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SSL_set_mode (3)
  • >> SSL_set_mode (3) ( Разные man: Библиотечные вызовы )
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    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 complete 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 misconception 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 returning 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.


     

    Index

    NAME
    SYNOPSIS
    DESCRIPTION
    NOTES
    RETURN VALUES
    SEE ALSO
    HISTORY


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