diff options
Diffstat (limited to 'src/cmd/vendor/golang.org/x/sys/unix/syscall_bsd.go')
| -rw-r--r-- | src/cmd/vendor/golang.org/x/sys/unix/syscall_bsd.go | 46 |
1 files changed, 23 insertions, 23 deletions
diff --git a/src/cmd/vendor/golang.org/x/sys/unix/syscall_bsd.go b/src/cmd/vendor/golang.org/x/sys/unix/syscall_bsd.go index 9c87c5f07f..eda42671f1 100644 --- a/src/cmd/vendor/golang.org/x/sys/unix/syscall_bsd.go +++ b/src/cmd/vendor/golang.org/x/sys/unix/syscall_bsd.go @@ -325,27 +325,26 @@ func GetsockoptString(fd, level, opt int) (string, error) { //sys sendto(s int, buf []byte, flags int, to unsafe.Pointer, addrlen _Socklen) (err error) //sys recvmsg(s int, msg *Msghdr, flags int) (n int, err error) -func recvmsgRaw(fd int, p, oob []byte, flags int, rsa *RawSockaddrAny) (n, oobn int, recvflags int, err error) { +func recvmsgRaw(fd int, iov []Iovec, oob []byte, flags int, rsa *RawSockaddrAny) (n, oobn int, recvflags int, err error) { var msg Msghdr msg.Name = (*byte)(unsafe.Pointer(rsa)) msg.Namelen = uint32(SizeofSockaddrAny) - var iov Iovec - if len(p) > 0 { - iov.Base = (*byte)(unsafe.Pointer(&p[0])) - iov.SetLen(len(p)) - } var dummy byte if len(oob) > 0 { // receive at least one normal byte - if len(p) == 0 { - iov.Base = &dummy - iov.SetLen(1) + if emptyIovecs(iov) { + var iova [1]Iovec + iova[0].Base = &dummy + iova[0].SetLen(1) + iov = iova[:] } msg.Control = (*byte)(unsafe.Pointer(&oob[0])) msg.SetControllen(len(oob)) } - msg.Iov = &iov - msg.Iovlen = 1 + if len(iov) > 0 { + msg.Iov = &iov[0] + msg.SetIovlen(len(iov)) + } if n, err = recvmsg(fd, &msg, flags); err != nil { return } @@ -356,31 +355,32 @@ func recvmsgRaw(fd int, p, oob []byte, flags int, rsa *RawSockaddrAny) (n, oobn //sys sendmsg(s int, msg *Msghdr, flags int) (n int, err error) -func sendmsgN(fd int, p, oob []byte, ptr unsafe.Pointer, salen _Socklen, flags int) (n int, err error) { +func sendmsgN(fd int, iov []Iovec, oob []byte, ptr unsafe.Pointer, salen _Socklen, flags int) (n int, err error) { var msg Msghdr msg.Name = (*byte)(unsafe.Pointer(ptr)) msg.Namelen = uint32(salen) - var iov Iovec - if len(p) > 0 { - iov.Base = (*byte)(unsafe.Pointer(&p[0])) - iov.SetLen(len(p)) - } var dummy byte + var empty bool if len(oob) > 0 { // send at least one normal byte - if len(p) == 0 { - iov.Base = &dummy - iov.SetLen(1) + empty = emptyIovecs(iov) + if empty { + var iova [1]Iovec + iova[0].Base = &dummy + iova[0].SetLen(1) + iov = iova[:] } msg.Control = (*byte)(unsafe.Pointer(&oob[0])) msg.SetControllen(len(oob)) } - msg.Iov = &iov - msg.Iovlen = 1 + if len(iov) > 0 { + msg.Iov = &iov[0] + msg.SetIovlen(len(iov)) + } if n, err = sendmsg(fd, &msg, flags); err != nil { return 0, err } - if len(oob) > 0 && len(p) == 0 { + if len(oob) > 0 && empty { n = 0 } return n, nil |