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Merge pull request #212 from mafredri/remove-naked-returns

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Remove naked returns
This commit is contained in:
Julien Laffaye 2020-10-21 15:27:15 -04:00 committed by GitHub
commit 9aec86d811
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 17 additions and 22 deletions
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39
ftp.go
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@ -381,53 +381,48 @@ func (c *ServerConn) setUTF8() error {
func (c *ServerConn) epsv() (port int, err error) {
_, line, err := c.cmd(StatusExtendedPassiveMode, "EPSV")
if err != nil {
return
return 0, err
}
start := strings.Index(line, "|||")
end := strings.LastIndex(line, "|")
if start == -1 || end == -1 {
err = errors.New("invalid EPSV response format")
return
return 0, errors.New("invalid EPSV response format")
}
port, err = strconv.Atoi(line[start+3 : end])
return
return port, err
}
// pasv issues a "PASV" command to get a port number for a data connection.
func (c *ServerConn) pasv() (host string, port int, err error) {
_, line, err := c.cmd(StatusPassiveMode, "PASV")
if err != nil {
return
return "", 0, err
}
// PASV response format : 227 Entering Passive Mode (h1,h2,h3,h4,p1,p2).
start := strings.Index(line, "(")
end := strings.LastIndex(line, ")")
if start == -1 || end == -1 {
err = errors.New("invalid PASV response format")
return
return "", 0, errors.New("invalid PASV response format")
}
// We have to split the response string
pasvData := strings.Split(line[start+1:end], ",")
if len(pasvData) < 6 {
err = errors.New("invalid PASV response format")
return
return "", 0, errors.New("invalid PASV response format")
}
// Let's compute the port number
portPart1, err1 := strconv.Atoi(pasvData[4])
if err1 != nil {
err = err1
return
portPart1, err := strconv.Atoi(pasvData[4])
if err != nil {
return "", 0, err
}
portPart2, err2 := strconv.Atoi(pasvData[5])
if err2 != nil {
err = err2
return
portPart2, err := strconv.Atoi(pasvData[5])
if err != nil {
return "", 0, err
}
// Recompose port
@ -435,7 +430,7 @@ func (c *ServerConn) pasv() (host string, port int, err error) {
// Make the IP address to connect to
host = strings.Join(pasvData[0:4], ".")
return
return host, port, nil
}
// getDataConnPort returns a host, port for a new data connection
@ -535,7 +530,7 @@ func (c *ServerConn) cmdDataConnFrom(offset uint64, format string, args ...inter
func (c *ServerConn) NameList(path string) (entries []string, err error) {
conn, err := c.cmdDataConnFrom(0, "NLST %s", path)
if err != nil {
return
return nil, err
}
r := &Response{conn: conn, c: c}
@ -548,7 +543,7 @@ func (c *ServerConn) NameList(path string) (entries []string, err error) {
if err = scanner.Err(); err != nil {
return entries, err
}
return
return entries, nil
}
// List issues a LIST FTP command.
@ -566,7 +561,7 @@ func (c *ServerConn) List(path string) (entries []*Entry, err error) {
conn, err := c.cmdDataConnFrom(0, "%s %s", cmd, path)
if err != nil {
return
return nil, err
}
r := &Response{conn: conn, c: c}
@ -583,7 +578,7 @@ func (c *ServerConn) List(path string) (entries []*Entry, err error) {
if err := scanner.Err(); err != nil {
return nil, err
}
return
return entries, nil
}
// ChangeDir issues a CWD FTP command, which changes the current directory to