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#42: Reverting return values in b64linebreaker.go since return values were defined in signature

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Winni Neessen 2022-09-08 15:40:42 +02:00
parent a4d927b518
commit 3eb4bc9c52
Signed by: wneessen
GPG key ID: 385AC9889632126E
1 changed files with 5 additions and 8 deletions
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13
b64linebreaker.go
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@ -5,12 +5,9 @@
package mail package mail
import ( import (
"fmt"
"io" "io"
) )
const ErrNoOutWriter = "no io.Writer set for Base64LineBreaker"
// Base64LineBreaker is a io.WriteCloser that writes Base64 encoded data streams // Base64LineBreaker is a io.WriteCloser that writes Base64 encoded data streams
// with line breaks at a given line length // with line breaks at a given line length
type Base64LineBreaker struct { type Base64LineBreaker struct {
@ -25,7 +22,7 @@ var nl = []byte(SingleNewLine)
// line length is reached // line length is reached
func (l *Base64LineBreaker) Write(b []byte) (n int, err error) { func (l *Base64LineBreaker) Write(b []byte) (n int, err error) {
if l.out == nil { if l.out == nil {
return 0, fmt.Errorf(ErrNoOutWriter) return
} }
if l.used+len(b) < MaxBodyLength { if l.used+len(b) < MaxBodyLength {
copy(l.line[l.used:], b) copy(l.line[l.used:], b)
@ -35,19 +32,19 @@ func (l *Base64LineBreaker) Write(b []byte) (n int, err error) {
n, err = l.out.Write(l.line[0:l.used]) n, err = l.out.Write(l.line[0:l.used])
if err != nil { if err != nil {
return 0, err return
} }
excess := MaxBodyLength - l.used excess := MaxBodyLength - l.used
l.used = 0 l.used = 0
n, err = l.out.Write(b[0:excess]) n, err = l.out.Write(b[0:excess])
if err != nil { if err != nil {
return 0, err return
} }
n, err = l.out.Write(nl) n, err = l.out.Write(nl)
if err != nil { if err != nil {
return 0, err return
} }
return l.Write(b[excess:]) return l.Write(b[excess:])
@ -59,7 +56,7 @@ func (l *Base64LineBreaker) Close() (err error) {
if l.used > 0 { if l.used > 0 {
_, err = l.out.Write(l.line[0:l.used]) _, err = l.out.Write(l.line[0:l.used])
if err != nil { if err != nil {
return err return
} }
_, err = l.out.Write(nl) _, err = l.out.Write(nl)
} }