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authorGiles Lean <giles.lean@pobox.com>2010-03-26 13:23:54 -0700
committerGiles Lean <giles.lean@pobox.com>2010-03-26 13:23:54 -0700
commit03b2171652e6d7dc6f1653fb61663d8b268d5d90 (patch)
treee3a2ab918bce86347ea25796c993874bf428df37 /src/pkg
parent62f4ec702a3712916fc115fcd90d886c3fa24bc8 (diff)
downloadgolang-03b2171652e6d7dc6f1653fb61663d8b268d5d90.tar.gz
syscall: Create syscall_bsd.go for code used by Darwin and other *BSDs
In this change I'd like to combine the common code that is present in syscall_darwin.go and syscall_freebsd.go. I have three reasons for wanting to do this now: 1. reducing code duplication is nearly always good :-) 2. the duplication will get worse if I duplicate this code a third time for the NetBSD port I'm working on, which I need to do almost immediately 3. by making this change all in one lump and ignoring any commonality with the syscall_linux*.go files the diff is long but, I think, readable In future it may be possible to cherry pick functions that also apply to Linux and put them in (say) syscall_unix.go, and of course some functions may diverge in future and have to move out to OS or architecture specific files, but today I want just the low hanging fruit. Tested and passed on: Darwin (Snow Leopard, 10.6): amd64 and 386 FreeBSD (8.0-RELEASE): 386 only(*) (*) All my virtualisation software has stopped playing nice with FreeBSD for the moment, so I don't have facilities to test the amd64 port. As the OS X port is OK and the diff looks all right to my eyes I shall keep my fingers crossed. If someone with a FreeBSD/amd64 system cares to test and report I would be appreciative. 2010-03-27 update: I have replaced my virtualisation software, and have working FreeBSD/i386 and FreeBSD/amd64 virtual machines again. As I hoped (and expected -- programmers are optimists :-) the code built and passed all but the two currently known to fail tests on FreeBSD/amd64. I rechecked FreeBSD/i386 too: same results. R=rsc CC=golang-dev http://codereview.appspot.com/751041 Committer: Russ Cox <rsc@golang.org>
Diffstat (limited to 'src/pkg')
-rw-r--r--src/pkg/syscall/Makefile2
-rw-r--r--src/pkg/syscall/syscall_bsd.go467
-rw-r--r--src/pkg/syscall/syscall_darwin.go463
-rw-r--r--src/pkg/syscall/syscall_freebsd.go467
-rw-r--r--src/pkg/syscall/zsyscall_darwin_386.go12
-rw-r--r--src/pkg/syscall/zsyscall_darwin_amd64.go12
6 files changed, 489 insertions, 934 deletions
diff --git a/src/pkg/syscall/Makefile b/src/pkg/syscall/Makefile
index 0e10f3691..3ac99bad9 100644
--- a/src/pkg/syscall/Makefile
+++ b/src/pkg/syscall/Makefile
@@ -18,9 +18,11 @@ GOFILES=\
ztypes_$(GOOS)_$(GOARCH).go\
GOFILES_freebsd=\
+ syscall_bsd.go\
syscall_unix.go\
GOFILES_darwin=\
+ syscall_bsd.go\
syscall_unix.go\
GOFILES_linux=\
diff --git a/src/pkg/syscall/syscall_bsd.go b/src/pkg/syscall/syscall_bsd.go
new file mode 100644
index 000000000..cb7264863
--- /dev/null
+++ b/src/pkg/syscall/syscall_bsd.go
@@ -0,0 +1,467 @@
+// Copyright 2009,2010 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// BSD system call wrappers shared by *BSD based systems
+// including OS X (Darwin) and FreeBSD. Like the other
+// syscall_*.go files it is compiled as Go code but also
+// used as input to mksyscall which parses the //sys
+// lines and generates system call stubs.
+
+package syscall
+
+import "unsafe"
+
+/*
+ * Pseudo-system calls
+ */
+// The const provides a compile-time constant so clients
+// can adjust to whether there is a working Getwd and avoid
+// even linking this function into the binary. See ../os/getwd.go.
+const ImplementsGetwd = false
+
+func Getwd() (string, int) { return "", ENOTSUP }
+
+
+/*
+ * Wrapped
+ */
+
+//sys getgroups(ngid int, gid *_Gid_t) (n int, errno int)
+//sys setgroups(ngid int, gid *_Gid_t) (errno int)
+
+func Getgroups() (gids []int, errno int) {
+ n, err := getgroups(0, nil)
+ if err != 0 {
+ return nil, errno
+ }
+ if n == 0 {
+ return nil, 0
+ }
+
+ // Sanity check group count. Max is 16 on BSD.
+ if n < 0 || n > 1000 {
+ return nil, EINVAL
+ }
+
+ a := make([]_Gid_t, n)
+ n, err = getgroups(n, &a[0])
+ if err != 0 {
+ return nil, errno
+ }
+ gids = make([]int, n)
+ for i, v := range a[0:n] {
+ gids[i] = int(v)
+ }
+ return
+}
+
+func Setgroups(gids []int) (errno int) {
+ if len(gids) == 0 {
+ return setgroups(0, nil)
+ }
+
+ a := make([]_Gid_t, len(gids))
+ for i, v := range gids {
+ a[i] = _Gid_t(v)
+ }
+ return setgroups(len(a), &a[0])
+}
+
+// Wait status is 7 bits at bottom, either 0 (exited),
+// 0x7F (stopped), or a signal number that caused an exit.
+// The 0x80 bit is whether there was a core dump.
+// An extra number (exit code, signal causing a stop)
+// is in the high bits.
+
+type WaitStatus uint32
+
+const (
+ mask = 0x7F
+ core = 0x80
+ shift = 8
+
+ exited = 0
+ stopped = 0x7F
+)
+
+func (w WaitStatus) Exited() bool { return w&mask == exited }
+
+func (w WaitStatus) ExitStatus() int {
+ if w&mask != exited {
+ return -1
+ }
+ return int(w >> shift)
+}
+
+func (w WaitStatus) Signaled() bool { return w&mask != stopped && w&mask != 0 }
+
+func (w WaitStatus) Signal() int {
+ sig := int(w & mask)
+ if sig == stopped || sig == 0 {
+ return -1
+ }
+ return sig
+}
+
+func (w WaitStatus) CoreDump() bool { return w.Signaled() && w&core != 0 }
+
+func (w WaitStatus) Stopped() bool { return w&mask == stopped && w>>shift != SIGSTOP }
+
+func (w WaitStatus) Continued() bool { return w&mask == stopped && w>>shift == SIGSTOP }
+
+func (w WaitStatus) StopSignal() int {
+ if !w.Stopped() {
+ return -1
+ }
+ return int(w>>shift) & 0xFF
+}
+
+func (w WaitStatus) TrapCause() int { return -1 }
+
+//sys wait4(pid int, wstatus *_C_int, options int, rusage *Rusage) (wpid int, errno int)
+
+func Wait4(pid int, wstatus *WaitStatus, options int, rusage *Rusage) (wpid int, errno int) {
+ var status _C_int
+ wpid, errno = wait4(pid, &status, options, rusage)
+ if wstatus != nil {
+ *wstatus = WaitStatus(status)
+ }
+ return
+}
+
+//sys pipe() (r int, w int, errno int)
+
+func Pipe(p []int) (errno int) {
+ if len(p) != 2 {
+ return EINVAL
+ }
+ p[0], p[1], errno = pipe()
+ return
+}
+
+func Sleep(ns int64) (errno int) {
+ tv := NsecToTimeval(ns)
+ return Select(0, nil, nil, nil, &tv)
+}
+
+//sys accept(s int, rsa *RawSockaddrAny, addrlen *_Socklen) (fd int, errno int)
+//sys bind(s int, addr uintptr, addrlen _Socklen) (errno int)
+//sys connect(s int, addr uintptr, addrlen _Socklen) (errno int)
+//sys socket(domain int, typ int, proto int) (fd int, errno int)
+//sys setsockopt(s int, level int, name int, val uintptr, vallen int) (errno int)
+//sys getpeername(fd int, rsa *RawSockaddrAny, addrlen *_Socklen) (errno int)
+//sys getsockname(fd int, rsa *RawSockaddrAny, addrlen *_Socklen) (errno int)
+//sys Shutdown(s int, how int) (errno int)
+
+// For testing: clients can set this flag to force
+// creation of IPv6 sockets to return EAFNOSUPPORT.
