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131 .IX Title "OPENSSL_VERSION_NUMBER 3"
132 .TH OPENSSL_VERSION_NUMBER 3 "2018-03-27" "1.0.2o" "OpenSSL"
133 .\" For nroff, turn off justification. Always turn off hyphenation; it makes
134 .\" way too many mistakes in technical documents.
138 OPENSSL_VERSION_NUMBER, SSLeay, SSLeay_version \- get OpenSSL version number
140 .IX Header "SYNOPSIS"
142 \& #include <openssl/opensslv.h>
143 \& #define OPENSSL_VERSION_NUMBER 0xnnnnnnnnnL
145 \& #include <openssl/crypto.h>
146 \& long SSLeay(void);
147 \& const char *SSLeay_version(int t);
150 .IX Header "DESCRIPTION"
151 \&\s-1OPENSSL_VERSION_NUMBER\s0 is a numeric release version identifier:
154 \& MNNFFPPS: major minor fix patch status
157 The status nibble has one of the values 0 for development, 1 to e for betas
158 1 to 14, and f for release.
163 \& 0x000906000 == 0.9.6 dev
164 \& 0x000906023 == 0.9.6b beta 3
165 \& 0x00090605f == 0.9.6e release
168 Versions prior to 0.9.3 have identifiers < 0x0930.
169 Versions between 0.9.3 and 0.9.5 had a version identifier with this
173 \& MMNNFFRBB major minor fix final beta/patch
179 \& 0x000904100 == 0.9.4 release
180 \& 0x000905000 == 0.9.5 dev
183 Version 0.9.5a had an interim interpretation that is like the current one,
184 except the patch level got the highest bit set, to keep continuity. The
185 number was therefore 0x0090581f.
187 For backward compatibility, \s-1SSLEAY_VERSION_NUMBER\s0 is also defined.
189 \&\fISSLeay()\fR returns this number. The return value can be compared to the
190 macro to make sure that the correct version of the library has been
191 loaded, especially when using DLLs on Windows systems.
193 \&\fISSLeay_version()\fR returns different strings depending on \fBt\fR:
194 .IP "\s-1SSLEAY_VERSION\s0" 4
195 .IX Item "SSLEAY_VERSION"
196 The text variant of the version number and the release date. For example,
197 \&\*(L"OpenSSL 0.9.5a 1 Apr 2000\*(R".
198 .IP "\s-1SSLEAY_CFLAGS\s0" 4
199 .IX Item "SSLEAY_CFLAGS"
200 The compiler flags set for the compilation process in the form
201 \&\*(L"compiler: ...\*(R" if available or \*(L"compiler: information not available\*(R"
203 .IP "\s-1SSLEAY_BUILT_ON\s0" 4
204 .IX Item "SSLEAY_BUILT_ON"
205 The date of the build process in the form \*(L"built on: ...\*(R" if available
206 or \*(L"built on: date not available\*(R" otherwise.
207 .IP "\s-1SSLEAY_PLATFORM\s0" 4
208 .IX Item "SSLEAY_PLATFORM"
209 The \*(L"Configure\*(R" target of the library build in the form \*(L"platform: ...\*(R"
210 if available or \*(L"platform: information not available\*(R" otherwise.
211 .IP "\s-1SSLEAY_DIR\s0" 4
212 .IX Item "SSLEAY_DIR"
213 The \*(L"\s-1OPENSSLDIR\*(R"\s0 setting of the library build in the form \*(L"\s-1OPENSSLDIR: \*(R"..."\*(L"\s0
214 if available or \*(R"\s-1OPENSSLDIR: N/A"\s0 otherwise.
216 For an unknown \fBt\fR, the text \*(L"not available\*(R" is returned.
218 .IX Header "RETURN VALUE"
221 .IX Header "SEE ALSO"
225 \&\fISSLeay()\fR and \s-1SSLEAY_VERSION_NUMBER\s0 are available in all versions of SSLeay and OpenSSL.
226 \&\s-1OPENSSL_VERSION_NUMBER\s0 is available in all versions of OpenSSL.
227 \&\fB\s-1SSLEAY_DIR\s0\fR was added in OpenSSL 0.9.7.