP_FILENAME) +#if defined(UTMP_FILE) +#define UTMP_FILENAME UTMP_FILE +#elif defined(_PATH_UTMP) +#define UTMP_FILENAME _PATH_UTMP +#else +#define UTMP_FILENAME "/etc/utmp" +#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 + +#if !defined(WTMP_FILENAME) +#if defined(WTMP_FILE) +#define WTMP_FILENAME WTMP_FILE +#elif defined(_PATH_WTMP) +#define WTMP_FILENAME _PATH_WTMP +#elif defined(SYSV) +#define WTMP_FILENAME "/etc/wtmp" +#else +#define WTMP_FILENAME "/usr/adm/wtmp" +#endif +#endif + +#include <signal.h> + +#if defined(__SCO__) || (defined(ISC) && !defined(_POSIX_SOURCE)) +#undef SIGTSTP /* defined, but not the BSD way */ +#endif + +#ifdef SIGTSTP +#include <sys/wait.h> +#endif + +#if defined(__SCO__) || defined(__UNIXWARE__) +#undef ECHOKE +#undef ECHOCTL +#endif + +#ifdef X_NOT_POSIX +extern long lseek(); +#if defined(USG) || defined(SVR4) +extern unsigned sleep(); +#else +extern void sleep(); +#endif +extern char *ttyname(); +#endif + +#ifdef SYSV +extern char *ptsname(int); +#endif + +#ifdef __cplusplus +extern "C" { +#endif + + extern int tgetent(char *ptr, char *name); + extern char *tgetstr(char *name, char **ptr); + +#ifdef __cplusplus +} +#endif +#ifndef VMS +static SIGNAL_T reapchild(int n); +static int spawn(void); +static void remove_termcap_entry(char *buf, char *str); +#ifdef USE_PTY_SEARCH +static int pty_search(int *pty); +#endif +#endif /* ! VMS */ + +static int get_pty(int *pty, char *from); +static void get_terminal(void); +static void resize(TScreen * s, char *oldtc, char *newtc); +static void set_owner(char *device, uid_t uid, gid_t gid, mode_t mode); + +static Bool added_utmp_entry = False; + +#if defined(USE_UTMP_SETGID) +static int utmpGid = -1; +static int really_get_pty(int *pty, char *from); +#endif + +#if defined(USE_SYSV_UTMP) && !defined(USE_UTEMPTER) +static Bool xterm_exiting = False; +#endif + +static char *explicit_shname = NULL; + +/* +** Ordinarily it should be okay to omit the assignment in the following +** statement. Apparently the c89 compiler on AIX 4.1.3 has a bug, or does +** it? Without the assignment though the compiler will init command_to_exec +** to 0xffffffff instead of NULL; and subsequent usage, e.g. in spawn() to +** SEGV. +*/ +static char **command_to_exec = NULL; + +#if OPT_LUIT_PROG +static char **command_to_exec_with_luit = NULL; +#endif + +#define TERMCAP_ERASE "kb" +#define VAL_INITIAL_ERASE A2E(8) + +/* choose a nice default value for speed - if we make it too low, users who + * mistakenly use $TERM set to vt100 will get padding delays. Setting it to a + * higher value is not useful since legacy applications (termcap) that care + * about padding generally store the code in a short, which does not have + * enough bits for the extended values. + */ +#ifdef B38400 /* everyone should define this */ +#define VAL_LINE_SPEED B38400 +#else /* ...but xterm's used this for a long time */ +#define VAL_LINE_SPEED B9600 +#endif + +/* allow use of system default characters if defined and reasonable */ +#ifndef CBRK +#define CBRK 0 +#endif +#ifndef CDSUSP +#define CDSUSP CONTROL('Y') +#endif +#ifndef CEOF +#define CEOF CONTROL('D') +#endif +#ifndef CEOL +#define CEOL 0 +#endif +#ifndef CFLUSH +#define CFLUSH CONTROL('O') +#endif +#ifndef CINTR +#define CINTR 0177 +#endif +#ifndef CKILL +#define CKILL '@' +#endif +#ifndef CLNEXT +#define CLNEXT CONTROL('V') +#endif +#ifndef CNUL +#define CNUL 0 +#endif +#ifndef CQUIT +#define CQUIT CONTROL('\\') +#endif +#ifndef CRPRNT +#define CRPRNT CONTROL('R') +#endif +#ifndef CSTART +#define CSTART CONTROL('Q') +#endif +#ifndef CSTOP +#define CSTOP CONTROL('S') +#endif +#ifndef CSUSP +#define CSUSP CONTROL('Z') +#endif +#ifndef CSWTCH +#define CSWTCH 0 +#endif +#ifndef CWERASE +#define CWERASE CONTROL('W') +#endif + +#ifdef USE_ANY_SYSV_TERMIO +#define TERMIO_STRUCT struct termio +#define ttySetAttr(fd, datap) ioctl(fd, TCSETA, datap) +#define ttyGetAttr(fd, datap) ioctl(fd, TCGETA, datap) +#elif defined(USE_POSIX_TERMIOS) +#define TERMIO_STRUCT struct termios +#define ttySetAttr(fd, datap) tcsetattr(fd, TCSANOW, datap) +#define ttyGetAttr(fd, datap) tcgetattr(fd, datap) +#endif /* USE_ANY_SYSV_TERMIO */ + +#ifndef VMS +#ifdef TERMIO_STRUCT +/* The following structures are initialized in main() in order +** to eliminate any assumptions about the internal order of their +** contents. +*/ +static TERMIO_STRUCT d_tio; + +#ifdef HAS_LTCHARS +static struct ltchars d_ltc; +#endif /* HAS_LTCHARS */ + +#ifdef TIOCLSET +static unsigned int d_lmode; +#endif /* TIOCLSET */ + +#else /* !TERMIO_STRUCT */ +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 /* TERMIO_STRUCT */ +#endif /* ! VMS */ + +/* + * 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. + * POSIX termios has termios.c_cc, which is similar to SVR4. + */ +#define TTYMODE(name) { name, sizeof(name)-1, 0, 0 } +static int override_tty_modes = 0; +/* *INDENT-OFF* */ +static struct _xttymodes { + char *name; + size_t len; + int set; + Char value; +} ttymodelist[] = { + TTYMODE("intr"), /* tchars.t_intrc ; VINTR */ +#define XTTYMODE_intr 0 + TTYMODE("quit"), /* tchars.t_quitc ; VQUIT */ +#define XTTYMODE_quit 1 + TTYMODE("erase"), /* sgttyb.sg_erase ; VERASE */ +#define XTTYMODE_erase 2 + TTYMODE("kill"), /* sgttyb.sg_kill ; VKILL */ +#define XTTYMODE_kill 3 + TTYMODE("eof"), /* tchars.t_eofc ; VEOF */ +#define XTTYMODE_eof 4 + TTYMODE("eol"), /* VEOL */ +#define XTTYMODE_eol 5 + TTYMODE("swtch"), /* VSWTCH */ +#define XTTYMODE_swtch 6 + TTYMODE("start"), /* tchars.t_startc ; VSTART */ +#define XTTYMODE_start 7 + TTYMODE("stop"), /* tchars.t_stopc ; VSTOP */ +#define XTTYMODE_stop 8 + TTYMODE("brk"), /* tchars.t_brkc */ +#define XTTYMODE_brk 9 + TTYMODE("susp"), /* ltchars.t_suspc ; VSUSP */ +#define XTTYMODE_susp 10 + TTYMODE("dsusp"), /* ltchars.t_dsuspc ; VDSUSP */ +#define XTTYMODE_dsusp 11 + TTYMODE("rprnt"), /* ltchars.t_rprntc ; VREPRINT */ +#define XTTYMODE_rprnt 12 + TTYMODE("flush"), /* ltchars.t_flushc ; VDISCARD */ +#define XTTYMODE_flush 13 + TTYMODE("weras"), /* ltchars.t_werasc ; VWERASE */ +#define XTTYMODE_weras 14 + TTYMODE("lnext"), /* ltchars.t_lnextc ; VLNEXT */ +#define XTTYMODE_lnext 15 + TTYMODE("status"), /* VSTATUS */ +#define XTTYMODE_status 16 + TTYMODE("erase2"), /* VERASE2 */ +#define XTTYMODE_erase2 17 + TTYMODE("eol2"), /* VEOL2 */ +#define XTTYMODE_eol2 18 + { NULL, 0, 0, '\0' }, /* end of data */ +}; +/* *INDENT-ON* */ + +#define TMODE(ind,var) if (ttymodelist[ind].set) var = ttymodelist[ind].value + +static int parse_tty_modes(char *s, struct _xttymodes *modelist); + +#ifdef USE_SYSV_UTMP +#if (defined(AIXV3) && (OSMAJORVERSION < 4)) && !(defined(getutid)) +extern struct utmp *getutid(); +#endif /* AIXV3 */ + +#else /* not USE_SYSV_UTMP */ +static char etc_utmp[] = UTMP_FILENAME; +#endif /* USE_SYSV_UTMP */ + +#ifndef USE_UTEMPTER +#ifdef USE_LASTLOG +static char etc_lastlog[] = LASTLOG_FILENAME; +#endif + +#ifdef WTMP +static char etc_wtmp[] = WTMP_FILENAME; +#endif +#endif /* !USE_UTEMPTER */ + +/* + * 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 USE_LASTLOG. + */ +#ifdef USE_LOGIN_DASH_P +#ifndef LOGIN_FILENAME +#define LOGIN_FILENAME "/bin/login" +#endif +static char bin_login[] = LOGIN_FILENAME; +#endif + +static char passedPty[PTYCHARLEN + 1]; /* name if pty if slave */ + +#if defined(TIOCCONS) || defined(SRIOCSREDIR) +static int Console; +#include <X11/Xmu/SysUtil.h> /* 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 sigjmp_buf env; + +#define SetUtmpHost(dst, screen) \ + { \ + char host[sizeof(dst) + 1]; \ + strncpy(host, DisplayString(screen->display), sizeof(host)); \ + TRACE(("DisplayString(%s)\n", host)); \ + if (!resource.utmpDisplayId) { \ + char *endptr = strrchr(host, ':'); \ + if (endptr) { \ + TRACE(("trimming display-id '%s'\n", host)); \ + *endptr = '\0'; \ + } \ + } \ + strncpy(dst, host, sizeof(dst)); \ + } + +/* used by VT (charproc.c) */ + +static XtResource application_resources[] = +{ + Sres("name", "Name", xterm_name, DFT_TERMTYPE), + Sres("iconGeometry", "IconGeometry", icon_geometry, NULL), + Sres(XtNtitle, XtCTitle, title, NULL), + Sres(XtNiconName, XtCIconName, icon_name, NULL), + Sres("termName", "TermName", term_name, NULL), + Sres("ttyModes", "TtyModes", tty_modes, NULL), + Bres("hold", "Hold", hold_screen, False), + Bres("utmpInhibit", "UtmpInhibit", utmpInhibit, False), + Bres("utmpDisplayId", "UtmpDisplayId", utmpDisplayId, True), + Bres("messages", "Messages", messages, True), + Ires("minBufSize", "MinBufSize", minBufSize, 4096), + Ires("maxBufSize", "MaxBufSize", maxBufSize, 32768), + Sres("keyboardType", "KeyboardType", keyboardType, "unknown"), + Bres("sunFunctionKeys", "SunFunctionKeys", sunFunctionKeys, False), +#if OPT_SUNPC_KBD + Bres("sunKeyboard", "SunKeyboard", sunKeyboard, False), +#endif +#if OPT_HP_FUNC_KEYS + Bres("hpFunctionKeys", "HpFunctionKeys", hpFunctionKeys, False), +#endif +#if OPT_SCO_FUNC_KEYS + Bres("scoFunctionKeys", "ScoFunctionKeys", scoFunctionKeys, False), +#endif +#if OPT_INITIAL_ERASE + Bres("ptyInitialErase", "PtyInitialErase", ptyInitialErase, DEF_INITIAL_ERASE), + Bres("backarrowKeyIsErase", "BackarrowKeyIsErase", backarrow_is_erase, DEF_BACKARO_ERASE), +#endif + Bres("waitForMap", "WaitForMap", wait_for_map, False), + Bres("useInsertMode", "UseInsertMode", useInsertMode, False), +#if OPT_ZICONBEEP + Ires("zIconBeep", "ZIconBeep", zIconBeep, 0), +#endif +#if OPT_PTY_HANDSHAKE + Bres("ptyHandshake", "PtyHandshake", ptyHandshake, True), +#endif +#if OPT_SAME_NAME + Bres("sameName", "SameName", sameName, True), +#endif +#if OPT_SESSION_MGT + Bres("sessionMgt", "SessionMgt", sessionMgt, True), +#endif +#if OPT_TOOLBAR + Bres(XtNtoolBar, XtCToolBar, toolBar, True), +#endif +}; + +static char *fallback_resources[] = +{ + "*SimpleMenu*menuLabel.vertSpace: 100", + "*SimpleMenu*HorizontalMargins: 16", + "*SimpleMenu*Sme.height: 16", + "*SimpleMenu*Cursor: left_ptr", + "*mainMenu.Label: Main Options (no app-defaults)", + "*vtMenu.Label: VT Options (no app-defaults)", + "*fontMenu.Label: VT Fonts (no app-defaults)", +#if OPT_TEK4014 + "*tekMenu.Label: Tek Options (no app-defaults)", +#endif + NULL +}; + +/* Command line options table. Only resources are entered here...there is a + pass over the remaining options after XrmParseCommand is let loose. */ +/* *INDENT-OFF* */ +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"}, +{"-aw", "*autoWrap", XrmoptionNoArg, (caddr_t) "on"}, +{"+aw", "*autoWrap", XrmoptionNoArg, (caddr_t) "off"}, +#ifndef NO_ACTIVE_ICON +{"-ai", "*activeIcon", XrmoptionNoArg, (caddr_t) "off"}, +{"+ai", "*activeIcon", XrmoptionNoArg, (caddr_t) "on"}, +#endif /* NO_ACTIVE_ICON */ +{"-b", "*internalBorder",XrmoptionSepArg, (caddr_t) NULL}, +{"-bc", "*cursorBlink", XrmoptionNoArg, (caddr_t) "on"}, +{"+bc", "*cursorBlink", XrmoptionNoArg, (caddr_t) "off"}, +{"-bcf", "*cursorOffTime",XrmoptionSepArg, (caddr_t) NULL}, +{"-bcn", "*cursorOnTime",XrmoptionSepArg, (caddr_t) NULL}, +{"-bdc", "*colorBDMode", XrmoptionNoArg, (caddr_t) "off"}, +{"+bdc", "*colorBDMode", XrmoptionNoArg, (caddr_t) "on"}, +{"-cb", "*cutToBeginningOfLine", XrmoptionNoArg, (caddr_t) "off"}, +{"+cb", "*cutToBeginningOfLine", XrmoptionNoArg, (caddr_t) "on"}, +{"-cc", "*charClass", XrmoptionSepArg, (caddr_t) NULL}, +{"-cm", "*colorMode", XrmoptionNoArg, (caddr_t) "off"}, +{"+cm", "*colorMode", XrmoptionNoArg, (caddr_t) "on"}, +{"-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"}, +{"-dc", "*dynamicColors",XrmoptionNoArg, (caddr_t) "off"}, +{"+dc", "*dynamicColors",XrmoptionNoArg, (caddr_t) "on"}, +{"-fb", "*boldFont", XrmoptionSepArg, (caddr_t) NULL}, +{"-fbb", "*freeBoldBox", XrmoptionNoArg, (caddr_t)"off"}, +{"+fbb", "*freeBoldBox", XrmoptionNoArg, (caddr_t)"on"}, +{"-fbx", "*forceBoxChars", XrmoptionNoArg, (caddr_t)"off"}, +{"+fbx", "*forceBoxChars", XrmoptionNoArg, (caddr_t)"on"}, +#ifndef NO_ACTIVE_ICON +{"-fi", "*iconFont", XrmoptionSepArg, (caddr_t) NULL}, +#endif /* NO_ACTIVE_ICON */ +#if OPT_RENDERFONT +{"-fa", "*faceName", XrmoptionSepArg, (caddr_t) NULL}, +{"-fd", "*faceNameDoublesize", XrmoptionSepArg, (caddr_t) NULL}, +{"-fs", "*faceSize", XrmoptionSepArg, (caddr_t) NULL}, +#endif +#if OPT_WIDE_CHARS +{"-fw", "*wideFont", XrmoptionSepArg, (caddr_t) NULL}, +{"-fwb", "*wideBoldFont", XrmoptionSepArg, (caddr_t) NULL}, +#endif +#if OPT_INPUT_METHOD +{"-fx", "*ximFont", XrmoptionSepArg, (caddr_t) NULL}, +#endif +#if OPT_HIGHLIGHT_COLOR +{"-hc", "*highlightColor", XrmoptionSepArg, (caddr_t) NULL}, +#endif +#if OPT_HP_FUNC_KEYS +{"-hf", "*hpFunctionKeys",XrmoptionNoArg, (caddr_t) "on"}, +{"+hf", "*hpFunctionKeys",XrmoptionNoArg, (caddr_t) "off"}, +#endif +{"-hold", "*hold", XrmoptionNoArg, (caddr_t) "on"}, +{"+hold", "*hold", XrmoptionNoArg, (caddr_t) "off"}, +#if OPT_INITIAL_ERASE +{"-ie", "*ptyInitialErase", XrmoptionNoArg, (caddr_t) "on"}, +{"+ie", "*ptyInitialErase", XrmoptionNoArg, (caddr_t) "off"}, +#endif +{"-j", "*jumpScroll", XrmoptionNoArg, (caddr_t) "on"}, +{"+j", "*jumpScroll", XrmoptionNoArg, (caddr_t) "off"}, +#if OPT_C1_PRINT +{"-k8", "*allowC1Printable", XrmoptionNoArg, (caddr_t) "on"}, +{"+k8", "*allowC1Printable", XrmoptionNoArg, (caddr_t) "off"}, +#endif +{"-kt", "*keyboardType", XrmoptionSepArg, (caddr_t) NULL}, +{"+kt", "*keyboardType", XrmoptionSepArg, (caddr_t) NULL}, +/* 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}, +{"-mesg", "*messages", XrmoptionNoArg, (caddr_t) "off"}, +{"+mesg", "*messages", XrmoptionNoArg, (caddr_t) "on"}, +{"-ms", "*pointerColor",XrmoptionSepArg, (caddr_t) NULL}, +{"-nb", "*nMarginBell", XrmoptionSepArg, (caddr_t) NULL}, +{"-nul", "*underLine", XrmoptionNoArg, (caddr_t) "off"}, +{"+nul", "*underLine", XrmoptionNoArg, (caddr_t) "on"}, +{"-pc", "*boldColors", XrmoptionNoArg, (caddr_t) "on"}, +{"+pc", "*boldColors", XrmoptionNoArg, (caddr_t) "off"}, +{"-rw", "*reverseWrap", XrmoptionNoArg, (caddr_t) "on"}, +{"+rw", "*reverseWrap", 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"}, +#ifdef SCROLLBAR_RIGHT +{"-leftbar", "*rightScrollBar", XrmoptionNoArg, (caddr_t) "off"}, +{"-rightbar", "*rightScrollBar", XrmoptionNoArg, (caddr_t) "on"}, +#endif +{"-rvc", "*colorRVMode", XrmoptionNoArg, (caddr_t) "off"}, +{"+rvc", "*colorRVMode", XrmoptionNoArg, (caddr_t) "on"}, +{"-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}, +#if OPT_SUNPC_KBD +{"-sp", "*sunKeyboard", XrmoptionNoArg, (caddr_t) "on"}, +{"+sp", "*sunKeyboard", XrmoptionNoArg, (caddr_t) "off"}, +#endif +#if OPT_TEK4014 +{"-t", "*tekStartup", XrmoptionNoArg, (caddr_t) "on"}, +{"+t", "*tekStartup", XrmoptionNoArg, (caddr_t) "off"}, +#endif +{"-ti", "*decTerminalID",XrmoptionSepArg, (caddr_t) NULL}, +{"-tm", "*ttyModes", XrmoptionSepArg, (caddr_t) NULL}, +{"-tn", "*termName", XrmoptionSepArg, (caddr_t) NULL}, +#if OPT_WIDE_CHARS +{"-u8", "*utf8", XrmoptionNoArg, (caddr_t) "2"}, +{"+u8", "*utf8", XrmoptionNoArg, (caddr_t) "0"}, +#endif +#if OPT_LUIT_PROG +{"-lc", "*locale", XrmoptionNoArg, (caddr_t) "on"}, +{"+lc", "*locale", XrmoptionNoArg, (caddr_t) "off"}, +{"-lcc", "*localeFilter",XrmoptionSepArg, (caddr_t) NULL}, +{"-en", "*locale", XrmoptionSepArg, (caddr_t) NULL}, +#endif +{"-ulc", "*colorULMode", XrmoptionNoArg, (caddr_t) "off"}, +{"+ulc", "*colorULMode", XrmoptionNoArg, (caddr_t) "on"}, +{"-ulit", "*italicULMode", XrmoptionNoArg, (caddr_t) "off"}, +{"+ulit", "*italicULMode", XrmoptionNoArg, (caddr_t) "on"}, +{"-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"}, +{"-pob", "*popOnBell", XrmoptionNoArg, (caddr_t) "on"}, +{"+pob", "*popOnBell", XrmoptionNoArg, (caddr_t) "off"}, +#if OPT_WIDE_CHARS +{"-wc", "*wideChars", XrmoptionNoArg, (caddr_t) "on"}, +{"+wc", "*wideChars", XrmoptionNoArg, (caddr_t) "off"}, +{"-mk_width", "*mkWidth", XrmoptionNoArg, (caddr_t) "on"}, +{"+mk_width", "*mkWidth", XrmoptionNoArg, (caddr_t) "off"}, +{"-cjk_width", "*cjkWidth", XrmoptionNoArg, (caddr_t) "on"}, +{"+cjk_width", "*cjkWidth", XrmoptionNoArg, (caddr_t) "off"}, +#endif +{"-wf", "*waitForMap", XrmoptionNoArg, (caddr_t) "on"}, +{"+wf", "*waitForMap", XrmoptionNoArg, (caddr_t) "off"}, +#if OPT_ZICONBEEP +{"-ziconbeep", "*zIconBeep", XrmoptionSepArg, (caddr_t) NULL}, +#endif +#if OPT_SAME_NAME +{"-samename", "*sameName", XrmoptionNoArg, (caddr_t) "on"}, +{"+samename", "*sameName", XrmoptionNoArg, (caddr_t) "off"}, +#endif +#if OPT_SESSION_MGT +{"-sm", "*sessionMgt", XrmoptionNoArg, (caddr_t) "on"}, +{"+sm", "*sessionMgt", XrmoptionNoArg, (caddr_t) "off"}, +#endif +#if OPT_TOOLBAR +{"-tb", "*"XtNtoolBar, XrmoptionNoArg, (caddr_t) "on"}, +{"+tb", "*"XtNtoolBar, XrmoptionNoArg, (caddr_t) "off"}, +#endif +/* options that we process ourselves */ +{"-help", NULL, XrmoptionSkipNArgs, (caddr_t) NULL}, +{"-version", NULL, XrmoptionSkipNArgs, (caddr_t) NULL}, +{"-class", NULL, XrmoptionSkipArg, (caddr_t) NULL}, +{"-e", NULL, XrmoptionSkipLine, (caddr_t) NULL}, +{"-into", NULL, XrmoptionSkipArg, (caddr_t) NULL}, +/* bogus old compatibility stuff for which there are + standard XtOpenApplication 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 OptionHelp xtermOptions[] = { +{ "-version", "print the version number" }, +{ "-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" }, +{ "-fb fontname", "bold text font" }, +{ "-/+fbb", "turn on/off normal/bold font comparison inhibit"}, +{ "-/+fbx", "turn off/on linedrawing characters"}, +#if OPT_RENDERFONT +{ "-fa pattern", "FreeType font-selection pattern" }, +{ "-fd pattern", "FreeType Doublesize font-selection pattern" }, +{ "-fs size", "FreeType font-size" }, +#endif +#if OPT_WIDE_CHARS +{ "-fw fontname", "doublewidth text font" }, +{ "-fwb fontname", "doublewidth bold text font" }, +#endif +#if OPT_INPUT_METHOD +{ "-fx fontname", "XIM fontset" }, +#endif +{ "-iconic", "start iconic" }, +{ "-name string", "client instance, icon, and title strings" }, +{ "-class string", "class string (XTerm)" }, +{ "-title string", "title string" }, +{ "-xrm resourcestring", "additional resource specifications" }, +{ "-/+132", "turn on/off 80/132 column switching" }, +{ "-/+ah", "turn on/off always highlight" }, +#ifndef NO_ACTIVE_ICON +{ "-/+ai", "turn off/on active icon" }, +{ "-fi fontname", "icon font for active icon" }, +#endif /* NO_ACTIVE_ICON */ +{ "-b number", "internal border in pixels" }, +{ "-/+bc", "turn on/off text cursor blinking" }, +{ "-bcf milliseconds", "time text cursor is off when blinking"}, +{ "-bcn milliseconds", "time text cursor is on when blinking"}, +{ "-/+bdc", "turn off/on display of bold as color"}, +{ "-/+cb", "turn on/off cut-to-beginning-of-line inhibit" }, +{ "-cc classrange", "specify additional character classes" }, +{ "-/+cm", "turn off/on ANSI color mode" }, +{ "-/+cn", "turn on/off cut newline inhibit" }, +{ "-cr color", "text cursor color" }, +{ "-/+cu", "turn on/off curses emulation" }, +{ "-/+dc", "turn off/on dynamic color selection" }, +#if OPT_HIGHLIGHT_COLOR +{ "-hc color", "selection background color" }, +#endif +#if OPT_HP_FUNC_KEYS +{ "-/+hf", "turn on/off HP Function Key escape codes" }, +#endif +{ "-/+hold", "turn on/off logic that retains window after exit" }, +#if OPT_INITIAL_ERASE +{ "-/+ie", "turn on/off initialization of 'erase' from pty" }, +#endif +{ "-/+im", "use insert mode for TERMCAP" }, +{ "-/+j", "turn on/off jump scroll" }, +#if OPT_C1_PRINT +{ "-/+k8", "turn on/off C1-printable classification"}, +#endif +{ "-kt keyboardtype", "set keyboard type:" KEYBOARD_TYPES }, +#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" }, +{ "-/+mesg", "forbid/allow messages" }, +{ "-ms color", "pointer color" }, +{ "-nb number", "margin bell in characters from right end" }, +{ "-/+nul", "turn off/on display of underlining" }, +{ "-/+aw", "turn on/off auto wraparound" }, +{ "-/+pc", "turn on/off PC-style bold colors" }, +{ "-/+rw", "turn on/off reverse wraparound" }, +{ "-/+s", "turn on/off multiscroll" }, +{ "-/+sb", "turn on/off scrollbar" }, +#ifdef SCROLLBAR_RIGHT +{ "-rightbar", "force scrollbar right (default left)" }, +{ "-leftbar", "force scrollbar left" }, +#endif +{ "-/+rvc", "turn off/on display of reverse as color" }, +{ "-/+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" }, +#if OPT_SUNPC_KBD +{ "-/+sp", "turn on/off Sun/PC Function/Keypad mapping" }, +#endif +#if OPT_TEK4014 +{ "-/+t", "turn on/off Tek emulation window" }, +#endif +#if OPT_TOOLBAR +{ "-/+tb", "turn on/off toolbar" }, +#endif +{ "-ti termid", "terminal identifier" }, +{ "-tm string", "terminal mode keywords and characters" }, +{ "-tn name", "TERM environment variable name" }, +#if OPT_WIDE_CHARS +{ "-/+u8", "turn on/off UTF-8 mode (implies wide-characters)" }, +#endif +#if OPT_LUIT_PROG +{ "-/+lc", "turn on/off locale mode using luit" }, +{ "-lcc path", "filename of locale converter (" DEFLOCALEFILTER ")" }, +#endif +{ "-/+ulc", "turn off/on display of underline as color" }, +{ "-/+ulit", "turn off/on display of underline as italics" }, +#ifdef HAVE_UTMP +{ "-/+ut", "turn on/off utmp support" }, +#else +{ "-/+ut", "turn on/off utmp support (not available)" }, +#endif +{ "-/+vb", "turn on/off visual bell" }, +{ "-/+pob", "turn on/off pop on bell" }, +#if OPT_WIDE_CHARS +{ "-/+wc", "turn on/off wide-character mode" }, +{ "-/+mk_width", "turn on/off simple width convention" }, +{ "-/+cjk_width", "turn on/off legacy CJK width convention" }, +#endif +{ "-/+wf", "turn on/off wait for map before command exec" }, +{ "-e command args ...", "command to execute" }, +#if OPT_TEK4014 +{ "%geom", "Tek window geometry" }, +#endif +{ "#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 +{ "-Sccn", "slave mode on \"ttycc\", file descriptor \"n\"" }, +{ "-into windowId", "use the window id given to -into as the parent window rather than the default root window" }, +#if OPT_ZICONBEEP +{ "-ziconbeep percent", "beep and flag icon of window having hidden output" }, +#endif +#if OPT_SAME_NAME +{ "-/+samename", "turn on/off the no-flicker option for title and icon name" }, +#endif +#if OPT_SESSION_MGT +{ "-/+sm", "turn on/off the session-management support" }, +#endif +{ NULL, NULL }}; +/* *INDENT-ON* */ + +static char *message[] = +{ + "Fonts should be fixed width and, if both normal and bold are specified, should", + "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 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}; + +/* + * Decode a key-definition. This combines the termcap and ttyModes, for + * comparison. Note that octal escapes in ttyModes are done by the normal + * resource translation. Also, ttyModes allows '^-' as a synonym for disabled. + */ +static int +decode_keyvalue(char **ptr, int termcap) +{ + char *string = *ptr; + int value = -1; + + TRACE(("...decode '%s'\n", string)); + if (*string == '^') { + switch (*++string) { + case '?': + value = A2E(127); + break; + case '-': + if (!termcap) { + errno = 0; +#if defined(_POSIX_VDISABLE) && defined(HAVE_UNISTD_H) + value = _POSIX_VDISABLE; +#endif +#if defined(_PC_VDISABLE) + if (value == -1) { + value = fpathconf(0, _PC_VDISABLE); + if (value == -1) { + if (errno != 0) + break; /* skip this (error) */ + value = 0377; + } + } +#elif defined(VDISABLE) + if (value == -1) + value = VDISABLE; +#endif + break; + } + /* FALLTHRU */ + default: + value = CONTROL(*string); + break; + } + ++string; + } else if (termcap && (*string == '\\')) { + char *d; + int temp = strtol(string + 1, &d, 8); + if (temp > 0 && d != string) { + value = temp; + string = d; + } + } else { + value = CharOf(*string); + ++string; + } + *ptr = string; + return value; +} + +/* + * If we're linked to terminfo, tgetent() will return an empty buffer. We + * cannot use that to adjust the $TERMCAP variable. + */ +static Bool +get_termcap(char *name, char *buffer, char *resized) +{ + TScreen *screen = &term->screen; + + *buffer = 0; /* initialize, in case we're using terminfo's tgetent */ + + if (name != 0) { + if (tgetent(buffer, name) == 1) { + TRACE(("get_termcap(%s) succeeded (%s)\n", name, + (*buffer + ? "ok:termcap, we can update $TERMCAP" + : "assuming this is terminfo"))); + if (*buffer) { + if (!TEK4014_ACTIVE(screen)) { + resize(screen, buffer, resized); + } + } + return True; + } else { + *buffer = 0; /* just in case */ + } + } + return False; +} + +static int +abbrev(char *tst, char *cmp, size_t need) +{ + size_t len = strlen(tst); + return ((len >= need) && (!strncmp(tst, cmp, len))); +} + +static void +Syntax(char *badOption) +{ + OptionHelp *opt; + OptionHelp *list = sortedOpts(xtermOptions, optionDescList, XtNumber(optionDescList)); + 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 = list; 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 +Version(void) +{ + printf("%s\n", xtermVersion()); + fflush(stdout); +} + +static void +Help(void) +{ + OptionHelp *opt; + OptionHelp *list = sortedOpts(xtermOptions, optionDescList, XtNumber(optionDescList)); + char **cpp; + + printf("%s usage:\n %s [-options ...] [-e command args]\n\n", + xtermVersion(), ProgramName); + printf("where options include:\n"); + for (opt = list; opt->opt; opt++) { + printf(" %-28s %s\n", opt->opt, opt->desc); + } + + putchar('\n'); + for (cpp = message; *cpp; cpp++) + puts(*cpp); + putchar('\n'); + fflush(stdout); +} + +#if defined(TIOCCONS) || defined(SRIOCSREDIR) +/* ARGSUSED */ +static Boolean +ConvertConsoleSelection(Widget w GCC_UNUSED, + Atom * selection GCC_UNUSED, + Atom * target GCC_UNUSED, + Atom * type GCC_UNUSED, + XtPointer *value GCC_UNUSED, + unsigned long *length GCC_UNUSED, + int *format GCC_UNUSED) +{ + /* we don't save console output, so can't offer it */ + return False; +} +#endif /* TIOCCONS */ + +#if OPT_SESSION_MGT +static void +die_callback(Widget w GCC_UNUSED, + XtPointer client_data GCC_UNUSED, + XtPointer call_data GCC_UNUSED) +{ + Cleanup(0); +} + +static void +save_callback(Widget w GCC_UNUSED, + XtPointer client_data GCC_UNUSED, + XtPointer call_data) +{ + XtCheckpointToken token = (XtCheckpointToken) call_data; + /* we have nothing to save */ + token->save_success = True; +} +#endif /* OPT_SESSION_MGT */ + +/* + * DeleteWindow(): Action proc to implement ICCCM delete_window. + */ +/* ARGSUSED */ +static void +DeleteWindow(Widget w, + XEvent * event GCC_UNUSED, + String * params GCC_UNUSED, + Cardinal *num_params GCC_UNUSED) +{ +#if OPT_TEK4014 + if (w == toplevel) { + if (term->screen.Tshow) + hide_vt_window(); + else + do_hangup(w, (XtPointer) 0, (XtPointer) 0); + } else if (term->screen.Vshow) + hide_tek_window(); + else +#endif + do_hangup(w, (XtPointer) 0, (XtPointer) 0); +} + +/* ARGSUSED */ +static void +KeyboardMapping(Widget w GCC_UNUSED, + XEvent * event, + String * params GCC_UNUSED, + Cardinal *num_params GCC_UNUSED) +{ + switch (event->type) { + case MappingNotify: + XRefreshKeyboardMapping(&event->xmapping); + break; + } +} + +static XtActionsRec actionProcs[] = +{ + {"DeleteWindow", DeleteWindow}, + {"KeyboardMapping", KeyboardMapping}, +}; + +/* + * Some platforms use names such as /dev/tty01, others /dev/pts/1. Parse off + * the "tty01" or "pts/1" portion, and return that for use as an identifier for + * utmp. + */ +static char * +my_pty_name(char *device) +{ + size_t len = strlen(device); + Bool name = False; + + while (len != 0) { + int ch = device[len - 1]; + if (isdigit(ch)) { + len--; + } else if (ch == '/') { + if (name) + break; + len--; + } else if (isalpha(ch)) { + name = True; + len--; + } else { + break; + } + } + TRACE(("my_pty_name(%s) -> '%s'\n", device, device + len)); + return device + len; +} + +/* + * If the name contains a '/', it is a "pts/1" case. Otherwise, return the + * last few characters for a utmp identifier. + */ +static char * +my_pty_id(char *device) +{ + char *name = my_pty_name(device); + char *leaf = x_basename(name); + + if (name == leaf) { /* no '/' in the name */ + int len = strlen(leaf); + if (PTYCHARLEN < len) + leaf = leaf + (len - PTYCHARLEN); + } + TRACE(("my_pty_id (%s) -> '%s'\n", device, leaf)); + return leaf; +} + +/* + * Set the tty/pty identifier + */ +static void +set_pty_id(char *device, char *id) +{ + char *name = my_pty_name(device); + char *leaf = x_basename(name); + + if (name == leaf) { + strcpy(my_pty_id(device), id); + } else { + strcpy(leaf, id); + } + TRACE(("set_pty_id(%s) -> '%s'\n", id, device)); +} + +/* + * The original -S option accepts two characters to identify the pty, and a + * file-descriptor (assumed to be nonzero). That is not general enough, so we + * check first if the option contains a '/' to delimit the two fields, and if + * not, fall-thru to the original logic. + */ +static Bool +ParseSccn(char *option) +{ + char *leaf = x_basename(option); + Bool code = False; + + if (leaf != option) { + if (leaf - option > 0 + && isdigit(CharOf(*leaf)) + && sscanf(leaf, "%d", &am_slave) == 1) { + size_t len = leaf - option - 1; + /* + * If we have a slash, we only care about the part after the slash, + * which is a file-descriptor. The part before the slash can be + * the /dev/pts/XXX value, but since we do not need to reopen it, + * it is useful mainly for display in a "ps -ef". + */ + strncpy(passedPty, option, len); + passedPty[len] = 0; + code = True; + } + } else { + code = (sscanf(option, "%c%c%d", + passedPty, passedPty + 1, &am_slave) == 3); + } + TRACE(("ParseSccn(%s) = '%s' %d (%s)\n", option, + passedPty, am_slave, code ? "OK" : "ERR")); + return code; +} + +#if defined(USE_SYSV_UTMP) && !defined(USE_UTEMPTER) +/* + * From "man utmp": + * xterm and other terminal emulators directly create a USER_PROCESS record + * and generate the ut_id by using the last two letters of /dev/ttyp%c or by + * using p%d for /dev/pts/%d. If they find a DEAD_PROCESS for this id, they + * recycle it, otherwise they create a new entry. If they can, they will mark + * it as DEAD_PROCESS on exiting and it is advised that they null ut_line, + * ut_time, ut_user and ut_host as well. + * + * Generally ut_id allows no more than 3 characters (plus null), even if the + * pty implementation allows more than 3 digits. + */ +static char * +my_utmp_id(char *device) +{ + typedef struct UTMP_STR UTMP_STRUCT; +#define UTIDSIZE (sizeof(((UTMP_STRUCT *)NULL)->ut_id)) + static char result[UTIDSIZE + 1]; + +#if defined(__SCO__) || defined(__UNIXWARE__) + /* + * Legend does not support old-style pty's, has no related compatibility + * issues, and can use the available space in ut_id differently from the + * default convention. + * + * This scheme is intended to avoid conflicts both with other users of + * utmpx as well as between multiple xterms. First, Legend uses all of the + * characters of ut_id, and adds no terminating NUL is required (the + * default scheme may add a trailing NUL). Second, all xterm entries will + * start with the letter 'x' followed by three digits, which will be the + * last three digits of the device name, regardless of the format of the + * device name, with leading 0's added where necessary. For instance, an + * xterm on /dev/pts/3 will have a ut_id of x003; an xterm on /dev/pts123 + * will have a ut_id of x123. Under the other convention, /dev/pts/3 would + * have a ut_id of p3 and /dev/pts123 would have a ut_id of p123. + */ + int len, n; + + len = strlen(device); + n = UTIDSIZE; + result[n] = '\0'; + while ((n > 0) && (len > 0) && isdigit(device[len - 1])) + result[--n] = device[--len]; + while (n > 0) + result[--n] = '0'; + result[0] = 'x'; +#else + char *name = my_pty_name(device); + char *leaf = x_basename(name); + size_t len = strlen(leaf); + + if ((UTIDSIZE - 1) < len) + leaf = leaf + (len - (UTIDSIZE - 1)); + sprintf(result, "p%s", leaf); +#endif + + TRACE(("my_utmp_id (%s) -> '%s'\n", device, result)); + return result; +} +#endif /* USE_SYSV_UTMP */ + +#ifdef USE_POSIX_SIGNALS + +typedef void (*sigfunc) (int); + +/* make sure we sure we ignore SIGCHLD for the cases parent + has just been stopped and not actually killed */ + +static sigfunc +posix_signal(int signo, sigfunc func) +{ + struct sigaction act, oact; + + act.sa_handler = func; + sigemptyset(&act.sa_mask); +#ifdef SA_RESTART + act.sa_flags = SA_NOCLDSTOP | SA_RESTART; +#else + act.sa_flags = SA_NOCLDSTOP; +#endif + if (sigaction(signo, &act, &oact) < 0) + return (SIG_ERR); + return (oact.sa_handler); +} + +#endif /* linux && _POSIX_SOURCE */ + +int +main(int argc, char *argv[]ENVP_ARG) +{ + Widget form_top, menu_top; + TScreen *screen; + int mode; + char *my_class = DEFCLASS; + Window winToEmbedInto = None; + +#ifdef DISABLE_SETUID + if (seteuid(getuid()) == -1) + exit(2); + if (setuid(getuid()) == -1) + exit(2); +#endif + + ProgramName = argv[0]; + + /* extra length in case longer tty name like /dev/ttyq255 */ + ttydev = TypeMallocN(char, sizeof(TTYDEV) + 80); +#ifdef USE_PTY_DEVICE + ptydev = TypeMallocN(char, sizeof(PTYDEV) + 80); + if (!ttydev || !ptydev) +#else + if (!ttydev) +#endif + { + fprintf(stderr, + "%s: unable to allocate memory for ttydev or ptydev\n", + ProgramName); + exit(1); + } + strcpy(ttydev, TTYDEV); +#ifdef USE_PTY_DEVICE + strcpy(ptydev, PTYDEV); +#endif + +#if defined(USE_UTMP_SETGID) + get_pty(NULL, NULL); + if (seteuid(getuid()) == -1) { + fprintf(stderr, + "%s: unable to change back euid\n", ProgramName); + exit(1); + } + if (setuid(getuid()) == -1) { + fprintf(stderr, + "%s: unable to change back uid\n", ProgramName); + exit(1); + } +#define get_pty(pty, from) really_get_pty(pty, from) +#endif + + /* Do these first, since we may not be able to open the display */ + TRACE_OPTS(xtermOptions, optionDescList, XtNumber(optionDescList)); + TRACE_ARGV("Before XtOpenApplication", argv); + if (argc > 1) { + int n; + unsigned unique = 2; + Bool quit = True; + + for (n = 1; n < argc; n++) { + TRACE(("parsing %s\n", argv[n])); + if (abbrev(argv[n], "-version", unique)) { + Version(); + } else if (abbrev(argv[n], "-help", unique)) { + Help(); + } else if (abbrev(argv[n], "-class", 3)) { + if ((my_class = argv[++n]) == 0) { + Help(); + } else { + quit = False; + } + unique = 3; + } else { + quit = False; + unique = 3; + } + } + if (quit) + exit(0); + } + + /* This dumps core on HP-UX 9.05 with X11R5 */ +#if OPT_I18N_SUPPORT + XtSetLanguageProc(NULL, NULL, NULL); +#endif + +#ifdef TERMIO_STRUCT /* { */ + /* 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). + */ + d_tio.c_iflag = ICRNL | IXON; +#ifdef TAB3 + d_tio.c_oflag = OPOST | ONLCR | TAB3; +#else +#ifdef ONLCR + d_tio.c_oflag = OPOST | ONLCR; +#else + d_tio.c_oflag = OPOST; +#endif +#endif +#if defined(macII) || defined(ATT) || defined(CRAY) /* { */ + d_tio.c_cflag = VAL_LINE_SPEED | CS8 | CREAD | PARENB | HUPCL; + d_tio.c_lflag = ISIG | ICANON | ECHO | ECHOE | ECHOK; +#ifdef ECHOKE + d_tio.c_lflag |= ECHOKE | IEXTEN; +#endif +#ifdef ECHOCTL + d_tio.c_lflag |= ECHOCTL | IEXTEN; +#endif + +#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; +#ifdef VSWTCH + d_tio.c_cc[VSWTCH] = CNUL; +#endif + +#if defined(USE_TERMIOS) || defined(USE_POSIX_TERMIOS) /* { */ + d_tio.c_cc[VSUSP] = CSUSP; +#ifdef VDSUSP + d_tio.c_cc[VDSUSP] = CDSUSP; +#endif + d_tio.c_cc[VREPRINT] = CRPRNT; + d_tio.c_cc[VDISCARD] = CFLUSH; + d_tio.c_cc[VWERASE] = CWERASE; + d_tio.c_cc[VLNEXT] = CLNEXT; + d_tio.c_cc[VMIN] = 1; + d_tio.c_cc[VTIME] = 0; +#endif /* } */ +#ifdef HAS_LTCHARS /* { */ + d_ltc.t_suspc = CSUSP; /* t_suspc */ + d_ltc.t_dsuspc = CDSUSP; /* t_dsuspc */ + d_ltc.t_rprntc = CRPRNT; + d_ltc.t_flushc = CFLUSH; + d_ltc.t_werasc = CWERASE; + d_ltc.t_lnextc = CLNEXT; +#endif /* } HAS_LTCHARS */ +#ifdef TIOCLSET /* { */ + d_lmode = 0; +#endif /* } TIOCLSET */ +#else /* }{ else !macII, ATT, CRAY */ +#ifndef USE_POSIX_TERMIOS +#ifdef BAUD_0 /* { */ + d_tio.c_cflag = CS8 | CREAD | PARENB | HUPCL; +#else /* }{ !BAUD_0 */ + d_tio.c_cflag = VAL_LINE_SPEED | CS8 | CREAD | PARENB | HUPCL; +#endif /* } !BAUD_0 */ +#else /* USE_POSIX_TERMIOS */ + d_tio.c_cflag = CS8 | CREAD | PARENB | HUPCL; + cfsetispeed(&d_tio, VAL_LINE_SPEED); + cfsetospeed(&d_tio, VAL_LINE_SPEED); +#endif + d_tio.c_lflag = ISIG | ICANON | ECHO | ECHOE | ECHOK; +#ifdef ECHOKE + d_tio.c_lflag |= ECHOKE | IEXTEN; +#endif +#ifdef ECHOCTL + d_tio.c_lflag |= ECHOCTL | IEXTEN; +#endif +#ifndef USE_POSIX_TERMIOS +#ifdef NTTYDISC + d_tio.c_line = NTTYDISC; +#else + d_tio.c_line = 0; +#endif +#endif /* USE_POSIX_TERMIOS */ +#ifdef __sgi + d_tio.c_cflag &= ~(HUPCL | PARENB); + d_tio.c_iflag |= BRKINT | ISTRIP | IGNPAR; +#endif +#ifdef __MVS__ + d_tio.c_cflag &= ~(HUPCL | PARENB); +#endif + d_tio.c_cc[VINTR] = CONTROL('C'); /* '^C' */ + d_tio.c_cc[VERASE] = 0x7f; /* DEL */ + d_tio.c_cc[VKILL] = CONTROL('U'); /* '^U' */ + d_tio.c_cc[VQUIT] = CQUIT; /* '^\' */ + d_tio.c_cc[VEOF] = CEOF; /* '^D' */ + d_tio.c_cc[VEOL] = CEOL; /* '^@' */ + d_tio.c_cc[VMIN] = 1; + d_tio.c_cc[VTIME] = 0; +#ifdef VSWTCH + d_tio.c_cc[VSWTCH] = CSWTCH; /* usually '^Z' */ +#endif +#ifdef VLNEXT + d_tio.c_cc[VLNEXT] = CLNEXT; +#endif +#ifdef VWERASE + d_tio.c_cc[VWERASE] = CWERASE; +#endif +#ifdef VREPRINT + d_tio.c_cc[VREPRINT] = CRPRNT; +#endif +#ifdef VRPRNT + d_tio.c_cc[VRPRNT] = CRPRNT; +#endif +#ifdef VDISCARD + d_tio.c_cc[VDISCARD] = CFLUSH; +#endif +#ifdef VFLUSHO + d_tio.c_cc[VFLUSHO] = CFLUSH; +#endif +#ifdef VSTOP + d_tio.c_cc[VSTOP] = CSTOP; +#endif +#ifdef VSTART + d_tio.c_cc[VSTART] = CSTART; +#endif +#ifdef VSUSP + d_tio.c_cc[VSUSP] = CSUSP; +#endif +#ifdef VDSUSP + d_tio.c_cc[VDSUSP] = CDSUSP; +#endif +#ifdef VSTATUS + d_tio.c_cc[VSTATUS] = CSTATUS; +#endif + /* now, try to inherit tty settings */ + { + int i; + + for (i = 0; i <= 2; i++) { + TERMIO_STRUCT deftio; + if (ttyGetAttr(i, &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 +#ifdef VEOL2 + d_tio.c_cc[VEOL2] = deftio.c_cc[VEOL2]; +#endif +#ifdef VLNEXT + d_tio.c_cc[VLNEXT] = deftio.c_cc[VLNEXT]; +#endif +#ifdef VWERASE + d_tio.c_cc[VWERASE] = deftio.c_cc[VWERASE]; +#endif +#ifdef VREPRINT + d_tio.c_cc[VREPRINT] = deftio.c_cc[VREPRINT]; +#endif +#ifdef VRPRNT + d_tio.c_cc[VRPRNT] = deftio.c_cc[VRPRNT]; +#endif +#ifdef VDISCARD + d_tio.c_cc[VDISCARD] = deftio.c_cc[VDISCARD]; +#endif +#ifdef VFLUSHO + d_tio.c_cc[VFLUSHO] = deftio.c_cc[VFLUSHO]; +#endif +#ifdef VSTOP + d_tio.c_cc[VSTOP] = deftio.c_cc[VSTOP]; +#endif +#ifdef VSTART + d_tio.c_cc[VSTART] = deftio.c_cc[VSTART]; +#endif +#ifdef VSUSP + d_tio.c_cc[VSUSP] = deftio.c_cc[VSUSP]; +#endif +#ifdef VDSUSP + d_tio.c_cc[VDSUSP] = deftio.c_cc[VDSUSP]; +#endif +#ifdef VSTATUS + d_tio.c_cc[VSTATUS] = deftio.c_cc[VSTATUS]; +#endif + break; + } + } + } +#ifdef HAS_LTCHARS /* { */ + d_ltc.t_suspc = CharOf('\000'); /* t_suspc */ + d_ltc.t_dsuspc = CharOf('\000'); /* t_dsuspc */ + d_ltc.t_rprntc = CharOf('\377'); /* reserved... */ + d_ltc.t_flushc = CharOf('\377'); + d_ltc.t_werasc = CharOf('\377'); + d_ltc.t_lnextc = CharOf('\377'); +#endif /* } HAS_LTCHARS */ +#if defined(USE_TERMIOS) || defined(USE_POSIX_TERMIOS) /* { */ + d_tio.c_cc[VSUSP] = CSUSP; +#ifdef VDSUSP + d_tio.c_cc[VDSUSP] = CharOf('\000'); +#endif +#ifdef VSTATUS + d_tio.c_cc[VSTATUS] = CharOf('\377'); +#endif +#ifdef VREPRINT + d_tio.c_cc[VREPRINT] = CharOf('\377'); +#endif +#ifdef VDISCARD + d_tio.c_cc[VDISCARD] = CharOf('\377'); +#endif +#ifdef VWERASE + d_tio.c_cc[VWERASE] = CharOf('\377'); +#endif +#ifdef VLNEXT + d_tio.c_cc[VLNEXT] = CharOf('\377'); +#endif +#endif /* } USE_TERMIOS */ +#ifdef TIOCLSET /* { */ + d_lmode = 0; +#endif /* } TIOCLSET */ +#endif /* } macII, ATT, CRAY */ +#endif /* } TERMIO_STRUCT */ + + /* Init the Toolkit. */ + { +#ifdef HAS_SAVED_IDS_AND_SETEUID + uid_t euid = geteuid(); + gid_t egid = getegid(); + uid_t ruid = getuid(); + gid_t rgid = getgid(); + + if (setegid(rgid) == -1) { +#ifdef __MVS__ + if (!(errno == EMVSERR)) /* could happen if _BPX_SHAREAS=REUSE */ +#endif + (void) fprintf(stderr, "setegid(%d): %s\n", + (int) rgid, strerror(errno)); + } + + if (seteuid(ruid) == -1) { +#ifdef __MVS__ + if (!(errno == EMVSERR)) +#endif + (void) fprintf(stderr, "seteuid(%d): %s\n", + (int) ruid, strerror(errno)); + } +#endif + + XtSetErrorHandler(xt_error); +#if OPT_SESSION_MGT + toplevel = XtOpenApplication(&app_con, my_class, + optionDescList, + XtNumber(optionDescList), + &argc, argv, fallback_resources, + sessionShellWidgetClass, + NULL, 0); +#else + toplevel = XtAppInitialize(&app_con, my_class, + optionDescList, + XtNumber(optionDescList), + &argc, argv, fallback_resources, + NULL, 0); +#endif /* OPT_SESSION_MGT */ + XtSetErrorHandler((XtErrorHandler) 0); + + XtGetApplicationResources(toplevel, (XtPointer) &resource, + application_resources, + XtNumber(application_resources), NULL, 0); + TRACE_XRES(); + +#ifdef HAS_SAVED_IDS_AND_SETEUID + if (seteuid(euid) == -1) { +#ifdef __MVS__ + if (!(errno == EMVSERR)) +#endif + (void) fprintf(stderr, "seteuid(%d): %s\n", + (int) euid, strerror(errno)); + } + + if (setegid(egid) == -1) { +#ifdef __MVS__ + if (!(errno == EMVSERR)) +#endif + (void) fprintf(stderr, "setegid(%d): %s\n", + (int) egid, strerror(errno)); + } +#endif + +#if defined(USE_UTMP_SETGID) + if (resource.utmpInhibit) { + /* Can totally revoke group privs */ + setegid(getgid()); + setgid(getgid()); + } +#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; + } + } +#if OPT_ZICONBEEP + zIconBeep = resource.zIconBeep; + zIconBeep_flagged = False; + if (zIconBeep > 100 || zIconBeep < -100) { + zIconBeep = 0; /* was 100, but I prefer to defaulting off. */ + fprintf(stderr, + "a number between -100 and 100 is required for zIconBeep. 0 used by default\n"); + } +#endif /* OPT_ZICONBEEP */ +#if OPT_SAME_NAME + sameName = resource.sameName; +#endif + hold_screen = resource.hold_screen ? 1 : 0; + xterm_name = resource.xterm_name; + if (strcmp(xterm_name, "-") == 0) + xterm_name = DFT_TERMTYPE; + 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); + +#if OPT_WIDE_CHARS + /* seems as good a place as any */ + init_classtab(); +#endif + + /* Parse the rest of the command line */ + TRACE_ARGV("After XtOpenApplication", argv); + for (argc--, argv++; argc > 0; argc--, argv++) { +#ifdef VMS + if (**argv != '-') + Syntax(*argv); +#else + if (**argv != '-') { + if (argc > 1) + Syntax(*argv); + if (command_to_exec == 0) /* if no "-e" option */ + explicit_shname = xtermFindShell(*argv, True); + continue; + } +#endif + + TRACE(("parsing %s\n", argv[0])); + switch (argv[0][1]) { + case 'h': /* -help */ + Help(); + continue; + case 'v': /* -version */ + Version(); + continue; + case 'C': +#if defined(TIOCCONS) || defined(SRIOCSREDIR) +#ifndef __sgi + { + 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; + } +#else /* __sgi */ + Console = True; +#endif /* __sgi */ +#endif /* TIOCCONS */ + continue; + case 'S': + if (!ParseSccn(*argv + 2)) + Syntax(*argv); + continue; +#ifdef DEBUG + case 'D': + debug = True; + continue; +#endif /* DEBUG */ + case 'c': /* -class param */ + if (strcmp(argv[0] + 1, "class") == 0) + argc--, argv++; + else + Syntax(*argv); + continue; + case 'e': + if (argc <= 1) + Syntax(*argv); + command_to_exec = ++argv; + break; + case 'i': + if (argc <= 1) { + Syntax(*argv); + } else { + char *endPtr; + --argc; + ++argv; + winToEmbedInto = (Window) strtol(argv[0], &endPtr, 10); + } + continue; + + default: + Syntax(*argv); + } + break; + } + + SetupMenus(toplevel, &form_top, &menu_top); + + term = (XtermWidget) XtVaCreateManagedWidget("vt100", xtermWidgetClass, + form_top, +#if OPT_TOOLBAR + XtNmenuBar, menu_top, + XtNresizable, True, + XtNfromVert, menu_top, + XtNleft, XawChainLeft, + XtNright, XawChainRight, + XtNtop, XawChainTop, + XtNbottom, XawChainBottom, +#endif + (XtPointer) 0); + decode_keyboard_type(&resource); + + screen = &term->screen; + screen->inhibit = 0; + +#ifdef ALLOWLOGGING + if (term->misc.logInhibit) + screen->inhibit |= I_LOG; +#endif + if (term->misc.signalInhibit) + screen->inhibit |= I_SIGNAL; +#if OPT_TEK4014 + if (term->misc.tekInhibit) + screen->inhibit |= I_TEK; +#endif + + /* + * We might start by showing the tek4014 window. + */ +#if OPT_TEK4014 + if (screen->inhibit & I_TEK) + screen->TekEmu = False; + + if (screen->TekEmu && !TekInit()) + SysError(ERROR_INIT); +#endif + + /* + * Start the toolbar at this point, after the first window has been setup. + */ +#if OPT_TOOLBAR + ShowToolbar(resource.toolBar); +#endif + +#if OPT_SESSION_MGT + if (resource.sessionMgt) { + TRACE(("Enabling session-management callbacks\n")); + XtAddCallback(toplevel, XtNdieCallback, die_callback, NULL); + XtAddCallback(toplevel, XtNsaveCallback, save_callback, NULL); + } +#endif + + /* + * Set title and icon name if not specified + */ + if (command_to_exec) { + Arg args[2]; + + if (!resource.title) { + if (command_to_exec) { + resource.title = x_basename(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); + + TRACE(("setting:\n\ttitle \"%s\"\n\ticon \"%s\"\n\tbased on command \"%s\"\n", + resource.title, + resource.icon_name, + *command_to_exec)); + + XtSetValues(toplevel, args, 2); + } +#if OPT_LUIT_PROG + if (term->misc.callfilter) { + int u = (term->misc.use_encoding ? 2 : 0); + if (command_to_exec) { + int n; + char **c; + for (n = 0, c = command_to_exec; *c; n++, c++) ; + c = TypeMallocN(char *, n + 3 + u); + if (c == NULL) + SysError(ERROR_LUMALLOC); + memcpy(c + 2 + u, command_to_exec, (n + 1) * sizeof(char *)); + c[0] = term->misc.localefilter; + if (u) { + c[1] = "-encoding"; + c[2] = term->misc.locale_str; + } + c[1 + u] = "--"; + command_to_exec_with_luit = c; + } else { + static char *luit[4]; + luit[0] = term->misc.localefilter; + if (u) { + luit[1] = "-encoding"; + luit[2] = term->misc.locale_str; + luit[3] = NULL; + } else + luit[1] = NULL; + command_to_exec_with_luit = luit; + } + } +#endif + +#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. */ + char dbglogfile[45]; + int i = -1; + if (debug) { + timestamp_filename(dbglogfile, "xterm.debug.log."); + if (creat_as(getuid(), getgid(), False, dbglogfile, 0666)) { + i = open(dbglogfile, O_WRONLY | O_TRUNC); + } + } + if (i >= 0) { + dup2(i, 2); + + /* mark this file as close on exec */ + (void) fcntl(i, F_SETFD, 1); + } + } +#endif /* DEBUG */ + + /* open a terminal for client */ + get_terminal(); + + spawn(); + +#ifndef VMS + /* Child process is out there, let's catch its termination */ + +#ifdef USE_POSIX_SIGNALS + (void) posix_signal(SIGCHLD, reapchild); +#else + (void) signal(SIGCHLD, reapchild); +#endif + /* Realize procs have now been executed */ + + if (am_slave >= 0) { /* Write window id so master end can read and use */ + char buf[80]; + + buf[0] = '\0'; + sprintf(buf, "%lx\n", XtWindow(SHELL_OF(CURRENT_EMU(screen)))); + write(screen->respond, buf, strlen(buf)); + } +#ifdef AIXV3 +#if (OSMAJORVERSION < 4) + /* 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. + */ + + { + TERMIO_STRUCT tio; + + if (ttyGetAttr(screen->respond, &tio) == -1) + SysError(ERROR_TIOCGETP); + + tio.c_cflag &= ~(CLOCAL); + + if (ttySetAttr(screen->respond, &tio) == -1) + SysError(ERROR_TIOCSETP); + } +#endif +#endif +#if defined(USE_ANY_SYSV_TERMIO) || defined(__MVS__) + if (0 > (mode = fcntl(screen->respond, F_GETFL, 0))) + SysError(ERROR_F_GETFL); +#ifdef O_NDELAY + mode |= O_NDELAY; +#else + mode |= O_NONBLOCK; +#endif /* O_NDELAY */ + if (fcntl(screen->respond, F_SETFL, mode)) + SysError(ERROR_F_SETFL); +#else /* !USE_ANY_SYSV_TERMIO */ + mode = 1; + if (ioctl(screen->respond, FIONBIO, (char *) &mode) == -1) + SysError(ERROR_FIONBIO); +#endif /* USE_ANY_SYSV_TERMIO, etc */ + + /* The erase character is used to delete the current completion */ +#if OPT_DABBREV +#ifdef TERMIO_STRUCT + screen->dabbrev_erase_char = d_tio.c_cc[VERASE]; +#else + screen->dabbrev_erase_char = d_sg.sg_erase; +#endif +#endif + + FD_ZERO(&pty_mask); + FD_ZERO(&X_mask); + FD_ZERO(&Select_mask); + FD_SET(screen->respond, &pty_mask); + FD_SET(ConnectionNumber(screen->display), &X_mask); + FD_SET(screen->respond, &Select_mask); + FD_SET(ConnectionNumber(screen->display), &Select_mask); + max_plus1 = ((screen->respond < ConnectionNumber(screen->display)) + ? (1 + ConnectionNumber(screen->display)) + : (1 + screen->respond)); + +#endif /* !VMS */ +#ifdef DEBUG + if (debug) + printf("debugging on\n"); +#endif /* DEBUG */ + XSetErrorHandler(xerror); + XSetIOErrorHandler(xioerror); + + initPtyData(&VTbuffer); +#ifdef ALLOWLOGGING + if (term->misc.log_on) { + StartLog(screen); + } +#endif + + if (winToEmbedInto != None) { + XtRealizeWidget(toplevel); + /* + * This should probably query the tree or check the attributes of + * winToEmbedInto in order to verify that it exists, but I'm still not + * certain what is the best way to do it -GPS + */ + XReparentWindow(XtDisplay(toplevel), + XtWindow(toplevel), + winToEmbedInto, 0, 0); + } + + for (;;) { +#if OPT_TEK4014 + if (screen->TekEmu) + TekRun(); + else +#endif + VTRun(); + } +} + +#if defined(__osf__) || (defined(__GLIBC__) && !defined(USE_USG_PTYS)) || defined(__FreeBSD__) || defined(__NetBSD__) || defined(__OpenBSD__) || defined(__APPLE__) +#define USE_OPENPTY 1 +static int opened_tty = -1; +#endif + +/* + * 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. + */ +static int +get_pty(int *pty, char *from GCC_UNUSED) +{ + int result = 1; + +#if defined(PUCC_PTYD) + + result = ((*pty = openrpty(ttydev, ptydev, + (resource.utmpInhibit ? OPTY_NOP : OPTY_LOGIN), + getuid(), from)) < 0); + +#elif defined(USE_OPENPTY) + + result = openpty(pty, &opened_tty, ttydev, NULL, NULL); + +#elif defined(__QNXNTO__) + + result = pty_search(pty); + +#else +#if defined(USE_ISPTS_FLAG) + + /* + 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. + */ + result = pty_search(pty); + if (!result) + IsPts = 0; + +#endif +#if defined(USE_USG_PTYS) || defined(__CYGWIN__) +#ifdef __GLIBC__ /* if __GLIBC__ and USE_USG_PTYS, we know glibc >= 2.1 */ + /* GNU libc 2 allows us to abstract away from having to know the + master pty device name. */ + if ((*pty = getpt()) >= 0) { + char *name = ptsname(*pty); + if (name != 0) { /* if filesystem is trashed, this may be null */ + strcpy(ttydev, name); + result = 0; + } + } +#elif defined(__MVS__) + result = pty_search(pty); +#else +#if defined(USE_ISPTS_FLAG) + if (result) { +#endif + result = ((*pty = open("/dev/ptmx", O_RDWR)) < 0); +#endif +#if defined(SVR4) || defined(__SCO__) || defined(USE_ISPTS_FLAG) + if (!result) + strcpy(ttydev, ptsname(*pty)); +#ifdef USE_ISPTS_FLAG + IsPts = !result; /* true if we're successful */ + } +#endif +#endif + +#elif defined(AIXV3) + + if ((*pty = open("/dev/ptc", O_RDWR)) >= 0) { + strcpy(ttydev, ttyname(*pty)); + result = 0; + } +#elif defined(__convex__) + + char *pty_name; + extern char *getpty(void); + + while ((pty_name = getpty()) != NULL) { + if ((*pty = open(pty_name, O_RDWR)) >= 0) { + strcpy(ptydev, pty_name); + strcpy(ttydev, pty_name); + *x_basename(ttydev) = 't'; + result = 0; + break; + } + } + +#elif defined(sequent) + + result = ((*pty = getpseudotty(&ttydev, &ptydev)) < 0); + +#elif defined(__sgi) && (OSMAJORVERSION >= 4) + + char *tty_name; + + tty_name = _getpty(pty, O_RDWR, 0622, 0); + if (tty_name != 0) { + strcpy(ttydev, tty_name); + result = 0; + } +#elif (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) { + result = 0; + sprintf(ttydev, "/dev/ttyq%d", minor(fstat_buf.st_rdev)); + } +#elif defined(__hpux) + + /* + * Use the clone device if it works, otherwise use pty_search logic. + */ + if ((*pty = open("/dev/ptym/clone", O_RDWR)) >= 0) { + char *name = ptsname(*pty); + if (name != 0) { + strcpy(ttydev, name); + result = 0; + } else { /* permissions, or other unexpected problem */ + close(*pty); + *pty = -1; + result = pty_search(pty); + } + } else { + result = pty_search(pty); + } + +#else + + result = pty_search(pty); + +#endif +#endif + + TRACE(("get_pty(ttydev=%s, ptydev=%s) %s fd=%d\n", + ttydev != 0 ? ttydev : "?", + ptydev != 0 ? ptydev : "?", + result ? "FAIL" : "OK", + pty != 0 ? *pty : -1)); + return result; +} + +static void +set_pty_permissions(uid_t uid, gid_t gid, mode_t mode) +{ +#ifdef USE_TTY_GROUP + struct group *ttygrp; + + if ((ttygrp = getgrnam(TTY_GROUP_NAME)) != 0) { + gid = ttygrp->gr_gid; + mode &= 0660U; + } + endgrent(); +#endif /* USE_TTY_GROUP */ + + set_owner(ttydev, uid, gid, mode); +} + +#ifdef get_pty /* USE_UTMP_SETGID */ +#undef get_pty +/* + * Call the real get_pty() before relinquishing root-setuid, caching the + * result. + */ +static int +get_pty(int *pty, char *from) +{ + static int m_pty = -1; + int result = -1; + + if (pty == NULL) { + result = really_get_pty(&m_pty, from); + + seteuid(0); + set_pty_permissions(getuid(), getgid(), 0600U); + seteuid(getuid()); + +#ifdef USE_OPENPTY + if (opened_tty >= 0) { + close(opened_tty); + opened_tty = -1; + } +#endif + } else if (m_pty != -1) { + *pty = m_pty; + result = 0; + } else { + result = -1; + } + return result; +} +#endif + +/* + * 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. + */ +#ifdef USE_PTY_SEARCH +static int +pty_search(int *pty) +{ + static int devindex = 0, letter = 0; + +#if defined(CRAY) || defined(__MVS__) + while (devindex < MAXPTTYS) { + sprintf(ttydev, TTYFORMAT, devindex); + sprintf(ptydev, PTYFORMAT, devindex); + devindex++; + + TRACE(("pty_search(ttydev=%s, ptydev=%s)\n", ttydev, ptydev)); + if ((*pty = open(ptydev, O_RDWR)) >= 0) { + return 0; + } + } +#else /* CRAY || __MVS__ */ + 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]; + devindex++; + + TRACE(("pty_search(ttydev=%s, ptydev=%s)\n", ttydev, ptydev)); + 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; + 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 /* USE_PTY_SEARCH */ + +/* + * sets up X and initializes the terminal structure except for term.buf.fildes. + */ +static void +get_terminal(void) +{ + TScreen *screen = &term->screen; + + screen->arrow = make_colored_cursor(XC_left_ptr, + T_COLOR(screen, MOUSE_FG), + T_COLOR(screen, MOUSE_BG)); +} + +/* + * 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. + */ + +#if OPT_TEK4014 +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 +}; +#endif + +/* 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 + DFT_TERMTYPE, /* for people who want special term name */ + "xterm", /* the prefered name, should be fastest */ + "vt102", + "vt100", + "ansi", + "dumb", + 0 +}; + +/* ARGSUSED */ +static SIGNAL_T +hungtty(int i GCC_UNUSED) +{ + siglongjmp(env, 1); + SIGNAL_RETURN; +} + +/* + * declared outside OPT_PTY_HANDSHAKE so HsSysError() callers can use + */ +static int cp_pipe[2]; /* this pipe is used for child to parent transfer */ + +#if OPT_PTY_HANDSHAKE +static int pc_pipe[2]; /* this pipe is used for parent to child transfer */ +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. + */ + +static void +HsSysError(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); +} + +void +first_map_occurred(void) +{ + handshake_t handshake; + 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 + */ +static void +HsSysError(int pf GCC_UNUSED, int error) +{ + fprintf(stderr, "%s: fatal pty error %d (errno=%d) on tty %s\n", + xterm_name, error, errno, ttydev); + exit(error); +} + +void +first_map_occurred(void) +{ + return; +} +#endif /* OPT_PTY_HANDSHAKE else !OPT_PTY_HANDSHAKE */ + +#ifndef VMS +static void +set_owner(char *device, uid_t uid, gid_t gid, mode_t mode) +{ + int why; + + TRACE(("set_owner(%s, uid=%d, gid=%d, mode=%#o\n", device, uid, gid, mode)); + + if (chown(device, uid, gid) < 0) { + why = errno; + if (why != ENOENT + && getuid() == 0) { + fprintf(stderr, "Cannot chown %s to %ld,%ld: %s\n", + device, (long) uid, (long) gid, + strerror(why)); + } + TRACE(("...chown failed: %s\n", strerror(why))); + } + if (chmod(device, mode) < 0) { + why = errno; + if (why != ENOENT) { + struct stat sb; + if (stat(device, &sb) < 0) { + fprintf(stderr, "Cannot chmod %s to %03o: %s\n", + device, (unsigned) mode, + strerror(why)); + } else if (mode != (sb.st_mode & 0777U)) { + fprintf(stderr, + "Cannot chmod %s to %03o currently %03o: %s\n", + device, (unsigned) mode, (sb.st_mode & 0777U), + strerror(why)); + TRACE(("...stat uid=%d, gid=%d, mode=%#o\n", + sb.st_uid, sb.st_gid, sb.st_mode)); + } + } + TRACE(("...chmod failed: %s\n", strerror(why))); + } +} + +#if defined(HAVE_UTMP) && defined(USE_SYSV_UTMP) && !defined(USE_UTEMPTER) +/* + * getutid() only looks at ut_type and ut_id. + * But we'll also check ut_line in find_utmp(). + */ +static void +init_utmp(int type, struct UTMP_STR *tofind) +{ + memset(tofind, 0, sizeof(*tofind)); + tofind->ut_type = type; + (void) strncpy(tofind->ut_id, my_utmp_id(ttydev), sizeof(tofind->ut_id)); + (void) strncpy(tofind->ut_line, my_pty_name(ttydev), sizeof(tofind->ut_line)); +} + +/* + * We could use getutline() if we didn't support old systems. + */ +static struct UTMP_STR * +find_utmp(struct UTMP_STR *tofind) +{ + struct UTMP_STR *result; + struct UTMP_STR working; + + for (;;) { + memset(&working, 0, sizeof(working)); + working.ut_type = tofind->ut_type; + memcpy(working.ut_id, tofind->ut_id, sizeof(tofind->ut_id)); +#if defined(__digital__) && defined(__unix__) && (defined(OSMAJORVERSION) && OSMAJORVERSION < 5) + working.ut_type = 0; +#endif + if ((result = call_getutid(&working)) == 0) + break; + if (!strcmp(result->ut_line, tofind->ut_line)) + break; + /* + * Solaris, IRIX64 and HPUX manpages say to fill the static area + * pointed to by the return-value to zeros if searching for multiple + * occurrences. Otherwise it will continue to return the same value. + */ + memset(result, 0, sizeof(*result)); + } + return result; +} +#endif /* HAVE_UTMP... */ + +#define close_fd(fd) close(fd), fd = -1 + +/* + * 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 + */ +static int +spawn(void) +{ + TScreen *screen = &term->screen; +#if OPT_PTY_HANDSHAKE + handshake_t handshake; + int done; +#endif +#if OPT_INITIAL_ERASE + int initial_erase = VAL_INITIAL_ERASE; +#endif + int rc = 0; + int ttyfd = -1; + +#ifdef TERMIO_STRUCT + TERMIO_STRUCT tio; +#ifdef __MVS__ + TERMIO_STRUCT gio; +#endif /* __MVS__ */ +#ifdef TIOCLSET + unsigned lmode; +#endif /* TIOCLSET */ +#ifdef HAS_LTCHARS + struct ltchars ltc; +#endif /* HAS_LTCHARS */ +#else /* !TERMIO_STRUCT */ + int ldisc = 0; + int discipline; + unsigned lmode; + struct tchars tc; + struct ltchars ltc; + struct sgttyb sg; +#ifdef sony + int jmode; + struct jtchars jtc; +#endif /* sony */ +#endif /* TERMIO_STRUCT */ + + char termcap[TERMCAP_SIZE]; + char newtc[TERMCAP_SIZE]; + char *ptr, *shname, *shname_minus; + int i, no_dev_tty = False; + char **envnew; /* new environment */ + int envsize; /* elements in new environment */ + char buf[64]; + char *TermName = NULL; +#ifdef TTYSIZE_STRUCT + TTYSIZE_STRUCT ts; +#endif + struct passwd *pw = NULL; + char *login_name = NULL; +#ifndef USE_UTEMPTER +#ifdef HAVE_UTMP + struct UTMP_STR utmp; +#ifdef USE_SYSV_UTMP + struct UTMP_STR *utret = NULL; +#endif +#ifdef USE_LASTLOG + struct lastlog lastlog; +#endif +#ifdef USE_LASTLOGX + struct lastlogx lastlog; +#endif /* USE_LASTLOG */ +#endif /* HAVE_UTMP */ +#endif /* !USE_UTEMPTER */ + + /* Noisy compilers (suppress some unused-variable warnings) */ + (void) rc; +#if defined(HAVE_UTMP) && defined(USE_SYSV_UTMP) && !defined(USE_UTEMPTER) + (void) utret; +#endif + + screen->uid = getuid(); + screen->gid = getgid(); + + termcap[0] = '\0'; + newtc[0] = '\0'; + +#ifdef SIGTTOU + /* so that TIOCSWINSZ || TIOCSIZE doesn't block */ + signal(SIGTTOU, SIG_IGN); +#endif + + if (am_slave >= 0) { + screen->respond = am_slave; + set_pty_id(ttydev, passedPty); +#ifdef USE_PTY_DEVICE + set_pty_id(ptydev, passedPty); +#endif + setgid(screen->gid); + setuid(screen->uid); + } else { + Bool tty_got_hung; + + /* + * 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 (!sigsetjmp(env, 1)) { + ttyfd = open("/dev/tty", O_RDWR); + alarm(0); + tty_got_hung = False; + } else { + tty_got_hung = True; + ttyfd = -1; + errno = ENXIO; + } +#if OPT_INITIAL_ERASE + initial_erase = VAL_INITIAL_ERASE; +#endif + 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. Solaris 2.3 is said to return EINVAL. + * Cygwin returns ENOENT. + */ + no_dev_tty = False; + if (ttyfd < 0) { + if (tty_got_hung || errno == ENXIO || errno == EIO || +#ifdef ENODEV + errno == ENODEV || +#endif +#ifdef __CYGWIN__ + errno == ENOENT || +#endif + errno == EINVAL || errno == ENOTTY || errno == EACCES) { + no_dev_tty = True; +#ifdef HAS_LTCHARS + ltc = d_ltc; +#endif /* HAS_LTCHARS */ +#ifdef TIOCLSET + lmode = d_lmode; +#endif /* TIOCLSET */ +#ifdef TERMIO_STRUCT + tio = d_tio; +#else /* !TERMIO_STRUCT */ + sg = d_sg; + tc = d_tc; + discipline = d_disipline; +#ifdef sony + jmode = d_jmode; + jtc = d_jtc; +#endif /* sony */ +#endif /* TERMIO_STRUCT */ + } 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 HAS_LTCHARS + if (ioctl(ttyfd, TIOCGLTC, <c) == -1) + ltc = d_ltc; +#endif /* HAS_LTCHARS */ +#ifdef TIOCLSET + if (ioctl(ttyfd, TIOCLGET, &lmode) == -1) + lmode = d_lmode; +#endif /* TIOCLSET */ +#ifdef TERMIO_STRUCT + if ((rc = ttyGetAttr(ttyfd, &tio)) == -1) + tio = d_tio; +#else /* !TERMIO_STRUCT */ + if ((rc = ioctl(ttyfd, TIOCGETP, (char *) &sg)) == -1) + sg = d_sg; + if (ioctl(ttyfd, TIOCGETC, (char *) &tc) == -1) + tc = d_tc; + if (ioctl(ttyfd, TIOCGETD, (char *) &discipline) == -1) + discipline = d_disipline; +#ifdef sony + if (ioctl(ttyfd, TIOCKGET, (char *) &jmode) == -1) + jmode = d_jmode; + if (ioctl(ttyfd, TIOCKGETC, (char *) &jtc) == -1) + jtc = d_jtc; +#endif /* sony */ +#endif /* TERMIO_STRUCT */ + + /* + * If ptyInitialErase is set, we want to get the pty's + * erase value. Just in case that will fail, first get + * the value from /dev/tty, so we will have something + * at least. + */ +#if OPT_INITIAL_ERASE + if (resource.ptyInitialErase) { +#ifdef TERMIO_STRUCT + initial_erase = tio.c_cc[VERASE]; +#else /* !TERMIO_STRUCT */ + initial_erase = sg.sg_erase; +#endif /* TERMIO_STRUCT */ + TRACE(("%s initial_erase:%d (from /dev/tty)\n", + rc == 0 ? "OK" : "FAIL", + initial_erase)); + } +#endif +#ifdef __MVS__ + if (ttyGetAttr(ttyfd, &gio) == 0) { + gio.c_cflag &= ~(HUPCL | PARENB); + ttySetAttr(ttyfd, &gio); + } +#endif /* __MVS__ */ + + close_fd(ttyfd); + } + + if (get_pty(&screen->respond, XDisplayString(screen->display))) { + SysError(ERROR_PTYS); + } +#if OPT_INITIAL_ERASE + if (resource.ptyInitialErase) { +#ifdef TERMIO_STRUCT + TERMIO_STRUCT my_tio; + if ((rc = ttyGetAttr(screen->respond, &my_tio)) == 0) + initial_erase = my_tio.c_cc[VERASE]; +#else /* !TERMIO_STRUCT */ + struct sgttyb my_sg; + if ((rc = ioctl(screen->respond, TIOCGETP, (char *) &my_sg)) == 0) + initial_erase = my_sg.sg_erase; +#endif /* TERMIO_STRUCT */ + TRACE(("%s initial_erase:%d (from pty)\n", + (rc == 