openssl/apps/verify.c

230 lines
6.5 KiB
C

/* apps/verify.c */
/* Copyright (C) 1995-1998 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 <openssl/bio.h>
#include <openssl/err.h>
#include <openssl/x509.h>
#include <openssl/pem.h>
#undef PROG
#define PROG verify_main
static int MS_CALLBACK cb(int ok, X509_STORE_CTX *ctx);
static int check(X509_STORE *ctx,char *file);
static int v_verbose=0;
int MAIN(int argc, char **argv)
{
int i,ret=1;
char *CApath=NULL,*CAfile=NULL;
X509_STORE *cert_ctx=NULL;
X509_LOOKUP *lookup=NULL;
cert_ctx=X509_STORE_new();
if (cert_ctx == NULL) goto end;
X509_STORE_set_verify_cb_func(cert_ctx,cb);
ERR_load_crypto_strings();
apps_startup();
if (bio_err == NULL)
if ((bio_err=BIO_new(BIO_s_file())) != NULL)
BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT);
argc--;
argv++;
for (;;)
{
if (argc >= 1)
{
if (strcmp(*argv,"-CApath") == 0)
{
if (argc-- < 1) goto end;
CApath= *(++argv);
}
else if (strcmp(*argv,"-CAfile") == 0)
{
if (argc-- < 1) goto end;
CAfile= *(++argv);
}
else if (strcmp(*argv,"-help") == 0)
goto end;
else if (strcmp(*argv,"-verbose") == 0)
v_verbose=1;
else if (argv[0][0] == '-')
goto end;
else
break;
argc--;
argv++;
}
else
break;
}
lookup=X509_STORE_add_lookup(cert_ctx,X509_LOOKUP_file());
if (lookup == NULL) abort();
if (!X509_LOOKUP_load_file(lookup,CAfile,X509_FILETYPE_PEM))
X509_LOOKUP_load_file(lookup,NULL,X509_FILETYPE_DEFAULT);
lookup=X509_STORE_add_lookup(cert_ctx,X509_LOOKUP_hash_dir());
if (lookup == NULL) abort();
if (!X509_LOOKUP_add_dir(lookup,CApath,X509_FILETYPE_PEM))
X509_LOOKUP_add_dir(lookup,NULL,X509_FILETYPE_DEFAULT);
ERR_clear_error();
if (argc < 1) check(cert_ctx,NULL);
else
for (i=0; i<argc; i++)
check(cert_ctx,argv[i]);
ret=0;
end:
if (ret == 1)
BIO_printf(bio_err,"usage: verify [-verbose] [-CApath path] [-CAfile file] cert1 cert2 ...\n");
if (cert_ctx != NULL) X509_STORE_free(cert_ctx);
EXIT(ret);
}
static int check(X509_STORE *ctx, char *file)
{
X509 *x=NULL;
BIO *in=NULL;
int i=0,ret=0;
X509_STORE_CTX csc;
in=BIO_new(BIO_s_file());
if (in == NULL)
{
ERR_print_errors(bio_err);
goto end;
}
if (file == NULL)
BIO_set_fp(in,stdin,BIO_NOCLOSE);
else
{
if (BIO_read_filename(in,file) <= 0)
{
perror(file);
goto end;
}
}
x=PEM_read_bio_X509(in,NULL,NULL);
if (x == NULL)
{
fprintf(stdout,"%s: unable to load certificate file\n",
(file == NULL)?"stdin":file);
ERR_print_errors(bio_err);
goto end;
}
fprintf(stdout,"%s: ",(file == NULL)?"stdin":file);
X509_STORE_CTX_init(&csc,ctx,x,NULL);
i=X509_verify_cert(&csc);
X509_STORE_CTX_cleanup(&csc);
ret=0;
end:
if (i)
{
fprintf(stdout,"OK\n");
ret=1;
}
else
ERR_print_errors(bio_err);
if (x != NULL) X509_free(x);
if (in != NULL) BIO_free(in);
return(ret);
}
static int MS_CALLBACK cb(int ok, X509_STORE_CTX *ctx)
{
char buf[256];
if (!ok)
{
/* since we are just checking the certificates, it is
* ok if they are self signed. */
if (ctx->error == X509_V_ERR_DEPTH_ZERO_SELF_SIGNED_CERT)
ok=1;
else
{
X509_NAME_oneline(
X509_get_subject_name(ctx->current_cert),buf,256);
printf("%s\n",buf);
printf("error %d at %d depth lookup:%s\n",ctx->error,
ctx->error_depth,
X509_verify_cert_error_string(ctx->error));
if (ctx->error == X509_V_ERR_CERT_HAS_EXPIRED)
ok=1;
}
}
if (!v_verbose)
ERR_clear_error();
return(ok);
}