vendor, cmd/vendor: update vendored x/sys and x/net

Pick up GOOS=ios changes.

This is done by

cd $GOROOT/src
go get -d golang.org/x/net@latest
go mod tidy
go mod vendor
go get -d golang.org/x/sys@latest
go mod tidy
go mod vendor
cd $GOROOT/src/cmd
go get -d golang.org/x/sys@latest
go mod tidy
go mod vendor

Updates #38485.

Change-Id: Ic2b54febb1f851814c9d76c4b55a8837ac4779f8
Reviewed-on: https://go-review.googlesource.com/c/go/+/257618
Trust: Cherry Zhang <cherryyz@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>

32 files changed, 90 insertions, 50 deletions

diff --git a/src/cmd/go.mod b/src/cmd/go.mod
index c228b04b42..59d6152e2a 100644
--- a/src/cmd/go.mod
+++ b/src/cmd/go.mod
@@ -8,6 +8,6 @@ require (
 	golang.org/x/arch v0.0.0-20200826200359-b19915210f00
 	golang.org/x/crypto v0.0.0-20200820211705-5c72a883971a
 	golang.org/x/mod v0.3.1-0.20200828183125-ce943fd02449
-	golang.org/x/sys v0.0.0-20200918174421-af09f7315aff // indirect
+	golang.org/x/sys v0.0.0-20200923182605-d9f96fdee20d // indirect
 	golang.org/x/tools v0.0.0-20200918232735-d647fc253266
 )
diff --git a/src/cmd/go.sum b/src/cmd/go.sum
index d41f36e147..1b6d680d62 100644
--- a/src/cmd/go.sum
+++ b/src/cmd/go.sum
@@ -26,8 +26,8 @@ golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5h
 golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20191204072324-ce4227a45e2e/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20200323222414-85ca7c5b95cd/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.0.0-20200918174421-af09f7315aff h1:1CPUrky56AcgSpxz/KfgzQWzfG09u5YOL8MvPYBlrL8=
-golang.org/x/sys v0.0.0-20200918174421-af09f7315aff/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20200923182605-d9f96fdee20d h1:L/IKR6COd7ubZrs2oTnTi73IhgqJ71c9s80WsQnh0Es=
+golang.org/x/sys v0.0.0-20200923182605-d9f96fdee20d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
 golang.org/x/tools v0.0.0-20200918232735-d647fc253266 h1:k7tVuG0g1JwmD3Jh8oAl1vQ1C3jb4Hi/dUl1wWDBJpQ=
diff --git a/src/cmd/vendor/golang.org/x/sys/unix/mkerrors.sh b/src/cmd/vendor/golang.org/x/sys/unix/mkerrors.sh
index e7c51aa409..1bef7148d2 100644
--- a/src/cmd/vendor/golang.org/x/sys/unix/mkerrors.sh
+++ b/src/cmd/vendor/golang.org/x/sys/unix/mkerrors.sh
@@ -517,6 +517,7 @@ ccflags="$@"
 		$2 ~ /^CP_/ ||
 		$2 ~ /^CPUSTATES$/ ||
 		$2 ~ /^ALG_/ ||
+		$2 ~ /^FI(CLONE|DEDUPERANGE)/ ||
 		$2 ~ /^FS_(POLICY_FLAGS|KEY_DESC|ENCRYPTION_MODE|[A-Z0-9_]+_KEY_SIZE)/ ||
 		$2 ~ /^FS_IOC_.*(ENCRYPTION|VERITY|[GS]ETFLAGS)/ ||
 		$2 ~ /^FS_VERITY_/ ||
diff --git a/src/cmd/vendor/golang.org/x/sys/unix/sockcmsg_unix_other.go b/src/cmd/vendor/golang.org/x/sys/unix/sockcmsg_unix_other.go
index 7d08dae5ba..abdedcf1d5 100644
--- a/src/cmd/vendor/golang.org/x/sys/unix/sockcmsg_unix_other.go
+++ b/src/cmd/vendor/golang.org/x/sys/unix/sockcmsg_unix_other.go
@@ -20,7 +20,7 @@ func cmsgAlignOf(salen int) int {
 	case "aix":
 		// There is no alignment on AIX.
 		salign = 1
-	case "darwin", "illumos", "solaris":
+	case "darwin", "ios", "illumos", "solaris":
 		// NOTE: It seems like 64-bit Darwin, Illumos and Solaris
 		// kernels still require 32-bit aligned access to network
 		// subsystem.
diff --git a/src/cmd/vendor/golang.org/x/sys/unix/syscall_bsd.go b/src/cmd/vendor/golang.org/x/sys/unix/syscall_bsd.go
index 60bbe10adf..9ebe92e4da 100644
--- a/src/cmd/vendor/golang.org/x/sys/unix/syscall_bsd.go
+++ b/src/cmd/vendor/golang.org/x/sys/unix/syscall_bsd.go
@@ -272,7 +272,7 @@ func Accept(fd int) (nfd int, sa Sockaddr, err error) {
 	if err != nil {
 		return
 	}
-	if runtime.GOOS == "darwin" && len == 0 {
+	if (runtime.GOOS == "darwin" || runtime.GOOS == "ios") && len == 0 {
 		// Accepted socket has no address.
 		// This is likely due to a bug in xnu kernels,
 		// where instead of ECONNABORTED error socket
diff --git a/src/cmd/vendor/golang.org/x/sys/unix/syscall_illumos.go b/src/cmd/vendor/golang.org/x/sys/unix/syscall_illumos.go
index 16e40091ce..bbc4f3ea54 100644
--- a/src/cmd/vendor/golang.org/x/sys/unix/syscall_illumos.go
+++ b/src/cmd/vendor/golang.org/x/sys/unix/syscall_illumos.go
@@ -56,7 +56,7 @@ func Pwritev(fd int, iovs [][]byte, off int64) (n int, err error) {
 	return n, err
 }
 
