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unix: unify Sendmsg prologues

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Follow CL 361256 which did the same in package syscall.

Change-Id: Ifd22e515c220806f02400baded821ec583959d78
Reviewed-on: https://go-review.googlesource.com/c/sys/+/393274
Trust: Tobias Klauser <tobias.klauser@gmail.com>
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
This commit is contained in:
Tobias Klauser
2022-03-17 06:14:57 +00:00
committed by Tobias Klauser
parent 2c4bbad7e9
commit 22a226b3d1
5 changed files with 21 additions and 49 deletions
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unix/syscall_linux.go
+1 -15
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@@ -1538,21 +1538,7 @@ func Recvmsg(fd int, p, oob []byte, flags int) (n, oobn int, recvflags int, from
return
}
func Sendmsg(fd int, p, oob []byte, to Sockaddr, flags int) (err error) {
_, err = SendmsgN(fd, p, oob, to, flags)
return
}
func SendmsgN(fd int, p, oob []byte, to Sockaddr, flags int) (n int, err error) {
var ptr unsafe.Pointer
var salen _Socklen
if to != nil {
var err error
ptr, salen, err = to.sockaddr()
if err != nil {
return 0, err
}
}
func sendmsgN(fd int, p, oob []byte, ptr unsafe.Pointer, salen _Socklen, flags int) (n int, err error) {
var msg Msghdr
msg.Name = (*byte)(ptr)
msg.Namelen = uint32(salen)