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authorIngo Schwarze <schwarze@openbsd.org>2011-09-20 14:20:48 +0000
committerIngo Schwarze <schwarze@openbsd.org>2011-09-20 14:20:48 +0000
commit923f10c1dbf6234d1a2ab1a268fe7b81a3841198 (patch)
tree7a739a01c96a4dbbf7a2e430ceac18b8ac3aeb65 /man_term.c
parent5402c1b9a0d8a1e61e1a3179ed694c6923e09990 (diff)
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Using user-defined macros, surprisingly, it is possible
to have *next*-line head arguments on the *same* input line. So .TP must not assume that a head argument with a matching input line number is a same-line argument (and access a NULL pointer). Bug found and fix tested by kristaps@ with groff_hdtbl(7).
Diffstat (limited to 'man_term.c')
-rw-r--r--man_term.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/man_term.c b/man_term.c
index d844df31..211f5f69 100644
--- a/man_term.c
+++ b/man_term.c
@@ -1,4 +1,4 @@
-/* $Id: man_term.c,v 1.119 2011/09/20 13:13:23 schwarze Exp $ */
+/* $Id: man_term.c,v 1.120 2011/09/20 14:20:48 schwarze Exp $ */
/*
* Copyright (c) 2008, 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
* Copyright (c) 2010, 2011 Ingo Schwarze <schwarze@openbsd.org>
@@ -640,7 +640,7 @@ pre_TP(DECL_ARGS)
/* Calculate offset. */
if (NULL != (nn = n->parent->head->child))
- if (nn->parent->line == nn->line)
+ if (nn->string && nn->parent->line == nn->line)
if ((ival = a2width(p, nn->string)) >= 0)
len = (size_t)ival;