gnutls_global_init(3) [centos man page]

gnutls_global_init(3)						      gnutls						     gnutls_global_init(3)

NAME

       gnutls_global_init - API function

SYNOPSIS

       #include <gnutls/gnutls.h>

       int gnutls_global_init( void);

ARGUMENTS

	void

DESCRIPTION

       This function initializes the global data to defaults.  In order to free resources you may call gnutls_global_deinit() when gnutls usage is
       no longer needed.

       Note that this function will also initialize the underlying crypto backend, if it has not been initialized before.

       This function increments a global counter, so that gnutls_global_deinit() only releases resources when it has been called as many times	as
       gnutls_global_init().   This  is  useful  when GnuTLS is used by more than one library in an application.  This function can be called many
       times, but will only do something the first time.

       Note!  This function is not thread safe.  If two threads call this function simultaneously, they can cause  a  race  between  checking  the
       global counter and incrementing it, causing both threads to execute the library initialization code.  That would lead to a memory leak.	To
       handle this, your application could invoke this function after aquiring a thread mutex.	To ignore the potential memory	leak  is  also	an
       option.

RETURNS

       On success, GNUTLS_E_SUCCESS (0) is returned, otherwise a negative error code is returned.

REPORTING BUGS

       Report bugs to <bug-gnutls@gnu.org>.
       General guidelines for reporting bugs: http://www.gnu.org/gethelp/
       GnuTLS home page: http://www.gnu.org/software/gnutls/

COPYRIGHT

       Copyright (C) 2012 Free Software Foundation, Inc..
       Copying	and  distribution  of  this file, with or without modification, are permitted in any medium without royalty provided the copyright
       notice and this notice are preserved.

SEE ALSO

       The full documentation for gnutls is maintained as a Texinfo manual.  If the info and gnutls programs are properly installed at your  site,
       the command

	      info gnutls

       should give you access to the complete manual.  As an alternative you may obtain the manual from:

	      http://www.gnu.org/software/gnutls/manual/

gnutls								      3.1.15						     gnutls_global_init(3)

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gnutls_crypto_single_cipher_register2(3)			      gnutls				  gnutls_crypto_single_cipher_register2(3)

NAME

       gnutls_crypto_single_cipher_register2 - register a cipher algorithm

SYNOPSIS

       #include <gnutls/gnutls.h>

       int  gnutls_crypto_single_cipher_register2(gnutls_cipher_algorithm_t algorithm, int priority, int version, gnutls_crypto_single_cipher_st *
       s);

ARGUMENTS

       gnutls_cipher_algorithm_t algorithm
		   is the gnutls algorithm identifier

       int priority
		   is the priority of the algorithm

       int version should be set to GNUTLS_CRYPTO_API_VERSION

       gnutls_crypto_single_cipher_st * s
		   is a structure holding new cipher's data

DESCRIPTION

       This function will register a cipher algorithm to be used by gnutls.  Any algorithm registered will override the included algorithms and by
       convention kernel implemented algorithms have priority of 90.  The algorithm with the lowest priority will be used by gnutls.

       This function should be called before gnutls_global_init().

       For simplicity you can use the convenience gnutls_crypto_single_cipher_register() macro.

RETURNS

       GNUTLS_E_SUCCESS on success, otherwise an error.

SINCE

       2.6.0

REPORTING BUGS

       Report	bugs   to   <bug-gnutls@gnu.org>.   GnuTLS  home  page:  http://www.gnu.org/software/gnutls/  General  help  using  GNU  software:
       http://www.gnu.org/gethelp/

COPYRIGHT

       Copyright (C) 2008 Free Software Foundation.
       Copying and distribution of this file, with or without modification, are permitted in any medium without  royalty  provided  the  copyright
       notice and this notice are preserved.

SEE ALSO

       The  full documentation for gnutls is maintained as a Texinfo manual.  If the info and gnutls programs are properly installed at your site,
       the command

	      info gnutls

       should give you access to the complete manual.

gnutls								       2.8.6				  gnutls_crypto_single_cipher_register2(3)

Linux and UNIX Man Pages

gnutls_global_init(3) [centos man page]

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