Update for OpenSSL 0.9.7. No assembler code at the moment. This

will follow.

1 files changed, 208 insertions, 0 deletions

diff --git a/secure/lib/libssl/man/SSL_CTX_set_cert_verify_callback.3 b/secure/lib/libssl/man/SSL_CTX_set_cert_verify_callback.3
new file mode 100644
index 0000000..fbba61d
--- /dev/null
+++ b/secure/lib/libssl/man/SSL_CTX_set_cert_verify_callback.3
@@ -0,0 +1,208 @@
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+.\" ======================================================================
+.\"
+.IX Title "SSL_CTX_set_cert_verify_callback 3"
+.TH SSL_CTX_set_cert_verify_callback 3 "0.9.7" "2003-01-13" "OpenSSL"
+.UC
+.SH "NAME"
+SSL_CTX_set_cert_verify_callback \- set peer certificate verification procedure
+.SH "SYNOPSIS"
+.IX Header "SYNOPSIS"
+.Vb 1
+\& #include <openssl/ssl.h>
+.Ve
+.Vb 1
+\& void SSL_CTX_set_cert_verify_callback(SSL_CTX *ctx, int (*callback)(X509_STORE_CTX *,void *), void *arg);
+.Ve
+.SH "DESCRIPTION"
+.IX Header "DESCRIPTION"
+\&\fISSL_CTX_set_cert_verify_callback()\fR sets the verification callback function for
+\&\fIctx\fR. \s-1SSL\s0 objects that are created from \fIctx\fR inherit the setting valid at
+the time when SSL_new(3) is called.
+.SH "NOTES"
+.IX Header "NOTES"
+Whenever a certificate is verified during a \s-1SSL/TLS\s0 handshake, a verification
+function is called. If the application does not explicitly specify a
+verification callback function, the built-in verification function is used.
+If a verification callback \fIcallback\fR is specified via
+\&\fISSL_CTX_set_cert_verify_callback()\fR, the supplied callback function is called
+instead. By setting \fIcallback\fR to \s-1NULL\s0, the default behaviour is restored.
+.PP
+When the verification must be performed, \fIcallback\fR will be called with
+the arguments callback(X509_STORE_CTX *x509_store_ctx, void *arg). The 
+argument \fIarg\fR is specified by the application when setting \fIcallback\fR.
+.PP
+\&\fIcallback\fR should return 1 to indicate verification success and 0 to
+indicate verification failure. If \s-1SSL_VERIFY_PEER\s0 is set and \fIcallback\fR
+returns 0, the handshake will fail. As the verification procedure may
+allow to continue the connection in case of failure (by always returning 1)
+the verification result must be set in any case using the \fBerror\fR
+member of \fIx509_store_ctx\fR so that the calling application will be informed
+about the detailed result of the verification procedure! 
+.PP
+Within \fIx509_store_ctx\fR, \fIcallback\fR has access to the \fIverify_callback\fR
+function set using SSL_CTX_set_verify(3).
+.SH "WARNINGS"
+.IX Header "WARNINGS"
+Do not mix the verification callback described in this function with the
+\&\fBverify_callback\fR function called during the verification process. The
+latter is set using the SSL_CTX_set_verify(3)
+family of functions.
+.PP
+Providing a complete verification procedure including certificate purpose
+settings etc is a complex task. The built-in procedure is quite powerful
+and in most cases it should be sufficient to modify its behaviour using
+the \fBverify_callback\fR function.
+.SH "BUGS"
+.IX Header "BUGS"
+.SH "RETURN VALUES"
+.IX Header "RETURN VALUES"
+\&\fISSL_CTX_set_cert_verify_callback()\fR does not provide diagnostic information.
+.SH "SEE ALSO"
+.IX Header "SEE ALSO"
+ssl(3), SSL_CTX_set_verify(3),
+SSL_get_verify_result(3),
+SSL_CTX_load_verify_locations(3)
+.SH "HISTORY"
+.IX Header "HISTORY"
+Previous to OpenSSL 0.9.7, the \fIarg\fR argument to \fBSSL_CTX_set_cert_verify_callback\fR
+was ignored, and \fIcallback\fR was called simply as
+ int (*callback)(X509_STORE_CTX *)
+To compile software written for previous versions of OpenSSL, a dummy
+argument will have to be added to \fIcallback\fR.