Add ordinal numbers to the .num files

Now that our next release is expected to be a beta release, "make update"
wants to see ordinal numbers in the .num files.

Run make update to add them.

Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/15384)

apps/cms: Clean up order of options in help output and documentation

Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/15126)

APPS: Allow duplicate entries in options list, marking them OPT_DUP

Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/15126)

APPS: Allow non-option parameters appear anywhere in list, marking them OPT_PARAM

Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/15126)

check-format.pl: Rename '*-cmt' options '*-comment'

Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/15077)

check-format.pl: Rename 'one-letter' to 'single-letter', do not report 'l'

Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/15077)

check-format.pl: Allow extra space before end-of-line comments unless -e|--eol-cmt given

Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/15077)

check-format.pl: Replace 'SPC' and 'spc' by 'space' in reports and option names

Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/15077)

check-format.pl: Fix false positive on struct/union/enum in func return type

Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/15077)

check-format.pl: Fix false positive "no SPC before binary '*'" for '!*'

Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/15077)

check-format.pl: Report needless intermediate multiple SPC only on -e or --extra-spc

Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/15077)

check-format.pl: Add check for constant left of comparison operator

Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/15077)

VMS: Copy __DECC_INCLUDE_{PROLOGUE,EPILOGUE}.H to more places

Every inclusion directory related to a library we build need these two
files.  That signals to any other module using anything from these
libraries what to expect in terms of case sensitivity as well as how
long symbol names are dealt with.

Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/15341)

util/find-doc-nits: Improve helpstr pattern matching

Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/15299)

DOC: Fix nits found by new check on SYNOPSIS and OPTIONS consistency

Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/15299)

find-doc-nits: Check that man1 SYNOPSIS and OPTIONS contain same options

Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/15299)

find-doc-nits: Add -m option allowing to select on which of man1,man3,man5,man7 to focus on

Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/15299)

find-doc-nits: Minor improvements of help and diagnostic output

Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/15299)

CMP test server: move apps/{,lib/}cmp_mock_srv.c and apps/{,include/}cmp_mock_srv.h

Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/15343)

apps/cmp.c: Move CMP server code portion to separate function

Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/15343)

Prepare for 3.0 beta 1

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

Prepare for release of 3.0 alpha 17

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

make update

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

Update copyright year

Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/15381)

EVP: Modify EVP_PKEY_export() to handle legacy EVP_PKEYs

We use a fake EVP_KEYMGMT import function with the newly modified
EVP_PKEY_ASN1_METHOD export_to function to pass the exported
OSSL_PARAM array directly to the EVP_PKEY_export() callback instead of
exporting to an actual provided key and then getting the OSSL_PARAM
array from there, just to throw away that key again.

Fixes #15290

Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/15293)

Modify EVP_PKEY_ASN1_METHOD's export_to function to take an importer

We previously took an EVP_KEYMGMT pointer, but now found it necessary
to use a different import function in some cases.  Since that's the
only thing we use from EVP_KEYMGMT, we might as well pass the import
function directly, allowing for some flexibility in how export_to is
used.

Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/15293)

test/evp_extra_test2.c: Try EVP_PKEY_export() with a legacy RSA key

Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/15293)

Refer to the migration guide rather than the wiki in our announcements

We now have a migration guide which should be the definitive source of
information for upgrading from a previous version of OpenSSL.

Fixes #15186

Reviewed-by: Nicola Tuveri <nic.tuv@gmail.com>
Reviewed-by: Tim Hudson <tjh@openssl.org>
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/15373)

Create symlinks when installing man pages

In 1.1.1 when installing the man pages we created symlinks to the base
page for all functions described on the page. We need to continue doing
this.

Fixes #14846

Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/15312)

app: add a -store_loaders option to list.

Fixes #15307

Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/15323)

Complete 'no-sock' guards in apps/ocsp.c

Modern compilers complain about variable being set but otherwise not used.

Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/15339)

Update documentation for global properties mirroring

Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/15242)

Ensure mirroring of properties works for subsequent updates

If the global properties are updated after a provider with a child libctx
has already started we need to make sure those updates are mirrored in
that child.

Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/15242)

Documentation updates for mirroring of global properties

Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/15242)

Test that properties are mirrored as we expect

Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/15242)

Add a callback for providers to know about global properties changes

Where a child libctx is in use it needs to know what the current global
properties are.

Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/15242)

Add a test for converting a property list to a string

Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/15242)

Implement the ability to convert a PROPERTY_LIST to a string

We have the ability to parse a string into a PROPERTY_LIST already. Now
we have the ability to go the other way.

Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/15242)

todo: remove TODO(3.0) from the sources.

Almost all were notes about wanting to deprecate CTRLs/utility functions.

Fixes #15325

Reviewed-by: Tomas Mraz <tomas@openssl.org>
Reviewed-by: Shane Lontis <shane.lontis@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/15328)

Test d2i_PrivateKey_bio() does not add errors to stack when decoding a X25519 key sucessfully.

This confirms that another merge has addressed this issue.

Fixes #14996

Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/15303)

Revert "ARM assembly pack: translate bit-sliced AES implementation to AArch64"

This reverts commit da51566b256e0c0536d5b986e676863b0526bf5e.

Fixes #15321

Reviewed-by: Tim Hudson <tjh@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/15364)

Add migration guide for 3.0

Reviewed-by: Paul Dale <pauli@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/14710)

Update SSL_new_session_ticket() manual for triggered send

Document the recently added functionality.

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/14817)

Test new SSL_new_session_ticket() functionality

Now that we can become "in init" directly after the call, test the
various scenarios where explicit SSL_do_handshake() calls can come
into play.

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/14817)

Let SSL_new_session_ticket() enter init immediately

The initial implementation always deferred the generation of the
requested ticket(s) until the next application write, but this
is not a great fit for what it actually does, architecturally wise.
A request to send a session ticket means entering back into the
handshake state machine (or "in init", as it's known in the
implementation).  The state machine transition is not something that
only occurs at an application-data write, and in general could occur at
any time.  The only constraint is that we can't enter "init" while in
the middle of writing application data.  In such cases we will need to
wait until the next TLS record boundary to enter the state machine,
as is currently done.

However, there is no reason why we cannot enter the handshake state
machine immediately in SSL_new_session_ticket() if there are no
application writes pending.  Doing so provides a cleaner API surface to
the application, as then calling SSL_do_handshake() suffices to drive
the actual ticket generation.  In the previous state of affairs a dummy
zero-length SSL_write() would be needed to trigger the ticket
generation, which is a logical mismatch in the type of operation being
performed.

This commit should only change whether SSL_do_handshake() vs zero-length
SSL_write() is needed to immediately generate a ticket after the
SSL_new_session_ticket() call -- the default behavior is still to defer
the actual write until there is other application data to write, unless
the application requests otherwise.

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/14817)

danetest.c: Improve code formatting

Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/14422)

X509_STORE_CTX_get1_issuer(): Simplify code, reducing risk of failure

Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/14422)

X509 build_chain(): Fix two potential memory leaks on issuer variable

This also removes an inadequate guard: if (num == ctx->num_untrusted)

Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/14422)

X509 build_chain(): Make the variable 'curr' local to the loop body

This increases readability and maintainability.

Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/14422)

X509 build_chain(): Rename variable 'depth' to 'max_depth'

This should increase readability and maintainability.

Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/14422)

X509 build_chain(): Restrict scope of 'self_signed' variable

This should increase readability and maintainability.

Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/14422)

Make apps/progs.pl not look at apps/progs.c

apps/progs.pl will have apps/progs.c as output, and on some systems,
the output file of a program is locked against reading.
Unfortunately, apps/progs.c is also part of the sources that make up
apps/openssl, so it's necessary to mark that file in a way that makes
progs.pl skip over it.

Fortunately, this is easily done with a special attribute in
apps/build.info and a simple adaptation of apps/progs.pl.

Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/15332)

build.info: Make it possible to set attributes on SOURCE / SHARED_SOURCE stmts

Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/15332)

speed: Document the deficiencies of the command

Fixes #7032

Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/15330)

80-test_cms.t: Disable new tests for binary input in Windows

This is a quick workaround for #15347.

Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/15351)

apps/list: Remove obsolete -missing-help option

Reviewed-by: Paul Dale <pauli@openssl.org>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/15329)

find-doc-nits -c: Fix handling in case expected helpstr is not found

Reviewed-by: Paul Dale <pauli@openssl.org>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/15329)

unix-Makefile.tmpl and ci.yml: Merge cmd-nits into doc-nits

Reviewed-by: Paul Dale <pauli@openssl.org>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/15329)

Add bounds checking to length returned by wcslen in wide_to_asc conversion to resolve integer overflow flaw

Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/15316)

Make sure to include "crypto/ctype.h" to get ossl_isdigit()

Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/15319)

Make sure to include "internal/numbers.h" to get SIZE_MAX

Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/15319)

Fix crypto/bio/b_sock.c for VMS

Current VMS C-RTL does not have <sys/select.h>.  <sys/socket.h> is
a good enough replacement to get fd_set.

Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/15319)

Fix include/internal/sockets.h for VMS

It needs to include <openssl/opensslconf.h>

Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/15319)

Fix include/openssl/e_os2.h for VMS

It would try to define OPENSSL_SYS_VMS if that macro is defined.
That's just not right.

Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/15319)

Tweak apps/build.info for VMS

A bit of quoting is all that's needed, and it doesn't hurt other platforms.

Reviewed-by: Tim Hudson <tjh@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/15317)

VMS need to build DSO with name shortening, because of provider code

We have pretty long symbol names, so they need to be shortened to fit
in the linker's 31 character limit on symbols.

Symbol name shortening with the VMS C compiler works in such a way
that a symbol name that's longer than 31 characters is mangled into
its first original 22 characters, followed by a dollar sign and the
32-bit CRC of the original symbol name in hexadecimal.

Reviewed-by: Tim Hudson <tjh@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/15317)

Configurations/descrip.mms.tmpl: Add another inclusion hack

crypto/ec/curve448/ has a series of inclusions that throws VMS C
off, so we compensate for it the same way as we have done before.

Fixes #14247

Reviewed-by: Tim Hudson <tjh@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/15317)

Configurations/descrip.mms.tmpl: Change strategy for include directories

Instead of what we used to do, put all include directories in a number
of DCL variables and generate the /INCLUDE qualifier value on the
command line, we instead generate VMS C specific header files with
include directory pragmas, to be used with the VMS C's /FIRST_INCLUDE
qualifier.  This also shortens the command line, the size of which is
limited.

VMS C needs to have those include directories specified in a Unix
form, to be able to safely merge #include paths with them when
searching through them.

Fixes #14247

Reviewed-by: Tim Hudson <tjh@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/15317)

Thrown away all special descrip.mms variables

Reviewed-by: Tim Hudson <tjh@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/15317)

Fix configdata.pm.in's "use lib" for VMS

`use lib` needs Unix formatted paths.  For VMS, it means that we must
make sure to convert paths, and we may as well generalise it.

In this case, we need to adapt the functions sourcedir() and sourcefile()

Reviewed-by: Tim Hudson <tjh@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/15317)

Fix The VMS variant of platform->staticname()

It was looking in the wrong place in %unified_info to determine if the
library would be installed or not.

Reviewed-by: Tim Hudson <tjh@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/15317)

Fix OpenSSL::fallback for VMS

VMS unpackers will typically convert any period ('.') in directory
names to underscores, since the period is a path separator on VMS,
just like '/' is a path separator on Unix.  Our fallback mechanism
needs to account for that.

Reviewed-by: Tim Hudson <tjh@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/15317)

Configurations/descrip.mms.tmpl: Diverse updates

Get it back in sync with the other templates, and correct a few syntax
errors that have crept in.

Fixes #14247

Reviewed-by: Tim Hudson <tjh@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/15317)

Turn off VMS C's info about unsupported pragmas

VMS C can be notoriously informative about certain things, such as
unsupported pragmas.  The case here is that it doesn't support
"#pragma once", and since we use those quite a lot, that's a lot of
repeated information.  We simply turn that warning off.

