+#ifdef _WIN32
+#include "xcb_windefs.h"
+#else
+#include <sys/socket.h>
+#include <netinet/in.h>
+#endif /* _WIN32 */
+
+/* SHUT_RDWR is fairly recent and is not available on all platforms */
+#if !defined(SHUT_RDWR)
+#define SHUT_RDWR 2
+#endif
+
+typedef struct {
+ uint8_t status;
+ uint8_t pad0[5];
+ uint16_t length;
+} xcb_setup_generic_t;
+
+static const xcb_setup_t xcb_error_setup = {
+ 0, /* status: failed (but we wouldn't have a xcb_setup_t in this case) */
+ 0, /* pad0 */
+ 0, 0, /* protocol version, should be 11.0, but isn't */
+ 0, /* length, invalid value */
+ 0, /* release_number */
+ 0, 0, /* resource_id_{base,mask} */
+ 0, /* motion_buffer_size */
+ 0, /* vendor_len */
+ 0, /* maximum_request_length */
+ 0, /* roots_len */
+ 0, /* pixmap_formats_len */
+ 0, /* image_byte_order */
+ 0, /* bitmap_format_bit_order */
+ 0, /* bitmap_format_scanline_unit */
+ 0, /* bitmap_format_scanline_pad */
+ 0, 0, /* {min,max}_keycode */
+ { 0, 0, 0, 0 } /* pad1 */
+};
+
+/* Keep this list in sync with is_static_error_conn()! */
+static const int xcb_con_error = XCB_CONN_ERROR;
+static const int xcb_con_closed_mem_er = XCB_CONN_CLOSED_MEM_INSUFFICIENT;
+static const int xcb_con_closed_parse_er = XCB_CONN_CLOSED_PARSE_ERR;
+static const int xcb_con_closed_screen_er = XCB_CONN_CLOSED_INVALID_SCREEN;
+
+static int is_static_error_conn(xcb_connection_t *c)
+{
+ return c == (xcb_connection_t *) &xcb_con_error ||
+ c == (xcb_connection_t *) &xcb_con_closed_mem_er ||
+ c == (xcb_connection_t *) &xcb_con_closed_parse_er ||
+ c == (xcb_connection_t *) &xcb_con_closed_screen_er;
+}
+
+static int set_fd_flags(const int fd)
+{
+/* Win32 doesn't have file descriptors and the fcntl function. This block sets the socket in non-blocking mode */
+
+#ifdef _WIN32
+ u_long iMode = 1; /* non-zero puts it in non-blocking mode, 0 in blocking mode */
+ int ret = 0;
+
+ ret = ioctlsocket(fd, FIONBIO, &iMode);
+ if(ret != 0)
+ return 0;
+ return 1;
+#else
+ int flags = fcntl(fd, F_GETFL, 0);
+ if(flags == -1)
+ return 0;
+ flags |= O_NONBLOCK;
+ if(fcntl(fd, F_SETFL, flags) == -1)
+ return 0;
+ if(fcntl(fd, F_SETFD, FD_CLOEXEC) == -1)
+ return 0;
+ return 1;
+#endif /* _WIN32 */
+}
+
+static int write_setup(xcb_connection_t *c, xcb_auth_info_t *auth_info)