- Added crl_app program to allow easy reading and printing of X509 CRLs from file
diff --git a/programs/x509/crl_app.c b/programs/x509/crl_app.c
new file mode 100644
index 0000000..b99ffad
--- /dev/null
+++ b/programs/x509/crl_app.c
@@ -0,0 +1,154 @@
+/*
+ * CRL reading application
+ *
+ * Copyright (C) 2006-2010, Brainspark B.V.
+ *
+ * This file is part of PolarSSL (http://www.polarssl.org)
+ * Lead Maintainer: Paul Bakker <polarssl_maintainer at polarssl.org>
+ *
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#ifndef _CRT_SECURE_NO_DEPRECATE
+#define _CRT_SECURE_NO_DEPRECATE 1
+#endif
+
+#include <string.h>
+#include <stdlib.h>
+#include <stdio.h>
+
+#include "polarssl/x509.h"
+
+#define DFL_FILENAME "crl.pem"
+#define DFL_DEBUG_LEVEL 0
+
+/*
+ * global options
+ */
+struct options
+{
+ char *filename; /* filename of the certificate file */
+ int debug_level; /* level of debugging */
+} opt;
+
+void my_debug( void *ctx, int level, const char *str )
+{
+ if( level < opt.debug_level )
+ {
+ fprintf( (FILE *) ctx, "%s", str );
+ fflush( (FILE *) ctx );
+ }
+}
+
+#define USAGE \
+ "\n usage: crl_app param=<>...\n" \
+ "\n acceptable parameters:\n" \
+ " filename=%%s default: cert.crt\n" \
+ " debug_level=%%d default: 0 (disabled)\n" \
+ "\n"
+
+int main( int argc, char *argv[] )
+{
+ int ret = 0;
+ unsigned char buf[1024];
+ x509_crl crl;
+ int i, j, n;
+ char *p, *q;
+
+ /*
+ * Set to sane values
+ */
+ memset( &crl, 0, sizeof( x509_crl ) );
+
+ if( argc == 0 )
+ {
+ usage:
+ printf( USAGE );
+ goto exit;
+ }
+
+ opt.filename = DFL_FILENAME;
+ opt.debug_level = DFL_DEBUG_LEVEL;
+
+ for( i = 1; i < argc; i++ )
+ {
+ n = strlen( argv[i] );
+
+ for( j = 0; j < n; j++ )
+ {
+ if( argv[i][j] >= 'A' && argv[i][j] <= 'Z' )
+ argv[i][j] |= 0x20;
+ }
+
+ p = argv[i];
+ if( ( q = strchr( p, '=' ) ) == NULL )
+ goto usage;
+ *q++ = '\0';
+
+ if( strcmp( p, "filename" ) == 0 )
+ opt.filename = q;
+ else if( strcmp( p, "debug_level" ) == 0 )
+ {
+ opt.debug_level = atoi( q );
+ if( opt.debug_level < 0 || opt.debug_level > 65535 )
+ goto usage;
+ }
+ else
+ goto usage;
+ }
+
+ /*
+ * 1.1. Load the CRL
+ */
+ printf( "\n . Loading the CRL ..." );
+ fflush( stdout );
+
+ ret = x509parse_crlfile( &crl, opt.filename );
+
+ if( ret != 0 )
+ {
+ printf( " failed\n ! x509parse_crl returned %d\n\n", ret );
+ x509_crl_free( &crl );
+ goto exit;
+ }
+
+ printf( " ok\n" );
+
+ /*
+ * 1.2 Print the CRL
+ */
+ printf( " . CRL information ...\n" );
+ ret = x509parse_crl_info( (char *) buf, sizeof( buf ) - 1, " ", &crl );
+ if( ret == -1 )
+ {
+ printf( " failed\n ! x509parse_crl_info returned %d\n\n", ret );
+ x509_crl_free( &crl );
+ goto exit;
+ }
+
+ printf( "%s\n", buf );
+
+exit:
+ x509_crl_free( &crl );
+
+#ifdef WIN32
+ printf( " + Press Enter to exit this program.\n" );
+ fflush( stdout ); getchar();
+#endif
+
+ return( ret );
+}