package: libc6
tag: patch
obstack_free and _obstack_free do not properly reset the obstack to an empty
state, in the case when freeing all objects(NULL). This is because ->chunk is
not set when lp == NULL.
The following patch fixes it for me.
Index: optlib/obstack.c
===================================================================
RCS file: /cvs/dpkg/dpkg/optlib/obstack.c,v
retrieving revision 1.1
diff -u -r1.1 obstack.c
--- optlib/obstack.c 14 Jan 2001 20:30:46 -0000 1.1
+++ optlib/obstack.c 3 Sep 2002 17:21:36 -0000
@@ -397,14 +397,14 @@
h->maybe_empty_object = 1;
}
if (lp)
- {
- h->object_base = h->next_free = (char *) (obj);
- h->chunk_limit = lp->limit;
- h->chunk = lp;
- }
+ h->chunk_limit = lp->limit;
else if (obj != 0)
/* obj is not in any of the chunks! */
abort ();
+ else
+ h->chunk_limit = 0;
+ h->object_base = h->next_free = (char *) (obj);
+ h->chunk = lp;
}
/* This function is used from ANSI code. */
@@ -431,14 +431,14 @@
h->maybe_empty_object = 1;
}
if (lp)
- {
- h->object_base = h->next_free = (char *) (obj);
- h->chunk_limit = lp->limit;
- h->chunk = lp;
- }
+ h->chunk_limit = lp->limit;
else if (obj != 0)
/* obj is not in any of the chunks! */
abort ();
+ else
+ h->chunk_limit = 0;
+ h->object_base = h->next_free = (char *) (obj);
+ h->chunk = lp;
}
int
--
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