+var SocketDisableIPv6 bool
+
+type Sockaddr interface {
+ sockaddr() (ptr uintptr, len _Socklen, errno int) // lowercase; only we can define Sockaddrs
+}
+
+type SockaddrInet4 struct {
+ Port int
+ Addr [4]byte
+ raw RawSockaddrInet4
+}
+
+func (sa *SockaddrInet4) sockaddr() (uintptr, _Socklen, int) {
+ if sa.Port < 0 || sa.Port > 0xFFFF {
+ return 0, 0, EINVAL
+ }
+ sa.raw.Len = SizeofSockaddrInet4
+ sa.raw.Family = AF_INET
+ p := (*[2]byte)(unsafe.Pointer(&sa.raw.Port))
+ p[0] = byte(sa.Port >> 8)
+ p[1] = byte(sa.Port)
+ for i := 0; i < len(sa.Addr); i++ {
+ sa.raw.Addr[i] = sa.Addr[i]
+ }
+ return uintptr(unsafe.Pointer(&sa.raw)), _Socklen(sa.raw.Len), 0
+}
+
+type SockaddrInet6 struct {
+ Port int
+ Addr [16]byte
+ raw RawSockaddrInet6
+}
+
+func (sa *SockaddrInet6) sockaddr() (uintptr, _Socklen, int) {
+ if sa.Port < 0 || sa.Port > 0xFFFF {
+ return 0, 0, EINVAL
+ }
+ sa.raw.Len = SizeofSockaddrInet6
+ sa.raw.Family = AF_INET6
+ p := (*[2]byte)(unsafe.Pointer(&sa.raw.Port))
+ p[0] = byte(sa.Port >> 8)
+ p[1] = byte(sa.Port)
+ for i := 0; i < len(sa.Addr); i++ {
+ sa.raw.Addr[i] = sa.Addr[i]
+ }
+ return uintptr(unsafe.Pointer(&sa.raw)), _Socklen(sa.raw.Len), 0
+}
+
+type SockaddrUnix struct {
+ Name string
+ raw RawSockaddrUnix
+}
+
+func (sa *SockaddrUnix) sockaddr() (uintptr, _Socklen, int) {
+ name := sa.Name
+ n := len(name)
+ if n >= len(sa.raw.Path) || n == 0 {
+ return 0, 0, EINVAL
+ }
+ sa.raw.Len = byte(3 + n) // 2 for Family, Len; 1 for NUL
+ sa.raw.Family = AF_UNIX
+ for i := 0; i < n; i++ {
+ sa.raw.Path[i] = int8(name[i])
+ }
+ return uintptr(unsafe.Pointer(&sa.raw)), _Socklen(sa.raw.Len), 0
+}
+
+func anyToSockaddr(rsa *RawSockaddrAny) (Sockaddr, int) {
+ switch rsa.Addr.Family {
+ case AF_UNIX:
+ pp := (*RawSockaddrUnix)(unsafe.Pointer(rsa))
+ if pp.Len < 3 || pp.Len > SizeofSockaddrUnix {
+ return nil, EINVAL
+ }
+ sa := new(SockaddrUnix)
+ n := int(pp.Len) - 3 // subtract leading Family, Len, terminating NUL
+ for i := 0; i < n; i++ {
+ if pp.Path[i] == 0 {
+ // found early NUL; assume Len is overestimating
+ n = i
+ break
+ }
+ }
+ bytes := (*[len(pp.Path)]byte)(unsafe.Pointer(&pp.Path[0]))
+ sa.Name = string(bytes[0:n])
+ return sa, 0
+
+ case AF_INET:
+ pp := (*RawSockaddrInet4)(unsafe.Pointer(rsa))
+ sa := new(SockaddrInet4)
+ p := (*[2]byte)(unsafe.Pointer(&pp.Port))
+ sa.Port = int(p[0])<<8 + int(p[1])
+ for i := 0; i < len(sa.Addr); i++ {
+ sa.Addr[i] = pp.Addr[i]
+ }
+ return sa, 0
+
+ case AF_INET6:
+ pp := (*RawSockaddrInet6)(unsafe.Pointer(rsa))
+ sa := new(SockaddrInet6)
+ p := (*[2]byte)(unsafe.Pointer(&pp.Port))
+ sa.Port = int(p[0])<<8 + int(p[1])
+ for i := 0; i < len(sa.Addr); i++ {
+ sa.Addr[i] = pp.Addr[i]
+ }
+ return sa, 0
+ }
+ return nil, EAFNOSUPPORT
+}
+
+func Accept(fd int) (nfd int, sa Sockaddr, errno int) {
+ var rsa RawSockaddrAny
+ var len _Socklen = SizeofSockaddrAny
+ nfd, errno = accept(fd, &rsa, &len)
+ if errno != 0 {
+ return
+ }
+ sa, errno = anyToSockaddr(&rsa)
+ if errno != 0 {
+ Close(nfd)
+ nfd = 0
+ }
+ return
+}
+
+func Getsockname(fd int) (sa Sockaddr, errno int) {
+ var rsa RawSockaddrAny
+ var len _Socklen = SizeofSockaddrAny
+ if errno = getsockname(fd, &rsa, &len); errno != 0 {
+ return
+ }
+ return anyToSockaddr(&rsa)
+}
+
+func Getpeername(fd int) (sa Sockaddr, errno int) {
+ var rsa RawSockaddrAny
+ var len _Socklen = SizeofSockaddrAny
+ if errno = getpeername(fd, &rsa, &len); errno != 0 {
+ return
+ }
+ return anyToSockaddr(&rsa)
+}
+
+func Bind(fd int, sa Sockaddr) (errno int) {
+ ptr, n, err := sa.sockaddr()
+ if err != 0 {
+ return err
+ }
+ return bind(fd, ptr, n)
+}
+
+func Connect(fd int, sa Sockaddr) (errno int) {
+ ptr, n, err := sa.sockaddr()
+ if err != 0 {
+ return err
+ }
+ return connect(fd, ptr, n)
+}
+
+func Socket(domain, typ, proto int) (fd, errno int) {
+ if domain == AF_INET6 && SocketDisableIPv6 {
+ return -1, EAFNOSUPPORT
+ }
+ fd, errno = socket(domain, typ, proto)
+ return
+}
+
+func SetsockoptInt(fd, level, opt int, value int) (errno int) {
+ var n = int32(value)
+ return setsockopt(fd, level, opt, uintptr(unsafe.Pointer(&n)), 4)
+}
+
+func SetsockoptTimeval(fd, level, opt int, tv *Timeval) (errno int) {
+ return setsockopt(fd, level, opt, uintptr(unsafe.Pointer(tv)), unsafe.Sizeof(*tv))
+}
+
+func SetsockoptLinger(fd, level, opt int, l *Linger) (errno int) {
+ return setsockopt(fd, level, opt, uintptr(unsafe.Pointer(l)), unsafe.Sizeof(*l))
+}
+
+func SetsockoptString(fd, level, opt int, s string) (errno int) {
+ return setsockopt(fd, level, opt, uintptr(unsafe.Pointer(&[]byte(s)[0])), len(s))
+}
+
+//sys recvfrom(fd int, p []byte, flags int, from *RawSockaddrAny, fromlen *_Socklen) (n int, errno int)
+
