crypto/rsa/rsa_crpt.c:180: error: MEMORY_LEAK
  memory dynamically allocated by call to `BN_CTX_start()` at line 172, column 5 is not reachable after line 180, column 13.
Showing all 89 steps of the trace


crypto/rsa/rsa_crpt.c:160:1: start of procedure RSA_setup_blinding()
158.   }
159.   
160. > BN_BLINDING *RSA_setup_blinding(RSA *rsa, BN_CTX *in_ctx)
161.   {
162.       BIGNUM *e;

crypto/rsa/rsa_crpt.c:164:5: 
162.       BIGNUM *e;
163.       BN_CTX *ctx;
164. >     BN_BLINDING *ret = NULL;
165.   
166.       if (in_ctx == NULL) {

crypto/rsa/rsa_crpt.c:166:9: Taking true branch
164.       BN_BLINDING *ret = NULL;
165.   
166.       if (in_ctx == NULL) {
               ^
167.           if ((ctx = BN_CTX_new()) == NULL)
168.               return 0;

crypto/rsa/rsa_crpt.c:167:13: 
165.   
166.       if (in_ctx == NULL) {
167. >         if ((ctx = BN_CTX_new()) == NULL)
168.               return 0;
169.       } else

crypto/bn/bn_ctx.c:189:1: start of procedure BN_CTX_new()
  187.   
  188.   
  189. > BN_CTX *BN_CTX_new(void)
  190.   {
  191.       BN_CTX *ret;

crypto/bn/bn_ctx.c:193:9: 
  191.       BN_CTX *ret;
  192.   
  193. >     if ((ret = OPENSSL_zalloc(sizeof(*ret))) == NULL) {
  194.           BNerr(BN_F_BN_CTX_NEW, ERR_R_MALLOC_FAILURE);
  195.           return NULL;

crypto/mem.c:157:1: start of procedure CRYPTO_zalloc()
    155.   }
    156.   
    157. > void *CRYPTO_zalloc(size_t num, const char *file, int line)
    158.   {
    159.       void *ret = CRYPTO_malloc(num, file, line);

crypto/mem.c:159:5: 
    157.   void *CRYPTO_zalloc(size_t num, const char *file, int line)
    158.   {
    159. >     void *ret = CRYPTO_malloc(num, file, line);
    160.   
    161.       if (ret != NULL)

crypto/mem.c:120:1: start of procedure CRYPTO_malloc()
      118.   }
      119.   
      120. > void *CRYPTO_malloc(size_t num, const char *file, int line)
      121.   {
      122.       void *ret = NULL;

crypto/mem.c:122:5: 
      120.   void *CRYPTO_malloc(size_t num, const char *file, int line)
      121.   {
      122. >     void *ret = NULL;
      123.   
      124.       if (num <= 0)

crypto/mem.c:124:9: Taking false branch
      122.       void *ret = NULL;
      123.   
      124.       if (num <= 0)
                     ^
      125.           return NULL;
      126.   

crypto/mem.c:127:5: 
      125.           return NULL;
      126.   
      127. >     allow_customize = 0;
      128.   #ifndef OPENSSL_NO_CRYPTO_MDEBUG
      129.       if (call_malloc_debug) {

crypto/mem.c:137:5: 
      135.       }
      136.   #else
      137. >     (void)file;
      138.       (void)line;
      139.       ret = malloc(num);

crypto/mem.c:138:5: 
      136.   #else
      137.       (void)file;
      138. >     (void)line;
      139.       ret = malloc(num);
      140.   #endif

crypto/mem.c:139:5: 
      137.       (void)file;
      138.       (void)line;
      139. >     ret = malloc(num);
      140.   #endif
      141.   

crypto/mem.c:154:5: 
      152.   #endif
      153.   
      154. >     return ret;
      155.   }
      156.   

