Decode an X.509v3 extension value from DER.

Synopsis

Declared in <openssl/x509v3.h>

typedef void*(* X509V3_EXT_D2I)(void*, unsigned char const**, long);

Return Value

Extension‐specific value, or NULL on error.

Parameters

Name

Description

ext

Optional existing extension value to reuse, or NULL to allocate.

in

Address of a pointer to the DER input; advanced past the decoded value.

len

Number of bytes available at *`in.`

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