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| author | Junio C Hamano <gitster@pobox.com> | 2008-03-13 22:07:18 -0700 |
|---|---|---|
| committer | Junio C Hamano <gitster@pobox.com> | 2008-03-13 23:56:36 -0700 |
| commit | ca885a4fe6444bed840295378848904106c87c85 (patch) | |
| tree | 77b671ab9b278745ef39f0286b155db871864afe /builtin-read-tree.c | |
| parent | f746bae84e4746a861d9ebed29fd9255e5cd929f (diff) | |
| download | git-ca885a4fe6444bed840295378848904106c87c85.tar.gz | |
read-tree() and unpack_trees(): use consistent limit
read-tree -m can read up to MAX_TREES, which was arbitrarily set to 8 since
August 2007 (4 is needed to deal with 2 merge-base case).
However, the updated unpack_trees() code had an advertised limit of 4
(which it enforced). In reality the code was prepared to take only 3
trees and giving 4 caused it to stomp on its stack. Rename the MAX_TREES
constant to MAX_UNPACK_TREES, move it to the unpack-trees.h common header
file, and use it from both places to avoid future confusion.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to 'builtin-read-tree.c')
| -rw-r--r-- | builtin-read-tree.c | 9 |
1 files changed, 4 insertions, 5 deletions
diff --git a/builtin-read-tree.c b/builtin-read-tree.c index 160456dad1..e9cfd2bbc5 100644 --- a/builtin-read-tree.c +++ b/builtin-read-tree.c @@ -13,16 +13,15 @@ #include "dir.h" #include "builtin.h" -#define MAX_TREES 8 static int nr_trees; -static struct tree *trees[MAX_TREES]; +static struct tree *trees[MAX_UNPACK_TREES]; static int list_tree(unsigned char *sha1) { struct tree *tree; - if (nr_trees >= MAX_TREES) - die("I cannot read more than %d trees", MAX_TREES); + if (nr_trees >= MAX_UNPACK_TREES) + die("I cannot read more than %d trees", MAX_UNPACK_TREES); tree = parse_tree_indirect(sha1); if (!tree) return -1; @@ -97,7 +96,7 @@ int cmd_read_tree(int argc, const char **argv, const char *unused_prefix) { int i, newfd, stage = 0; unsigned char sha1[20]; - struct tree_desc t[MAX_TREES]; + struct tree_desc t[MAX_UNPACK_TREES]; struct unpack_trees_options opts; memset(&opts, 0, sizeof(opts)); |