diff options
Diffstat (limited to 'vendor/golang.org/x/sys/unix/sockcmsg_unix.go')
| -rw-r--r-- | vendor/golang.org/x/sys/unix/sockcmsg_unix.go | 28 |
1 files changed, 22 insertions, 6 deletions
diff --git a/vendor/golang.org/x/sys/unix/sockcmsg_unix.go b/vendor/golang.org/x/sys/unix/sockcmsg_unix.go index 9dd2f32..062bcab 100644 --- a/vendor/golang.org/x/sys/unix/sockcmsg_unix.go +++ b/vendor/golang.org/x/sys/unix/sockcmsg_unix.go @@ -8,17 +8,33 @@ package unix -import "unsafe" +import ( + "runtime" + "unsafe" +) // Round the length of a raw sockaddr up to align it properly. func cmsgAlignOf(salen int) int { salign := SizeofPtr - // NOTE: It seems like 64-bit Darwin, DragonFly BSD and - // Solaris kernels still require 32-bit aligned access to - // network subsystem. - if darwin64Bit || dragonfly64Bit || solaris64Bit { - salign = 4 + + 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) } |