OPENSSL_VERSION_NUMBER(3)

NAME

       SSLeay_version - retrieve version/build information about OpenSSL
       library

SYNOPSIS

        #include <openssl/crypto.h>

        const char *SSLeay_version(int type);

DESCRIPTION

       SSLeay_version() returns a pointer to a constant string describing the
       version of the OpenSSL library or giving information about the library
       build.

       The following type values are supported:

       SSLEAY_VERSION
           The version of the OpenSSL library including the release date.

       SSLEAY_CFLAGS
           The compiler flags set for the compilation process in the form
           "compiler: ..."  if available or "compiler: information not avail-
           able" otherwise.

       SSLEAY_BUILT_ON
           The date of the build process in the form "built on: ..." if avail-
           able or "built on: date not available" otherwise.

       SSLEAY_PLATFORM
           The "Configure" target of the library build in the form "platform:
           ..."  if available or "platform: information not available" other-
           wise.

       SSLEAY_DIR
           The "OPENSSLDIR" setting of the library build in the form
           "OPENSSLDIR: "...""  if available or "OPENSSLDIR: N/A" otherwise.

RETURN VALUES

       The following return values can occur:

       "not available"
           An invalid value for type was given.

       Pointer to constant string
           Textual description.

SEE ALSO

       crypto(3)

HISTORY

       SSLEAY_DIR was added in OpenSSL 0.9.7.

1.0.2t                            2019-09-10                 SSLeay_version(3)