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create_particular long worm tail vs mkclass

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Similar to ^G of 'I' triggering impossible "mkclass found no class 35
monsters", using a leading substring of "long worm tail" (other than
"l" and "long worm") would trigger impossible "mkclass found no class
59 monsters and kill the fuzzer when it escalates impossible to panic.
Tighten up the substring matching.

^G of '~' wasn't affected; it deliberately creates a long worm rather
than the tail of one.  But it was possible to ask for "long worm tail"
as a specific monster type and then override the switch to long worm
when prompted about whether to force the originally specified critter.
I've added a check to prevent that opportunity to override even though
a tail without a head seemed to be harmless.
This commit is contained in:
PatR
2019-01-02 13:42:45 -08:00
parent 194fd65a4b
commit 480e682454
3 changed files with 25 additions and 12 deletions
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doc/fixes36.2
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@@ -1,4 +1,4 @@
$NHDT-Branch: NetHack-3.6.2-beta01 $:$NHDT-Revision: 1.219 $ $NHDT-Date: 1546212616 2018/12/30 23:30:16 $
$NHDT-Branch: NetHack-3.6.2-beta01 $:$NHDT-Revision: 1.220 $ $NHDT-Date: 1546465283 2019/01/02 21:41:23 $
This fixes36.2 file is here to capture information about updates in the 3.6.x
lineage following the release of 3.6.1 in April 2018. Please note, however,
@@ -360,10 +360,12 @@ when built with STATUS_HILITES enabled (the default), gold on status line
was missing '$' prefix for symset:Blank
wizard mode ^G, creating a monster of class 'I' yielded impossible "mkclass
found no class 35 monsters"
in some unknown circumstance, examining something on the map could match bogus
monster class #0 and trigger impossible "Alphabet soup: 'an("")'."
(fix avoids the warning but underlying cause is a mystery; noticed
with the fuzzer, which swaps symbol sets in and out at random)
wizard mode ^G, creating a monster via class name using "lo" through "long wor"
or "long worm t" through "long worm tail" yielded impossible "mkclass
found no class 59 monsters" (class '~' creates a long worm as intended)
if bouldersym bug (via 'O', above) put a <NUL> ('\0') on the map, examining
that spot matched placeholder monster class #0 and triggered impossible
"Alphabet soup: 'an("")'."
tty: turn off an optimization that is the suspected cause of Windows reported
partial status lines following level changes
tty: ensure that current status fields are always copied to prior status