/* assuan-pipe-server.c - Assuan server working over a pipe * 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 <stdlib.h> #include <stdio.h> #include "assuan-defs.h" static void deinit_pipe_server (ASSUAN_CONTEXT ctx) { /* nothing to do for this simple server */ } static int accept_connection (ASSUAN_CONTEXT ctx) { /* This is a NOP for a pipe server */ return 0; } static int finish_connection (ASSUAN_CONTEXT ctx) { /* This is a NOP for a pipe server */ return 0; } /* Create a new context. Note that the handlers are set up for a pipe server/client - this wau we don't need extra dummy functions */ int _assuan_new_context (ASSUAN_CONTEXT *r_ctx) { ASSUAN_CONTEXT ctx; int rc; *r_ctx = NULL; ctx = xtrycalloc (1, sizeof *ctx); if (!ctx) return ASSUAN_Out_Of_Core; ctx->input_fd = -1; ctx->output_fd = -1; ctx->inbound.fd = -1; ctx->outbound.fd = -1; ctx->listen_fd = -1; ctx->client_pid = (pid_t)-1; /* use the pipe server handler as a default */ ctx->deinit_handler = deinit_pipe_server; ctx->accept_handler = accept_connection; ctx->finish_handler = finish_connection; rc = _assuan_register_std_commands (ctx); if (rc) xfree (ctx); else *r_ctx = ctx; return rc; } int assuan_init_pipe_server (ASSUAN_CONTEXT *r_ctx, int filedes[2]) { int rc; rc = _assuan_new_context (r_ctx); if (!rc) { ASSUAN_CONTEXT ctx = *r_ctx; ctx->is_server = 1; ctx->inbound.fd = filedes[0]; ctx->outbound.fd = filedes[1]; ctx->pipe_mode = 1; } return rc; } void _assuan_release_context (ASSUAN_CONTEXT ctx) { if (ctx) { xfree (ctx->hello_line); xfree (ctx->okay_line); xfree (ctx); } } void assuan_deinit_server (ASSUAN_CONTEXT ctx) { if (ctx) { /* We use this function pointer to avoid linking other server when not needed but still allow for a generic deinit function */ ctx->deinit_handler (ctx); ctx->deinit_handler = NULL; _assuan_release_context (ctx); } }