diff options
Diffstat (limited to 'src/appl/telnet/telnetd/sys_term.c')
| -rw-r--r-- | src/appl/telnet/telnetd/sys_term.c | 1489 |
1 files changed, 0 insertions, 1489 deletions
diff --git a/src/appl/telnet/telnetd/sys_term.c b/src/appl/telnet/telnetd/sys_term.c deleted file mode 100644 index 1535ac8383..0000000000 --- a/src/appl/telnet/telnetd/sys_term.c +++ /dev/null @@ -1,1489 +0,0 @@ -/* - * Copyright (c) 1989, 1993 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -/* baesd on @(#)sys_term.c 8.1 (Berkeley) 6/4/93 */ - -#include "telnetd.h" -#include "pathnames.h" -#include <com_err.h> - -#ifndef LOGIN_PROGRAM -#define LOGIN_PROGRAM _PATH_LOGIN -#endif - -#include <libpty.h> -#if defined(AUTHENTICATION) -#include <libtelnet/auth.h> -#endif - -#if defined(KRB5) -#include "k5-int.h" -#endif - -char *login_program = LOGIN_PROGRAM; - -#ifdef NEWINIT -#include <initreq.h> -int utmp_len = MAXHOSTNAMELEN; /* sizeof(init_request.host) */ -#else /* NEWINIT*/ - -#ifdef HAVE_UTMP_H -#include <utmp.h> -#endif - -#ifdef _PATH_WTMP -char wtmpf[] = _PATH_WTMP; -#else -char wtmpf[] = "/usr/adm/wtmp"; -#endif - -#ifdef _PATH_UTMP -char utmpf[] = _PATH_UTMP; -#else -char utmpf[] = "/etc/utmp"; -#endif - -# ifdef CRAY -#include <tmpdir.h> -#include <sys/wait.h> -# if defined(_SC_CRAY_SECURE_SYS) && !defined(SCM_SECURITY) - /* - * UNICOS 6.0/6.1 do not have SCM_SECURITY defined, so we can - * use it to tell us to turn off all the socket security code, - * since that is only used in UNICOS 7.0 and later. - */ -# undef _SC_CRAY_SECURE_SYS -# endif - -# if defined(_SC_CRAY_SECURE_SYS) -#include <sys/sysv.h> -#include <sys/secstat.h> -extern int secflag; -extern struct sysv sysv; -# endif /* _SC_CRAY_SECURE_SYS */ -# endif /* CRAY */ -#endif /* NEWINIT */ - -#ifdef STREAMSPTY -#ifdef HAVE_SAC_H -#include <sac.h> -#endif -#include <sys/stropts.h> -#endif - -#define SCPYN(a, b) (void) strncpy(a, b, sizeof(a)) -#define SCMPN(a, b) strncmp(a, b, sizeof(a)) - -#ifdef HAVE_SYS_STREAM_H -#include <sys/stream.h> -#endif -#ifdef __hpux -#include <sys/resource.h> -#include <sys/proc.h> -#endif - /* For what platforms do we really need sys/tty.h? */ -#ifdef HAVE_SYS_TTY_H -#include <sys/tty.h> -#endif - -#ifdef t_erase -#undef t_erase -#undef t_kill -#undef t_intrc -#undef t_quitc -#undef t_startc -#undef t_stopc -#undef t_eofc -#undef t_brkc -#undef t_suspc -#undef t_dsuspc -#undef t_rprntc -#undef t_flushc -#undef t_werasc -#undef t_lnextc -#endif - -#if defined(UNICOS5) && defined(CRAY2) && !defined(EXTPROC) -# define EXTPROC 0400 -#endif - -#ifndef USE_TERMIO -struct termbuf { - struct sgttyb sg; - struct tchars tc; - struct ltchars ltc; - int state; - int lflags; -} termbuf, termbuf2; -# define cfsetospeed(tp, val) (tp)->sg.sg_ospeed = (val) -# define cfsetispeed(tp, val) (tp)->sg.sg_ispeed = (val) -# define cfgetospeed(tp) (tp)->sg.sg_ospeed -# define cfgetispeed(tp) (tp)->sg.sg_ispeed -#else /* USE_TERMIO */ -# ifdef SYSV_TERMIO -# define termios termio -# endif -# ifndef TCSANOW -# ifdef TCSETS -# define TCSANOW TCSETS -# define TCSADRAIN TCSETSW -# define tcgetattr(f, t) ioctl(f, TCGETS, (char *)t) -# else -# ifdef TCSETA -# define TCSANOW TCSETA -# define TCSADRAIN TCSETAW -# define tcgetattr(f, t) ioctl(f, TCGETA, (char *)t) -# else -# define TCSANOW TIOCSETA -# define TCSADRAIN TIOCSETAW -# define tcgetattr(f, t) ioctl(f, TIOCGETA, (char *)t) -# endif -# endif -# define tcsetattr(f, a, t) ioctl(f, a, t) -# define cfsetospeed(tp, val) (tp)->c_cflag &= ~CBAUD; \ - (tp)->c_cflag |= (val) -# define cfgetospeed(tp) ((tp)->c_cflag & CBAUD) -# ifdef CIBAUD -# define cfsetispeed(tp, val) (tp)->c_cflag &= ~CIBAUD; \ - (tp)->c_cflag |= ((val)<<IBSHIFT) -# define cfgetispeed(tp) (((tp)->c_cflag & CIBAUD)>>IBSHIFT) -# else -# define cfsetispeed(tp, val) (tp)->c_cflag &= ~CBAUD; \ - (tp)->c_cflag |= (val) -# define cfgetispeed(tp) ((tp)->c_cflag & CBAUD) -# endif -# endif /* TCSANOW */ -struct termios termbuf, termbuf2; /* pty control structure */ -# ifdef STREAMSPTY -int ttyfd = -1; -# endif -#endif /* USE_TERMIO */ - -#ifndef SETPGRP_TWOARG -#define setpgrp(a,b) setpgrp() -#endif - -int dup_tty(int); -static char **addarg(char **, char *); - -/* - * init_termbuf() - * copy_termbuf(cp) - * set_termbuf() - * - * These three routines are used to get and set the "termbuf" structure - * to and from the kernel. init_termbuf() gets the current settings. - * copy_termbuf() hands in a new "termbuf" to write to the kernel, and - * set_termbuf() writes the structure into the kernel. - */ - - void -init_termbuf() -{ -#ifndef USE_TERMIO - (void) ioctl(pty, TIOCGETP, (char *)&termbuf.sg); - (void) ioctl(pty, TIOCGETC, (char *)&termbuf.tc); - (void) ioctl(pty, TIOCGLTC, (char *)&termbuf.ltc); -# ifdef TIOCGSTATE - (void) ioctl(pty, TIOCGSTATE, (char *)&termbuf.state); -# endif -#else -# ifdef STREAMSPTY - (void) tcgetattr(ttyfd, &termbuf); -# else - (void) tcgetattr(pty, &termbuf); -# endif -#endif - termbuf2 = termbuf; -} - -#if defined(LINEMODE) && defined(TIOCPKT_IOCTL) - void -copy_termbuf(cp, len) - char *cp; - int len; -{ - if (len > sizeof(termbuf)) - len = sizeof(termbuf); - memcpy(&termbuf, cp, len); - termbuf2 = termbuf; -} -#endif /* defined(LINEMODE) && defined(TIOCPKT_IOCTL) */ - - void -set_termbuf() -{ - /* - * Only make the necessary changes. - */ -#ifndef USE_TERMIO - if (memcmp((char *)&termbuf.sg, (char *)&termbuf2.sg, sizeof(termbuf.sg))) - (void) ioctl(pty, TIOCSETN, (char *)&termbuf.sg); - if (memcmp((char *)&termbuf.tc, (char *)&termbuf2.tc, sizeof(termbuf.tc))) - (void) ioctl(pty, TIOCSETC, (char *)&termbuf.tc); - if (memcmp((char *)&termbuf.ltc, (char *)&termbuf2.ltc, - sizeof(termbuf.ltc))) - (void) ioctl(pty, TIOCSLTC, (char *)&termbuf.ltc); - if (termbuf.lflags != termbuf2.lflags) - (void) ioctl(pty, TIOCLSET, (char *)&termbuf.lflags); -#else /* USE_TERMIO */ - if (memcmp((char *)&termbuf, (char *)&termbuf2, sizeof(termbuf))) -# ifdef STREAMSPTY - (void) tcsetattr(ttyfd, TCSANOW, &termbuf); -# else - (void) tcsetattr(pty, TCSANOW, &termbuf); -# endif -# if defined(CRAY2) && defined(UNICOS5) - needtermstat = 1; -# endif -#endif /* USE_TERMIO */ -} - - -/* - * spcset(func, valp, valpp) - * - * This function takes various special characters (func), and - * sets *valp to the current value of that character, and - * *valpp to point to where in the "termbuf" structure that - * value is kept. - * - * It returns the SLC_ level of support for this function. - */ - -#ifndef USE_TERMIO - int -spcset(func, valp, valpp) - int func; - cc_t *valp; - cc_t **valpp; -{ - switch(func) { - case SLC_EOF: - *valp = termbuf.tc.t_eofc; - *valpp = (cc_t *)&termbuf.tc.t_eofc; - return(SLC_VARIABLE); - case SLC_EC: - *valp = termbuf.sg.sg_erase; - *valpp = (cc_t *)&termbuf.sg.sg_erase; - return(SLC_VARIABLE); - case SLC_EL: - *valp = termbuf.sg.sg_kill; - *valpp = (cc_t *)&termbuf.sg.sg_kill; - return(SLC_VARIABLE); - case SLC_IP: - *valp = termbuf.tc.t_intrc; - *valpp = (cc_t *)&termbuf.tc.t_intrc; - return(SLC_VARIABLE|SLC_FLUSHIN|SLC_FLUSHOUT); - case SLC_ABORT: - *valp = termbuf.tc.t_quitc; - *valpp = (cc_t *)&termbuf.tc.t_quitc; - return(SLC_VARIABLE|SLC_FLUSHIN|SLC_FLUSHOUT); - case SLC_XON: - *valp = termbuf.tc.t_startc; - *valpp = (cc_t *)&termbuf.tc.t_startc; - return(SLC_VARIABLE); - case SLC_XOFF: - *valp = termbuf.tc.t_stopc; - *valpp = (cc_t *)&termbuf.tc.t_stopc; - return(SLC_VARIABLE); - case SLC_AO: - *valp = termbuf.ltc.t_flushc; - *valpp = (cc_t *)&termbuf.ltc.t_flushc; - return(SLC_VARIABLE); - case SLC_SUSP: - *valp = termbuf.ltc.t_suspc; - *valpp = (cc_t *)&termbuf.ltc.t_suspc; - return(SLC_VARIABLE); - case SLC_EW: - *valp = termbuf.ltc.t_werasc; - *valpp = (cc_t *)&termbuf.ltc.t_werasc; - return(SLC_VARIABLE); - case SLC_RP: - *valp = termbuf.ltc.t_rprntc; - *valpp = (cc_t *)&termbuf.ltc.t_rprntc; - return(SLC_VARIABLE); - case SLC_LNEXT: - *valp = termbuf.ltc.t_lnextc; - *valpp = (cc_t *)&termbuf.ltc.t_lnextc; - return(SLC_VARIABLE); - case SLC_FORW1: - *valp = termbuf.tc.t_brkc; - *valpp = (cc_t *)&termbuf.ltc.t_lnextc; - return(SLC_VARIABLE); - case SLC_BRK: - case SLC_SYNCH: - case SLC_AYT: - case SLC_EOR: - *valp = (cc_t)0; - *valpp = (cc_t *)0; - return(SLC_DEFAULT); - default: - *valp = (cc_t)0; - *valpp = (cc_t *)0; - return(SLC_NOSUPPORT); - } -} - -#else /* USE_TERMIO */ - - int -spcset(func, valp, valpp) - int func; - cc_t *valp; - cc_t **valpp; -{ - -#define setval(a, b) *valp = termbuf.c_cc[a]; \ - *valpp = &termbuf.c_cc[a]; \ - return(b); -#define defval(a) *valp = ((cc_t)a); *valpp = (cc_t *)0; return(SLC_DEFAULT); - - switch(func) { - case SLC_EOF: - setval(VEOF, SLC_VARIABLE); - case SLC_EC: - setval(VERASE, SLC_VARIABLE); - case SLC_EL: - setval(VKILL, SLC_VARIABLE); - case SLC_IP: - setval(VINTR, SLC_VARIABLE|SLC_FLUSHIN|SLC_FLUSHOUT); - case SLC_ABORT: - setval(VQUIT, SLC_VARIABLE|SLC_FLUSHIN|SLC_FLUSHOUT); - case SLC_XON: -#ifdef VSTART - setval(VSTART, SLC_VARIABLE); -#else - defval(0x13); -#endif - case SLC_XOFF: -#ifdef VSTOP - setval(VSTOP, SLC_VARIABLE); -#else - defval(0x11); -#endif - case SLC_EW: -#ifdef VWERASE - setval(VWERASE, SLC_VARIABLE); -#else - defval(0); -#endif - case SLC_RP: -#ifdef VREPRINT - setval(VREPRINT, SLC_VARIABLE); -#else - defval(0); -#endif - case SLC_LNEXT: -#ifdef VLNEXT - setval(VLNEXT, SLC_VARIABLE); -#else - defval(0); -#endif - case SLC_AO: -#if !defined(VDISCARD) && defined(VFLUSHO) -# define VDISCARD VFLUSHO -#endif -#ifdef VDISCARD - setval(VDISCARD, SLC_VARIABLE|SLC_FLUSHOUT); -#else - defval(0); -#endif - case SLC_SUSP: -#ifdef VSUSP - setval(VSUSP, SLC_VARIABLE|SLC_FLUSHIN); -#else - defval(0); -#endif -#ifdef VEOL - case SLC_FORW1: - setval(VEOL, SLC_VARIABLE); -#endif -#ifdef VEOL2 - case SLC_FORW2: - setval(VEOL2, SLC_VARIABLE); -#endif - case SLC_AYT: -#ifdef VSTATUS - setval(VSTATUS, SLC_VARIABLE); -#else - defval(0); -#endif - - case SLC_BRK: - case SLC_SYNCH: - case SLC_EOR: - defval(0); - - default: - *valp = 0; - *valpp = 0; - return(SLC_NOSUPPORT); - } -} -#endif /* USE_TERMIO */ - -#ifdef CRAY -/* - * getnpty() - * - * Return the number of pty's configured into the system. - */ - int -getnpty() -{ -#ifdef _SC_CRAY_NPTY - int numptys; - - if ((numptys = sysconf(_SC_CRAY_NPTY)) != -1) - return numptys; - else -#endif /* _SC_CRAY_NPTY */ - return 128; -} -#endif /* CRAY */ - -#ifndef convex -/* - * getpty() - * - * Allocate a pty. As a side effect, the external character - * array "line" contains the name of the slave side. - * - * Returns the file descriptor of the opened pty. - */ -static char Xline[17]; -char *line = Xline; - -#ifdef CRAY -char *myline = "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"; -#endif /* CRAY */ - - -#endif /* convex */ - -static pid_t slavepid = 0; - -#ifdef LINEMODE -/* - * tty_flowmode() Find out if flow control is enabled or disabled. - * tty_linemode() Find out if linemode (external processing) is enabled. - * tty_setlinemod(on) Turn on/off linemode. - * tty_isecho() Find out if echoing is turned on. - * tty_setecho(on) Enable/disable character echoing. - * tty_israw() Find out if terminal is in RAW mode. - * tty_binaryin(on) Turn on/off BINARY on input. - * tty_binaryout(on) Turn on/off BINARY on output. - * tty_isediting() Find out if line editing is enabled. - * tty_istrapsig() Find out if signal trapping is enabled. - * tty_setedit(on) Turn on/off line editing. - * tty_setsig(on) Turn on/off signal trapping. - * tty_issofttab() Find out if tab expansion is enabled. - * tty_setsofttab(on) Turn on/off soft tab