unix: add new setfsuid/setfsgid wrappers
Added SetfsgidRetGid and SetfsuidRetUid wrappers for corresponding
syscalls, both returning previous gid or uid set.
Fixes golang/go#36649
Change-Id: I95176f4442258ca68db79cf967fbf0bbf0a57acf
Reviewed-on: https://go-review.googlesource.com/c/sys/+/215579
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Tobias Klauser <tobias.klauser@gmail.com>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
diff --git a/unix/syscall_linux_sparc64.go b/unix/syscall_linux_sparc64.go
index 37321c1..d890a22 100644
--- a/unix/syscall_linux_sparc64.go
+++ b/unix/syscall_linux_sparc64.go
@@ -30,8 +30,8 @@
//sys Seek(fd int, offset int64, whence int) (off int64, err error) = SYS_LSEEK
//sys Select(nfd int, r *FdSet, w *FdSet, e *FdSet, timeout *Timeval) (n int, err error)
//sys sendfile(outfd int, infd int, offset *int64, count int) (written int, err error)
-//sys Setfsgid(gid int) (err error)
-//sys Setfsuid(uid int) (err error)
+//sys setfsgid(gid int) (prev int, err error)
+//sys setfsuid(uid int) (prev int, err error)
//sysnb Setregid(rgid int, egid int) (err error)
//sysnb Setresgid(rgid int, egid int, sgid int) (err error)
//sysnb Setresuid(ruid int, euid int, suid int) (err error)
