Shell: Don't crash when stdout is not a TTY

Let's just pretend we have 80 columns while running non-interactively. There are definitely nicer solutions here, and we should find them.
abyesilyurt · Jan 19, 2020 · 6ca1a46 · 6ca1a46
1 parent 6eab7b3
commit 6ca1a46
Showing 1 changed file with 4 additions and 3 deletions.
diff --git a/Shell/LineEditor.cpp b/Shell/LineEditor.cpp
@@ -34,9 +34,10 @@
 LineEditor::LineEditor()
 {
  struct winsize ws;
- int rc = ioctl(STDOUT_FILENO, TIOCGWINSZ, &ws);
- ASSERT(rc == 0);
- m_num_columns = ws.ws_col;
+ if (ioctl(STDOUT_FILENO, TIOCGWINSZ, &ws) < 0)
+ m_num_columns = 80;
+ else
+ m_num_columns = ws.ws_col;
 }
 
 LineEditor::~LineEditor()