如何确定openssl库的版本?

I have a pre-built OpenSSL library (libssl.a and libcrypto.a) which are being used for my C++ application. I don't know the version of the OpenSSL library.

我有一个预构建的OpenSSL库(libssl)。a和libcryptoa)，用于我的c++应用程序。我不知道OpenSSL库的版本。

Is there any way to get the version number from these pre-built libraries?

有没有办法从这些预构建的库中获取版本号?

5 个解决方案

#1

You can do this programatically by reading the following:

您可以通过阅读以下内容来编程:

OPENSSL_VERSION_NUMBER(3)
OPENSSL_VERSION_NUMBER(3)

and

和

SSLeay_version(3)
SSLeay_version(3)

Basically, you will need to use the following functions:

基本上，你需要使用以下功能:

SSLeay()
SSLeay()
SSLeay_version()
SSLeay_version()

#2

There is a string inside the library containing the version details called SSLEAY_VERSION - it looks like:

库中有一个字符串，其中包含名为SSLEAY_VERSION的版本细节—它看起来如下:

OpenSSL 0.9.5a 1 Apr 2000
OpenSSL 0.9.5a 1 Apr 2000。
OpenSSL 1.0.1e-fips 11 Feb 2013
2013年2月11日

You can find this from the binary library using strings and grep:

您可以在二进制库中使用字符串和grep找到这个:

strings libcrypto.so | grep "^OpenSSL \S\+ [0-9]\+ \S\+ [0-9]\+"

#3

You can use the following:

你可使用以下资料:

strings libssl.so | grep "^OpenSSL \S\+ [0-9]\+ \S\+ [0-9]\+"

#4

Well the filtering may may not always work. You could do

过滤可能并不总是有效。你可以做

strings libssl.so | grep "^OpenSSL"
OpenSSLDie
OpenSSL 1.0.2n  7 Dec 2017

strings libcrypto.so | grep "^OpenSSL"
OpenSSLDie
OpenSSL_add_all_ciphers
OpenSSL_add_all_digests
OpenSSL 1.0.2n  7 Dec 2017
OpenSSL HMAC method
OpenSSL EC algorithm
OpenSSL RSA method
OpenSSL DSA method
OpenSSL ECDSA method
OpenSSL DH Method
OpenSSL X9.42 DH method
OpenSSL PKCS#3 DH method
OpenSSL ECDH method
OpenSSL 'dlfcn' shared library method
OpenSSL default
OpenSSL default user interface
OpenSSL CMAC method

#5

You could also use :

你也可以使用:

openssl version -a

See reference at : https://linux.die.net/man/1/version

参见参考:https://linux.die.net/man/1/version

#1