memset, memcpy, sizeof consistency fixes

Just as with the OPENSSL_malloc calls, consistently use sizeof(*ptr)
for memset and memcpy.  Remove needless casts for those functions.
For memset, replace alternative forms of zero with 0.

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

ZLIB compression deserves a better comment

What could be better than to refer to the RFC that defines it?

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

Fix windows build

Fix error in WIN32_rename() introduced by commit b4faea50c35.

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

make update

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

Remove the last traces of the fake RLE compression

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

Add more error state transitions (DTLS)

Ensure all fatal errors transition into the new error state for DTLS.

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

Add more error state transitions (client)

Ensure all fatal errors transition into the new error state on the client
side.

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

Add more error state transitions

Ensure all fatal errors transition into the new error state on the server
side.

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

Add Error state

Reusing an SSL object when it has encountered a fatal error can
have bad consequences. This is a bug in application code not libssl
but libssl should be more forgiving and not crash.

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

Update multi-thread FAQ

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

Remove apps cache for gethostbyname

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

make update

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

ssl/kssl.c: include missing header to complete SSL structure's defn.

Signed-off-by: mancha security <mancha1@zoho.com>
Signed-off-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Dr. Stephen Henson <steve@openssl.org>

ssl/ssl_asn1.c: Fix typo introduced via cc5b6a03a320f1

Signed-off-by: mancha security <mancha1@zoho.com>
Signed-off-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Dr. Stephen Henson <steve@openssl.org>

Remove libcrypto to libssl dependency

Remove dependency on ssl_locl.h from v3_scts.c, and incidentally fix a build problem with
kerberos (the dependency meant v3_scts.c was trying to include krb5.h, but without having been
passed the relevanant -I flags to the compiler)

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

Remove the fake RLE compression method.

RLE is a no-op only for testing.  Remove it.

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

GH271: Warning on </dev/null to CA.pl

If CA.pl is reading from /dev/null, then "chop $FILE" gives a warning.
Sigh.  Have to add "if $FILE".  This just silences a build warning.
Thanks to GitHub user andrejs-igumenovs for help with this.

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

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>

RT2943: Check sizes if -iv and -K arguments

RT2943 only complains about the incorrect check of -K argument size,
we might as well do the same thing with the -iv argument.

Before this, we only checked that the given argument wouldn't give a
bitstring larger than EVP_MAX_KEY_LENGTH.  we can be more precise and
check against the size of the actual cipher used.

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

Have -K actually take an argument, and correct help text

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

Fix cut/paste error

Was memset with wrong sizeof.

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

RT1369: don't do "helpful" access check.

Don't do access check on destination directory; it breaks when euid/egid
is different from real uid/gid.

Reviewed-by: Richard Levitte <levitte@openssl.org>
Signed-off-by: Rich Salz <rsalz@akamai.com>

Return an error in ASN1_TYPE_unpack_sequence if argument is NULL

Thanks to Brian Carpenter for reporting this issue.

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

more OSSL_NELEM cases

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

ssl/s3_srvr.c: Fix typo introduced via 69f682374868b.

Incorrect name used for SSL_AD_INTERNAL_ERROR.

Signed-off-by: mancha security <mancha1@zoho.com>
Signed-off-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Rich Salz <rsalz@openssl.org>

Fixes some typos in doc/ssl/

This is the last of Alok's PR260
Reviewed-by: Tim Hudson <tjh@openssl.org>

Fixes some typos in doc/apps/

Signed-off-by: Rich Salz <rsalz@akamai.com>
Reviewed-by: Tim Hudson <tjh@openssl.org>

RT3802: Fixes typos in doc/crypto/

Signed-off-by: Rich Salz <rsalz@akamai.com>
Reviewed-by: Tim Hudson <tjh@openssl.org>

fix various typo's

 https://github.com/openssl/openssl/pull/176 (CHANGES)
 https://rt.openssl.org/Ticket/Display.html?id=3545 (objects.txt)
 https://rt.openssl.org/Ticket/Display.html?id=3796 (verify.pod)

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

Add OSSL_NELEM macro.

Add OSSL_NELEM macro to e_os.h to determine the number of elements in an
array.

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

Remove obsolete make variables

ONEDIRS, EDIRS and WDIRS aren't used anywhere.  Most probably remains
from a build system of the past, it's time they get put to rest.

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

Clean all .o files.

Reviewed-by: Rich Salz

make X509_VERIFY_PARAM opaque

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

Remove shlib/

Cleanup of files that haven't been used, touched, or I suspect, even
noticed for a long time.

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

RT3820: Don't call GetDesktopWindow()

Signed-off-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: Richard Levitte <levitte@openssl.org>

RT3776: Wrong size for malloc

Use sizeof *foo parameter, to avoid these errors.

Reviewed-by: Viktor Dukhovni <viktor@openssl.org>

Fix uninitialized variable.

Signed-off-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: Viktor Dukhovni <viktor@openssl.org>

Remove outdated RC4 files

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

free NULL cleanup -- coda

After the finale, the "real" final part. :)  Do a recursive grep with
"-B1 -w [a-zA-Z0-9_]*_free" to see if any of the preceeding lines are
an "if NULL" check that can be removed.

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

Remove goto inside an if(0) block

There were a dozen-plus instances of this construct:
   if (0) { label: ..... }

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

Fix build on MacOS.

Reviewed-by: Andy Polyakov

Use BN_ULONG format.

