[PATCH] Improve error message for label file validation

[Kelvin Zhang <zhangkelvin@xxxxxxxxxx>]

From: Kelvin Zhang <zhangxp1998@xxxxxxxxx>

Signed-off-by: Kelvin Zhang <zhangxp1998@xxxxxxxxx>
---
 libselinux/src/label_file.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/libselinux/src/label_file.c b/libselinux/src/label_file.c
index 56f499fa..2e28d047 100644
--- a/libselinux/src/label_file.c
+++ b/libselinux/src/label_file.c
@@ -188,6 +188,9 @@ static int load_mmap(FILE *fp, size_t len, struct selabel_handle *rec,
 
 		str_buf[entry_len] = '\0';
 		if ((strcmp(str_buf, reg_version) != 0)) {
+			COMPAT_LOG(SELINUX_ERROR,
+				"Regex version mismatch, expected: %s actual: %s\n",
+				reg_version, str_buf);
 			free(str_buf);
 			return -1;
 		}
-- 
2.33.0.rc1.237.g0d66db33f3-goog