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b7dcea04
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2019-09-26T15:06:12
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config_entries: micro-optimize storage of multivars
Multivars are configuration entries that have many values for the same
name; we can thus micro-optimize this case by just retaining the name of
the first configuration entry and freeing all the others, letting them
point to the string of the first entry.
The attached test case is an extreme example that demonstrates this. It
contains a section name that is approximately 500kB in size with 20.000
entries "a=b". Without the optimization, this would require at least
20000*500kB bytes, which is around 10GB. With this patch, it only
requires 500kB+20000*1B=20500kB.
The obvious culprit here is the section header, which we repeatedly
include in each of the configuration entry's names. This makes it very
easier for an adversary to provide a small configuration file that
disproportionally blows up in memory during processing and is thus a
feasible way for a denial-of-service attack. Unfortunately, we cannot
fix the root cause by e.g. having a separate "section" field that may
easily be deduplicated due to the `git_config_entry` structure being
part of our public API. So this micro-optimization is the best we can do
for now.
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f1409500
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2018-08-14T03:54:01
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Write a test.
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f56a417d
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2015-04-16T15:20:33
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Specify mock config file content in test.
Instead of using a config file in resources, include the config file content to
be tested directly in the test.
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a060cccc
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2015-04-16T10:53:22
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Unittest to validate config entry deletion bug.
Add a unittest to validate bug #3043, where a duplicate empty config header
could cause deletion of a config entry to fail silently. The bug is currently
unresolved and this test will fail.
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a447a7e4
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2014-10-04T23:28:40
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config: Add test cases that have trailing spaces before comment chars
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17820381
|
2013-11-14T14:05:52
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Rename tests-clar to tests
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a1d08025
|
2012-05-02T16:33:26
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Backport more test data
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40879fac
|
2012-05-02T15:59:02
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Merge branch 'new-error-handling' into development
Conflicts:
.travis.yml
include/git2/diff.h
src/config_file.c
src/diff.c
src/diff_output.c
src/mwindow.c
src/path.c
tests-clar/clar_helpers.c
tests-clar/object/tree/frompath.c
tests/t00-core.c
tests/t03-objwrite.c
tests/t08-tag.c
tests/t10-refs.c
tests/t12-repo.c
tests/t18-status.c
tests/test_helpers.c
tests/test_main.c
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19dd4e28
|
2012-04-25T20:42:33
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Include the new config test file
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2c1075d6
|
2012-03-16T12:52:49
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config: parse quoted values
Variable values may be quoted to include newlines, literal quotes and
other characters. Add support for these and test it.
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fd29cd13
|
2012-03-31T16:10:01
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Moved testing resources to clar, and removed old tests directory.
Removed the BUILD_CLAR CMake flag, and updated the readme.
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3005855f
|
2012-02-05T00:29:26
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Implement setting multivars
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78d65f39
|
2012-02-01T17:47:17
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tests: add multivar read test
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9ac581bf
|
2011-10-01T19:56:04
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config: behave like git with [section.subsection]
The documentation is a bit misleading. The subsection name is always
case-sensitive, but with a [section.subsection] header, the subsection
is transformed to lowercase when the configuration is parsed.
Signed-off-by: Carlos Martín Nieto <carlos@cmartin.tk>
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ad196c6a
|
2011-09-21T23:17:39
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config: make git_config_[get|set]_long() able to properly deal with 8 bytes wide values
Should fix issue #419.
Signed-off-by: nulltoken <emeric.fermas@gmail.com>
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156af801
|
2011-06-28T16:27:16
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Add test for section header at end of file
Signed-off-by: Carlos Martín Nieto <cmn@elego.de>
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2601fcfc
|
2011-06-28T15:21:44
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Add tests for deleting a config var
Signed-off-by: Carlos Martín Nieto <cmn@elego.de>
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f3dad3ac
|
2011-06-16T20:06:36
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Add fall-back support to the configuration
If a config has several files, we need to check all of them before we
can say that a variable doesn't exist.
Signed-off-by: Carlos Martín Nieto <cmn@elego.de>
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3de5df7d
|
2011-06-16T19:56:48
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Add a test for overriding config
The repo's configuration should take precedence over the global one.
Signed-off-by: Carlos Martín Nieto <cmn@elego.de>
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a98b0d80
|
2011-06-14T14:26:08
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Test replacing a value
Add a test to check that value replacement works.
Signed-off-by: Carlos Martín Nieto <cmn@elego.de>
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fc0ee5bd
|
2011-05-31T17:54:50
|
|
Add test for empty config file
Signed-off-by: Carlos Martín Nieto <cmn@elego.de>
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38d0bc1e
|
2011-05-31T16:06:01
|
|
Add config test for empty line
Signed-off-by: Carlos Martín Nieto <cmn@elego.de>
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30d0550d
|
2011-05-31T16:31:19
|
|
Add test for invalid ext header
Signed-off-by: Carlos Martín Nieto <cmn@elego.de>
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a99264bf
|
2011-04-19T16:34:22
|
|
config: allow uppercase number suffixes
Signed-off-by: Carlos Martín Nieto <cmn@elego.de>
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53345e1f
|
2011-04-11T18:01:01
|
|
config: add tests for number suffix
Signed-off-by: Carlos Martín Nieto <cmn@elego.de>
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8cd767ef
|
2011-04-04T17:07:47
|
|
config: test for a variable on its own
If a variable is on its own, truth should be assumed. Check this is
true in our code.
Signed-off-by: Carlos Martín Nieto <cmn@elego.de>
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0bf8ca88
|
2011-04-04T16:44:23
|
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config: add tests
These tests are basic, but they should tell us when we've broken
something.
Signed-off-by: Carlos Martín Nieto <cmn@elego.de>
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