openssl-1.0.0d/engines/e_padlock.c

915 	size_t chunk, allocated=0;
919 	if ((chunk = ctx->num)) { /* borrow chunk variable */
924 			if (chunk >= AES_BLOCK_SIZE)
928 				while (chunk<AES_BLOCK_SIZE && nbytes!=0) {
929 					ivp[chunk] = *(out_arg++) = *(in_arg++) ^ ivp[chunk];
930 					chunk++, nbytes--;
932 			else	while (chunk<AES_BLOCK_SIZE && nbytes!=0) {
934 					*(out_arg++) = c ^ ivp[chunk];
935 					ivp[chunk++] = c, nbytes--;
938 			ctx->num = chunk%AES_BLOCK_SIZE;
941 			if (chunk >= AES_BLOCK_SIZE)
944 			while (chunk<AES_BLOCK_SIZE && nbytes!=0) {
945 				*(out_arg++) = *(in_arg++) ^ ivp[chunk];
946 				chunk++, nbytes--;
949 			ctx->num = chunk%AES_BLOCK_SIZE;
989 	chunk  = nbytes;
990 	chunk %= PADLOCK_CHUNK;
991 	if (chunk==0) chunk = PADLOCK_CHUNK;
995 		allocated = (chunk<nbytes?PADLOCK_CHUNK:nbytes);
1009 				inp = padlock_memcpy(out, in_arg, chunk);
1012 			in_arg += chunk;
1014 			padlock_xcrypt_ecb(chunk/AES_BLOCK_SIZE, cdata, out, inp);
1017 				out_arg = padlock_memcpy(out_arg, out, chunk) + chunk;
1019 				out     = out_arg+=chunk;
1021 			nbytes -= chunk;
1022 			chunk   = PADLOCK_CHUNK;
1032 			chunk = PADLOCK_CHUNK;
1035 				inp = padlock_memcpy(out, in_arg, chunk);
1038 			in_arg += chunk;
1040 			iv = padlock_xcrypt_cbc(chunk/AES_BLOCK_SIZE, cdata, out, inp);
1043 				out_arg = padlock_memcpy(out_arg, out, chunk) + chunk;
1045 				out     = out_arg+=chunk;
1047 		} while (nbytes -= chunk);
1053 		chunk &= ~(AES_BLOCK_SIZE-1);
1054 		if (chunk)	goto cfb_shortcut;
1059 			chunk = PADLOCK_CHUNK;
1062 				inp = padlock_memcpy(out, in_arg, chunk);
1065 			in_arg += chunk;
1067 			iv = padlock_xcrypt_cfb(chunk/AES_BLOCK_SIZE, cdata, out, inp);
1070 				out_arg = padlock_memcpy(out_arg, out, chunk) + chunk;
1072 				out     = out_arg+=chunk;
1074 			nbytes -= chunk;
1113 		chunk &= ~(AES_BLOCK_SIZE-1);
1114 		if (chunk) do	{
1116 				inp = padlock_memcpy(out, in_arg, chunk);
1119 			in_arg += chunk;
1121 			padlock_xcrypt_ofb(chunk/AES_BLOCK_SIZE, cdata, out, inp);
1124 				out_arg = padlock_memcpy(out_arg, out, chunk) + chunk;
1126 				out     = out_arg+=chunk;
1128 			nbytes -= chunk;
1129 			chunk   = PADLOCK_CHUNK;