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/* import.c - Import certificates
* Copyright (C) 2001 Free Software Foundation, Inc.
*
* This file is part of GnuPG.
*
* GnuPG 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.
*
* GnuPG 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
*/
#include <config.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <unistd.h>
#include <time.h>
#include <assert.h>
#include <ksba.h>
#include "gpgsm.h"
struct reader_cb_parm_s {
FILE *fp;
};
static int
reader_cb (void *cb_value, unsigned char *buffer, size_t count, size_t *nread)
{
struct reader_cb_parm_s *parm = cb_value;
size_t n;
int c = 0;
*nread = 0;
if (!buffer)
return -1; /* not supported */
for (n=0; n < count; n++)
{
c = getc (parm->fp);
if (c == EOF)
{
if ( ferror (parm->fp) )
return -1;
if (n)
break; /* return what we have beofre an EOF */
return -1;
}
*buffer++ = c;
}
*nread = n;
return 0;
}
static void
print_integer (unsigned char *p)
{
unsigned long len;
if (!p)
fputs ("none", stdout);
else
{
len = (p[0] << 24) | (p[1] << 16) | (p[2] << 8) | p[3];
for (p+=4; len; len--, p++)
printf ("%02X", *p);
}
}
static void
print_time (time_t t)
{
if (!t)
fputs ("none", stdout);
else if ( t == (time_t)(-1) )
fputs ("error", stdout);
else
{
struct tm *tp;
tp = gmtime (&t);
printf ("%04d-%02d-%02d %02d:%02d:%02d",
1900+tp->tm_year, tp->tm_mon+1, tp->tm_mday,
tp->tm_hour, tp->tm_min, tp->tm_sec);
assert (!tp->tm_isdst);
}
}
static void
print_dn (char *p)
{
if (!p)
fputs ("error", stdout);
else
printf ("`%s'", p);
}
int
gpgsm_import (int in_fd)
{
int rc;
KsbaReader reader = NULL;
KsbaCert cert = NULL;
struct reader_cb_parm_s rparm;
memset (&rparm, 0, sizeof rparm);
rparm.fp = fdopen ( dup (in_fd), "rb");
if (!rparm.fp)
{
log_error ("fdopen() failed: %s\n", strerror (errno));
rc = seterr (IO_Error);
goto leave;
}
/* setup a skaba reader which uses a callback function so that we can
strip off a base64 encoding when necessary */
reader = ksba_reader_new ();
if (!reader)
{
rc = seterr (Out_Of_Core);
goto leave;
}
rc = ksba_reader_set_cb (reader, reader_cb, &rparm );
if (rc)
{
ksba_reader_release (reader);
rc = map_ksba_err (rc);
goto leave;
}
cert = ksba_cert_new ();
if (!cert)
{
rc = seterr (Out_Of_Core);
goto leave;
}
rc = ksba_cert_read_der (cert, reader);
if (rc)
{
rc = map_ksba_err (rc);
goto leave;
}
{
unsigned char *p;
char *dn;
time_t t;
p = ksba_cert_get_serial (cert);
fputs ("serial: ", stdout);
print_integer (p);
ksba_free (p);
putchar ('\n');
t = ksba_cert_get_validity (cert, 0);
fputs ("notBefore: ", stdout);
print_time (t);
putchar ('\n');
t = ksba_cert_get_validity (cert, 1);
fputs ("notAfter: ", stdout);
print_time (t);
putchar ('\n');
dn = ksba_cert_get_issuer (cert);
fputs ("issuer: ", stdout);
print_dn (dn);
ksba_free (dn);
putchar ('\n');
dn = ksba_cert_get_subject (cert);
fputs ("subject: ", stdout);
print_dn (dn);
ksba_free (dn);
putchar ('\n');
printf ("hash algo: %d\n", ksba_cert_get_digest_algo (cert));
ksba_cert_hash (cert, NULL, NULL);
}
leave:
ksba_cert_release (cert);
ksba_reader_release (reader);
if (rparm.fp)
fclose (rparm.fp);
return rc;
}
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