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authorSergey Vojtovich <sergey.vojtovich@oracle.com>2010-12-01 15:56:46 +0300
committerSergey Vojtovich <sergey.vojtovich@oracle.com>2010-12-01 15:56:46 +0300
commit21779b35eaf0bbbd9aad6c220012a12ff001cc11 (patch)
treed49a55d8fe727fc8e448bd19790e7a10d42b9902 /mysys/mf_pack.c
parent7009fd0e7d72327d11c53b180f05e80d64eff522 (diff)
downloadmariadb-git-21779b35eaf0bbbd9aad6c220012a12ff001cc11.tar.gz
BUG#58205 - Valgrind failure in fn_format when called from
archive_discover Fixed buffer underrun in cleanup_dirname(). Also fixed that original (unencoded) database and table names were used to discover archive tables. mysql-test/r/archive.result: A test case for BUG#58205. mysql-test/t/archive.test: A test case for BUG#58205. mysys/mf_pack.c: Fixed buffer underrun in cleanup_dirname(), when it gets path like "a/../" (relative path, where first directory is to be cut off). storage/archive/ha_archive.cc: Handler discover method gets database and table names as is. It must use build_table_filename() to get name similar to what it gets on create() and open().
Diffstat (limited to 'mysys/mf_pack.c')
-rw-r--r--mysys/mf_pack.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/mysys/mf_pack.c b/mysys/mf_pack.c
index c6e6a3a429e..a9482187138 100644
--- a/mysys/mf_pack.c
+++ b/mysys/mf_pack.c
@@ -192,7 +192,8 @@ size_t cleanup_dirname(register char *to, const char *from)
end_parentdir=pos;
while (pos >= start && *pos != FN_LIBCHAR) /* remove prev dir */
pos--;
- if (pos[1] == FN_HOMELIB || memcmp(pos,parent,length) == 0)
+ if (pos[1] == FN_HOMELIB ||
+ (pos > start && memcmp(pos, parent, length) == 0))
{ /* Don't remove ~user/ */
pos=strmov(end_parentdir+1,parent);
*pos=FN_LIBCHAR;