-//sys	accept4(s int, rsa *RawSockaddrAny, addrlen *_Socklen, flags int) (fd int, err error)
+//sys	accept4(s int, rsa *RawSockaddrAny, addrlen *_Socklen, flags int) (fd int, err error) = libsocket.accept4
 
 func Accept4(fd int, flags int) (nfd int, sa Sockaddr, err error) {
 	var rsa RawSockaddrAny
diff --git a/src/cmd/vendor/golang.org/x/sys/unix/syscall_linux.go b/src/cmd/vendor/golang.org/x/sys/unix/syscall_linux.go
index ec7e4c4d36..94dafa4e52 100644
--- a/src/cmd/vendor/golang.org/x/sys/unix/syscall_linux.go
+++ b/src/cmd/vendor/golang.org/x/sys/unix/syscall_linux.go
@@ -112,6 +112,31 @@ func IoctlGetRTCWkAlrm(fd int) (*RTCWkAlrm, error) {
 	return &value, err
 }
 
+// IoctlFileClone performs an FICLONERANGE ioctl operation to clone the range of
+// data conveyed in value to the file associated with the file descriptor
+// destFd. See the ioctl_ficlonerange(2) man page for details.
+func IoctlFileCloneRange(destFd int, value *FileCloneRange) error {
+	err := ioctl(destFd, FICLONERANGE, uintptr(unsafe.Pointer(value)))
+	runtime.KeepAlive(value)
+	return err
+}
+
+// IoctlFileClone performs an FICLONE ioctl operation to clone the entire file
+// associated with the file description srcFd to the file associated with the
+// file descriptor destFd. See the ioctl_ficlone(2) man page for details.
+func IoctlFileClone(destFd, srcFd int) error {
+	return ioctl(destFd, FICLONE, uintptr(srcFd))
+}
+
+// IoctlFileClone performs an FIDEDUPERANGE ioctl operation to share the range of
+// data conveyed in value with the file associated with the file descriptor
+// destFd. See the ioctl_fideduperange(2) man page for details.
+func IoctlFileDedupeRange(destFd int, value *FileDedupeRange) error {
+	err := ioctl(destFd, FIDEDUPERANGE, uintptr(unsafe.Pointer(value)))
+	runtime.KeepAlive(value)
+	return err
+}
+
 //sys	Linkat(olddirfd int, oldpath string, newdirfd int, newpath string, flags int) (err error)
 
