switch to use gliderlabs/ssh for builtin server (#7250)

resolves git conflicts from #3896 (credit to @belak, in case github doesn't keep original author during squash)

Co-Authored-By: Matti Ranta <techknowlogick@gitea.io>

vendor/golang.org/x/sys/unix/syscall_linux.go

@@ -13,7 +13,6 @@ package unix
 
 import (
 	"encoding/binary"
-	"net"
 	"runtime"
 	"syscall"
 	"unsafe"
@@ -765,7 +764,7 @@ const px_proto_oe = 0
 
 type SockaddrPPPoE struct {
 	SID    uint16
-	Remote net.HardwareAddr
+	Remote []byte
 	Dev    string
 	raw    RawSockaddrPPPoX
 }
@@ -916,7 +915,7 @@ func anyToSockaddr(fd int, rsa *RawSockaddrAny) (Sockaddr, error) {
 		}
 		sa := &SockaddrPPPoE{
 			SID:    binary.BigEndian.Uint16(pp[6:8]),
-			Remote: net.HardwareAddr(pp[8:14]),
+			Remote: pp[8:14],
 		}
 		for i := 14; i < 14+IFNAMSIZ; i++ {
 			if pp[i] == 0 {

vendor/golang.org/x/sys/unix/types_netbsd.go

@@ -254,6 +254,7 @@ type Ptmget C.struct_ptmget
 
 const (
 	AT_FDCWD            = C.AT_FDCWD
+	AT_SYMLINK_FOLLOW   = C.AT_SYMLINK_FOLLOW
 	AT_SYMLINK_NOFOLLOW = C.AT_SYMLINK_NOFOLLOW
 )
 

vendor/golang.org/x/sys/unix/types_openbsd.go

@@ -241,6 +241,7 @@ type Winsize C.struct_winsize
 
 const (
 	AT_FDCWD            = C.AT_FDCWD
+	AT_SYMLINK_FOLLOW   = C.AT_SYMLINK_FOLLOW
 	AT_SYMLINK_NOFOLLOW = C.AT_SYMLINK_NOFOLLOW
 )
 

vendor/golang.org/x/sys/unix/ztypes_netbsd_386.go

@@ -411,6 +411,7 @@ type Ptmget struct {
 
 const (
 	AT_FDCWD            = -0x64
+	AT_SYMLINK_FOLLOW   = 0x400
 	AT_SYMLINK_NOFOLLOW = 0x200
 )
 

vendor/golang.org/x/sys/unix/ztypes_netbsd_amd64.go

@@ -418,6 +418,7 @@ type Ptmget struct {
 
 const (
 	AT_FDCWD            = -0x64
+	AT_SYMLINK_FOLLOW   = 0x400
 	AT_SYMLINK_NOFOLLOW = 0x200
 )
 

vendor/golang.org/x/sys/unix/ztypes_netbsd_arm.go

@@ -416,6 +416,7 @@ type Ptmget struct {
 
 const (
 	AT_FDCWD            = -0x64
+	AT_SYMLINK_FOLLOW   = 0x400
 	AT_SYMLINK_NOFOLLOW = 0x200
 )
 

vendor/golang.org/x/sys/unix/ztypes_netbsd_arm64.go

@@ -418,6 +418,7 @@ type Ptmget struct {
 
 const (
 	AT_FDCWD            = -0x64
+	AT_SYMLINK_FOLLOW   = 0x400
 	AT_SYMLINK_NOFOLLOW = 0x200
 )
 

vendor/golang.org/x/sys/unix/ztypes_openbsd_386.go

@@ -436,6 +436,7 @@ type Winsize struct {
 
 const (
 	AT_FDCWD            = -0x64
+	AT_SYMLINK_FOLLOW   = 0x4
 	AT_SYMLINK_NOFOLLOW = 0x2
 )
 

vendor/golang.org/x/sys/unix/ztypes_openbsd_amd64.go

@@ -436,6 +436,7 @@ type Winsize struct {
 
 const (
 	AT_FDCWD            = -0x64
+	AT_SYMLINK_FOLLOW   = 0x4
 	AT_SYMLINK_NOFOLLOW = 0x2
 )
 

vendor/golang.org/x/sys/unix/ztypes_openbsd_arm.go

@@ -437,6 +437,7 @@ type Winsize struct {
 
 const (
 	AT_FDCWD            = -0x64
+	AT_SYMLINK_FOLLOW   = 0x4
 	AT_SYMLINK_NOFOLLOW = 0x2
 )
 

vendor/golang.org/x/sys/unix/ztypes_openbsd_arm64.go

@@ -430,6 +430,7 @@ type Winsize struct {
 
 const (
 	AT_FDCWD            = -0x64
+	AT_SYMLINK_FOLLOW   = 0x4
 	AT_SYMLINK_NOFOLLOW = 0x2
 )
 

vendor/golang.org/x/sys/windows/syscall_windows.go

@@ -294,7 +294,7 @@ func NewCallbackCDecl(fn interface{}) uintptr {
 //sys	clsidFromString(lpsz *uint16, pclsid *GUID) (ret error) = ole32.CLSIDFromString
 //sys	stringFromGUID2(rguid *GUID, lpsz *uint16, cchMax int32) (chars int32) = ole32.StringFromGUID2
 //sys	coCreateGuid(pguid *GUID) (ret error) = ole32.CoCreateGuid
-//sys	coTaskMemFree(address unsafe.Pointer) = ole32.CoTaskMemFree
+//sys	CoTaskMemFree(address unsafe.Pointer) = ole32.CoTaskMemFree
 //sys	rtlGetVersion(info *OsVersionInfoEx) (ret error) = ntdll.RtlGetVersion
 
 // syscall interface implementation for other packages
@@ -1302,7 +1302,7 @@ func (t Token) KnownFolderPath(folderID *KNOWNFOLDERID, flags uint32) (string, e
 	if err != nil {
 		return "", err
 	}
-	defer coTaskMemFree(unsafe.Pointer(p))
+	defer CoTaskMemFree(unsafe.Pointer(p))
 	return UTF16ToString((*[(1 << 30) - 1]uint16)(unsafe.Pointer(p))[:]), nil
 }
 

vendor/golang.org/x/sys/windows/zsyscall_windows.go

@@ -2517,7 +2517,7 @@ func coCreateGuid(pguid *GUID) (ret error) {
 	return
 }
 
-func coTaskMemFree(address unsafe.Pointer) {
+func CoTaskMemFree(address unsafe.Pointer) {
 	syscall.Syscall(procCoTaskMemFree.Addr(), 1, uintptr(address), 0, 0)
 	return
 }