expansion. - * tty_islitecho() Find out if typed control chars are echoed literally - * tty_setlitecho() Turn on/off literal echo of control chars - * tty_tspeed(val) Set transmit speed to val. - * tty_rspeed(val) Set receive speed to val. - */ - -#ifdef convex -static int linestate; -#endif - - int -tty_linemode() -{ -#ifndef convex -#ifndef USE_TERMIO - return(termbuf.state & TS_EXTPROC); -#else - return(termbuf.c_lflag & EXTPROC); -#endif -#else - return(linestate); -#endif -} - - void -tty_setlinemode(on) - int on; -{ -#ifdef TIOCEXT -# ifndef convex - set_termbuf(); -# else - linestate = on; -# endif - (void) ioctl(pty, TIOCEXT, (char *)&on); -# ifndef convex - init_termbuf(); -# endif -#else /* !TIOCEXT */ -# ifdef EXTPROC - if (on) - termbuf.c_lflag |= EXTPROC; - else - termbuf.c_lflag &= ~EXTPROC; -# endif -#endif /* TIOCEXT */ -} -#endif /* LINEMODE */ - - int -tty_isecho() -{ -#ifndef USE_TERMIO - return (termbuf.sg.sg_flags & ECHO); -#else - return (termbuf.c_lflag & ECHO); -#endif -} - - int -tty_flowmode() -{ -#ifndef USE_TERMIO - return(((termbuf.tc.t_startc) > 0 && (termbuf.tc.t_stopc) > 0) ? 1 : 0); -#else - return((termbuf.c_iflag & IXON) ? 1 : 0); -#endif -} - - int -tty_restartany() -{ -#ifndef USE_TERMIO -# ifdef DECCTQ - return((termbuf.lflags & DECCTQ) ? 0 : 1); -# else - return(-1); -# endif -#else - return((termbuf.c_iflag & IXANY) ? 1 : 0); -#endif -} - - void -tty_setecho(on) - int on; -{ -#ifndef USE_TERMIO - if (on) - termbuf.sg.sg_flags |= ECHO|CRMOD; - else - termbuf.sg.sg_flags &= ~(ECHO|CRMOD); -#else - if (on) - termbuf.c_lflag |= ECHO; - else - termbuf.c_lflag &= ~ECHO; -#endif -} - - int -tty_israw() -{ -#ifndef USE_TERMIO - return(termbuf.sg.sg_flags & RAW); -#else - return(!(termbuf.c_lflag & ICANON)); -#endif -} - -#if defined (AUTHENTICATION) && defined(NO_LOGIN_F) && defined(LOGIN_R) - int -tty_setraw(on) -{ -# ifndef USE_TERMIO - if (on) - termbuf.sg.sg_flags |= RAW; - else - termbuf.sg.sg_flags &= ~RAW; -# else - if (on) - termbuf.c_lflag &= ~ICANON; - else - termbuf.c_lflag |= ICANON; -# endif -} -#endif - - void -tty_binaryin(on) - int on; -{ -#ifndef USE_TERMIO - if (on) - termbuf.lflags |= LPASS8; - else - termbuf.lflags &= ~LPASS8; -#else - if (on) { - termbuf.c_iflag &= ~ISTRIP; - } else { - termbuf.c_iflag |= ISTRIP; - } -#endif -} - - void -tty_binaryout(on) - int on; -{ -#ifndef USE_TERMIO - if (on) - termbuf.lflags |= LLITOUT; - else - termbuf.lflags &= ~LLITOUT; -#else - if (on) { - termbuf.c_cflag &= ~(CSIZE|PARENB); - termbuf.c_cflag |= CS8; - termbuf.c_oflag &= ~OPOST; - } else { - termbuf.c_cflag &= ~CSIZE; - termbuf.c_cflag |= CS7|PARENB; - termbuf.c_oflag |= OPOST; - } -#endif -} - - int -tty_isbinaryin() -{ -#ifndef USE_TERMIO - return(termbuf.lflags & LPASS8); -#else - return(!(termbuf.c_iflag & ISTRIP)); -#endif -} - - int -tty_isbinaryout() -{ -#ifndef USE_TERMIO - return(termbuf.lflags & LLITOUT); -#else - return(!(termbuf.c_oflag&OPOST)); -#endif -} - -#ifdef LINEMODE - int -tty_isediting() -{ -#ifndef USE_TERMIO - return(!(termbuf.sg.sg_flags & (CBREAK|RAW))); -#else - return(termbuf.c_lflag & ICANON); -#endif -} - - int -tty_istrapsig() -{ -#ifndef USE_TERMIO - return(!(termbuf.sg.sg_flags&RAW)); -#else - return(termbuf.c_lflag & ISIG); -#endif -} - - void -tty_setedit(on) - int on; -{ -#ifndef USE_TERMIO - if (on) - termbuf.sg.sg_flags &= ~CBREAK; - else - termbuf.sg.sg_flags |= CBREAK; -#else - if (on) - termbuf.c_lflag |= ICANON; - else - termbuf.c_lflag &= ~ICANON; -#endif -} - - void -tty_setsig(on) - int on; -{ -#ifndef USE_TERMIO - if (on) - ; -#else - if (on) - termbuf.c_lflag |= ISIG; - else - termbuf.c_lflag &= ~ISIG; -#endif -} -#endif /* LINEMODE */ - - int -tty_issofttab() -{ -#ifndef USE_TERMIO - return (termbuf.sg.sg_flags & XTABS); -#else -# ifdef OXTABS - return (termbuf.c_oflag & OXTABS); -# endif -# ifdef