Import of old SSLeay release: SSLeay 0.8.1b

50 files changed, 7703 insertions, 0 deletions

diff --git a/crypto/evp/Makefile.ssl b/crypto/evp/Makefile.ssl
new file mode 100644
index 0000000000..20338119ef
--- /dev/null
+++ b/crypto/evp/Makefile.ssl
@@ -0,0 +1,105 @@
+#
+# SSLeay/crypto/evp/Makefile
+#
+
+DIR=	evp
+TOP=	../..
+CC=	cc
+INCLUDES= -I.. -I../../include
+CFLAG=-g
+INSTALLTOP=/usr/local/ssl
+MAKE=		make -f Makefile.ssl
+MAKEDEPEND=	makedepend -f Makefile.ssl
+MAKEFILE=	Makefile.ssl
+AR=		ar r
+
+CFLAGS= $(INCLUDES) $(CFLAG)
+
+ERR=evp
+ERRC=evp_err
+GENERAL=Makefile
+TEST=
+APPS=
+
+LIB=$(TOP)/libcrypto.a
+LIBSRC= encode.c digest.c evp_enc.c evp_key.c \
+	e_ecb_d.c e_cbc_d.c e_cfb_d.c e_ofb_d.c \
+	e_ecb_i.c e_cbc_i.c e_cfb_i.c e_ofb_i.c \
+	e_ecb_3d.c e_cbc_3d.c e_rc4.c names.c \
+	e_cfb_3d.c e_ofb_3d.c e_xcbc_d.c \
+	e_ecb_r2.c e_cbc_r2.c e_cfb_r2.c e_ofb_r2.c \
+	e_ecb_bf.c e_cbc_bf.c e_cfb_bf.c e_ofb_bf.c \
+	m_null.c m_md2.c m_md5.c m_sha.c m_sha1.c m_dss.c m_dss1.c m_mdc2.c \
+	p_open.c p_seal.c p_sign.c p_verify.c p_lib.c \
+	bio_md.c bio_b64.c bio_enc.c $(ERRC).c e_null.c \
+	c_all.c
+
+LIBOBJ=	encode.o digest.o evp_enc.o evp_key.o \
+	e_ecb_d.o e_cbc_d.o e_cfb_d.o e_ofb_d.o \
+	e_ecb_i.o e_cbc_i.o e_cfb_i.o e_ofb_i.o \
+	e_ecb_3d.o e_cbc_3d.o e_rc4.o names.o \
+	e_cfb_3d.o e_ofb_3d.o e_xcbc_d.o \
+	e_ecb_r2.o e_cbc_r2.o e_cfb_r2.o e_ofb_r2.o \
+	e_ecb_bf.o e_cbc_bf.o e_cfb_bf.o e_ofb_bf.o \
+	m_null.o m_md2.o m_md5.o m_sha.o m_sha1.o m_dss.o m_dss1.o m_mdc2.o \
+	p_open.o p_seal.o p_sign.o p_verify.o p_lib.o \
+	bio_md.o bio_b64.o bio_enc.o $(ERRC).o e_null.o \
+	c_all.o
+
+SRC= $(LIBSRC)
+
+EXHEADER= evp.h
+HEADER=	$(EXHEADER)
+
+ALL=    $(GENERAL) $(SRC) $(HEADER)
+
+top:
+	(cd ../..; $(MAKE) DIRS=crypto SDIRS=$(DIR) sub_all)
+
+all:	lib
+
+lib:	$(LIBOBJ)
+	$(AR) $(LIB) $(LIBOBJ)
+	sh $(TOP)/util/ranlib.sh $(LIB)
+	@touch lib
+
+files:
+	perl $(TOP)/util/files.pl Makefile.ssl >> $(TOP)/MINFO
+
+links:
+	/bin/rm -f Makefile
+	$(TOP)/util/point.sh Makefile.ssl Makefile ;
+	$(TOP)/util/mklink.sh ../../include $(EXHEADER)
+	$(TOP)/util/mklink.sh ../../test $(TEST)
+	$(TOP)/util/mklink.sh ../../apps $(APPS)
+
+install:
+	@for i in $(EXHEADER) ; \
+	do  \
+	(cp $$i $(INSTALLTOP)/include/$$i; \
+	chmod 644 $(INSTALLTOP)/include/$$i ); \
+	done;
+
+tags:
+	ctags $(SRC)
+
+tests:
+
+lint:
+	lint -DLINT $(INCLUDES) $(SRC)>fluff
+
+depend:
+	$(MAKEDEPEND) $(INCLUDES) $(LIBSRC)
+
+dclean:
+	perl -pe 'if (/^# DO NOT DELETE THIS LINE/) {print; exit(0);}' $(MAKEFILE) >Makefile.new
+	mv -f Makefile.new $(MAKEFILE)
+
+clean:
+	/bin/rm -f *.o *.obj lib tags core .pure .nfs* *.old *.bak fluff
+
+errors:
+	perl $(TOP)/util/err-ins.pl $(ERR).err $(ERR).h
+	perl ../err/err_genc.pl $(ERR).h $(ERRC).c
+
+# DO NOT DELETE THIS LINE -- make depend depends on it.