crypto/mem.c:155:1: return from a call to CRYPTO_malloc
      153.   
      154.       return ret;
      155. > }
      156.   
      157.   void *CRYPTO_zalloc(size_t num, const char *file, int line)

crypto/mem.c:161:9: Taking true branch
    159.       void *ret = CRYPTO_malloc(num, file, line);
    160.   
    161.       if (ret != NULL)
                   ^
    162.           memset(ret, 0, num);
    163.       return ret;

crypto/mem.c:162:9: 
    160.   
    161.       if (ret != NULL)
    162. >         memset(ret, 0, num);
    163.       return ret;
    164.   }

crypto/mem.c:163:5: 
    161.       if (ret != NULL)
    162.           memset(ret, 0, num);
    163. >     return ret;
    164.   }
    165.   

crypto/mem.c:164:1: return from a call to CRYPTO_zalloc
    162.           memset(ret, 0, num);
    163.       return ret;
    164. > }
    165.   
    166.   void *CRYPTO_realloc(void *str, size_t num, const char *file, int line)

crypto/bn/bn_ctx.c:193:9: Taking false branch
  191.       BN_CTX *ret;
  192.   
  193.       if ((ret = OPENSSL_zalloc(sizeof(*ret))) == NULL) {
                 ^
  194.           BNerr(BN_F_BN_CTX_NEW, ERR_R_MALLOC_FAILURE);
  195.           return NULL;

crypto/bn/bn_ctx.c:198:5: 
  196.       }
  197.       /* Initialise the structure */
  198. >     BN_POOL_init(&ret->pool);
  199.       BN_STACK_init(&ret->stack);
  200.       return ret;

crypto/bn/bn_ctx.c:335:1: start of procedure BN_POOL_init()
    333.   /***********/
    334.   
    335. > static void BN_POOL_init(BN_POOL *p)
    336.   {
    337.       p->head = p->current = p->tail = NULL;

crypto/bn/bn_ctx.c:337:5: 
    335.   static void BN_POOL_init(BN_POOL *p)
    336.   {
    337. >     p->head = p->current = p->tail = NULL;
    338.       p->used = p->size = 0;
    339.   }

crypto/bn/bn_ctx.c:338:5: 
    336.   {
    337.       p->head = p->current = p->tail = NULL;
    338. >     p->used = p->size = 0;
    339.   }
    340.   

crypto/bn/bn_ctx.c:339:1: return from a call to BN_POOL_init
    337.       p->head = p->current = p->tail = NULL;
    338.       p->used = p->size = 0;
    339. > }
    340.   
    341.   static void BN_POOL_finish(BN_POOL *p)

crypto/bn/bn_ctx.c:199:5: 
  197.       /* Initialise the structure */
  198.       BN_POOL_init(&ret->pool);
  199. >     BN_STACK_init(&ret->stack);
  200.       return ret;
  201.   }

crypto/bn/bn_ctx.c:294:1: start of procedure BN_STACK_init()
    292.   /************/
    293.   
    294. > static void BN_STACK_init(BN_STACK *st)
    295.   {
    296.       st->indexes = NULL;

crypto/bn/bn_ctx.c:296:5: 
    294.   static void BN_STACK_init(BN_STACK *st)
    295.   {
    296. >     st->indexes = NULL;
    297.       st->depth = st->size = 0;
    298.   }

crypto/bn/bn_ctx.c:297:5: 
    295.   {
    296.       st->indexes = NULL;
    297. >     st->depth = st->size = 0;
    298.   }
    299.   

crypto/bn/bn_ctx.c:298:1: return from a call to BN_STACK_init
    296.       st->indexes = NULL;
    297.       st->depth = st->size = 0;
    298. > }
    299.   
    300.   static void BN_STACK_finish(BN_STACK *st)

crypto/bn/bn_ctx.c:200:5: 
  198.       BN_POOL_init(&ret->pool);
  199.       BN_STACK_init(&ret->stack);
  200. >     return ret;
  201.   }
  202.   

