SSL_CTX_set_quiet_shutdown man page on DigitalUNIX
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SSL_CTX_set_quiet_shutdown(3) SSL_CTX_set_quiet_shutdown(3)
NAME
SSL_CTX_set_quiet_shutdown - Manipulate shutdown behavior
SYNOPSIS
#include <openssl/ssl.h>
void SSL_CTX_set_quiet_shutdown(
SSL_CTX *ctx,
int mode ); int SSL_CTX_get_quiet_shutdown(
SSL_CTX *ctx ); void SSL_set_quiet_shutdown(
SSL *ssl,
int mode ); int SSL_get_quiet_shutdown(
SSL *ssl );
DESCRIPTION
The SSL_CTX_set_quiet_shutdown() function sets the quiet shutdown flag
for ctx to be mode. SSL objects created from ctx inherit the mode
valid at the time SSL_new(3) is called. mode may be 0 or 1.
SSL_CTX_get_quiet_shutdown() returns the "quiet shutdown" setting of
ctx. SSL_set_quiet_shutdown() sets the "quiet shutdown" flag for ssl
to be mode. The setting stays valid until ssl is removed with
SSL_free() or SSL_set_quiet_shutdown() is called again. It is not
changed when SSL_clear() is called. mode may be 0 or 1.
SSL_get_quiet_shutdown() returns the "quiet shutdown" setting of ssl.
NOTES
Normally when an SSL connection is finished, the parties must send out
"close notify" alert messages using the SSL_shutdown() function for a
clean shutdown. When setting the "quiet shutdown" flag to 1, SSL_shut‐
down() will set the internal flags to SSL_SENT_SHUT‐
DOWN|SSL_RECEIVED_SHUTDOWN. (The SSL_shutdown() function then behaves
like SSL_set_shutdown() called with SSL_SENT_SHUT‐
DOWN|SSL_RECEIVED_SHUTDOWN.) The session is thus considered to be
shutdown, but no "close notify" alert is sent to the peer. This behav‐
ior violates the TLS standard. The default is normal shutdown behavior
as described by the TLS standard.
RETURN VALUES
SSL_CTX_set_quiet_shutdown() and SSL_set_quiet_shutdown() do not return
diagnostic information. SSL_CTX_get_quiet_shutdown() and
SSL_get_quiet_shutdown() return the current setting.
SEE ALSO
Functions: ssl(3), SSL_shutdown(3), SSL_set_shutdown(3), SSL_new(3),
SSL_clear(3), SSL_free(3), SSL_CTX_get_quiet_shutdown(3),
SSL_get_quiet_shutdown(3), SSL_set_quiet_shutdown(3)
SSL_CTX_set_quiet_shutdown(3)
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