TABDLY - return ((termbuf.c_oflag & TABDLY) == TAB3); -# endif -#endif -} - - void -tty_setsofttab(on) - int on; -{ -#ifndef USE_TERMIO - if (on) - termbuf.sg.sg_flags |= XTABS; - else - termbuf.sg.sg_flags &= ~XTABS; -#else - if (on) { -# ifdef OXTABS - termbuf.c_oflag |= OXTABS; -# endif -# ifdef TABDLY - termbuf.c_oflag &= ~TABDLY; - termbuf.c_oflag |= TAB3; -# endif - } else { -# ifdef OXTABS - termbuf.c_oflag &= ~OXTABS; -# endif -# ifdef TABDLY - termbuf.c_oflag &= ~TABDLY; - termbuf.c_oflag |= TAB0; -# endif - } -#endif -} - - int -tty_islitecho() -{ -#ifndef USE_TERMIO - return (!(termbuf.lflags & LCTLECH)); -#else -# ifdef ECHOCTL - return (!(termbuf.c_lflag & ECHOCTL)); -# endif -# ifdef TCTLECH - return (!(termbuf.c_lflag & TCTLECH)); -# endif -# if !defined(ECHOCTL) && !defined(TCTLECH) - return (0); /* assumes ctl chars are echoed '^x' */ -# endif -#endif -} - - void -tty_setlitecho(on) - int on; -{ -#ifndef USE_TERMIO - if (on) - termbuf.lflags &= ~LCTLECH; - else - termbuf.lflags |= LCTLECH; -#else -# ifdef ECHOCTL - if (on) - termbuf.c_lflag &= ~ECHOCTL; - else - termbuf.c_lflag |= ECHOCTL; -# endif -# ifdef TCTLECH - if (on) - termbuf.c_lflag &= ~TCTLECH; - else - termbuf.c_lflag |= TCTLECH; -# endif -#endif -} - - int -tty_iscrnl() -{ -#ifndef USE_TERMIO - return (termbuf.sg.sg_flags & CRMOD); -#else - return (termbuf.c_iflag & ICRNL); -#endif -} - -/* - * A table of available terminal speeds - */ -struct termspeeds { - int speed; - speed_t value; -} termspeeds[] = { - { 0, B0 }, { 50, B50 }, { 75, B75 }, - { 110, B110 }, { 134, B134 }, { 150, B150 }, - { 200, B200 }, { 300, B300 }, { 600, B600 }, - { 1200, B1200 }, { 1800, B1800 }, { 2400, B2400 }, - { 4800, B4800 }, { 9600, B9600 }, { 19200, B9600 }, - { 38400, B9600 }, { -1, B9600 } -}; - - void -tty_tspeed(val) - int val; -{ - register struct termspeeds *tp; - - for (tp = termspeeds; (tp->speed != -1) && (val > tp->speed); tp++) - ; - cfsetospeed(&termbuf, tp->value); -} - - void -tty_rspeed(val) - int val; -{ - register struct termspeeds *tp; - - for (tp = termspeeds; (tp->speed != -1) && (val > tp->speed); tp++) - ; - cfsetispeed(&termbuf, tp->value); -} - -#if defined(CRAY2) && defined(UNICOS5) - int -tty_isnewmap() -{ - return((termbuf.c_oflag & OPOST) && (termbuf.c_oflag & ONLCR) && - !(termbuf.c_oflag & ONLRET)); -} -#endif - - -#ifndef NEWINIT -#endif - -/* - * getptyslave() - * - * Open the slave side of the pty, and do any initialization - * that is necessary. The return value is a file descriptor - * for the slave side. - */ -static void -getptyslave() -{ - int t = -1; - long retval; - -#if !defined(CRAY) || !defined(NEWINIT) -# ifdef LINEMODE - int waslm; -# endif -# ifdef TIOCGWINSZ - struct winsize ws; - extern int def_row, def_col; -# endif - extern int def_tspeed, def_rspeed; - /* - * Opening the slave side may cause initilization of the - * kernel tty structure. We need remember the state of - * if linemode was turned on - * terminal window size - * terminal speed - * so that we can re-set them if we need to. - */ -# ifdef LINEMODE - waslm = tty_linemode(); -# endif - - if ( (retval = pty_open_slave (line, &t)) != 0 ) - { - fatalperror(net, error_message(retval)); - } - -#ifdef STREAMSPTY -#ifdef USE_TERMIO - ttyfd = t; -#endif - if (ioctl(pty, I_PUSH, "pckt") < 0) { -#ifndef _AIX - fatal(net, "I_PUSH pckt"); -#endif - } -#endif - - /* - * set up the tty modes as we like them to be. - */ - init_termbuf(); -# ifdef TIOCGWINSZ - if (def_row || def_col) { - memset(&ws, 0, sizeof(ws)); - ws.ws_col = def_col; - ws.ws_row = def_row; - (void)ioctl(t, TIOCSWINSZ, (char *)&ws); - } -# endif - - /* - * Settings for sgtty based systems - */ -# ifndef USE_TERMIO - termbuf.sg.sg_flags |= CRMOD|ANYP|ECHO|XTABS; -# endif /* USE_TERMIO */ - - /* - * Settings for UNICOS (and HPUX) - */ -# if defined(CRAY) || defined(__hpux) - termbuf.c_oflag = OPOST|ONLCR|TAB3; - termbuf.c_iflag = IGNPAR|ISTRIP|ICRNL|IXON; - termbuf.c_lflag = ISIG|ICANON|ECHO|ECHOE|ECHOK; - termbuf.c_cflag = EXTB|HUPCL|CS8; -# endif - - /* - * Settings for all other termios/termio based - * systems, other than 4.4BSD. In 4.4BSD the - * kernel does the initial terminal setup. - */ -# if defined(USE_TERMIO) && !