+func Recvfrom(fd int, p []byte, flags int) (n int, from Sockaddr, errno int) {
+ var rsa RawSockaddrAny
+ var len _Socklen = SizeofSockaddrAny
+ if n, errno = recvfrom(fd, p, flags, &rsa, &len); errno != 0 {
+ return
+ }
+ from, errno = anyToSockaddr(&rsa)
+ return
+}
+
+//sys sendto(s int, buf []byte, flags int, to uintptr, addrlen _Socklen) (errno int)
+
+func Sendto(fd int, p []byte, flags int, to Sockaddr) (errno int) {
+ ptr, n, err := to.sockaddr()
+ if err != 0 {
+ return err
+ }
+ return sendto(fd, p, flags, ptr, n)
+}
+
+//sys kevent(kq int, change uintptr, nchange int, event uintptr, nevent int, timeout *Timespec) (n int, errno int)
+
+func Kevent(kq int, changes, events []Kevent_t, timeout *Timespec) (n int, errno int) {
+ var change, event uintptr
+ if len(changes) > 0 {
+ change = uintptr(unsafe.Pointer(&changes[0]))
+ }
+ if len(events) > 0 {
+ event = uintptr(unsafe.Pointer(&events[0]))
+ }
+ return kevent(kq, change, len(changes), event, len(events), timeout)
+}
+
+//sys sysctl(mib []_C_int, old *byte, oldlen *uintptr, new *byte, newlen uintptr) (errno int) = SYS___SYSCTL
+
+// 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
+ // size CTL_MAXNAME+2 but use only CTL_MAXNAME
+ // as the size. I don't know why the +2 is here, but the
+ // kernel uses +2 for its own implementation of this function.
+ // I am scared that if we don't include the +2 here, the kernel
+ // will silently write 2 words farther than we specify
+ // and we'll get memory corruption.
+ var buf [CTL_MAXNAME + 2]_C_int
+ n := uintptr(CTL_MAXNAME) * siz
+
+ p := (*byte)(unsafe.Pointer(&buf[0]))
+ bytes := StringByteSlice(name)
+
+ // Magic sysctl: "setting" 0.3 to a string name
+ // lets you read back the array of integers form.
+ if errno = sysctl([]_C_int{0, 3}, p, &n, &bytes[0], uintptr(len(name))); errno != 0 {
+ return nil, errno
+ }
+ return buf[0 : n/siz], 0
+}
+
+func Sysctl(name string) (value string, errno int) {
+ // Translate name to mib number.
+ mib, errno := nametomib(name)
+ if errno != 0 {
+ return "", errno
+ }
+
+ // Find size.
+ n := uintptr(0)
+ if errno = sysctl(mib, nil, &n, nil, 0); errno != 0 {
+ return "", errno
+ }
+ if n == 0 {
+ return "", 0
+ }
+
+ // Read into buffer of that size.
+ buf := make([]byte, n)
+ if errno = sysctl(mib, &buf[0], &n, nil, 0); errno != 0 {
+ return "", errno
+ }
+
+ // Throw away terminating NUL.
+ if n > 0 && buf[n-1] == '\x00' {
+ n--
+ }
+ return string(buf[0:n]), 0
+}
+
+func SysctlUint32(name string) (value uint32, errno int) {
+ // Translate name to mib number.
+ mib, errno := nametomib(name)
+ if errno != 0 {
+ return 0, errno
+ }
+
+ // Read into buffer of that size.
+ n := uintptr(4)
+ buf := make([]byte, 4)
+ if errno = sysctl(mib, &buf[0], &n, nil, 0); errno != 0 {
+ return 0, errno
+ }
+ if n != 4 {
+ return 0, EIO
+ }
+ return *(*uint32)(unsafe.Pointer(&buf[0])), 0
+}
+
+// TODO: wrap
+// Acct(name nil-string) (errno int)
+// Futimes(fd int, timeval *Timeval) (errno int) // Pointer to 2 timevals!
+// Gethostuuid(uuid *byte, timeout *Timespec) (errno int)
+// Getsockopt(s int, level int, name int, val *byte, vallen *int) (errno int)
+// Madvise(addr *byte, len int, behav int) (errno int)
+// Mprotect(addr *byte, len int, prot int) (errno int)
+// Msync(addr *byte, len int, flags int) (errno int)
+// Munmap(addr *byte, len int) (errno int)
+// Ptrace(req int, pid int, addr uintptr, data int) (ret uintptr, errno int)
+// Recvmsg(s int, msg *Msghdr, flags int) (n int, errno int)
+// Sendmsg(s int, msg *Msghdr, flags int) (n int, errno int)
+// Utimes(path string, timeval *Timeval) (errno int) // Pointer to 2 timevals!
+//sys fcntl(fd int, cmd int, arg int) (val int, errno int)
diff --git a/src/pkg/syscall/syscall_darwin.go b/src/pkg/syscall/syscall_darwin.go
index cfac4295b..263588558 100644
--- a/src/pkg/syscall/syscall_darwin.go
+++ b/src/pkg/syscall/syscall_darwin.go
@@ -1,4 +1,4 @@
-// Copyright 2009 The Go Authors. All rights reserved.
+// Copyright 2009,2010 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
@@ -6,477 +6,22 @@
// This file is compiled as ordinary Go code,
// but it is also input to mksyscall,
// which parses the //sys lines and generates system call stubs.
-// Note that sometimes we use a lowercase //sys name and
-// wrap it in our own nicer implementation.
+// Note that sometimes we use a lowercase //sys name and wrap
+// it in our own nicer implementation, either here or in
+// syscall_bsd.go or syscall_unix.go.
package syscall
-import "unsafe"
-
const OS = "darwin"
/*
- * Pseudo-system calls
- */
-// The const provides a compile-time constant so clients
-// can adjust to whether there is a working Getwd and avoid
-// even linking this function into the binary. See ../os/getwd.go.
