- NAME
- SYNOPSIS
- DESCRIPTION
- NOTES
- BUGS
- RETURN VALUES
- SEE ALSO
- HISTORY

# NAME

X509_STORE_set_verify_cb_func, X509_STORE_set_verify_cb - set verification callback

# SYNOPSIS

     #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));

# DESCRIPTION

`X509_STORE_set_verify_cb()` sets the verification callback of ctx to verify_cb overwriting any existing callback.

`X509_STORE_set_verify_cb_func()` also sets the verification callback but it is implemented as a macro.

# NOTES

The verification callback from an X509_STORE is inherited by the corresponding X509_STORE_CTX structure when it is initialized. This can be used to set the verification callback when the X509_STORE_CTX is otherwise inaccessible (for example during S/MIME verification).

# BUGS

The macro version of this function was the only one available before OpenSSL 1.0.0.

# RETURN VALUES

`X509_STORE_set_verify_cb()` and `X509_STORE_set_verify_cb_func()` do not return a value.

# SEE ALSO

X509_STORE_CTX_set_verify_cb CMS_verify

# HISTORY

`X509_STORE_set_verify_cb_func()` is available in all versions of SSLeay and OpenSSL.

`X509_STORE_set_verify_cb()` was added to OpenSSL 1.0.0.