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Max Reitz 7c8730d45f block/vvfat: Fix compiler warning with gcc 7 
gcc 7 complains that the sprintf() might write a null byte beyond the
end of the tail buffer.  That is wrong, but we can silence it by making
i unsigned (it can never be negative anyway, see the if condition right
before).  For some reason, this allows gcc to suddenly accurately
calculate the range of i so we can give the tail[] array the exact size
it needs to have (which is 8 bytes) without gcc complaining.

In addition, let us convert the sprintf() to snprintf(), because that is
always nicer, and add an assertion about the range of the return value
afterwards so we can see that "8 - len" will never be negative and thus
"entry->name + MIN(j, 8 - len)" will never be out of bounds.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2017-07-18 15:14:36 +02:00
..
accounting.c block: make accounting thread-safe 2017-06-16 07:55:00 +08:00
backup.c Convert error_report() to warn_report() 2017-07-13 13:49:58 +02:00
blkdebug.c block: Add PreallocMode to bdrv_truncate() 2017-07-11 17:45:01 +02:00
blkreplay.c block: change variable names in BlockDriverState 2017-06-26 14:54:46 +02:00
blkverify.c blkverify: Catch bs->exact_filename overflow 2017-06-26 14:54:46 +02:00
block-backend.c block: Make blk_all_next() public 2017-07-18 15:14:36 +02:00
bochs.c block: do not set BDS read_only if copy_on_read enabled 2017-04-24 15:09:33 -04:00
cloop.c block: do not set BDS read_only if copy_on_read enabled 2017-04-24 15:09:33 -04:00
commit.c commit: Add NULL check for overlay_bs 2017-07-18 15:14:35 +02:00
crypto.c block: Add PreallocMode to bdrv_truncate() 2017-07-11 17:45:01 +02:00
crypto.h qcow: convert QCow to use QCryptoBlock for encryption 2017-07-11 17:44:56 +02:00
curl.c curl: do not do aio_poll when waiting for a free CURLState 2017-05-16 10:34:50 -04:00
dirty-bitmap.c block: release persistent bitmaps on inactivate 2017-07-11 17:44:59 +02:00
dmg-bz2.c dmg: Move libbz2 code to dmg-bz2.so 2016-10-07 14:14:06 +02:00
dmg.c block: do not set BDS read_only if copy_on_read enabled 2017-04-24 15:09:33 -04:00
dmg.h dmg: Move libbz2 code to dmg-bz2.so 2016-10-07 14:14:06 +02:00
file-posix.c block/file-posix: Preallocation for truncate 2017-07-11 17:45:01 +02:00
file-win32.c block: Add PreallocMode to BD.bdrv_truncate() 2017-07-11 17:45:01 +02:00
gluster.c Error reporting patches for 2017-07-13 2017-07-14 09:36:40 +01:00
io.c -----BEGIN PGP SIGNATURE----- 2017-07-18 13:09:51 +01:00
iscsi-opts.c block/iscsi: statically link qemu_iscsi_opts 2017-01-27 18:07:58 +01:00
iscsi.c Error reporting patches for 2017-07-13 2017-07-14 09:36:40 +01:00
linux-aio.c block: explicitly acquire aiocontext in aio callbacks that need it 2017-02-21 11:39:39 +00:00
Makefile.objs qcow2: add bitmaps extension 2017-07-11 17:44:57 +02:00
mirror.c block: Add PreallocMode to blk_truncate() 2017-07-11 17:45:01 +02:00
nbd-client.c nbd: Implement NBD_INFO_BLOCK_SIZE on client 2017-07-14 12:04:42 +02:00
nbd-client.h nbd: Create struct for tracking export info 2017-07-14 12:04:41 +02:00
nbd.c nbd: Implement NBD_INFO_BLOCK_SIZE on client 2017-07-14 12:04:42 +02:00
