io.c: Add Remove_directory() and Remove_path()

Also implement WIN32 version of File_length()

src/filesel.c

@@ -1743,10 +1743,10 @@ byte Button_Load_or_Save(T_Selector_settings *settings, byte load, T_IO_Context
             // Si c'est un fichier
             if (Selector->Position+Selector->Offset>=Filelist.Nb_directories)
               // On efface le fichier (si on peut)
-              temp=(!remove(Selector_filename));
+              temp=(!Remove_path(Selector_filename));
             else // Si c'est un repertoire
               // On efface le repertoire (si on peut)
-              temp=(!rmdir(Selector_filename));
+              temp=(!Remove_directory(Selector_filename));
 
             if (temp) // temp indique si l'effacement s'est bien passé
             {

src/io.c

@@ -360,20 +360,43 @@ int File_is_hidden(const char *fname, const char *full_name)
   return fname[0]=='.' && strcmp(fname, PARENT_DIR);
 #endif
 }
-// Taille de fichier, en octets
-int File_length(const char * fname)
+
+// File size in bytes
+unsigned long File_length(const char * fname)
 {
-    struct stat infos_fichier;
-    if (stat(fname,&infos_fichier))
-        return 0;
-    return infos_fichier.st_size;
+#if defined(WIN32)
+  WIN32_FILE_ATTRIBUTE_DATA infos;
+  if (GetFileAttributesExA(fname, GetFileExInfoStandard, &infos))
+  {
+    return (unsigned long)(((DWORD64)infos.nFileSizeHigh << 32) + (DWORD64)infos.nFileSizeLow);
+  }
+  else
+    return 0;
+#else
+  struct stat infos_fichier;
+  if (stat(fname,&infos_fichier))
+    return 0;
+  return infos_fichier.st_size;
+#endif
 }
-int File_length_file(FILE * file)
+
+unsigned long File_length_file(FILE * file)
 {
-    struct stat infos_fichier;
-    if (fstat(fileno(file),&infos_fichier))
-        return 0;
-    return infos_fichier.st_size;
+#if defined(WIN32)
+  // revert to old school way of finding file size
+  long offset_backup;
+  long file_length;
+  offset_backup = ftell(file);
+  fseek(file, 0, SEEK_END);
+  file_length = ftell(file);
+  fseek(file, offset_backup, SEEK_SET);
+  return (unsigned long)file_length;
+#else
+  struct stat infos_fichier;
+  if (fstat(fileno(file),&infos_fichier))
+      return 0;
+  return infos_fichier.st_size;
+#endif
 }
 
 void For_each_file(const char * directory_name, void Callback(const char *, const char *))
@@ -683,3 +706,25 @@ int Change_directory(const char * path)
   return chdir(path);
 #endif
 }
+
+int Remove_path(const char * path)
+{
+#if defined(WIN32)
+  return (DeleteFileA(path) ? 0 : -1);
+#elif defined(__linux__)
+  return unlink(path);
+#else
+  return remove(path);
+#endif
+}
+
+///
+/// Remove the directory
+int Remove_directory(const char * path)
+{
+#if defined(WIN32)
+  return RemoveDirectoryA(path) ? 0 : -1;
+#else
+  return rmdir(path);
+#endif
+}

src/io.h

@@ -82,10 +82,10 @@ char * Find_last_separator(const char * str);
 #endif
 
 /// Size of a file, in bytes. Returns 0 in case of error.
-int File_length(const char *fname);
+unsigned long File_length(const char *fname);
 
 /// Size of a file, in bytes. Takes an open file as argument, returns 0 in case of error.
-int File_length_file(FILE * file);
+unsigned long File_length_file(FILE * file);
 
 /// Returns true if a file passed as a parameter exists in the current directory.
 int File_exists(const char * fname);
@@ -135,3 +135,11 @@ const char * Get_current_directory(char * buf, word * buf_unicode, size_t size);
 ///
 /// Change current directory. return 0 for success, -1 in case of error
 int Change_directory(const char * path);
+
+///
+/// Remove the file
+int Remove_path(const char * path);
+
+///
+/// Remove the directory
+int Remove_directory(const char * path);

src/loadsave.c

@@ -1941,5 +1941,5 @@ void Remove_file(T_IO_Context *context)
 
   Get_full_filename(filename, context->File_name, context->File_directory);
 
-  remove(filename);
+  Remove_path(filename);
 }