 func Link(oldpath string, newpath string) (err error) {
diff --git a/src/cmd/vendor/golang.org/x/sys/unix/zerrors_linux.go b/src/cmd/vendor/golang.org/x/sys/unix/zerrors_linux.go
index 388050a0f6..79e032f4fb 100644
--- a/src/cmd/vendor/golang.org/x/sys/unix/zerrors_linux.go
+++ b/src/cmd/vendor/golang.org/x/sys/unix/zerrors_linux.go
@@ -686,6 +686,7 @@ const (
 	FD_CLOEXEC                                  = 0x1
 	FD_SETSIZE                                  = 0x400
 	FF0                                         = 0x0
+	FIDEDUPERANGE                               = 0xc0189436
 	FSCRYPT_KEY_DESCRIPTOR_SIZE                 = 0x8
 	FSCRYPT_KEY_DESC_PREFIX                     = "fscrypt:"
 	FSCRYPT_KEY_DESC_PREFIX_SIZE                = 0x8
diff --git a/src/cmd/vendor/golang.org/x/sys/unix/zerrors_linux_386.go b/src/cmd/vendor/golang.org/x/sys/unix/zerrors_linux_386.go
index 11b25f68c2..dd282c08b7 100644
--- a/src/cmd/vendor/golang.org/x/sys/unix/zerrors_linux_386.go
+++ b/src/cmd/vendor/golang.org/x/sys/unix/zerrors_linux_386.go
@@ -71,6 +71,8 @@ const (
 	EXTPROC                          = 0x10000
 	FF1                              = 0x8000
 	FFDLY                            = 0x8000
+	FICLONE                          = 0x40049409
+	FICLONERANGE                     = 0x4020940d
 	FLUSHO                           = 0x1000
 	FP_XSTATE_MAGIC2                 = 0x46505845
 	FS_IOC_ENABLE_VERITY             = 0x40806685
diff --git a/src/cmd/vendor/golang.org/x/sys/unix/zerrors_linux_amd64.go b/src/cmd/vendor/golang.org/x/sys/unix/zerrors_linux_amd64.go
index f92cff6ea0..82fc93c7bb 100644
--- a/src/cmd/vendor/golang.org/x/sys/unix/zerrors_linux_amd64.go
+++ b/src/cmd/vendor/golang.org/x/sys/unix/zerrors_linux_amd64.go
@@ -71,6 +71,8 @@ const (
 	EXTPROC                          = 0x10000
 	FF1                              = 0x8000
 	FFDLY                            = 0x8000
+	FICLONE                          = 0x40049409
+	FICLONERANGE                     = 0x4020940d
 	FLUSHO                           = 0x1000
 	FP_XSTATE_MAGIC2                 = 0x46505845
 	FS_IOC_ENABLE_VERITY             = 0x40806685
diff --git a/src/cmd/vendor/golang.org/x/sys/unix/zerrors_linux_arm.go b/src/cmd/vendor/golang.org/x/sys/unix/zerrors_linux_arm.go
index 12bcbf88d6..fe7094f276 100644
--- a/src/cmd/vendor/golang.org/x/sys/unix/zerrors_linux_arm.go
+++ b/src/cmd/vendor/golang.org/x/sys/unix/zerrors_linux_arm.go
@@ -71,6 +71,8 @@ const (
 	EXTPROC                          = 0x10000
 	FF1                              = 0x8000
 	FFDLY                            = 0x8000
+	FICLONE                          = 0x40049409
+	FICLONERANGE                     = 0x4020940d
 	FLUSHO                           = 0x1000
 	FS_IOC_ENABLE_VERITY             = 0x40806685
 	FS_IOC_GETFLAGS                  = 0x80046601
diff --git a/src/cmd/vendor/golang.org/x/sys/unix/zerrors_linux_arm64.go b/src/cmd/vendor/golang.org/x/sys/unix/zerrors_linux_arm64.go
index 84f71e99fe..3b6cc58803 100644
--- a/src/cmd/vendor/golang.org/x/sys/unix/zerrors_linux_arm64.go
+++ b/src/cmd/vendor/golang.org/x/sys/unix/zerrors_linux_arm64.go
@@ -73,6 +73,8 @@ const (
 	EXTRA_MAGIC                      = 0x45585401
 	FF1                              = 0x8000
 	FFDLY                            = 0x8000
+	FICLONE                          = 0x40049409
+	FICLONERANGE                     = 0x4020940d
 	FLUSHO                           = 0x1000
 	FPSIMD_MAGIC                     = 0x46508001
 	FS_IOC_ENABLE_VERITY             = 0x40806685
