fixed bug where we were doing invalid restore operations on stdin;

[ppp.git] / pppd / main.c

diff --git a/pppd/main.c b/pppd/main.c
index ad3edebf3f1b580403110e75af77a9c21bf1ca6f..1bf5d07ed803a6ac30e5680a752ba893568b4243 100644 (file)
--- a/pppd/main.c
+++ b/pppd/main.c
@@ -18,7 +18,7 @@
  */
 
 #ifndef lint
-static char rcsid[] = "$Id: main.c,v 1.7 1994/04/18 04:06:26 paulus Exp $";
+static char rcsid[] = "$Id: main.c,v 1.9 1994/05/09 02:40:21 paulus Exp $";
 #endif
 
 #define SETSID
@@ -113,7 +113,7 @@ static char pidfilename[MAXPATHLEN];
 char devname[MAXPATHLEN] = "/dev/tty"; /* Device name */
 int default_device = TRUE;     /* use default device (stdin/out) */
 
-int fd;                                /* Device file descriptor */
+int fd = -1;                   /* Device file descriptor */
 int s;                         /* Socket file descriptor */
 
 int phase;                     /* where the link is at */
@@ -390,13 +390,13 @@ main(argc, argv)
     }
 #endif /* TIOCSCTTY */
 
-    /* set line speed, flow control, etc. */
-    set_up_tty(fd);
-
     /* run connection script */
     if (connector) {
        MAINDEBUG((LOG_INFO, "Connecting with <%s>", connector));
 
+       /* set line speed, flow control, etc.; set CLOCAL for now */
+       set_up_tty(fd, 1);
+
        /* drop dtr to hang up in case modem is off hook */
        if (!default_device && modem) {
            setdtr(fd, FALSE);
@@ -414,6 +414,9 @@ main(argc, argv)
        sleep(1);               /* give it time to set up its terminal */
     }
   
+    /* set line speed, flow control, etc.; clear CLOCAL if modem option */
+    set_up_tty(fd, 0);
+
     /* set up the serial device as a ppp interface */
     establish_ppp();
 
@@ -617,13 +620,14 @@ baud_rate_of(speed)
 
 /*
  * set_up_tty: Set up the serial port on `fd' for 8 bits, no parity,
- * at the requested speed, etc.
+ * at the requested speed, etc.  If `local' is true, set CLOCAL
+ * regardless of whether the modem option was specified.
  */
-set_up_tty(fd)
-    int fd;
+set_up_tty(fd, local)
+    int fd, local;
 {
 #ifndef SGTTY
-    int speed;
+    int speed, x;
     struct termios tios;
 
     if (tcgetattr(fd, &tios) < 0) {
@@ -643,7 +647,7 @@ set_up_tty(fd)
 #endif /* CRTSCTS */
 
     tios.c_cflag |= CS8 | CREAD | HUPCL;
-    if (!modem)
+    if (local || !modem)
        tios.c_cflag |= CLOCAL;
     tios.c_iflag = IGNBRK | IGNPAR;
     tios.c_oflag = 0;
@@ -663,6 +667,14 @@ set_up_tty(fd)
        die(1);
     }
 
+#ifdef ultrix
+    x = 0;
+    if (ioctl(fd, (crtscts || modem)? TIOCMODEM: TIOCNMODEM, &x) < 0)
+       syslog(LOG_WARNING, "TIOC(N)MODEM: %m");
+    if (ioctl(fd, (local || !modem)? TIOCNCAR: TIOCCAR) < 0)
+       syslog(LOG_WARNING, "TIOC(N)CAR: %m");
+#endif
+
 #else  /* SGTTY */
     int speed;
     struct sgttyb sgttyb;
@@ -743,7 +755,7 @@ cleanup(status, arg)
        if (modem)
            setdtr(fd, FALSE);
 
-       if (fcntl(fd, F_SETFL, initfdflags) < 0)
+       if (initfdflags != -1 && fcntl(fd, F_SETFL, initfdflags) < 0)
            syslog(LOG_WARNING, "fcntl(F_SETFL, fdflags): %m");
 
        disestablish_ppp();
@@ -1001,6 +1013,8 @@ alrm(sig, code, scp, addr)
 
     MAINDEBUG((LOG_DEBUG, "Alarm"));
 
+    if (callout == NULL)
+       return;
     /*
      * Get the first scheduled timeout and any that were scheduled
      * for the same time as a list, and remove them all from callout