RSA Security 5 manual Int BDigestUpdate

		B_DigestUpdate
B_DigestUpdate
int B_DigestUpdate (
B_ALGORITHM_OBJ algorithmObject,		/* algorithm object */
unsigned char	*partIn,	/* input data */
unsigned int	partInLen,	/* length of input data */
A_SURRENDER_CTX *surrenderContext		/* surrender context */
);

Description

B_DigestUpdate updates algorithmObject with partInLen bytes from partIn. The surrender context for processing and canceling during lengthy operations is surrenderContext; if its value is (A_SURRENDER_CTX *)NULL_PTR, Crypto-C does not use it. B_DigestUpdate may be called zero or more times to supply the data by parts.

See B_DigestInit.

Return value

Value	Description
0	Operation was successful.
non-zero	see Appendix A, “Crypto-C Error Types”

C h a p t e r 4 D e t a i l s o f C r y p t o - C F u n c t i o n s 307