diff --git a/src/cmd/vendor/golang.org/x/sys/unix/zerrors_linux_mips.go b/src/cmd/vendor/golang.org/x/sys/unix/zerrors_linux_mips.go
index eeadea943f..ce3d9ae156 100644
--- a/src/cmd/vendor/golang.org/x/sys/unix/zerrors_linux_mips.go
+++ b/src/cmd/vendor/golang.org/x/sys/unix/zerrors_linux_mips.go
@@ -71,6 +71,8 @@ const (
 	EXTPROC                          = 0x10000
 	FF1                              = 0x8000
 	FFDLY                            = 0x8000
+	FICLONE                          = 0x80049409
+	FICLONERANGE                     = 0x8020940d
 	FLUSHO                           = 0x2000
 	FS_IOC_ENABLE_VERITY             = 0x80806685
 	FS_IOC_GETFLAGS                  = 0x40046601
diff --git a/src/cmd/vendor/golang.org/x/sys/unix/zerrors_linux_mips64.go b/src/cmd/vendor/golang.org/x/sys/unix/zerrors_linux_mips64.go
index 0be6c4ccc0..7a85215ce5 100644
--- a/src/cmd/vendor/golang.org/x/sys/unix/zerrors_linux_mips64.go
+++ b/src/cmd/vendor/golang.org/x/sys/unix/zerrors_linux_mips64.go
@@ -71,6 +71,8 @@ const (
 	EXTPROC                          = 0x10000
 	FF1                              = 0x8000
 	FFDLY                            = 0x8000
+	FICLONE                          = 0x80049409
+	FICLONERANGE                     = 0x8020940d
 	FLUSHO                           = 0x2000
 	FS_IOC_ENABLE_VERITY             = 0x80806685
 	FS_IOC_GETFLAGS                  = 0x40086601
diff --git a/src/cmd/vendor/golang.org/x/sys/unix/zerrors_linux_mips64le.go b/src/cmd/vendor/golang.org/x/sys/unix/zerrors_linux_mips64le.go
index 0880b745c1..07d4cc1bd5 100644
--- a/src/cmd/vendor/golang.org/x/sys/unix/zerrors_linux_mips64le.go
+++ b/src/cmd/vendor/golang.org/x/sys/unix/zerrors_linux_mips64le.go
@@ -71,6 +71,8 @@ const (
 	EXTPROC                          = 0x10000
 	FF1                              = 0x8000
 	FFDLY                            = 0x8000
+	FICLONE                          = 0x80049409
+	FICLONERANGE                     = 0x8020940d
 	FLUSHO                           = 0x2000
 	FS_IOC_ENABLE_VERITY             = 0x80806685
 	FS_IOC_GETFLAGS                  = 0x40086601
diff --git a/src/cmd/vendor/golang.org/x/sys/unix/zerrors_linux_mipsle.go b/src/cmd/vendor/golang.org/x/sys/unix/zerrors_linux_mipsle.go
index c8a66627aa..d4842ba1c2 100644
--- a/src/cmd/vendor/golang.org/x/sys/unix/zerrors_linux_mipsle.go
+++ b/src/cmd/vendor/golang.org/x/sys/unix/zerrors_linux_mipsle.go
@@ -71,6 +71,8 @@ const (
 	EXTPROC                          = 0x10000
 	FF1                              = 0x8000
 	FFDLY                            = 0x8000
+	FICLONE                          = 0x80049409
+	FICLONERANGE                     = 0x8020940d
 	FLUSHO                           = 0x2000
 	FS_IOC_ENABLE_VERITY             = 0x80806685
 	FS_IOC_GETFLAGS                  = 0x40046601
diff --git a/src/cmd/vendor/golang.org/x/sys/unix/zerrors_linux_ppc64.go b/src/cmd/vendor/golang.org/x/sys/unix/zerrors_linux_ppc64.go
index 97aae63f16..941e20dace 100644
--- a/src/cmd/vendor/golang.org/x/sys/unix/zerrors_linux_ppc64.go
+++ b/src/cmd/vendor/golang.org/x/sys/unix/zerrors_linux_ppc64.go
@@ -71,6 +71,8 @@ const (
 	EXTPROC                          = 0x10000000
 	FF1                              = 0x4000
 	FFDLY                            = 0x4000
+	FICLONE                          = 0x80049409
+	FICLONERANGE                     = 0x8020940d
 	FLUSHO                           = 0x800000
 	FS_IOC_ENABLE_VERITY             = 0x80806685
 	FS_IOC_GETFLAGS                  = 0x40086601
