X11rdp: respect XRDP_SOCKET_PATH environment variable

xorg/X11R7.6/rdp/rdp.h

@@ -348,6 +348,8 @@ int
 g_directory_exist(const char* dirname);
 int
 g_chmod_hex(const char* filename, int flags);
+const char *
+g_socket_dir(void);
 void
 hexdump(unsigned char *p, unsigned int len);
 void

xorg/X11R7.6/rdp/rdpmain.c

@@ -769,7 +769,8 @@ ddxGiveUp(void)
     {
         sprintf(unixSocketName, "/tmp/.X11-unix/X%s", display);
         unlink(unixSocketName);
-        sprintf(unixSocketName, "/tmp/.xrdp/xrdp_disconnect_display_%s", display);
+        sprintf(unixSocketName, "%s/xrdp_disconnect_display_%s",
+                g_socket_dir(), display);
         unlink(unixSocketName);
 
         if (g_uds_data[0] != 0)
@@ -823,7 +824,7 @@ ddxUseMsg(void)
     ErrorF("X11rdp specific options\n");
     ErrorF("-geometry WxH          set framebuffer width & height\n");
     ErrorF("-depth D               set framebuffer depth\n");
-    ErrorF("-uds                   create and listen on /tmp/.xrdp/xrdp_display_x\n");
+    ErrorF("-uds                   create and listen on xrdp_display_x\n");
     ErrorF("\n");
     exit(1);
 }

xorg/X11R7.6/rdp/rdpmisc.c

@@ -517,6 +517,22 @@ g_chmod_hex(const char *filename, int flags)
     return chmod(filename, fl);
 }
 
+/*****************************************************************************/
+/* returns directory where UNIX sockets are located */
+const char *
+g_socket_dir(void)
+{
+    const char *socket_dir;
+
+    socket_dir = getenv("XRDP_SOCKET_PATH");
+    if (socket_dir == NULL || socket_dir[0] == '\0')
+    {
+        socket_dir = "/tmp/.xrdp";
+    }
+
+    return socket_dir;
+}
+
 /* produce a hex dump */
 void
 hexdump(unsigned char *p, unsigned int len)

xorg/X11R7.6/rdp/rdpup.c

@@ -1233,16 +1233,19 @@ rdpup_init(void)
     char text[256];
     char *ptext;
     int i;
+    const char *socket_dir;
 
-    if (!g_directory_exist("/tmp/.xrdp"))
+    socket_dir = g_socket_dir();
+
+    if (!g_directory_exist(socket_dir))
     {
-        if (!g_create_dir("/tmp/.xrdp"))
+        if (!g_create_dir(socket_dir))
         {
-            LLOGLN(0, ("rdpup_init: g_create_dir failed"));
+            LLOGLN(0, ("rdpup_init: g_create_dir(%s) failed", socket_dir));
             return 0;
         }
 
-        g_chmod_hex("/tmp/.xrdp", 0x1777);
+        g_chmod_hex(socket_dir, 0x1777);
     }
 
     i = atoi(display);
@@ -1266,7 +1269,7 @@ rdpup_init(void)
 
     if (g_use_uds)
     {
-        g_sprintf(g_uds_data, "/tmp/.xrdp/xrdp_display_%s", display);
+        g_sprintf(g_uds_data, "%s/xrdp_display_%s", socket_dir, display);
 
         if (g_listen_sck == 0)
         {
@@ -1304,7 +1307,7 @@ rdpup_init(void)
 
     if (g_dis_listen_sck != 0)
     {
-        g_sprintf(text, "/tmp/.xrdp/xrdp_disconnect_display_%s", display);
+        g_sprintf(text, "%s/xrdp_disconnect_display_%s", socket_dir, display);
 
         if (g_tcp_local_bind(g_dis_listen_sck, text) == 0)
         {