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44 lines
846 B
44 lines
846 B
package sip
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import (
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"bytes"
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"fmt"
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)
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type MsgIncompleteError struct {
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Msg []byte
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}
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func (err MsgIncompleteError) Error() string {
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return fmt.Sprintf("Incomplete SIP message:\n%s", err.Msg)
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}
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type MsgParseError struct {
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Msg []byte
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Offset int
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}
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func (err MsgParseError) Error() string {
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lines := bytes.Split(err.Msg, []byte("\r\n"))
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var b bytes.Buffer
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o := 0
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line := 0
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lineOffset := 0
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for i := 0; i < len(lines); i++ {
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b.Write(lines[i])
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if o <= err.Offset && err.Offset < o+len(lines[i]) {
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line = i + 1
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lineOffset = err.Offset - o
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b.WriteByte('\n')
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for j := 0; j < lineOffset; j++ {
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b.WriteByte(' ')
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}
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b.WriteByte('^')
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}
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o += len(lines[i]) + 2
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if i < len(lines)-1 {
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b.WriteByte('\n')
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}
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}
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return fmt.Sprintf("Error in SIP message at line %d offset %d:\n%s", line, lineOffset, b.String())
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}
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