tree data BUGFIX check for valid UTF-8 strings
Fixes sysrepo/sysrepo#3173
diff --git a/src/common.h b/src/common.h
index 9538ae0..0fedeae 100644
--- a/src/common.h
+++ b/src/common.h
@@ -540,6 +540,17 @@
LY_ERR ly_getutf8(const char **input, uint32_t *utf8_char, size_t *bytes_read);
/**
+ * @brief Check an UTF-8 character is valid.
+ *
+ * @param[in] input Input string to process.
+ * @param[in] in_len Bytes left to read in @p input.
+ * @param[out] utf8_len Length of a valid UTF-8 character.
+ * @return LY_SUCCESS on success
+ * @return LY_EINVAL in case of invalid UTF-8 character.
+ */
+LY_ERR ly_checkutf8(const char *input, size_t in_len, size_t *utf8_len);
+
+/**
* @brief Store UTF-8 character specified as 4byte integer into the dst buffer.
*
* UTF-8 mapping: