fix return types

Author: cen1

quazip/ioapi.h

@@ -189,10 +189,10 @@ typedef struct zlib_filefunc64_32_def_s
 voidpf   ZCALLBACK qiodevice_open_file_func      (voidpf opaque, voidpf file, int mode);
 uLong    ZCALLBACK qiodevice_read_file_func      (voidpf opaque, voidpf stream, void* buf, uLong size);
 uLong    ZCALLBACK qiodevice_write_file_func     (voidpf opaque, voidpf stream, const void* buf, uLong size);
-uLong    ZCALLBACK qiodevice_tell_file_func      (voidpf opaque, voidpf stream);
+long    ZCALLBACK qiodevice_tell_file_func      (voidpf opaque, voidpf stream);
 ZPOS64_T ZCALLBACK qiodevice64_tell_file_func    (voidpf opaque, voidpf stream);
-int      ZCALLBACK qiodevice_seek_file_func      (voidpf opaque, voidpf stream, uLong offset, int origin);
-int      ZCALLBACK qiodevice64_seek_file_func    (voidpf opaque, voidpf stream, ZPOS64_T offset, int origin);
+long      ZCALLBACK qiodevice_seek_file_func      (voidpf opaque, voidpf stream, uLong offset, int origin);
+long      ZCALLBACK qiodevice64_seek_file_func    (voidpf opaque, voidpf stream, ZPOS64_T offset, int origin);
 int      ZCALLBACK qiodevice_close_file_func     (voidpf opaque, voidpf stream);
 int      ZCALLBACK qiodevice_fakeclose_file_func (voidpf opaque, voidpf stream);
 int      ZCALLBACK qiodevice_error_file_func     (voidpf opaque, voidpf stream);