crypto/bn/bn_ctx.c:201:1: return from a call to BN_CTX_new
  199.       BN_STACK_init(&ret->stack);
  200.       return ret;
  201. > }
  202.   
  203.   BN_CTX *BN_CTX_secure_new(void)

crypto/rsa/rsa_crpt.c:167:13: Taking false branch
165.   
166.       if (in_ctx == NULL) {
167.           if ((ctx = BN_CTX_new()) == NULL)
                   ^
168.               return 0;
169.       } else

crypto/rsa/rsa_crpt.c:172:5: 
170.           ctx = in_ctx;
171.   
172. >     BN_CTX_start(ctx);
173.       e = BN_CTX_get(ctx);
174.       if (e == NULL) {

crypto/bn/bn_ctx.c:236:1: start of procedure BN_CTX_start()
  234.   }
  235.   
  236. > void BN_CTX_start(BN_CTX *ctx)
  237.   {
  238.       CTXDBG_ENTRY("BN_CTX_start", ctx);

crypto/bn/bn_ctx.c:240:9: Taking false branch
  238.       CTXDBG_ENTRY("BN_CTX_start", ctx);
  239.       /* If we're already overflowing ... */
  240.       if (ctx->err_stack || ctx->too_many)
                 ^
  241.           ctx->err_stack++;
  242.       /* (Try to) get a new frame pointer */

crypto/bn/bn_ctx.c:240:27: Taking false branch
  238.       CTXDBG_ENTRY("BN_CTX_start", ctx);
  239.       /* If we're already overflowing ... */
  240.       if (ctx->err_stack || ctx->too_many)
                                   ^
  241.           ctx->err_stack++;
  242.       /* (Try to) get a new frame pointer */

crypto/bn/bn_ctx.c:243:15: 
  241.           ctx->err_stack++;
  242.       /* (Try to) get a new frame pointer */
  243. >     else if (!BN_STACK_push(&ctx->stack, ctx->used)) {
  244.           BNerr(BN_F_BN_CTX_START, BN_R_TOO_MANY_TEMPORARY_VARIABLES);
  245.           ctx->err_stack++;

crypto/bn/bn_ctx.c:307:1: start of procedure BN_STACK_push()
    305.   
    306.   
    307. > static int BN_STACK_push(BN_STACK *st, unsigned int idx)
    308.   {
    309.       if (st->depth == st->size) {

crypto/bn/bn_ctx.c:309:9: Taking true branch
    307.   static int BN_STACK_push(BN_STACK *st, unsigned int idx)
    308.   {
    309.       if (st->depth == st->size) {
                   ^
    310.           /* Need to expand */
    311.           unsigned int newsize =

crypto/bn/bn_ctx.c:312:13: Condition is false
    310.           /* Need to expand */
    311.           unsigned int newsize =
    312.               st->size ? (st->size * 3 / 2) : BN_CTX_START_FRAMES;
                       ^
    313.           unsigned int *newitems = OPENSSL_malloc(sizeof(*newitems) * newsize);
    314.           if (newitems == NULL)

crypto/bn/bn_ctx.c:311:9: 
    309.       if (st->depth == st->size) {
    310.           /* Need to expand */
    311. >         unsigned int newsize =
    312.               st->size ? (st->size * 3 / 2) : BN_CTX_START_FRAMES;
    313.           unsigned int *newitems = OPENSSL_malloc(sizeof(*newitems) * newsize);

crypto/bn/bn_ctx.c:313:9: 
    311.           unsigned int newsize =
    312.               st->size ? (st->size * 3 / 2) : BN_CTX_START_FRAMES;
    313. >         unsigned int *newitems = OPENSSL_malloc(sizeof(*newitems) * newsize);
    314.           if (newitems == NULL)
    315.               return 0;

crypto/mem.c:120:1: start of procedure CRYPTO_malloc()
      118.   }
      119.   
      120. > void *CRYPTO_malloc(size_t num, const char *file, int line)
      121.   {
      122.       void *ret = NULL;

crypto/mem.c:122:5: 
      120.   void *CRYPTO_malloc(size_t num, const char *file, int line)
      121.   {
      122. >     void *ret = NULL;
      123.   
      124.       if (num <= 0)

crypto/mem.c:124:9: Taking false branch
      122.       void *ret = NULL;
      123.   
      124.       if (num <= 0)
                     ^
      125.           return NULL;
      126.   