-const ImplementsGetwd = false
-
-func Getwd() (string, int) { return "", ENOTSUP }
-
-
-/*
* Wrapped
*/
-//sys getgroups(ngid int, gid *_Gid_t) (n int, errno int)
-//sys setgroups(ngid int, gid *_Gid_t) (errno int)
-
-func Getgroups() (gids []int, errno int) {
- n, err := getgroups(0, nil)
- if err != 0 {
- return nil, errno
- }
- if n == 0 {
- return nil, 0
- }
-
- // Sanity check group count. Max is 16 on BSD.
- if n < 0 || n > 1000 {
- return nil, EINVAL
- }
-
- a := make([]_Gid_t, n)
- n, err = getgroups(n, &a[0])
- if err != 0 {
- return nil, errno
- }
- gids = make([]int, n)
- for i, v := range a[0:n] {
- gids[i] = int(v)
- }
- return
-}
-
-func Setgroups(gids []int) (errno int) {
- if len(gids) == 0 {
- return setgroups(0, nil)
- }
-
- a := make([]_Gid_t, len(gids))
- for i, v := range gids {
- a[i] = _Gid_t(v)
- }
- return setgroups(len(a), &a[0])
-}
-
-// Wait status is 7 bits at bottom, either 0 (exited),
-// 0x7F (stopped), or a signal number that caused an exit.
-// The 0x80 bit is whether there was a core dump.
-// An extra number (exit code, signal causing a stop)
-// is in the high bits.
-
-type WaitStatus uint32
-
-const (
- mask = 0x7F
- core = 0x80
- shift = 8
-
- exited = 0
- stopped = 0x7F
-)
-
-func (w WaitStatus) Exited() bool { return w&mask == exited }
-
-func (w WaitStatus) ExitStatus() int {
- if w&mask != exited {
- return -1
- }
- return int(w >> shift)
-}
-
-func (w WaitStatus) Signaled() bool { return w&mask != stopped && w&mask != 0 }
-
-func (w WaitStatus) Signal() int {
- sig := int(w & mask)
- if sig == stopped || sig == 0 {
- return -1
- }
- return sig
-}
-
-func (w WaitStatus) CoreDump() bool { return w.Signaled() && w&core != 0 }
-
-func (w WaitStatus) Stopped() bool { return w&mask == stopped && w>>shift != SIGSTOP }
-
-func (w WaitStatus) Continued() bool { return w&mask == stopped && w>>shift == SIGSTOP }
-
-func (w WaitStatus) StopSignal() int {
- if !w.Stopped() {
- return -1
- }
- return int(w>>shift) & 0xFF
-}
-
-func (w WaitStatus) TrapCause() int {
- // Darwin doesn't have trap causes
- return -1
-}
-
-//sys wait4(pid int, wstatus *_C_int, options int, rusage *Rusage) (wpid int, errno int)
-
-func Wait4(pid int, wstatus *WaitStatus, options int, rusage *Rusage) (wpid int, errno int) {
- var status _C_int
- wpid, errno = wait4(pid, &status, options, rusage)
- if wstatus != nil {
- *wstatus = WaitStatus(status)
- }
- return
-}
-
-//sys pipe() (r int, w int, errno int)
-
-func Pipe(p []int) (errno int) {
- if len(p) != 2 {
- return EINVAL
- }
- p[0], p[1], errno = pipe()
- return
-}
-
-func Sleep(ns int64) (errno int) {
- tv := NsecToTimeval(ns)
- return Select(0, nil, nil, nil, &tv)
-}
-
-//sys accept(s int, rsa *RawSockaddrAny, addrlen *_Socklen) (fd int, errno int)
-//sys bind(s int, addr uintptr, addrlen _Socklen) (errno int)
-//sys connect(s int, addr uintptr, addrlen _Socklen) (errno int)
-//sys socket(domain int, typ int, proto int) (fd int, errno int)
-//sys setsockopt(s int, level int, name int, val uintptr, vallen int) (errno int)
-//sys getpeername(fd int, rsa *RawSockaddrAny, addrlen *_Socklen) (errno int)
-//sys getsockname(fd int, rsa *RawSockaddrAny, addrlen *_Socklen) (errno int)
-//sys Shutdown(s int, how int) (errno int)
-
-// For testing: clients can set this flag to force
-// creation of IPv6 sockets to return EAFNOSUPPORT.
-var SocketDisableIPv6 bool
-
-type Sockaddr interface {
- sockaddr() (ptr uintptr, len _Socklen, errno int) // lowercase; only we can define Sockaddrs
-}
-
-type SockaddrInet4 struct {
- Port int
- Addr [4]byte
- raw RawSockaddrInet4
-}
-
-func (sa *SockaddrInet4) sockaddr() (uintptr, _Socklen, int) {
- if sa.Port < 0 || sa.Port > 0xFFFF {
- return 0, 0, EINVAL
- }
- sa.raw.Len = SizeofSockaddrInet4
- sa.raw.Family = AF_INET
- p := (*[2]byte)(unsafe.Pointer(&sa.raw.Port))
- p[0] = byte(sa.Port >> 8)
- p[1] = byte(sa.Port)
- for i := 0; i < len(sa.Addr); i++ {
- sa.raw.Addr[i] = sa.Addr[i]
- }
- return uintptr(unsafe.Pointer(&sa.raw)), _Socklen(sa.raw.Len), 0
-}
-
-type SockaddrInet6 struct {
- Port int
- Addr [16]byte
- raw RawSockaddrInet6
-}
-
-func (sa *SockaddrInet6) sockaddr() (uintptr, _Socklen, int) {
- if sa.Port < 0 || sa.Port > 0xFFFF {
- return 0, 0, EINVAL
- }
- sa.raw.Len = SizeofSockaddrInet6
- sa.raw.Family = AF_INET6
- p := (*[2]byte)(unsafe.Pointer(&sa.raw.Port))
- p[0] = byte(sa.Port >> 8)
- p[1] = byte(sa.Port)
- for i := 0; i < len(sa.Addr); i++ {
- sa.raw.Addr[i] = sa.Addr[i]
- }
- return uintptr(unsafe.Pointer(&sa.raw)), _Socklen(sa.raw.Len), 0
-}
-
-type SockaddrUnix struct {
- Name string
- raw RawSockaddrUnix
-}
-
-func (sa *SockaddrUnix) sockaddr() (uintptr, _Socklen, int) {
- name := sa.Name
- n := len(name)
- if n >= len(sa.raw.Path) || n == 0 {
- return 0, 0, EINVAL
- }
- sa.raw.Len = byte(3 + n) // 2 for Family, Len; 1 for NUL
- sa.raw.Family = AF_UNIX
- for i := 0; i < n; i++ {
- sa.raw.Path[i] = int8(name[i])
- }
- return uintptr(unsafe.Pointer(&sa.raw)), _Socklen(sa.raw.Len), 0
-}
-
-func anyToSockaddr(rsa *RawSockaddrAny) (Sockaddr, int) {
- switch rsa.Addr.Family {
- case AF_UNIX:
- pp := (*RawSockaddrUnix)(unsafe.Pointer(rsa))
- if pp.Len < 3 || pp.Len > SizeofSockaddrUnix {
- return nil, EINVAL
- }
- sa := new(SockaddrUnix)
- n := int(pp.Len) - 3 // subtract leading Family, Len, terminating NUL
- for i := 0; i < n; i++ {
