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net: correct DNS configuration

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Set defaults to the same values as various C DNS resolver libraries.
Use the timeout value from the configuration.
Fixes #632.

R=rsc
CC=golang-dev
https://golang.org/cl/223094
This commit is contained in:
Stephen Ma 2010-03-03 15:25:26 +11:00
parent 486d9eb48e
commit b73e592ed1
2 changed files with 3 additions and 3 deletions
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2
src/pkg/net/dnsclient.go
View File

@ -62,7 +62,7 @@ func _Exchange(cfg *_DNS_Config, c Conn, name string) (m *_DNS_Msg, err os.Error
return nil, err
}
c.SetReadTimeout(1e9) // nanoseconds
c.SetReadTimeout(int64(cfg.timeout) * 1e9) // nanoseconds
buf := make([]byte, 2000) // More than enough.
n, err = c.Read(buf)

4
src/pkg/net/dnsconfig.go
View File

@ -32,8 +32,8 @@ func _DNS_ReadConfig() (*_DNS_Config, os.Error) {
conf.servers = make([]string, 3)[0:0] // small, but the standard limit
conf.search = make([]string, 0)
conf.ndots = 1
conf.timeout = 1
conf.attempts = 1
conf.timeout = 5
conf.attempts = 2
conf.rotate = false
for line, ok := file.readLine(); ok; line, ok = file.readLine() {
f := getFields(line)