svn commit: r236771 - head/tools/regression/bin/sh/builtins

[Jilles Tjoelker]

Author: jilles
Date: Fri Jun  8 22:54:25 2012
New Revision: 236771
URL: http://svn.freebsd.org/changeset/base/236771

Log:
  sh: Do not assume that SIGPIPE will only kill a subshell in builtins/wait3.0
  test.
  
  POSIX says that SIGPIPE affects a process and therefore a SIGPIPE caused and
  received by a subshell environment may or may not affect the parent shell
  environment.
  
  The change assumes that ${SH} is executed in a new process. This must be the
  case if it contains a slash and everyone appears to do so anyway even though
  POSIX might permit otherwise.
  
  This change makes builtins/wait3.0 work in ksh93.

Modified:
  head/tools/regression/bin/sh/builtins/wait3.0

Modified: head/tools/regression/bin/sh/builtins/wait3.0
==============================================================================
--- head/tools/regression/bin/sh/builtins/wait3.0	Fri Jun  8 21:58:51 2012	(r236770)
+++ head/tools/regression/bin/sh/builtins/wait3.0	Fri Jun  8 22:54:25 2012	(r236771)
@@ -15,7 +15,7 @@ for i in 1 2 3 4 5 6 7 8 9 10; do
 done
 exec 3>fifo1
 wait || failure $LINENO
-(echo >&3) 2>/dev/null && failure $LINENO
+(${SH} -c echo >&3) 2>/dev/null && failure $LINENO
 wait || failure $LINENO
 
 test -z "$failures"