diff --git a/crypto/evp/bio_b64.c b/crypto/evp/bio_b64.c
new file mode 100644
index 0000000000..e362dc3bfe
--- /dev/null
+++ b/crypto/evp/bio_b64.c
@@ -0,0 +1,452 @@
+/* crypto/evp/bio_b64.c */
+/* Copyright (C) 1995-1997 Eric Young (eay@cryptsoft.com)
+ * All rights reserved.
+ *
+ * This package is an SSL implementation written
+ * by Eric Young (eay@cryptsoft.com).
+ * The implementation was written so as to conform with Netscapes SSL.
+ * 
+ * This library is free for commercial and non-commercial use as long as
+ * the following conditions are aheared to.  The following conditions
+ * apply to all code found in this distribution, be it the RC4, RSA,
+ * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
+ * included with this distribution is covered by the same copyright terms
+ * except that the holder is Tim Hudson (tjh@cryptsoft.com).
+ * 
+ * Copyright remains Eric Young's, and as such any Copyright notices in
+ * the code are not to be removed.
+ * If this package is used in a product, Eric Young should be given attribution
+ * as the author of the parts of the library used.
+ * This can be in the form of a textual message at program startup or
+ * in documentation (online or textual) provided with the package.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *    "This product includes cryptographic software written by
+ *     Eric Young (eay@cryptsoft.com)"
+ *    The word 'cryptographic' can be left out if the rouines from the library
+ *    being used are not cryptographic related :-).
+ * 4. If you include any Windows specific code (or a derivative thereof) from 
+ *    the apps directory (application code) you must include an acknowledgement:
+ *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
+ * 
+ * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ * 
+ * The licence and distribution terms for any publically available version or
+ * derivative of this code cannot be changed.  i.e. this code cannot simply be
+ * copied and put under another distribution licence
+ * [including the GNU Public Licence.]
