commit e047566fdf82409bf7a52212cf71df83ea2772fb
author Sergey Ivanov <ser1325@gmail.com> Tue Jan 21 14:12:35 2020 +0300
committer Ian Lance Taylor <iant@golang.org> Wed Jan 22 13:43:26 2020 +0000
tree 734b8257bbbfa6f5335236afdc54985d266dd57c
parent 34d275377bf96a094e8d5b0c61750ddd54cd6b36

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>

unix/syscall_linux_arm.go

diff --git a/unix/syscall_linux_arm.go b/unix/syscall_linux_arm.go
index 11930fc..99ae613 100644
--- a/unix/syscall_linux_arm.go
+++ b/unix/syscall_linux_arm.go
@@ -98,8 +98,8 @@
 //sys	Renameat(olddirfd int, oldpath string, newdirfd int, newpath string) (err error)
 //sys	sendfile(outfd int, infd int, offset *int64, count int) (written int, err error) = SYS_SENDFILE64
 //sys	Select(nfd int, r *FdSet, w *FdSet, e *FdSet, timeout *Timeval) (n int, err error) = SYS__NEWSELECT
-//sys	Setfsgid(gid int) (err error) = SYS_SETFSGID32
-//sys	Setfsuid(uid int) (err error) = SYS_SETFSUID32
+//sys	setfsgid(gid int) (prev int, err error) = SYS_SETFSGID32
+//sys	setfsuid(uid int) (prev int, err error) = SYS_SETFSUID32
 //sysnb	Setregid(rgid int, egid int) (err error) = SYS_SETREGID32
 //sysnb	Setresgid(rgid int, egid int, sgid int) (err error) = SYS_SETRESGID32
 //sysnb	Setresuid(ruid int, euid int, suid int) (err error) = SYS_SETRESUID32