Update dependencies

This commit is contained in:
Frank Denis 2019-04-01 08:21:17 +02:00
parent 8b608403b1
commit 674bd30d45
41 changed files with 565 additions and 176 deletions

View file

@ -146,10 +146,9 @@ func (dns *Msg) IsTsig() *TSIG {
// record in the additional section will do. It returns the OPT record
// found or nil.
func (dns *Msg) IsEdns0() *OPT {
// EDNS0 is at the end of the additional section, start there.
// We might want to change this to *only* look at the last two
// records. So we see TSIG and/or OPT - this a slightly bigger
// change though.
// RFC 6891, Section 6.1.1 allows the OPT record to appear
// anywhere in the additional record section, but it's usually at
// the end so start there.
for i := len(dns.Extra) - 1; i >= 0; i-- {
if dns.Extra[i].Header().Rrtype == TypeOPT {
return dns.Extra[i].(*OPT)
@ -158,6 +157,21 @@ func (dns *Msg) IsEdns0() *OPT {
return nil
}
// popEdns0 is like IsEdns0, but it removes the record from the message.
func (dns *Msg) popEdns0() *OPT {
// RFC 6891, Section 6.1.1 allows the OPT record to appear
// anywhere in the additional record section, but it's usually at
// the end so start there.
for i := len(dns.Extra) - 1; i >= 0; i-- {
if dns.Extra[i].Header().Rrtype == TypeOPT {
opt := dns.Extra[i].(*OPT)
dns.Extra = append(dns.Extra[:i], dns.Extra[i+1:]...)
return opt
}
}
return nil
}
// IsDomainName checks if s is a valid domain name, it returns the number of
// labels and true, when a domain name is valid. Note that non fully qualified
// domain name is considered valid, in this case the last label is counted in