tree b4c075aa591e0ac81e6adc2fbf4d62dd4c029d07
parent 023fccb96661919eb1ede3342c8e3c460e62ff47
author Benno Schulenberg <bensberg@justemail.net> 1459932102 +0200
committer Benno Schulenberg <bensberg@justemail.net> 1460279858 +0200

files: allocate enough space for the prompt when finding a lock file

Instead of allocating a fixed amount of 128 bytes, which will overflow
and segfault, adjust the allocation to the length of the file name, and
if necessary trim the file name to make the prompt fit on the screen.

This fixes https://savannah.gnu.org/bugs/?47511.

Reported-by: Aapo Rantalainen <aapo.rantalainen@gmail.com>
Signed-off-by: Benno Schulenberg <bensberg@justemail.net>