CRYPTO_set_ex_data - internal application specific data functions
#include <openssl/crypto.h> int CRYPTO_set_ex_data(CRYPTO_EX_DATA *r, int idx, void *arg); void *CRYPTO_get_ex_data(CRYPTO_EX_DATA *r, int idx);
OpenSSL CRYPTO_set_ex_data(3openssl) NAME CRYPTO_set_ex_data, CRYPTO_get_ex_data - internal application specific data functions SYNOPSIS #include <openssl/crypto.h> int CRYPTO_set_ex_data(CRYPTO_EX_DATA *r, int idx, void *arg); void *CRYPTO_get_ex_data(CRYPTO_EX_DATA *r, int idx); DESCRIPTION Several OpenSSL structures can have application specific data attached to them. These functions are used internally by OpenSSL to manipulate application specific data attached to a specific structure. These functions should only be used by applications to manipulate CRYPTO_EX_DATA structures passed to the new_func(), free_func() and dup_func() callbacks: as passed to RSA_get_ex_new_index() for example. CRYPTO_set_ex_data() is used to set application specific data, the data is supplied in the arg parameter and its precise meaning is up to the application. CRYPTO_get_ex_data() is used to retrieve application specific data. The data is returned to the application, this will be the same value as supplied to a previous CRYPTO_set_ex_data() call. RETURN VALUES CRYPTO_set_ex_data() returns 1 on success or 0 on failure. CRYPTO_get_ex_data() returns the application data or 0 on failure. 0 may also be valid application data but currently it can only fail if given an invalid idx parameter. On failure an error code can be obtained from ERR_get_error(3). ATTRIBUTES See attributes(7) for descriptions of the following attributes: +---------------+--------------------------+ |ATTRIBUTE TYPE | ATTRIBUTE VALUE | +---------------+--------------------------+ |Availability | library/security/openssl | +---------------+--------------------------+ |Stability | Pass-through uncommitted | +---------------+--------------------------+ SEE ALSO RSA_get_ex_new_index(3), DSA_get_ex_new_index(3), DH_get_ex_new_index(3) HISTORY CRYPTO_set_ex_data() and CRYPTO_get_ex_data() have been available since SSLeay 0.9.0. NOTES Source code for open source software components in Oracle Solaris can be found at https://www.oracle.com/downloads/opensource/solaris-source- code-downloads.html. This software was built from source available at https://github.com/oracle/solaris-userland. The original community source was downloaded from https://www.openssl.org/source/openssl-1.0.2ze.tar.gz. Further information about this software can be found on the open source community website at https://www.openssl.org/. 1.0.2ze 2022-05-03 CRYPTO_set_ex_data(3openssl)