1 files changed, 97 insertions, 0 deletions
diff --git a/include/haproxy/fix.h b/include/haproxy/fix.h
new file mode 100644
index 0000000..94aa815
--- /dev/null
+++ b/include/haproxy/fix.h
@@ -0,0 +1,97 @@
+/*
+ * include/haproxy/fix.h
+ * This file contains functions and macros declarations for FIX protocol decoding.
+ *
+ * Copyright 2020 Baptiste Assmann <bedis9@gmail.com>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation, version 2.1
+ * exclusively.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef _HAPROXY_FIX_H
+#define _HAPROXY_FIX_H
+
+#include <import/ist.h>
+
+#include <haproxy/fix-t.h>
+#include <haproxy/tools.h>
+
+unsigned int fix_check_id(const struct ist str, const struct ist version);
+int fix_validate_message(const struct ist msg);
+struct ist fix_tag_value(const struct ist msg, unsigned int tagid);
+
+/*
+ * Return the FIX version string (one of FIX_X_Y macros) corresponding to
+ * <str> or IST_NULL if not found.
+ */
+static inline struct ist fix_version(const struct ist str)
+{
+	/* 7 is the minimal size for the FIX version string */
+	if (istlen(str) < 7)
+		return IST_NULL;
+
+	if (isteq(FIX_4_0, str))
+		return FIX_4_0;
+	else if (isteq(FIX_4_1, str))
+		return FIX_4_1;
+	else if (isteq(FIX_4_2, str))
+		return FIX_4_2;
+	else if (isteq(FIX_4_3, str))
+		return FIX_4_3;
+	else if (isteq(FIX_4_4, str))
+		return FIX_4_4;
+	else if (isteq(FIX_5_0, str))
+		return FIX_5_0;
+
+	return IST_NULL;
+}
+
+/*
+ * Return the FIX tag ID corresponding to <tag> if one found or 0 if not.
+ *
+ * full list of tag ID available here, just in case we need to support
+ * more "string" equivalent in the future:
+ *   https://www.onixs.biz/fix-dictionary/4.2/fields_by_tag.html
+ */
+static inline unsigned int fix_tagid(const struct ist tag)
+{
+	unsigned id = fix_check_id(tag, IST_NULL);
+
+	if (id)
+		return id;
+
+	else if (isteqi(tag, ist("MsgType")))
+		return FIX_TAG_MsgType;
+	else if (isteqi(tag, ist("CheckSum")))
+		return FIX_TAG_CheckSum;
+	else if (isteqi(tag, ist("BodyLength")))
+		return FIX_TAG_BodyLength;
+	else if (isteqi(tag, ist("TargetCompID")))
+		return FIX_TAG_TargetCompID;
+	else if (isteqi(tag, ist("BeginString")))
+		return FIX_TAG_BeginString;
+	else if (isteqi(tag, ist("SenderCompID")))
+		return FIX_TAG_SenderCompID;
+
+	return 0;
+}
+
+#endif /* _HAPROXY_FIX_H */
+
+/*
+ * Local variables:
+ *  c-indent-level: 8
+ *  c-basic-offset: 8
+ * End:
+ */