+ */
+
+#include <stdio.h>
+#include <errno.h>
+#include "cryptlib.h"
+#include "buffer.h"
+#include "evp.h"
+
+#ifndef NOPROTO
+static int b64_write(BIO *h,char *buf,int num);
+static int b64_read(BIO *h,char *buf,int size);
+/*static int b64_puts(BIO *h,char *str); */
+/*static int b64_gets(BIO *h,char *str,int size); */
+static long b64_ctrl(BIO *h,int cmd,long arg1,char *arg2);
+static int b64_new(BIO *h);
+static int b64_free(BIO *data);
+#else
+static int b64_write();
+static int b64_read();
+/*static int b64_puts(); */
+/*static int b64_gets(); */
+static long b64_ctrl();
+static int b64_new();
+static int b64_free();
+#endif
+
+#define B64_BLOCK_SIZE	1024
+#define B64_NONE	0
+#define B64_ENCODE	1
+#define B64_DECODE	2
+
+typedef struct b64_struct
+	{
+	/*BIO *bio; moved to the BIO structure */
+	int buf_len;
+	int buf_off;
+	int tmp_len;		/* used to find the start when decoding */
+	int tmp_nl;		/* If true, scan until '\n' */
+	int encode;
+	int start;		/* have we started decoding yet? */
+	int cont;		/* <= 0 when finished */
+	EVP_ENCODE_CTX base64;
+	char buf[EVP_ENCODE_LENGTH(B64_BLOCK_SIZE)+10];
+	char tmp[B64_BLOCK_SIZE];
+	} BIO_B64_CTX;
+
+static BIO_METHOD methods_b64=
+	{
+	BIO_TYPE_BASE64,"base64 encoding",
+	b64_write,
+	b64_read,
+	NULL, /* b64_puts, */
+	NULL, /* b64_gets, */
+	b64_ctrl,
+	b64_new,
+	b64_free,
+	};
+
+BIO_METHOD *BIO_f_base64()
+	{
+	return(&methods_b64);
+	}
+
+static int b64_new(bi)
+BIO *bi;
+	{
+	BIO_B64_CTX *ctx;
+
+	ctx=(BIO_B64_CTX *)Malloc(sizeof(BIO_B64_CTX));
+	if (ctx == NULL) return(0);
+
+	ctx->buf_len=0;
+	ctx->tmp_len=0;
+	ctx->tmp_nl=0;
+	ctx->buf_off=0;
+	ctx->cont=1;
+	ctx->start=1;
+	ctx->encode=0;
+
+	bi->init=1;
+	bi->ptr=(char *)ctx;
+	bi->flags=0;
+	return(1);
+	}
+
+static int b64_free(a)
+BIO *a;
+	{
+	if (a == NULL) return(0);
+	Free(a->ptr);
+	a->ptr=NULL;
+	a->init=0;
+	a->flags=0;
+	return(1);
+	}
+	
+static int b64_read(b,out,outl)
+BIO *b;
+char *out;
+int outl;
+	{
+	int ret=0,i,ii,j,k,x,n,num;
+	BIO_B64_CTX *ctx;
+	unsigned char *p,*q;
+
+	if (out == NULL) return(0);
+	ctx=(BIO_B64_CTX *)b->ptr;
+
+	if ((ctx == NULL) || (b->next_bio == NULL)) return(0);
+
+	if (ctx->encode != B64_DECODE)
+		{
+		ctx->encode=B64_DECODE;
+		ctx->buf_len=0;
+		ctx->buf_off=0;
+		EVP_DecodeInit(&(ctx->base64));
+		}
+
+	/* First check if there are bytes decoded/encoded */
+	if (ctx->buf_len > 0)
+		{
+		i=ctx->buf_len-ctx->buf_off;
+		if (i > outl) i=outl;
+		memcpy(out,&(ctx->buf[ctx->buf_off]),i);
+		ret=i;
+		out+=i;
+		outl-=i;
+		ctx->buf_off+=i;
+		if (ctx->buf_len == ctx->buf_off)
+			{
+			ctx->buf_len=0;
+			ctx->buf_off=0;
+			}
+		}
+
+	/* At this point, we have room of outl bytes and an empty
+	 * buffer, so we should read in some more. */
+
+	while (outl > 0)
+		{
+		if (ctx->cont <= 0) break;
+
+		i=BIO_read(b->next_bio,&(ctx->tmp[ctx->tmp_len]),
+			B64_BLOCK_SIZE-ctx->tmp_len);
+
+		if (i <= 0)
+			{
+			/* Should be continue next time we are called? */
+			if (!BIO_should_retry(b->next_bio))
+				ctx->cont=i;
+			break;
+			}
+		i+=ctx->tmp_len;
+
+		/* We need to scan, a line at a time until we
