Import of old SSLeay release: SSLeay 0.8.1b
diff --git a/apps/crl.c b/apps/crl.c
new file mode 100644
index 0000000..9642ee5
--- /dev/null
+++ b/apps/crl.c
@@ -0,0 +1,330 @@
+/* apps/crl.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 "bio.h"
+#include "err.h"
+#include "x509.h"
+#include "pem.h"
+
+#undef PROG
+#define PROG	crl_main
+
+#undef POSTFIX
+#define	POSTFIX	".rvk"
+
+#define FORMAT_UNDEF	0
+#define FORMAT_ASN1	1
+#define FORMAT_TEXT	2
+#define FORMAT_PEM	3
+
+static char *crl_usage[]={
+"usage: crl args\n",
+"\n",
+" -inform arg     - input format - default PEM (one of DER, TXT or PEM)\n",
+" -outform arg    - output format - default PEM\n",
+" -text           - print out a text format version\n",
+" -in arg         - input file - default stdin\n",
+" -out arg        - output file - default stdout\n",
+" -hash           - print hash value\n",
+" -issuer         - print issuer DN\n",
+" -lastupdate     - lastUpdate field\n",
+" -nextupdate     - nextUpdate field\n",
+" -noout          - no CRL output\n",
+NULL
+};
+
+#ifndef NOPROTO
+static X509_CRL *load_crl(char *file, int format);
+#else
+static X509_CRL *load_crl();
+#endif
+
+static BIO *bio_out=NULL;
+
+int MAIN(argc, argv)
+int argc;
+char **argv;
+	{
+	X509_CRL *x=NULL;
+	int ret=1,i,num,badops=0;
+	BIO *out=NULL;
+	int informat,outformat;
+	char *infile=NULL,*outfile=NULL;
+	char *str=NULL;
+	int hash=0,issuer=0,lastupdate=0,nextupdate=0,noout=0;
+	char **pp,buf[256];
+
+	apps_startup();
+
+	if (bio_err == NULL)
+		if ((bio_err=BIO_new(BIO_s_file())) != NULL)
+			BIO_set_fp(bio_err,stderr,BIO_NOCLOSE);
+
+	if (bio_out == NULL)
+		if ((bio_out=BIO_new(BIO_s_file())) != NULL)
+			BIO_set_fp(bio_out,stdout,BIO_NOCLOSE);
+
+	informat=FORMAT_PEM;
+	outformat=FORMAT_PEM;
+
+	argc--;
+	argv++;
+	num=0;
+	while (argc >= 1)
+		{
+#ifdef undef
+		if	(strcmp(*argv,"-p") == 0)
+			{
+			if (--argc < 1) goto bad;
+			if (!args_from_file(++argv,Nargc,Nargv)) { goto end; }*/
+			}
+#endif
+		if 	(strcmp(*argv,"-inform") == 0)
+			{
+			if (--argc < 1) goto bad;
+			informat=str2fmt(*(++argv));
+			}
+		else if (strcmp(*argv,"-outform") == 0)
+			{
+			if (--argc < 1) goto bad;
+			outformat=str2fmt(*(++argv));
+			}
+		else if (strcmp(*argv,"-text") == 0)
+			{
+			outformat=FORMAT_TEXT;
+			}
+		else if (strcmp(*argv,"-in") == 0)
+			{
+			if (--argc < 1) goto bad;
+			infile= *(++argv);
+			}
+		else if (strcmp(*argv,"-out") == 0)
+			{
+			if (--argc < 1) goto bad;
+			outfile= *(++argv);
+			}
+		else if (strcmp(*argv,"-hash") == 0)
+			hash= ++num;
+		else if (strcmp(*argv,"-issuer") == 0)
+			issuer= ++num;
+		else if (strcmp(*argv,"-lastupdate") == 0)
+			lastupdate= ++num;
+		else if (strcmp(*argv,"-nextupdate") == 0)
+			nextupdate= ++num;
+		else if (strcmp(*argv,"-noout") == 0)
+			noout= ++num;
+		else
+			{
+			BIO_printf(bio_err,"unknown option %s\n",*argv);
