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: NRichard Levitte <levitte@openssl.org>

Don't check for NULL before calling OPENSSL_free
Reviewed-by: NRichard Levitte <levitte@openssl.org>

This gets BN_.*free:
    BN_BLINDING_free BN_CTX_free BN_FLG_FREE BN_GENCB_free
    BN_MONT_CTX_free BN_RECP_CTX_free BN_clear_free BN_free BUF_MEM_free

Also fix a call to DSA_SIG_free to ccgost engine and remove some #ifdef'd
dead code in engines/e_ubsec.
Reviewed-by: NRichard Levitte <levitte@openssl.org>

Add OPENSSL_clear_free which merges cleanse and free.
(Names was picked to be similar to BN_clear_free, etc.)
Removed OPENSSL_freeFunc macro.
Fixed the small simple ones that are left:
        CRYPTO_free CRYPTO_free_locked OPENSSL_free_locked
Reviewed-by: NRichard Levitte <levitte@openssl.org>

Following ANSI C rules, remove the casts from calls to
OPENSSL_malloc and OPENSSL_realloc.
Reviewed-by: NRichard Levitte <levitte@openssl.org>

__owur'ize static methods to catch calling errors within the module.
Reviewed-by: NRich Salz <rsalz@openssl.org>

Reviewed-by: NRich Salz <rsalz@openssl.org>

Reviewed-by: NRich Salz <rsalz@openssl.org>

Cosmetic, no real effect.
Reviewed-by: NRichard Levitte <levitte@openssl.org>

Reviewed-by: NRichard Levitte <levitte@openssl.org>

Thanks to Brian Smith for reporting these issues.
Reviewed-by: NRich Salz <rsalz@openssl.org>

Also add a few comments about constant-timeness.

Thanks to Brian Smith for reporting this issue.
Reviewed-by: NRich Salz <rsalz@openssl.org>

Ongoing work to skip NULL check before calling free routine.  This gets:
    ecp_nistz256_pre_comp_free nistp224_pre_comp_free nistp256_pre_comp_free
    nistp521_pre_comp_free PKCS7_free PKCS7_RECIP_INFO_free
    PKCS7_SIGNER_INFO_free sk_PKCS7_pop_free PKCS8_PRIV_KEY_INFO_free
    PKCS12_free PKCS12_SAFEBAG_free PKCS12_free sk_PKCS12_SAFEBAG_pop_free
    SSL_CONF_CTX_free SSL_CTX_free SSL_SESSION_free SSL_free ssl_cert_free
    ssl_sess_cert_free
Reviewed-by: NKurt Roeckx <kurt@openssl.org>

This gets EC_GROUP_clear_free EC_GROUP_free, EC_KEY_free,
EC_POINT_clear_free, EC_POINT_free
Reviewed-by: NKurt Roeckx <kurt@openssl.org>

Reviewed-by: NMatt Caswell <matt@openssl.org>

Picky compilers with old index() string functions.
Reviewed-by: NMatt Caswell <matt@openssl.org>

Reviewed-by: NTim Hudson <tjh@openssl.org>

Reviewed-by: NTim Hudson <tjh@openssl.org>

Reviewed-by: NTim Hudson <tjh@openssl.org>

Facilitate switch to custom scatter-gather routines. This modification
does not change algorithms, only makes it possible to implement
alternative. This is achieved by a) moving precompute table to assembly
(perlasm parses ecp_nistz256_table.c and is free to rearrange data to
match gathering algorithm); b) adhering to explicit scatter subroutine
(which for now is simply a memcpy). First implementations that will use
this option are 32-bit assembly implementations, ARMv4 and x86, where
equivalent of current read-whole-table-select-single-value algorithm
is too time-consuming. [On side note, switching to scatter-gather on
x86_64 would allow to improve server-side ECDSA performance by ~5%].
Reviewed-by: NBodo Moeller <bodo@openssl.org>

Reviewed-by: NDr. Stephen Henson <steve@openssl.org>

Reviewed-by: NTim Hudson <tjh@openssl.org>

RT: 3149
Reviewed-by: NRich Salz <rsalz@openssl.org>