0) ? "OK" : "FAIL", + initial_erase)); + } +#endif /* OPT_INITIAL_ERASE */ + } + + /* avoid double MapWindow requests */ + XtSetMappedWhenManaged(XtParent(CURRENT_EMU(screen)), False); + + wm_delete_window = XInternAtom(XtDisplay(toplevel), "WM_DELETE_WINDOW", + False); + + if (!TEK4014_ACTIVE(screen)) + 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(XtParent(CURRENT_EMU(screen)), + mit_console, CurrentTime, + ConvertConsoleSelection, NULL, NULL); + } +#endif +#if OPT_TEK4014 + if (screen->TekEmu) { + envnew = tekterm; + ptr = newtc; + } else +#endif + { + envnew = vtterm; + ptr = termcap; + } + + /* + * This used to exit if no termcap entry was found for the specified + * terminal name. That's a little unfriendly, so instead we'll allow + * the program to proceed (but not to set $TERMCAP) if the termcap + * entry is not found. + */ + if (!get_termcap(TermName = resource.term_name, ptr, newtc)) { + char *last = NULL; + TermName = *envnew; + while (*envnew != NULL) { + if ((last == NULL || strcmp(last, *envnew)) + && get_termcap(*envnew, ptr, newtc)) { + TermName = *envnew; + break; + } + last = *envnew; + envnew++; + } + } + + /* + * Check if ptyInitialErase is not set. If so, we rely on the termcap + * (or terminfo) to tell us what the erase mode should be set to. + */ +#if OPT_INITIAL_ERASE + TRACE(("resource ptyInitialErase is %sset\n", + resource.ptyInitialErase ? "" : "not ")); + if (!resource.ptyInitialErase) { + char temp[1024], *p = temp; + char *s = tgetstr(TERMCAP_ERASE, &p); + TRACE(("...extracting initial_erase value from termcap\n")); + if (s != 0) { + initial_erase = decode_keyvalue(&s, True); + } + } + TRACE(("...initial_erase:%d\n", initial_erase)); + + TRACE(("resource backarrowKeyIsErase is %sset\n", + resource.backarrow_is_erase ? "" : "not ")); + if (resource.backarrow_is_erase) { /* see input.c */ + if (initial_erase == 127) { + term->keyboard.flags &= ~MODE_DECBKM; + } else { + term->keyboard.flags |= MODE_DECBKM; + term->keyboard.reset_DECBKM = 1; + } + TRACE(("...sets DECBKM %s\n", + (term->keyboard.flags & MODE_DECBKM) ? "on" : "off")); + } else { + term->keyboard.reset_DECBKM = 2; + } +#endif /* OPT_INITIAL_ERASE */ + +#ifdef TTYSIZE_STRUCT + /* tell tty how big window is */ +#if OPT_TEK4014 + if (TEK4014_ACTIVE(screen)) { + TTYSIZE_ROWS(ts) = 38; + TTYSIZE_COLS(ts) = 81; +#if defined(USE_STRUCT_WINSIZE) + ts.ws_xpixel = TFullWidth(screen); + ts.ws_ypixel = TFullHeight(screen); +#endif + } else +#endif + { + TTYSIZE_ROWS(ts) = MaxRows(screen); + TTYSIZE_COLS(ts) = MaxCols(screen); +#if defined(USE_STRUCT_WINSIZE) + ts.ws_xpixel = FullWidth(screen); + ts.ws_ypixel = FullHeight(screen); +#endif + } + i = SET_TTYSIZE(screen->respond, ts); + TRACE(("spawn SET_TTYSIZE %dx%d return %d\n", + TTYSIZE_ROWS(ts), + TTYSIZE_COLS(ts), i)); +#endif /* TTYSIZE_STRUCT */ + + added_utmp_entry = False; +#if defined(USE_UTEMPTER) +#undef UTMP + if (!resource.utmpInhibit) { + struct UTMP_STR dummy; + + /* Note: utempter may trim it anyway */ + SetUtmpHost(dummy.ut_host, screen); + addToUtmp(ttydev, dummy.ut_host, screen->respond); + added_utmp_entry = True; + } +#endif + + if (am_slave < 0) { +#if OPT_PTY_HANDSHAKE + if (resource.ptyHandshake && (pipe(pc_pipe) || pipe(cp_pipe))) + SysError(ERROR_FORK); +#endif + TRACE(("Forking...\n")); + if ((screen->pid = fork()) == -1) + SysError(ERROR_FORK); + + if (screen->pid == 0) { + /* + * now in child process + */ + TRACE_CHILD +#if defined(_POSIX_SOURCE) || defined(SVR4) || defined(__convex__) || defined(__SCO__) || defined(__QNX__) + int pgrp = setsid(); /* variable may not be used... */ +#else + int pgrp = getpid(); +#endif + +#ifdef USE_USG_PTYS +#ifdef USE_ISPTS_FLAG + if (IsPts) { /* SYSV386 supports both, which did we open? */ +#endif + int ptyfd = 0; + char *pty_name = 0; + + setpgrp(); + grantpt(screen->respond); + unlockpt(screen->respond); + if ((pty_name = ptsname(screen->respond)) == 0) { + SysError(ERROR_PTSNAME); + } + if ((ptyfd = open(pty_name, O_RDWR)) < 0) { + SysError(ERROR_OPPTSNAME); + } +#ifdef I_PUSH + if (ioctl(ptyfd, I_PUSH, "ptem") < 0) { + SysError(ERROR_PTEM); + } +#if !defined(SVR4) && !(defined(SYSV) && defined(i386)) + if (!getenv("CONSEM") && ioctl(ptyfd, I_PUSH, "consem") < 0) { + SysError(ERROR_CONSEM); + } +#endif /* !SVR4 */ + if (ioctl(ptyfd, I_PUSH, "ldterm") < 0) { + SysError(ERROR_LDTERM); + } +#ifdef SVR4 /* from Sony */ + if (ioctl(ptyfd, I_PUSH, "ttcompat") < 0) { + SysError(ERROR_TTCOMPAT); + } +#endif /* SVR4 */ +#endif /* I_PUSH */ + ttyfd = ptyfd; +#ifndef __MVS__ + close_fd(screen->respond); +#endif /* __MVS__ */ + +#ifdef TTYSIZE_STRUCT + /* tell tty how big window is */ +#if OPT_TEK4014 + if (TEK4014_ACTIVE(screen)) { + TTYSIZE_ROWS(ts) = 24; + TTYSIZE_COLS(ts) = 80; +#ifdef USE_STRUCT_WINSIZE + ts.ws_xpixel = TFullWidth(screen); + ts.ws_ypixel = TFullHeight(screen); +#endif + } else +#endif /* OPT_TEK4014 */ + { + TTYSIZE_ROWS(ts) = MaxRows(screen); + TTYSIZE_COLS(ts) = MaxCols(screen); +#ifdef USE_STRUCT_WINSIZE + ts.ws_xpixel = FullWidth(screen); + ts.ws_ypixel = FullHeight(screen); +#endif + } +#endif /* TTYSIZE_STRUCT */ + +#ifdef USE_ISPTS_FLAG + } else { /* else pty, not pts */ +#endif +#endif /* USE_USG_PTYS */ + + (void) pgrp; /* not all branches use this variable */ + +#if OPT_PTY_HANDSHAKE /* warning, goes for a long ways */ + if (resource.ptyHandshake) { + /* 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(ConnectionNumber(screen->display)); +#ifndef __MVS__ + close(screen->respond); +#endif /* __MVS__ */ + + /* 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 */ + +#if defined(__QNX__) && !defined(__QNXNTO__) + qsetlogin(getlogin(), ttydev); +#endif + if (ttyfd >= 0) { +#ifdef __MVS__ + if (ttyGetAttr(ttyfd, &gio) == 0) { + gio.c_cflag &= ~(HUPCL | PARENB); + ttySetAttr(ttyfd, &gio); + } +#else /* !__MVS__ */ + close_fd(ttyfd); +#endif /* __MVS__ */ + } + + while (1) { +#if defined(TIOCNOTTY) && (!defined(__GLIBC__) || (__GLIBC__ < 2) || ((__GLIBC__ == 2) && (__GLIBC_MINOR__ < 1))) + if (!no_dev_tty + && (ttyfd = open("/dev/tty", O_RDWR)) >= 0) { + ioctl(ttyfd, TIOCNOTTY, (char *) NULL); + close_fd(ttyfd); + } +#endif /* TIOCNOTTY && !glibc >= 2.1 */ +#ifdef CSRG_BASED + (void) revoke(ttydev); +#endif + if ((ttyfd = open(ttydev, O_RDWR)) >= 0) { +#if defined(CRAY) && defined(TCSETCTTY) + /* make /dev/tty work */ + ioctl(ttyfd, TCSETCTTY, 0); +#endif +#ifdef USE_SYSV_PGRP + /* We need to make sure that we are actually + * 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) { + /* success! */ + close(i); + break; + } +#else /* USE_SYSV_PGRP */ + break; +#endif /* USE_SYSV_PGRP */ + } + perror("open ttydev"); +#ifdef TIOCSCTTY + ioctl(ttyfd, 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 = CastMallocN(char, strlen(handshake.buffer)); + if (ttydev == NULL) { + SysError(ERROR_SPREALLOC); + } + strcpy(ttydev, handshake.buffer); + } + + /* use the same tty name that everyone else will use + * (from ttyname) + */ + if ((ptr = ttyname(ttyfd)) != 0) { + /* it may be bigger */ + ttydev = TypeRealloc(char, strlen(ptr) + 1, ttydev); + if (ttydev == NULL) { + SysError(ERROR_SPREALLOC); + } + (void) strcpy(ttydev, ptr); + } + } +#endif /* OPT_PTY_HANDSHAKE -- from near fork */ + +#ifdef USE_ISPTS_FLAG + } /* end of IsPts else clause */ +#endif + + set_pty_permissions(screen->uid, + screen->gid, + (resource.messages + ? 0622U + : 0600U)); + + /* + * set up the tty modes + */ + { +#ifdef TERMIO_STRUCT +#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 (ttyGetAttr(ttyfd, &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; +#if OPT_WIDE_CHARS && defined(linux) && defined(IUTF8) +#if OPT_LUIT_PROG + if (command_to_exec_with_luit == 0) +#endif + if (screen->utf8_mode) + tio.c_iflag |= IUTF8; +#endif + /* ouput: cr->cr, nl is not return, no delays, ln->cr/nl */ +#ifndef USE_POSIX_TERMIOS + tio.c_oflag &= + ~(OCRNL + | ONLRET + | NLDLY + | CRDLY + | TABDLY + | BSDLY + | VTDLY + | FFDLY); +#endif /* USE_POSIX_TERMIOS */ +#ifdef ONLCR + tio.c_oflag |= ONLCR; +#endif /* ONLCR */ +#ifdef OPOST + tio.c_oflag |= OPOST; +#endif /* OPOST */ +#ifndef USE_POSIX_TERMIOS +# if defined(Lynx) && !defined(CBAUD) +# define CBAUD V_CBAUD +# endif + tio.c_cflag &= ~(CBAUD); +#ifdef BAUD_0 + /* baud rate is 0 (don't care) */ +#elif defined(HAVE_TERMIO_C_ISPEED) + tio.c_ispeed = tio.c_ospeed = VAL_LINE_SPEED; +#else /* !BAUD_0 */ + tio.c_cflag |= VAL_LINE_SPEED; +#endif /* !BAUD_0 */ +#else /* USE_POSIX_TERMIOS */ + cfsetispeed(&tio, VAL_LINE_SPEED); + cfsetospeed(&tio, VAL_LINE_SPEED); +#ifdef __MVS__ + /* turn off bits that can't be set from the slave side */ + tio.c_cflag &= ~(PACKET | PKT3270 | PTU3270 | PKTXTND); +#endif /* __MVS__ */ + /* Clear CLOCAL so that SIGHUP is sent to us + when the xterm ends */ + tio.c_cflag &= ~CLOCAL; +#endif /* USE_POSIX_TERMIOS */ + /* enable signals, canonical processing (erase, kill, etc), + * echo + */ + tio.c_lflag |= ISIG | ICANON | ECHO | ECHOE | ECHOK; +#ifdef ECHOKE + tio.c_lflag |= ECHOKE | IEXTEN; +#endif +#ifdef ECHOCTL + tio.c_lflag |= ECHOCTL | IEXTEN; +#endif +#ifndef __MVS__ + /* reset EOL to default value */ + tio.c_cc[VEOL] = CEOL; /* '^@' */ + /* certain shells (ksh & csh) change EOF as well */ + tio.c_cc[VEOF] = CEOF; /* '^D' */ +#else + if (tio.c_cc[VEOL] == 0) + tio.c_cc[VEOL] = CEOL; /* '^@' */ + if (tio.c_cc[VEOF] == 0) + tio.c_cc[VEOF] = CEOF; /* '^D' */ +#endif +#ifdef VLNEXT + tio.c_cc[VLNEXT] = CLNEXT; +#endif +#ifdef VWERASE + tio.c_cc[VWERASE] = CWERASE; +#endif +#ifdef VREPRINT + tio.c_cc[VREPRINT] = CRPRNT; +#endif +#ifdef VRPRNT + tio.c_cc[VRPRNT] = CRPRNT; +#endif +#ifdef VDISCARD + tio.c_cc[VDISCARD] = CFLUSH; +#endif +#ifdef VFLUSHO + tio.c_cc[VFLUSHO] = CFLUSH; +#endif +#ifdef VSTOP + tio.c_cc[VSTOP] = CSTOP; +#endif +#ifdef VSTART + tio.c_cc[VSTART] = CSTART; +#endif +#ifdef VSUSP + tio.c_cc[VSUSP] = CSUSP; +#endif +#ifdef VDSUSP + tio.c_cc[VDSUSP] = CDSUSP; +#endif + 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, tio.c_cc[VSWTCH]); +#endif +#ifdef VSUSP + TMODE(XTTYMODE_susp, tio.c_cc[VSUSP]); +#endif +#ifdef VDSUSP + TMODE(XTTYMODE_dsusp, tio.c_cc[VDSUSP]); +#endif +#ifdef VREPRINT + TMODE(XTTYMODE_rprnt, tio.c_cc[VREPRINT]); +#endif +#ifdef VRPRNT + TMODE(XTTYMODE_rprnt, tio.c_cc[VRPRNT]); +#endif +#ifdef VDISCARD + TMODE(XTTYMODE_flush, tio.c_cc[VDISCARD]); +#endif +#ifdef VFLUSHO + TMODE(XTTYMODE_flush, tio.c_cc[VFLUSHO]); +#endif +#ifdef VWERASE + TMODE(XTTYMODE_weras, tio.c_cc[VWERASE]); +#endif +#ifdef VLNEXT + TMODE(XTTYMODE_lnext, tio.c_cc[VLNEXT]); +#endif +#ifdef VSTART + TMODE(XTTYMODE_start, tio.c_cc[VSTART]); +#endif +#ifdef VSTOP + TMODE(XTTYMODE_stop, tio.c_cc[VSTOP]); +#endif +#ifdef VSTATUS + TMODE(XTTYMODE_status, tio.c_cc[VSTATUS]); +#endif +#ifdef VERASE2 + TMODE(XTTYMODE_erase2, tio.c_cc[VERASE2]); +#endif +#ifdef VEOL2 + TMODE(XTTYMODE_eol2, tio.c_cc[VEOL2]); +#endif +#ifdef HAS_LTCHARS + /* 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 + } +#ifdef HAS_LTCHARS +#ifdef __hpux + /* ioctl chokes when the "reserved" process group controls + * are not set to _POSIX_VDISABLE */ + ltc.t_rprntc = ltc.t_rprntc = ltc.t_flushc = + ltc.t_werasc = ltc.t_lnextc = _POSIX_VDISABLE; +#endif /* __hpux */ + if (ioctl(ttyfd, TIOCSLTC, <c) == -1) + HsSysError(cp_pipe[1], ERROR_TIOCSETC); +#endif /* HAS_LTCHARS */ +#ifdef TIOCLSET + if (ioctl(ttyfd, TIOCLSET, (char *) &lmode) == -1) + HsSysError(cp_pipe[1], ERROR_TIOCLSET); +#endif /* TIOCLSET */ + if (ttySetAttr(ttyfd, &tio) == -1) + HsSysError(cp_pipe[1], ERROR_TIOCSETP); + + /* ignore errors here - some platforms don't work */ + tio.c_cflag &= ~CSIZE; + if (screen->input_eight_bits) + tio.c_cflag |= CS8; + else + tio.c_cflag |= CS7; + (void) ttySetAttr(ttyfd, &tio); + +#else /* !TERMIO_STRUCT */ + 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 = VAL_LINE_SPEED; + sg.sg_ospeed = VAL_LINE_SPEED; + /* reset t_brkc to default value */ + tc.t_brkc = -1; +#ifdef LPASS8 + if (screen->input_eight_bits) + lmode |= LPASS8; + else + lmode &= ~(LPASS8); +#endif +#ifdef sony + jmode &= ~KM_KANJI; +#endif /* sony */ + + ltc = d_ltc; + + 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); + } + + if (ioctl(ttyfd, TIOCSETP, (char *) &sg) == -1) + HsSysError(cp_pipe[1], ERROR_TIOCSETP); + if (ioctl(ttyfd, TIOCSETC, (char *) &tc) == -1) + HsSysError(cp_pipe[1], ERROR_TIOCSETC); + if (ioctl(ttyfd, TIOCSETD, (char *) &discipline) == -1) + HsSysError(cp_pipe[1], ERROR_TIOCSETD); + if (ioctl(ttyfd, TIOCSLTC, (char *) <c) == -1) + HsSysError(cp_pipe[1], ERROR_TIOCSLTC); + if (ioctl(ttyfd, TIOCLSET, (char *) &lmode) == -1) + HsSysError(cp_pipe[1], ERROR_TIOCLSET); +#ifdef sony + if (ioctl(ttyfd, TIOCKSET, (char *) &jmode) == -1) + HsSysError(cp_pipe[1], ERROR_TIOCKSET); + if (ioctl(ttyfd, TIOCKSETC, (char *) &jtc) == -1) + HsSysError(cp_pipe[1], ERROR_TIOCKSETC); +#endif /* sony */ +#endif /* TERMIO_STRUCT */ +#if defined(TIOCCONS) || defined(SRIOCSREDIR) + if (Console) { +#ifdef TIOCCONS + int on = 1; + if (ioctl(ttyfd, TIOCCONS, (char *) &on) == -1) + fprintf(stderr, "%s: cannot open console: %s\n", + xterm_name, strerror(errno)); +#endif +#ifdef SRIOCSREDIR + int fd = open("/dev/console", O_RDWR); + if (fd == -1 || ioctl(fd, SRIOCSREDIR, ttyfd) == -1) + fprintf(stderr, "%s: cannot open console: %s\n", + xterm_name, strerror(errno)); + (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); + + /* + * If we're not asked to make the parent process set the + * terminal's erase mode, and if we had no ttyModes resource, + * then set the terminal's erase mode from our best guess. + */ +#if OPT_INITIAL_ERASE + TRACE(("check if we should set erase to %d:%s\n\tptyInitialErase:%d,\n\toveride_tty_modes:%d,\n\tXTTYMODE_erase:%d\n", + initial_erase, + (!resource.ptyInitialErase + && !override_tty_modes + && !ttymodelist[XTTYMODE_erase].set) + ? "YES" : "NO", + resource.ptyInitialErase, + override_tty_modes, + ttymodelist[XTTYMODE_erase].set)); + if (!resource.ptyInitialErase + && !override_tty_modes + && !ttymodelist[XTTYMODE_erase].set) { +#if OPT_TRACE + int old_erase; +#endif +#ifdef TERMIO_STRUCT + if (ttyGetAttr(ttyfd, &tio) == -1) + tio = d_tio; +#if OPT_TRACE + old_erase = tio.c_cc[VERASE]; +#endif + tio.c_cc[VERASE] = initial_erase; + rc = ttySetAttr(ttyfd, &tio); +#else /* !TERMIO_STRUCT */ + if (ioctl(ttyfd, TIOCGETP, (char *) &sg) == -1) + sg = d_sg; +#if OPT_TRACE + old_erase = sg.sg_erase; +#endif + sg.sg_erase = initial_erase; + rc = ioctl(ttyfd, TIOCSETP, (char *) &sg); +#endif /* TERMIO_STRUCT */ + TRACE(("%s setting erase to %d (was %d)\n", + rc ? "FAIL" : "OK", initial_erase, old_erase)); + } +#endif + + /* copy the environment before Setenv'ing */ + for (i = 0; environ[i] != NULL; i++) ; + /* compute number of xtermSetenv() calls below */ + envsize = 1; /* (NULL terminating entry) */ + envsize += 5; /* TERM, WINDOWID, DISPLAY, _SHELL, _VERSION */ +#ifdef HAVE_UTMP + envsize += 1; /* LOGNAME */ +#endif /* HAVE_UTMP */ +#ifdef USE_SYSV_ENVVARS + envsize += 2; /* COLUMNS, LINES */ +#ifdef HAVE_UTMP + envsize += 2; /* HOME, SHELL */ +#endif /* HAVE_UTMP */ +#ifdef OWN_TERMINFO_DIR + envsize += 1; /* TERMINFO */ +#endif +#else /* USE_SYSV_ENVVARS */ + envsize += 1; /* TERMCAP */ +#endif /* USE_SYSV_ENVVARS */ + envnew = TypeCallocN(char *, (unsigned) i + envsize); + memmove((char *) envnew, (char *) environ, i * sizeof(char *)); + environ = envnew; + xtermSetenv("TERM=", TermName); + if (!TermName) + *newtc = 0; + + sprintf(buf, "%lu", + ((unsigned long) XtWindow(SHELL_OF(CURRENT_EMU(screen))))); + xtermSetenv("WINDOWID=", buf); + + /* put the display into the environment of the shell */ + xtermSetenv("DISPLAY=", XDisplayString(screen->display)); + + xtermSetenv("XTERM_VERSION=", xtermVersion()); + + signal(SIGTERM, SIG_DFL); + + /* this is the time to go and set up stdin, out, and err + */ + { +#if defined(CRAY) && (OSMAJORVERSION >= 6) + close_fd(ttyfd); + + (void) close(0); + + if (open("/dev/tty", O_RDWR)) { + SysError(ERROR_OPDEVTTY); + } + (void) close(1); + (void) close(2); + dup(0); + dup(0); +#else + /* dup the tty */ + for (i = 0; i <= 2; i++) + if (i != ttyfd) { + (void) close(i); + (void) dup(ttyfd); + } +#ifndef ATT + /* and close the tty */ + if (ttyfd > 2) + close_fd(ttyfd); +#endif +#endif /* CRAY */ + } + +#if !defined(USE_SYSV_PGRP) +#ifdef TIOCSCTTY + setsid(); + ioctl(0, TIOCSCTTY, 0); +#endif + ioctl(0, TIOCSPGRP, (char *) &pgrp); + setpgrp(0, 0); + close(open(ttydev, O_WRONLY)); + setpgrp(0, pgrp); +#if defined(__QNX__) + tcsetpgrp(0, pgrp /*setsid() */ ); +#endif +#endif /* !USE_SYSV_PGRP */ + +#ifdef Lynx + { + TERMIO_STRUCT t; + if (ttyGetAttr(0, &t) >= 0) { + /* this gets lost somewhere on our way... */ + t.c_oflag |= OPOST; + ttySetAttr(0, &t); + } + } +#endif + +#ifdef HAVE_UTMP + pw = getpwuid(screen->uid); + login_name = NULL; + if (pw && pw->pw_name) { +#ifdef HAVE_GETLOGIN + /* + * If the value from getlogin() differs from the value we + * get by looking in the password file, check if it does + * correspond to the same uid. If so, allow that as an + * alias for the uid. + * + * Of course getlogin() will fail if we're started from + * a window-manager, since there's no controlling terminal + * to fuss with. In that case, try to get something useful + * from the user's $LOGNAME or $USER environment variables. + */ + if (((login_name = getlogin()) != NULL + || (login_name = getenv("LOGNAME")) != NULL + || (login_name = getenv("USER")) != NULL) + && strcmp(login_name, pw->pw_name)) { + struct passwd *pw2 = getpwnam(login_name); + if (pw2 != 0) { + uid_t uid2 = pw2->pw_uid; + pw = getpwuid(screen->uid); + if ((uid_t) pw->pw_uid != uid2) + login_name = NULL; + } else { + pw = getpwuid(screen->uid); + } + } +#endif + if (login_name == NULL) + login_name = pw->pw_name; + if (login_name != NULL) + login_name = x_strdup(login_name); + } + if (login_name != NULL) { + xtermSetenv("LOGNAME=", login_name); /* for POSIX */ + } +#ifndef USE_UTEMPTER +#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. + */ + (void) call_setutent(); + init_utmp(DEAD_PROCESS, &utmp); + + /* position to entry in utmp file */ + /* Test return value: beware of entries left behind: PSz 9 Mar 00 */ + if (!(utret = find_utmp(&utmp))) { + (void) call_setutent(); + init_utmp(USER_PROCESS, &utmp); + if (!(utret = find_utmp(&utmp))) { + (void) call_setutent(); + } + } +#if OPT_TRACE + if (!utret) + TRACE(("getutid: NULL\n")); + else + TRACE(("getutid: pid=%d type=%d user=%s line=%s id=%s\n", + utret->ut_pid, utret->ut_type, utret->ut_user, + utret->ut_line, utret->ut_id)); +#endif + + /* set up the new entry */ + utmp.ut_type = USER_PROCESS; +#ifdef HAVE_UTMP_UT_XSTATUS + utmp.ut_xstatus = 2; +#endif + (void) strncpy(utmp.ut_user, + (login_name != NULL) ? login_name : "????", + sizeof(utmp.ut_user)); + /* why are we copying this string again? (see above) */ + (void) strncpy(utmp.ut_id, my_utmp_id(ttydev), sizeof(utmp.ut_id)); + (void) strncpy(utmp.ut_line, + my_pty_name(ttydev), sizeof(utmp.ut_line)); + +#ifdef HAVE_UTMP_UT_HOST + SetUtmpHost(utmp.ut_host, screen); +#endif + (void) strncpy(utmp.ut_name, + (login_name) ? login_name : "????", + sizeof(utmp.ut_name)); + + utmp.ut_pid = getpid(); +#if defined(HAVE_UTMP_UT_XTIME) +#if defined(HAVE_UTMP_UT_SESSION) + utmp.ut_session = getsid(0); +#endif + 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) { + errno = 0; + call_pututline(&utmp); + TRACE(("pututline: id %s, line %s, pid %ld, errno %d %s\n", + utmp.ut_id, + utmp.ut_line, + (long) utmp.ut_pid, + errno, (errno != 0) ? strerror(errno) : "")); + } +#ifdef WTMP +#if defined(WTMPX_FILE) && (defined(SVR4) || defined(__SCO__)) + if (term->misc.login_shell) + updwtmpx(WTMPX_FILE, &utmp); +#elif defined(linux) && defined(__GLIBC__) && (__GLIBC__ >= 2) && !(defined(__powerpc__) && (__GLIBC__ == 2) && (__GLIBC_MINOR__ == 0)) + if (term->misc.login_shell) + call_updwtmp(etc_wtmp, &utmp); +#else + if (term->misc.login_shell && + (i = open(etc_wtmp, O_WRONLY | O_APPEND)) >= 0) { + write(i, (char *) &utmp, sizeof(utmp)); + close(i); + } +#endif +#endif + /* close the file */ + (void) call_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 (tslot > 0 && pw && !resource.utmpInhibit && + (i = open(etc_utmp, O_WRONLY)) >= 0) { + bzero((char *) &utmp, sizeof(utmp)); + (void) strncpy(utmp.ut_line, + my_pty_name(ttydev), + sizeof(utmp.ut_line)); + (void) strncpy(utmp.ut_name, login_name, + sizeof(utmp.ut_name)); +#ifdef HAVE_UTMP_UT_HOST + SetUtmpHost(utmp.ut_host, screen); +#endif + /* cast needed on Ultrix 4.4 */ + time((time_t *) & utmp.ut_time); + lseek(i, (long) (tslot * sizeof(utmp)), 0); + write(i, (char *) &utmp, sizeof(utmp)); + close(i); + added_utmp_entry = True; +#if defined(WTMP) + if (term->misc.login_shell && + (i = open(etc_wtmp, O_WRONLY | O_APPEND)) >= 0) { + int status; + status = write(i, (char *) &utmp, sizeof(utmp)); + status = close(i); + } +#elif defined(MNX_LASTLOG) + if (term->misc.login_shell && + (i = open(_U_LASTLOG, O_WRONLY)) >= 0) { + lseek(i, (long) (screen->uid * + sizeof(utmp)), 0); + write(i, (char *) &utmp, sizeof(utmp)); + close(i); + } +#endif /* WTMP or MNX_LASTLOG */ + } else + tslot = -tslot; + } + + /* Let's pass our ttyslot to our parent so that it can + * clean up after us. + */ +#if OPT_PTY_HANDSHAKE + if (resource.ptyHandshake) { + handshake.tty_slot = tslot; + } +#endif /* OPT_PTY_HANDSHAKE */ +#endif /* USE_SYSV_UTMP */ + +#ifdef USE_LASTLOGX + if (term->misc.login_shell) { + bzero((char *) &lastlog, sizeof(lastlog)); + (void) strncpy(lastlog.ll_line, + my_pty_name(ttydev), + sizeof(lastlog.ll_line)); + X_GETTIMEOFDAY(&lastlog.ll_tv); + SetUtmpHost(lastlog.ll_host, screen); + updlastlogx(_PATH_LASTLOGX, screen->uid, &lastlog); + } +#endif + +#ifdef USE_LASTLOG + if (term->misc.login_shell && + (i = open(etc_lastlog, O_WRONLY)) >= 0) { + bzero((char *) &lastlog, sizeof(struct lastlog)); + (void) strncpy(lastlog.ll_line, + my_pty_name(ttydev), + sizeof(lastlog.ll_line)); + SetUtmpHost(lastlog.ll_host, screen); + time(&lastlog.ll_time); + lseek(i, (long) (screen->uid * sizeof(struct lastlog)), 0); + write(i, (char *) &lastlog, sizeof(struct lastlog)); + close(i); + } +#endif /* USE_LASTLOG */ + +#if defined(USE_UTMP_SETGID) + /* Switch to real gid after writing utmp entry */ + utmpGid = getegid(); + if (getgid() != getegid()) { + utmpGid = getegid(); + setegid(getgid()); + TRACE(("switch to real gid %d after writing utmp\n", getgid())); + } +#endif + +#if OPT_PTY_HANDSHAKE + /* Let our parent know that we set up our utmp entry + * so that it can clean up after us. + */ + if (resource.ptyHandshake) { + handshake.status = UTMP_ADDED; + handshake.error = 0; + strcpy(handshake.buffer, ttydev); + (void) write(cp_pipe[1], (char *) &handshake, sizeof(handshake)); + } +#endif /* OPT_PTY_HANDSHAKE */ +#endif /* USE_UTEMPTER */ +#endif /* HAVE_UTMP */ + + (void) setgid(screen->gid); +#ifdef HAS_BSD_GROUPS + if (geteuid() == 0 && pw) { + if (initgroups(login_name, pw->pw_gid)) { + perror("initgroups failed"); + SysError(ERROR_INIGROUPS); + } + } +#endif + if (setuid(screen->uid)) { + SysError(ERROR_SETUID); + } +#if OPT_PTY_HANDSHAKE + if (resource.ptyHandshake) { + /* 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) { + set_max_row(screen, handshake.rows); + set_max_col(screen, handshake.cols); +#ifdef TTYSIZE_STRUCT + TTYSIZE_ROWS(ts) = MaxRows(screen); + TTYSIZE_COLS(ts) = MaxCols(screen); +#if defined(USE_STRUCT_WINSIZE) + ts.ws_xpixel = FullWidth(screen); + ts.ws_ypixel = FullHeight(screen); +#endif +#endif /* TTYSIZE_STRUCT */ + } + } + } +#endif /* OPT_PTY_HANDSHAKE */ + +#ifdef USE_SYSV_ENVVARS + { + char numbuf[12]; + sprintf(numbuf, "%d", MaxCols(screen)); + xtermSetenv("COLUMNS=", numbuf); + sprintf(numbuf, "%d", MaxRows(screen)); + xtermSetenv("LINES=", numbuf); + } +#ifdef HAVE_UTMP + if (pw) { /* SVR4 doesn't provide these */ + if (!getenv("HOME")) + xtermSetenv("HOME=", pw->pw_dir); + if (!getenv("SHELL")) + xtermSetenv("SHELL=", pw->pw_shell); + } +#endif /* HAVE_UTMP */ +#ifdef OWN_TERMINFO_DIR + xtermSetenv("TERMINFO=", OWN_TERMINFO_DIR); +#endif +#else /* USE_SYSV_ENVVARS */ + if (!TEK4014_ACTIVE(screen) && *newtc) { + strcpy(termcap, newtc); + resize(screen, termcap, newtc); + } + if (term->misc.titeInhibit && !term->misc.tiXtraScroll) { + 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"); + if (*newtc) + strcat(newtc, ":im=\\E[4h:ei=\\E[4l:mi:"); + } + if (*newtc) { +#if OPT_INITIAL_ERASE + unsigned len; + remove_termcap_entry(newtc, TERMCAP_ERASE "="); + len = strlen(newtc); + if (len != 0 && newtc[len - 1] == ':') + len--; + sprintf(newtc + len, ":%s=\\%03o:", + TERMCAP_ERASE, + CharOf(initial_erase)); +#endif + xtermSetenv("TERMCAP=", newtc); + } +#endif /* USE_SYSV_ENVVARS */ + + /* need to reset after all the ioctl bashing we did above */ +#if OPT_PTY_HANDSHAKE + if (resource.ptyHandshake) { +#ifdef TTYSIZE_STRUCT + i = SET_TTYSIZE(0, ts); + TRACE(("spawn SET_TTYSIZE %dx%d return %d\n", + TTYSIZE_ROWS(ts), + TTYSIZE_COLS(ts), i)); +#endif /* TTYSIZE_STRUCT */ + } +#endif /* OPT_PTY_HANDSHAKE */ + signal(SIGHUP, SIG_DFL); + + if ((ptr = explicit_shname) == NULL) { + if (((ptr = getenv("SHELL")) == NULL || *ptr == 0) && + ((pw == NULL && (pw = getpwuid(screen->uid)) == NULL) || + *(ptr = pw->pw_shell) == 0)) { + ptr = "/bin/sh"; + } + } else { + xtermSetenv("SHELL=", explicit_shname); + } + xtermSetenv("XTERM_SHELL=", ptr); + + shname = x_basename(ptr); + TRACE(("shell path '%s' leaf '%s'\n", ptr, shname)); + +#if OPT_LUIT_PROG + /* + * Use two copies of command_to_exec, in case luit is not actually + * there, or refuses to run. In that case we will fall-through to + * to command that the user gave anyway. + */ + if (command_to_exec_with_luit) { + xtermSetenv("XTERM_SHELL=", + xtermFindShell(*command_to_exec_with_luit, False)); + TRACE(("spawning command \"%s\"\n", *command_to_exec_with_luit)); + execvp(*command_to_exec_with_luit, command_to_exec_with_luit); + /* print error message on screen */ + fprintf(stderr, "%s: Can't execvp %s: %s\n", + xterm_name, *command_to_exec_with_luit, strerror(errno)); + fprintf(stderr, "%s: cannot support your locale.