LibVT: enforce a minimum size of 1 column and 1 row

Fixes SerenityOS#829
akimdi · Jan 16, 2020 · 5c25983 · 5c25983
1 parent d9385d7
commit 5c25983
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Showing 2 changed files with 7 additions and 2 deletions.
diff --git a/Libraries/LibVT/Terminal.cpp b/Libraries/LibVT/Terminal.cpp
@@ -867,6 +867,11 @@ void Terminal::unimplemented_xterm_escape()
 
 void Terminal::set_size(u16 columns, u16 rows)
 {
+ if (!columns)
+ columns = 1;
+ if (!rows)
+ rows = 1;
+
  if (columns == m_columns && rows == m_rows)
  return;
 

diff --git a/Libraries/LibVT/Terminal.h b/Libraries/LibVT/Terminal.h
@@ -150,8 +150,8 @@ class Terminal {
  int m_scroll_region_top { 0 };
  int m_scroll_region_bottom { 0 };
 
- u16 m_columns { 0 };
- u16 m_rows { 0 };
+ u16 m_columns { 1 };
+ u16 m_rows { 1 };
 
  u16 m_cursor_row { 0 };
  u16 m_cursor_column { 0 };