size_t len;
int eof, readlen;
sgr = gr;
if (old_gr == NULL && gr == NULL)
return(-1);
sgr = old_gr;
/* deleting a group */
if (gr == NULL) {
line = NULL;
if (old_gr == NULL)
} else {
if ((line = gr_make(gr)) == NULL)
return (-1);
}
} else if ((line = gr_make(gr)) == NULL)
/* adding a group */
if (sgr == NULL)
eof = 0;
len = 0;