nfs.c Error reporting patches for 2017-07-13 2017-07-14 09:36:40 +01:00
null.c qobject: Use simpler QDict/QList scalar insertion macros 2017-05-09 09:13:51 +02:00
parallels.c block: Add PreallocMode to blk_truncate() 2017-07-11 17:45:01 +02:00
qapi.c block: List anonymous device BBs in query-block 2017-07-18 15:14:36 +02:00
qcow2-bitmap.c qcow2: add .bdrv_remove_persistent_dirty_bitmap 2017-07-11 17:44:59 +02:00
qcow2-cache.c qcow2: Remove stale comment 2016-11-25 13:51:30 +01:00
qcow2-cluster.c qcow2: add support for LUKS encryption format 2017-07-11 17:44:56 +02:00
qcow2-refcount.c block/qcow2: falloc/full preallocating growth 2017-07-11 17:45:02 +02:00
qcow2-snapshot.c qcow2: Discard/zero clusters by byte count 2017-05-11 14:28:07 +02:00
qcow2.c qcow2: call CoQueue APIs under CoMutex 2017-07-17 11:28:15 +08:00
qcow2.h block/qcow2: falloc/full preallocating growth 2017-07-11 17:45:02 +02:00
qcow.c block: Add PreallocMode to blk_truncate() 2017-07-11 17:45:01 +02:00
qed-check.c qed: Use DIV_ROUND_UP 2016-06-07 18:19:24 +03:00
qed-cluster.c qed: protect table cache with CoMutex 2017-07-17 11:34:11 +08:00
qed-l2-cache.c qed: protect table cache with CoMutex 2017-07-17 11:34:11 +08:00
qed-table.c qed: protect table cache with CoMutex 2017-07-17 11:34:11 +08:00
qed.c qed: protect table cache with CoMutex 2017-07-17 11:34:11 +08:00
qed.h qed: protect table cache with CoMutex 2017-07-17 11:34:11 +08:00
quorum.c qapi: merge QInt and QFloat in QNum 2017-06-20 14:31:31 +02:00
raw-format.c block: Add PreallocMode to bdrv_truncate() 2017-07-11 17:45:01 +02:00
rbd.c Error reporting patches for 2017-07-13 2017-07-14 09:36:40 +01:00
replication.c block: Make bdrv_is_allocated_above() byte-based 2017-07-10 13:18:07 +02:00
sheepdog.c sheepdog: add queue_lock 2017-07-17 11:34:20 +08:00
snapshot.c qobject: Use simpler QDict/QList scalar insertion macros 2017-05-09 09:13:51 +02:00
ssh.c ssh: support I/O from any AioContext 2017-07-17 11:34:20 +08:00
stream.c block: Make bdrv_is_allocated_above() byte-based 2017-07-10 13:18:07 +02:00
throttle-groups.c block: remove timer canceling in throttle_config() 2017-07-18 15:14:35 +02:00
trace-events trace: Show blockjob actions via bytes, not sectors 2017-07-10 13:18:06 +02:00
vdi.c vdi: make it thread-safe 2017-07-17 11:28:15 +08:00
vhdx-endian.c vhdx: Use QEMU UUID API 2016-09-23 11:42:52 +08:00
vhdx-log.c block: Add PreallocMode to bdrv_truncate() 2017-07-11 17:45:01 +02:00
vhdx.c block: Add PreallocMode to blk_truncate() 2017-07-11 17:45:01 +02:00
vhdx.h block: vhdx - update PAYLOAD_BLOCK_UNMAPPED value to match 1.00 spec 2014-12-12 15:42:22 +00:00
vmdk.c block/vmdk: Report failures in vmdk_read_cid() 2017-07-18 15:14:35 +02:00
vpc.c block/vpc.c: Handle write failures in get_image_offset() 2017-07-18 15:14:35 +02:00
vvfat.c block/vvfat: Fix compiler warning with gcc 7 2017-07-18 15:14:36 +02:00
vxhs.c qobject: Use simpler QDict/QList scalar insertion macros 2017-05-09 09:13:51 +02:00
win32-aio.c block: explicitly acquire aiocontext in aio callbacks that need it 2017-02-21 11:39:39 +00:00
write-threshold.c block: use bdrv_add_before_write_notifier 2016-10-07 13:34:07 +02:00