\n", + xterm_name); + } +#endif + if (command_to_exec) { + xtermSetenv("XTERM_SHELL=", + xtermFindShell(*command_to_exec, False)); + TRACE(("spawning command \"%s\"\n", *command_to_exec)); + execvp(*command_to_exec, command_to_exec); + if (command_to_exec[1] == 0) + execlp(ptr, shname, "-c", command_to_exec[0], (void *) 0); + /* print error message on screen */ + fprintf(stderr, "%s: Can't execvp %s: %s\n", + xterm_name, *command_to_exec, strerror(errno)); + } +#ifdef USE_SYSV_SIGHUP + /* fix pts sh hanging around */ + signal(SIGHUP, SIG_DFL); +#endif + + shname_minus = CastMallocN(char, strlen(shname) + 2); + (void) strcpy(shname_minus, "-"); + (void) strcat(shname_minus, shname); +#ifndef TERMIO_STRUCT + ldisc = XStrCmp("csh", shname + strlen(shname) - 3) == 0 ? + NTTYDISC : 0; + ioctl(0, TIOCSETD, (char *) &ldisc); +#endif /* !TERMIO_STRUCT */ + +#ifdef USE_LOGIN_DASH_P + if (term->misc.login_shell && pw && added_utmp_entry) + execl(bin_login, "login", "-p", "-f", login_name, (void *) 0); +#endif + execlp(ptr, + (term->misc.login_shell ? shname_minus : shname), + (void *) 0); + + /* Exec failed. */ + fprintf(stderr, "%s: Could not exec %s: %s\n", xterm_name, + ptr, strerror(errno)); + (void) sleep(5); + exit(ERROR_EXEC); + } + /* end if in child after fork */ +#if OPT_PTY_HANDSHAKE + if (resource.ptyHandshake) { + /* 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, XDisplayString(screen->display))) { + /* no more ptys! */ + fprintf(stderr, + "%s: child process can find no available ptys: %s\n", + xterm_name, strerror(errno)); + 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); + /*NOTREACHED */ + + 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 = x_strdup(handshake.buffer); + break; + default: + fprintf(stderr, "%s: unexpected handshake status %d\n", + xterm_name, + (int) handshake.status); + } + } + /* close our sides of the pipes */ + if (!waiting_for_initial_map) { + close(cp_pipe[0]); + close(pc_pipe[1]); + } + } +#endif /* OPT_PTY_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); +#elif defined(SYSV) || defined(__osf__) + /* 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 /* USE_SYSV_SIGNALS and not SIGTSTP */ + + return 0; +} /* end spawn */ + +SIGNAL_T +Exit(int n) +{ + TScreen *screen = &term->screen; + +#ifdef USE_UTEMPTER + if (!resource.utmpInhibit && added_utmp_entry) + removeFromUtmp(); +#elif defined(HAVE_UTMP) +#ifdef USE_SYSV_UTMP + struct UTMP_STR utmp; + struct UTMP_STR *utptr; + + /* don't do this more than once */ + if (xterm_exiting) + SIGNAL_RETURN; + xterm_exiting = True; + +#ifdef PUCC_PTYD + closepty(ttydev, ptydev, (resource.utmpInhibit ? OPTY_NOP : OPTY_LOGIN), screen->respond); +#endif /* PUCC_PTYD */ + + /* cleanup the utmp entry we forged earlier */ + if (!resource.utmpInhibit +#if OPT_PTY_HANDSHAKE /* without handshake, no way to know */ + && (resource.ptyHandshake && added_utmp_entry) +#endif /* OPT_PTY_HANDSHAKE */ + ) { +#if defined(USE_UTMP_SETGID) + if (utmpGid != -1) { + /* Switch back to group utmp */ + setegid(utmpGid); + TRACE(("switched back to group %d (check: %d)\n", + utmpGid, (int) getgid())); + } +#endif + init_utmp(USER_PROCESS, &utmp); + (void) call_setutent(); + + /* + * We could use getutline() if we didn't support old systems. + */ + while ((utptr = find_utmp(&utmp)) != 0) { + if (utptr->ut_pid == screen->pid) { + utptr->ut_type = DEAD_PROCESS; +#if defined(HAVE_UTMP_UT_XTIME) +#if defined(HAVE_UTMP_UT_SESSION) + utptr->ut_session = getsid(0); +#endif + utptr->ut_xtime = time((time_t *) 0); + utptr->ut_tv.tv_usec = 0; +#else + *utptr->ut_user = 0; + utptr->ut_time = time((time_t *) 0); +#endif + (void) call_pututline(utptr); +#ifdef WTMP +#if defined(WTMPX_FILE) && (defined(SVR4) || defined(__SCO__)) + if (term->misc.login_shell) + updwtmpx(WTMPX_FILE, utptr); +#elif defined(linux) && defined(__GLIBC__) && (__GLIBC__ >= 2) && !(defined(__powerpc__) && (__GLIBC__ == 2) && (__GLIBC_MINOR__ == 0)) + strncpy(utmp.ut_line, utptr->ut_line, sizeof(utmp.ut_line)); + if (term->misc.login_shell) + call_updwtmp(etc_wtmp, utptr); +#else + /* set wtmp entry if wtmp file exists */ + if (term->misc.login_shell) { + int fd; + if ((fd = open(etc_wtmp, O_WRONLY | O_APPEND)) >= 0) { + write(fd, utptr, sizeof(*utptr)); + close(fd); + } + } +#endif +#endif + break; + } + memset(utptr, 0, sizeof(*utptr)); /* keep searching */ + } + (void) call_endutent(); + } +#else /* not USE_SYSV_UTMP */ + int wfd; + struct utmp utmp; + + if (!resource.utmpInhibit && added_utmp_entry && + (am_slave < 0 && tslot > 0 && (wfd = open(etc_utmp, O_WRONLY)) >= 0)) { + bzero((char *) &utmp, sizeof(utmp)); + lseek(wfd, (long) (tslot * sizeof(utmp)), 0); + write(wfd, (char *) &utmp, sizeof(utmp)); + close(wfd); +#ifdef WTMP + if (term->misc.login_shell && + (wfd = open(etc_wtmp, O_WRONLY | O_APPEND)) >= 0) { + (void) strncpy(utmp.ut_line, + my_pty_name(ttydev), + sizeof(utmp.ut_line)); + time(&utmp.ut_time); + write(wfd, (char *) &utmp, sizeof(utmp)); + close(wfd); + } +#endif /* WTMP */ + } +#endif /* USE_SYSV_UTMP */ +#endif /* HAVE_UTMP */ + close(screen->respond); /* close explicitly to avoid race with slave side */ +#ifdef ALLOWLOGGING + if (screen->logging) + CloseLog(screen); +#endif + + if (am_slave < 0) { + /* restore ownership of tty and pty */ + set_owner(ttydev, 0, 0, 0666U); +#if (defined(USE_PTY_DEVICE) && !defined(__sgi) && !defined(__hpux)) + set_owner(ptydev, 0, 0, 0666U); +#endif + } +#if OPT_TRACE || defined(NO_LEAKS) + if (n == 0) { + TRACE(("Freeing memory leaks\n")); + if (term != 0) { + Display *dpy = term->screen.display; + + if (term->screen.sbuf_address) { + free(term->screen.sbuf_address); + TRACE(("freed screen.sbuf_address\n")); + } + if (term->screen.allbuf) { + free(term->screen.allbuf); + TRACE(("freed screen.allbuf\n")); + } + if (term->screen.xim) { + XCloseIM(term->screen.xim); + TRACE(("freed screen.xim\n")); + } + if (toplevel) { + XtDestroyWidget(toplevel); + TRACE(("destroyed top-level widget\n")); + } + XtCloseDisplay(dpy); + TRACE(("closed display\n")); + } + TRACE((0)); + } +#endif + + exit(n); + SIGNAL_RETURN; +} + +/* ARGSUSED */ +static void +resize(TScreen * screen, char *oldtc, char *newtc) +{ +#ifndef USE_SYSV_ENVVARS + char *ptr1, *ptr2; + size_t i; + int li_first = 0; + char *temp; + + TRACE(("resize %s\n", oldtc)); + if ((ptr1 = x_strindex(oldtc, "co#")) == NULL) { + strcat(oldtc, "co#80:"); + ptr1 = x_strindex(oldtc, "co#"); + } + if ((ptr2 = x_strindex(oldtc, "li#")) == NULL) { + strcat(oldtc, "li#24:"); + ptr2 = x_strindex(oldtc, "li#"); + } + if (ptr1 > ptr2) { + li_first++; + temp = ptr1; + ptr1 = ptr2; + ptr2 = temp; + } + ptr1 += 3; + ptr2 += 3; + strncpy(newtc, oldtc, i = ptr1 - oldtc); + temp = newtc + i; + sprintf(temp, "%d", (li_first + ? MaxRows(screen) + : MaxCols(screen))); + temp += strlen(temp); + ptr1 = strchr(ptr1, ':'); + strncpy(temp, ptr1, i = ptr2 - ptr1); + temp += i; + sprintf(temp, "%d", (li_first + ? MaxCols(screen) + : MaxRows(screen))); + ptr2 = strchr(ptr2, ':'); + strcat(temp, ptr2); + TRACE((" ==> %s\n", newtc)); +#endif /* USE_SYSV_ENVVARS */ +} + +#endif /* ! VMS */ + +/* + * 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(void) +{ +#ifdef USE_POSIX_WAIT + pid_t pid; + + pid = waitpid(-1, NULL, WNOHANG); +#elif 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)) */ +#if defined(Lynx) + int status; +#else + union wait status; +#endif + int pid; + + pid = wait3(&status, WNOHANG, (struct rusage *) NULL); +#endif /* USE_POSIX_WAIT else */ + return pid; +} + +#ifndef VMS + +/* ARGSUSED */ +static SIGNAL_T +reapchild(int n GCC_UNUSED) +{ + int olderrno = errno; + 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 + if (!hold_screen) + need_cleanup = TRUE; + } + } while ((pid = nonblocking_wait()) > 0); + + errno = olderrno; + SIGNAL_RETURN; +} +#endif /* !VMS */ + +static void +remove_termcap_entry(char *buf, char *str) +{ + char *base = buf; + char *first = base; + int count = 0; + size_t len = strlen(str); + + TRACE(("*** remove_termcap_entry('%s', '%s')\n", str, buf)); + + while (*buf != 0) { + if (!count && !strncmp(buf, str, len)) { + while (*buf != 0) { + if (*buf == '\\') + buf++; + else if (*buf == ':') + break; + if (*buf != 0) + buf++; + } + while ((*first++ = *buf++) != 0) ; + TRACE(("...removed_termcap_entry('%s', '%s')\n", str, base)); + return; + } else if (*buf == '\\') { + buf++; + } else if (*buf == ':') { + first = buf; + count = 0; + } else if (!isspace(CharOf(*buf))) { + count++; + } + if (*buf != 0) + buf++; + } + TRACE(("...cannot remove\n")); +} + +/* + * 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(char *s, struct _xttymodes *modelist) +{ + struct _xttymodes *mp; + int c; + int count = 0; + + TRACE(("parse_tty_modes\n")); + while (1) { + size_t len; + + while (*s && isascii(CharOf(*s)) && isspace(CharOf(*s))) + s++; + if (!*s) + return count; + + for (len = 0; isalnum(CharOf(s[len])); ++len) ; + for (mp = modelist; mp->name; mp++) { + if (len == mp->len + && strncmp(s, mp->name, mp->len) == 0) + break; + } + if (!mp->name) + return -1; + + s += mp->len; + while (*s && isascii(CharOf(*s)) && isspace(CharOf(*s))) + s++; + if (!*s) + return -1; + + if ((c = decode_keyvalue(&s, False)) != -1) { + mp->value = c; + mp->set = 1; + count++; + TRACE(("...parsed #%d: %s=%#x\n", count, mp->name, c)); + } + } +} + +#ifndef VMS /* don't use pipes on OpenVMS */ +int +GetBytesAvailable(int fd) +{ +#if defined(FIONREAD) + int arg; + ioctl(fd, FIONREAD, (char *) &arg); + return (int) arg; +#elif defined(__CYGWIN__) + fd_set set; + struct timeval timeout = + {0, 0}; + + FD_ZERO(&set); + FD_SET(fd, &set); + if (Select(fd + 1, &set, NULL, NULL, &timeout) > 0) + return 1; + else + return 0; +#elif defined(FIORDCK) + return (ioctl(fd, FIORDCHK, NULL)); +#else /* !FIORDCK */ + struct pollfd pollfds[1]; + + pollfds[0].fd = fd; + pollfds[0].events = POLLIN; + return poll(pollfds, 1, 0); +#endif +} +#endif /* !VMS */ + +/* Utility function to try to hide system differences from + everybody who used to call killpg() */ + +int +kill_process_group(int pid, int sig) +{ + TRACE(("kill_process_group(pid=%d, sig=%d)\n", pid, sig)); +#if defined(SVR4) || defined(SYSV) || !defined(X_NOT_POSIX) + return kill(-pid, sig); +#else + return killpg(pid, sig); +#endif +} + +#if OPT_EBCDIC +int +A2E(int x) +{ + char c; + c = x; + __atoe_l(&c, 1); + return c; +} + +int +E2A(int x) +{ + char c; + c = x; + __etoa_l(&c, 1); + return c; +} +#endif + +#if defined(__QNX__) && !defined(__QNXNTO__) +#include <sys/types.h> +#include <sys/proc_msg.h> +#include <sys/kernel.h> +#include <string.h> +#include <errno.h> + +struct _proc_session ps; +struct _proc_session_reply rps; + +int +qsetlogin(char *login, char *ttyname) +{ + int v = getsid(getpid()); + + memset(&ps, 0, sizeof(ps)); + memset(&rps, 0, sizeof(rps)); + + ps.type = _PROC_SESSION; + ps.subtype = _PROC_SUB_ACTION1; + ps.sid = v; + strcpy(ps.name, login); + + Send(1, &ps, &rps, sizeof(ps), sizeof(rps)); + + if (rps.status < 0) + return (rps.status); + + ps.type = _PROC_SESSION; + ps.subtype = _PROC_SUB_ACTION2; + ps.sid = v; + sprintf(ps.name, "//%d%s", getnid(), ttyname); + Send(1, &ps, &rps, sizeof(ps), sizeof(rps)); + + return (rps.status); +} +#endif |