1 files changed, 19 insertions, 0 deletions
diff --git a/common_smtp.go b/common_smtp.go
new file mode 100644
index 0000000..5c458db
--- /dev/null
+++ b/common_smtp.go
@@ -0,0 +1,19 @@
+package main
+
+import "strings"
+
+func parse_smtp_line(line string) (cmd, param string) {
+	line = strings.TrimSuffix(line, "\n")
+	line = strings.TrimSuffix(line, "\r")
+	cmd_end := strings.IndexByte(line, ' ')
+	var param_start int
+	if cmd_end == -1 {
+		cmd_end = len(line)
+		param_start = len(line)
+	} else {
+		param_start = cmd_end + 1
+	}
+	cmd = strings.ToUpper(line[:cmd_end])
+	param = line[param_start:]
+	return
+}