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#!/bin/sh
#
# libexplain - Explain errno values returned by libc functions
# Copyright (C) 2008-2011 Peter Miller
# Written by Peter Miller <pmiller@opensource.org.au>
#
# 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 <http://www.gnu.org/licenses/>.
#
TEST_SUBJECT="truncate EIO"
. test_prelude
fmt > test.ok << 'fubar'
truncate(pathname = "foobar", length = 123) failed, Input/output error
(EIO) because a low-level I/O error occurred in the block special device,
possibly as a result of a preceding read(2) or write(2) system call
fubar
test $? -eq 0 || no_result
fmt > test.ok2 << 'fubar'
truncate(pathname = "foobar", length = 123) failed, Input/output error
(EIO) because a low-level I/O error occurred in the character special device,
possibly as a result of a preceding read(2) or write(2) system call
fubar
test $? -eq 0 || no_result
fmt > test.ok3 << 'fubar'
truncate(pathname = "foobar", length = 123) failed, Input/output error
(EIO) because a low-level I/O error occurred, probably in hardware,
possibly as a result of a preceding read(2) or write(2) system call
fubar
test $? -eq 0 || no_result
touch foobar
test $? -eq 0 || no_result
explain -e EIO truncate foobar 123 > test.out4
test $? -eq 0 || fail
fmt -w 700 test.out4 > test.out3
test $? -eq 0 || no_result
sed 's| "/dev/[^"]*" | |' test.out3 > test.out2
test $? -eq 0 || no_result
fmt test.out2 > test.out
test $? -eq 0 || no_result
diff test.ok2 test.out > /dev/null 2> /dev/null || \
diff test.ok3 test.out > /dev/null 2> /dev/null || \
diff test.ok test.out
test $? -eq 0 || fail
#
# Only definite negatives are possible.
# The functionality exercised by this test appears to work,
# no other guarantees are made.
#
pass
# vim: set ts=8 sw=4 et
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