diff --git a/src/cmd/vendor/golang.org/x/sys/unix/zerrors_linux_ppc64le.go b/src/cmd/vendor/golang.org/x/sys/unix/zerrors_linux_ppc64le.go
index b0c3b0664f..63d3bc5662 100644
--- a/src/cmd/vendor/golang.org/x/sys/unix/zerrors_linux_ppc64le.go
+++ b/src/cmd/vendor/golang.org/x/sys/unix/zerrors_linux_ppc64le.go
@@ -71,6 +71,8 @@ const (
 	EXTPROC                          = 0x10000000
 	FF1                              = 0x4000
 	FFDLY                            = 0x4000
+	FICLONE                          = 0x80049409
+	FICLONERANGE                     = 0x8020940d
 	FLUSHO                           = 0x800000
 	FS_IOC_ENABLE_VERITY             = 0x80806685
 	FS_IOC_GETFLAGS                  = 0x40086601
diff --git a/src/cmd/vendor/golang.org/x/sys/unix/zerrors_linux_riscv64.go b/src/cmd/vendor/golang.org/x/sys/unix/zerrors_linux_riscv64.go
index 0c05181935..490bee1ab1 100644
--- a/src/cmd/vendor/golang.org/x/sys/unix/zerrors_linux_riscv64.go
+++ b/src/cmd/vendor/golang.org/x/sys/unix/zerrors_linux_riscv64.go
@@ -71,6 +71,8 @@ const (
 	EXTPROC                          = 0x10000
 	FF1                              = 0x8000
 	FFDLY                            = 0x8000
+	FICLONE                          = 0x40049409
+	FICLONERANGE                     = 0x4020940d
 	FLUSHO                           = 0x1000
 	FS_IOC_ENABLE_VERITY             = 0x40806685
 	FS_IOC_GETFLAGS                  = 0x80086601
diff --git a/src/cmd/vendor/golang.org/x/sys/unix/zerrors_linux_s390x.go b/src/cmd/vendor/golang.org/x/sys/unix/zerrors_linux_s390x.go
index 0b96bd462e..467b8218e8 100644
--- a/src/cmd/vendor/golang.org/x/sys/unix/zerrors_linux_s390x.go
+++ b/src/cmd/vendor/golang.org/x/sys/unix/zerrors_linux_s390x.go
@@ -71,6 +71,8 @@ const (
 	EXTPROC                          = 0x10000
 	FF1                              = 0x8000
 	FFDLY                            = 0x8000
+	FICLONE                          = 0x40049409
+	FICLONERANGE                     = 0x4020940d
 	FLUSHO                           = 0x1000
 	FS_IOC_ENABLE_VERITY             = 0x40806685
 	FS_IOC_GETFLAGS                  = 0x80086601
diff --git a/src/cmd/vendor/golang.org/x/sys/unix/zerrors_linux_sparc64.go b/src/cmd/vendor/golang.org/x/sys/unix/zerrors_linux_sparc64.go
index bd5c305779..79fbafbcf6 100644
--- a/src/cmd/vendor/golang.org/x/sys/unix/zerrors_linux_sparc64.go
+++ b/src/cmd/vendor/golang.org/x/sys/unix/zerrors_linux_sparc64.go
@@ -75,6 +75,8 @@ const (
 	EXTPROC                          = 0x10000
 	FF1                              = 0x8000
 	FFDLY                            = 0x8000
+	FICLONE                          = 0x80049409
+	FICLONERANGE                     = 0x8020940d
 	FLUSHO                           = 0x1000
 	FS_IOC_ENABLE_VERITY             = 0x80806685
 	FS_IOC_GETFLAGS                  = 0x40086601
diff --git a/src/cmd/vendor/golang.org/x/sys/unix/zsyscall_illumos_amd64.go b/src/cmd/vendor/golang.org/x/sys/unix/zsyscall_illumos_amd64.go
index 8b329c4589..d3af083f4e 100644
--- a/src/cmd/vendor/golang.org/x/sys/unix/zsyscall_illumos_amd64.go
+++ b/src/cmd/vendor/golang.org/x/sys/unix/zsyscall_illumos_amd64.go
@@ -13,7 +13,7 @@ import (
 //go:cgo_import_dynamic libc_preadv preadv "libc.so"
 //go:cgo_import_dynamic libc_writev writev "libc.so"
 //go:cgo_import_dynamic libc_pwritev pwritev "libc.so"
-//go:cgo_import_dynamic libc_accept4 accept4 "libc.so"
+//go:cgo_import_dynamic libc_accept4 accept4 "libsocket.so"
 //go:cgo_import_dynamic libc_pipe2 pipe2 "libc.so"
 