+			badops=1;
+			break;
+			}
+		argc--;
+		argv++;
+		}
+
+	if (outformat == FORMAT_TEXT)
+		{
+		num=0;
+		issuer= ++num;
+		lastupdate= ++num;
+		nextupdate= ++num;
+		}
+
+	if (badops)
+		{
+bad:
+		for (pp=crl_usage; (*pp != NULL); pp++)
+			BIO_printf(bio_err,*pp);
+		goto end;
+		}
+
+	ERR_load_crypto_strings();
+	x=load_crl(infile,informat);
+	if (x == NULL) { goto end; }
+
+	if (num)
+		{
+		for (i=1; i<=num; i++)
+			{
+			if (issuer == i)
+				{
+				X509_NAME_oneline(x->crl->issuer,buf,256);
+				fprintf(stdout,"issuer= %s\n",str);
+				}
+
+			if (hash == i)
+				{
+				fprintf(stdout,"%08lx\n",
+					X509_NAME_hash(x->crl->issuer));
+				}
+			if (lastupdate == i)
+				{
+				fprintf(stdout,"lastUpdate=");
+				ASN1_UTCTIME_print(bio_out,x->crl->lastUpdate);
+				fprintf(stdout,"\n");
+				}
+			if (nextupdate == i)
+				{
+				fprintf(stdout,"nextUpdate=");
+				ASN1_UTCTIME_print(bio_out,x->crl->nextUpdate);
+				fprintf(stdout,"\n");
+				}
+			}
+		}
+
+	if (noout) goto end;
+
+	out=BIO_new(BIO_s_file());
+	if (out == NULL)
+		{
+		ERR_print_errors(bio_err);
+		goto end;
+		}
+
+	if (outfile == NULL)
+		BIO_set_fp(out,stdout,BIO_NOCLOSE);
+	else
+		{
+		if (BIO_write_filename(out,outfile) <= 0)
+			{
+			perror(outfile);
+			goto end;
+			}
+		}
+
+	if 	(outformat == FORMAT_ASN1)
+		i=(int)i2d_X509_CRL_bio(out,x);
+	else if (outformat == FORMAT_PEM)
+		i=PEM_write_bio_X509_CRL(out,x);
+	else if (outformat == FORMAT_TEXT)
+		{
+		X509_REVOKED *r;
+
+		while ((r=(X509_REVOKED *)sk_pop(x->crl->revoked)) != NULL)
+			{
+			fprintf(stdout,"revoked: serialNumber=");
+			i2a_ASN1_INTEGER(out,r->serialNumber);
+			fprintf(stdout," revocationDate=");
+			ASN1_UTCTIME_print(bio_out,r->revocationDate);
+			fprintf(stdout,"\n");
+			}
+		i=1;
+		}
+	else	
+		{
+		BIO_printf(bio_err,"bad output format specified for outfile\n");
+		goto end;
+		}
+	if (!i) { BIO_printf(bio_err,"unable to write CRL\n"); goto end; }
+	ret=0;
+end:
+	if (out != NULL) BIO_free(out);
+	if (bio_out != NULL) BIO_free(bio_out);
+	if (x != NULL) X509_CRL_free(x);
+	EXIT(ret);
+	}
+
+static X509_CRL *load_crl(infile, format)
+char *infile;
+int format;
+	{
+	X509_CRL *x=NULL;
+	BIO *in=NULL;
+
+	in=BIO_new(BIO_s_file());
+	if (in == NULL)
+		{
+		ERR_print_errors(bio_err);
+		goto end;
+		}
+
+	if (infile == NULL)
+		BIO_set_fp(in,stdin,BIO_NOCLOSE);
+	else
+		{
+		if (BIO_read_filename(in,infile) <= 0)
+			{
+			perror(infile);
+			goto end;
+			}
+		}
+	if 	(format == FORMAT_ASN1)
+		x=d2i_X509_CRL_bio(in,NULL);
+	else if (format == FORMAT_PEM)
+		x=PEM_read_bio_X509_CRL(in,NULL,NULL);
+	else	{
+		BIO_printf(bio_err,"bad input format specified for input crl\n");
+		goto end;
+		}
+	if (x == NULL)
+		{
+		BIO_printf(bio_err,"unable to load CRL\n");
+		ERR_print_errors(bio_err);
+		goto end;
+		}
+	
+end:
+	if (in != NULL) BIO_free(in);
+	return(x);
+	}
+