There were a dozen-plus instances of this construct:
   if (0) { label: ..... }
Reviewed-by: NTim Hudson <tjh@openssl.org>

Reviewed-by: Andy Polyakov

Reviewed-by: Andy Polyakov

Reviewed-by: Andy Polyakov

Don't check for NULL before calling free functions. This gets:
        ERR_STATE_free
        ENGINE_free
        DSO_free
        CMAC_CTX_free
        COMP_CTX_free
        CONF_free
        NCONF_free NCONF_free_data _CONF_free_data
        A sk_free use within OBJ_sigid_free
        TS_TST_INFO_free (rest of TS_ API was okay)
        Doc update for UI_free (all uses were fine)
        X509V3_conf_free
        X509V3_section_free
        X509V3_string_free
Reviewed-by: NRichard Levitte <levitte@openssl.org>

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

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

Reformat CA.pl.in to follow coding style.
Also add "use strict" and "use warnings"
Also modify it to exit properly and report only when succeeded.
And some perl tweaks via Richard.
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>

The problem occurs in EVP_PKEY_sign() when using RSA with X931 padding.
It is only triggered if the RSA key size is smaller than the digest length.
So with SHA512 you can trigger the overflow with anything less than an RSA
512 bit key. I managed to trigger a 62 byte overflow when using a 16 bit RSA
key. This wasn't sufficient to cause a crash, although your mileage may
vary.

In practice RSA keys of this length are never used and X931 padding is very
rare. Even if someone did use an excessively short RSA key, the chances of
them combining that with a longer digest and X931 padding is very
small. For these reasons I do not believe there is a security implication to
this. Thanks to Kevin Wojtysiak (Int3 Solutions) and Paramjot Oberoi (Int3
Solutions) for reporting this issue.
Reviewed-by: NAndy Polyakov <appro@openssl.org>

Add a sanity check to the print_bin function to ensure that the |off|
argument is positive. Thanks to Kevin Wojtysiak (Int3 Solutions) and
Paramjot Oberoi (Int3 Solutions) for reporting this issue.
Reviewed-by: NAndy Polyakov <appro@openssl.org>

Sanity check the |len| parameter to ensure it is positive. Thanks to Kevin
Wojtysiak (Int3 Solutions) and Paramjot Oberoi (Int3 Solutions) for
reporting this issue.
Reviewed-by: NAndy Polyakov <appro@openssl.org>

The return value is checked for 0. This is currently safe but we should
really check for <= 0 since -1 is frequently used for error conditions.
Thanks to Kevin Wojtysiak (Int3 Solutions) and Paramjot Oberoi (Int3
Solutions) for reporting this issue.
Reviewed-by: NAndy Polyakov <appro@openssl.org>

For SSLv3 the code assumes that |header_length| > |md_block_size|. Whilst
this is true for all SSLv3 ciphersuites, this fact is far from obvious by
looking at the code. If this were not the case then an integer overflow
would occur, leading to a subsequent buffer overflow. Therefore I have
added an explicit sanity check to ensure header_length is always valid.
Thanks to Kevin Wojtysiak (Int3 Solutions) and Paramjot Oberoi (Int3
Solutions) for reporting this issue.
Reviewed-by: NAndy Polyakov <appro@openssl.org>

The static function dynamically allocates an output buffer if the output
grows larger than the static buffer that is normally used. The original
logic implied that |currlen| could be greater than |maxlen| which is
incorrect (and if so would cause a buffer overrun). Also the original
logic would call OPENSSL_malloc to create a dynamic buffer equal to the
size of the static buffer, and then immediately call OPENSSL_realloc to
make it bigger, rather than just creating a buffer than was big enough in
the first place. Thanks to Kevin Wojtysiak (Int3 Solutions) and Paramjot
Oberoi (Int3 Solutions) for reporting this issue.
Reviewed-by: NAndy Polyakov <appro@openssl.org>

There was already a sanity check to ensure the passed buffer length is not
zero. Extend this to ensure that it also not negative. Thanks to Kevin
Wojtysiak (Int3 Solutions) and Paramjot Oberoi (Int3 Solutions) for
reporting this issue.
Reviewed-by: NAndy Polyakov <appro@openssl.org>

The various implementations of EVP_CTRL_AEAD_TLS_AAD expect a buffer of at
least 13 bytes long. Add sanity checks to ensure that the length is at
least that. Also add a new constant (EVP_AEAD_TLS1_AAD_LEN) to evp.h to
represent this length. Thanks to Kevin Wojtysiak (Int3 Solutions) and
Paramjot Oberoi (Int3 Solutions) for reporting this issue.
Reviewed-by: NAndy Polyakov <appro@openssl.org>

Add a sanity check to DES_enc_write to ensure the buffer length provided
is not negative. Thanks to Kevin Wojtysiak (Int3 Solutions) and Paramjot
Oberoi (Int3 Solutions) for reporting this issue.
Reviewed-by: NAndy Polyakov <appro@openssl.org>

Don't check for NULL before calling free function.  This gets:
        NAME_CONSTRAINTS_free GENERAL_SUBTREE_free ECDSA_METHOD_free
        JPAKE_CTX_free OCSP_REQ_CTX_free SCT_free SRP_VBASE_free
        SRP_gN_free SRP_user_pwd_free TXT_DB_free
Reviewed-by: NRichard Levitte <levitte@openssl.org>

Run make update following previous header file changes.
Reviewed-by: NRich Salz <rsalz@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>

No point in proceeding if you're out of memory.  So change
*all* OPENSSL_malloc calls in apps to use the new routine which
prints a message and exits.
Reviewed-by: NRichard Levitte <levitte@openssl.org>

Don't check for NULL before calling a free routine.  This gets X509_.*free:
    x509_name_ex_free X509_policy_tree_free X509_VERIFY_PARAM_free
    X509_STORE_free X509_STORE_CTX_free X509_PKEY_free
    X509_OBJECT_free_contents X509_LOOKUP_free X509_INFO_free
Reviewed-by: NRichard Levitte <levitte@openssl.org>

Do not check for NULL before calling a free routine.  This addresses:
    ASN1_BIT_STRING_free ASN1_GENERALIZEDTIME_free ASN1_INTEGER_free
    ASN1_OBJECT_free ASN1_OCTET_STRING_free ASN1_PCTX_free ASN1_SCTX_free
    ASN1_STRING_clear_free ASN1_STRING_free ASN1_TYPE_free
    ASN1_UTCTIME_free M_ASN1_free_of
Reviewed-by: NRichard Levitte <levitte@openssl.org>

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

The big apps cleanup broke the windows build. This commit
fixes some miscellaneous issues so that it builds again.
Reviewed-by: NAndy Polyakov <appro@openssl.org>

There were a set of includes in dtls1.h which are now redundant due to the
libssl opaque work. This commit removes those includes, which also has the
effect of resolving one issue preventing building on windows (i.e. the
include of winsock.h)
Reviewed-by: NAndy Polyakov <appro@openssl.org>

Reviewed-by: NAndy Polyakov <appro@openssl.org>

Remove need for multiple arrays, parse the X509 name
one RDN at a time.  Thanks to Andy for careful review.
Reviewed-by: NAndy Polyakov <appro@openssl.org>

Replace ad-hoc ascii->hex with isxdigit and new app_tohex.
Reviewed-by: NAndy Polyakov <appro@openssl.org>

Many functions had a BIO* parameter, and it was always called
with bio_err.  Remove the param and just use bio_err.
Reviewed-by: NMatt Caswell <matt@openssl.org>

Don't complain about missing config file.
(Got the right env var name this time)
Reviewed-by: NRichard Levitte <levitte@openssl.org>

ANSI C, and OpenSSL's malloc wrapper do this, also.
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>

Remove ERR_[gs]et_implementation as they were not undocumented and
useless (the data structure was opaque).

Halve the number of lock/unlock calls in almost all ERR_
functions by letting the caller of get_hash or int_thread_set
able to lock.  Very useful when looping, such as adding errors,
or when getting the hash and immediately doing a lookup on it.
Reviewed-by: NRichard Levitte <levitte@openssl.org>

We have an increasing number of function declarations starting with
'__owur'.  Unfortunately, util/ck_errf.pl fails to detect them.  A
simple change fixes that issue.
Reviewed-by: NEmilia Käsper <emilia@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>

CRYPTO_mem_leaks takes a BIO* argument.  It's not a leak if that
argument hasn't been free'd.
Reviewed-by: NRichard Levitte <levitte@openssl.org>

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