- if pp.Path[i] == 0 {
- // found early NUL; assume Len is overestimating
- n = i
- break
- }
- }
- bytes := (*[len(pp.Path)]byte)(unsafe.Pointer(&pp.Path[0]))
- sa.Name = string(bytes[0:n])
- return sa, 0
-
- case AF_INET:
- pp := (*RawSockaddrInet4)(unsafe.Pointer(rsa))
- sa := new(SockaddrInet4)
- p := (*[2]byte)(unsafe.Pointer(&pp.Port))
- sa.Port = int(p[0])<<8 + int(p[1])
- for i := 0; i < len(sa.Addr); i++ {
- sa.Addr[i] = pp.Addr[i]
- }
- return sa, 0
-
- case AF_INET6:
- pp := (*RawSockaddrInet6)(unsafe.Pointer(rsa))
- sa := new(SockaddrInet6)
- p := (*[2]byte)(unsafe.Pointer(&pp.Port))
- sa.Port = int(p[0])<<8 + int(p[1])
- for i := 0; i < len(sa.Addr); i++ {
- sa.Addr[i] = pp.Addr[i]
- }
- return sa, 0
- }
- return nil, EAFNOSUPPORT
-}
-
-func Accept(fd int) (nfd int, sa Sockaddr, errno int) {
- var rsa RawSockaddrAny
- var len _Socklen = SizeofSockaddrAny
- nfd, errno = accept(fd, &rsa, &len)
- if errno != 0 {
- return
- }
- sa, errno = anyToSockaddr(&rsa)
- if errno != 0 {
- Close(nfd)
- nfd = 0
- }
- return
-}
-
-func Getsockname(fd int) (sa Sockaddr, errno int) {
- var rsa RawSockaddrAny
- var len _Socklen = SizeofSockaddrAny
- if errno = getsockname(fd, &rsa, &len); errno != 0 {
- return
- }
- return anyToSockaddr(&rsa)
-}
-
-func Getpeername(fd int) (sa Sockaddr, errno int) {
- var rsa RawSockaddrAny
- var len _Socklen = SizeofSockaddrAny
- if errno = getpeername(fd, &rsa, &len); errno != 0 {
- return
- }
- return anyToSockaddr(&rsa)
-}
-
-func Bind(fd int, sa Sockaddr) (errno int) {
- ptr, n, err := sa.sockaddr()
- if err != 0 {
- return err
- }
- return bind(fd, ptr, n)
-}
-
-func Connect(fd int, sa Sockaddr) (errno int) {
- ptr, n, err := sa.sockaddr()
- if err != 0 {
- return err
- }
- return connect(fd, ptr, n)
-}
-
-func Socket(domain, typ, proto int) (fd, errno int) {
- if domain == AF_INET6 && SocketDisableIPv6 {
- return -1, EAFNOSUPPORT
- }
- fd, errno = socket(domain, typ, proto)
- return
-}
-
-func SetsockoptInt(fd, level, opt int, value int) (errno int) {
- var n = int32(value)
- return setsockopt(fd, level, opt, uintptr(unsafe.Pointer(&n)), 4)
-}
-
-func SetsockoptTimeval(fd, level, opt int, tv *Timeval) (errno int) {
- return setsockopt(fd, level, opt, uintptr(unsafe.Pointer(tv)), unsafe.Sizeof(*tv))
-}
-
-func SetsockoptLinger(fd, level, opt int, l *Linger) (errno int) {
- return setsockopt(fd, level, opt, uintptr(unsafe.Pointer(l)), unsafe.Sizeof(*l))
-}
-
-func SetsockoptString(fd, level, opt int, s string) (errno int) {
- return setsockopt(fd, level, opt, uintptr(unsafe.Pointer(&[]byte(s)[0])), len(s))
-}
-
-//sys recvfrom(fd int, p []byte, flags int, from *RawSockaddrAny, fromlen *_Socklen) (n int, errno int)
-
-func Recvfrom(fd int, p []byte, flags int) (n int, from Sockaddr, errno int) {
- var rsa RawSockaddrAny
- var len _Socklen = SizeofSockaddrAny
- if n, errno = recvfrom(fd, p, flags, &rsa, &len); errno != 0 {
- return
- }
- from, errno = anyToSockaddr(&rsa)
- return
-}
-
-//sys sendto(s int, buf []byte, flags int, to uintptr, addrlen _Socklen) (errno int)
-
-func Sendto(fd int, p []byte, flags int, to Sockaddr) (errno int) {
- ptr, n, err := to.sockaddr()
- if err != 0 {
- return err
- }
- return sendto(fd, p, flags, ptr, n)
-}
-
-//sys kevent(kq int, change uintptr, nchange int, event uintptr, nevent int, timeout *Timespec) (n int, errno int)
-
-func Kevent(kq int, changes, events []Kevent_t, timeout *Timespec) (n int, errno int) {
- var change, event uintptr
- if len(changes) > 0 {
- change = uintptr(unsafe.Pointer(&changes[0]))
- }
- if len(events) > 0 {
- event = uintptr(unsafe.Pointer(&events[0]))
- }
- return kevent(kq, change, len(changes), event, len(events), timeout)
-}
-
-//sys sysctl(mib []_C_int, old *byte, oldlen *uintptr, new *byte, newlen uintptr) (errno int) = SYS___SYSCTL
-
-// 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
- // size CTL_MAXNAME+2 but use only CTL_MAXNAME
- // as the size. I don't know why the +2 is here, but the
- // kernel uses +2 for its own implementation of this function.
- // I am scared that if we don't include the +2 here, the kernel
- // will silently write 2 words farther than we specify
- // and we'll get memory corruption.
- var buf [CTL_MAXNAME + 2]_C_int
- n := uintptr(CTL_MAXNAME) * siz
-
- p := (*byte)(unsafe.Pointer(&buf[0]))
- bytes := StringByteSlice(name)
-
- // Magic sysctl: "setting" 0.3 to a string name
- // lets you read back the array of integers form.
- if errno = sysctl([]_C_int{0, 3}, p, &n, &bytes[0], uintptr(len(name))); errno != 0 {
- return nil, errno
- }
- return buf[0 : n/siz], 0
-}
-
-func Sysctl(name string) (value string, errno int) {
- // Translate name to mib number.
- mib, errno := nametomib(name)
- if errno != 0 {
- return "", errno
- }
-
- // Find size.
- n := uintptr(0)
- if errno = sysctl(mib, nil, &n, nil, 0); errno != 0 {
- return "", errno
- }
- if n == 0 {
- return "", 0
- }
-
- // Read into buffer of that size.
- buf := make([]byte, n)
- if errno = sysctl(mib, &buf[0], &n, nil, 0); errno != 0 {
- return "", errno
- }
-
- // Throw away terminating NUL.
- if n > 0 && buf[n-1] == '\x00' {
- n--
- }
- return string(buf[0:n]), 0
-}
-
-func SysctlUint32(name string) (value uint32, errno int) {
- // Translate name to mib number.
- mib, errno := nametomib(name)
- if errno != 0 {
- return 0, errno
- }
-
- // Read into buffer of that size.
