/* WindowsCE does not provide a pipe feature. However we need
something like a pipe to convey data between processes and in some
cases within a process. This replacement is not only used by
libassuan but exported and thus usable by gnupg and gpgme as well. */
DWORD
_assuan_w32ce_create_pipe (HANDLE *read_hd, HANDLE *write_hd,
LPSECURITY_ATTRIBUTES sec_attr, DWORD size)
{
HANDLE hd[2] = {INVALID_HANDLE_VALUE, INVALID_HANDLE_VALUE};
int rvid;
int rc = 0;
hd[0] = _assuan_w32ce_prepare_pipe (&rvid, 0);
if (hd[0] != INVALID_HANDLE_VALUE)
{
hd[1] = _assuan_w32ce_finish_pipe (rvid, 1);
if (hd[1] != INVALID_HANDLE_VALUE)
rc = 1;
else
{
DWORD lastrc = GetLastError ();
CloseHandle (hd[0]);
hd[0] = INVALID_HANDLE_VALUE;
SetLastError (lastrc);
}
}
*read_hd = hd[0];
*write_hd = hd[1];
return rc;
}
static gpg_error_t
cmd_message (assuan_context_t ctx, char *line)
{
int rc;
gnupg_fd_t sysfd;
int fd;
ctrl_t ctrl = assuan_get_pointer (ctx);
rc = assuan_command_parse_fd (ctx, line, &sysfd);
if (rc)
return rc;
#ifdef HAVE_W32CE_SYSTEM
sysfd = _assuan_w32ce_finish_pipe ((int)sysfd, 0);
if (sysfd == INVALID_HANDLE_VALUE)
return set_error (gpg_err_code_from_syserror (),
"rvid conversion failed");
#endif
fd = translate_sys2libc_fd (sysfd, 0);
if (fd == -1)
return set_error (GPG_ERR_ASS_NO_INPUT, NULL);
ctrl->server_local->message_fd = fd;
return 0;
}
/* Format is OUTPUT FD=<n> */
static gpg_error_t
std_handler_output (assuan_context_t ctx, char *line)
{
gpg_error_t rc;
assuan_fd_t fd, oldfd;
rc = assuan_command_parse_fd (ctx, line, &fd);
if (rc)
return PROCESS_DONE (ctx, rc);
#ifdef HAVE_W32CE_SYSTEM
oldfd = fd;
fd = _assuan_w32ce_finish_pipe ((int)fd, 1);
if (fd == INVALID_HANDLE_VALUE)
return PROCESS_DONE (ctx, set_error (ctx, gpg_err_code_from_syserror (),
"rvid conversion failed"));
TRACE2 (ctx, ASSUAN_LOG_SYSIO, "std_handler_output", ctx,
"turned RVID 0x%x into handle 0x%x", oldfd, fd);
#endif
if (ctx->output_notify_fnc)
{
oldfd = ctx->output_fd;
ctx->output_fd = fd;
rc = ctx->output_notify_fnc (ctx, line);
if (rc)
ctx->output_fd = oldfd;
}
else if (!rc)
ctx->output_fd = fd;
return PROCESS_DONE (ctx, rc);
}