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|
//go:build windows
package tls
import (
"crypto/x509"
"fmt"
"sync"
"unsafe"
"golang.org/x/sys/windows"
)
var (
once sync.Once
systemRoots *x509.CertPool
)
func systemCertPool() (*x509.CertPool, error) {
once.Do(initSystemRoots)
if systemRoots == nil {
return nil, fmt.Errorf("Bad system root pool")
}
return systemRoots, nil
}
func initSystemRoots() {
const CRYPT_E_NOT_FOUND = 0x80092004
store, err := windows.CertOpenSystemStore(0, windows.StringToUTF16Ptr("ROOT"))
if err != nil {
systemRoots = nil
return
}
defer windows.CertCloseStore(store, 0)
roots := x509.NewCertPool()
var cert *windows.CertContext
for {
cert, err = windows.CertEnumCertificatesInStore(store, cert)
if err != nil {
errno, ok := err.(windows.Errno)
if ok {
if errno == CRYPT_E_NOT_FOUND {
break
}
}
systemRoots = nil
return
}
if cert == nil {
break
}
// Copy the buf, since ParseCertificate does not create its own copy.
buf := (*[1 << 20]byte)(unsafe.Pointer(cert.EncodedCert))[:]
buf2 := make([]byte, cert.Length)
copy(buf2, buf)
c, err := x509.ParseCertificate(buf2)
if err == nil {
roots.AddCert(c)
}
}
systemRoots = roots
}
|
