X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=blobdiff_plain;f=receive-pack.c;h=f83ae87e150ff93728da989f1d35ce0ad7c10f60;hb=fae09a8084c9b51632726523b477a78dd28d7d7e;hp=61e9929763133e9dbfb17b9c3097b2149b4fade0;hpb=2e13e5d89252ceef606a0a7be32dbf5bea7e5aca;p=git.git

diff --git a/receive-pack.c b/receive-pack.c
index 61e992976..f83ae87e1 100644
--- a/receive-pack.c
+++ b/receive-pack.c
@@ -132,6 +132,7 @@ static int run_hook(const char *hook_name)
 				break;
 		}
 	}
+	close(proc.in);
 	return hook_status(finish_command(&proc), hook_name);
 }
 
@@ -165,8 +166,9 @@ static const char *update(struct command *cmd)
 	unsigned char *new_sha1 = cmd->new_sha1;
 	struct ref_lock *lock;
 
-	if (!prefixcmp(name, "refs/") && check_ref_format(name + 5)) {
-		error("refusing to create funny ref '%s' locally", name);
+	/* only refs/... are allowed */
+	if (prefixcmp(name, "refs/") || check_ref_format(name + 5)) {
+		error("refusing to create funny ref '%s' remotely", name);
 		return "funny refname";
 	}
 
@@ -178,11 +180,21 @@ static const char *update(struct command *cmd)
 	if (deny_non_fast_forwards && !is_null_sha1(new_sha1) &&
 	    !is_null_sha1(old_sha1) &&
 	    !prefixcmp(name, "refs/heads/")) {
+		struct object *old_object, *new_object;
 		struct commit *old_commit, *new_commit;
 		struct commit_list *bases, *ent;
 
-		old_commit = (struct commit *)parse_object(old_sha1);
-		new_commit = (struct commit *)parse_object(new_sha1);
+		old_object = parse_object(old_sha1);
+		new_object = parse_object(new_sha1);
+
+		if (!old_object || !new_object ||
+		    old_object->type != OBJ_COMMIT ||
+		    new_object->type != OBJ_COMMIT) {
+			error("bad sha1 objects for %s", name);
+			return "bad ref";
+		}
+		old_commit = (struct commit *)old_object;
+		new_commit = (struct commit *)new_object;
 		bases = get_merge_bases(old_commit, new_commit, 1);
 		for (ent = bases; ent; ent = ent->next)
 			if (!hashcmp(old_sha1, ent->item->object.sha1))
@@ -200,12 +212,14 @@ static const char *update(struct command *cmd)
 	}
 
 	if (is_null_sha1(new_sha1)) {
+		if (!parse_object(old_sha1)) {
+			warning ("Allowing deletion of corrupt ref.");
+			old_sha1 = NULL;
+		}
 		if (delete_ref(name, old_sha1)) {
 			error("failed to delete %s", name);
 			return "failed to delete";
 		}
-		fprintf(stderr, "%s: %s -> deleted\n", name,
-			sha1_to_hex(old_sha1));
 		return NULL; /* good */
 	}
 	else {
@@ -217,8 +231,6 @@ static const char *update(struct command *cmd)
 		if (write_ref_sha1(lock, new_sha1, "push")) {
 			return "failed to write"; /* error() already called */
 		}
-		fprintf(stderr, "%s: %s -> %s\n", name,
-			sha1_to_hex(old_sha1), sha1_to_hex(new_sha1));
 		return NULL; /* good */
 	}
 }
@@ -403,6 +415,7 @@ static const char *unpack(void)
 		if (start_command(&ip))
 			return "index-pack fork failed";
 		pack_lockfile = index_pack_lockfile(ip.out);
+		close(ip.out);
 		status = finish_command(&ip);
 		if (!status) {
 			reprepare_packed_git();
@@ -458,6 +471,8 @@ int main(int argc, char **argv)
 	if (!dir)
 		usage(receive_pack_usage);
 
+	setup_path(NULL);
+
 	if (!enter_repo(dir, 0))
 		die("'%s': unable to chdir or not a git archive", dir);