===================================================================
RCS file: /cvsrepo/anoncvs/cvs/src/usr.bin/mail/popen.c,v
retrieving revision 1.16
retrieving revision 1.17
diff -c -r1.16 -r1.17
*** src/usr.bin/mail/popen.c	1998/05/04 05:37:52	1.16
--- src/usr.bin/mail/popen.c	1998/06/12 17:51:53	1.17
***************
*** 1,4 ****
! /*	$OpenBSD: popen.c,v 1.16 1998/05/04 05:37:52 millert Exp $	*/
  /*	$NetBSD: popen.c,v 1.6 1997/05/13 06:48:42 mikel Exp $	*/
  
  /*
--- 1,4 ----
! /*	$OpenBSD: popen.c,v 1.17 1998/06/12 17:51:53 millert Exp $	*/
  /*	$NetBSD: popen.c,v 1.6 1997/05/13 06:48:42 mikel Exp $	*/
  
  /*
***************
*** 38,44 ****
  #if 0
  static char sccsid[] = "@(#)popen.c	8.1 (Berkeley) 6/6/93";
  #else
! static char rcsid[] = "$OpenBSD: popen.c,v 1.16 1998/05/04 05:37:52 millert Exp $";
  #endif
  #endif /* not lint */
  
--- 38,44 ----
  #if 0
  static char sccsid[] = "@(#)popen.c	8.1 (Berkeley) 6/6/93";
  #else
! static char rcsid[] = "$OpenBSD: popen.c,v 1.17 1998/06/12 17:51:53 millert Exp $";
  #endif
  #endif /* not lint */
  
***************
*** 388,393 ****
--- 388,396 ----
  	struct child *cp = findchild(pid, 0);
  	sigset_t nset, oset;
  
+ 	if (cp == NULL)
+ 		return(-1);
+ 
  	sigemptyset(&nset);
  	sigaddset(&nset, SIGCHLD);
  	sigprocmask(SIG_BLOCK, &nset, &oset);
***************
*** 409,414 ****
--- 412,420 ----
  {
  	struct child *cp = findchild(pid, 0);
  	sigset_t nset, oset;
+ 
+ 	if (cp == NULL)
+ 		return;
  
  	sigemptyset(&nset);
  	sigaddset(&nset, SIGCHLD);