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syscall: add sockaddr_dl, sysctl with routing message support for darwin, freebsd

Browse source 
R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/4171043
This commit is contained in:
Mikio Hara 2011-02-11 14:34:00 -05:00 • committed by Russ Cox
parent 48535ae3f1
commit 9c97af99bc
14 changed files with 958 additions and 113 deletions
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54
src/pkg/syscall/syscall_bsd.go
View file

@ -223,8 +223,40 @@ func (sa *SockaddrUnix) sockaddr() (uintptr, _Socklen, int) {
return uintptr(unsafe.Pointer(&sa.raw)), _Socklen(sa.raw.Len), 0
}
func (sa *SockaddrDatalink) sockaddr() (uintptr, _Socklen, int) {
if sa.Index == 0 {
return 0, 0, EINVAL
}
sa.raw.Len = sa.Len
sa.raw.Family = AF_LINK
sa.raw.Index = sa.Index
sa.raw.Type = sa.Type
sa.raw.Nlen = sa.Nlen
sa.raw.Alen = sa.Alen
sa.raw.Slen = sa.Slen
for i := 0; i < len(sa.raw.Data); i++ {
sa.raw.Data[i] = sa.Data[i]
}
return uintptr(unsafe.Pointer(&sa.raw)), SizeofSockaddrDatalink, 0
}
func anyToSockaddr(rsa *RawSockaddrAny) (Sockaddr, int) {
switch rsa.Addr.Family {
case AF_LINK:
pp := (*RawSockaddrDatalink)(unsafe.Pointer(rsa))
sa := new(SockaddrDatalink)
sa.Len = pp.Len
sa.Family = pp.Family
sa.Index = pp.Index
sa.Type = pp.Type
sa.Nlen = pp.Nlen
sa.Alen = pp.Alen
sa.Slen = pp.Slen
for i := 0; i < len(sa.Data); i++ {
sa.Data[i] = pp.Data[i]
}
return sa, 0
case AF_UNIX:
pp := (*RawSockaddrUnix)(unsafe.Pointer(rsa))
if pp.Len < 3 || pp.Len > SizeofSockaddrUnix {
@ -399,7 +431,6 @@ func Kevent(kq int, changes, events []Kevent_t, timeout *Timespec) (n int, errno
// Translate "kern.hostname" to []_C_int{0,1,2,3}.
func nametomib(name string) (mib []_C_int, errno int) {
const CTL_MAXNAME = 12
const siz = uintptr(unsafe.Sizeof(mib[0]))
// NOTE(rsc): It seems strange to set the buffer to have
@ -471,6 +502,27 @@ func SysctlUint32(name string) (value uint32, errno int) {
return *(*uint32)(unsafe.Pointer(&buf[0])), 0
}
func SysctlNetRoute(fourth, fifth, sixth int) (value []byte, errno int) {
mib := []_C_int{CTL_NET, AF_ROUTE, 0, _C_int(fourth), _C_int(fifth), _C_int(sixth)}
// Find size.
n := uintptr(0)
if errno = sysctl(mib, nil, &n, nil, 0); errno != 0 {
return nil, errno
}
if n == 0 {
return nil, 0
}
// Read into buffer of that size.
b := make([]byte, n)
if errno = sysctl(mib, &b[0], &n, nil, 0); errno != 0 {
return nil, errno
}
return b[0:n], 0
}
//sys utimes(path string, timeval *[2]Timeval) (errno int)
func Utimes(path string, tv []Timeval) (errno int) {
if len(tv) != 2 {