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syscall: add linux specific Getsockopt for Ucred struct

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SO_PEERCRED on unix domain socket will fill a Ucred struct,
thus linux needs a custom Getsockopt variant.
Fixes #3836.

R=golang-dev, rsc, iant
CC=golang-dev
https://golang.org/cl/6445104
This commit is contained in:
Andreas Jellinghaus 2012-09-12 06:38:21 -07:00 committed by Ian Lance Taylor
parent f5f651b89a
commit 452d6b46a3
1 changed files with 7 additions and 0 deletions
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7
src/pkg/syscall/syscall_linux.go
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@ -477,6 +477,13 @@ func GetsockoptIPv6Mreq(fd, level, opt int) (*IPv6Mreq, error) {
return &value, err
}
func GetsockoptUcred(fd, level, opt int) (*Ucred, error) {
var value Ucred
vallen := _Socklen(SizeofUcred)
err := getsockopt(fd, level, opt, uintptr(unsafe.Pointer(&value)), &vallen)
return &value, err
}
func SetsockoptInt(fd, level, opt int, value int) (err error) {
var n = int32(value)
return setsockopt(fd, level, opt, uintptr(unsafe.Pointer(&n)), 4)