Stowage/go
2
0
Fork 0
mirror of https://github.com/golang/go.git synced 2025-12-08 06:10:04 +00:00
Code Issues Projects Releases Packages Wiki Activity

net: enable SO_REUSEADDR, SO_REUSEPORT options on stream, multicast listeners only

Browse source 
This CL changes default SOL_SOCKET settings to mitigate connect
failure on OpenBSD or similar platforms which support randomized
transport protocol port number assignment.

Fixes #2830.

R=rsc, jsing
CC=golang-dev
https://golang.org/cl/5648044
This commit is contained in:
Mikio Hara 2012-02-11 11:50:51 +09:00
parent 21a3aceb4a
commit 0e3514eaac
6 changed files with 44 additions and 33 deletions
Download patch file Download diff file Expand all files Collapse all files

19
src/pkg/net/sockopt_linux.go
View file

@ -18,23 +18,20 @@ func setDefaultSockopts(s, f, t int) error {
// Note that some operating systems never admit this option.
syscall.SetsockoptInt(s, syscall.IPPROTO_IPV6, syscall.IPV6_V6ONLY, 0)
}
if f == syscall.AF_UNIX ||
(f == syscall.AF_INET || f == syscall.AF_INET6) && t == syscall.SOCK_STREAM {
// Allow reuse of recently-used addresses.
err := syscall.SetsockoptInt(s, syscall.SOL_SOCKET, syscall.SO_REUSEADDR, 1)
if err != nil {
return os.NewSyscallError("setsockopt", err)
}
}
// Allow broadcast.
err := syscall.SetsockoptInt(s, syscall.SOL_SOCKET, syscall.SO_BROADCAST, 1)
if err != nil {
return os.NewSyscallError("setsockopt", err)
}
return nil
}
func setDefaultListenerSockopts(s int) error {
// Allow reuse of recently-used addresses.
err := syscall.SetsockoptInt(s, syscall.SOL_SOCKET, syscall.SO_REUSEADDR, 1)
if err != nil {
return os.NewSyscallError("setsockopt", err)
}
return nil
}