Make hfsfuse FinderInfo serialization match macOS' native behavior

For the com.apple.FinderInfo xattr Apple appears to mask all reserved
fields with zeros, and also the put away folder info and scroll
position. hfsfuse should now match the output of the official driver
for these.
These values may still be read using hfsdump.

Author: 0x09

lib/libhfsuser/hfsuser.c

@@ -451,37 +451,26 @@ static inline char* swapcopy(char* buf, char* src, size_t size) {
 #define SWAPCOPY(buf, src) swapcopy((char*)(buf),(char*)&(src),sizeof((src)))
 
 void hfs_serialize_finderinfo(hfs_catalog_keyed_record_t* rec, char buf[32]) {
+	memset(buf,0,32);
 	if(rec->type == HFS_REC_FILE) {
 		buf = SWAPCOPY(buf, rec->file.user_info.file_type);
 		buf = SWAPCOPY(buf, rec->file.user_info.file_creator);
 		buf = SWAPCOPY(buf, rec->file.user_info.finder_flags);
 		buf = SWAPCOPY(buf, rec->file.user_info.location.v);
 		buf = SWAPCOPY(buf, rec->file.user_info.location.h);
-		buf = SWAPCOPY(buf, rec->file.user_info.reserved);
-
-		for(int i = 0; i < 4; i++)
-			buf = SWAPCOPY(buf, rec->file.finder_info.reserved[i]);
+		buf += 10;
 		buf = SWAPCOPY(buf, rec->file.finder_info.extended_finder_flags);
-		buf = SWAPCOPY(buf, rec->file.finder_info.reserved2);
-		buf = SWAPCOPY(buf, rec->file.finder_info.put_away_folder_cnid);
 	}
 	else if(rec->type == HFS_REC_FLDR) {
 		buf = SWAPCOPY(buf, rec->folder.user_info.window_bounds.t);
 		buf = SWAPCOPY(buf, rec->folder.user_info.window_bounds.l);
 		buf = SWAPCOPY(buf, rec->folder.user_info.window_bounds.b);
 		buf = SWAPCOPY(buf, rec->folder.user_info.window_bounds.r);
-
 		buf = SWAPCOPY(buf, rec->folder.user_info.finder_flags);
 		buf = SWAPCOPY(buf, rec->folder.user_info.location.v);
 		buf = SWAPCOPY(buf, rec->folder.user_info.location.h);
-		buf = SWAPCOPY(buf, rec->folder.user_info.reserved);
-
-		buf = SWAPCOPY(buf, rec->folder.finder_info.scroll_position.v);
-		buf = SWAPCOPY(buf, rec->folder.finder_info.scroll_position.h);
-		buf = SWAPCOPY(buf, rec->folder.finder_info.reserved);
+		buf += 10;
 		buf = SWAPCOPY(buf, rec->folder.finder_info.extended_finder_flags);
-		buf = SWAPCOPY(buf, rec->folder.finder_info.reserved2);
-		buf = SWAPCOPY(buf, rec->folder.finder_info.put_away_folder_cnid);
 	}
 }