func Crypt(key, salt string) string {
ckey := C.CString(key)
csalt := C.CString(salt)
crypt_m.Lock()
out := C.GoString(C.crypt(ckey, csalt))
crypt_m.Unlock()
C.free(unsafe.Pointer(ckey))
C.free(unsafe.Pointer(csalt))
return out
}
func Crypt(key, slash string) (digest string, err error) {
if len(slash) != 2 {
err = errors.New("Slash invalid.")
return
}
k, s := C.CString(key), C.CString(slash)
defer func() {
C.free(unsafe.Pointer(k))
C.free(unsafe.Pointer(s))
}()
d, err := C.crypt(k, s)
if err != nil {
return
}
digest = C.GoString(d)
return
}
func AuthPasswd(name string, passwd string) bool {
nameC := C.CString(name)
defer C.free(unsafe.Pointer(nameC))
passwdC := C.CString(passwd)
defer C.free(unsafe.Pointer(passwdC))
pwd := C.getspnam(nameC)
if pwd == nil {
return false
}
crypted := C.crypt(passwdC, pwd.sp_pwdp)
rv := C.strcmp(crypted, pwd.sp_pwdp)
if rv != 0 {
return false
}
return true
}
func generateSha512(password string) string {
shadowRecord := fmt.Sprintf("$6$%s", generateShaSalt())
return C.GoString(C.crypt(C.CString(password), C.CString(shadowRecord)))
}