int sys_truncate (int fd);
void sys_reset_uid_gid (void);
pid_t sys_child_open_for_compress (void);
pid_t sys_child_open_for_uncompress (void);
ssize_t sys_write_archive_buffer (void);
bool sys_get_archive_stat (void);
int sys_truncate (int fd);
void sys_reset_uid_gid (void);
pid_t sys_child_open_for_compress (void);
pid_t sys_child_open_for_uncompress (void);
ssize_t sys_write_archive_buffer (void);
bool sys_get_archive_stat (void);