mirror of
https://github.com/tinygo-org/net.git
synced 2026-07-26 08:18:39 +00:00
deadprogram
35e809e0e5
Backport upstream Go standard library changes to TinyGo's net package. Unmodified files (18) replaced directly from Go 1.26.2 source. Modified files (22) merged via 3-way diff, preserving all TinyGo netdev adaptations, TINYGO markers, and embedded-device constraints. Notable upstream changes included: - net/http: cookie handling improvements, fs enhancements, reverse proxy updates, chunked encoding fixes - net/http: ServeMux routing and pattern matching updates - net: IP parsing and MAC address handling improvements - Various doc link syntax modernization (e.g. [Dial], [Buffers]) TinyGo-only files (netdev.go, tlssock.go) unchanged. All TINYGO comment markers preserved.
106 lines
2.2 KiB
Go
106 lines
2.2 KiB
Go
// TINYGO: The following is copied from Go 1.26.2 official implementation.
|
|
|
|
// Copyright 2011 The Go Authors. All rights reserved.
|
|
// Use of this source code is governed by a BSD-style
|
|
// license that can be found in the LICENSE file.
|
|
|
|
package net
|
|
|
|
const hexDigit = "0123456789abcdef"
|
|
|
|
// A HardwareAddr represents a physical hardware address.
|
|
type HardwareAddr []byte
|
|
|
|
func (a HardwareAddr) String() string {
|
|
if len(a) == 0 {
|
|
return ""
|
|
}
|
|
buf := make([]byte, 0, len(a)*3-1)
|
|
for i, b := range a {
|
|
if i > 0 {
|
|
buf = append(buf, ':')
|
|
}
|
|
buf = append(buf, hexDigit[b>>4])
|
|
buf = append(buf, hexDigit[b&0xF])
|
|
}
|
|
return string(buf)
|
|
}
|
|
|
|
// ParseMAC parses s as an IEEE 802 MAC-48, EUI-48, EUI-64, or a 20-octet
|
|
// IP over InfiniBand link-layer address using one of the following formats:
|
|
//
|
|
// 00:00:5e:00:53:01
|
|
// 02:00:5e:10:00:00:00:01
|
|
// 00:00:00:00:fe:80:00:00:00:00:00:00:02:00:5e:10:00:00:00:01
|
|
// 00-00-5e-00-53-01
|
|
// 02-00-5e-10-00-00-00-01
|
|
// 00-00-00-00-fe-80-00-00-00-00-00-00-02-00-5e-10-00-00-00-01
|
|
// 0000.5e00.5301
|
|
// 0200.5e10.0000.0001
|
|
// 0000.0000.fe80.0000.0000.0000.0200.5e10.0000.0001
|
|
// 00005e005301
|
|
func ParseMAC(s string) (hw HardwareAddr, err error) {
|
|
if len(s) < 12 {
|
|
goto error
|
|
}
|
|
|
|
if s[2] == ':' || s[2] == '-' {
|
|
if (len(s)+1)%3 != 0 {
|
|
goto error
|
|
}
|
|
n := (len(s) + 1) / 3
|
|
if n != 6 && n != 8 && n != 20 {
|
|
goto error
|
|
}
|
|
hw = make(HardwareAddr, n)
|
|
for x, i := 0, 0; i < n; i++ {
|
|
var ok bool
|
|
if hw[i], ok = xtoi2(s[x:], s[2]); !ok {
|
|
goto error
|
|
}
|
|
x += 3
|
|
}
|
|
} else if s[4] == '.' {
|
|
if (len(s)+1)%5 != 0 {
|
|
goto error
|
|
}
|
|
n := 2 * (len(s) + 1) / 5
|
|
if n != 6 && n != 8 && n != 20 {
|
|
goto error
|
|
}
|
|
hw = make(HardwareAddr, n)
|
|
for x, i := 0, 0; i < n; i += 2 {
|
|
var ok bool
|
|
if hw[i], ok = xtoi2(s[x:x+2], 0); !ok {
|
|
goto error
|
|
}
|
|
if hw[i+1], ok = xtoi2(s[x+2:], s[4]); !ok {
|
|
goto error
|
|
}
|
|
x += 5
|
|
}
|
|
} else {
|
|
if len(s)%2 != 0 {
|
|
goto error
|
|
}
|
|
|
|
n := len(s) / 2
|
|
if n != 6 && n != 8 && n != 20 {
|
|
goto error
|
|
}
|
|
|
|
hw = make(HardwareAddr, len(s)/2)
|
|
for x, i := 0, 0; i < n; i++ {
|
|
var ok bool
|
|
if hw[i], ok = xtoi2(s[x:x+2], 0); !ok {
|
|
goto error
|
|
}
|
|
x += 2
|
|
}
|
|
}
|
|
return hw, nil
|
|
|
|
error:
|
|
return nil, &AddrError{Err: "invalid MAC address", Addr: s}
|
|
}
|