The .Sm macro accepts at most one argument;

fixing an assertion failure found by jsg@ with afl.

4 files changed, 37 insertions, 3 deletions

diff --git a/regress/usr.bin/mandoc/mdoc/Sm/Makefile b/regress/usr.bin/mandoc/mdoc/Sm/Makefile
index 3c84d66c66e..197b1d7424f 100644
--- a/regress/usr.bin/mandoc/mdoc/Sm/Makefile
+++ b/regress/usr.bin/mandoc/mdoc/Sm/Makefile
@@ -1,7 +1,7 @@
-# $OpenBSD: Makefile,v 1.6 2014/07/05 12:33:54 schwarze Exp $
+# $OpenBSD: Makefile,v 1.7 2014/11/26 19:22:44 schwarze Exp $
 
-REGRESS_TARGETS	= noarg badarg scope spacing-No spacing-Op
-LINT_TARGETS	= badarg
+REGRESS_TARGETS	= noarg badarg scope spacing-No spacing-Op twoarg
+LINT_TARGETS	= badarg twoarg
 
 SKIP_TMAN ?= scope
 
diff --git a/regress/usr.bin/mandoc/mdoc/Sm/twoarg.in b/regress/usr.bin/mandoc/mdoc/Sm/twoarg.in
new file mode 100644
index 00000000000..8e7b51d7c40
--- /dev/null
+++ b/regress/usr.bin/mandoc/mdoc/Sm/twoarg.in
@@ -0,0 +1,21 @@
+.Dd November 26, 2014
+.Dt SM-TWOARG 1
+.Os OpenBSD
+.Sh NAME
+.Nm Sm-twoarg
+.Nd spacing macro with multiple arguments
+.Sh DESCRIPTION
+.Sy default :
+.Fl f Ar on
+.br
+.Sy off two :
+.Sm off two
+.Fl f Ar off
+.br
+.Sy bad two :
+.Sm bad two
+.Fl f Ar off
+.br
+.Sy on two :
+.Sm on two
+.Fl f Ar on
diff --git a/regress/usr.bin/mandoc/mdoc/Sm/twoarg.out_ascii b/regress/usr.bin/mandoc/mdoc/Sm/twoarg.out_ascii
new file mode 100644
index 00000000000..b8276c2f963
--- /dev/null
+++ b/regress/usr.bin/mandoc/mdoc/Sm/twoarg.out_ascii
@@ -0,0 +1,12 @@
+SM-TWOARG(1)                General Commands Manual               SM-TWOARG(1)
+
+NNAAMMEE
+     SSmm--ttwwooaarrgg - spacing macro with multiple arguments
+
+DDEESSCCRRIIPPTTIIOONN
+     ddeeffaauulltt: --ff _o_n
+     ooffff ttwwoo: two--ff_o_f_f
+     bbaaddttwwoo: bad two --ff _o_f_f
+     oonn ttwwoo: two --ff _o_n
+
+OpenBSD                        November 26, 2014                       OpenBSD
diff --git a/regress/usr.bin/mandoc/mdoc/Sm/twoarg.out_lint b/regress/usr.bin/mandoc/mdoc/Sm/twoarg.out_lint
new file mode 100644
index 00000000000..581a5500baa
--- /dev/null
+++ b/regress/usr.bin/mandoc/mdoc/Sm/twoarg.out_lint
@@ -0,0 +1 @@
+mandoc: twoarg.in:16:5: WARNING: invalid Boolean argument: Sm bad