- n := uintptr(4)
- buf := make([]byte, 4)
- if errno = sysctl(mib, &buf[0], &n, nil, 0); errno != 0 {
- return 0, errno
- }
- if n != 4 {
- return 0, EIO
- }
- return *(*uint32)(unsafe.Pointer(&buf[0])), 0
-}
-
//sys kill(pid int, signum int, posix int) (errno int)
func Kill(pid int, signum int) (errno int) { return kill(pid, signum, 1) }
-// TODO: wrap
-// Acct(name nil-string) (errno int)
-// Futimes(fd int, timeval *Timeval) (errno int) // Pointer to 2 timevals!
-// Gethostuuid(uuid *byte, timeout *Timespec) (errno int)
-// Getsockopt(s int, level int, name int, val *byte, vallen *int) (errno int)
-// Madvise(addr *byte, len int, behav int) (errno int)
-// Mprotect(addr *byte, len int, prot int) (errno int)
-// Msync(addr *byte, len int, flags int) (errno int)
-// Munmap(addr *byte, len int) (errno int)
-// Ptrace(req int, pid int, addr uintptr, data int) (ret uintptr, errno int)
-// Recvmsg(s int, msg *Msghdr, flags int) (n int, errno int)
-// Sendmsg(s int, msg *Msghdr, flags int) (n int, errno int)
-// Utimes(path string, timeval *Timeval) (errno int) // Pointer to 2 timevals!
-//sys fcntl(fd int, cmd int, arg int) (val int, errno int)
-
-
/*
* Exposed directly
*/
diff --git a/src/pkg/syscall/syscall_freebsd.go b/src/pkg/syscall/syscall_freebsd.go
index a1a34b291..acf636797 100644
--- a/src/pkg/syscall/syscall_freebsd.go
+++ b/src/pkg/syscall/syscall_freebsd.go
@@ -1,4 +1,4 @@
-// Copyright 2009 The Go Authors. All rights reserved.
+// Copyright 2009,2010 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
@@ -6,474 +6,15 @@
// This file is compiled as ordinary Go code,
// but it is also input to mksyscall,
// which parses the //sys lines and generates system call stubs.
-// Note that sometimes we use a lowercase //sys name and
-// wrap it in our own nicer implementation.
+// Note that sometimes we use a lowercase //sys name and wrap
+// it in our own nicer implementation, either here or in
+// syscall_bsd.go or syscall_unix.go.
package syscall
-import "unsafe"
-
const OS = "freebsd"
/*
- * Pseudo-system calls
- */
-// The const provides a compile-time constant so clients
-// can adjust to whether there is a working Getwd and avoid
-// even linking this function into the binary. See ../os/getwd.go.
-const ImplementsGetwd = false
-
-func Getwd() (string, int) { return "", ENOTSUP }
-
-
-/*
- * Wrapped
- */
-
-//sys getgroups(ngid int, gid *_Gid_t) (n int, errno int)
-//sys setgroups(ngid int, gid *_Gid_t) (errno int)
-
-func Getgroups() (gids []int, errno int) {
- n, err := getgroups(0, nil)
- if err != 0 {
- return nil, errno
- }
- if n == 0 {
- return nil, 0
- }
-
- // Sanity check group count. Max is 16 on BSD.
- if n < 0 || n > 1000 {
- return nil, EINVAL
- }
-
- a := make([]_Gid_t, n)
- n, err = getgroups(n, &a[0])
- if err != 0 {
- return nil, errno
- }
- gids = make([]int, n)
- for i, v := range a[0:n] {
- gids[i] = int(v)
- }
- return
-}
-
-func Setgroups(gids []int) (errno int) {
- if len(gids) == 0 {
- return setgroups(0, nil)
- }
-
- a := make([]_Gid_t, len(gids))
- for i, v := range gids {
- a[i] = _Gid_t(v)
- }
- return setgroups(len(a), &a[0])
-}
-
-// Wait status is 7 bits at bottom, either 0 (exited),
-// 0x7F (stopped), or a signal number that caused an exit.
-// The 0x80 bit is whether there was a core dump.
-// An extra number (exit code, signal causing a stop)
-// is in the high bits.
-
-type WaitStatus uint32
-
-const (
- mask = 0x7F
- core = 0x80
- shift = 8
-
- exited = 0
- stopped = 0x7F
-)
-
-func (w WaitStatus) Exited() bool { return w&mask == exited }
-
-func (w WaitStatus) ExitStatus() int {
- if w&mask != exited {
- return -1
- }
- return int(w >> shift)
-}
-
-func (w WaitStatus) Signaled() bool { return w&mask != stopped && w&mask != 0 }
-
-func (w WaitStatus) Signal() int {
- sig := int(w & mask)
- if sig == stopped || sig == 0 {
- return -1
- }
- return sig
-}
-
-func (w WaitStatus) CoreDump() bool { return w.Signaled() && w&core != 0 }
-
-func (w WaitStatus) Stopped() bool { return w&mask == stopped && w>>shift != SIGSTOP }
-
-func (w WaitStatus) Continued() bool { return w&mask == stopped && w>>shift == SIGSTOP }
-
-func (w WaitStatus) StopSignal() int {
- if !w.Stopped() {
- return -1
- }
- return int(w>>shift) & 0xFF
-}
-
-func (w WaitStatus) TrapCause() int {
- // Darwin doesn't have trap causes
- return -1
-}
-
-//sys wait4(pid int, wstatus *_C_int, options int, rusage *Rusage) (wpid int, errno int)
-
-func Wait4(pid int, wstatus *WaitStatus, options int, rusage *Rusage) (wpid int, errno int) {
- var status _C_int
- wpid, errno = wait4(pid, &status, options, rusage)
- if wstatus != nil {
- *wstatus = WaitStatus(status)
- }
- return
-}
-
-//sys pipe() (r int, w int, errno int)
-
-func Pipe(p []int) (errno int) {
- if len(p) != 2 {
- return EINVAL
- }
- p[0], p[1], errno = pipe()
- return
-}
-
-func Sleep(ns int64) (errno int) {
- tv := NsecToTimeval(ns)
- return Select(0, nil, nil, nil, &tv)
-}
-
-//sys accept(s int, rsa *RawSockaddrAny, addrlen *_Socklen) (fd int, errno int)
-//sys bind(s int, addr uintptr, addrlen _Socklen) (errno int)
-//sys connect(s int, addr uintptr, addrlen _Socklen) (errno int)
-//sys socket(domain int, typ int, proto int) (fd int, errno int)
-//sys setsockopt(s int, level int, name int, val uintptr, vallen int) (errno int)
-//sys getpeername(fd int, rsa *RawSockaddrAny, addrlen *_Socklen) (errno int)
-//sys getsockname(fd int, rsa *RawSockaddrAny, addrlen *_Socklen) (errno int)
-//sys Shutdown(s int, how int) (errno int)
-
-// For testing: clients can set this flag to force
-// creation of IPv6 sockets to return EAFNOSUPPORT.
