The 'TagName' string is defined to be 40 characters in length, but
in three places we write into it with a format of "(%.39s)". This
can result in a string of up to 42 characters, the 39 character user
string plus "()\0". This overflows TagName, as we see in the new
complier warnings from gcc 7.2.1:
iogen.c:1277:6: note: 'sprintf' output between 3 and 42 bytes into a
destination of size 40
sprintf( TagName, "(%.39s)", optarg );
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Fix this by limiting the user string to 37 characters.
Signed-off-by: Ross Zwisler <ross.zwisler@linux.intel.com>
Reviewed-by: Eryu Guan <eguan@redhat.com>
Signed-off-by: Eryu Guan <eguan@redhat.com>
This patch addresses the following build warnings:
fsx.c: In function 'do_punch_hole':
fsx.c:940:3: warning: this 'if' clause does not guard... [-Wmisleading-indentation]
if (!quiet && testcalls > simulatedopcount)
^~
fsx.c:942:4: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'if'
log4(OP_PUNCH_HOLE, offset, length, FL_SKIPPED);
^~~~
fsx.c:947:3: warning: this 'if' clause does not guard... [-Wmisleading-indentation]
if (!quiet && testcalls > simulatedopcount)
^~
fsx.c:949:4: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'if'
log4(OP_PUNCH_HOLE, offset, length, FL_SKIPPED);
^~~~
fsx.c: In function 'do_zero_range':
fsx.c:995:3: warning: this 'if' clause does not guard... [-Wmisleading-indentation]
if (!quiet && testcalls > simulatedopcount)
^~
fsx.c:997:4: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'if'
log4(OP_ZERO_RANGE, offset, length, FL_SKIPPED |
^~~~
[CC] growfiles
growfiles.c: In function 'notify_others':
growfiles.c:1458:6: warning: this 'if' clause does not guard... [-Wmisleading-indentation]
if ( Forker_pids[ind] != Pid )
^~
growfiles.c:1462:10: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'if'
kill(Forker_pids[ind], SIGUSR2);
^~~~
The warnings in fsx.c were just spacing issues of the form:
if (length == 0) {
if (!quiet && testcalls > simulatedopcount)
prt("skipping zero length punch hole\n");
log4(OP_PUNCH_HOLE, offset, length, FL_SKIPPED);
return;
}
Where the log4() call just needs to be unindented. log4() calls
elsewhere in that same file are not protected with any sort of
'quiet' check, and commonly follow prt() calls which are. See
doread(), domapread(), etc.
The warning from growfiles.c was actually a bug. notify_others() is
looping through the Forker_pids[] array and sending SIGUSR2 to all
other processes. However, with the current logic it only *logs* the
kill for other processes, and kills all other processes plus the
Forker_pids[] entry that matches 'Pid'.
Signed-off-by: Ross Zwisler <ross.zwisler@linux.intel.com>
Cc: Dave Chinner <david@fromorbit.com>
Cc: Lukas Czerner <lczerner@redhat.com>
Cc: Allison Henderson <achender@vnet.ibm.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Nathan Scott <nathans@sgi.com>
Reviewed-by: Eryu Guan <eguan@redhat.com>
Signed-off-by: Eryu Guan <eguan@redhat.com>
This patch resolves the following compiler/configure warnings:
configure: WARNING: unrecognized options: --enable-lib64
warning: 'xxxx' may be used uninitialized in this function [-Wuninitialized]
warning: variable 'xxx' set but not used [-Wunused-but-set-variable]
warning: call to function 'foo' without a real prototype [-Wunprototyped-calls]
Signed-off-by: Rich Johnston <rjohnston@sgi.com>
Reviewed-by: Mark Tinguely <tinguely@sgi.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
This patch removes the unused conditional NO_XFS which was added with
commit 332ee29d1a:
"xfstests updates - rework build to be like other xfs packages ..."
Signed-off-by: Rich Johnston <rjohnston@sgi.com>
Reviewed-by: Mark Tinguely <tinguely@sgi.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
This patch removes the unsupported sgi and CRAY.
Signed-off-by: Rich Johnston <rjohnston@sgi.com>
Reviewed-by: Mark Tinguely <tinguely@sgi.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
tempnam() generates a compiler warning as a dangerous function.
This code doesn't care about security issues with tempnam, so
remove it and just manually build the filenames without the
randomness of tempnam.
Signed-off-by: Dave Chinner <david@fromorbit.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Ross Zwisler
Rich Johnston
Dave Chinner
Nathan Scott
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