gcc/testsuite/gcc.c-torture/compile/pr53886.c

   1 /* PR target/53886  */
   2 typedef struct asn1_string_st ASN1_BIT_STRING;
   3 typedef struct bignum_st BIGNUM;
   4 typedef struct ec_group_st EC_GROUP;
   5 typedef struct ec_key_st EC_KEY;
   6
   7 struct ec_key_st
   8 {
   9   EC_GROUP *group;
  10   BIGNUM *priv_key;
  11   unsigned int enc_flag;
  12 }
  13 X9_62_PENTANOMIAL;
  14 typedef struct ec_privatekey_st
  15 {
  16   ASN1_BIT_STRING *publicKey;
  17 }
  18 EC_PRIVATEKEY;
  19
  20 extern EC_PRIVATEKEY* EC_PRIVATEKEY_new (void);
  21 extern void EC_PRIVATEKEY_free (EC_PRIVATEKEY*);
  22 extern unsigned char* CRYPTO_realloc (char*,int,const char*,int);
  23
  24 int
  25 i2d_ECPrivateKey (EC_KEY * a, unsigned char **out)
  26 {
  27   int ret = 0, ok = 0;
  28   unsigned char *buffer = 0;
  29   unsigned buf_len = 0, tmp_len;
  30   EC_PRIVATEKEY *priv_key = 0;
  31   if (a == 0 || a->group == 0 || a->priv_key == 0)
  32     {
  33       ERR_put_error (16, (192), ((3 | 64)),
  34                      "",
  35                      1234);
  36       goto err;
  37     }
  38   if ((priv_key = EC_PRIVATEKEY_new ()) == 0)
  39     {
  40       ERR_put_error (16, (192), ((1 | 64)),
  41                      "",
  42                      1241);
  43       goto err;
  44     }
  45   if (!(a->enc_flag & 0x002))
  46     {
  47       if (priv_key->publicKey == 0)
  48         {
  49           goto err;
  50         }
  51       if (tmp_len > buf_len)
  52         {
  53           unsigned char *tmp_buffer =
  54             CRYPTO_realloc ((char *) buffer, (int) tmp_len, "", 1293);
  55           buffer = tmp_buffer;
  56         }
  57     }
  58   if ((ret = i2d_EC_PRIVATEKEY (priv_key, out)) == 0)
  59     {
  60     }
  61   ok = 1;
  62 err:
  63   if (buffer)
  64     CRYPTO_free (buffer);
  65   if (priv_key)
  66     EC_PRIVATEKEY_free (priv_key);
  67   return (ok ? ret : 0);
  68 }