CONF_MODULES_FREE(3) | Library Functions Manual | CONF_MODULES_FREE(3)

# NAME

`CONF_modules_free`, `CONF_modules_finish`, `CONF_modules_unload` — OpenSSL configuration cleanup functions

# SYNOPSIS

library “libcrypto”
`#include <openssl/conf.h>`

void
`CONF_modules_free`(void);

void
`CONF_modules_finish`(void);

void
`CONF_modules_unload`(int all);

# DESCRIPTION

`CONF_modules_free`() closes down and frees up all memory allocated by all configuration modules. Normally applications will only call this function at application exit to tidy up any configuration performed.

`CONF_modules_finish`() calls the configuration finish handler of each configuration module to free up any configuration that module may have performed.

`CONF_modules_unload`() finishes and unloads configuration modules. If all is set to 1, the builtin modules will be unloaded as well.

# SEE ALSO

CONF_modules_load_file(3), OPENSSL_config(3)

# HISTORY

`CONF_modules_free`(), `CONF_modules_finish`(), and `CONF_modules_unload`() first appeared in OpenSSL 0.9.7 and have been available since OpenBSD 3.2.

June 8, 2025 | Debian