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net, syscall: return source address in Recvmsg

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R=rsc
CC=golang-dev
https://golang.org/cl/3766042
This commit is contained in:
Albert Strasheim 2011-01-19 14:34:53 -05:00 committed by Russ Cox
parent 655da99627
commit 3a97119517
3 changed files with 8 additions and 4 deletions
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2
src/pkg/net/fd.go
View File

@ -417,7 +417,7 @@ func (fd *netFD) ReadMsg(p []byte, oob []byte) (n, oobn, flags int, sa syscall.S
var oserr os.Error
for {
var errno int
n, oobn, flags, errno = syscall.Recvmsg(fd.sysfd, p, oob, sa, 0)
n, oobn, flags, sa, errno = syscall.Recvmsg(fd.sysfd, p, oob, 0)
if errno == syscall.EAGAIN && fd.rdeadline >= 0 {
pollserver.WaitRead(fd)
continue

4
src/pkg/syscall/syscall_bsd.go
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@ -485,8 +485,8 @@ func Futimes(fd int, tv []Timeval) (errno int) {
//sys fcntl(fd int, cmd int, arg int) (val int, errno int)
func Recvmsg(fd int, p, oob []byte, from Sockaddr, flags int) (n, oobn int, recvflags int, errno int) {
return 0, 0, 0, EAFNOSUPPORT
func Recvmsg(fd int, p, oob []byte, flags int) (n, oobn int, recvflags int, from Sockaddr, errno int) {
return 0, 0, 0, nil, EAFNOSUPPORT
}
func Sendmsg(fd int, p, oob []byte, to Sockaddr, flags int) (errno int) {

6
src/pkg/syscall/syscall_linux.go
View File

@ -450,7 +450,7 @@ func Sendto(fd int, p []byte, flags int, to Sockaddr) (errno int) {
return sendto(fd, p, flags, ptr, n)
}
func Recvmsg(fd int, p, oob []byte, from Sockaddr, flags int) (n, oobn int, recvflags int, errno int) {
func Recvmsg(fd int, p, oob []byte, flags int) (n, oobn int, recvflags int, from Sockaddr, errno int) {
var msg Msghdr
var rsa RawSockaddrAny
msg.Name = (*byte)(unsafe.Pointer(&rsa))
@ -477,6 +477,10 @@ func Recvmsg(fd int, p, oob []byte, from Sockaddr, flags int) (n, oobn int, recv
}
oobn = int(msg.Controllen)
recvflags = int(msg.Flags)
// source address is only specified if the socket is unconnected
if rsa.Addr.Family != 0 {
from, errno = anyToSockaddr(&rsa)
}
return
}