add file package

1 files changed, 33 insertions, 0 deletions

diff --git a/file/file.go b/file/file.go
new file mode 100644
index 0000000..4267b10
--- /dev/null
+++ b/file/file.go
@@ -0,0 +1,33 @@
+// SPDX-License-Identifier: ISC
+// Copyright © 2021 siddharth <s@ricketyspace.net>
+
+package file
+
+import (
+	"io"
+	"os"
+)
+
+func Read(f *os.File) ([]byte, error) {
+	bs, chunk := make([]byte, 0), make([]byte, 10)
+	for {
+		n, err := f.Read(chunk)
+		if err != nil && err != io.EOF {
+			return bs, err
+		}
+		bs = append(bs, chunk[0:n]...)
+
+		if err == io.EOF {
+			break
+		}
+	}
+	return bs, nil
+}
+
+func Write(f *os.File, content []byte) error {
+	n, err := f.Write(content)
+	if n != len(content) {
+		return err
+	}
+	return nil
+}