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.\" ========================================================================
.\"
.IX Title "X509_STORE_set_verify_cb_func 3"
.TH X509_STORE_set_verify_cb_func 3 "2019-12-20" "1.0.2u" "OpenSSL"
.\" For nroff, turn off justification.  Always turn off hyphenation; it makes
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.if n .ad l
.nh
.SH "NAME"
X509_STORE_set_verify_cb_func, X509_STORE_set_verify_cb \- set verification callback
.SH "SYNOPSIS"
.IX Header "SYNOPSIS"
.Vb 1
\& #include <openssl/x509_vfy.h>
\&
\& void X509_STORE_set_verify_cb(X509_STORE *st,
\&                                int (*verify_cb)(int ok, X509_STORE_CTX *ctx));
\&
\& void X509_STORE_set_verify_cb_func(X509_STORE *st,
\&                                int (*verify_cb)(int ok, X509_STORE_CTX *ctx));
.Ve
.SH "DESCRIPTION"
.IX Header "DESCRIPTION"
\&\fBX509_STORE_set_verify_cb()\fR sets the verification callback of \fBctx\fR to
\&\fBverify_cb\fR overwriting any existing callback.
.PP
\&\fBX509_STORE_set_verify_cb_func()\fR also sets the verification callback but it
is implemented as a macro.
.SH "NOTES"
.IX Header "NOTES"
The verification callback from an \fBX509_STORE\fR is inherited by 
the corresponding \fBX509_STORE_CTX\fR structure when it is initialized. This can
be used to set the verification callback when the \fBX509_STORE_CTX\fR is 
otherwise inaccessible (for example during S/MIME verification).
.SH "BUGS"
.IX Header "BUGS"
The macro version of this function was the only one available before 
OpenSSL 1.0.0.
.SH "RETURN VALUES"
.IX Header "RETURN VALUES"
\&\fBX509_STORE_set_verify_cb()\fR and \fBX509_STORE_set_verify_cb_func()\fR do not return
a value.
.SH "SEE ALSO"
.IX Header "SEE ALSO"
\&\fBX509_STORE_CTX_set_verify_cb\fR\|(3)
\&\fBCMS_verify\fR\|(3)
.SH "HISTORY"
.IX Header "HISTORY"
\&\fBX509_STORE_set_verify_cb_func()\fR is available in all versions of SSLeay and
OpenSSL.
.PP
\&\fBX509_STORE_set_verify_cb()\fR was added to OpenSSL 1.0.0.

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