CSR Parsing (without attributes / extensions) implemented

programs/.gitignore

@@ -41,3 +41,4 @@ x509/cert_app
 x509/cert_req
 x509/crl_app
 x509/cert_write
+x509/req_app

programs/x509/CMakeLists.txt

@@ -16,12 +16,15 @@ target_link_libraries(cert_app ${libs})
 add_executable(crl_app crl_app.c)
 target_link_libraries(crl_app ${libs})
 
+add_executable(req_app req_app.c)
+target_link_libraries(req_app ${libs})
+
 add_executable(cert_req cert_req.c)
 target_link_libraries(cert_req ${libs})
 
 add_executable(cert_write cert_write.c)
 target_link_libraries(cert_write ${libs})
 
-install(TARGETS cert_app crl_app cert_req cert_write
+install(TARGETS cert_app crl_app req_app cert_req cert_write
         DESTINATION "bin"
         PERMISSIONS OWNER_READ OWNER_WRITE OWNER_EXECUTE GROUP_READ GROUP_EXECUTE WORLD_READ WORLD_EXECUTE)

programs/x509/req_app.c

@@ -0,0 +1,152 @@
+/*
+ *  Certificate request reading application
+ *
+ *  Copyright (C) 2006-2013, 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/config.h"
+
+#include "polarssl/x509.h"
+
+#define DFL_FILENAME            "cert.req"
+#define DFL_DEBUG_LEVEL         0
+
+/*
+ * global options
+ */
+struct options
+{
+    const char *filename;       /* filename of the certificate request  */
+} opt;
+
+#define USAGE \
+    "\n usage: req_app param=<>...\n"                   \
+    "\n acceptable parameters:\n"                       \
+    "    filename=%%s         default: cert.req\n"      \
+    "\n"
+
+#if !defined(POLARSSL_BIGNUM_C) || !defined(POLARSSL_RSA_C) ||  \
+    !defined(POLARSSL_X509_PARSE_C) || !defined(POLARSSL_FS_IO)
+int main( int argc, char *argv[] )
+{
+    ((void) argc);
+    ((void) argv);
+
+    printf("POLARSSL_BIGNUM_C and/or POLARSSL_RSA_C and/or "
+           "POLARSSL_X509_PARSE_C and/or POLARSSL_FS_IO not defined.\n");
+    return( 0 );
+}
+#else
+int main( int argc, char *argv[] )
+{
+    int ret = 0;
+    unsigned char buf[100000];
+    x509_csr csr;
+    int i, j, n;
+    char *p, *q;
+
+    /*
+     * Set to sane values
+     */
+    memset( &csr, 0, sizeof( x509_csr ) );
+
+    if( argc == 0 )
+    {
+    usage:
+        printf( USAGE );
+        goto exit;
+    }
+
+    opt.filename            = DFL_FILENAME;
+
+    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
+            goto usage;
+    }
+
+    /*
+     * 1.1. Load the CSR
+     */
+    printf( "\n  . Loading the CSR ..." );
+    fflush( stdout );
+
+    ret = x509parse_csrfile( &csr, opt.filename );
+
+    if( ret != 0 )
+    {
+        printf( " failed\n  !  x509parse_csr returned %d\n\n", ret );
+        x509_csr_free( &csr );
+        goto exit;
+    }
+
+    printf( " ok\n" );
+
+    /*
+     * 1.2 Print the CSR
+     */
+    printf( "  . CSR information    ...\n" );
+    ret = x509parse_csr_info( (char *) buf, sizeof( buf ) - 1, "      ", &csr );
+    if( ret == -1 )
+    {
+        printf( " failed\n  !  x509parse_csr_info returned %d\n\n", ret );
+        x509_csr_free( &csr );
+        goto exit;
+    }
+
+    printf( "%s\n", buf );
+
+exit:
+    x509_csr_free( &csr );
+
+#if defined(_WIN32)
+    printf( "  + Press Enter to exit this program.\n" );
+    fflush( stdout ); getchar();
+#endif
+
+    return( ret );
+}
+#endif /* POLARSSL_BIGNUM_C && POLARSSL_RSA_C && POLARSSL_X509_PARSE_C &&
+          POLARSSL_FS_IO */