Drop unused conf, pem, and x509 headers, add unistd for pledge

openssl enc: drop a few parens and unwrap a few lines

No binary change on amd64

openssl enc: small style fixup after ZLIB unifdef

Unifdef ZLIB

This is very dead code: the openssl app was never compiled with -DZLIB
after January 1, 2015.

Rename struct ${app}_config to plain cfg

All the structs are static and we need to reach into them many times.
Having a shorter name is more concise and results in less visual clutter.
It also avoid

Rename struct ${app}_config to plain cfg

All the structs are static and we need to reach into them many times.
Having a shorter name is more concise and results in less visual clutter.
It also avoids many overlong lines and we will be able to get rid of some
unfortunate line wrapping down the road.

Discussed with jsing

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openssl enc doesn't really support AEAD ciphers and XTS mode

Do not display such ciphers in the usage display and error out if
they are given. As pointed out by Pauli Dale, the current situation
is

openssl enc doesn't really support AEAD ciphers and XTS mode

Do not display such ciphers in the usage display and error out if
they are given. As pointed out by Pauli Dale, the current situation
is confusing.

Fixes GH issues #786 and #819

ok jsing

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Remove the legacy interactive mode from openssl(1).

This removes the legacy interactive mode from openssl(1) since it is
rarely used, complicates the code, and has also been removed from
OpenSSL in

Remove the legacy interactive mode from openssl(1).

This removes the legacy interactive mode from openssl(1) since it is
rarely used, complicates the code, and has also been removed from
OpenSSL in version 3.x.x.

ok tb@ jsing@

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Simple conversion to opaque EVP_CIPHER.

remove superfluous comment

zero tmpkeyiv buffer after use when encrypting

from Steven Roberts

Mark the initialized struct options arrays as both static and const.
This moves them from .data to .data.rel.ro

ok deraadt@ inoguchi@

Sort.

Make the openssl(1) enc -iter flag actually work.

Diff from Steven Roberts <sroberts at fenderq dot com> - thanks!

Fix weird wrap showing cipher list in interactive mode

ok jsing@ tb@

Summarize the 4 same name functions and move it to apps.c

ok tb@ jsing@

Add -iter and -pbkdf2 to the usage synopsis.
Reorder option descriptions so -iter and -pbkdf2 show up alphabetically.
Add missing argument name for -iter.
ok jmc@

Change the default digest type to sha256, and add support for
pbkdf2 with OpenSSL compatible flags
ok jsing@

Indent labels with a single space so that diff prototypes are more useful.

Remove guards around *_free() calls since these functions handle NULL.

rearrange pledge promises into the canonical order; easier to eyeball

hexidecimal->hexadecimal; from mmcc
ok beck

Exit if a pledge call fails in non-interactive mode.

ok semarie@

add "tty" for several subcommands of openssl

it is needed in order to let libssl UI_* function plays with echo on/off when
asking for password on terminal.

passwd subcommand needs additionnal "wpat

add "tty" for several subcommands of openssl

it is needed in order to let libssl UI_* function plays with echo on/off when
asking for password on terminal.

passwd subcommand needs additionnal "wpath cpath" in order to let it calls
fopen("/dev/tty", "w") (O_WRONLY with O_CREAT | O_TRUNC).

problem reported by several
with and ok doug@

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Initial support for pledges in openssl(1) commands.

openssl(1) has two mechanisms for operating: either a single execution
of one command (looking at argv[0] or argv[1]) or as an interactive
session

Initial support for pledges in openssl(1) commands.

openssl(1) has two mechanisms for operating: either a single execution
of one command (looking at argv[0] or argv[1]) or as an interactive
session than may execute any number of commands.

We already have a top level pledge that should cover all commands
and that's what interactive mode must continue using. However, we can
tighten up the pledges when only executing one command.

This is an initial stab at support and may contain regressions. Most
commands only need "stdio rpath wpath cpath". The pledges could be
further restricted by evaluating the situation after parsing options.

deraadt@ and beck@ are roughly fine with this approach.

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Remove engine command and parameters from openssl(1).

We do not have any builtin or dynamic engines, meaning openssl(1) has
no way to use the engine command or parameters at all.

ok jsing@