When our dial timeout is ``random'', display its value

correctly by invoking the timer to get the value before
displaying the message.
Don't assume that a value of 0 is ``random'' in
``show datalink''.
Make the random value between 1 and DIAL_TIMEOUT rather
than between 0 and DIAL_TIMEOUT-1

3 files changed, 21 insertions, 14 deletions

diff --git a/usr.sbin/ppp/ppp/README.changes b/usr.sbin/ppp/ppp/README.changes
index 0ee2b36d115..4642dfe0595 100644
--- a/usr.sbin/ppp/ppp/README.changes
+++ b/usr.sbin/ppp/ppp/README.changes
@@ -76,3 +76,5 @@ o If you don't like seeing additional interface aliases when running in
   check the sample file.
 o Ppp waits for 1 second before checking whether the device supports
   carrier.  This is controllable with ``set cd''.
+o Random dial timeouts are now between 1 and 30 seconds inclusive rather
+  than between 0 and 29.
diff --git a/usr.sbin/ppp/ppp/datalink.c b/usr.sbin/ppp/ppp/datalink.c
index dd0ddee201b..d3a69720974 100644
--- a/usr.sbin/ppp/ppp/datalink.c
+++ b/usr.sbin/ppp/ppp/datalink.c
@@ -23,7 +23,7 @@
  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
  *
- *	$Id: datalink.c,v 1.13 1999/02/18 00:50:45 brian Exp $
+ *	$Id: datalink.c,v 1.14 1999/02/25 12:07:23 brian Exp $
  */
 
 #include <sys/param.h>
@@ -86,16 +86,19 @@ datalink_OpenTimeout(void *v)
     log_Printf(LogPHASE, "%s: Redial timer expired.\n", dl->name);
 }
 
-static void
+static int
 datalink_StartDialTimer(struct datalink *dl, int Timeout)
 {
+  int result = Timeout;
+
   timer_Stop(&dl->dial_timer);
- 
   if (Timeout) {
     if (Timeout > 0)
       dl->dial_timer.load = Timeout * SECTICKS;
-    else
-      dl->dial_timer.load = (random() % DIAL_TIMEOUT) * SECTICKS;
+    else {
+      result = (random() % DIAL_TIMEOUT) + 1;
+      dl->dial_timer.load = result * SECTICKS;
+    }
     dl->dial_timer.func = datalink_OpenTimeout;
     dl->dial_timer.name = "dial";
     dl->dial_timer.arg = dl;
@@ -104,6 +107,7 @@ datalink_StartDialTimer(struct datalink *dl, int Timeout)
       log_Printf(LogPHASE, "%s: Enter pause (%d) for redialing.\n",
                 dl->name, Timeout);
   }
+  return result;
 }
 
 static void
@@ -133,6 +137,7 @@ datalink_HangupDone(struct datalink *dl)
     if (!physical_SetMode(dl->physical, PHYS_BACKGROUND))
       log_Printf(LogERROR, "Oops - can't change mode to BACKGROUND (gulp) !\n");
     bundle_LinksRemoved(dl->bundle);
+    /* if dial.timeout is < 0 (random), don't override fsm.delay */
     if (dl->cbcp.fsm.delay < dl->cfg.dial.timeout)
       dl->cbcp.fsm.delay = dl->cfg.dial.timeout;
     datalink_StartDialTimer(dl, dl->cbcp.fsm.delay);
@@ -281,9 +286,9 @@ datalink_UpdateSet(struct descriptor *d, fd_set *r, fd_set *w, fd_set *e,
             bundle_LinkClosed(dl->bundle, dl);
           }
           if (!dl->bundle->CleaningUp) {
+            int timeout = datalink_StartDialTimer(dl, dl->cfg.dial.timeout);
             log_WritePrompts(dl, "Failed to open %s, pause %d seconds\n",
-                             dl->physical->name.full, dl->cfg.dial.timeout);
-            datalink_StartDialTimer(dl, dl->cfg.dial.timeout);
+                             dl->physical->name.full, timeout);
           }
         }
       }
@@ -976,11 +981,11 @@ datalink_Show(struct cmdargs const *arg)
                   arg->cx->cfg.dial.max);
   else
     prompt_Printf(arg->prompt, " Dial tries:         infinite, delay ");
-  if (arg->cx->cfg.dial.next_timeout > 0)
+  if (arg->cx->cfg.dial.next_timeout >= 0)
     prompt_Printf(arg->prompt, "%ds/", arg->cx->cfg.dial.next_timeout);
   else
     prompt_Printf(arg->prompt, "random/");
-  if (arg->cx->cfg.dial.timeout > 0)
+  if (arg->cx->cfg.dial.timeout >= 0)
     prompt_Printf(arg->prompt, "%ds\n", arg->cx->cfg.dial.timeout);
   else
     prompt_Printf(arg->prompt, "random\n");
diff --git a/usr.sbin/ppp/ppp/ppp.8 b/usr.sbin/ppp/ppp/ppp.8
index 3bcb91a872e..09e28d445db 100644
--- a/usr.sbin/ppp/ppp/ppp.8
+++ b/usr.sbin/ppp/ppp/ppp.8
@@ -1,4 +1,4 @@
-.\" $Id: ppp.8,v 1.21 1999/02/18 00:50:45 brian Exp $
+.\" $Id: ppp.8,v 1.22 1999/02/25 12:07:23 brian Exp $
 .Dd 20 September 1995
 .nr XX \w'\fC00'
 .Os FreeBSD
@@ -844,14 +844,14 @@ set redial seconds|random[.nseconds|random] [dial_attempts]
 is the number of seconds to wait before attempting
 to connect again. If the argument is
 .Sq random ,
-the delay period is a random value between 0 and 30 seconds.
+the delay period is a random value between 1 and 30 seconds inclusive.
 .Sq Nseconds
 is the number of seconds to wait before attempting
 to dial the next number in a list of numbers (see the
 .Dq set phone
 command).  The default is 3 seconds.  Again, if the argument is
 .Sq random ,
-the delay period is a random value between 0 and 30 seconds.
+the delay period is a random value between 1 and 30 seconds.
 .Sq dial_attempts
 is the number of times to try to connect for each outgoing packet
 that is received. The previous value is unchanged if this parameter
@@ -3826,7 +3826,7 @@ defaults to zero.  A value of
 .Ar random
 for
 .Ar timeout
-will result in a variable pause, somewhere between 0 and 30 seconds.
+will result in a variable pause, somewhere between 1 and 30 seconds.
 .It set recvpipe Op Ar value
 This sets the routing table RECVPIPE value.  The optimum value is
 just over twice the MTU value.  If
@@ -3848,7 +3848,7 @@ may be used here in place of
 .Ar seconds
 and
 .Ar nseconds ,
-causing a random delay of between 0 and 30 seconds.
+causing a random delay of between 1 and 30 seconds.
 .Pp
 Note, this delay will be effective, even after
 .Ar attempts