Reviewed-by: Tim Hudson <tjh@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/15317)

Rework how a build file (Makefile, ...) is produced

The memory footprint of how we produced the Makefile was quite...
important, because we have all the processing in one perl snippet, and
generate the details of the build file by appending to the "magic"
variable $OUT.  The result is that this variable gets to hold the
majority of the build file text, and depending on memory reallocation
strategies for strings, the heap may hold multiple (possibly not just
a few) copies of this string, almost all of them "freed" but still
taking up space.  This has resulted in memory exhaustion.

We therefore change strategy, and generate the build file in two
phases, where the first phase generates the full template using small
perl snippets for each detail, and the second phase processes this
template.  This is much kinder to process memory.

Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/15310)

Move some OpenSSL perl utility functions to OpenSSL::Util

quotify1() and quotify_l() were in OpenSSL::Template, but should be
more widely usable.

configdata.pm.in's out_item() is also more widely useful and is
therefore moved to OpenSSL::Util as well, and renamed to dump_data().

Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/15310)

CMS_get0_SignerInfos(): Prevent spurious error on cms_get0_signed() failure

Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/12959)

apps/cms.c: Simplify make_receipt_request() and load_content_info(()

Also improve adherence to code formatting rules.

Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/12959)

apps/cms.c: Make -sign and -verify handle binary input

Fixes #8940

Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/12959)

Make SMIME_read_CMS_ex() and SMIME_read_ASN1_ex() support binary input

Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/12959)

bio_lib: Add BIO_get_line, correct doc of BIO_gets

Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/12959)

fips: remove unnecessary commas to get CI working

Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/15337)

Avoid failing label removal if label is not there

Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/15309)

Separate FIPS checksum and labelling into different workflows

Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/15309)

Remove "openssl ifdef" handling

Reviewed-by: David von Oheimb <david.von.oheimb@siemens.com>
Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/15311)

Remove '=for openssl ifdef'

No longer needed after rewrite of cmd-nits

Reviewed-by: David von Oheimb <david.von.oheimb@siemens.com>
Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/15311)

Better error messages if there are no encoders/decoders/store loaders

If you don't have the base or default providers loaded and therefore there
are no encoders/decoders or store loaders then the error messages can be
cryptic. We provide better hints about how to fix the problem.

Fixes #13798

Reviewed-by: Paul Dale <pauli@openssl.org>
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/15306)

Move ossl_sleep() to e_os.h and use it in apps

Fixes #15304

Reviewed-by: Tomas Mraz <tomas@openssl.org>
Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/15308)

DOC: Fix nits found by improved find-doc-nits -c

Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/15298)

ci.yml: Add cmd-nits to the doc-nits CI run

Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/15298)

openssl-dsa.pod.in: Fix glitch: pvk-string -> pvk-strong

Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/15298)

find-doc-nits: Make -c option (cmd-nits) independent of app build and execution

Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/15298)

apps/s_server: Add -proxy and -no_proxy options

Strongly related to feature request #6965

Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/15245)

apps/ocsp: Add -proxy and -no_proxy options

Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/15245)

Add -quiet flag to genpkey

Picking up late suggestions to PR #6909 by Philip Prindeville
<philipp@redfish-solutions.com>.

Reviewed-by: Shane Lontis <shane.lontis@oracle.com>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/15249)

apps: use else if when checking for headers in the http server code

Reviewed-by: Tomas Mraz <tomas@openssl.org>
Reviewed-by: Shane Lontis <shane.lontis@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/15300)

seal: make EVP_SealInit() library context aware

Reviewed-by: Tomas Mraz <tomas@openssl.org>
Reviewed-by: Shane Lontis <shane.lontis@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/15300)

hmac: fix coverity 1484888 negative integer to size_t conversion

More theoretical than real but easy and cheap to check for.

Reviewed-by: Tomas Mraz <tomas@openssl.org>
Reviewed-by: Shane Lontis <shane.lontis@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/15300)

keymgmt: fix coverity 1484886 unchecked return value

Reviewed-by: Tomas Mraz <tomas@openssl.org>
Reviewed-by: Shane Lontis <shane.lontis@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/15300)

evp: fix coverity 1484885 negative integer to size_t conversion

Theoretically, the IV length can come back negative which would explode.

Reviewed-by: Tomas Mraz <tomas@openssl.org>
Reviewed-by: Shane Lontis <shane.lontis@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/15300)