crypto/mem.c:127:5: 
      125.           return NULL;
      126.   
      127. >     allow_customize = 0;
      128.   #ifndef OPENSSL_NO_CRYPTO_MDEBUG
      129.       if (call_malloc_debug) {

crypto/mem.c:137:5: 
      135.       }
      136.   #else
      137. >     (void)file;
      138.       (void)line;
      139.       ret = malloc(num);

crypto/mem.c:138:5: 
      136.   #else
      137.       (void)file;
      138. >     (void)line;
      139.       ret = malloc(num);
      140.   #endif

crypto/mem.c:139:5: 
      137.       (void)file;
      138.       (void)line;
      139. >     ret = malloc(num);
      140.   #endif
      141.   

crypto/mem.c:154:5: 
      152.   #endif
      153.   
      154. >     return ret;
      155.   }
      156.   

crypto/mem.c:155:1: return from a call to CRYPTO_malloc
      153.   
      154.       return ret;
      155. > }
      156.   
      157.   void *CRYPTO_zalloc(size_t num, const char *file, int line)

crypto/bn/bn_ctx.c:314:13: Taking false branch
    312.               st->size ? (st->size * 3 / 2) : BN_CTX_START_FRAMES;
    313.           unsigned int *newitems = OPENSSL_malloc(sizeof(*newitems) * newsize);
    314.           if (newitems == NULL)
                       ^
    315.               return 0;
    316.           if (st->depth)

crypto/bn/bn_ctx.c:316:13: Taking false branch
    314.           if (newitems == NULL)
    315.               return 0;
    316.           if (st->depth)
                       ^
    317.               memcpy(newitems, st->indexes, sizeof(*newitems) * st->depth);
    318.           OPENSSL_free(st->indexes);

crypto/bn/bn_ctx.c:318:9: 
    316.           if (st->depth)
    317.               memcpy(newitems, st->indexes, sizeof(*newitems) * st->depth);
    318. >         OPENSSL_free(st->indexes);
    319.           st->indexes = newitems;
    320.           st->size = newsize;

crypto/mem.c:234:1: start of procedure CRYPTO_free()
      232.   }
      233.   
      234. > void CRYPTO_free(void *str)
      235.   {
      236.   #ifndef OPENSSL_NO_CRYPTO_MDEBUG

crypto/mem.c:245:5: 
      243.       }
      244.   #else
      245. >     free(str);
      246.   #endif
      247.   }

crypto/mem.c:247:1: return from a call to CRYPTO_free
      245.       free(str);
      246.   #endif
      247. > }
      248.   
      249.   void CRYPTO_clear_free(void *str, size_t num)

crypto/bn/bn_ctx.c:319:9: 
    317.               memcpy(newitems, st->indexes, sizeof(*newitems) * st->depth);
    318.           OPENSSL_free(st->indexes);
    319. >         st->indexes = newitems;
    320.           st->size = newsize;
    321.       }

crypto/bn/bn_ctx.c:320:9: 
    318.           OPENSSL_free(st->indexes);
    319.           st->indexes = newitems;
    320. >         st->size = newsize;
    321.       }
    322.       st->indexes[(st->depth)++] = idx;

crypto/bn/bn_ctx.c:322:5: 
    320.           st->size = newsize;
    321.       }
    322. >     st->indexes[(st->depth)++] = idx;
    323.       return 1;
    324.   }

crypto/bn/bn_ctx.c:323:5: 
    321.       }
    322.       st->indexes[(st->depth)++] = idx;
    323. >     return 1;
    324.   }
    325.   

