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avoid #wizrumorcheck crash on bad rumor input

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If either rumors.tru or rumors.fal was empty when makedefs made
'rumors', init_rumors() will set true_rumor_size to -1 to indicate
that rumors aren't available.  It also closes the input file, and
then #wizrumorcheck closed that again, triggering a crash in the
dlb code.

Fortune cookies and oracles work ok (just not very interesting)
when rumors aren't available.  Only the check command had trouble
with that.
This commit is contained in:
PatR
2020-03-05 13:55:45 -08:00
parent 998893ac32
commit 32b69f5c33
2 changed files with 22 additions and 23 deletions
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4
doc/fixes36.6
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@@ -1,4 +1,4 @@
$NHDT-Branch: NetHack-3.6 $:$NHDT-Revision: 1.0 $ $NHDT-Date: 1583332314 2020/03/04 14:31:54 $
$NHDT-Branch: NetHack-3.6-Mar2020 $:$NHDT-Revision: 1.1 $ $NHDT-Date: 1583445339 2020/03/05 21:55:39 $
fixes36.6 contains a terse summary of changes made to 3.6.5 in order to
produce 3.6.6 as well as any post-release fixes in binaries.
@@ -10,6 +10,8 @@ invalid status highlight color could be maliciously used to corrupt memory
formatting corpse names used internal buffers differently from formatting
other objects and could potentially clobber memory
avoid divide by 0 crash if 'bogusmon' (file of bogus monster types) is empty
avoid #wizrumorcheck crash if either 'rumors.tru' or 'rumors.fal' or both
were empty when makedefs built 'rumors'
Platform- and/or Interface-Specific Fixes or Features