SSL_CTX_set_mode(3)         OpenSSL         SSL_CTX_set_mode(3)





NAME
       SSL_CTX_set_mode, SSL_set_mode, SSL_CTX_get_mode,
       SSL_get_mode - manipulate SSL engine mode

SYNOPSIS
        #include <openssl/ssl.h>

        long SSL_CTX_set_mode(SSL_CTX *ctx, long mode);
        long SSL_set_mode(SSL *ssl, long mode);

        long SSL_CTX_get_mode(SSL_CTX *ctx);
        long SSL_get_mode(SSL *ssl);

DESCRIPTION
       SSL_CTX_set_mode() adds the mode set via bitmask in mode
       to ctx.  Options already set before are not cleared.

       SSL_set_mode() adds the mode set via bitmask in mode to
       ssl.  Options already set before are not cleared.

       SSL_CTX_get_mode() returns the mode set for ctx.

       SSL_get_mode() returns the mode set for ssl.

NOTES
       The following mode changes are available:

       SSL_MODE_ENABLE_PARTIAL_WRITE
           Allow SSL_write(..., n) to return r with 0 < r < n
           (i.e. report success when just a single record has
           been written). When not set (the default),
           SSL_write() will only report success once the com-
           plete chunk was written.  Once SSL_write() returns
           with r, r bytes have been successfully written and
           the next call to SSL_write() must only send the n-r
           bytes left, imitating the behaviour of write().

       SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER
           Make it possible to retry SSL_write() with changed
           buffer location (the buffer contents must stay the
           same). This is not the default to avoid the miscon-
           ception that non-blocking SSL_write() behaves like
           non-blocking write().

       SSL_MODE_AUTO_RETRY
           Never bother the application with retries if the
           transport is blocking.  If a renegotiation take
           place during normal operation, a SSL_read(3) or
           SSL_write(3) would return with -1 and indicate the
           need to retry with SSL_ERROR_WANT_READ.  In a non-
           blocking environment applications must be prepared
           to handle incomplete read/write operations.  In a
           blocking environment, applications are not always
           prepared to deal with read/write operations return-
           ing without success report. The flag
           SSL_MODE_AUTO_RETRY will cause read/write operations
           to only return after the handshake and successful
           completion.

RETURN VALUES
       SSL_CTX_set_mode() and SSL_set_mode() return the new
       mode bitmask after adding mode.

       SSL_CTX_get_mode() and SSL_get_mode() return the current
       bitmask.

SEE ALSO
       ssl(3), SSL_read(3), SSL_write(3)

HISTORY
       SSL_MODE_AUTO_RETRY as been added in OpenSSL 0.9.6.



0.9.7c                     2001-07-11       SSL_CTX_set_mode(3)
