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From: schwarze@mdocml.bsd.lv
To: source@mdocml.bsd.lv
Subject: mdocml: Don't printf("%s", NULL) if .It has a macro as an argument  in a
Date: Wed, 10 Aug 2016 07:30:09 -0500 (EST)	[thread overview]
Message-ID: <18408533443631944156.enqueue@fantadrom.bsd.lv> (raw)

Log Message:
-----------
Don't printf("%s", NULL) if .It has a macro as an argument 
in a list of a type where items don't takes arguments.
Issue found by tb@ with afl(1).

Modified Files:
--------------
    mdocml:
        mdoc_validate.c

Revision Data
-------------
Index: mdoc_validate.c
===================================================================
RCS file: /home/cvs/mdocml/mdocml/mdoc_validate.c,v
retrieving revision 1.303
retrieving revision 1.304
diff -Lmdoc_validate.c -Lmdoc_validate.c -u -p -r1.303 -r1.304
--- mdoc_validate.c
+++ mdoc_validate.c
@@ -1064,10 +1064,11 @@ post_it(POST_ARGS)
 			    mdoc_argnames[nbl->args->argv[0].arg]);
 		/* FALLTHROUGH */
 	case LIST_item:
-		if (nit->head->child != NULL)
+		if ((nch = nit->head->child) != NULL)
 			mandoc_vmsg(MANDOCERR_ARG_SKIP,
 			    mdoc->parse, nit->line, nit->pos,
-			    "It %s", nit->head->child->string);
+			    "It %s", nch->string == NULL ?
+			    mdoc_macronames[nch->tok] : nch->string);
 		break;
 	case LIST_column:
 		cols = (int)nbl->norm->Bl.ncols;
--
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                 reply	other threads:[~2016-08-10 12:30 UTC|newest]

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