Upgrade to OpenSSL 0.9.8h.
[dragonfly.git] / secure / lib / libssl / man / SSL_library_init.3
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129.\" ========================================================================
130.\"
131.IX Title "SSL_library_init 3"
aac4ff6f 132.TH SSL_library_init 3 "2008-09-06" "0.9.8h" "OpenSSL"
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133.SH "NAME"
134SSL_library_init, OpenSSL_add_ssl_algorithms, SSLeay_add_ssl_algorithms
e056f0e0 135\&\- initialize SSL library by registering algorithms
984263bc 136.SH "SYNOPSIS"
e056f0e0 137.IX Header "SYNOPSIS"
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138.Vb 1
139\& #include <openssl/ssl.h>
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140.Ve
141.PP
142.Vb 3
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143\& int SSL_library_init(void);
144\& #define OpenSSL_add_ssl_algorithms() SSL_library_init()
145\& #define SSLeay_add_ssl_algorithms() SSL_library_init()
146.Ve
147.SH "DESCRIPTION"
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148.IX Header "DESCRIPTION"
149\&\fISSL_library_init()\fR registers the available ciphers and digests.
984263bc 150.PP
e056f0e0 151\&\fIOpenSSL_add_ssl_algorithms()\fR and \fISSLeay_add_ssl_algorithms()\fR are synonyms
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152for \fISSL_library_init()\fR.
153.SH "NOTES"
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154.IX Header "NOTES"
155\&\fISSL_library_init()\fR must be called before any other action takes place.
984263bc 156.SH "WARNING"
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157.IX Header "WARNING"
158\&\fISSL_library_init()\fR only registers ciphers. Another important initialization
159is the seeding of the \s-1PRNG\s0 (Pseudo Random Number Generator), which has to
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160be performed separately.
161.SH "EXAMPLES"
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162.IX Header "EXAMPLES"
163A typical \s-1TLS/SSL\s0 application will start with the library initialization,
164will provide readable error messages and will seed the \s-1PRNG\s0.
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165.PP
166.Vb 3
167\& SSL_load_error_strings(); /* readable error messages */
168\& SSL_library_init(); /* initialize library */
e056f0e0 169\& actions_to_seed_PRNG();
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170.Ve
171.SH "RETURN VALUES"
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172.IX Header "RETURN VALUES"
173\&\fISSL_library_init()\fR always returns \*(L"1\*(R", so it is safe to discard the return
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174value.
175.SH "SEE ALSO"
a7d27d5a 176.IX Header "SEE ALSO"
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177\&\fIssl\fR\|(3), \fISSL_load_error_strings\fR\|(3),
178\&\fIRAND_add\fR\|(3)