+		 * have a valid line if we are starting. */
+		if (ctx->start)
+			{
+			q=p=(unsigned char *)ctx->tmp;
+			for (j=0; j<i; j++)
+				{
+				if (*(q++) != '\n') continue;
+
+				/* due to a previous very long line,
+				 * we need to keep on scanning for a '\n'
+				 * before we even start looking for
+				 * base64 encoded stuff. */
+				if (ctx->tmp_nl)
+					{
+					p=q;
+					ctx->tmp_nl=0;
+					continue;
+					}
+
+				k=EVP_DecodeUpdate(&(ctx->base64),
+					(unsigned char *)ctx->buf,
+					&num,p,q-p);
+				if ((k <= 0) && (num == 0) && (ctx->start))
+					EVP_DecodeInit(&ctx->base64);
+				else 
+					{
+					if (p != (unsigned char *)
+						&(ctx->tmp[0]))
+						{
+						i-=(p- (unsigned char *)
+							&(ctx->tmp[0]));
+						for (x=0; x < i; x++)
+							ctx->tmp[x]=p[x];
+						EVP_DecodeInit(&ctx->base64);
+						}
+					ctx->start=0;
+					break;
+					}
+				p=q;
+				}
+
+			/* we fell off the end without starting */
+			if (j == i)
+				{
+				/* Is this is one long chunk?, if so, keep on
+				 * reading until a new line. */
+				if (p == (unsigned char *)&(ctx->tmp[0]))
+					{
+					ctx->tmp_nl=1;
+					ctx->tmp_len=0;
+					}
+				else if (p != q) /* finished on a '\n' */
+					{
+					n=q-p;
+					for (ii=0; ii<n; ii++)
+						ctx->tmp[ii]=p[ii];
+					ctx->tmp_len=n;
+					}
+				/* else finished on a '\n' */
+				continue;
+				}
+			else
+				ctx->tmp_len=0;
+			}
+		i=EVP_DecodeUpdate(&(ctx->base64),
+			(unsigned char *)ctx->buf,&ctx->buf_len,
+			(unsigned char *)ctx->tmp,i);
+		ctx->cont=i;
+		ctx->buf_off=0;
+		if (i < 0)
+			{
+			ctx->buf_len=0;
+			break;
+			}
+
+		if (ctx->buf_len <= outl)
+			i=ctx->buf_len;
+		else
+			i=outl;
+
+		memcpy(out,ctx->buf,i);
+		ret+=i;
+		ctx->buf_off=i;
+		if (ctx->buf_off == ctx->buf_len)
+			{
+			ctx->buf_len=0;
+			ctx->buf_off=0;
+			}
+		outl-=i;
+		out+=i;
+		}
+	BIO_clear_retry_flags(b);
+	BIO_copy_next_retry(b);
+	return((ret == 0)?ctx->cont:ret);
+	}
+
+static int b64_write(b,in,inl)
+BIO *b;
+char *in;
+int inl;
+	{
+	int ret=inl,n,i;
+	BIO_B64_CTX *ctx;
+
+	ctx=(BIO_B64_CTX *)b->ptr;
+	BIO_clear_retry_flags(b);
+
+	if (ctx->encode != B64_ENCODE)
+		{
+		ctx->encode=B64_ENCODE;
+		ctx->buf_len=0;
+		ctx->buf_off=0;
+		EVP_EncodeInit(&(ctx->base64));
+		}
+
+	n=ctx->buf_len-ctx->buf_off;
+	while (n > 0)
+		{
+		i=BIO_write(b->next_bio,&(ctx->buf[ctx->buf_off]),n);
+		if (i <= 0)
+			{
+			BIO_copy_next_retry(b);
+			return(i);
+			}
+		ctx->buf_off+=i;
+		n-=i;
+		}
+	/* at this point all pending data has been written */
+
+	if ((in == NULL) || (inl <= 0)) return(0);
+
+	ctx->buf_off=0;
+	while (inl > 0)
+		{
+		n=(inl > B64_BLOCK_SIZE)?B64_BLOCK_SIZE:inl;
+		EVP_EncodeUpdate(&(ctx->base64),
+			(unsigned char *)ctx->buf,&ctx->buf_len,
+			(unsigned char *)in,n);
+		inl-=n;
+		in+=n;
+
+		ctx->buf_off=0;
+		n=ctx->buf_len;
+		while (n > 0)
+			{
+			i=BIO_write(b->next_bio,&(ctx->buf[ctx->buf_off]),n);
+			if (i <= 0)
+				{
+				BIO_copy_next_retry(b);
+				return((ret == 0)?i:ret);
+				}
+			n-=i;
+			ctx->buf_off+=i;
+			}
+		ctx->buf_len=0;
+		ctx->buf_off=0;
+		}
+	return(ret);
+	}
+
+static long b64_ctrl(b,cmd,num,ptr)
