File: maxlen.bash

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gocryptfs 1.2-2
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#!/bin/bash -eu
#
# Find out the maximum supported filename length and print it.
#
# Part of the gocryptfs test suite
# https://nuetzlich.net/gocryptfs/

NAME="maxlen."
LEN=0

while [ $LEN -le 10000 ]; do
	touch $NAME 2> /dev/null || break
	rm $NAME
	LEN=${#NAME}
	NAME="${NAME}x"
done

echo $LEN