Import of old SSLeay release: SSLeay 0.8.1b
diff --git a/demos/b64.c b/demos/b64.c
new file mode 100644
index 0000000..5e3d20e
--- /dev/null
+++ b/demos/b64.c
@@ -0,0 +1,270 @@
+/* demos/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 <stdlib.h>
+#include <string.h>
+#include "apps.h"
+#include "buffer.h"
+#include "err.h"
+#include "evp.h"
+#include "objects.h"
+#include "x509.h"
+#include "pem.h"
+
+#undef SIZE
+#undef BSIZE
+#undef PROG
+
+#define SIZE	(512)
+#define BSIZE	(8*1024)
+#define	PROG	enc_main
+
+int main(argc,argv)
+int argc;
+char **argv;
+	{
+	char *strbuf=NULL;
+	unsigned char *buff=NULL,*bufsize=NULL;
+	int bsize=BSIZE,verbose=0;
+	int ret=1,inl;
+	unsigned char key[24],iv[MD5_DIGEST_LENGTH];
+	char *str=NULL;
+	char *hkey=NULL,*hiv=NULL;
+	int enc=1,printkey=0,i,base64=0;
+	int debug=0;
+	EVP_CIPHER *cipher=NULL,*c;
+	char *inf=NULL,*outf=NULL;
+	BIO *in=NULL,*out=NULL,*b64=NULL,*benc=NULL,*rbio=NULL,*wbio=NULL;
+#define PROG_NAME_SIZE  16
+        char pname[PROG_NAME_SIZE];
+
+
+	apps_startup();
+
+	if (bio_err == NULL)
+		if ((bio_err=BIO_new(BIO_s_file())) != NULL)
+			BIO_set_fp(bio_err,stderr,BIO_NOCLOSE);
+
+	base64=1;
+
+	argc--;
+	argv++;
+	while (argc >= 1)
+		{
+		if	(strcmp(*argv,"-e") == 0)
+			enc=1;
+		if (strcmp(*argv,"-in") == 0)
+			{
+			if (--argc < 1) goto bad;
+			inf= *(++argv);
+			}
+		else if (strcmp(*argv,"-out") == 0)
+			{
+			if (--argc < 1) goto bad;
+			outf= *(++argv);
+			}
+		else if	(strcmp(*argv,"-d") == 0)
+			enc=0;
+		else if	(strcmp(*argv,"-v") == 0)
+			verbose=1;
+		else if	(strcmp(*argv,"-debug") == 0)
+			debug=1;
+		else if (strcmp(*argv,"-bufsize") == 0)
+			{
+			if (--argc < 1) goto bad;
+			bufsize=(unsigned char *)*(++argv);
+			}
+		else
+			{
+			BIO_printf(bio_err,"unknown option '%s'\n",*argv);
+bad:
+			BIO_printf(bio_err,"options are\n");
+			BIO_printf(bio_err,"%-14s input file\n","-in <file>");
+			BIO_printf(bio_err,"%-14s output file\n","-out <file>");
+			BIO_printf(bio_err,"%-14s encode\n","-e");
+			BIO_printf(bio_err,"%-14s decode\n","-d");
+			BIO_printf(bio_err,"%-14s buffer size\n","-bufsize <n>");
+
+			goto end;
+			}
+		argc--;
+		argv++;
+		}
+
+	if (bufsize != NULL)
+		{
+		int i;
+		unsigned long n;
+
+		for (n=0; *bufsize; bufsize++)
+			{
+			i= *bufsize;
+			if ((i <= '9') && (i >= '0'))
+				n=n*10+i-'0';
+			else if (i == 'k')
+				{
+				n*=1024;
+				bufsize++;
+				break;
+				}
+			}
+		if (*bufsize != '\0')
+			{
+			BIO_printf(bio_err,"invalid 'bufsize' specified.\n");
+			goto end;
+			}
+
+		/* It must be large enough for a base64 encoded line */
+		if (n < 80) n=80;
+
+		bsize=(int)n;
+		if (verbose) BIO_printf(bio_err,"bufsize=%d\n",bsize);
+		}
+
+	strbuf=Malloc(SIZE);
+	buff=(unsigned char *)Malloc(EVP_ENCODE_LENGTH(bsize));
+	if ((buff == NULL) || (strbuf == NULL))
+		{
+		BIO_printf(bio_err,"Malloc failure\n");
+		goto end;
+		}
+
+	in=BIO_new(BIO_s_file());
+	out=BIO_new(BIO_s_file());
+	if ((in == NULL) || (out == NULL))
+		{
+		ERR_print_errors(bio_err);
+		goto end;
+		}
+	if (debug)
+		{
+		BIO_set_callback(in,BIO_debug_callback);
+		BIO_set_callback(out,BIO_debug_callback);
+		BIO_set_callback_arg(in,bio_err);
+		BIO_set_callback_arg(out,bio_err);
+		}
+
+	if (inf == NULL)
+		BIO_set_fp(in,stdin,BIO_NOCLOSE);
+	else
+		{
+		if (BIO_read_filename(in,inf) <= 0)
+			{
+			perror(inf);
+			goto end;
+			}
+		}
+
+	if (outf == NULL)
+		BIO_set_fp(out,stdout,BIO_NOCLOSE);
+	else
+		{
+		if (BIO_write_filename(out,outf) <= 0)
+			{
+			perror(outf);
+			goto end;
+			}
+		}
+
+	rbio=in;
+	wbio=out;
+
+	if (base64)
+		{
+		if ((b64=BIO_new(BIO_f_base64())) == NULL)
+			goto end;
+		if (debug)
+			{
+			BIO_set_callback(b64,BIO_debug_callback);
+			BIO_set_callback_arg(b64,bio_err);
+			}
+		if (enc)
+			wbio=BIO_push(b64,wbio);
+		else
+			rbio=BIO_push(b64,rbio);
+		}
+
+	for (;;)
+		{
+		inl=BIO_read(rbio,(char *)buff,bsize);
+		if (inl <= 0) break;
+		if (BIO_write(wbio,(char *)buff,inl) != inl)
+			{
+			BIO_printf(bio_err,"error writing output file\n");
+			goto end;
+			}
+		}
+	BIO_flush(wbio);
+
+	ret=0;
+	if (verbose)
+		{
+		BIO_printf(bio_err,"bytes read   :%8ld\n",BIO_number_read(in));
+		BIO_printf(bio_err,"bytes written:%8ld\n",BIO_number_written(out));
+		}
+end:
+	if (strbuf != NULL) Free(strbuf);
+	if (buff != NULL) Free(buff);
+	if (in != NULL) BIO_free(in);
+	if (out != NULL) BIO_free(out);
+	if (benc != NULL) BIO_free(benc);
+	if (b64 != NULL) BIO_free(b64);
+	EXIT(ret);
+	}
+