Set the ctrl callback on a custom EVP_MD method (deprecated).

Synopsis

Declared in <openssl/evp.h>

[[deprecated]]
int
EVP_MD_meth_set_ctrl(
    EVP_MD* md,
    int(* ctrl)(EVP_MD_CTX*, int, int, void*));
Warning

Deprecated. Use of this entity is allowed but discouraged.

Return Value

1 on success, or 0 on failure.

Parameters

Name

Description

md

Digest method being constructed.

ctrl

Callback handling EVP_MD_CTRL_* commands for digest contexts.

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