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-rw-r--r--gdk/gxid_lib.c116
1 files changed, 116 insertions, 0 deletions
diff --git a/gdk/gxid_lib.c b/gdk/gxid_lib.c
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+++ b/gdk/gxid_lib.c
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+/*
+ * gxid version 0.3
+ *
+ * Copyright 1997 Owen Taylor <owt1@cornell.edu>
+*/
+
+#include "../config.h"
+
+#ifdef XINPUT_GXI
+
+#include <stdio.h>
+#include <unistd.h>
+#include <sys/time.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <netdb.h>
+
+#include "gxid_lib.h"
+
+/* handles mechanics of communicating with a client */
+static int
+gxid_send_message(char *host, int port, GxidMessage *msg)
+{
+ int socket_fd;
+ struct sockaddr_in sin;
+ int count;
+ GxidI32 retval;
+ struct hostent *he;
+
+ if (!port) port = 6951;
+
+ if (!host || strcmp(host,"localhost") )
+ {
+ /* looking it up as localhost can be _SLOW_ on ppp systems */
+ /* FIXME: Could localhost be anything other than loopback? */
+ host = "127.0.0.1";
+ }
+
+ he = gethostbyname(host);
+ if (!he)
+ {
+ fprintf(stderr,"gxid_lib: error looking up %s\n",host);
+ return GXID_RETURN_ERROR;
+ }
+
+ sin.sin_family = he->h_addrtype;
+ sin.sin_port = htons(port);
+ memcpy(&sin.sin_addr,he->h_addr_list[0],he->h_length);
+
+ socket_fd = socket(AF_INET,SOCK_STREAM,0);
+ if (socket_fd < 0)
+ {
+ fprintf(stderr,"gxid_lib: can't get socket");
+ return GXID_RETURN_ERROR;
+ }
+
+ if (connect(socket_fd, (struct sockaddr *)&sin,
+ sizeof sin) < 0)
+ {
+ fprintf(stderr,"gxid_lib: can't connect to %s:%d\n",host,port);
+ close(socket_fd);
+ return GXID_RETURN_ERROR;
+ }
+
+ count = write(socket_fd,(char *)msg,ntohl(msg->any.length));
+ if (count != ntohl(msg->any.length))
+ {
+ fprintf(stderr,"gxid_lib: error writing");
+ close(socket_fd);
+ return GXID_RETURN_ERROR;
+ }
+
+ /* now read the return code */
+ count = read(socket_fd,(char *)&retval,sizeof(GxidI32));
+ if (count != sizeof(GxidI32))
+ {
+ fprintf(stderr,"gxid_lib: error reading return code");
+ close(socket_fd);
+ return GXID_RETURN_ERROR;
+ }
+
+ close (socket_fd);
+ return ntohl(retval);
+}
+
+/* claim a device. If exclusive, device is claimed exclusively */
+int
+gxid_claim_device(char *host, int port, GxidU32 device, GxidU32 window,
+ int exclusive)
+{
+ GxidClaimDevice msg;
+ msg.type = htonl(GXID_CLAIM_DEVICE);
+ msg.length = htonl(sizeof(GxidClaimDevice));
+ msg.device = htonl(device);
+ msg.window = htonl(window);
+ msg.exclusive = htonl(exclusive);
+
+ return gxid_send_message(host,port,(GxidMessage *)&msg);
+}
+
+/* release a device/window pair */
+int
+gxid_release_device(char *host, int port, GxidU32 device, GxidU32 window)
+{
+ GxidReleaseDevice msg;
+ msg.type = htonl(GXID_RELEASE_DEVICE);
+ msg.length = htonl(sizeof(GxidReleaseDevice));
+ msg.device = htonl(device);
+ msg.window = htonl(window);
+
+ return gxid_send_message(host,port,(GxidMessage *)&msg);
+}
+
+#endif /* XINPUT_GXI */
+