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ssp_test:read:: query the value of MAXPATHLEN via getconf(1)

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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
This commit is contained in:
Enji Cooper 2017-05-12 05:06:48 +00:00
parent fff0aa3e6e
commit 8fb58d8b6a
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=318210
1 changed files with 2 additions and 1 deletions
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3
contrib/netbsd-tests/lib/libc/ssp/t_ssp.sh
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@ -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