1 files changed, 13 insertions, 4 deletions
diff --git a/lib9p/include/lib9p/9p.h b/lib9p/include/lib9p/9p.h
index 21c10e0..d4764a2 100644
--- a/lib9p/include/lib9p/9p.h
+++ b/lib9p/include/lib9p/9p.h
@@ -19,6 +19,17 @@
 	#error config.h must define CONFIG_9P_MAX_ERR_SIZE
 #endif
 
+/* strings ********************************************************************/
+
+const char *lib9p_version_str(enum lib9p_version);
+const char *lib9p_msgtype_str(enum lib9p_version, enum lib9p_msg_type);
+
+struct lib9p_s lib9p_str(char *s);
+struct lib9p_s lib9p_strn(char *s, size_t maxlen);
+struct lib9p_s lib9p_str_slice(struct lib9p_s s, uint16_t beg, uint16_t end);
+#define lib9p_str_sliceleft(s, beg) lib9p_str_slice(s, beg, (s).len)
+bool lib9p_str_eq(struct lib9p_s a, struct lib9p_s b);
+
 /* ctx ************************************************************************/
 
 struct lib9p_ctx {
@@ -30,7 +41,7 @@ struct lib9p_ctx {
 #ifdef CONFIG_9P_ENABLE_9P2000_u
 	uint32_t                err_num;
 #endif
-	char                    err_msg[CONFIG_9P_MAX_ERR_SIZE];
+	[[gnu::nonstring]] char err_msg[CONFIG_9P_MAX_ERR_SIZE];
 };
 
 void lib9p_ctx_clear_error(struct lib9p_ctx *ctx);
@@ -42,8 +53,6 @@ int lib9p_error(struct lib9p_ctx *ctx, uint32_t linux_errno, char const *msg);
 /** Write a printf-style error into ctx, return -1.  */
 int lib9p_errorf(struct lib9p_ctx *ctx, uint32_t linux_errno, char const *fmt, ...);
 
-const char *lib9p_msg_type_str(struct lib9p_ctx *, enum lib9p_msg_type);
-
 /* main T-message functions ***************************************************/
 
 /**
@@ -52,7 +61,7 @@ const char *lib9p_msg_type_str(struct lib9p_ctx *, enum lib9p_msg_type);
  *
  * Return how much space the message will take when unmarshaled.  This
  * number may be larger than net_bytes due to (1) struct padding, (2)
- * nul-terminator bytes for strings.
+ * array pointers.
  *
  * Emits an error (return -1, set ctx->err_num and ctx->err_msg) if
  * either the message type is unknown, or if net_bytes is too short