From 7bbfa218f9c33ad946822aac2ee4b1f23164b59c Mon Sep 17 00:00:00 2001
From: vahid-sohrabloo <vahid4134@gmail.com>
Date: Sun, 19 Feb 2017 17:14:20 +0330
Subject: [PATCH 1/3] Add Size Command

---
 ftp.go | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/ftp.go b/ftp.go
index 81c04db..219d987 100644
--- a/ftp.go
+++ b/ftp.go
@@ -407,6 +407,21 @@ func (c *ServerConn) CurrentDir() (string, error) {
 	return msg[start+1 : end], nil
 }
 
+// FileSize issues a SIZE FTP command, which Returns the size of the file
+func (c *ServerConn) FileSize(path string) (int, error) {
+	_, msg, err := c.cmd(StatusFile, "SIZE %s", path)
+	if err != nil {
+		return 0, err
+	}
+
+	size, err := strconv.Atoi(msg)
+	if err != nil {
+		return 0, err
+	}
+
+	return size, nil
+}
+
 // Retr issues a RETR FTP command to fetch the specified file from the remote
 // FTP server.
 //

From 468423d44aad91768b349739006a79a94fbfaf0e Mon Sep 17 00:00:00 2001
From: Vahid Sohrabloo <vahid4134@gmail.com>
Date: Mon, 20 Feb 2017 00:13:08 +0330
Subject: [PATCH 2/3] Change file Size type from int to int64 and add test for
 it

---
 client_test.go | 13 +++++++++++++
 ftp.go         |  4 ++--
 2 files changed, 15 insertions(+), 2 deletions(-)

diff --git a/client_test.go b/client_test.go
index a713556..161dc11 100644
--- a/client_test.go
+++ b/client_test.go
@@ -96,6 +96,19 @@ func testConn(t *testing.T, disableEPSV bool) {
 		r.Close()
 	}
 
+	fileSize, err := c.FileSize("tset")
+	if err != nil {
+		t.Error(err)
+	}
+	if fileSize != 14 {
+		t.Errorf("file size %q, expected %q", fileSize, 14)
+	}
+
+	fileSize, err = c.FileSize("not-found")
+	if err == nil {
+		t.Fatal("expected error, got nil")
+	}
+
 	err = c.Delete("tset")
 	if err != nil {
 		t.Error(err)
diff --git a/ftp.go b/ftp.go
index 219d987..03dd7c7 100644
--- a/ftp.go
+++ b/ftp.go
@@ -408,13 +408,13 @@ func (c *ServerConn) CurrentDir() (string, error) {
 }
 
 // FileSize issues a SIZE FTP command, which Returns the size of the file
-func (c *ServerConn) FileSize(path string) (int, error) {
+func (c *ServerConn) FileSize(path string) (int64, error) {
 	_, msg, err := c.cmd(StatusFile, "SIZE %s", path)
 	if err != nil {
 		return 0, err
 	}
 
-	size, err := strconv.Atoi(msg)
+	size, err := strconv.ParseInt(msg, 10, 64)
 	if err != nil {
 		return 0, err
 	}

From 7e0dbe8c484f39ca85f59e4f85067a0fba994d96 Mon Sep 17 00:00:00 2001
From: Vahid Sohrabloo <vahid4134@gmail.com>
Date: Mon, 20 Feb 2017 09:04:20 +0330
Subject: [PATCH 3/3] Add more test in FileSize

---
 client_test.go | 14 ++++++++++++++
 ftp.go         |  7 +------
 2 files changed, 15 insertions(+), 6 deletions(-)

diff --git a/client_test.go b/client_test.go
index 161dc11..1f9cf81 100644
--- a/client_test.go
+++ b/client_test.go
@@ -104,6 +104,20 @@ func testConn(t *testing.T, disableEPSV bool) {
 		t.Errorf("file size %q, expected %q", fileSize, 14)
 	}
 
+	data = bytes.NewBufferString("")
+	err = c.Stor("tset", data)
+	if err != nil {
+		t.Error(err)
+	}
+
+	fileSize, err = c.FileSize("tset")
+	if err != nil {
+		t.Error(err)
+	}
+	if fileSize != 0 {
+		t.Errorf("file size %q, expected %q", fileSize, 0)
+	}
+
 	fileSize, err = c.FileSize("not-found")
 	if err == nil {
 		t.Fatal("expected error, got nil")
diff --git a/ftp.go b/ftp.go
index 03dd7c7..b2b491e 100644
--- a/ftp.go
+++ b/ftp.go
@@ -414,12 +414,7 @@ func (c *ServerConn) FileSize(path string) (int64, error) {
 		return 0, err
 	}
 
-	size, err := strconv.ParseInt(msg, 10, 64)
-	if err != nil {
-		return 0, err
-	}
-
-	return size, nil
+	return strconv.ParseInt(msg, 10, 64)
 }
 
 // Retr issues a RETR FTP command to fetch the specified file from the remote