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t-cms-parser.c
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/* t-cms-parser.c - basic test for the CMS parser.
* Copyright (C) 2001 g10 Code GmbH
*
* This file is part of KSBA.
*
* KSBA 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 3 of the License, or
* (at your option) any later version.
*
* KSBA 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, see <http://www.gnu.org/licenses/>.
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <assert.h>
#include <time.h>
#include <errno.h>
#include "../src/ksba.h"
#include "t-common.h"
void
dummy_hash_fnc (void *arg, const void *buffer, size_t length)
{
(void)arg;
(void)buffer;
(void)length;
}
static int
dummy_writer_cb (void *cb_value, const void *buffer, size_t count)
{
(void)cb_value;
(void)buffer;
(void)count;
return 0;
}
static void
one_file (const char *fname)
{
gpg_error_t err;
FILE *fp;
ksba_reader_t r;
ksba_writer_t w;
ksba_cms_t cms;
int i;
const char *algoid;
ksba_stop_reason_t stopreason;
const char *s;
size_t n;
ksba_sexp_t p;
char *dn;
int idx;
printf ("*** checking `%s' ***\n", fname);
fp = fopen (fname, "r");
if (!fp)
{
fprintf (stderr, "%s:%d: can't open `%s': %s\n",
__FILE__, __LINE__, fname, strerror (errno));
exit (1);
}
err = ksba_reader_new (&r);
if (err)
fail_if_err (err);
err = ksba_reader_set_file (r, fp);
fail_if_err (err);
/* Also create a writer so that cms.c won't return an error when
writing processed content. */
err = ksba_writer_new (&w);
if (err)
fail_if_err (err);
err = ksba_writer_set_cb (w, dummy_writer_cb, NULL);
fail_if_err (err);
switch (ksba_cms_identify (r))
{
case KSBA_CT_DATA: s = "data"; break;
case KSBA_CT_SIGNED_DATA: s = "signed data"; break;
case KSBA_CT_ENVELOPED_DATA: s = "enveloped data"; break;
case KSBA_CT_DIGESTED_DATA: s = "digested data"; break;
case KSBA_CT_ENCRYPTED_DATA: s = "encrypted data"; break;
case KSBA_CT_AUTH_DATA: s = "auth data"; break;
default: s = "unknown"; break;
}
printf ("identified as: %s\n", s);
err = ksba_cms_new (&cms);
if (err)
fail_if_err (err);
err = ksba_cms_set_reader_writer (cms, r, w);
fail_if_err (err);
err = ksba_cms_parse (cms, &stopreason);
fail_if_err2 (fname, err);
printf ("stop reason: %d\n", stopreason);
s = ksba_cms_get_content_oid (cms, 0);
printf ("ContentType: %s\n", s?s:"none");
err = ksba_cms_parse (cms, &stopreason);
fail_if_err2 (fname, err);
printf ("stop reason: %d\n", stopreason);
s = ksba_cms_get_content_oid (cms, 1);
printf ("EncapsulatedContentType: %s\n", s?s:"none");
printf ("DigestAlgorithms:");
for (i=0; (algoid = ksba_cms_get_digest_algo_list (cms, i)); i++)
printf (" %s", algoid);
putchar('\n');
if (stopreason == KSBA_SR_NEED_HASH)
printf("Detached signature\n");
ksba_cms_set_hash_function (cms, dummy_hash_fnc, NULL);
do
{
err = ksba_cms_parse (cms, &stopreason);
fail_if_err2 (fname, err);
printf ("stop reason: %d\n", stopreason);
}
while (stopreason != KSBA_SR_READY);
if (ksba_cms_get_content_type (cms, 0) == KSBA_CT_ENVELOPED_DATA)
{
for (idx=0; ; idx++)
{
err = ksba_cms_get_issuer_serial (cms, idx, &dn, &p);
if (err == -1)
break; /* ready */
fail_if_err2 (fname, err);
printf ("recipient %d - issuer: ", idx);
print_dn (dn);
ksba_free (dn);
putchar ('\n');
printf ("recipient %d - serial: ", idx);
print_sexp_hex (p);
ksba_free (p);
putchar ('\n');
dn = ksba_cms_get_enc_val (cms, idx);
printf ("recipient %d - enc_val %s\n", idx, dn? "found": "missing");
ksba_free (dn);
}
}
else
{
for (idx=0; idx < 1; idx++)
{
err = ksba_cms_get_issuer_serial (cms, idx, &dn, &p);
if (gpg_err_code (err) == GPG_ERR_NO_DATA && !idx)
{
printf ("this is a certs-only message\n");
break;
}
fail_if_err2 (fname, err);
printf ("signer %d - issuer: ", idx);
print_dn (dn);
ksba_free (dn);
putchar ('\n');
printf ("signer %d - serial: ", idx);
print_sexp_hex (p);
ksba_free (p);
putchar ('\n');
err = ksba_cms_get_message_digest (cms, idx, &dn, &n);
fail_if_err2 (fname, err);
printf ("signer %d - messageDigest: ", idx);
print_hex (dn, n);
ksba_free (dn);
putchar ('\n');
err = ksba_cms_get_sigattr_oids (cms, idx,
"1.2.840.113549.1.9.3",&dn);
if (err && err != -1)
fail_if_err2 (fname, err);
if (err != -1)
{
char *tmp;
for (tmp=dn; *tmp; tmp++)
if (*tmp == '\n')
*tmp = ' ';
printf ("signer %d - content-type: %s\n", idx, dn);
ksba_free (dn);
}
algoid = ksba_cms_get_digest_algo (cms, idx);
printf ("signer %d - digest algo: %s\n", idx, algoid?algoid:"?");
dn = ksba_cms_get_sig_val (cms, idx);
if (dn)
{
printf ("signer %d - signature: ", idx);
print_sexp (dn);
putchar ('\n');
}
else
printf ("signer %d - signature not found\n", idx);
ksba_free (dn);
}
}
ksba_cms_release (cms);
ksba_reader_release (r);
fclose (fp);
}
int
main (int argc, char **argv)
{
if (argc > 1)
one_file (argv[1]);
else
one_file ("x.ber");
/*one_file ("pkcs7-1.ber");*/
/*one_file ("root-cert-2.der"); should fail */
return 0;
}

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