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authordependabot-preview[bot] <27856297+dependabot-preview[bot]@users.noreply.github.com>2019-12-16 09:18:55 +0000
committerValentin Rothberg <rothberg@redhat.com>2019-12-19 18:17:23 +0100
commit63bda55c1f8ab3d94a4ffc119efa58ed3d0ac57c (patch)
tree71df4bcdaba77fb8dff35bbfbdf8934c21e01405 /vendor/golang.org/x/sys/unix/sockcmsg_unix.go
parent6c7b6d994acddee0d50cec9bbe45fb4cb720a08d (diff)
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update c/buildah to v1.12.0
Also bump docker/docker. Signed-off-by: Valentin Rothberg <rothberg@redhat.com>
Diffstat (limited to 'vendor/golang.org/x/sys/unix/sockcmsg_unix.go')
-rw-r--r--vendor/golang.org/x/sys/unix/sockcmsg_unix.go36
1 files changed, 4 insertions, 32 deletions
diff --git a/vendor/golang.org/x/sys/unix/sockcmsg_unix.go b/vendor/golang.org/x/sys/unix/sockcmsg_unix.go
index 062bcabab..003916ed7 100644
--- a/vendor/golang.org/x/sys/unix/sockcmsg_unix.go
+++ b/vendor/golang.org/x/sys/unix/sockcmsg_unix.go
@@ -9,35 +9,9 @@
package unix
import (
- "runtime"
"unsafe"
)
-// Round the length of a raw sockaddr up to align it properly.
-func cmsgAlignOf(salen int) int {
- salign := SizeofPtr
-
- switch runtime.GOOS {
- case "aix":
- // There is no alignment on AIX.
- salign = 1
- case "darwin", "dragonfly", "solaris", "illumos":
- // NOTE: It seems like 64-bit Darwin, DragonFly BSD,
- // illumos, and Solaris kernels still require 32-bit
- // aligned access to network subsystem.
- if SizeofPtr == 8 {
- salign = 4
- }
- case "netbsd", "openbsd":
- // NetBSD and OpenBSD armv7 require 64-bit alignment.
- if runtime.GOARCH == "arm" {
- salign = 8
- }
- }
-
- return (salen + salign - 1) & ^(salign - 1)
-}
-
// CmsgLen returns the value to store in the Len field of the Cmsghdr
// structure, taking into account any necessary alignment.
func CmsgLen(datalen int) int {
@@ -50,8 +24,8 @@ func CmsgSpace(datalen int) int {
return cmsgAlignOf(SizeofCmsghdr) + cmsgAlignOf(datalen)
}
-func cmsgData(h *Cmsghdr) unsafe.Pointer {
- return unsafe.Pointer(uintptr(unsafe.Pointer(h)) + uintptr(cmsgAlignOf(SizeofCmsghdr)))
+func (h *Cmsghdr) data(offset uintptr) unsafe.Pointer {
+ return unsafe.Pointer(uintptr(unsafe.Pointer(h)) + uintptr(cmsgAlignOf(SizeofCmsghdr)) + offset)
}
// SocketControlMessage represents a socket control message.
@@ -94,10 +68,8 @@ func UnixRights(fds ...int) []byte {
h.Level = SOL_SOCKET
h.Type = SCM_RIGHTS
h.SetLen(CmsgLen(datalen))
- data := cmsgData(h)
- for _, fd := range fds {
- *(*int32)(data) = int32(fd)
- data = unsafe.Pointer(uintptr(data) + 4)
+ for i, fd := range fds {
+ *(*int32)(h.data(4 * uintptr(i))) = int32(fd)
}
return b
}