 //go:linkname procreadv libc_readv
diff --git a/src/cmd/vendor/golang.org/x/sys/unix/ztypes_linux.go b/src/cmd/vendor/golang.org/x/sys/unix/ztypes_linux.go
index 68e4974a9a..a92a5019af 100644
--- a/src/cmd/vendor/golang.org/x/sys/unix/ztypes_linux.go
+++ b/src/cmd/vendor/golang.org/x/sys/unix/ztypes_linux.go
@@ -76,6 +76,21 @@ type Fsid struct {
 	Val [2]int32
 }
 
+type FileCloneRange struct {
+	Src_fd      int64
+	Src_offset  uint64
+	Src_length  uint64
+	Dest_offset uint64
+}
+
+type FileDedupeRange struct {
+	Src_offset uint64
+	Src_length uint64
+	Dest_count uint16
+	Reserved1  uint16
+	Reserved2  uint32
+}
+
 type FscryptPolicy struct {
 	Version                   uint8
 	Contents_encryption_mode  uint8
diff --git a/src/cmd/vendor/modules.txt b/src/cmd/vendor/modules.txt
index 6482962593..21326f7521 100644
--- a/src/cmd/vendor/modules.txt
+++ b/src/cmd/vendor/modules.txt
@@ -40,7 +40,7 @@ golang.org/x/mod/sumdb/dirhash
 golang.org/x/mod/sumdb/note
 golang.org/x/mod/sumdb/tlog
 golang.org/x/mod/zip
-# golang.org/x/sys v0.0.0-20200918174421-af09f7315aff
+# golang.org/x/sys v0.0.0-20200923182605-d9f96fdee20d
 ## explicit
 golang.org/x/sys/internal/unsafeheader
 golang.org/x/sys/unix
diff --git a/src/go.mod b/src/go.mod
index b7de1ff5a4..86e3c8c5b7 100644
--- a/src/go.mod
+++ b/src/go.mod
@@ -4,7 +4,7 @@ go 1.16
 
