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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.
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.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 "\s-1SSLEAY_VERSION\s0" 4
.IX Item "SSLEAY_VERSION"
The version of the OpenSSL library including the release date.
.IP "\s-1SSLEAY_CFLAGS\s0" 4
.IX Item "SSLEAY_CFLAGS"
The compiler flags set for the compilation process in the form
\&\*(L"compiler: ...\*(R"  if available or \*(L"compiler: information not available\*(R"
otherwise.
.IP "\s-1SSLEAY_BUILT_ON\s0" 4
.IX Item "SSLEAY_BUILT_ON"
The date of the build process in the form \*(L"built on: ...\*(R" if available
or \*(L"built on: date not available\*(R" otherwise.
.IP "\s-1SSLEAY_PLATFORM\s0" 4
.IX Item "SSLEAY_PLATFORM"
The \*(L"Configure\*(R" target of the library build in the form \*(L"platform: ...\*(R"
if available or \*(L"platform: information not available\*(R" otherwise.
.IP "\s-1SSLEAY_DIR\s0" 4
.IX Item "SSLEAY_DIR"
The \*(L"\s-1OPENSSLDIR\*(R"\s0 setting of the library build in the form \*(L"\s-1OPENSSLDIR: \*(R"..."\*(L"\s0
if available or \*(R"\s-1OPENSSLDIR: N/A"\s0 otherwise.
.SH "RETURN VALUES"
.IX Header "RETURN VALUES"
The following return values can occur:
.ie n .IP """not available""" 4
.el .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"
\&\fB\s-1SSLEAY_DIR\s0\fR was added in OpenSSL 0.9.7.