mirror of
https://github.com/tailscale/tailscale.git
synced 2024-12-05 07:55:36 +00:00
4dbdb19c26
The definition of winHTTPProxyInfo was using the wrong type (uint16 vs uint32) for its first field. I fixed that type. Furthermore, any UTF16 strings returned in that structure must be explicitly freed. I added code to do this. Finally, since this is the second time I've seen type safety errors in this code, I switched the native API calls over to use wrappers generated by mkwinsyscall. I know that would not have helped prevent the previous two problems, but every bit helps IMHO. Updates https://github.com/tailscale/tailscale/issues/4811 Signed-off-by: Aaron Klotz <aaron@tailscale.com>
82 lines
2.3 KiB
Go
82 lines
2.3 KiB
Go
// Code generated by 'go generate'; DO NOT EDIT.
|
|
|
|
package tshttpproxy
|
|
|
|
import (
|
|
"syscall"
|
|
"unsafe"
|
|
|
|
"golang.org/x/sys/windows"
|
|
)
|
|
|
|
var _ unsafe.Pointer
|
|
|
|
// Do the interface allocations only once for common
|
|
// Errno values.
|
|
const (
|
|
errnoERROR_IO_PENDING = 997
|
|
)
|
|
|
|
var (
|
|
errERROR_IO_PENDING error = syscall.Errno(errnoERROR_IO_PENDING)
|
|
errERROR_EINVAL error = syscall.EINVAL
|
|
)
|
|
|
|
// errnoErr returns common boxed Errno values, to prevent
|
|
// allocations at runtime.
|
|
func errnoErr(e syscall.Errno) error {
|
|
switch e {
|
|
case 0:
|
|
return errERROR_EINVAL
|
|
case errnoERROR_IO_PENDING:
|
|
return errERROR_IO_PENDING
|
|
}
|
|
// TODO: add more here, after collecting data on the common
|
|
// error values see on Windows. (perhaps when running
|
|
// all.bat?)
|
|
return e
|
|
}
|
|
|
|
var (
|
|
modkernel32 = windows.NewLazySystemDLL("kernel32.dll")
|
|
modwinhttp = windows.NewLazySystemDLL("winhttp.dll")
|
|
|
|
procGlobalFree = modkernel32.NewProc("GlobalFree")
|
|
procWinHttpCloseHandle = modwinhttp.NewProc("WinHttpCloseHandle")
|
|
procWinHttpGetProxyForUrl = modwinhttp.NewProc("WinHttpGetProxyForUrl")
|
|
procWinHttpOpen = modwinhttp.NewProc("WinHttpOpen")
|
|
)
|
|
|
|
func globalFree(hglobal winHGlobal) (err error) {
|
|
r1, _, e1 := syscall.Syscall(procGlobalFree.Addr(), 1, uintptr(hglobal), 0, 0)
|
|
if r1 == 0 {
|
|
err = errnoErr(e1)
|
|
}
|
|
return
|
|
}
|
|
|
|
func winHTTPCloseHandle(whi winHTTPInternet) (err error) {
|
|
r1, _, e1 := syscall.Syscall(procWinHttpCloseHandle.Addr(), 1, uintptr(whi), 0, 0)
|
|
if r1 == 0 {
|
|
err = errnoErr(e1)
|
|
}
|
|
return
|
|
}
|
|
|
|
func winHTTPGetProxyForURL(whi winHTTPInternet, url *uint16, options *winHTTPAutoProxyOptions, proxyInfo *winHTTPProxyInfo) (err error) {
|
|
r1, _, e1 := syscall.Syscall6(procWinHttpGetProxyForUrl.Addr(), 4, uintptr(whi), uintptr(unsafe.Pointer(url)), uintptr(unsafe.Pointer(options)), uintptr(unsafe.Pointer(proxyInfo)), 0, 0)
|
|
if r1 == 0 {
|
|
err = errnoErr(e1)
|
|
}
|
|
return
|
|
}
|
|
|
|
func winHTTPOpen(agent *uint16, accessType uint32, proxy *uint16, proxyBypass *uint16, flags uint32) (whi winHTTPInternet, err error) {
|
|
r0, _, e1 := syscall.Syscall6(procWinHttpOpen.Addr(), 5, uintptr(unsafe.Pointer(agent)), uintptr(accessType), uintptr(unsafe.Pointer(proxy)), uintptr(unsafe.Pointer(proxyBypass)), uintptr(flags), 0)
|
|
whi = winHTTPInternet(r0)
|
|
if whi == 0 {
|
|
err = errnoErr(e1)
|
|
}
|
|
return
|
|
}
|