stty: adjust console buffer when console size changesstty

The console buffer width is made to match the console width; the
buffer height must always be greater than or equal to the number of
rows in the console.

1 files changed, 6 insertions, 0 deletions

diff --git a/win32/winansi.c b/win32/winansi.c
index 757a3509d..aafd866a1 100644
--- a/win32/winansi.c
+++ b/win32/winansi.c
@@ -605,6 +605,12 @@ int winansi_set_terminal_width_height(struct winsize *win)
 
         sbi.cbSize = sizeof(sbi);
         if ((ret=GetConsoleScreenBufferInfoEx(console, &sbi)) != 0) {
+                if (sbi.dwSize.X != win->ws_col) {
+                        sbi.dwSize.X = win->ws_col;
+                }
+                if (sbi.dwSize.Y < win->ws_row) {
+                        sbi.dwSize.Y = win->ws_row;
+                }
                 sbi.srWindow.Bottom = sbi.srWindow.Top + win->ws_row;
                 sbi.srWindow.Right = sbi.srWindow.Left + win->ws_col;
                 ret = SetConsoleScreenBufferInfoEx(console, &sbi);