Use safer sizeof variant in malloc

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>

1 files changed, 1 insertions, 1 deletions

diff --git a/crypto/rsa/rsa_pmeth.c b/crypto/rsa/rsa_pmeth.c
index 94dc40881d..e407671cb7 100644
--- a/crypto/rsa/rsa_pmeth.c
+++ b/crypto/rsa/rsa_pmeth.c
@@ -97,7 +97,7 @@ typedef struct {
 static int pkey_rsa_init(EVP_PKEY_CTX *ctx)
 {
     RSA_PKEY_CTX *rctx;
-    rctx = OPENSSL_malloc(sizeof(RSA_PKEY_CTX));
+    rctx = OPENSSL_malloc(sizeof(*rctx));
     if (!rctx)
         return 0;
     rctx->nbits = 1024;