-var SocketDisableIPv6 bool
-
-type Sockaddr interface {
- sockaddr() (ptr uintptr, len _Socklen, errno int) // lowercase; only we can define Sockaddrs
-}
-
-type SockaddrInet4 struct {
- Port int
- Addr [4]byte
- raw RawSockaddrInet4
-}
-
-func (sa *SockaddrInet4) sockaddr() (uintptr, _Socklen, int) {
- if sa.Port < 0 || sa.Port > 0xFFFF {
- return 0, 0, EINVAL
- }
- sa.raw.Len = SizeofSockaddrInet4
- sa.raw.Family = AF_INET
- p := (*[2]byte)(unsafe.Pointer(&sa.raw.Port))
- p[0] = byte(sa.Port >> 8)
- p[1] = byte(sa.Port)
- for i := 0; i < len(sa.Addr); i++ {
- sa.raw.Addr[i] = sa.Addr[i]
- }
- return uintptr(unsafe.Pointer(&sa.raw)), _Socklen(sa.raw.Len), 0
-}
-
-type SockaddrInet6 struct {
- Port int
- Addr [16]byte
- raw RawSockaddrInet6
-}
-
-func (sa *SockaddrInet6) sockaddr() (uintptr, _Socklen, int) {
- if sa.Port < 0 || sa.Port > 0xFFFF {
- return 0, 0, EINVAL
- }
- sa.raw.Len = SizeofSockaddrInet6
- sa.raw.Family = AF_INET6
- p := (*[2]byte)(unsafe.Pointer(&sa.raw.Port))
- p[0] = byte(sa.Port >> 8)
- p[1] = byte(sa.Port)
- for i := 0; i < len(sa.Addr); i++ {
- sa.raw.Addr[i] = sa.Addr[i]
- }
- return uintptr(unsafe.Pointer(&sa.raw)), _Socklen(sa.raw.Len), 0
-}
-
-type SockaddrUnix struct {
- Name string
- raw RawSockaddrUnix
-}
-
-func (sa *SockaddrUnix) sockaddr() (uintptr, _Socklen, int) {
- name := sa.Name
- n := len(name)
- if n >= len(sa.raw.Path) || n == 0 {
- return 0, 0, EINVAL
- }
- sa.raw.Len = byte(3 + n) // 2 for Family, Len; 1 for NUL
- sa.raw.Family = AF_UNIX
- for i := 0; i < n; i++ {
- sa.raw.Path[i] = int8(name[i])
- }
- return uintptr(unsafe.Pointer(&sa.raw)), _Socklen(sa.raw.Len), 0
-}
-
-func anyToSockaddr(rsa *RawSockaddrAny) (Sockaddr, int) {
- switch rsa.Addr.Family {
- case AF_UNIX:
- pp := (*RawSockaddrUnix)(unsafe.Pointer(rsa))
- if pp.Len < 3 || pp.Len > SizeofSockaddrUnix {
- return nil, EINVAL
- }
- sa := new(SockaddrUnix)
- n := int(pp.Len) - 3 // subtract leading Family, Len, terminating NUL
- for i := 0; i < n; i++ {
- if pp.Path[i] == 0 {
- // found early NUL; assume Len is overestimating
- n = i
- break
- }
- }
- bytes := (*[len(pp.Path)]byte)(unsafe.Pointer(&pp.Path[0]))
- sa.Name = string(bytes[0:n])
- return sa, 0
-
- case AF_INET:
- pp := (*RawSockaddrInet4)(unsafe.Pointer(rsa))
- sa := new(SockaddrInet4)
- p := (*[2]byte)(unsafe.Pointer(&pp.Port))
- sa.Port = int(p[0])<<8 + int(p[1])
- for i := 0; i < len(sa.Addr); i++ {
- sa.Addr[i] = pp.Addr[i]
- }
- return sa, 0
-
- case AF_INET6:
- pp := (*RawSockaddrInet6)(unsafe.Pointer(rsa))
- sa := new(SockaddrInet6)
- p := (*[2]byte)(unsafe.Pointer(&pp.Port))
- sa.Port = int(p[0])<<8 + int(p[1])
- for i := 0; i < len(sa.Addr); i++ {
- sa.Addr[i] = pp.Addr[i]
- }
- return sa, 0
- }
- return nil, EAFNOSUPPORT
-}
-
-func Accept(fd int) (nfd int, sa Sockaddr, errno int) {
- var rsa RawSockaddrAny
- var len _Socklen = SizeofSockaddrAny
- nfd, errno = accept(fd, &rsa, &len)
- if errno != 0 {
- return
- }
- sa, errno = anyToSockaddr(&rsa)
- if errno != 0 {
- Close(nfd)
- nfd = 0
- }
- return
-}
-
-func Getsockname(fd int) (sa Sockaddr, errno int) {
- var rsa RawSockaddrAny
- var len _Socklen = SizeofSockaddrAny
- if errno = getsockname(fd, &rsa, &len); errno != 0 {
- return
- }
- return anyToSockaddr(&rsa)
-}
-
-func Getpeername(fd int) (sa Sockaddr, errno int) {
- var rsa RawSockaddrAny
- var len _Socklen = SizeofSockaddrAny
- if errno = getpeername(fd, &rsa, &len); errno != 0 {
- return
- }
- return anyToSockaddr(&rsa)
-}
-
-func Bind(fd int, sa Sockaddr) (errno int) {
- ptr, n, err := sa.sockaddr()
- if err != 0 {
- return err
- }
- return bind(fd, ptr, n)
-}
-
-func Connect(fd int, sa Sockaddr) (errno int) {
- ptr, n, err := sa.sockaddr()
- if err != 0 {
- return err
- }
- return connect(fd, ptr, n)
-}
-
-func Socket(domain, typ, proto int) (fd, errno int) {
- if domain == AF_INET6 && SocketDisableIPv6 {
- return -1, EAFNOSUPPORT
- }
- fd, errno = socket(domain, typ, proto)
- return
-}
-
-func SetsockoptInt(fd, level, opt int, value int) (errno int) {
- var n = int32(value)
- return setsockopt(fd, level, opt, uintptr(unsafe.Pointer(&n)), 4)
-}
-
-func SetsockoptTimeval(fd, level, opt int, tv *Timeval) (errno int) {
- return setsockopt(fd, level, opt, uintptr(unsafe.Pointer(tv)), unsafe.Sizeof(*tv))
-}
-
-func SetsockoptLinger(fd, level, opt int, l *Linger) (errno int) {
- return setsockopt(fd, level, opt, uintptr(unsafe.Pointer(l)), unsafe.Sizeof(*l))
-}
-
-func SetsockoptString(fd, level, opt int, s string) (errno int) {
- return setsockopt(fd, level, opt, uintptr(unsafe.Pointer(&[]byte(s)[0])), len(s))
-}
-
-//sys recvfrom(fd int, p []byte, flags int, from *RawSockaddrAny, fromlen *_Socklen) (n int, errno int)
-
-func Recvfrom(fd int, p []byte, flags int) (n int, from Sockaddr, errno int) {
- var rsa RawSockaddrAny
- var len _Socklen = SizeofSockaddrAny
- if n, errno = recvfrom(fd, p, flags, &rsa, &len); errno != 0 {
- return
- }
- from, errno = anyToSockaddr(&rsa)
- return
-}
-
-//sys sendto(s int, buf []byte, flags int, to uintptr, addrlen _Socklen) (errno int)
-
-func Sendto(fd int, p []byte, flags int, to Sockaddr) (errno int) {
- ptr, n, err := to.sockaddr()
- if err != 0 {
- return err
- }
- return sendto(fd, p, flags, ptr, n)
-}
-
-//sys kevent(kq int, change uintptr, nchange int, event uintptr, nevent int, timeout *Timespec) (n int, errno int)
-
-func Kevent(kq int, changes, events []Kevent_t, timeout *Timespec) (n int, errno int) {
- var change, event uintptr
- if len(changes) > 0 {
- change = uintptr(unsafe.Pointer(&changes[0]))
- }
- if len(events) > 0 {
- event = uintptr(unsafe.Pointer(&events[0]))
- }
- return kevent(kq, change, len(changes), event, len(events), timeout)
-}
-
-//sys sysctl(mib []_C_int, old *byte, oldlen *uintptr, new *byte, newlen uintptr) (errno int) = SYS___SYSCTL
-
-// 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
- // size CTL_MAXNAME+2 but use only CTL_MAXNAME
- // as the size. I don't know why the +2 is here, but the
- // kernel uses +2 for its own implementation of this function.
