vfs_fruit: prepare fruit_pread_meta() for reading on fake-fd

If the read on the stream fails we may have hit a handle on a just
created stream (fio->created=true) with no data written yet.

If that's the case return an empty initialized FinderInfo blob.

Bug: https://bugzilla.samba.org/show_bug.cgi?id=13646

Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
(cherry picked from commit d7d92710711f6e555ed45c1dda528cd6a83e1bf5)

1 files changed, 20 insertions, 2 deletions

diff --git a/source3/modules/vfs_fruit.c b/source3/modules/vfs_fruit.c
index 8ff82f6e461..442ed1a9052 100644
--- a/source3/modules/vfs_fruit.c
+++ b/source3/modules/vfs_fruit.c
@@ -4194,8 +4194,7 @@ static ssize_t fruit_pread_meta_stream(vfs_handle_struct *handle,
 	int ret;
 
 	nread = SMB_VFS_NEXT_PREAD(handle, fsp, data, n, offset);
-
-	if (nread == n) {
+	if (nread == -1 || nread == n) {
 		return nread;
 	}
 
@@ -4294,6 +4293,25 @@ static ssize_t fruit_pread_meta(vfs_handle_struct *handle,
 		return -1;
 	}
 
+	if (nread == -1 && fio->created) {
+		AfpInfo *ai = NULL;
+		char afpinfo_buf[AFP_INFO_SIZE];
+
+		ai = afpinfo_new(talloc_tos());
+		if (ai == NULL) {
+			return -1;
+		}
+
+		nread = afpinfo_pack(ai, afpinfo_buf);
+		TALLOC_FREE(ai);
+		if (nread != AFP_INFO_SIZE) {
+			return -1;
+		}
+
+		memcpy(data, afpinfo_buf, to_return);
+		return to_return;
+	}
+
 	return nread;
 }