diff --git a/doc/ssl/SSL_CTX_set_mode.pod b/doc/ssl/SSL_CTX_set_mode.pod new file mode 100644 index 0000000000..9a035bb4d1 --- /dev/null +++ b/doc/ssl/SSL_CTX_set_mode.pod @@ -0,0 +1,78 @@ +=pod + +=head1 NAME + +SSL_CTX_set_mode, SSL_set_mode, SSL_CTX_get_mode, SSL_get_mode - manipulate SSL engine mode + +=head1 SYNOPSIS + + #include + + 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); + +=head1 DESCRIPTION + +SSL_CTX_set_mode() adds the mode set via bitmask in B to B. +Options already set before are not cleared. + +SSL_set_mode() adds the mode set via bitmask in B to B. +Options already set before are not cleared. + +SSL_CTX_get_mode() returns the mode set for B. + +SSL_get_mode() returns the mode set for B. + +=head1 NOTES + +The following mode changes are available: + +=over 4 + +=item 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. + +=item 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(). + +=item SSL_MODE_AUTO_RETRY + +Never bother the application with retries if the transport is blocking. +If a renegotiation take place during normal operation, a +L or L 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. + +=back + +=head1 RETURN VALUES + +SSL_CTX_set_mode() and SSL_set_mode() return the new mode bitmask +after adding B. + +SSL_CTX_get_mode() and SSL_get_mode() return the current bitmask. + +=head1 SEE ALSO + +L, L, L + +=head1 HISTORY + +SSL_MODE_AUTO_RETRY as been added in OpenSSL 0.9.6. + +=cut