checkmap
extern int checkmap(int, int, char *, char *, char *, char *, int);
if (checkmap(0, (device != NULL), mapfile, envfile, NULL,
if (checkmap(0, (device != NULL), file, envfile,
if (checkmap(1, (device != NULL), file, NULL,
if (checkmap(1, (device != NULL), file, NULL,
if (checkmap(1, (device != NULL), file, NULL,