Make socket directory configurable, don't hardcode /tmp/.xrdp

Use XRDP_SOCKET_PATH in file_loc.h

Don't define any non-socket paths in file_loc.h, they should come from
the makefiles.

Define all paths unconditionally, they should not be defined elsewhere.

Pass XRDP_SOCKET_PATH as environment variable to the backends.

module-xrdp-sink.c

@@ -68,6 +68,7 @@ typedef bool pa_bool_t;
 #endif
 
 #include "module-xrdp-sink-symdef.h"
+#include "../common/file_loc.h"
 
 PA_MODULE_AUTHOR("Jay Sorg");
 PA_MODULE_DESCRIPTION("xrdp sink");
@@ -84,7 +85,6 @@ PA_MODULE_USAGE(
 #define DEFAULT_SINK_NAME "xrdp-sink"
 #define BLOCK_USEC 30000
 //#define BLOCK_USEC (PA_USEC_PER_SEC * 2)
-#define CHANSRV_PORT_STR "/tmp/.xrdp/xrdp_chansrv_audio_out_socket_%d"
 
 struct userdata {
     pa_core *core;

module-xrdp-source.c

@@ -55,6 +55,7 @@ typedef bool pa_bool_t;
 #endif
 
 #include "module-xrdp-source-symdef.h"
+#include "../common/file_loc.h"
 
 PA_MODULE_AUTHOR("Laxmikant Rashinkar");
 PA_MODULE_DESCRIPTION("xrdp source");
@@ -72,7 +73,6 @@ PA_MODULE_USAGE(
 #define DEFAULT_SOURCE_NAME "xrdp-source"
 #define DEFAULT_LATENCY_TIME 10
 #define MAX_LATENCY_USEC 1000
-#define CHANSRV_PORT_STR "/tmp/.xrdp/xrdp_chansrv_audio_in_socket_%d"
 
 struct userdata {
     pa_core *core;