utils: binary, new package that collect all the spare helper functions about binary operations (#102)

1 files changed, 30 insertions, 0 deletions

diff --git a/utils/binary/write.go b/utils/binary/write.go
new file mode 100644
index 0000000..3ea1d91
--- /dev/null
+++ b/utils/binary/write.go
@@ -0,0 +1,30 @@
+package binary
+
+import (
+	"encoding/binary"
+	"io"
+)
+
+// Write writes the binary representation of data into w, using BigEndian order
+// https://golang.org/pkg/encoding/binary/#Write
+func Write(w io.Writer, data ...interface{}) error {
+	for _, v := range data {
+		if err := binary.Write(w, binary.BigEndian, v); err != nil {
+			return err
+		}
+	}
+
+	return nil
+}
+
+// WriteUint32 writes the binary representation of a uint32 into w, in BigEndian
+// order
+func WriteUint32(w io.Writer, value uint32) error {
+	return binary.Write(w, binary.BigEndian, value)
+}
+
+// WriteUint16 writes the binary representation of a uint16 into w, in BigEndian
+// order
+func WriteUint16(w io.Writer, value uint16) error {
+	return binary.Write(w, binary.BigEndian, value)
+}