git archive supports passing generated tar archives through filter
commands like gzip. Additional filters can be set up using the
configuration variables tar.<name>.command and tar.<name>.remote.
When parsing these config variable names, we currently check that
the second dot is found nine characters into the name, disallowing
filter names with a length of five characters. Additionally,
git archive crashes when the second dot is omitted:
$ ./git -c tar.foo=bar archive HEAD >/dev/null
fatal: Data too large to fit into virtual memory space.
Instead we should check if the second dot exists at all, or if
we only found the first one.
Signed-off-by: Rene Scharfe <[email protected]>
---
archive-tar.c | 2 +-
t/t5000-tar-tree.sh | 3 ++-
2 files changed, 3 insertions(+), 2 deletions(-)
diff --git a/archive-tar.c b/archive-tar.c
index d1cce46..093d10e 100644
--- a/archive-tar.c
+++ b/archive-tar.c
@@ -335,7 +335,7 @@ static int tar_filter_config(const char *var, const char
*value, void *data)
if (prefixcmp(var, "tar."))
return 0;
dot = strrchr(var, '.');
- if (dot == var + 9)
+ if (dot == var + 3)
return 0;
name = var + 4;
diff --git a/t/t5000-tar-tree.sh b/t/t5000-tar-tree.sh
index e7c240f..3fbd366 100755
--- a/t/t5000-tar-tree.sh
+++ b/t/t5000-tar-tree.sh
@@ -212,7 +212,8 @@ test_expect_success 'git-archive --prefix=olde-' '
test_expect_success 'setup tar filters' '
git config tar.tar.foo.command "tr ab ba" &&
git config tar.bar.command "tr ab ba" &&
- git config tar.bar.remote true
+ git config tar.bar.remote true &&
+ git config tar.invalid baz
'
test_expect_success 'archive --list mentions user filter' '
--
1.8.0
--
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