/* t-encrypt-sign.c  - regression test
   Copyright (C) 2000 Werner Koch (dd9jn)
   Copyright (C) 2001, 2002, 2003 g10 Code GmbH

   This file is part of GPGME.
 
   GPGME 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.
 
   GPGME 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 GPGME; if not, write to the Free Software Foundation,
   Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <assert.h>

#include <gpgme.h>

#define fail_if_err(a) do { if(a) {                                       \
                               fprintf (stderr, "%s:%d: GpgmeError %s\n", \
                                __FILE__, __LINE__, gpgme_strerror(a));   \
                                exit (1); }                               \
                             } while(0)

static void
print_op_info (GpgmeCtx ctx)
{
  char *str = gpgme_get_op_info (ctx, 0);

  if (!str)
    puts ("<!-- no operation info available -->");
  else
    {
      puts (str);
      free (str);
    }
}


static void
print_data (GpgmeData dh)
{
  char buf[100];
  int ret;
  
  ret = gpgme_data_seek (dh, 0, SEEK_SET);
  if (ret)
    fail_if_err (GPGME_File_Error);
  while ((ret = gpgme_data_read (dh, buf, 100)) > 0)
    fwrite (buf, ret, 1, stdout);
  if (ret < 0)
    fail_if_err (GPGME_File_Error);
}


static const char *
passphrase_cb ( void *opaque, const char *desc, void **r_hd )
{
    const char *pass;

    if ( !desc ) {
        /* cleanup by looking at *r_hd */

        
        return NULL;
    }

    pass = "abc";
    fprintf (stderr, "%% requesting passphrase for `%s': ", desc );
    fprintf (stderr, "sending `%s'\n", pass );

    return pass;
}


int 
main (int argc, char **argv )
{
    GpgmeCtx ctx;
    GpgmeError err;
    GpgmeData in, out;
    GpgmeRecipients rset;
    char *p;

    err = gpgme_engine_check_version (GPGME_PROTOCOL_OpenPGP);
    fail_if_err (err);

  do {
    err = gpgme_new (&ctx);
    fail_if_err (err);
    gpgme_set_armor (ctx, 1);

    p = getenv("GPG_AGENT_INFO");
    if (!(p && strchr (p, ':')))
      gpgme_set_passphrase_cb (ctx, passphrase_cb, NULL);

    err = gpgme_data_new_from_mem ( &in, "Hallo Leute\n", 12, 0 );
    fail_if_err (err);

    err = gpgme_data_new ( &out );
    fail_if_err (err);

    err = gpgme_recipients_new (&rset);
    fail_if_err (err);
    err = gpgme_recipients_add_name_with_validity (rset, "Bob",
                                                   GPGME_VALIDITY_FULL);
    fail_if_err (err);
    err = gpgme_recipients_add_name_with_validity (rset, "Alpha",
                                                   GPGME_VALIDITY_FULL);
    fail_if_err (err);


    err = gpgme_op_encrypt_sign (ctx, rset, in, out);
    print_op_info (ctx);
    fail_if_err (err);

    fflush (NULL);
    fputs ("Begin Result:\n", stdout );
    print_data (out);
    fputs ("End Result.\n", stdout );
   
    gpgme_recipients_release (rset);
    gpgme_data_release (in);
    gpgme_data_release (out);
    gpgme_release (ctx);
  } while ( argc > 1 && !strcmp( argv[1], "--loop" ) );
   
    return 0;
}