crypto/bn/bn_ctx.c:324:1: return from a call to BN_STACK_push
    322.       st->indexes[(st->depth)++] = idx;
    323.       return 1;
    324. > }
    325.   
    326.   static unsigned int BN_STACK_pop(BN_STACK *st)

crypto/bn/bn_ctx.c:243:15: Taking false branch
  241.           ctx->err_stack++;
  242.       /* (Try to) get a new frame pointer */
  243.       else if (!BN_STACK_push(&ctx->stack, ctx->used)) {
                       ^
  244.           BNerr(BN_F_BN_CTX_START, BN_R_TOO_MANY_TEMPORARY_VARIABLES);
  245.           ctx->err_stack++;

crypto/bn/bn_ctx.c:240:5: 
  238.       CTXDBG_ENTRY("BN_CTX_start", ctx);
  239.       /* If we're already overflowing ... */
  240. >     if (ctx->err_stack || ctx->too_many)
  241.           ctx->err_stack++;
  242.       /* (Try to) get a new frame pointer */

crypto/bn/bn_ctx.c:248:1: return from a call to BN_CTX_start
  246.       }
  247.       CTXDBG_EXIT(ctx);
  248. > }
  249.   
  250.   void BN_CTX_end(BN_CTX *ctx)

crypto/rsa/rsa_crpt.c:173:5: 
171.   
172.       BN_CTX_start(ctx);
173. >     e = BN_CTX_get(ctx);
174.       if (e == NULL) {
175.           RSAerr(RSA_F_RSA_SETUP_BLINDING, ERR_R_MALLOC_FAILURE);

crypto/bn/bn_ctx.c:267:1: start of procedure BN_CTX_get()
  265.   }
  266.   
  267. > BIGNUM *BN_CTX_get(BN_CTX *ctx)
  268.   {
  269.       BIGNUM *ret;

crypto/bn/bn_ctx.c:272:9: Taking false branch
  270.   
  271.       CTXDBG_ENTRY("BN_CTX_get", ctx);
  272.       if (ctx->err_stack || ctx->too_many)
                 ^
  273.           return NULL;
  274.       if ((ret = BN_POOL_get(&ctx->pool, ctx->flags)) == NULL) {

crypto/bn/bn_ctx.c:272:27: Taking false branch
  270.   
  271.       CTXDBG_ENTRY("BN_CTX_get", ctx);
  272.       if (ctx->err_stack || ctx->too_many)
                                   ^
  273.           return NULL;
  274.       if ((ret = BN_POOL_get(&ctx->pool, ctx->flags)) == NULL) {

crypto/bn/bn_ctx.c:274:9: Taking false branch
  272.       if (ctx->err_stack || ctx->too_many)
  273.           return NULL;
  274.       if ((ret = BN_POOL_get(&ctx->pool, ctx->flags)) == NULL) {
                 ^
  275.           /*
  276.            * Setting too_many prevents repeated "get" attempts from cluttering

crypto/bn/bn_ctx.c:284:5: 
  282.       }
  283.       /* OK, make sure the returned bignum is "zero" */
  284. >     BN_zero(ret);
  285.       ctx->used++;
  286.       CTXDBG_RET(ctx, ret);

crypto/bn/bn_lib.c:530:1: start of procedure BN_set_word()
    528.   }
    529.   
    530. > int BN_set_word(BIGNUM *a, BN_ULONG w)
    531.   {
    532.       bn_check_top(a);

crypto/bn/bn_lib.c:533:9: Condition is true
    531.   {
    532.       bn_check_top(a);
    533.       if (bn_expand(a, (int)sizeof(BN_ULONG) * 8) == NULL)
                   ^
    534.           return (0);
    535.       a->neg = 0;

crypto/bn/bn_lib.c:533:9: Taking false branch
    531.   {
    532.       bn_check_top(a);
    533.       if (bn_expand(a, (int)sizeof(BN_ULONG) * 8) == NULL)
                   ^
    534.           return (0);
    535.       a->neg = 0;

crypto/bn/bn_lib.c:535:5: 
    533.       if (bn_expand(a, (int)sizeof(BN_ULONG) * 8) == NULL)
    534.           return (0);
    535. >     a->neg = 0;
    536.       a->d[0] = w;
    537.       a->top = (w ? 1 : 0);

crypto/bn/bn_lib.c:536:5: 
    534.           return (0);
    535.       a->neg = 0;
    536. >     a->d[0] = w;
    537.       a->top = (w ? 1 : 0);
    538.       bn_check_top(a);

