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8dfcf38af1
Run "make update-copyright" and then... * gnulib: Update to latest with copyright year adjusted. * tests/init.sh: Sync with gnulib to pick up copyright year. * bootstrap: Likewise. * tests/sample-test: Adjust to use the single most recent year.
40 lines
1.2 KiB
Bash
Executable File
40 lines
1.2 KiB
Bash
Executable File
#!/bin/sh
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# Validate truncate integer overflow
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# Copyright (C) 2008-2019 Free Software Foundation, Inc.
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <https://www.gnu.org/licenses/>.
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. "${srcdir=.}/tests/init.sh"; path_prepend_ ./src
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print_ver_ truncate
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getlimits_
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# -= overflow
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truncate -s-1 create-zero-len-file || fail=1
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echo > non-empty-file
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# signed overflow
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returns_ 1 truncate -s$OFF_T_OFLOW file || fail=1
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# += signed overflow
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returns_ 1 truncate -s+$OFF_T_MAX non-empty-file || fail=1
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# *= signed overflow
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IO_BLOCK_OFLOW=$(expr $OFF_T_MAX / $(stat -f -c%s .) + 1)
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returns_ 1 truncate --io-blocks --size=$IO_BLOCK_OFLOW file || fail=1
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Exit $fail
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