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.\" ========================================================================
.\"
.IX Title "SSLeay_version 3"
.TH SSLeay_version 3 2019-12-20 1.0.2u OpenSSL
.\" For nroff, turn off justification.  Always turn off hyphenation; it makes
.\" way too many mistakes in technical documents.
.if n .ad l
.nh
.SH NAME
SSLeay_version \- retrieve version/build information about OpenSSL library
.SH SYNOPSIS
.IX Header "SYNOPSIS"
.Vb 1
\& #include <openssl/crypto.h>
\&
\& const char *SSLeay_version(int type);
.Ve
.SH DESCRIPTION
.IX Header "DESCRIPTION"
\&\fBSSLeay_version()\fR returns a pointer to a constant string describing the
version of the OpenSSL library or giving information about the library
build.
.PP
The following \fBtype\fR values are supported:
.IP SSLEAY_VERSION 4
.IX Item "SSLEAY_VERSION"
The version of the OpenSSL library including the release date.
.IP SSLEAY_CFLAGS 4
.IX Item "SSLEAY_CFLAGS"
The compiler flags set for the compilation process in the form
"compiler: ..."  if available or "compiler: information not available"
otherwise.
.IP SSLEAY_BUILT_ON 4
.IX Item "SSLEAY_BUILT_ON"
The date of the build process in the form "built on: ..." if available
or "built on: date not available" otherwise.
.IP SSLEAY_PLATFORM 4
.IX Item "SSLEAY_PLATFORM"
The "Configure" target of the library build in the form "platform: ..."
if available or "platform: information not available" otherwise.
.IP SSLEAY_DIR 4
.IX Item "SSLEAY_DIR"
The "OPENSSLDIR" setting of the library build in the form "OPENSSLDIR: "...""
if available or "OPENSSLDIR: N/A" otherwise.
.SH "RETURN VALUES"
.IX Header "RETURN VALUES"
The following return values can occur:
.IP """not available""" 4
.IX Item """not available"""
An invalid value for \fBtype\fR was given.
.IP "Pointer to constant string" 4
.IX Item "Pointer to constant string"
Textual description.
.SH "SEE ALSO"
.IX Header "SEE ALSO"
\&\fBcrypto\fR\|(3)
.SH HISTORY
.IX Header "HISTORY"
\&\fBSSLEAY_DIR\fR was added in OpenSSL 0.9.7.