1 files changed, 49 insertions, 0 deletions
diff --git a/src/lib-smtp/smtp-syntax.h b/src/lib-smtp/smtp-syntax.h
new file mode 100644
index 0000000..f9f960c
--- /dev/null
+++ b/src/lib-smtp/smtp-syntax.h
@@ -0,0 +1,49 @@
+#ifndef SMTP_SYNTAX_H
+#define SMTP_SYNTAX_H
+
+struct smtp_parser;
+
+/*
+ * String
+ */
+
+int smtp_string_parse(const char *string, const char **value_r,
+		      const char **error_r);
+void smtp_string_write(string_t *out, const char *value);
+
+/*
+ * Xtext encoding
+ */
+
+int smtp_xtext_decode(string_t *out, const char *xtext, bool allow_nul,
+		      const char **error_r);
+int smtp_xtext_parse(const char *xtext, const char **value_r,
+		     const char **error_r);
+
+void smtp_xtext_encode(string_t *out, const unsigned char *data, size_t size);
+static inline void
+smtp_xtext_encode_cstr(string_t *out, const char *data)
+{
+	smtp_xtext_encode(out, (const unsigned char *)data, strlen(data));
+}
+
+/*
+ * HELO domain
+ */
+
+int smtp_helo_domain_parse(const char *helo, bool allow_literal,
+			   const char **domain_r);
+
+/*
+ * EHLO reply
+ */
+
+bool smtp_ehlo_keyword_is_valid(const char *keyword);
+bool smtp_ehlo_param_is_valid(const char *param);
+bool smtp_ehlo_params_are_valid(const char *const *params) ATTR_NULL(1);
+bool smtp_ehlo_params_str_is_valid(const char *params);
+
+int smtp_ehlo_line_parse(const char *ehlo_line, const char **key_r,
+			 const char *const **params_r, const char **error_r);
+
+#endif