#define LOGIN_PROGRAM _PATH_LOGIN
#endif
+#include <libpty.h>
#if defined(AUTHENTICATION)
#include <libtelnet/auth.h>
#endif
char *myline = "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0";
#endif /* CRAY */
- int
-getpty(ptynum)
-int *ptynum;
-{
- register int p;
-#ifdef STREAMSPTY
- int t;
- char *ptsname();
-
- p = open("/dev/ptmx", 2);
- if (p > 0) {
- grantpt(p);
- unlockpt(p);
- strcpy(line, ptsname(p));
- return(p);
- }
-
-#else /* ! STREAMSPTY */
-#ifdef _AIX
- if((p = open("/dev/ptc", 2)) != -1 ){
- strcpy(line, ttyname(p));
- chown( line, 0, 0);
- chmod (line, 0600 );
- return (p);
- }
- #else /*_AIX*/
-#ifndef CRAY
- register char *cp, *p1, *p2;
- register int i;
-#if defined(sun) && defined(TIOCGPGRP) && BSD < 199207
- int dummy;
-#endif
-
-#ifndef __hpux
- (void) sprintf(line, "/dev/ptyXX");
- p1 = &line[8];
- p2 = &line[9];
-#else
- (void) sprintf(line, "/dev/ptym/ptyXX");
- p1 = &line[13];
- p2 = &line[14];
-#endif
- for (cp = "pqrstuvwxyzPQRST"; *cp; cp++) {
- struct stat stb;
-
- *p1 = *cp;
- *p2 = '0';
- /*
- * This stat() check is just to keep us from
- * looping through all 256 combinations if there
- * aren't that many ptys available.
- */
- if (stat(line, &stb) < 0)
- break;
- for (i = 0; i < 16; i++) {
- *p2 = "0123456789abcdef"[i];
- p = open(line, 2);
- if (p > 0) {
-#ifndef __hpux
- line[5] = 't';
-#else
- for (p1 = &line[8]; *p1; p1++)
- *p1 = *(p1+1);
- line[9] = 't';
-#endif
- chown(line, 0, 0);
- chmod(line, 0600);
-#if defined(sun) && defined(TIOCGPGRP) && BSD < 199207
- if (ioctl(p, TIOCGPGRP, &dummy) == 0
- || errno != EIO) {
- chmod(line, 0666);
- close(p);
- line[5] = 'p';
- } else
-#endif /* defined(sun) && defined(TIOCGPGRP) && BSD < 199207 */
- return(p);
- }
- }
- }
-#else /* CRAY */
- extern lowpty, highpty;
- struct stat sb;
-
- for (*ptynum = lowpty; *ptynum <= highpty; (*ptynum)++) {
- (void) sprintf(myline, "/dev/pty/%03d", *ptynum);
- p = open(myline, 2);
- if (p < 0)
- continue;
- (void) sprintf(line, "/dev/ttyp%03d", *ptynum);
- /*
- * Here are some shenanigans to make sure that there
- * are no listeners lurking on the line.
- */
- if(stat(line, &sb) < 0) {
- (void) close(p);
- continue;
- }
- if(sb.st_uid || sb.st_gid || sb.st_mode != 0600) {
- chown(line, 0, 0);
- chmod(line, 0600);
- (void)close(p);
- p = open(myline, 2);
- if (p < 0)
- continue;
- }
- /*
- * Now it should be safe...check for accessability.
- */
- if (access(line, 6) == 0)
- return(p);
- else {
- /* no tty side to pty so skip it */
- (void) close(p);
- }
- }
-#endif /* CRAY */
-#endif /*_AIX*/
-#endif /* STREAMSPTY */
- return(-1);
-}
#endif /* convex */
-#ifdef LINEMODE
+static char
+int slavepid = 0;
+
/*
* tty_flowmode() Find out if flow control is enabled or disabled.
* tty_linemode() Find out if linemode (external processing) is enabled.
int
getptyslave()
{
- register int t = -1;
+ int t = -1;
+ long retval;
#if !defined(CRAY) || !defined(NEWINIT)
# ifdef LINEMODE
waslm = tty_linemode();
# endif
-
- /*
- * Make sure that we don't have a controlling tty, and
- * that we are the session (process group) leader.
- */
-# ifdef TIOCNOTTY
- t = open(_PATH_TTY, O_RDWR);
- if (t >= 0) {
- (void) ioctl(t, TIOCNOTTY, (char *)0);
- (void) close(t);
- }
-# endif
-
-
-# ifdef PARENT_DOES_UTMP
- /*
- * Wait for our parent to get the utmp stuff to get done.
- */
- utmp_sig_wait();
-# endif
-
- t = cleanopen(line);
- if (t < 0)
+ if ( (retval = pty_open_slave (line, &t)) < 0 )
+ {
+ com_err(retval, "telnetd", "while opening slave terminal");
fatalperror(net, line);
+ }
#ifdef STREAMSPTY
#ifdef USE_TERMIO
ttyfd = t;
#endif
- if (ioctl(t, I_PUSH, "ptem") < 0)
- fatal(net, "I_PUSH ptem");
- if (ioctl(t, I_PUSH, "ldterm") < 0)
- fatal(net, "I_PUSH ldterm");
- if (ioctl(t, I_PUSH, "ttcompat") < 0)
- fatal(net, "I_PUSH ttcompat");
if (ioctl(pty, I_PUSH, "pckt") < 0)
fatal(net, "I_PUSH pckt");
#endif
# ifndef OXTABS
# define OXTABS 0
# endif
- termbuf.c_lflag |= ECHO;
- termbuf.c_oflag |= ONLCR|OXTABS;
- termbuf.c_iflag |= ICRNL;
+ 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);
#ifndef O_NOCTTY
#define O_NOCTTY 0
#endif
-/*
- * Open the specified slave side of the pty,
- * making sure that we have a clean tty.
- */
- int
-cleanopen(line)
- char *line;
-{
- register int t;
-#if defined(_SC_CRAY_SECURE_SYS)
- struct secstat secbuf;
-#endif /* _SC_CRAY_SECURE_SYS */
-
-#ifndef STREAMSPTY
- /*
- * Make sure that other people can't open the
- * slave side of the connection.
- */
- (void) chown(line, 0, 0);
- (void) chmod(line, 0600);
-#endif
-
-# if (!defined(CRAY) && (BSD > 43))||defined(_AIX)
- (void) revoke(line);
-# endif
-#if defined(_SC_CRAY_SECURE_SYS)
- if (secflag) {
- if (secstat(line, &secbuf) < 0)
- return(-1);
- if (setulvl(secbuf.st_slevel) < 0)
- return(-1);
- if (setucmp(secbuf.st_compart) < 0)
- return(-1);
- }
-#endif /* _SC_CRAY_SECURE_SYS */
-
- t = open(line, O_RDWR|O_NOCTTY);
-
-#if defined(_SC_CRAY_SECURE_SYS)
- if (secflag) {
- if (setulvl(sysv.sy_minlvl) < 0)
- return(-1);
- if (setucmp(0) < 0)
- return(-1);
- }
-#endif /* _SC_CRAY_SECURE_SYS */
-
- if (t < 0)
- return(-1);
-
- /*
- * Hangup anybody else using this ttyp, then reopen it for
- * ourselves.
- */
-# if !(defined(CRAY) || defined(__hpux)) && (BSD <= 43) && !defined(STREAMSPTY)
- (void) signal(SIGHUP, SIG_IGN);
-#ifdef HAVE_VHANGUP
- vhangup();
-#endif
- (void) signal(SIGHUP, SIG_DFL);
- t = open(line, O_RDWR|O_NOCTTY);
- if (t < 0)
- return(-1);
-# endif
-# if defined(CRAY) && defined(TCVHUP)
- {
- register int i;
- (void) signal(SIGHUP, SIG_IGN);
- (void) ioctl(t, TCVHUP, (char *)0);
- (void) signal(SIGHUP, SIG_DFL);
- setpgrp();
-
-#if defined(_SC_CRAY_SECURE_SYS)
- if (secflag) {
- if (secstat(line, &secbuf) < 0)
- return(-1);
- if (setulvl(secbuf.st_slevel) < 0)
- return(-1);
- if (setucmp(secbuf.st_compart) < 0)
- return(-1);
- }
-#endif /* _SC_CRAY_SECURE_SYS */
-
- i = open(line, O_RDWR);
-
-#if defined(_SC_CRAY_SECURE_SYS)
- if (secflag) {
- if (setulvl(sysv.sy_minlvl) < 0)
- return(-1);
- if (setucmp(0) < 0)
- return(-1);
- }
-#endif /* _SC_CRAY_SECURE_SYS */
- if (i < 0)
- return(-1);
- (void) close(t);
- t = i;
- }
-# endif /* defined(CRAY) && defined(TCVHUP) */
- return(t);
-}
#endif /* !defined(CRAY) || !defined(NEWINIT) */
#if BSD <= 43
login_tty(t)
int t;
{
- if (setsid() < 0) {
-#ifdef ultrix
- /*
- * The setsid() may have failed because we
- * already have a pgrp == pid. Zero out
- * our pgrp and try again...
- */
- if ((setpgrp(0, 0) < 0) || (setsid() < 0))
-#endif
- fatalperror(net, "setsid()");
- }
-# ifdef TIOCSCTTY
- if (ioctl(t, TIOCSCTTY, (char *)0) < 0)
- fatalperror(net, "ioctl(sctty)");
-# if defined(CRAY)
- /*
- * Close the hard fd to /dev/ttypXXX, and re-open through
- * the indirect /dev/tty interface.
- */
- close(t);
- if ((t = open("/dev/tty", O_RDWR)) < 0)
- fatalperror(net, "open(/dev/tty)");
-# endif
-# else
- /*
- * We get our controlling tty assigned as a side-effect
- * of opening up a tty device. But on BSD based systems,
- * this only happens if our process group is zero. The
- * setsid() call above may have set our pgrp, so clear
- * it out before opening the tty...