+BIO *b;
+int cmd;
+long num;
+char *ptr;
+	{
+	BIO_B64_CTX *ctx;
+	long ret=1;
+	int i;
+
+	ctx=(BIO_B64_CTX *)b->ptr;
+
+	switch (cmd)
+		{
+	case BIO_CTRL_RESET:
+		ctx->cont=1;
+		ctx->start=1;
+		ctx->encode=B64_NONE;
+		ret=BIO_ctrl(b->next_bio,cmd,num,ptr);
+		break;
+	case BIO_CTRL_EOF:	/* More to read */
+		if (ctx->cont <= 0)
+			ret=1;
+		else
+			ret=BIO_ctrl(b->next_bio,cmd,num,ptr);
+		break;
+	case BIO_CTRL_WPENDING: /* More to write in buffer */
+		ret=ctx->buf_len-ctx->buf_off;
+		if ((ret == 0) && (ctx->base64.num != 0))
+			ret=1;
+		else if (ret <= 0)
+			ret=BIO_ctrl(b->next_bio,cmd,num,ptr);
+		break;
+	case BIO_CTRL_PENDING: /* More to read in buffer */
+		ret=ctx->buf_len-ctx->buf_off;
+		if (ret <= 0)
+			ret=BIO_ctrl(b->next_bio,cmd,num,ptr);
+		break;
+	case BIO_CTRL_FLUSH:
+		/* do a final write */
+again:
+		while (ctx->buf_len != ctx->buf_off)
+			{
+			i=b64_write(b,NULL,0);
+			if (i < 0)
+				{
+				ret=i;
+				break;
+				}
+			}
+		if (ctx->base64.num != 0)
+			{
+			ctx->buf_off=0;
+			EVP_EncodeFinal(&(ctx->base64),
+				(unsigned char *)ctx->buf,
+				&(ctx->buf_len));
+			/* push out the bytes */
+			goto again;
+			}
+		/* Finally flush the underlying BIO */
+		ret=BIO_ctrl(b->next_bio,cmd,num,ptr);
+		break;
+
+	case BIO_C_DO_STATE_MACHINE:
+		BIO_clear_retry_flags(b);
+		ret=BIO_ctrl(b->next_bio,cmd,num,ptr);
+		BIO_copy_next_retry(b);
+		break;
+
+	case BIO_CTRL_DUP:
+		break;
+	case BIO_CTRL_INFO:
+	case BIO_CTRL_GET:
+	case BIO_CTRL_SET:
+	default:
+		ret=BIO_ctrl(b->next_bio,cmd,num,ptr);
+		break;
+		}
+	return(ret);
+	}
+
diff --git a/crypto/evp/bio_enc.c b/crypto/evp/bio_enc.c
new file mode 100644
index 0000000000..6020736fd0
--- /dev/null
+++ b/crypto/evp/bio_enc.c
@@ -0,0 +1,402 @@
+/* crypto/evp/bio_enc.c */
+/* Copyright (C) 1995-1997 Eric Young (eay@cryptsoft.com)
+ * All rights reserved.
+ *
+ * This package is an SSL implementation written
+ * by Eric Young (eay@cryptsoft.com).
+ * The implementation was written so as to conform with Netscapes SSL.
+ * 
+ * This library is free for commercial and non-commercial use as long as
+ * the following conditions are aheared to.  The following conditions
+ * apply to all code found in this distribution, be it the RC4, RSA,
+ * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
+ * included with this distribution is covered by the same copyright terms
+ * except that the holder is Tim Hudson (tjh@cryptsoft.com).
+ * 
+ * Copyright remains Eric Young's, and as such any Copyright notices in
+ * the code are not to be removed.
+ * If this package is used in a product, Eric Young should be given attribution
+ * as the author of the parts of the library used.
+ * This can be in the form of a textual message at program startup or
+ * in documentation (online or textual) provided with the package.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *    "This product includes cryptographic software written by
+ *     Eric Young (eay@cryptsoft.com)"
+ *    The word 'cryptographic' can be left out if the rouines from the library
+ *    being used are not cryptographic related :-).
