add remote driver files

remote.c

@@ -0,0 +1,150 @@
+/*  RetroArch - A frontend for libretro.
+ *  Copyright (C) 2010-2014 - Hans-Kristian Arntzen
+ *  Copyright (C) 2011-2015 - Daniel De Matteis
+ *
+ *  RetroArch 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 Found-
+ *  ation, either version 3 of the License, or (at your option) any later version.
+ *
+ *  RetroArch 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 RetroArch.
+ *  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+
+#include <stdio.h>
+#include <string.h>
+
+#ifndef _WIN32
+#include <unistd.h>
+#endif
+
+#include <compat/strl.h>
+#include <compat/posix_string.h>
+#include <file/file_path.h>
+#include <retro_miscellaneous.h>
+#include <net/net_compat.h>
+
+#include "msg_hash.h"
+
+#include "remote.h"
+
+#include "general.h"
+#include "runloop.h"
+#include "verbosity.h"
+
+#define DEFAULT_NETWORK_GAMEPAD_PORT 55400
+#define STDIN_BUF_SIZE 4096
+
+struct rarch_remote
+{
+
+#if defined(HAVE_NETWORK_GAMEPAD) && defined(HAVE_NETPLAY)
+   int net_fd;
+#endif
+
+   bool state[RARCH_BIND_LIST_END];
+};
+
+#if defined(HAVE_NETWORK_GAMEPAD) && defined(HAVE_NETPLAY)
+static bool remote_init_network(rarch_remote_t *handle, uint16_t port, unsigned user)
+{
+   struct addrinfo hints = {0};
+   char port_buf[16]     = {0};
+   struct addrinfo *res  = NULL;
+   int yes               = 1;
+
+   if (!network_init())
+      return false;
+
+   RARCH_LOG("Bringing up remote interface on port %hu.\n",
+         (unsigned short)port);
+
+#if defined(_WIN32) || defined(HAVE_SOCKET_LEGACY)
+   hints.ai_family   = AF_INET;
+#else
+   hints.ai_family   = AF_UNSPEC;
+#endif
+   hints.ai_socktype = SOCK_DGRAM;
+   hints.ai_flags    = AI_PASSIVE;
+
+
+   snprintf(port_buf, sizeof(port_buf), "%hu", (unsigned short)port);
+   if (getaddrinfo_retro(NULL, port_buf, &hints, &res) < 0)
+      goto error;
+
+   handle->net_fd = socket(res->ai_family,
+         res->ai_socktype, res->ai_protocol);
+   if (handle->net_fd < 0)
+      goto error;
+
+   if (!socket_nonblock(handle->net_fd))
+      goto error;
+
+   setsockopt(handle->net_fd, SOL_SOCKET,
+         SO_REUSEADDR, (const char*)&yes, sizeof(int));
+   if (bind(handle->net_fd, res->ai_addr, res->ai_addrlen) < 0)
+   {
+      RARCH_ERR("Failed to bind socket.\n");
+      goto error;
+   }
+
+   freeaddrinfo_retro(res);
+   return true;
+
+error:
+   if (res)
+      freeaddrinfo_retro(res);
+   return false;
+}
+#endif
+
+rarch_remote_t *rarch_remote_new(uint16_t port, unsigned user)
+{
+   rarch_remote_t *handle = (rarch_remote_t*)calloc(1, sizeof(*handle));
+   if (!handle)
+      return NULL;
+
+   (void)port;
+
+#if defined(HAVE_NETWORK_GAMEPAD) && defined(HAVE_NETPLAY)
+   handle->net_fd = -1;
+   if (!remote_init_network(handle, port, user))
+      goto error;
+#endif
+
+   return handle;
+
+#if (defined(HAVE_NETWORK_GAMEPAD) && defined(HAVE_NETPLAY))
+error:
+   rarch_remote_free(handle);
+   return NULL;
+#endif
+}
+
+void rarch_remote_free(rarch_remote_t *handle)
+{
+#if defined(HAVE_NETWORK_GAMEPAD) && defined(HAVE_NETPLAY)
+   if (handle && handle->net_fd >= 0)
+      socket_close(handle->net_fd);
+#endif
+
+   free(handle);
+}
+
+void rarch_remote_set(rarch_remote_t *handle, unsigned id)
+{
+   if (id < RARCH_BIND_LIST_END)
+      handle->state[id] = true;
+}
+
+bool rarch_remote_get(rarch_remote_t *handle, unsigned id)
+{
+   return id < RARCH_BIND_LIST_END && handle->state[id];
+}
+
+
+

remote.h

@@ -0,0 +1,48 @@
+/*  RetroArch - A frontend for libretro.
+ *  Copyright (C) 2010-2014 - Hans-Kristian Arntzen
+ *  Copyright (C) 2011-2015 - Daniel De Matteis
+ * 
+ *  RetroArch 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 Found-
+ *  ation, either version 3 of the License, or (at your option) any later version.
+ *
+ *  RetroArch 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 RetroArch.
+ *  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef REMOTE_H__
+#define REMOTE_H__
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <stdint.h>
+#include <boolean.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef struct rarch_remote rarch_remote_t;
+
+rarch_remote_t *rarch_remote_new(uint16_t port, unsigned user);
+
+void rarch_remote_free(rarch_remote_t *handle);
+
+void rarch_remote_poll(rarch_remote_t *handle);
+
+void rarch_remote_set(rarch_remote_t *handle, unsigned id);
+
+bool rarch_remote_get(rarch_remote_t *handle, unsigned id);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
+