Install the callback‐ctrl function on a custom BIO_METHOD.

Synopsis

Declared in <openssl/bio.h>

int
BIO_meth_set_callback_ctrl(
    BIO_METHOD* biom,
    long(* callback_ctrl)(BIO*, int, BIO_info_cb*));

Return Value

1 on success, or 0 on failure.

Parameters

Name

Description

biom

Method object to update.

callback_ctrl

Function invoked for BIO_callback_ctrl()‐style commands.

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