crypto/bn/bn_lib.c:537:15: Condition is false
    535.       a->neg = 0;
    536.       a->d[0] = w;
    537.       a->top = (w ? 1 : 0);
                         ^
    538.       bn_check_top(a);
    539.       return (1);

crypto/bn/bn_lib.c:537:5: 
    535.       a->neg = 0;
    536.       a->d[0] = w;
    537. >     a->top = (w ? 1 : 0);
    538.       bn_check_top(a);
    539.       return (1);

crypto/bn/bn_lib.c:539:5: 
    537.       a->top = (w ? 1 : 0);
    538.       bn_check_top(a);
    539. >     return (1);
    540.   }
    541.   

crypto/bn/bn_lib.c:540:1: return from a call to BN_set_word
    538.       bn_check_top(a);
    539.       return (1);
    540. > }
    541.   
    542.   BIGNUM *BN_bin2bn(const unsigned char *s, int len, BIGNUM *ret)

crypto/bn/bn_ctx.c:285:5: 
  283.       /* OK, make sure the returned bignum is "zero" */
  284.       BN_zero(ret);
  285. >     ctx->used++;
  286.       CTXDBG_RET(ctx, ret);
  287.       return ret;

crypto/bn/bn_ctx.c:287:5: 
  285.       ctx->used++;
  286.       CTXDBG_RET(ctx, ret);
  287. >     return ret;
  288.   }
  289.   

crypto/bn/bn_ctx.c:288:1: return from a call to BN_CTX_get
  286.       CTXDBG_RET(ctx, ret);
  287.       return ret;
  288. > }
  289.   
  290.   /************/

crypto/rsa/rsa_crpt.c:174:9: Taking false branch
172.       BN_CTX_start(ctx);
173.       e = BN_CTX_get(ctx);
174.       if (e == NULL) {
               ^
175.           RSAerr(RSA_F_RSA_SETUP_BLINDING, ERR_R_MALLOC_FAILURE);
176.           goto err;

crypto/rsa/rsa_crpt.c:179:9: Taking true branch
177.       }
178.   
179.       if (rsa->e == NULL) {
               ^
180.           e = rsa_get_public_exp(rsa->d, rsa->p, rsa->q, ctx);
181.           if (e == NULL) {

crypto/rsa/rsa_crpt.c:180:9: Skipping rsa_get_public_exp(): empty list of specs
178.   
179.       if (rsa->e == NULL) {
180.           e = rsa_get_public_exp(rsa->d, rsa->p, rsa->q, ctx);
               ^
181.           if (e == NULL) {
182.               RSAerr(RSA_F_RSA_SETUP_BLINDING, RSA_R_NO_PUBLIC_EXPONENT);

