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author | Jeff Cody <jcody@redhat.com> | 2015-01-22 08:03:30 -0500 |
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committer | Kevin Wolf <kwolf@redhat.com> | 2015-01-23 18:17:06 +0100 |
commit | 9a29e18f7dfd5a0e80d1c60fc856ebba18ddb738 (patch) | |
tree | e9c2bf9ca98de347124834109e8bdee2b3859004 /xen-common-stub.c | |
parent | 1d33936ea847693a6d69f9049691a0341d6e0b9f (diff) |
block: update string sizes for filename,backing_file,exact_filename
The string field entries 'filename', 'backing_file', and
'exact_filename' in the BlockDriverState struct are defined as 1024
bytes.
However, many places that use these values accept a maximum of PATH_MAX
bytes, so we have a mixture of 1024 byte and PATH_MAX byte allocations.
This patch makes the BlockDriverStruct field string sizes match usage.
This patch also does a few fixes related to the size that needs to
happen now:
* the block qapi driver is updated to use PATH_MAX bytes
* the qcow and qcow2 drivers have an additional safety check
* the block vvfat driver is updated to use PATH_MAX bytes
for the size of backing_file, for systems where PATH_MAX is < 1024
bytes.
* qemu-img uses PATH_MAX rather than 1024. These instances were not
changed to be dynamically allocated, however, as the extra
temporary 3K in stack usage for qemu-img does not seem worrisome.
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Signed-off-by: Jeff Cody <jcody@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Diffstat (limited to 'xen-common-stub.c')
0 files changed, 0 insertions, 0 deletions