 require (
 	golang.org/x/crypto v0.0.0-20200820211705-5c72a883971a
-	golang.org/x/net v0.0.0-20200904194848-62affa334b73
-	golang.org/x/sys v0.0.0-20200918174421-af09f7315aff // indirect
+	golang.org/x/net v0.0.0-20200925080053-05aa5d4ee321
+	golang.org/x/sys v0.0.0-20200923182605-d9f96fdee20d // indirect
 	golang.org/x/text v0.3.4-0.20200826142016-a8b467125457 // indirect
 )
diff --git a/src/go.sum b/src/go.sum
index 305c856f64..86a8c4be2a 100644
--- a/src/go.sum
+++ b/src/go.sum
@@ -3,13 +3,13 @@ golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9/go.mod h1:LzIPMQfyMNhhGPh
 golang.org/x/crypto v0.0.0-20200820211705-5c72a883971a h1:vclmkQCjlDX5OydZ9wv8rBCcS0QyQY66Mpf/7BZbInM=
 golang.org/x/crypto v0.0.0-20200820211705-5c72a883971a/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
 golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
-golang.org/x/net v0.0.0-20200904194848-62affa334b73 h1:MXfv8rhZWmFeqX3GNZRsd6vOLoaCHjYEX3qkRo3YBUA=
-golang.org/x/net v0.0.0-20200904194848-62affa334b73/go.mod h1:/O7V0waA8r7cgGh81Ro3o1hOxt32SMVPicZroKQ2sZA=
+golang.org/x/net v0.0.0-20200925080053-05aa5d4ee321 h1:lleNcKRbcaC8MqgLwghIkzZ2JBQAb7QQ9MiwRt1BisA=
+golang.org/x/net v0.0.0-20200925080053-05aa5d4ee321/go.mod h1:/O7V0waA8r7cgGh81Ro3o1hOxt32SMVPicZroKQ2sZA=
 golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20200323222414-85ca7c5b95cd/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.0.0-20200918174421-af09f7315aff h1:1CPUrky56AcgSpxz/KfgzQWzfG09u5YOL8MvPYBlrL8=
-golang.org/x/sys v0.0.0-20200918174421-af09f7315aff/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20200923182605-d9f96fdee20d h1:L/IKR6COd7ubZrs2oTnTi73IhgqJ71c9s80WsQnh0Es=
+golang.org/x/sys v0.0.0-20200923182605-d9f96fdee20d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 golang.org/x/text v0.3.4-0.20200826142016-a8b467125457 h1:K2Vq+FTHFbV5auJiAahir8LO9HUqufuVbQYSNzZopos=
 golang.org/x/text v0.3.4-0.20200826142016-a8b467125457/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
diff --git a/src/vendor/golang.org/x/net/nettest/nettest.go b/src/vendor/golang.org/x/net/nettest/nettest.go
index a402a46bb3..953562f769 100644
--- a/src/vendor/golang.org/x/net/nettest/nettest.go
+++ b/src/vendor/golang.org/x/net/nettest/nettest.go
@@ -97,7 +97,7 @@ func TestableNetwork(network string) bool {
 		switch runtime.GOOS {
 		case "android", "fuchsia", "hurd", "js", "nacl", "plan9", "windows":
 			return false
-		case "darwin":
+		case "darwin", "ios":
 			// iOS doesn't support it.
 			if runtime.GOARCH == "arm" || runtime.GOARCH == "arm64" {
 				return false
@@ -118,7 +118,7 @@ func TestableNetwork(network string) bool {
 			return false
 		case "aix":
 			return unixStrmDgramEnabled()
-		case "darwin":
+		case "darwin", "ios":
 			// iOS does not support unix, unixgram.
 			if runtime.GOARCH == "arm" || runtime.GOARCH == "arm64" {
 				return false
@@ -126,7 +126,7 @@ func TestableNetwork(network string) bool {
 		}
 	case "unixpacket":
 		switch runtime.GOOS {
-		case "aix", "android", "fuchsia", "hurd", "darwin", "js", "nacl", "plan9", "windows":
+		case "aix", "android", "fuchsia", "hurd", "darwin", "ios", "js", "nacl", "plan9", "windows":
 			return false
 		case "netbsd":
 			// It passes on amd64 at least. 386 fails
diff --git a/src/vendor/golang.org/x/net/route/address.go b/src/vendor/golang.org/x/net/route/address.go
index e3125a473b..3c2fe15a97 100644
--- a/src/vendor/golang.org/x/net/route/address.go
+++ b/src/vendor/golang.org/x/net/route/address.go
@@ -221,7 +221,7 @@ func parseKernelInetAddr(af int, b []byte) (int, Addr, error) {
 	//   to make the <length, prefix> tuple to be conformed with
 	//   the routing message boundary
 	l := int(b[0])
-	if runtime.GOOS == "darwin" {
+	if runtime.GOOS == "darwin" || runtime.GOOS == "ios" {
 		// On Darwin, an address in the kernel form is also
 		// used as a message filler.
 		if l == 0 || len(b) > roundup(l) {
diff --git a/src/vendor/golang.org/x/net/route/route_classic.go b/src/vendor/golang.org/x/net/route/route_classic.go
index a7d3864646..b83add668e 100644
--- a/src/vendor/golang.org/x/net/route/route_classic.go
+++ b/src/vendor/golang.org/x/net/route/route_classic.go
@@ -17,7 +17,7 @@ func (m *RouteMessage) marshal() ([]byte, error) {
 		return nil, errUnsupportedMessage
 	}
 	l := w.bodyOff + addrsSpace(m.Addrs)
-	if runtime.GOOS == "darwin" {
+	if runtime.GOOS == "darwin" || runtime.GOOS == "ios" {
 		// Fix stray pointer writes on macOS.
 		// See golang.org/issue/22456.
 		l += 1024
diff --git a/src/vendor/golang.org/x/net/route/syscall_go1_11_darwin.go b/src/vendor/golang.org/x/net/route/syscall_go1_11_darwin.go
deleted file mode 100644
index 7228e443cd..0000000000
--- a/src/vendor/golang.org/x/net/route/syscall_go1_11_darwin.go
+++ /dev/null
@@ -1,28 +0,0 @@
-// Copyright 2018 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build !go1.12
-
-package route
-
-import (
-	"syscall"
-	"unsafe"
-)
-
-var zero uintptr
-
-func sysctl(mib []int32, old *byte, oldlen *uintptr, new *byte, newlen uintptr) error {
-	var p unsafe.Pointer
-	if len(mib) > 0 {
-		p = unsafe.Pointer(&mib[0])
-	} else {
-		p = unsafe.Pointer(&zero)
-	}
-	_, _, errno := syscall.Syscall6(syscall.SYS___SYSCTL, uintptr(p), uintptr(len(mib)), uintptr(unsafe.Pointer(old)), uintptr(unsafe.Pointer(oldlen)), uintptr(unsafe.Pointer(new)), newlen)
-	if errno != 0 {
-		return error(errno)
-	}
-	return nil
-}
diff --git a/src/vendor/golang.org/x/sys/cpu/cpu_arm64.go b/src/vendor/golang.org/x/sys/cpu/cpu_arm64.go
index 2d90024387..951078f2e8 100644
--- a/src/vendor/golang.org/x/sys/cpu/cpu_arm64.go
+++ b/src/vendor/golang.org/x/sys/cpu/cpu_arm64.go
@@ -39,7 +39,7 @@ func initOptions() {
 
