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-rw-r--r--generic/regcomp.c16
1 files changed, 9 insertions, 7 deletions
diff --git a/generic/regcomp.c b/generic/regcomp.c
index 4f0c139..6fa3964 100644
--- a/generic/regcomp.c
+++ b/generic/regcomp.c
@@ -593,13 +593,15 @@ makesearch(
break;
}
}
+
+ /*
+ * We want to mark states as being in the list already by having non
+ * NULL tmp fields, but we can't just store the old slist value in tmp
+ * because that doesn't work for the first such state. Instead, the
+ * first list entry gets its own address in tmp.
+ */
if (b != NULL && s->tmp == NULL) {
- /*
- * Must be split if not already in the list (fixes bugs 505048,
- * 230589, 840258, 504785).
- */
-
- s->tmp = slist;
+ s->tmp = (slist != NULL) ? slist : s;
slist = s;
}
}
@@ -620,7 +622,7 @@ makesearch(
freearc(nfa, a);
}
}
- s2 = s->tmp;
+ s2 = (s->tmp != s) ? s->tmp : NULL;
s->tmp = NULL; /* clean up while we're at it */
}
}