sync with 766647f: prompt, only 1 file, flush on err

pycdas.cpp

@@ -262,6 +262,8 @@ void output_object(PycRef<PycObject> obj, PycModule* mod, int indent,
 
 int main(int argc, char* argv[])
 {
+    fputs("LilRan's fork of Pycdc, output will be written to <filename>.das and <filename>.cdc.py\n", stderr);
+
     const char* infile = nullptr;
     const char* outfile = nullptr;
     bool marshalled = false;
@@ -304,8 +306,12 @@ int main(int argc, char* argv[])
         } else if (argv[arg][0] == '-') {
             fprintf(stderr, "Error: Unrecognized argument %s\n", argv[arg]);
             return 1;
-        } else {
+        } else if (!infile) {
             infile = argv[arg];
+        } else {
+            fprintf(stderr, "Error: Only one input file allowed, got %s and %s\n",
+                infile, argv[arg]);
+            return 1;
         }
     }
 
@@ -361,6 +367,8 @@ int main(int argc, char* argv[])
         output_object(mod.code().try_cast<PycObject>(), &mod, 0, disasm_flags,
         das_out_file);
     } catch (std::exception& ex) {
+        das_out_file.flush();
+        das_out_file.close();
         fprintf(stderr, "Error disassembling %s: %s\n", infile, ex.what());
         return 1;
     }
@@ -375,6 +383,8 @@ int main(int argc, char* argv[])
     try {
         decompyle(mod.code(), &mod, dc_out_file);
     } catch (std::exception& ex) {
+        dc_out_file.flush();
+        dc_out_file.close();
         fprintf(stderr, "Error decompyling %s: %s\n", infile, ex.what());
         return 1;
     }