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      1 /**
      2  * Copyright (C) 2018 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 #define _GNU_SOURCE
     17 #include <sys/types.h>
     18 #include <sys/wait.h>
     19 #include <openssl/bio.h>
     20 #include <openssl/x509.h>
     21 #include <openssl/err.h>
     22 
     23 unsigned char bad_bio[] = {
     24   0x30, 0x84, 0x7f, 0xff, 0xff, 0xff, 0xff, 0xff,
     25   0xff, 0xff
     26 };
     27 
     28 
     29 X509 *cert;
     30 
     31 int main(void){
     32   unsigned long err = 0;
     33   ERR_load_crypto_strings();
     34   BIO *in = BIO_new(BIO_s_mem());
     35   if(in != NULL){
     36     BIO_write(in, bad_bio, sizeof(bad_bio));
     37     cert = d2i_X509_bio(in, NULL); // x509 should be present on all Android systems
     38     BIO_free(in);
     39     if(cert != NULL){
     40       X509_free(cert);
     41     }
     42     if((err = ERR_get_error())
     43         == 0x07000041) // malloc error
     44       return 113;
     45   }
     46 }
     47