(defined(CRAY) || defined(__hpux)) && (BSD <= 43) -# ifndef OXTABS -# define OXTABS 0 -# endif - termbuf.c_lflag |= ECHO|ICANON|IEXTEN|ISIG; - termbuf.c_oflag |= ONLCR|OXTABS|OPOST; - termbuf.c_iflag |= ICRNL|IGNPAR; -termbuf.c_cflag |= HUPCL; - termbuf.c_iflag &= ~IXOFF; -# endif /* defined(USE_TERMIO) && !defined(CRAY) && (BSD <= 43) */ - tty_rspeed((def_rspeed > 0) ? def_rspeed : 9600); - tty_tspeed((def_tspeed > 0) ? def_tspeed : 9600); -# ifdef LINEMODE - if (waslm) - tty_setlinemode(1); -# endif /* LINEMODE */ - - /* - * Set the tty modes, and make this our controlling tty. - */ - set_termbuf(); - if (dup_tty(t) == -1) - fatalperror(net, "dup_tty"); -#endif /* !defined(CRAY) || !defined(NEWINIT) */ - if (net > 2) - (void) close(net); -#if defined(AUTHENTICATION) && defined(NO_LOGIN_F) && defined(LOGIN_R) - /* - * Leave the pty open so that we can write out the rlogin - * protocol for /bin/login, if the authentication works. - */ -#else - if (pty > 2) { - (void) close(pty); - pty = -1; - } -#endif -} - -#if !defined(CRAY) || !defined(NEWINIT) -#ifndef O_NOCTTY -#define O_NOCTTY 0 -#endif -#endif /* !defined(CRAY) || !defined(NEWINIT) */ - - - - int -dup_tty(t) - int t; -{ - if (t != 0) - (void) dup2(t, 0); - if (t != 1) - (void) dup2(t, 1); - if (t != 2) - (void) dup2(t, 2); - if (t > 2) - close(t); - return(0); -} - - -#ifdef NEWINIT -char *gen_id = "fe"; -#endif - -/* - * startslave(host) - * - * Given a hostname, do whatever - * is necessary to startup the login process on the slave side of the pty. - */ - - -/* ARGSUSED */ - void -startslave(host, autologin, autoname) - char *host; - int autologin; - char *autoname; -{ - int syncpipe[2]; - register int i; -#ifdef NEWINIT - extern char *ptyip; - struct init_request request; - void nologinproc(); - register int n; -#endif /* NEWINIT */ - - if ( pipe(syncpipe) < 0 ) - fatal(net, "failed getting synchronization pipe"); - -#if defined(AUTHENTICATION) - if (!autoname || !autoname[0]) - autologin = 0; - - if (autologin < auth_level) { - fatal(net, "Authorization failed"); - exit(1); - } -#endif - -#ifndef NEWINIT - - if ((i = fork()) < 0) - fatalperror(net, "fork"); - if (i) { - char c; - - void sigjob (int); - slavepid = i; /* So we can clean it up later */ -#ifdef CRAY - (void) signal(WJSIGNAL, sigjob); -#endif - - /* Wait for child before writing to parent side of pty.*/ - (void) close(syncpipe[1]); - if ( read(syncpipe[0], &c, 1) == 0 ) { - /* Slave side died */ - fatal ( net, "Slave failed to initialize"); - } - - close(syncpipe[0]); - - } else { - - pty_update_utmp (PTY_LOGIN_PROCESS, getpid(), "LOGIN", line, - host, PTY_TTYSLOT_USABLE); - getptyslave(); - - /* Notify our parent we're ready to continue.*/ - write(syncpipe[1],"y",1); - close(syncpipe[0]); - close(syncpipe[1]); - - start_login(host, autologin, autoname); - /*NOTREACHED*/ - } -#else /* NEWINIT */ - - /* - * Init will start up login process if we ask nicely. We only wait - * for it to start up and begin normal telnet operation. - */ - if ((i = open(INIT_FIFO, O_WRONLY)) < 0) { - char tbuf[128]; - (void) snprintf(tbuf, sizeof(tbuf), "Can't open %s\n", - INIT_FIFO); - fatalperror(net, tbuf); - } - memset(&request, 0, sizeof(request)); - request.magic = INIT_MAGIC; - SCPYN(request.gen_id, gen_id); - SCPYN(request.tty_id, &line[8]); - SCPYN(request.host, host); - SCPYN(request.term_type, *terminaltype ? terminaltype : "network"); -#if !defined(UNICOS5) - request.signal = SIGCLD; - request.pid = getpid(); -#endif -#ifdef BFTPDAEMON - /* - * Are we working as the bftp daemon? - */ - if (bftpd) { - SCPYN(request.exec_name, BFTPPATH); - } -#endif /* BFTPDAEMON */ - if (write(i, (char *)&request, sizeof(request)) < 0) { - char tbuf[128]; - (void) snprintf(tbuf, sizeof(tbuf), "Can't write to %s\n", - INIT_FIFO); - fatalperror(net, tbuf); - } - (void) close(i); - (void) signal(SIGALRM, nologinproc); - for (i = 0; ; i++) { - char tbuf[128]; - alarm(15); - n = read(pty, ptyip, BUFSIZ); - if (i == 3 || n >= 0 || !gotalarm) - break; - gotalarm = 0; - snprintf(tbuf, sizeof(tbuf), "telnetd: waiting for /etc/init to start login process on %s\r\n", line); - (void) write(net, tbuf, strlen(tbuf)); - } - if (n < 0 && gotalarm) - fatal(net, "/etc/init didn't start login process"); - pcc += n; - alarm(0); - (void) signal(SIGALRM, SIG_DFL); - - return; -#endif /* NEWINIT */ -} - -char *envinit[3]; -extern char **environ; - - void -init_env() -{ - extern char *getenv(); - char **envp; - - envp = envinit; - if ((*envp = getenv("TZ"))) - *envp++ -= 3; -#if defined(CRAY) || defined(__hpux) - else - *envp++ = "TZ=GMT0"; -#endif - *envp = 0; - environ = envinit; -} - -#ifndef NEWINIT - -/* - * start_login(host) - * - * Assuming that we are now running as a child processes, this - * function will turn us into the login process. - */ - - void -start_login(host, autologin, name) - char *host; - int autologin; - char *name; -{ - register char **argv; - extern char *getenv(); - -#ifdef SOLARIS - char *term; - char termbuf[64]; -#endif - - - /* - * -h : pass on name of host. - * WARNING: -h is accepted by login if and only if - * getuid() == 0. - * -p : don't clobber the environment (so terminal type stays set). - * - * -f : force this login, he has already been authenticated - */ - argv = addarg(0, "login"); - -#if !defined(NO_LOGIN_H) - -# if defined (AUTHENTICATION) && defined(NO_LOGIN_F) && defined(LOGIN_R) - /* - * Don't add the "-h host" option if we are going - * to be adding the "-r host" option down below... - */ - if ((auth_level < 0) || (autologin != AUTH_VALID)) -# endif - { - argv = addarg(argv, "-h"); - argv = addarg(argv, host); -#ifdef SOLARIS - /* - * SVR4 version of -h takes TERM= as second arg, or - - */ - term = getenv("TERM"); - if (term == NULL || term[0] == 0) { - term = "-"; - } else { - snprintf(termbuf, sizeof(termbuf), "TERM=%s", term); - term = termbuf; - } - argv = addarg(argv, term); -#endif - } -#endif -#if !defined(NO_LOGIN_P) - argv = addarg(argv, "-p"); -#endif -#ifdef BFTPDAEMON - /* - * Are we working as the bftp daemon? If so, then ask login - * to start bftp instead of shell. - */ - if (bftpd) { - argv = addarg(argv, "-e"); - argv = addarg(argv, BFTPPATH); - } else -#endif -#if defined (SecurID) - /* - * don't worry about the -f that might get sent. - * A -s is supposed to override it anyhow. - */ - if (require_SecurID) - argv = addarg(argv, "-s"); -#endif -#if defined (AUTHENTICATION) - if (auth_level >= 0 && autologin == AUTH_VALID) { - if (name[0] == '-') { - /* - * Authenticated and authorized to log in to an - * account starting with '-'? Even if that - * unlikely case comes to pass, the current login - * program will not parse the resulting command - * line properly. - */ - syslog(LOG_ERR, "user name cannot start with '-'"); - fatal(net, "user name cannot start with '-'"); - exit(1); - } -# if !defined(NO_LOGIN_F) -#if defined(LOGIN_CAP_F) - argv = addarg(argv, "-F"); -#else - argv = addarg(argv, "-f"); -#endif - argv = addarg(argv, "--"); - argv = addarg(argv, name); -# else -# if defined(LOGIN_R) - /* - * We don't have support for "login -f", but we - * can fool /bin/login into thinking that we are - * rlogind, and allow us to log in without a - * password. The rlogin protocol expects - * local-user\0remote-user\0term/speed\0 - */ - - if (pty > 2) { - register char *cp; - char speed[1024]; - int isecho, israw, xpty, len; - extern int def_rspeed; -# ifndef LOGIN_HOST - /* - * Tell login that we are coming from "localhost". - * If we passed in the real host name, then the - * user would have to allow .rhost access from - * every machine that they want authenticated - * access to work from, which sort of defeats - * the purpose of an authenticated login... - * So, we tell login that the session is coming - * from "localhost", and the user will only have - * to have "localhost" in their .rhost file. - */ -# define LOGIN_HOST "localhost" -# endif - argv = addarg(argv, "-r"); - argv = addarg(argv, LOGIN_HOST); - - xpty = pty; -# ifndef STREAMSPTY - pty = 0; -# else - ttyfd = 0; -# endif - init_termbuf(); - isecho = tty_isecho(); - israw = tty_israw(); - if (isecho || !israw) { - tty_setecho(0); /* Turn off echo */ - tty_setraw(1); /* Turn on raw */ - set_termbuf(); - } - len = strlen(name)+1; - write(xpty, name, len); - write(xpty, name, len); - memset(speed, 0, sizeof(speed)); - snprintf(speed, sizeof(speed), "%s/%d", - (cp = getenv("TERM")) ? cp : "", - (def_rspeed > 0) ? def_rspeed : 9600); - len = strlen(speed)+1; - write(xpty, speed, len); - - if (isecho || !israw) { - init_termbuf(); - tty_setecho(isecho); - tty_setraw(israw); - set_termbuf(); - if (!israw) { - /* - * Write a newline to ensure - * that login will be able to - * read the line... - */ - write(xpty, "\n", 1); - } - } - pty = xpty; - } -# else - argv = addarg(argv, "--"); - argv = addarg(argv, name); -# endif -# endif - } else -#endif - if (getenv("USER")) { - char *user = getenv("USER"); - if (user[0] == '-') { - /* "telnet -l-x ..." */ - syslog(LOG_ERR, "user name cannot start with '-'"); - fatal(net, "user name cannot start with '-'"); - exit(1); - } - argv = addarg(argv, "--"); - argv = addarg(argv, user); -#if defined(LOGIN_ARGS) && defined(NO_LOGIN_P) - { - register char **cpp; - for (cpp = environ; *cpp; cpp++) - if ((*cpp)[0] != '-') - argv = addarg(argv, *cpp); - } -#endif - /* - * Assume that login will set the USER variable - * correctly. For SysV systems, this means that - * USER will no longer be set, just LOGNAME by - * login. (The problem is that if the auto-login - * fails, and the user then specifies a different - * account name, he can get logged in with both - * LOGNAME and USER in his environment, but the - * USER value will be wrong. - */ - unsetenv("USER"); - } -#if defined(AUTHENTICATION) && defined(NO_LOGIN_F) && defined(LOGIN_R) - if (pty > 2) - close(pty); -#endif - closelog(); - execv(login_program, argv); - - syslog(LOG_ERR, "%s: %m", login_program); - fatalperror(net, login_program); - /*NOTREACHED*/ -} - -/* - * This code returns a pointer to the first element of the array and - * expects the same to be called with. - * Therefore the -1 reference is legal. - */ - -static char ** -addarg(argv, val) - register char **argv; - register char *val; -{ - register char **cpp; - - if (argv == NULL) { - /* - * 10 entries, a leading length, and a null - */ - argv = (char **)malloc(sizeof(*argv) * 12); - if (argv == NULL) - return(NULL); - *argv++ = (char *)10; - *argv = (char *)0; - } - for (cpp = argv; *cpp; cpp++) - ; - if (cpp == &argv[(long)argv[-1]]) { - --argv; - *argv = (char *)((long)(*argv) + 10); - argv = (char **)realloc(argv, sizeof(*argv) * ((long)(*argv) + 2)); - if (argv == NULL) - return(NULL); - argv++; - cpp = &argv[(long)argv[-1] - 10]; - } - *cpp++ = val; - *cpp = 0; - return(argv); -} -#endif /* NEWINIT */ - -/* - * cleanup() - * - * This is the routine to call when we are all through, to - * clean up anything that needs to be cleaned up. - */ - /* ARGSUSED */ - void -cleanup(sig) - int sig; -{ - pty_cleanup(line,slavepid,1); -#ifdef KRB5 - kerberos5_cleanup(); -#endif - - (void) shutdown(net, 2); - exit(1); -} |