From 0295ce7cbf0d2b3b71f44d9dc84ae8db1e895a99 Mon Sep 17 00:00:00 2001 From: Jeff King Date: Fri, 14 Jun 2024 06:25:25 -0400 Subject: [PATCH] archive: fix check for missing url Running "git archive --remote" checks that we have at least one url for the remote. It does so by looking at remote.url[0], but that won't work; if we have no url at all, then remote.url will be NULL, and we'll segfault. Check url_nr instead, which is a more direct way of asking what we want. You can trigger the segfault like this: git -c remote.foo.vcs=bar archive --remote=foo but I didn't bother adding a test. This is the tip of the iceberg for no-url remotes, and a later patch will improve that situation. I just wanted to clean up this bug so it didn't make further refactoring of this code more confusing. Signed-off-by: Jeff King Signed-off-by: Junio C Hamano --- builtin/archive.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/builtin/archive.c b/builtin/archive.c index 15ee1ec7bb..f35560042e 100644 --- a/builtin/archive.c +++ b/builtin/archive.c @@ -31,7 +31,7 @@ static int run_remote_archiver(int argc, const char **argv, struct packet_reader reader; _remote = remote_get(remote); - if (!_remote->url[0]) + if (!_remote->url_nr) die(_("git archive: Remote with no URL")); transport = transport_get(_remote, _remote->url[0]); transport_connect(transport, "git-upload-archive", exec, fd);