1 files changed, 22 insertions, 10 deletions
diff --git a/vendor/golang.org/x/sys/unix/syscall_linux.go b/vendor/golang.org/x/sys/unix/syscall_linux.go
index 5e4a94f73..47146911f 100644
--- a/vendor/golang.org/x/sys/unix/syscall_linux.go
+++ b/vendor/golang.org/x/sys/unix/syscall_linux.go
@@ -13,6 +13,7 @@ package unix
 
 import (
 	"encoding/binary"
+	"strconv"
 	"syscall"
 	"time"
 	"unsafe"
@@ -233,7 +234,7 @@ func Futimesat(dirfd int, path string, tv []Timeval) error {
 func Futimes(fd int, tv []Timeval) (err error) {
 	// Believe it or not, this is the best we can do on Linux
 	// (and is what glibc does).
-	return Utimes("/proc/self/fd/"+itoa(fd), tv)
+	return Utimes("/proc/self/fd/"+strconv.Itoa(fd), tv)
 }
 
 const ImplementsGetwd = true
@@ -1541,7 +1542,7 @@ func sendmsgN(fd int, iov []Iovec, oob []byte, ptr unsafe.Pointer, salen _Sockle
 	var dummy byte
 	var empty bool
 	if len(oob) > 0 {
-		empty := emptyIovecs(iov)
+		empty = emptyIovecs(iov)
 		if empty {
 			var sockType int
 			sockType, err = GetsockoptInt(fd, SOL_SOCKET, SO_TYPE)
@@ -1891,17 +1892,28 @@ func PrctlRetInt(option int, arg2 uintptr, arg3 uintptr, arg4 uintptr, arg5 uint
 	return int(ret), nil
 }
 
-// issue 1435.
-// On linux Setuid and Setgid only affects the current thread, not the process.
-// This does not match what most callers expect so we must return an error
-// here rather than letting the caller think that the call succeeded.
-
 func Setuid(uid int) (err error) {
-	return EOPNOTSUPP
+	return syscall.Setuid(uid)
+}
+
+func Setgid(gid int) (err error) {
+	return syscall.Setgid(gid)
+}
+
+func Setreuid(ruid, euid int) (err error) {
+	return syscall.Setreuid(ruid, euid)
+}
+
+func Setregid(rgid, egid int) (err error) {
+	return syscall.Setregid(rgid, egid)
+}
+
+func Setresuid(ruid, euid, suid int) (err error) {
+	return syscall.Setresuid(ruid, euid, suid)
 }
 
-func Setgid(uid int) (err error) {
-	return EOPNOTSUPP
+func Setresgid(rgid, egid, sgid int) (err error) {
+	return syscall.Setresgid(rgid, egid, sgid)
 }
 
 // SetfsgidRetGid sets fsgid for current thread and returns previous fsgid set.