go-fips/fips_on.go

35 lines
629 B
Go

// +build fips
package fips
/*
#include <stdlib.h>
#include <openssl/crypto.h>
#include <openssl/err.h>
#cgo LDFLAGS: -lcrypto
*/
import "C"
import "errors"
func mode() (ONOFF, error) {
return ONOFF(C.FIPS_mode()), nil
}
func modeSet(mode ONOFF) (ONOFF, error) {
o := ONOFF(C.FIPS_mode_set(C.int(mode)))
if o != mode {
return o, errors.New(lastError())
}
return o, nil
}
func lastError() string {
buf := C.malloc(1024)
e := C.ERR_get_error() // a C.ulong
C.ERR_load_crypto_strings()
defer C.ERR_free_strings()
C.ERR_error_string_n(e, (*C.char)(buf), 1024)
defer C.free(buf)
return C.GoString((*C.char)(buf))
}