TheArchive/tailscale
1
0
Fork 0
mirror of https://github.com/tailscale/tailscale.git synced 2025-08-11 21:27:31 +00:00
Code Issues Packages Projects Releases Wiki Activity

all: use Go 1.18's strings.Cut

Browse Source 
More remain.

Change-Id: I6ec562cc1f687600758deae1c9d7dbd0d04004cb
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
This commit is contained in:
Brad Fitzpatrick
2022-03-16 14:25:31 -07:00
committed by Brad Fitzpatrick
parent 1f22507c06
commit 61ee72940c
7 changed files with 17 additions and 31 deletions
Download Patch File Download Diff File Expand all files Collapse all files

8
net/dns/resolver/tsdns.go
View File

@@ -976,17 +976,17 @@ const (
// lb._dns-sd._udp.<domain>.
func hasRDNSBonjourPrefix(name dnsname.FQDN) bool {
s := name.WithTrailingDot()
dot := strings.IndexByte(s, '.')
if dot == -1 {
base, rest, ok := strings.Cut(s, ".")
if !ok {
return false // shouldn't happen
}
switch s[:dot] {
switch base {
case "b", "db", "r", "dr", "lb":
default:
return false
}
return strings.HasPrefix(s[dot:], "._dns-sd._udp.")
return strings.HasPrefix(rest, "_dns-sd._udp.")
}
// rawNameToLower converts a raw DNS name to a string, lowercasing it.