X509_STORE_CTX_GET_ERROR(3SSL) | OpenSSL | X509_STORE_CTX_GET_ERROR(3SSL) |
X509_STORE_CTX_get_error, X509_STORE_CTX_set_error, X509_STORE_CTX_get_error_depth, X509_STORE_CTX_set_error_depth, X509_STORE_CTX_get_current_cert, X509_STORE_CTX_set_current_cert, X509_STORE_CTX_get0_cert, X509_STORE_CTX_get1_chain, X509_verify_cert_error_string - get or set certificate verification status information
#include <openssl/x509.h> int X509_STORE_CTX_get_error(X509_STORE_CTX *ctx); void X509_STORE_CTX_set_error(X509_STORE_CTX *ctx, int s); int X509_STORE_CTX_get_error_depth(X509_STORE_CTX *ctx); void X509_STORE_CTX_set_error_depth(X509_STORE_CTX *ctx, int depth); X509 *X509_STORE_CTX_get_current_cert(X509_STORE_CTX *ctx); void X509_STORE_CTX_set_current_cert(X509_STORE_CTX *ctx, X509 *x); X509 *X509_STORE_CTX_get0_cert(X509_STORE_CTX *ctx); STACK_OF(X509) *X509_STORE_CTX_get1_chain(X509_STORE_CTX *ctx); const char *X509_verify_cert_error_string(long n);
These functions are typically called after X509_verify_cert() has indicated an error or in a verification callback to determine the nature of an error.
X509_STORE_CTX_get_error() returns the error code of ctx, see the ERROR CODES section for a full description of all error codes.
X509_STORE_CTX_set_error() sets the error code of ctx to s. For example it might be used in a verification callback to set an error based on additional checks.
X509_STORE_CTX_get_error_depth() returns the depth of the error. This is a nonnegative integer representing where in the certificate chain the error occurred. If it is zero it occurred in the end entity certificate, one if it is the certificate which signed the end entity certificate and so on.
X509_STORE_CTX_set_error_depth() sets the error depth. This can be used in combination with X509_STORE_CTX_set_error() to set the depth at which an error condition was detected.
X509_STORE_CTX_get_current_cert() returns the certificate in ctx which caused the error or NULL if no certificate is relevant.
X509_STORE_CTX_set_current_cert() sets the certificate x in ctx which caused the error. This value is not intended to remain valid for very long, and remains owned by the caller. It may be examined by a verification callback invoked to handle each error encountered during chain verification and is no longer required after such a callback. If a callback wishes the save the certificate for use after it returns, it needs to increment its reference count via X509_up_ref(3). Once such a saved certificate is no longer needed it can be freed with X509_free(3).
X509_STORE_CTX_get0_cert() retrieves an internal pointer to the certificate being verified by the ctx.
X509_STORE_CTX_get1_chain() returns a complete validate chain if a previous call to X509_verify_cert() is successful. If the call to X509_verify_cert() is not successful the returned chain may be incomplete or invalid. The returned chain persists after the ctx structure is freed, when it is no longer needed it should be free up using:
sk_X509_pop_free(chain, X509_free);
X509_verify_cert_error_string() returns a human readable error string for verification error n.
X509_STORE_CTX_get_error() returns X509_V_OK or an error code.
X509_STORE_CTX_get_error_depth() returns a nonnegative error depth.
X509_STORE_CTX_get_current_cert() returns the certificate which caused the error or NULL if no certificate is relevant to the error.
X509_verify_cert_error_string() returns a human readable error string for verification error n.
A list of error codes and messages is shown below. Some of the error codes are defined but currently never returned: these are described as "unused".
The above functions should be used instead of directly referencing the fields in the X509_VERIFY_CTX structure.
In versions of OpenSSL before 1.0 the current certificate returned by X509_STORE_CTX_get_current_cert() was never NULL. Applications should check the return value before printing out any debugging information relating to the current certificate.
If an unrecognised error code is passed to X509_verify_cert_error_string() the numerical value of the unknown code is returned in a static buffer. This is not thread safe but will never happen unless an invalid code is passed.
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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>.
2023-09-13 | 1.1.1w |