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GNU/Linux man pages

Livre :
Expressions régulières,
Syntaxe et mise en oeuvre :

ISBN : 978-2-7460-9712-4
EAN : 9782746097124
(Editions ENI)

GNU/Linux

CentOS 2.1AS

(Slurm)

SSL_get_ex_data_X509_STORE_CTX_idx(3ssl)


SSL_get_ex_data_X509_STORE_CTX_idx

SSL_get_ex_data_X509_STORE_CTX_idx

NAME
SYNOPSIS
DESCRIPTION
NOTES
RETURN VALUES
EXAMPLES
SEE ALSO

NAME

SSL_get_ex_data_X509_STORE_CTX_idx − get ex_data index to access SSL structure from X509_STORE_CTX

SYNOPSIS

 #include <openssl/ssl.h>
 int SSL_get_ex_data_X509_STORE_CTX_idx(void);

DESCRIPTION

SSL_get_ex_data_X509_STORE_CTX_idx() returns the index number under which the pointer to the SSL object is stored into the X509_STORE_CTX object.

NOTES

Whenever a X509_STORE_CTX object is created for the verification of the peers certificate during a handshake, a pointer to the SSL object is stored into the X509_STORE_CTX object to identify the connection affected. To retrieve this pointer the X509_STORE_CTX_get_ex_data() function can be used with the correct index. This index is globally the same for all X509_STORE_CTX objects and can be retrieved using SSL_get_ex_data_X509_STORE_CTX_idx(). The index value is set when SSL_get_ex_data_X509_STORE_CTX_idx() is first called either by the application program directly or indirectly during other SSL setup functions or during the handshake.

The value depends on other index values defined for X509_STORE_CTX objects before the SSL index is created.

RETURN VALUES

>=0

The index value to access the pointer.

<0

An error occurred, check the error stack for a detailed error message.

EXAMPLES

The index returned from SSL_get_ex_data_X509_STORE_CTX_idx() allows to access the SSL object for the connection to be accessed during the verify_callback() when checking the peers certificate. Please check the example in SSL_CTX_set_verify(3),

SEE ALSO

ssl(3), SSL_CTX_set_verify(3), CRYPTO_set_ex_data(3)



SSL_get_ex_data_X509_STORE_CTX_idx(3ssl)