restructuring to include ffi and not be a program

go/cmd/ffi/main.go

@@ -0,0 +1,23 @@
+package main
+
+/*
+#include <stdio.h>
+#include <stdlib.h>
+static inline void c_print(const char* s) {
+    printf("%s\n", s);
+    fflush(stdout);
+}
+*/
+import "C"
+import (
+	"github.com/Shuffle/indicator-parser/go/parser"
+)
+
+//export ParseIOC
+func ParseIOC(value *C.char, typesJSON *C.char) *C.char {
+	goValue := C.GoString(value)
+	result := parser.ParseIndicatorToJSON(goValue)
+	return C.CString(result)
+}
+
+func main() {}

go/parser/parser.go

@@ -0,0 +1,41 @@
+package parser
+
+import (
+	"encoding/json"
+	"fmt"
+	"log"
+	"os"
+
+	ioc "github.com/Shuffle/indicator-parser/go/ioc"
+)
+
+var logger *log.Logger
+
+func init() {
+	logFile, err := os.OpenFile("ioc_parser.log", os.O_APPEND|os.O_CREATE|os.O_WRONLY, 0644)
+	if err != nil {
+		panic(err)
+	}
+	logger = log.New(logFile, "", log.LstdFlags)
+}
+
+func logPrint(s string) {
+	logger.Println(s)
+	fmt.Println(s)
+}
+
+// ParseIndicator parses an IOC string and returns the results
+func ParseIndicator(value string) []ioc.Indicator {
+	return ioc.Parse(value, []ioc.IndicatorType{})
+}
+
+// ParseIndicatorToJSON parses an IOC string and returns the results as JSON
+func ParseIndicatorToJSON(value string) string {
+	results := ParseIndicator(value)
+	jsonData, err := json.Marshal(results)
+	if err != nil {
+		logPrint(fmt.Sprintf("Error marshaling results: %v", err))
+		return "[]"
+	}
+	return string(jsonData)
+}