git/t/t3008-ls-files-lazy-init-na...

#!/bin/sh

test_description='Test the lazy init name hash with various folder structures'

. ./test-lib.sh

if test 1 -eq $($GIT_BUILD_DIR/t/helper/test-online-cpus)
then
	skip_all='skipping lazy-init tests, single cpu'
	test_done
fi

LAZY_THREAD_COST=2000

test_expect_success 'no buffer overflow in lazy_init_name_hash' '
	(
	    test_seq $LAZY_THREAD_COST | sed "s/^/a_/"
	    echo b/b/b
	    test_seq $LAZY_THREAD_COST | sed "s/^/c_/"
	    test_seq 50 | sed "s/^/d_/" | tr "\n" "/"; echo d
	) |
	sed "s/^/100644 $EMPTY_BLOB	/" |
	git update-index --index-info &&
	test-lazy-init-name-hash -m
'

test_done
name-hash: fix buffer overrun Add check for the end of the entries for the thread partition. Add test for lazy init name hash with specific directory structure The lazy init hash name was causing a buffer overflow when the last entry in the index was multiple folder deep with parent folders that did not have any files in them. This adds a test for the boundary condition of the thread partitions with the folder structure that was triggering the buffer overflow. The fix was to check if it is the last entry for the thread partition in the handle_range_dir and not try to use the next entry in the cache. Signed-off-by: Kevin Willford <kewillf@microsoft.com> Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Jeff Hostetler <jeffhost@microsoft.com> Signed-off-by: Junio C Hamano <gitster@pobox.com> 2017-03-31 20:32:14 +03:00			`#!/bin/sh`

			`test_description='Test the lazy init name hash with various folder structures'`

			`. ./test-lib.sh`

t3008: skip lazy-init test on a single-core box The lazy-init codepath will not be exercised uniless threaded. Skip the entire test on a single-core box. Also replace a hard-coded constant of 2000 (number of cache entries to manifacture for tests) with a variable with a human readable name. Signed-off-by: Kevin Willford <kewillf@microsoft.com> Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Jeff Hostetler <jeffhost@microsoft.com> Signed-off-by: Junio C Hamano <gitster@pobox.com> 2017-04-03 18:16:42 +03:00			`if test 1 -eq $($GIT_BUILD_DIR/t/helper/test-online-cpus)`
			`then`
			`skip_all='skipping lazy-init tests, single cpu'`
			`test_done`
			`fi`

			`LAZY_THREAD_COST=2000`

name-hash: fix buffer overrun Add check for the end of the entries for the thread partition. Add test for lazy init name hash with specific directory structure The lazy init hash name was causing a buffer overflow when the last entry in the index was multiple folder deep with parent folders that did not have any files in them. This adds a test for the boundary condition of the thread partitions with the folder structure that was triggering the buffer overflow. The fix was to check if it is the last entry for the thread partition in the handle_range_dir and not try to use the next entry in the cache. Signed-off-by: Kevin Willford <kewillf@microsoft.com> Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Jeff Hostetler <jeffhost@microsoft.com> Signed-off-by: Junio C Hamano <gitster@pobox.com> 2017-03-31 20:32:14 +03:00			`test_expect_success 'no buffer overflow in lazy_init_name_hash' '`
			`(`
t3008: skip lazy-init test on a single-core box The lazy-init codepath will not be exercised uniless threaded. Skip the entire test on a single-core box. Also replace a hard-coded constant of 2000 (number of cache entries to manifacture for tests) with a variable with a human readable name. Signed-off-by: Kevin Willford <kewillf@microsoft.com> Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Jeff Hostetler <jeffhost@microsoft.com> Signed-off-by: Junio C Hamano <gitster@pobox.com> 2017-04-03 18:16:42 +03:00			`test_seq $LAZY_THREAD_COST \| sed "s/^/a_/"`
name-hash: fix buffer overrun Add check for the end of the entries for the thread partition. Add test for lazy init name hash with specific directory structure The lazy init hash name was causing a buffer overflow when the last entry in the index was multiple folder deep with parent folders that did not have any files in them. This adds a test for the boundary condition of the thread partitions with the folder structure that was triggering the buffer overflow. The fix was to check if it is the last entry for the thread partition in the handle_range_dir and not try to use the next entry in the cache. Signed-off-by: Kevin Willford <kewillf@microsoft.com> Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Jeff Hostetler <jeffhost@microsoft.com> Signed-off-by: Junio C Hamano <gitster@pobox.com> 2017-03-31 20:32:14 +03:00			`echo b/b/b`
t3008: skip lazy-init test on a single-core box The lazy-init codepath will not be exercised uniless threaded. Skip the entire test on a single-core box. Also replace a hard-coded constant of 2000 (number of cache entries to manifacture for tests) with a variable with a human readable name. Signed-off-by: Kevin Willford <kewillf@microsoft.com> Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Jeff Hostetler <jeffhost@microsoft.com> Signed-off-by: Junio C Hamano <gitster@pobox.com> 2017-04-03 18:16:42 +03:00			`test_seq $LAZY_THREAD_COST \| sed "s/^/c_/"`
name-hash: fix buffer overrun Add check for the end of the entries for the thread partition. Add test for lazy init name hash with specific directory structure The lazy init hash name was causing a buffer overflow when the last entry in the index was multiple folder deep with parent folders that did not have any files in them. This adds a test for the boundary condition of the thread partitions with the folder structure that was triggering the buffer overflow. The fix was to check if it is the last entry for the thread partition in the handle_range_dir and not try to use the next entry in the cache. Signed-off-by: Kevin Willford <kewillf@microsoft.com> Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Jeff Hostetler <jeffhost@microsoft.com> Signed-off-by: Junio C Hamano <gitster@pobox.com> 2017-03-31 20:32:14 +03:00			`test_seq 50 \| sed "s/^/d_/" \| tr "\n" "/"; echo d`
			`) \|`
t3008: skip lazy-init test on a single-core box The lazy-init codepath will not be exercised uniless threaded. Skip the entire test on a single-core box. Also replace a hard-coded constant of 2000 (number of cache entries to manifacture for tests) with a variable with a human readable name. Signed-off-by: Kevin Willford <kewillf@microsoft.com> Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Jeff Hostetler <jeffhost@microsoft.com> Signed-off-by: Junio C Hamano <gitster@pobox.com> 2017-04-03 18:16:42 +03:00			`sed "s/^/100644 $EMPTY_BLOB /" \|`
name-hash: fix buffer overrun Add check for the end of the entries for the thread partition. Add test for lazy init name hash with specific directory structure The lazy init hash name was causing a buffer overflow when the last entry in the index was multiple folder deep with parent folders that did not have any files in them. This adds a test for the boundary condition of the thread partitions with the folder structure that was triggering the buffer overflow. The fix was to check if it is the last entry for the thread partition in the handle_range_dir and not try to use the next entry in the cache. Signed-off-by: Kevin Willford <kewillf@microsoft.com> Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Jeff Hostetler <jeffhost@microsoft.com> Signed-off-by: Junio C Hamano <gitster@pobox.com> 2017-03-31 20:32:14 +03:00			`git update-index --index-info &&`
			`test-lazy-init-name-hash -m`
			`'`

			`test_done`