110 	BIO_ENC_CTX *ctx;  in enc_new()  local
112 	ctx=(BIO_ENC_CTX *)OPENSSL_malloc(sizeof(BIO_ENC_CTX));  in enc_new()
113 	if (ctx == NULL) return(0);  in enc_new()
114 	EVP_CIPHER_CTX_init(&ctx->cipher);  in enc_new()
116 	ctx->buf_len=0;  in enc_new()
117 	ctx->buf_off=0;  in enc_new()
118 	ctx->cont=1;  in enc_new()
119 	ctx->finished=0;  in enc_new()
120 	ctx->ok=1;  in enc_new()
123 	bi->ptr=(char *)ctx;  in enc_new()
146 	BIO_ENC_CTX *ctx;  in enc_read()  local
149 	ctx=(BIO_ENC_CTX *)b->ptr;  in enc_read()
151 	if ((ctx == NULL) || (b->next_bio == NULL)) return(0);  in enc_read()
154 	if (ctx->buf_len > 0)  in enc_read()
156 		i=ctx->buf_len-ctx->buf_off;  in enc_read()
158 		memcpy(out,&(ctx->buf[ctx->buf_off]),i);  in enc_read()
162 		ctx->buf_off+=i;  in enc_read()
163 		if (ctx->buf_len == ctx->buf_off)  in enc_read()
165 			ctx->buf_len=0;  in enc_read()
166 			ctx->buf_off=0;  in enc_read()
175 		if (ctx->cont <= 0) break;  in enc_read()
179 		i=BIO_read(b->next_bio,&(ctx->buf[BUF_OFFSET]),ENC_BLOCK_SIZE);  in enc_read()
186 				ctx->cont=i;  in enc_read()
187 				i=EVP_CipherFinal_ex(&(ctx->cipher),  in enc_read()
188 					(unsigned char *)ctx->buf,  in enc_read()
189 					&(ctx->buf_len));  in enc_read()
190 				ctx->ok=i;  in enc_read()
191 				ctx->buf_off=0;  in enc_read()
201 			EVP_CipherUpdate(&(ctx->cipher),  in enc_read()
202 				(unsigned char *)ctx->buf,&ctx->buf_len,  in enc_read()
203 				(unsigned char *)&(ctx->buf[BUF_OFFSET]),i);  in enc_read()
204 			ctx->cont=1;  in enc_read()
211 			if(ctx->buf_len == 0) continue;  in enc_read()
214 		if (ctx->buf_len <= outl)  in enc_read()
215 			i=ctx->buf_len;  in enc_read()
219 		memcpy(out,ctx->buf,i);  in enc_read()
221 		ctx->buf_off=i;  in enc_read()
228 	return((ret == 0)?ctx->cont:ret);  in enc_read()
234 	BIO_ENC_CTX *ctx;  in enc_write()  local
236 	ctx=(BIO_ENC_CTX *)b->ptr;  in enc_write()
240 	n=ctx->buf_len-ctx->buf_off;  in enc_write()
243 		i=BIO_write(b->next_bio,&(ctx->buf[ctx->buf_off]),n);  in enc_write()
249 		ctx->buf_off+=i;  in enc_write()
256 	ctx->buf_off=0;  in enc_write()
260 		EVP_CipherUpdate(&(ctx->cipher),  in enc_write()
261 			(unsigned char *)ctx->buf,&ctx->buf_len,  in enc_write()
266 		ctx->buf_off=0;  in enc_write()
267 		n=ctx->buf_len;  in enc_write()
270 			i=BIO_write(b->next_bio,&(ctx->buf[ctx->buf_off]),n);  in enc_write()
277 			ctx->buf_off+=i;  in enc_write()
279 		ctx->buf_len=0;  in enc_write()
280 		ctx->buf_off=0;  in enc_write()
289 	BIO_ENC_CTX *ctx,*dctx;  in enc_ctrl()  local
294 	ctx=(BIO_ENC_CTX *)b->ptr;  in enc_ctrl()
299 		ctx->ok=1;  in enc_ctrl()
300 		ctx->finished=0;  in enc_ctrl()
301 		EVP_CipherInit_ex(&(ctx->cipher),NULL,NULL,NULL,NULL,  in enc_ctrl()
302 			ctx->cipher.encrypt);  in enc_ctrl()
306 		if (ctx->cont <= 0)  in enc_ctrl()
312 		ret=ctx->buf_len-ctx->buf_off;  in enc_ctrl()
317 		ret=ctx->buf_len-ctx->buf_off;  in enc_ctrl()
324 		while (ctx->buf_len != ctx->buf_off)  in enc_ctrl()
331 		if (!ctx->finished)  in enc_ctrl()
333 			ctx->finished=1;  in enc_ctrl()
334 			ctx->buf_off=0;  in enc_ctrl()
335 			ret=EVP_CipherFinal_ex(&(ctx->cipher),  in enc_ctrl()
336 				(unsigned char *)ctx->buf,  in enc_ctrl()
337 				&(ctx->buf_len));  in enc_ctrl()
338 			ctx->ok=(int)ret;  in enc_ctrl()
349 		ret=(long)ctx->ok;  in enc_ctrl()
358 		(*c_ctx)= &(ctx->cipher);  in enc_ctrl()
364 		memcpy(&(dctx->cipher),&(ctx->cipher),sizeof(ctx->cipher));  in enc_ctrl()
411 	BIO_ENC_CTX *ctx;  in BIO_set_cipher()  local
420 	ctx=(BIO_ENC_CTX *)b->ptr;  in BIO_set_cipher()
421 	EVP_CipherInit_ex(&(ctx->cipher),c,NULL, k,i,e);  in BIO_set_cipher()