diff options
Diffstat (limited to 'vendor/golang.org/x/sys/unix/syscall_freebsd.go')
| -rw-r--r-- | vendor/golang.org/x/sys/unix/syscall_freebsd.go | 249 |
1 files changed, 14 insertions, 235 deletions
diff --git a/vendor/golang.org/x/sys/unix/syscall_freebsd.go b/vendor/golang.org/x/sys/unix/syscall_freebsd.go index ba9df4a..77a634c 100644 --- a/vendor/golang.org/x/sys/unix/syscall_freebsd.go +++ b/vendor/golang.org/x/sys/unix/syscall_freebsd.go @@ -13,7 +13,6 @@ package unix import ( - "strings" "unsafe" ) @@ -58,14 +57,21 @@ func nametomib(name string) (mib []_C_int, err error) { return buf[0 : n/siz], nil } -//sysnb pipe() (r int, w int, err error) - func Pipe(p []int) (err error) { + return Pipe2(p, 0) +} + +//sysnb pipe2(p *[2]_C_int, flags int) (err error) + +func Pipe2(p []int, flags int) error { if len(p) != 2 { return EINVAL } - p[0], p[1], err = pipe() - return + var pp [2]_C_int + err := pipe2(&pp, flags) + p[0] = int(pp[0]) + p[1] = int(pp[1]) + return err } func GetsockoptIPMreqn(fd, level, opt int) (*IPMreqn, error) { @@ -89,7 +95,7 @@ func Accept4(fd, flags int) (nfd int, sa Sockaddr, err error) { if len > SizeofSockaddrAny { panic("RawSockaddrAny too small") } - sa, err = anyToSockaddr(&rsa) + sa, err = anyToSockaddr(fd, &rsa) if err != nil { Close(nfd) nfd = 0 @@ -134,225 +140,6 @@ func setattrlistTimes(path string, times []Timespec, flags int) error { return ENOSYS } -// Derive extattr namespace and attribute name - -func xattrnamespace(fullattr string) (ns int, attr string, err error) { - s := strings.IndexByte(fullattr, '.') - if s == -1 { - return -1, "", ENOATTR - } - - namespace := fullattr[0:s] - attr = fullattr[s+1:] - - switch namespace { - case "user": - return EXTATTR_NAMESPACE_USER, attr, nil - case "system": - return EXTATTR_NAMESPACE_SYSTEM, attr, nil - default: - return -1, "", ENOATTR - } -} - -func initxattrdest(dest []byte, idx int) (d unsafe.Pointer) { - if len(dest) > idx { - return unsafe.Pointer(&dest[idx]) - } else { - return unsafe.Pointer(_zero) - } -} - -// FreeBSD implements its own syscalls to handle extended attributes - -func Getxattr(file string, attr string, dest []byte) (sz int, err error) { - d := initxattrdest(dest, 0) - destsize := len(dest) - - nsid, a, err := xattrnamespace(attr) - if err != nil { - return -1, err - } - - return ExtattrGetFile(file, nsid, a, uintptr(d), destsize) -} - -func Fgetxattr(fd int, attr string, dest []byte) (sz int, err error) { - d := initxattrdest(dest, 0) - destsize := len(dest) - - nsid, a, err := xattrnamespace(attr) - if err != nil { - return -1, err - } - - return ExtattrGetFd(fd, nsid, a, uintptr(d), destsize) -} - -func Lgetxattr(link string, attr string, dest []byte) (sz int, err error) { - d := initxattrdest(dest, 0) - destsize := len(dest) - - nsid, a, err := xattrnamespace(attr) - if err != nil { - return -1, err - } - - return ExtattrGetLink(link, nsid, a, uintptr(d), destsize) -} - -// flags are unused on FreeBSD - -func Fsetxattr(fd int, attr string, data []byte, flags int) (err error) { - d := unsafe.Pointer(&data[0]) - datasiz := len(data) - - nsid, a, err := xattrnamespace(attr) - if err != nil { - return - } - - _, err = ExtattrSetFd(fd, nsid, a, uintptr(d), datasiz) - return -} - -func Setxattr(file string, attr string, data []byte, flags int) (err error) { - d := unsafe.Pointer(&data[0]) - datasiz := len(data) - - nsid, a, err := xattrnamespace(attr) - if err != nil { - return - } - - _, err = ExtattrSetFile(file, nsid, a, uintptr(d), datasiz) - return -} - -func Lsetxattr(link string, attr