net/netip: add new IP address package

Co-authored-by: Alex Willmer <alex@moreati.org.uk> (GitHub @moreati)
Co-authored-by: Alexander Yastrebov <yastrebov.alex@gmail.com>
Co-authored-by: David Anderson <dave@natulte.net> (Tailscale CLA)
Co-authored-by: David Crawshaw <crawshaw@tailscale.com> (Tailscale CLA)
Co-authored-by: Dmytro Shynkevych <dmytro@tailscale.com> (Tailscale CLA)
Co-authored-by: Elias Naur <mail@eliasnaur.com>
Co-authored-by: Joe Tsai <joetsai@digital-static.net> (Tailscale CLA)
Co-authored-by: Jonathan Yu <jawnsy@cpan.org> (GitHub @jawnsy)
Co-authored-by: Josh Bleecher Snyder <josharian@gmail.com> (Tailscale CLA)
Co-authored-by: Maisem Ali <maisem@tailscale.com> (Tailscale CLA)
Co-authored-by: Manuel Mendez (Go AUTHORS mmendez534@...)
Co-authored-by: Matt Layher <mdlayher@gmail.com>
Co-authored-by: Noah Treuhaft <noah.treuhaft@gmail.com> (GitHub @nwt)
Co-authored-by: Stefan Majer <stefan.majer@gmail.com>
Co-authored-by: Terin Stock <terinjokes@gmail.com> (Cloudflare CLA)
Co-authored-by: Tobias Klauser <tklauser@distanz.ch>

Fixes #46518

Change-Id: I0041f9e1115d61fa6e95fcf32b01d9faee708712
Reviewed-on: https://go-review.googlesource.com/c/go/+/339309
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Russ Cox <rsc@golang.org>
Trust: Brad Fitzpatrick <bradfitz@golang.org>
This commit is contained in:
Brad Fitzpatrick 2021-08-02 14:55:51 -07:00
parent 81fea0b4fd
commit a59e33224e
26 changed files with 4694 additions and 68 deletions

View file

@ -341,26 +341,3 @@ func readFull(r io.Reader) (all []byte, err error) {
}
}
}
// goDebugString returns the value of the named GODEBUG key.
// GODEBUG is of the form "key=val,key2=val2"
func goDebugString(key string) string {
s := os.Getenv("GODEBUG")
for i := 0; i < len(s)-len(key)-1; i++ {
if i > 0 && s[i-1] != ',' {
continue
}
afterKey := s[i+len(key):]
if afterKey[0] != '=' || s[i:i+len(key)] != key {
continue
}
val := afterKey[1:]
for i, b := range val {
if b == ',' {
return val[:i]
}
}
return val
}
return ""
}