+ * 4. If you include any Windows specific code (or a derivative thereof) from 
+ *    the apps directory (application code) you must include an acknowledgement:
+ *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
+ * 
+ * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ * 
+ * The licence and distribution terms for any publically available version or
+ * derivative of this code cannot be changed.  i.e. this code cannot simply be
+ * copied and put under another distribution licence
+ * [including the GNU Public Licence.]
+ */
+
+#include <stdio.h>
+#include <errno.h>
+#include "cryptlib.h"
+#include "buffer.h"
+#include "evp.h"
+
+#ifndef NOPROTO
+static int enc_write(BIO *h,char *buf,int num);
+static int enc_read(BIO *h,char *buf,int size);
+/*static int enc_puts(BIO *h,char *str); */
+/*static int enc_gets(BIO *h,char *str,int size); */
+static long enc_ctrl(BIO *h,int cmd,long arg1,char *arg2);
+static int enc_new(BIO *h);
+static int enc_free(BIO *data);
+#else
+static int enc_write();
+static int enc_read();
+/*static int enc_puts(); */
+/*static int enc_gets(); */
+static long enc_ctrl();
+static int enc_new();
+static int enc_free();
+#endif
+
+#define ENC_BLOCK_SIZE	(1024*4)
+
+typedef struct enc_struct
+	{
+	int buf_len;
+	int buf_off;
+	int cont;		/* <= 0 when finished */
+	int finished;
+	int ok;			/* bad decrypt */
+	EVP_CIPHER_CTX cipher;
+	char buf[ENC_BLOCK_SIZE+10];
+	} BIO_ENC_CTX;
+
+static BIO_METHOD methods_enc=
+	{
+	BIO_TYPE_CIPHER,"cipher",
+	enc_write,
+	enc_read,
+	NULL, /* enc_puts, */
+	NULL, /* enc_gets, */
+	enc_ctrl,
+	enc_new,
+	enc_free,
+	};
+
+BIO_METHOD *BIO_f_cipher()
+	{
+	return(&methods_enc);
+	}
+
+static int enc_new(bi)
+BIO *bi;
+	{
+	BIO_ENC_CTX *ctx;
+
+	ctx=(BIO_ENC_CTX *)Malloc(sizeof(BIO_ENC_CTX));
+	if (ctx == NULL) return(0);
+
+	ctx->buf_len=0;
+	ctx->buf_off=0;
+	ctx->cont=1;
+	ctx->finished=0;
+	ctx->ok=1;
+
+	bi->init=0;
+	bi->ptr=(char *)ctx;
+	bi->flags=0;
+	return(1);
+	}
+
+static int enc_free(a)
+BIO *a;
+	{
+	BIO_ENC_CTX *b;
+
+	if (a == NULL) return(0);
+	b=(BIO_ENC_CTX *)a->ptr;
+	EVP_CIPHER_CTX_cleanup(&(b->cipher));
+	memset(a->ptr,0,sizeof(BIO_ENC_CTX));
+	Free(a->ptr);
+	a->ptr=NULL;
+	a->init=0;
+	a->flags=0;
+	return(1);
+	}
+	
+static int enc_read(b,out,outl)
+BIO *b;
+char *out;
+int outl;
+	{
+	int ret=0,i;
+	BIO_ENC_CTX *ctx;
+
+	if (out == NULL) return(0);
+	ctx=(BIO_ENC_CTX *)b->ptr;
+
+	if ((ctx == NULL) || (b->next_bio == NULL)) return(0);
+
+	/* First check if there are bytes decoded/encoded */
+	if (ctx->buf_len > 0)
+		{
+		i=ctx->buf_len-ctx->buf_off;
+		if (i > outl) i=outl;
+		memcpy(out,&(ctx->buf[ctx->buf_off]),i);
+		ret=i;
+		out+=i;
+		outl-=i;
+		ctx->buf_off+=i;
+		if (ctx->buf_len == ctx->buf_off)
+			{
+			ctx->buf_len=0;