string, data []byte, flags int) (err error) { - d := unsafe.Pointer(&data[0]) - datasiz := len(data) - - nsid, a, err := xattrnamespace(attr) - if err != nil { - return - } - - _, err = ExtattrSetLink(link, nsid, a, uintptr(d), datasiz) - return -} - -func Removexattr(file string, attr string) (err error) { - nsid, a, err := xattrnamespace(attr) - if err != nil { - return - } - - err = ExtattrDeleteFile(file, nsid, a) - return -} - -func Fremovexattr(fd int, attr string) (err error) { - nsid, a, err := xattrnamespace(attr) - if err != nil { - return - } - - err = ExtattrDeleteFd(fd, nsid, a) - return -} - -func Lremovexattr(link string, attr string) (err error) { - nsid, a, err := xattrnamespace(attr) - if err != nil { - return - } - - err = ExtattrDeleteLink(link, nsid, a) - return -} - -func Listxattr(file string, dest []byte) (sz int, err error) { - d := initxattrdest(dest, 0) - destsiz := len(dest) - - // FreeBSD won't allow you to list xattrs from multiple namespaces - s := 0 - for _, nsid := range [...]int{EXTATTR_NAMESPACE_USER, EXTATTR_NAMESPACE_SYSTEM} { - stmp, e := ExtattrListFile(file, nsid, uintptr(d), destsiz) - - /* Errors accessing system attrs are ignored so that - * we can implement the Linux-like behavior of omitting errors that - * we don't have read permissions on - * - * Linux will still error if we ask for user attributes on a file that - * we don't have read permissions on, so don't ignore those errors - */ - if e != nil && e == EPERM && nsid != EXTATTR_NAMESPACE_USER { - continue - } else if e != nil { - return s, e - } - - s += stmp - destsiz -= s - if destsiz < 0 { - destsiz = 0 - } - d = initxattrdest(dest, s) - } - - return s, nil -} - -func Flistxattr(fd int, dest []byte) (sz int, err error) { - d := initxattrdest(dest, 0) - destsiz := len(dest) - - s := 0 - for _, nsid := range [...]int{EXTATTR_NAMESPACE_USER, EXTATTR_NAMESPACE_SYSTEM} { - stmp, e := ExtattrListFd(fd, nsid, uintptr(d), destsiz) - if e != nil && e == EPERM && nsid != EXTATTR_NAMESPACE_USER { - continue - } else if e != nil { - return s, e - } - - s += stmp - destsiz -= s - if destsiz < 0 { - destsiz = 0 - } - d = initxattrdest(dest, s) - } - - return s, nil -} - -func Llistxattr(link string, dest []byte) (sz int, err error) { - d := initxattrdest(dest, 0) - destsiz := len(dest) - - s := 0 - for _, nsid := range [...]int{EXTATTR_NAMESPACE_USER, EXTATTR_NAMESPACE_SYSTEM} { - stmp, e := ExtattrListLink(link, nsid, uintptr(d), destsiz) - if e != nil && e == EPERM && nsid != EXTATTR_NAMESPACE_USER { - continue - } else if e != nil { - return s, e - } - - s += stmp - destsiz -= s - if destsiz < 0 { - destsiz = 0 - } - d = initxattrdest(dest, s) - } - - return s, nil -} - //sys ioctl(fd int, req uint, arg uintptr) (err error) // ioctl itself should not be exposed directly, but additional get/set @@ -364,11 +151,11 @@ func IoctlSetInt(fd int, req uint, value int) error { return ioctl(fd, req, uintptr(value)) } -func IoctlSetWinsize(fd int, req uint, value *Winsize) error { +func ioctlSetWinsize(fd int, req uint, value *Winsize) error { return ioctl(fd, req, uintptr(unsafe.Pointer(value))) } -func IoctlSetTermios(fd int, req uint, value *Termios) error { +func ioctlSetTermios(fd int, req uint, value *Termios) error { return ioctl(fd, req, uintptr(unsafe.Pointer(value))) } @@ -602,14 +389,6 @@ func Uname(uname *Utsname) error { // Watchevent // Waitevent // Modwatch -// Getxattr -// Fgetxattr -// Setxattr -// Fsetxattr -// Removexattr -// Fremovexattr -// Listxattr -// Flistxattr // Fsctl // Initgroups // Posix_spawn |