TLS/SSL and crypto library
ac6ae8a9fe
The original intent was that if someone had a "make variable" set in
any kind of way, be it as an environment variable or as an argument to
Configure, we wouldn't allow compiler or linker flags as arguments as
well. That made both of these configurations equivalently impossible:
./Configure target CFLAGS=-foo -lextra
CFLAGS=-foo ./Configure target -lextra
While this makes things look nice and consistent, real world use makes
this hard, as many projects where OpenSSL is a component also set
these variables for other components that use GNU autotools.
Therefore, we need to adapt our Configure accordingly. By
consequence, the two Configure lines above will not be equivalent any
more:
./Configure target CFLAGS=-foo -lextra
This command line will still fail, because the "make variable" was
given as a command line argument. This cannot be a mistake and is
therefore not allowed.
CFLAGS=-foo ./Configure target -lextra
This command line will work, but because there is a linker flag as
a command line argument, the environment (i.e. CFLAGS) is ignored.
That isn't quite consistent with the previous command, but is the old
Configure behavior, before the support for "make variables" was added,
and is therefore the backward compatible behavior.
Fixes google/oss-fuzz#1244
Reviewed-by: Andy Polyakov <appro@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/5641)
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| apps | ||
| boringssl@2070f8ad91 | ||
| Configurations | ||
| crypto | ||
| demos | ||
| doc | ||
| engines | ||
| external/perl | ||
| fuzz | ||
| include | ||
| krb5@b9ad6c4950 | ||
| ms | ||
| os-dep | ||
| pyca-cryptography@c1f8e46033 | ||
| ssl | ||
| test | ||
| tools | ||
| util | ||
| VMS | ||
| .gitattributes | ||
| .gitignore | ||
| .gitmodules | ||
| .travis-apt-pin.preferences | ||
| .travis-create-release.sh | ||
| .travis.yml | ||
| ACKNOWLEDGEMENTS | ||
| appveyor.yml | ||
| AUTHORS | ||
| build.info | ||
| CHANGES | ||
| config | ||
| config.com | ||
| Configure | ||
| CONTRIBUTING | ||
| e_os.h | ||
| FAQ | ||
| INSTALL | ||
| LICENSE | ||
| NEWS | ||
| NOTES.DJGPP | ||
| NOTES.PERL | ||
| NOTES.UNIX | ||
| NOTES.VMS | ||
| NOTES.WIN | ||
| README | ||
| README.ECC | ||
| README.ENGINE | ||
| README.FIPS | ||
OpenSSL 1.1.1-pre3-dev
Copyright (c) 1998-2018 The OpenSSL Project
Copyright (c) 1995-1998 Eric A. Young, Tim J. Hudson
All rights reserved.
DESCRIPTION
-----------
The OpenSSL Project is a collaborative effort to develop a robust,
commercial-grade, fully featured, and Open Source toolkit implementing the
Transport Layer Security (TLS) protocols (including SSLv3) as well as a
full-strength general purpose cryptographic library.
OpenSSL is descended from the SSLeay library developed by Eric A. Young
and Tim J. Hudson. The OpenSSL toolkit is licensed under a dual-license (the
OpenSSL license plus the SSLeay license), which means that you are free to
get and use it for commercial and non-commercial purposes as long as you
fulfill the conditions of both licenses.
OVERVIEW
--------
The OpenSSL toolkit includes:
libssl (with platform specific naming):
Provides the client and server-side implementations for SSLv3 and TLS.
libcrypto (with platform specific naming):
Provides general cryptographic and X.509 support needed by SSL/TLS but
not logically part of it.
openssl:
A command line tool that can be used for:
Creation of key parameters
Creation of X.509 certificates, CSRs and CRLs
Calculation of message digests
Encryption and decryption
SSL/TLS client and server tests
Handling of S/MIME signed or encrypted mail
And more...
INSTALLATION
------------
See the appropriate file:
INSTALL Linux, Unix, Windows, OpenVMS, ...
NOTES.* INSTALL addendums for different platforms
SUPPORT
-------
See the OpenSSL website www.openssl.org for details on how to obtain
commercial technical support. Free community support is available through the
openssl-users email list (see
https://www.openssl.org/community/mailinglists.html for further details).
If you have any problems with OpenSSL then please take the following steps
first:
- Download the latest version from the repository
to see if the problem has already been addressed
- Configure with no-asm
- Remove compiler optimization flags
If you wish to report a bug then please include the following information
and create an issue on GitHub:
- OpenSSL version: output of 'openssl version -a'
- Configuration data: output of 'perl configdata.pm --dump'
- OS Name, Version, Hardware platform
- Compiler Details (name, version)
- Application Details (name, version)
- Problem Description (steps that will reproduce the problem, if known)
- Stack Traceback (if the application dumps core)
Just because something doesn't work the way you expect does not mean it
is necessarily a bug in OpenSSL. Use the openssl-users email list for this type
of query.
HOW TO CONTRIBUTE TO OpenSSL
----------------------------
See CONTRIBUTING
LEGALITIES
----------
A number of nations restrict the use or export of cryptography. If you
are potentially subject to such restrictions you should seek competent
professional legal advice before attempting to develop or distribute
cryptographic code.