lib9p/9p.h: Tidy up

1 files changed, 19 insertions, 1 deletions

diff --git a/lib9p/9p.c b/lib9p/9p.c
index 9f0bd4c..9ea0c46 100644
--- a/lib9p/9p.c
+++ b/lib9p/9p.c
@@ -13,6 +13,21 @@
 
 #include "internal.h"
 
+/* ctx ************************************************************************/
+
+void lib9p_ctx_clear_error(struct lib9p_ctx *ctx) {
+	assert(ctx);
+#ifdef CONFIG_9P_ENABLE_9P2000_u
+	ctx->err_num = 0;
+#endif
+	ctx->err_msg[0] = '\0';
+}
+
+bool lib9p_ctx_has_error(struct lib9p_ctx *ctx) {
+	assert(ctx);
+	return ctx->err_msg[0];
+}
+
 int lib9p_error(struct lib9p_ctx *ctx, uint32_t linux_errno, char const *msg) {
 	if (lib9p_ctx_has_error(ctx))
 		return -1;
@@ -49,12 +64,13 @@ int lib9p_errorf(struct lib9p_ctx *ctx, uint32_t linux_errno, char const *fmt, .
 	return -1;
 }
 
-
 const char *lib9p_msg_type_str(struct lib9p_ctx *ctx, enum lib9p_msg_type typ) {
     assert(0 <= typ && typ <= 0xFF);
     return _lib9p_versions[ctx->version].msgs[typ].name;
 }
 
+/* main message functions *****************************************************/
+
 ssize_t lib9p_validate(struct lib9p_ctx *ctx, uint8_t *net_bytes) {
 	/* Inspect the first 5 bytes ourselves.  */
 	struct _validate_ctx subctx = {
@@ -115,6 +131,8 @@ bool lib9p_marshal(struct lib9p_ctx *ctx, enum lib9p_msg_type typ, void *body,
 	return table.marshal(&subctx, body);
 }
 
+/* `struct lib9p_stat` helpers ************************************************/
+
 bool lib9p_validate_stat(struct lib9p_ctx *ctx, uint32_t net_size, uint8_t *net_bytes,
                          uint32_t *ret_net_size, ssize_t *ret_host_size) {
 	struct _validate_ctx subctx = {