When trying to expand some columns in a table where the sum of the

widths of the remaining columns is already wider than the line
length, underflowing size_t and dying from ENOMEM is the wrong plan.
Instead, simply refrain from expanding anything in such a situation,
avoiding a crash that tb@ found with afl.

1 files changed, 23 insertions, 0 deletions

diff --git a/regress/tbl/mod/expand-toowide.out_ascii b/regress/tbl/mod/expand-toowide.out_ascii
new file mode 100644
index 00000000..066fdf90
--- /dev/null
+++ b/regress/tbl/mod/expand-toowide.out_ascii
@@ -0,0 +1,23 @@
+TBL-MOD-EXPAND-TOOWIDE(1)   General Commands Manual  TBL-MOD-EXPAND-TOOWIDE(1)
+
+
+
+NNAAMMEE
+       tbl-mod-expand-toowide - try to expand columns in a table that is
+       already too wide
+
+DDEESSCCRRIIPPTTIIOONN
+       In this
+       section, the
+       line length
+       is limited to
+       20
+       characters.
+
+       x   1234567890   x
+
+       Now we are back to the default terminal width.
+
+
+
+OpenBSD                           May 1, 2017        TBL-MOD-EXPAND-TOOWIDE(1)