pgsql: Improve ispell dictionary's defenses against bad affix files.

Started by Tom Lanealmost 12 years ago1 messagescomitters

tgl@sss.pgh.pa.us

almost 12 years ago

Improve ispell dictionary's defenses against bad affix files.

Don't crash if an ispell dictionary definition contains flags but not
any compound affixes. (This isn't a security issue since only superusers
can install affix files, but still it's a bad thing.)

Also, be more careful about detecting whether an affix-file FLAG command
is old-format (ispell) or new-format (myspell/hunspell). And change the
error message about mixed old-format and new-format commands into something
intelligible.

Per bug #11770 from Emre Hasegeli. Back-patch to all supported branches.

Branch
------
REL9_4_STABLE

Details
-------
http://git.postgresql.org/pg/commitdiff/1cf54b00ba2100083390223a8244430643c1ec07

Modified Files
--------------
src/backend/tsearch/spell.c | 70 +++++++++++++++++++++++++++----------------
1 file changed, 44 insertions(+), 26 deletions(-)

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