TMAGLEN
strncpy(hd->magic, TMAGIC, TMAGLEN);
strncpy(hd->magic, TMAGIC, TMAGLEN);
if (strncmp(hd->magic, TMAGIC, TMAGLEN - 1) != 0)
if (strncmp(uhd->magic, TMAGIC, TMAGLEN - 1) == 0)
if (strncmp(hd->magic, TMAGIC, TMAGLEN - 1) != 0)
char magic[TMAGLEN]; /* magic cookie */