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authorCong Ding <dinggnu@gmail.com>2013-01-25 17:48:59 -0600
committerAlex Elder <elder@inktank.com>2013-01-25 17:48:59 -0600
commit1ec3911dbd19076bcdfe5540096ff67f91a6ec02 (patch)
tree95aac4248cb875f7e3f99b1373fdea5ada061298 /fs/ceph
parentc04306471ad93f1daf60771a0373316d4c3494ae (diff)
libceph: fix undefined behavior when using snprintf()
The variable "str" is used as both the source and destination in function snprintf(), which is undefined behavior based on C11. The original description in C11 is: "If copying takes place between objects that overlap, the behavior is undefined." And, the function of ceph_osdmap_state_str() is to return the osdmap state, so it should return "doesn't exist" when all the conditions are not satisfied. I fix it in this patch. [elder@inktank.com: shortened the commit message] Signed-off-by: Cong Ding <dinggnu@gmail.com> Reviewed-by: Alex Elder <elder@inktank.com>
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