Manual Pages for UNIX Operating System command usage for man BN_CTX_free

OpenSSL                                      BN_CTX_new(3openssl)



NNNNAAAAMMMMEEEE
     BN_CTX_new, BN_CTX_init, BN_CTX_free - allocate and free
     BN_CTX structures

SSSSYYYYNNNNOOOOPPPPSSSSIIIISSSS
      #include 

      BN_CTX *BN_CTX_new(void);

      void BN_CTX_init(BN_CTX *c);

      void BN_CTX_free(BN_CTX *c);


DDDDEEEESSSSCCCCRRRRIIIIPPPPTTTTIIIIOOOONNNN
     A BBBBNNNN_CCCCTTTTXXXX is a structure that holds BBBBIIIIGGGGNNNNUUUUMMMM temporary
     variables used by library functions. Since dynamic memory
     allocation to create BBBBIIIIGGGGNNNNUUUUMMMMs is rather expensive when used
     in conjunction with repeated subroutine calls, the BBBBNNNN_CCCCTTTTXXXX
     structure is used.

     BN_CTX_new() allocates and initializes a BBBBNNNN_CCCCTTTTXXXX structure.
     BN_CTX_init() initializes an existing uninitialized BBBBNNNN_CCCCTTTTXXXX.

     BN_CTX_free() frees the components of the BBBBNNNN_CCCCTTTTXXXX, and if it
     was created by BN_CTX_new(), also the structure itself.  If
     BN_CTX_start(3) has been used on the BBBBNNNN_CCCCTTTTXXXX, BN_CTX_end(3)
     must be called before the BBBBNNNN_CCCCTTTTXXXX may be freed by
     BN_CTX_free().

RRRREEEETTTTUUUURRRRNNNN VVVVAAAALLLLUUUUEEEESSSS
     BN_CTX_new() returns a pointer to the BBBBNNNN_CCCCTTTTXXXX. If the
     allocation fails, it returns NNNNUUUULLLLLLLL and sets an error code
     that can be obtained by ERR_get_error(3).

     BN_CTX_init() and BN_CTX_free() have no return values.

SSSSEEEEEEEE AAAALLLLSSSSOOOO
     bn(3), ERR_get_error(3), BN_add(3), BN_CTX_start(3)

HHHHIIIISSSSTTTTOOOORRRRYYYY
     BN_CTX_new() and BN_CTX_free() are available in all versions
     on SSLeay and OpenSSL. BN_CTX_init() was added in SSLeay
     0.9.1b.











25/Sep/2002            Last change: 0.9.8o                      1






OpenSSL                                      BN_CTX_new(3openssl)























































25/Sep/2002            Last change: 0.9.8o                      2