Function changeFileRights

src/common/os/posix/os_utils.cpp:142–151

change ownership and access of file

	// change ownership and access of file
	void changeFileRights(const char* pathname, const mode_t mode)
	{
		uid_t uid = geteuid() == 0 ? get_user_id(FIREBIRD) : -1;
		gid_t gid = get_user_group_id(FIREBIRD);
		while (chown(pathname, uid, gid) < 0 && SYSCALL_INTERRUPTED(errno))
			;

		while (chmod(pathname, mode) < 0 && SYSCALL_INTERRUPTED(errno))
			;
	}

	inline int openFile(const char* pathname, int flags, mode_t mode = 0666)
	{