BN_BLINDING *RSA_setup_blinding(RSA *rsa, BN_CTX *in_ctx)
{
    BIGNUM *e;
    BN_CTX *ctx;
    BN_BLINDING *ret = NULL;
    if (in_ctx == NULL) {
        if ((ctx = BN_CTX_new()) == NULL)
            return 0;
    } else
        ctx = in_ctx;
    BN_CTX_start(ctx);
    e = BN_CTX_get(ctx);
    if (e == NULL) {
        RSAerr(RSA_F_RSA_SETUP_BLINDING, ERR_R_MALLOC_FAILURE);
        goto err;
    }
    if (rsa->e == NULL) {
        e = rsa_get_public_exp(rsa->d, rsa->p, rsa->q, ctx);
        if (e == NULL) {
            RSAerr(RSA_F_RSA_SETUP_BLINDING, RSA_R_NO_PUBLIC_EXPONENT);
            goto err;
        }
    } else
        e = rsa->e;
    if ((RAND_status() == 0) && rsa->d != NULL
        && bn_get_words(rsa->d) != NULL) {
        RAND_add(bn_get_words(rsa->d), bn_get_dmax(rsa->d) * sizeof(BN_ULONG),
                 0.0);
    }
    {
        BIGNUM *local_n = NULL, *n;
        if (!(rsa->flags & RSA_FLAG_NO_CONSTTIME)) {
            local_n = n = BN_new();
            if (local_n == NULL) {
                RSAerr(RSA_F_RSA_SETUP_BLINDING, ERR_R_MALLOC_FAILURE);
                goto err;
            }
            BN_with_flags(n, rsa->n, BN_FLG_CONSTTIME);
        } else {
            n = rsa->n;
        }
        ret = BN_BLINDING_create_param(NULL, e, n, ctx, rsa->meth->bn_mod_exp,
                                       rsa->_method_mod_n);
        BN_free(local_n);
    }
    if (ret == NULL) {
        RSAerr(RSA_F_RSA_SETUP_BLINDING, ERR_R_BN_LIB);
        goto err;
    }
    CRYPTO_THREADID_current(BN_BLINDING_thread_id(ret));
 err:
    BN_CTX_end(ctx);
    if (ctx != in_ctx)
        BN_CTX_free(ctx);
    if (e != rsa->e)
        BN_free(e);
    return ret;
}
['BN_BLINDING *RSA_setup_blinding(RSA *rsa, BN_CTX *in_ctx)\n{\n    BIGNUM *e;\n    BN_CTX *ctx;\n    BN_BLINDING *ret = NULL;\n    if (in_ctx == NULL) {\n        if ((ctx = BN_CTX_new()) == NULL)\n            return 0;\n    } else\n        ctx = in_ctx;\n    BN_CTX_start(ctx);\n    e = BN_CTX_get(ctx);\n    if (e == NULL) {\n        RSAerr(RSA_F_RSA_SETUP_BLINDING, ERR_R_MALLOC_FAILURE);\n        goto err;\n    }\n    if (rsa->e == NULL) {\n        e = rsa_get_public_exp(rsa->d, rsa->p, rsa->q, ctx);\n        if (e == NULL) {\n            RSAerr(RSA_F_RSA_SETUP_BLINDING, RSA_R_NO_PUBLIC_EXPONENT);\n            goto err;\n        }\n    } else\n        e = rsa->e;\n    if ((RAND_status() == 0) && rsa->d != NULL\n        && bn_get_words(rsa->d) != NULL) {\n        RAND_add(bn_get_words(rsa->d), bn_get_dmax(rsa->d) * sizeof(BN_ULONG),\n                 0.0);\n    }\n    {\n        BIGNUM *local_n = NULL, *n;\n        if (!(rsa->flags & RSA_FLAG_NO_CONSTTIME)) {\n            local_n = n = BN_new();\n            if (local_n == NULL) {\n                RSAerr(RSA_F_RSA_SETUP_BLINDING, ERR_R_MALLOC_FAILURE);\n                goto err;\n            }\n            BN_with_flags(n, rsa->n, BN_FLG_CONSTTIME);\n        } else {\n            n = rsa->n;\n        }\n        ret = BN_BLINDING_create_param(NULL, e, n, ctx, rsa->meth->bn_mod_exp,\n                                       rsa->_method_mod_n);\n        BN_free(local_n);\n    }\n    if (ret == NULL) {\n        RSAerr(RSA_F_RSA_SETUP_BLINDING, ERR_R_BN_LIB);\n        goto err;\n    }\n    CRYPTO_THREADID_current(BN_BLINDING_thread_id(ret));\n err:\n    BN_CTX_end(ctx);\n    