nethack-gwaa-kiwi/nethack
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unix mail cleanup bulletproofing

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If the recently added release routine ever gets called twice for
some reason, don't free already freed memory, or worse, was freed
here and then allocated for something else which is still in use.
This commit is contained in:
PatR
2016-05-25 17:25:47 -07:00
parent 656476e409
commit b8d1f44272
1 changed files with 2 additions and 2 deletions
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4
src/mail.c
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@@ -1,4 +1,4 @@
/* NetHack 3.6 mail.c $NHDT-Date: 1451955080 2016/01/05 00:51:20 $ $NHDT-Branch: NetHack-3.6.0 $:$NHDT-Revision: 1.25 $ */
/* NetHack 3.6 mail.c $NHDT-Date: 1464222344 2016/05/26 00:25:44 $ $NHDT-Branch: NetHack-3.6.0 $:$NHDT-Revision: 1.27 $ */
/* Copyright (c) Stichting Mathematisch Centrum, Amsterdam, 1985. */
/* NetHack may be freely redistributed. See license for details. */
@@ -84,7 +84,7 @@ void
free_maildata()
{
if (mailbox)
free(mailbox);
free((genericptr_t) mailbox), mailbox = (char *) 0;
}
void