Add function

char* ngCM_Input_Path(const char* path);
to shared  ngspice API
to send file path for code model input files (e.g. dsource).
Such path cannot be extracted automatically when netlist has
been sent by ngSpice_Circ

src/include/ngspice/sharedspice.h

@@ -365,12 +365,16 @@ Commands are executed immediately */
 IMPEXP
 int  ngSpice_Command(char* command);
 
-
 /* get info about a vector */
 IMPEXP
 pvector_info ngGet_Vec_Info(char* vecname);
 
 #ifdef XSPICE
+/* Set the input path for files loaded by code models.
+   If NULL is sent, return the current Infile_Path. */
+IMPEXP
+char* ngCM_Input_Path(const char* path);
+
 /* get info about the event node vector */
 IMPEXP
 pevt_shared_data ngGet_Evt_NodeInfo(char* nodename);

src/sharedspice.c

@@ -1085,6 +1085,22 @@ int  ngSpice_Command(char* comexec)
     return 1;
 }
 
+#ifdef XSPICE
+/* Set the input path for files loaded by code models.
+   If NULL is sent, return the current Infile_Path. */
+IMPEXP
+char *ngCM_Input_Path(const char* path)
+{
+    /* delete existing command memory */
+    if (path) {
+        txfree(Infile_Path);
+        Infile_Path = copy(path);
+    }
+    fprintf(stdout, "Note: Codel model file loading path is %s\n", Infile_Path);
+    return Infile_Path;
+}
+#endif
+
 /* Return information about a vector to the caller */
 IMPEXP
 pvector_info  ngGet_Vec_Info(char* vecname)