Reviewed-by: Andy Polyakov

u_len may be unused.

Reviewed-by: Andy Polyakov

free NULL cleanup 11

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: Richard Levitte <levitte@openssl.org>

free null cleanup finale

Don't check for NULL before calling OPENSSL_free

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

Fix some typo's, silence warnings.

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

Rewrite CA.pl.in

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: Richard Levitte <levitte@openssl.org>

free NULL cleanup 7

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: Richard Levitte <levitte@openssl.org>

Fix buffer overrun in RSA signing

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: Andy Polyakov <appro@openssl.org>

Add sanity check to print_bin function

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: Andy Polyakov <appro@openssl.org>

Add sanity check to ssl_get_prev_session

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: Andy Polyakov <appro@openssl.org>

Sanity check the return from final_finish_mac

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: Andy Polyakov <appro@openssl.org>

Add sanity check in ssl3_cbc_digest_record

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: Andy Polyakov <appro@openssl.org>

Clarify logic in BIO_*printf functions

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: Andy Polyakov <appro@openssl.org>

Sanity check EVP_EncodeUpdate buffer len

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: Andy Polyakov <appro@openssl.org>

Sanity check EVP_CTRL_AEAD_TLS_AAD

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: Andy Polyakov <appro@openssl.org>

Sanity check DES_enc_write buffer length

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: Andy Polyakov <appro@openssl.org>

free cleanup 12

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: Richard Levitte <levitte@openssl.org>

make update

Run make update following previous header file changes.

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

free cleanup almost the finale

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: Richard Levitte <levitte@openssl.org>

In apps, malloc or die

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: Richard Levitte <levitte@openssl.org>

free NULL cleanup 5a

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: Richard Levitte <levitte@openssl.org>

free NULL cleanup 8

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: Richard Levitte <levitte@openssl.org>

Fix bug, "what mode" test was wrong.

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

Fix windows build

The big apps cleanup broke the windows build. This commit
fixes some miscellaneous issues so that it builds again.

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

Remove redundant includes from dtls1.h

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: Andy Polyakov <appro@openssl.org>

Add HTTP GET support to OCSP server

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

Rewrite parse_name

Remove need for multiple arrays, parse the X509 name
one RDN at a time.  Thanks to Andy for careful review.

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

use isxdigit and apps_tohex

Replace ad-hoc ascii->hex with isxdigit and new app_tohex.

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

Remove needless bio_err argument

Many functions had a BIO* parameter, and it was always called
with bio_err.  Remove the param and just use bio_err.

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

Make "make rehash" quiet

Don't complain about missing config file.
(Got the right env var name this time)

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

realloc of NULL is like malloc

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

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

remove malloc casts

Following ANSI C rules, remove the casts from calls to
OPENSSL_malloc and OPENSSL_realloc.

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

ERR_ cleanup

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: Richard Levitte <levitte@openssl.org>

Allow for types with leading underscore when checking error macros.

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: Emilia Käsper <emilia@openssl.org>

NISTZ256: owur'ize.

__owur'ize static methods to catch calling errors within the module.

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

NISTZ256: use EC_POINT API and check errors.

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

CRYPTO_mem_leaks should ignore it's BIO argument.

CRYPTO_mem_leaks takes a BIO* argument.  It's not a leak if that
argument hasn't been free'd.

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

NISTZ256: don't swallow malloc errors

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

NISTZ256: set Z_is_one to boolean 0/1 as is customary.

Cosmetic, no real effect.

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

Error checking and memory leak fixes in NISTZ256.

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

Fix Wmaybe-uninitialized: initialize variable

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

Fix the check of test apps in util/mk1mf.pl

The previous check assumed that the variables for each test app, ending
with TEST would be indication enough.  Experience showed that this isn't
the best way.  Instead, simply look for the EXE variable in test/Makefile.

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

Small fixes after the Big apps cleanup

This fixes util/mk1mf.pl, which was looking for old variable names from
apps/Makefile.

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

Add readline (etc) support

Compile with -DREADLINE and the appropriate library.

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

Simplify parse_yesno; remove local variable

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

Fix typo in help & comment formatting

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

Fix error message

Reviewed-by: Viktor Dukhovni <viktor@openssl.org>

Fix main build breakage.

A variable declaration got dropped during a merge.
And if a compiler inlines strcmp() and you put a strcmp in an
assert message, the resultant stringification exceeds ANSI string
limits.

Reviewed-by: Viktor Dukhovni <viktor@openssl.org>

Remove the special list-xxxx commands

There's a new "list" command, which takes a flag to say what
to list.  Removing the old hacky commands.  Re-ordered some
functions to remove some needless declarations.

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

RT2962: add -keytab and -krb5svc flags.

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

Free malloc data on encoding errors.

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

apps-cleanup: the doc fixes

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

Quote HTML entities in s_server output

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

RT2206: Add -issuer flag to ocsp command

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

Remove EFENCE support.

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

RT2451: Add telnet to s_client -starttls

Also add -xmpphost and -smtphost flags.

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

Add -nocommands to s_client.

Add flag to disable the 'command letters' from s_client.

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

fewer NO_ENGINE #ifdef's

Make setup_engine be a dummy if NO_ENGINE is enabled.
The option is not enabled if NO_ENGINE is enabled, so the one "wasted"
variable just sits there. Removes some variables and code.

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

Add missing BIO_flush() calls

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