- // I am scared that if we don't include the +2 here, the kernel
- // will silently write 2 words farther than we specify
- // and we'll get memory corruption.
- var buf [CTL_MAXNAME + 2]_C_int
- n := uintptr(CTL_MAXNAME) * siz
-
- p := (*byte)(unsafe.Pointer(&buf[0]))
- bytes := StringByteSlice(name)
-
- // Magic sysctl: "setting" 0.3 to a string name
- // lets you read back the array of integers form.
- if errno = sysctl([]_C_int{0, 3}, p, &n, &bytes[0], uintptr(len(name))); errno != 0 {
- return nil, errno
- }
- return buf[0 : n/siz], 0
-}
-
-func Sysctl(name string) (value string, errno int) {
- // Translate name to mib number.
- mib, errno := nametomib(name)
- if errno != 0 {
- return "", errno
- }
-
- // Find size.
- n := uintptr(0)
- if errno = sysctl(mib, nil, &n, nil, 0); errno != 0 {
- return "", errno
- }
- if n == 0 {
- return "", 0
- }
-
- // Read into buffer of that size.
- buf := make([]byte, n)
- if errno = sysctl(mib, &buf[0], &n, nil, 0); errno != 0 {
- return "", errno
- }
-
- // Throw away terminating NUL.
- if n > 0 && buf[n-1] == '\x00' {
- n--
- }
- return string(buf[0:n]), 0
-}
-
-func SysctlUint32(name string) (value uint32, errno int) {
- // Translate name to mib number.
- mib, errno := nametomib(name)
- if errno != 0 {
- return 0, errno
- }
-
- // Read into buffer of that size.
- n := uintptr(4)
- buf := make([]byte, 4)
- if errno = sysctl(mib, &buf[0], &n, nil, 0); errno != 0 {
- return 0, errno
- }
- if n != 4 {
- return 0, EIO
- }
- return *(*uint32)(unsafe.Pointer(&buf[0])), 0
-}
-
-// TODO: wrap
-// Acct(name nil-string) (errno int)
-// Futimes(fd int, timeval *Timeval) (errno int) // Pointer to 2 timevals!
-// Gethostuuid(uuid *byte, timeout *Timespec) (errno int)
-// Getsockopt(s int, level int, name int, val *byte, vallen *int) (errno int)
-// Madvise(addr *byte, len int, behav int) (errno int)
-// Mprotect(addr *byte, len int, prot int) (errno int)
-// Msync(addr *byte, len int, flags int) (errno int)
-// Munmap(addr *byte, len int) (errno int)
-// Ptrace(req int, pid int, addr uintptr, data int) (ret uintptr, errno int)
-// Recvmsg(s int, msg *Msghdr, flags int) (n int, errno int)
-// Sendmsg(s int, msg *Msghdr, flags int) (n int, errno int)
-// Utimes(path string, timeval *Timeval) (errno int) // Pointer to 2 timevals!
-//sys fcntl(fd int, cmd int, arg int) (val int, errno int)
-
-
-/*
* Exposed directly
*/
//sys Access(path string, flags int) (errno int)
diff --git a/src/pkg/syscall/zsyscall_darwin_386.go b/src/pkg/syscall/zsyscall_darwin_386.go
index 6ce783cb1..e4fc04f4a 100644
--- a/src/pkg/syscall/zsyscall_darwin_386.go
+++ b/src/pkg/syscall/zsyscall_darwin_386.go
@@ -1,4 +1,4 @@
-// mksyscall.sh -l32 syscall_darwin.go syscall_darwin_386.go
+// mksyscall.sh -l32 syscall_bsd.go syscall_darwin.go syscall_darwin_386.go
// MACHINE GENERATED BY THE COMMAND ABOVE; DO NOT EDIT
package syscall
@@ -121,15 +121,15 @@ func sysctl(mib []_C_int, old *byte, oldlen *uintptr, new *byte, newlen uintptr)
return
}
-func kill(pid int, signum int, posix int) (errno int) {
- _, _, e1 := Syscall(SYS_KILL, uintptr(pid), uintptr(signum), uintptr(posix))
+func fcntl(fd int, cmd int, arg int) (val int, errno int) {
+ r0, _, e1 := Syscall(SYS_FCNTL, uintptr(fd), uintptr(cmd), uintptr(arg))
+ val = int(r0)
errno = int(e1)
return
}
-func fcntl(fd int, cmd int, arg int) (val int, errno int) {
- r0, _, e1 := Syscall(SYS_FCNTL, uintptr(fd), uintptr(cmd), uintptr(arg))
- val = int(r0)
+func kill(pid int, signum int, posix int) (errno int) {
+ _, _, e1 := Syscall(SYS_KILL, uintptr(pid), uintptr(signum), uintptr(posix))
errno = int(e1)
return
}
diff --git a/src/pkg/syscall/zsyscall_darwin_amd64.go b/src/pkg/syscall/zsyscall_darwin_amd64.go
index 62985637c..9ffdf793a 100644
--- a/src/pkg/syscall/zsyscall_darwin_amd64.go
+++ b/src/pkg/syscall/zsyscall_darwin_amd64.go
@@ -1,4 +1,4 @@
-// mksyscall.sh syscall_darwin.go syscall_darwin_amd64.go
+// mksyscall.sh syscall_bsd.go syscall_darwin.go syscall_darwin_amd64.go
// MACHINE GENERATED BY THE COMMAND ABOVE; DO NOT EDIT
package syscall
@@ -121,15 +121,15 @@ func sysctl(mib []_C_int, old *byte, oldlen *uintptr, new *byte, newlen uintptr)
return
}
-func kill(pid int, signum int, posix int) (errno int) {
- _, _, e1 := Syscall(SYS_KILL, uintptr(pid), uintptr(signum), uintptr(posix))
+func fcntl(fd int, cmd int, arg int) (val int, errno int) {
+ r0, _, e1 := Syscall(SYS_FCNTL, uintptr(fd), uintptr(cmd), uintptr(arg))
+ val = int(r0)
errno = int(e1)
return
}
-func fcntl(fd int, cmd int, arg int) (val int, errno int) {
- r0, _, e1 := Syscall(SYS_FCNTL, uintptr(fd), uintptr(cmd), uintptr(arg))
- val = int(r0)
+func kill(pid int, signum int, posix int) (errno int) {
+ _, _, e1 := Syscall(SYS_KILL, uintptr(pid), uintptr(signum), uintptr(posix))
errno = int(e1)
return
}