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Catch a situation where the tty speed might be 0 (in the case of UUCP

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over TCP), but is used as a divisor later, causing uucico to abort
with a SIGFPE.

Reviewed by:	Ian Lance Taylor <ian@cygnus.com>
This commit is contained in:
joerg 1996-10-12 10:41:56 +00:00
parent 579bd31171
commit 405f3d0e30
1 changed files with 5 additions and 5 deletions
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10
gnu/libexec/uucp/libunix/serial.c
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@ -26,7 +26,7 @@
#include "uucp.h"
#if USE_RCS_ID
const char serial_rcsid[] = "$Id: serial.c,v 1.65 1995/08/10 00:53:54 ian Rel $";
const char serial_rcsid[] = "$Id: serial.c,v 1.6 1995/08/19 21:25:56 ache Exp $";
#endif
#include "uudefs.h"
@ -2371,7 +2371,7 @@ fsysdep_conn_read (qconn, zbuf, pclen, cmin, ctimeout, freport)
else
csleepchars = MAX_INPUT - 10;
isleep = (int) (((long) csleepchars * 10000L) / q->ibaud);
isleep = (int) (((long) csleepchars * 10000L) / (q->ibaud? q->ibaud: (long)1200));
isleep -= 10;
if (isleep > 10)
@ -2773,8 +2773,8 @@ fsysdep_conn_io (qconn, zwrite, pcwrite, zread, pcread)
/ baud bits/sec)
* 10 bits/byte)
*/
stime.tv_sec = (long) 10240 / q->ibaud;
stime.tv_usec = ((((long) 1024000000 / q->ibaud) * (long) 10)
stime.tv_sec = (long) 10240 / (q->ibaud? q->ibaud: (long)1200);
stime.tv_usec = ((((long) 1024000000 / (q->ibaud? q->ibaud: (long)1200)) * (long) 10)
% (long) 1000000);
imask = 1 << q->o;
@ -2846,7 +2846,7 @@ fsysdep_conn_io (qconn, zwrite, pcwrite, zread, pcread)
we don't need to use the catch stuff, since we know
that HAVE_RESTARTABLE_SYSCALLS is 0. */
usset_signal (SIGALRM, usalarm, TRUE, (boolean *) NULL);
alarm ((int) ((long) 10240 / q->ibaud) + 1);
alarm ((int) ((long) 10240 / (q->ibaud? q->ibaud: (long)1200)) + 1);
/* There is a race condition here: on a severely loaded
system, we could get the alarm before we start the