freespace
freespace = allocspace;
p = freespace;
freespace += strlen(surmapto) + 1;
static unsigned char *freespace;
fsp = freespace(hblk);
static ssize_t freespace(struct holdblk *);
if (freespace(fs, ufsvfsp) <= 0 &&
if (freespace(fs, ufsvfsp) <= 0 &&