X509v3_get_ext_count, X509v3_get_ext, X509v3_get_ext_by_NID, X509v3_get_ext_by_OBJ, X509v3_get_ext_by_critical, X509v3_delete_ext, X509v3_add_ext, X509_get_ext_count, X509_get_ext, X509_get_ext_by_NID, X509_get_ext_by_OBJ, X509_get_ext_by_critical, X509_delete_ext, X509_add_ext, X509_CRL_get_ext_count, X509_CRL_get_ext, X509_CRL_get_ext_by_NID, X509_CRL_get_ext_by_OBJ, X509_CRL_get_ext_by_critical, X509_CRL_delete_ext, X509_CRL_add_ext, X509_REVOKED_get_ext_count, X509_REVOKED_get_ext, X509_REVOKED_get_ext_by_NID, X509_REVOKED_get_ext_by_OBJ, X509_REVOKED_get_ext_by_critical, X509_REVOKED_delete_ext, X509_REVOKED_add_ext - extension stack utility functions
#include <openssl/x509.h>
int X509v3_get_ext_count(const STACK_OF(X509_EXTENSION) *x); X509_EXTENSION *X509v3_get_ext(const STACK_OF(X509_EXTENSION) *x, int loc);
int X509v3_get_ext_by_NID(const STACK_OF(X509_EXTENSION) *x, int nid, int lastpos); int X509v3_get_ext_by_OBJ(const STACK_OF(X509_EXTENSION) *x, const ASN1_OBJECT *obj, int lastpos); int X509v3_get_ext_by_critical(const STACK_OF(X509_EXTENSION) *x, int crit, int lastpos); X509_EXTENSION *X509v3_delete_ext(STACK_OF(X509_EXTENSION) *x, int loc); STACK_OF(X509_EXTENSION) *X509v3_add_ext(STACK_OF(X509_EXTENSION) **x, X509_EXTENSION *ex, int loc);
int X509_get_ext_count(const X509 *x); X509_EXTENSION *X509_get_ext(const X509 *x, int loc); int X509_get_ext_by_NID(const X509 *x, int nid, int lastpos); int X509_get_ext_by_OBJ(const X509 *x, const ASN1_OBJECT *obj, int lastpos); int X509_get_ext_by_critical(const X509 *x, int crit, int lastpos); X509_EXTENSION *X509_delete_ext(X509 *x, int loc); int X509_add_ext(X509 *x, X509_EXTENSION *ex, int loc);
int X509_CRL_get_ext_count(const X509_CRL *x); X509_EXTENSION *X509_CRL_get_ext(const X509_CRL *x, int loc); int X509_CRL_get_ext_by_NID(const X509_CRL *x, int nid, int lastpos); int X509_CRL_get_ext_by_OBJ(const X509_CRL *x, const ASN1_OBJECT *obj, int lastpos); int X509_CRL_get_ext_by_critical(const X509_CRL *x, int crit, int lastpos); X509_EXTENSION *X509_CRL_delete_ext(X509_CRL *x, int loc); int X509_CRL_add_ext(X509_CRL *x, X509_EXTENSION *ex, int loc);
int X509_REVOKED_get_ext_count(const X509_REVOKED *x); X509_EXTENSION *X509_REVOKED_get_ext(const X509_REVOKED *x, int loc); int X509_REVOKED_get_ext_by_NID(const X509_REVOKED *x, int nid, int lastpos); int X509_REVOKED_get_ext_by_OBJ(const X509_REVOKED *x, const ASN1_OBJECT *obj, int lastpos); int X509_REVOKED_get_ext_by_critical(const X509_REVOKED *x, int crit, int lastpos); X509_EXTENSION *X509_REVOKED_delete_ext(X509_REVOKED *x, int loc); int X509_REVOKED_add_ext(X509_REVOKED *x, X509_EXTENSION *ex, int loc);
X509v3_get_ext_count()
retrieves the number of extensions in x.
X509v3_get_ext()
retrieves extension loc from x. The index loc
can take any value from 0 to X509_get_ext_count(x)
- 1. The returned
extension is an internal pointer which must not be freed up by the
application.
X509v3_get_ext_by_NID()
and X509v3_get_ext_by_OBJ()
look for an extension
with nid or obj from extension stack x. The search starts from the
extension after lastpos or from the beginning if <lastpos> is -1. If
the extension is found its index is returned otherwise -1 is returned.
X509v3_get_ext_by_critical()
is similar to X509v3_get_ext_by_NID()
except it
looks for an extension of criticality crit. A zero value for crit
looks for a non-critical extension a non-zero value looks for a critical
extension.
X509v3_delete_ext()
deletes the extension with index loc from x. The
deleted extension is returned and must be freed by the caller. If loc
is in invalid index value NULL is returned.
X509v3_add_ext()
adds extension ex to stack *x at position loc. If
loc is -1 the new extension is added to the end. If *x is NULL
a new stack will be allocated. The passed extension ex is duplicated
internally so it must be freed after use.
X509_get_ext_count(), X509_get_ext(), X509_get_ext_by_NID(),
X509_get_ext_by_OBJ(), X509_get_ext_by_critical(), X509_delete_ext()
and X509_add_ext()
operate on the extensions of certificate x they are
otherwise identical to the X509v3 functions.
X509_CRL_get_ext_count(), X509_CRL_get_ext(), X509_CRL_get_ext_by_NID(),
X509_CRL_get_ext_by_OBJ(), X509_CRL_get_ext_by_critical(),
X509_CRL_delete_ext()
and X509_CRL_add_ext()
operate on the extensions of
CRL x they are otherwise identical to the X509v3 functions.
X509_REVOKED_get_ext_count(), X509_REVOKED_get_ext(),
X509_REVOKED_get_ext_by_NID(), X509_REVOKED_get_ext_by_OBJ(),
X509_REVOKED_get_ext_by_critical(), X509_REVOKED_delete_ext()
and
X509_REVOKED_add_ext()
operate on the extensions of CRL entry x
they are otherwise identical to the X509v3 functions.
These functions are used to examine stacks of extensions directly. Many
applications will want to parse or encode and add an extension: they should
use the extension encode and decode functions instead such as
X509_add1_ext_i2d()
and X509_get_ext_d2i().
Extension indices start from zero, so a zero index return value is not an error. These search functions start from the extension after the lastpos parameter so it should initially be set to -1, if it is set to zero the initial extension will not be checked.
X509v3_get_ext_count()
returns the extension count.
X509v3_get_ext(), X509v3_delete_ext()
and X509_delete_ext()
return an
X509_EXTENSION pointer or NULL if an error occurs.
X509v3_get_ext_by_NID()
X509v3_get_ext_by_OBJ()
and
X509v3_get_ext_by_critical()
return the an extension index or -1 if an
error occurs.
X509v3_add_ext()
returns a stack of extensions or NULL on error.
X509_add_ext()
returns 1 on success and 0 on error.
X509V3_get_d2i(3)
Copyright 2015-2018 The OpenSSL Project Authors. All Rights Reserved.
Licensed under the OpenSSL license (the ``License''). You may not use this file except in compliance with the License. You can obtain a copy in the file LICENSE in the source distribution or at https://www.openssl.org/source/license.html.