I believe it has been fixed now.
** Changed in: dialog (Ubuntu)
Status: New => Fix Released
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https://bugs.launchpad.net/bugs/230376
Title:
dialog --editbox crashed with 'Segment
This was fixed a while ago:
2007/09/3
+ fix editbox widget to handle zero-length files (report by Joe
McDonagh).
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dialog --editbox crashed with 'Segmentation fault (core dumped)'
https://bugs.launchpad.net/bugs/230376
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edit: it happen only with empty file (file size zero)
** Description changed:
Binary package hint: dialog
* Steps to reproduce:
Execute following command:
dialog --editbox "file_name" 20 20 >/dev/tty
+
+ edit: empty file (file size zero)
Result error message:
'Segmentation faul