 func archInit() {
 	switch runtime.GOOS {
-	case "android", "darwin", "netbsd":
+	case "android", "darwin", "ios", "netbsd":
 		// Android and iOS don't seem to allow reading these registers.
 		//
 		// NetBSD:
diff --git a/src/vendor/modules.txt b/src/vendor/modules.txt
index 46f82829f0..d53b647310 100644
--- a/src/vendor/modules.txt
+++ b/src/vendor/modules.txt
@@ -8,7 +8,7 @@ golang.org/x/crypto/curve25519
 golang.org/x/crypto/hkdf
 golang.org/x/crypto/internal/subtle
 golang.org/x/crypto/poly1305
-# golang.org/x/net v0.0.0-20200904194848-62affa334b73
+# golang.org/x/net v0.0.0-20200925080053-05aa5d4ee321
 ## explicit
 golang.org/x/net/dns/dnsmessage
 golang.org/x/net/http/httpguts
@@ -18,7 +18,7 @@ golang.org/x/net/idna
 golang.org/x/net/lif
 golang.org/x/net/nettest
 golang.org/x/net/route
-# golang.org/x/sys v0.0.0-20200918174421-af09f7315aff
+# golang.org/x/sys v0.0.0-20200923182605-d9f96fdee20d
 ## explicit
 golang.org/x/sys/cpu
 # golang.org/x/text v0.3.4-0.20200826142016-a8b467125457