Thread (4 messages) flat view 4 messages, 2 authors, 2016-06-15
DORMANTno replies

[PATCH] Fix handle leak in write_tree

From: Alex Riesen <hidden>
Date: 2016-06-15 22:43:07
Subsystem: the rest · Maintainer: Linus Torvalds

This is a quick and dirty fix for the broken "git cherry-pick -n" on
some broken OS, which does not remove the directory entry after unlink
succeeded(!) if the file is still open somewher.
The entry is left but "protected": no open, no unlink, no stat.
Very annoying.

Signed-off-by: Alex Riesen <redacted>
---
Alex Riesen, Mon, Apr 23, 2007 21:49:25 +0200:
quoted hunk ↗ jump to hunk
diff --git a/builtin-write-tree.c b/builtin-write-tree.c
index c88bbd1..d8284b4 100644
--- a/builtin-write-tree.c
+++ b/builtin-write-tree.c
@@ -29,6 +29,7 @@ int write_tree(unsigned char *sha1, int missing_ok, const char *prefix)
 
 	was_valid = cache_tree_fully_valid(active_cache_tree);
 
+	close(newfd);
 	if (!was_valid) {
 		if (cache_tree_update(active_cache_tree,
 				      active_cache, active_nr,
BTW, can someone explain this hunk? And how does it manage to
pass the tests?! And HOW did it manage to pass me?!!!

 builtin-write-tree.c |    6 +++++-
 1 files changed, 5 insertions(+), 1 deletions(-)
diff --git a/builtin-write-tree.c b/builtin-write-tree.c
index c88bbd1..391de53 100644
--- a/builtin-write-tree.c
+++ b/builtin-write-tree.c
@@ -36,8 +36,10 @@ int write_tree(unsigned char *sha1, int missing_ok, const char *prefix)
 			die("git-write-tree: error building trees");
 		if (0 <= newfd) {
 			if (!write_cache(newfd, active_cache, active_nr)
-					&& !close(newfd))
+					&& !close(newfd)) {
 				commit_lock_file(lock_file);
+				newfd = -1;
+			}
 		}
 		/* Not being able to write is fine -- we are only interested
 		 * in updating the cache-tree part, and if the next caller
@@ -55,6 +57,8 @@ int write_tree(unsigned char *sha1, int missing_ok, const char *prefix)
 	else
 		hashcpy(sha1, active_cache_tree->sha1);
 
+	if (0 <= newfd)
+		close(newfd);
 	rollback_lock_file(lock_file);
 
 	return 0;
-- 
1.5.2.rc0.65.gd296e
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