if (ctx != in_ctx)\n        BN_CTX_free(ctx);\n    if (e != rsa->e)\n        BN_free(e);\n    return ret;\n}', 'BN_CTX *BN_CTX_new(void)\n{\n    BN_CTX *ret;\n    if ((ret = OPENSSL_zalloc(sizeof(*ret))) == NULL) {\n        BNerr(BN_F_BN_CTX_NEW, ERR_R_MALLOC_FAILURE);\n        return NULL;\n    }\n    BN_POOL_init(&ret->pool);\n    BN_STACK_init(&ret->stack);\n    return ret;\n}', 'void *CRYPTO_zalloc(size_t num, const char *file, int line)\n{\n    void *ret = CRYPTO_malloc(num, file, line);\n    if (ret != NULL)\n        memset(ret, 0, num);\n    return ret;\n}', 'void *CRYPTO_malloc(size_t num, const char *file, int line)\n{\n    void *ret = NULL;\n    if (num <= 0)\n        return NULL;\n    allow_customize = 0;\n#ifndef OPENSSL_NO_CRYPTO_MDEBUG\n    if (call_malloc_debug) {\n        CRYPTO_mem_debug_malloc(NULL, num, 0, file, line);\n        ret = malloc(num);\n        CRYPTO_mem_debug_malloc(ret, num, 1, file, line);\n    } else {\n        ret = malloc(num);\n    }\n#else\n    (void)file;\n    (void)line;\n    ret = malloc(num);\n#endif\n#ifndef OPENSSL_CPUID_OBJ\n    if (ret && (num > 2048)) {\n        extern unsigned char cleanse_ctr;\n        ((unsigned char *)ret)[0] = cleanse_ctr;\n    }\n#endif\n    return ret;\n}', 'static void BN_POOL_init(BN_POOL *p)\n{\n    p->head = p->current = p->tail = NULL;\n    p->used = p->size = 0;\n}', 'static void BN_STACK_init(BN_STACK *st)\n{\n    st->indexes = NULL;\n    st->depth = st->size = 0;\n}', 'void BN_CTX_start(BN_CTX *ctx)\n{\n    CTXDBG_ENTRY("BN_CTX_start", ctx);\n    if (ctx->err_stack || ctx->too_many)\n        ctx->err_stack++;\n    else if (!BN_STACK_push(&ctx->stack, ctx->used)) {\n        BNerr(BN_F_BN_CTX_START, BN_R_TOO_MANY_TEMPORARY_VARIABLES);\n        ctx->err_stack++;\n    }\n    CTXDBG_EXIT(ctx);\n}', 'static int BN_STACK_push(BN_STACK *st, unsigned int idx)\n{\n    if (st->depth == st->size) {\n        unsigned int newsize =\n            st->size ? (st->size * 3 / 2) : BN_CTX_START_FRAMES;\n        unsigned int *newitems = OPENSSL_malloc(sizeof(*newitems) * newsize);\n        if (newitems == NULL)\n            return 0;\n        if (st->depth)\n            memcpy(newitems, st->indexes, sizeof(*newitems) * st->depth);\n        OPENSSL_free(st->indexes);\n        st->indexes = newitems;\n        st->size = newsize;\n    }\n    st->indexes[(st->depth)++] = idx;\n    return 1;\n}', 'void CRYPTO_free(void *str)\n{\n#ifndef OPENSSL_NO_CRYPTO_MDEBUG\n    if (call_malloc_debug) {\n        CRYPTO_mem_debug_free(str, 0);\n        free(str);\n        CRYPTO_mem_debug_free(str, 1);\n    } else {\n        free(str);\n    }\n#else\n    free(str);\n#endif\n}', 'BIGNUM *BN_CTX_get(BN_CTX *ctx)\n{\n    BIGNUM *ret;\n    CTXDBG_ENTRY("BN_CTX_get", ctx);\n    if (ctx->err_stack || ctx->too_many)\n        return NULL;\n    if ((ret = BN_POOL_get(&ctx->pool, ctx->flags)) == NULL) {\n        ctx->too_many = 1;\n        BNerr(BN_F_BN_CTX_GET, BN_R_TOO_MANY_TEMPORARY_VARIABLES);\n        return NULL;\n    }\n    BN_zero(ret);\n    ctx->used++;\n    CTXDBG_RET(ctx, ret);\n    return ret;\n}', 'int BN_set_word(BIGNUM *a, BN_ULONG w)\n{\n    bn_check_top(a);\n    if (bn_expand(a, (int)sizeof(BN_ULONG) * 8) == NULL)\n        return (0);\n    a->neg = 0;\n    a->d[0] = w;\n    a->top = (w ? 1 : 0);\n    bn_check_top(a);\n    return (1);\n}']