#!/bin/sh # Test "ln -sf". # Copyright (C) 1997-2018 Free Software Foundation, Inc. # This program is free software: you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation, either version 3 of the License, or # (at your option) any later version. # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # You should have received a copy of the GNU General Public License # along with this program. If not, see . . "${srcdir=.}/tests/init.sh"; path_prepend_ ./src print_ver_ ln echo foo > a || framework_failure_ # Check that a target directory of '.' is supported # and that indirectly specifying the same target and link name # through that is detected. ln -s . b || framework_failure_ ln -sf a b > err 2>&1 && fail=1 case $(cat err) in *'are the same file') ;; *) fail=1 ;; esac # Ensure we replace symlinks that don't or can't link to an existing target. # coreutils-8.22 would fail to replace {ENOTDIR,ELOOP,ENAMETOOLONG}_link below. # We apply a limit since AIX returns 2^32-1 which would trigger resource issues. name_max=$(stat -f -c %l .) && test "$name_max" -lt $((1024*1024)) || name_max=1 # skip this portion of the test name_max_plus1=$(expr $name_max + 1) long_name=$(printf '%*s' $name_max_plus1 | tr ' ' '0') for f in '' f; do ln -s$f missing ENOENT_link || fail=1 ln -s$f a/b ENOTDIR_link || fail=1 ln -s$f ELOOP_link ELOOP_link || fail=1 ln -s$f "$long_name" ENAMETOOLONG_link || fail=1 done Exit $fail