svn commit: r318210 - head/contrib/netbsd-tests/lib/libc/ssp

[Ngie Cooper]

Author: ngie
Date: Fri May 12 05:06:48 2017
New Revision: 318210
URL: https://svnweb.freebsd.org/changeset/base/318210

Log:
  ssp_test:read:: query the value of MAXPATHLEN via getconf(1)
  
  In the event the value of PATH_MAX was changed, the assumption that
  MAXPATHLEN is 1024 (and hence the buffer length required to trigger
  SSP to fail for read(2)) would be invalidated. Query getconf(1) for
  the actual value of MAXPATHLEN via _XOPEN_PATH_MAX instead, and
  increment the value by 1 to ensure that the SSP support tests the
  stack smashing support properly.
  
  MFC after:	3 weeks
  Sponsored by:	Dell EMC Isilon

Modified:
  head/contrib/netbsd-tests/lib/libc/ssp/t_ssp.sh

Modified: head/contrib/netbsd-tests/lib/libc/ssp/t_ssp.sh
==============================================================================
--- head/contrib/netbsd-tests/lib/libc/ssp/t_ssp.sh	Fri May 12 04:10:02 2017	(r318209)
+++ head/contrib/netbsd-tests/lib/libc/ssp/t_ssp.sh	Fri May 12 05:06:48 2017	(r318210)
@@ -392,7 +392,8 @@ read_body()
 		h_fail "$prog 1027" "echo bar |"
 	else
 	# End FreeBSD
-	h_fail "$prog 1025" "echo bar |"
+	MAX_PATH=$(getconf _XOPEN_MAX_PATH) || atf_fail "getconf failed"
+	h_fail "$prog $(( $MAX_PATH + 1))" "echo bar |"
 	# Begin FreeBSD
 	fi
 	# End FreeBSD