get read working correctly

1 files changed, 11 insertions, 0 deletions

diff --git a/lib9p/include/lib9p/9p.h b/lib9p/include/lib9p/9p.h
index 2511e3d..e7ddb15 100644
--- a/lib9p/include/lib9p/9p.h
+++ b/lib9p/include/lib9p/9p.h
@@ -56,6 +56,17 @@ static bool lib9p_ctx_has_error(struct lib9p_ctx *ctx) {
 	return ctx->err_msg[0];
 }
 
+/** Assert that a `struct lib9p_stat` object looks valid.  */
+static inline void lib9p_assert_stat(struct lib9p_stat stat) {
+	assert( ((bool)(stat.file_mode & LIB9P_DM_DIR         )) == ((bool)(stat.file_qid.type & LIB9P_QT_DIR         )) );
+	assert( ((bool)(stat.file_mode & LIB9P_DM_APPEND      )) == ((bool)(stat.file_qid.type & LIB9P_QT_APPEND      )) );
+	assert( ((bool)(stat.file_mode & LIB9P_DM_EXCL        )) == ((bool)(stat.file_qid.type & LIB9P_QT_EXCL        )) );
+	assert( ((bool)(stat.file_mode & _LIB9P_DM_PLAN9_MOUNT)) == ((bool)(stat.file_qid.type & _LIB9P_QT_PLAN9_MOUNT)) );
+	assert( ((bool)(stat.file_mode & LIB9P_DM_AUTH        )) == ((bool)(stat.file_qid.type & LIB9P_QT_AUTH        )) );
+	assert( ((bool)(stat.file_mode & LIB9P_DM_TMP         )) == ((bool)(stat.file_qid.type & LIB9P_QT_TMP         )) );
+	assert( (stat.file_size == 0) || !(stat.file_mode & LIB9P_DM_DIR) );
+}
+
 /** Write an static error into ctx, return -1.  */
 int lib9p_error(struct lib9p_ctx *ctx, uint32_t linux_errno, char const *msg);
 /** Write a printf-style error into ctx, return -1.  */