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Date: Fri, 30 Oct 2015 13:54:24 -0500 (EST)
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From: schwarze@mdocml.bsd.lv
To: source@mdocml.bsd.lv
Subject: mdocml: Do not access a NULL pointer when a .Bd macro has no arguments 
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Log Message:
-----------
Do not access a NULL pointer when a .Bd macro has no arguments at all.
Bug reported by krw@.

Modified Files:
--------------
    mdocml:
        mdoc_state.c

Revision Data
-------------
Index: mdoc_state.c
===================================================================
RCS file: /home/cvs/mdocml/mdocml/mdoc_state.c,v
retrieving revision 1.2
retrieving revision 1.3
diff -Lmdoc_state.c -Lmdoc_state.c -u -p -r1.2 -r1.3
--- mdoc_state.c
+++ mdoc_state.c
@@ -195,6 +195,9 @@ state_bd(STATE_ARGS)
 	    (n->type != ROFFT_BODY || n->end != ENDBODY_NOT))
 		return;
 
+	if (n->parent->args == NULL)
+		return;
+
 	arg = n->parent->args->argv[0].arg;
 	if (arg != MDOC_Literal && arg != MDOC_Unfilled)
 		return;
--
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