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-rw-r--r--gnu/lib/libdialog/msgbox.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/gnu/lib/libdialog/msgbox.c b/gnu/lib/libdialog/msgbox.c
index fda3b40641a9..50f6c13b2057 100644
--- a/gnu/lib/libdialog/msgbox.c
+++ b/gnu/lib/libdialog/msgbox.c
@@ -40,6 +40,10 @@ int dialog_msgbox(unsigned char *title, unsigned char *prompt, int height, int w
width = MAX(i,j)+4;
}
+ if (width > COLS)
+ width = COLS;
+ if (height > LINES)
+ height = LINES;
/* center dialog box on screen */
x = (COLS - width)/2;
y = (LINES - height)/2;