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tests: fix dd skip=greater_max_file_size test on Solaris 10

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* tests/dd/skip-seek-past-file: I had previously commented that
on some systems lseek(> max file size) may succeed, but left
the possibility of failure in that case, so that I could determine
specific systems to put in the comments for both failure modes.
This commit is contained in:
Pádraig Brady
2009-02-06 02:01:43 +00:00
committed by Jim Meyering
parent 8ed84c3438
commit 0dc4478f13
1 changed files with 14 additions and 9 deletions
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23
tests/dd/skip-seek-past-file
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@@ -75,17 +75,22 @@ echo "dd: \`standard input': cannot skip: Value too large for defined data type
compare err_ok err || fail=1
# skipping > max file size should fail immediately
# Note I'm guessing there is a small chance that an lseek() could actually work
# and only a write() would fail (with EFBIG) when offset > max file size.
# So this test will both test for that, and ensure that dd
# exits immediately with an appropriate error when lseek() does error.
if ! truncate --size=$OFF_T_MAX in 2>/dev/null; then
# truncate is to ensure file system doesn't actually support OFF_T_MAX files
dd bs=1 skip=$OFF_T_MAX count=0 status=noxfer < file 2> err && fail=1
echo "dd: \`standard input': cannot skip: Invalid argument
0+0 records in
0+0 records out" > err_ok || framework_failure
compare err_ok err || fail=1
dd bs=1 skip=$OFF_T_MAX count=0 status=noxfer < file 2> err \
&& lseek_ok=yes \
|| lseek_ok=no
printf '%s\n' "dd: \`standard input': cannot skip: Invalid argument" \
'0+0 records in' '0+0 records out' > err_ok || framework_failure
if test $lseek_ok = yes; then
# On Solaris 10 at least, lseek(>max file size) succeeds,
# so just check for the skip warning.
compare skip_err err || fail=1
else
# On Linux at least lseek(>max file size) fails.
compare err_ok err || fail=1
fi
fi
Exit $fail