static gpgme_error_t
spawn_start (gpgme_ctx_t ctx, int synchronous,
const char *file, const char *argv[],
gpgme_data_t datain,
gpgme_data_t dataout, gpgme_data_t dataerr,
unsigned int flags)
{
gpgme_error_t err;
const char *tmp_argv[2];
if (ctx->protocol != GPGME_PROTOCOL_SPAWN)
return gpg_error (GPG_ERR_UNSUPPORTED_PROTOCOL);
err = _gpgme_op_reset (ctx, synchronous);
if (err)
return err;
if (!argv)
{
tmp_argv[0] = _gpgme_get_basename (file);
tmp_argv[1] = NULL;
argv = tmp_argv;
}
return _gpgme_engine_op_spawn (ctx->engine, file, argv,
datain, dataout, dataerr, flags);
}
static gpgme_error_t
engspawn_start (engine_spawn_t esp, const char *file, const char *argv[],
unsigned int flags)
{
gpgme_error_t err;
int i, n;
int status;
struct spawn_fd_item_s *fd_list;
pid_t pid;
unsigned int spflags;
const char *save_argv0 = NULL;
if (!esp || !file || !argv || !argv[0])
return gpg_error (GPG_ERR_INV_VALUE);
spflags = 0;
if ((flags & GPGME_SPAWN_DETACHED))
spflags |= IOSPAWN_FLAG_DETACHED;
if ((flags & GPGME_SPAWN_ALLOW_SET_FG))
spflags |= IOSPAWN_FLAG_ALLOW_SET_FG;
err = build_fd_data_map (esp);
if (err)
return err;
n = 0;
for (i = 0; esp->fd_data_map[i].data; i++)
n++;
fd_list = calloc (n+1, sizeof *fd_list);
if (!fd_list)
return gpg_error_from_syserror ();
/* Build the fd list for the child. */
n = 0;
for (i = 0; esp->fd_data_map[i].data; i++)
{
fd_list[n].fd = esp->fd_data_map[i].peer_fd;
fd_list[n].dup_to = esp->fd_data_map[i].dup_to;
n++;
}
fd_list[n].fd = -1;
fd_list[n].dup_to = -1;
if (argv[0] && !*argv[0])
{
save_argv0 = argv[0];
argv[0] = _gpgme_get_basename (file);
}
status = _gpgme_io_spawn (file, (char * const *)argv, spflags,
fd_list, NULL, NULL, &pid);
if (save_argv0)
argv[0] = save_argv0;
free (fd_list);
if (status == -1)
return gpg_error_from_syserror ();
for (i = 0; esp->fd_data_map[i].data; i++)
{
err = add_io_cb (esp, esp->fd_data_map[i].fd,
esp->fd_data_map[i].inbound,
esp->fd_data_map[i].inbound
? _gpgme_data_inbound_handler
: _gpgme_data_outbound_handler,
esp->fd_data_map[i].data, &esp->fd_data_map[i].tag);
if (err)
return err; /* FIXME: kill the child */
}
engspawn_io_event (esp, GPGME_EVENT_START, NULL);
return 0;
}
static gpgme_error_t
g13_new (void **engine, const char *file_name, const char *home_dir)
{
gpgme_error_t err = 0;
engine_g13_t g13;
const char *pgmname;
int argc;
const char *argv[5];
char *dft_display = NULL;
char dft_ttyname[64];
char *dft_ttytype = NULL;
char *optstr;
g13 = calloc (1, sizeof *g13);
if (!g13)
return gpg_error_from_syserror ();
g13->status_cb.fd = -1;
g13->status_cb.dir = 1;
g13->status_cb.tag = 0;
g13->status_cb.data = g13;
pgmname = file_name ? file_name : _gpgme_get_default_g13_name ();
argc = 0;
argv[argc++] = _gpgme_get_basename (pgmname);
if (home_dir)
{
argv[argc++] = "--homedir";
argv[argc++] = home_dir;
}
argv[argc++] = "--server";
argv[argc++] = NULL;
err = assuan_new_ext (&g13->assuan_ctx, GPG_ERR_SOURCE_GPGME,
&_gpgme_assuan_malloc_hooks, _gpgme_assuan_log_cb,
NULL);
if (err)
goto leave;
assuan_ctx_set_system_hooks (g13->assuan_ctx, &_gpgme_assuan_system_hooks);
#if USE_DESCRIPTOR_PASSING
err = assuan_pipe_connect (g13->assuan_ctx, pgmname, argv,
NULL, NULL, NULL, ASSUAN_PIPE_CONNECT_FDPASSING);
#else
err = assuan_pipe_connect (g13->assuan_ctx, pgmname, argv,
NULL, NULL, NULL, 0);
#endif
if (err)
goto leave;
err = _gpgme_getenv ("DISPLAY", &dft_display);
if (err)
goto leave;
if (dft_display)
{
if (asprintf (&optstr, "OPTION display=%s", dft_display) < 0)
{
free (dft_display);
err = gpg_error_from_syserror ();
goto leave;
}
free (dft_display);
err = assuan_transact (g13->assuan_ctx, optstr, NULL, NULL, NULL,
NULL, NULL, NULL);
free (optstr);
if (err)
goto leave;
}
if (isatty (1))
{
int rc;
rc = ttyname_r (1, dft_ttyname, sizeof (dft_ttyname));
/* Even though isatty() returns 1, ttyname_r() may fail in many
ways, e.g., when /dev/pts is not accessible under chroot. */
if (!rc)
{
if (asprintf (&optstr, "OPTION ttyname=%s", dft_ttyname) < 0)
{
err = gpg_error_from_syserror ();
goto leave;
}
err = assuan_transact (g13->assuan_ctx, optstr, NULL, NULL, NULL,
NULL, NULL, NULL);
free (optstr);
if (err)
goto leave;
err = _gpgme_getenv ("TERM", &dft_ttytype);
if (err)
goto leave;
if (dft_ttytype)
{
if (asprintf (&optstr, "OPTION ttytype=%s", dft_ttytype) < 0)
{
free (dft_ttytype);
err = gpg_error_from_syserror ();
goto leave;
}
free (dft_ttytype);
err = assuan_transact (g13->assuan_ctx, optstr, NULL, NULL,
NULL, NULL, NULL, NULL);
free (optstr);
if (err)
goto leave;
}
}
}
#ifdef HAVE_W32_SYSTEM
/* Under Windows we need to use AllowSetForegroundWindow. Tell
g13 to tell us when it needs it. */
if (!err)
{
err = assuan_transact (g13->assuan_ctx, "OPTION allow-pinentry-notify",
NULL, NULL, NULL, NULL, NULL, NULL);
if (gpg_err_code (err) == GPG_ERR_UNKNOWN_OPTION)
err = 0; /* This is a new feature of g13. */
}
#endif /*HAVE_W32_SYSTEM*/
leave:
if (err)
g13_release (g13);
else
*engine = g13;
return err;
}
