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Use safer sizeof variant in malloc

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For a local variable:
        TYPE *p;
Allocations like this are "risky":
        p = OPENSSL_malloc(sizeof(TYPE));
if the type of p changes, and the malloc call isn't updated, you
could get memory corruption.  Instead do this:
        p = OPENSSL_malloc(sizeof(*p));
Also fixed a few memset() calls that I noticed while doing this.

Reviewed-by: Richard Levitte <levitte@openssl.org>
This commit is contained in:
Rich Salz
2015-05-01 23:10:31 -04:00
committed by Rich Salz
parent 8920a7cd04
commit b4faea50c3
142 changed files with 278 additions and 283 deletions
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10
crypto/ec/ec_lib.c
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@@ -85,7 +85,7 @@ EC_GROUP *EC_GROUP_new(const EC_METHOD *meth)
return NULL;
}
ret = OPENSSL_malloc(sizeof *ret);
ret = OPENSSL_malloc(sizeof(*ret));
if (ret == NULL) {
ECerr(EC_F_EC_GROUP_NEW, ERR_R_MALLOC_FAILURE);
return NULL;
@@ -158,7 +158,7 @@ void EC_GROUP_clear_free(EC_GROUP *group)
BN_clear_free(group->order);
BN_clear_free(group->cofactor);
OPENSSL_clear_free(group->seed, group->seed_len);
OPENSSL_clear_free(group, sizeof *group);
OPENSSL_clear_free(group, sizeof(*group));
}
int EC_GROUP_copy(EC_GROUP *dest, const EC_GROUP *src)
@@ -555,7 +555,7 @@ int EC_EX_DATA_set_data(EC_EXTRA_DATA **ex_data, void *data,
/* no explicit entry needed */
return 1;
d = OPENSSL_malloc(sizeof *d);
d = OPENSSL_malloc(sizeof(*d));
if (d == NULL)
return 0;
@@ -692,7 +692,7 @@ EC_POINT *EC_POINT_new(const EC_GROUP *group)
return NULL;
}
ret = OPENSSL_malloc(sizeof *ret);
ret = OPENSSL_malloc(sizeof(*ret));
if (ret == NULL) {
ECerr(EC_F_EC_POINT_NEW, ERR_R_MALLOC_FAILURE);
return NULL;
@@ -727,7 +727,7 @@ void EC_POINT_clear_free(EC_POINT *point)
point->meth->point_clear_finish(point);
else if (point->meth->point_finish != 0)
point->meth->point_finish(point);
OPENSSL_clear_free(point, sizeof *point);
OPENSSL_clear_free(point, sizeof(*point));
}
int EC_POINT_copy(EC_POINT *dest, const EC_POINT *src)