- */
- (void) setpgrp(0, 0);
- close(open(line, O_RDWR));
-# endif
if (t != 0)
(void) dup2(t, 0);
if (t != 1)
* is necessary to startup the login process on the slave side of the pty.
*/
+
/* ARGSUSED */
void
startslave(host, autologin, autoname)
int autologin;
char *autoname;
{
+int syncpipe[2];
register int i;
#ifdef NEWINIT
extern char *ptyip;
register int n;
#endif /* NEWINIT */
+if ( pipe(syncpipe) < 0 )
+ fatal(net, "failed getting synchronization pipe");
+
#if defined(AUTHENTICATION)
if (!autoname || !autoname[0])
autologin = 0;
#endif
#ifndef NEWINIT
-# ifdef PARENT_DOES_UTMP
- utmp_sig_init();
-# endif /* PARENT_DOES_UTMP */
if ((i = fork()) < 0)
fatalperror(net, "fork");
if (i) {
-# ifdef PARENT_DOES_UTMP
- /*
- * Cray parent will create utmp entry for child and send
- * signal to child to tell when done. Child waits for signal
- * before doing anything important.
- */
- register int pid = i;
+char c;
+
void sigjob P((int));
+slavepid = i; /* So we can clean it up later */
+#ifdef CRAY
+ (void) signal(WJSIGNAL, sigjob);
+#endif
- setpgrp();
- utmp_sig_reset(); /* reset handler to default */
+ /* Wait for child before writing to parent side of pty.*/
+ read(syncpipe[0], &c, 1);
+ close(syncpipe[0]);
+ close(syncpipe[1]);
+
+ } else {
/*
* Create utmp entry for child
*/
(void) time(&wtmp.ut_time);
wtmp.ut_type = LOGIN_PROCESS;
- wtmp.ut_pid = pid;
- SCPYN(wtmp.ut_user, "LOGIN");
- SCPYN(wtmp.ut_host, host);
- SCPYN(wtmp.ut_line, line + sizeof("/dev/") - 1);
-#ifndef __hpux
- SCPYN(wtmp.ut_id, wtmp.ut_line+3);
-#else
- SCPYN(wtmp.ut_id, wtmp.ut_line+7);
-#endif
- pututline(&wtmp);
- endutent();
- if ((i = open(wtmpf, O_WRONLY|O_APPEND)) >= 0) {
- (void) write(i, (char *)&wtmp, sizeof(struct utmp));
- (void) close(i);
- }
-#ifdef CRAY
- (void) signal(WJSIGNAL, sigjob);
-#endif
- utmp_sig_notify(pid);
-# endif /* PARENT_DOES_UTMP */
- } else {
+ wtmp.ut_pid = getpid();
+
+
+pty_update_utmp (&wtmp, "LOGIN", line, host);
getptyslave(autologin);
+
+/* 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*/
}
cleanup(sig)
int sig;
{
-#ifndef PARENT_DOES_UTMP
-# if (BSD > 43) || defined(convex)
- char *p;
-
- p = line + sizeof("/dev/") - 1;
- if (logout(p))
- logwtmp(p, "", "");
- (void)chmod(line, 0666);
- (void)chown(line, 0, 0);
- *p = 'p';
- (void)chmod(line, 0666);
- (void)chown(line, 0, 0);
- (void) shutdown(net, 2);
- exit(1);
-# else
- void rmut();
-
- rmut();
-#ifdef HAVE_VHANGUP
- vhangup(); /* XXX */
-#endif
- (void) shutdown(net, 2);
- exit(1);
-# endif
-#else /* PARENT_DOES_UTMP */
-# ifdef NEWINIT
- (void) shutdown(net, 2);
- exit(1);
-# else /* NEWINIT */
-# ifdef CRAY
- static int incleanup = 0;
- register int t;
-
- /*
- * 1: Pick up the zombie, if we are being called
- * as the signal handler.
- * 2: If we are a nested cleanup(), return.
- * 3: Try to clean up TMPDIR.
- * 4: Fill in utmp with shutdown of process.
- * 5: Close down the network and pty connections.
- * 6: Finish up the TMPDIR cleanup, if needed.
- */
- if (sig == SIGCHLD)
- while (waitpid(-1, 0, WNOHANG) > 0)
- ; /* VOID */
- t = sigblock(sigmask(SIGCHLD));
- if (incleanup) {
- sigsetmask(t);
- return;
- }
- incleanup = 1;
- sigsetmask(t);
- if (secflag) {
- /*
- * We need to set ourselves back to a null
- * label to clean up.
- */
-
- setulvl(sysv.sy_minlvl);
- setucmp((long)0);
- }
-
- t = cleantmp(&wtmp);
- setutent(); /* just to make sure */
-# endif /* CRAY */
- rmut(line);
- close(pty);
+ pty_cleanup(line,slavepid,1);
+
(void) shutdown(net, 2);
-# ifdef CRAY
- if (t == 0)
- cleantmp(&wtmp);
-# endif /* CRAY */
exit(1);
-# endif /* NEWINT */
-#endif /* PARENT_DOES_UTMP */
}
#if defined(PARENT_DOES_UTMP) && !defined(NEWINIT)
projects / krb5.git / commitdiff