lib/libstand/tftp.c

399 	struct tftp_handle *tftpfile;
415 	tftpfile = (struct tftp_handle *) malloc(sizeof(*tftpfile));
416 	if (!tftpfile)
419 	memset(tftpfile, 0, sizeof(*tftpfile));
420 	tftpfile->tftp_blksize = TFTP_REQUESTED_BLKSIZE;
421 	tftpfile->iodesc = io = socktodesc(*(int *) (f->f_devdata));
426 	tftpfile->off = 0;
427 	tftpfile->path = strdup(path);
428 	if (tftpfile->path == NULL) {
429 	    free(tftpfile);
433 	res = tftp_makereq(tftpfile);
436 		free(tftpfile->path);
437 		free(tftpfile);
440 	f->f_fsdata = (void *) tftpfile;
449 	struct tftp_handle *tftpfile;
450 	tftpfile = (struct tftp_handle *) f->f_fsdata;
457 		needblock = tftpfile->off / tftpfile->tftp_blksize + 1;
459 		if (tftpfile->currblock > needblock) {	/* seek backwards */
460 			tftp_senderr(tftpfile, 0, "No error: read aborted");
461 			tftp_makereq(tftpfile);	/* no error check, it worked
465 		while (tftpfile->currblock < needblock) {
468 			res = tftp_getnextblock(tftpfile);
475 			if (tftpfile->islastblock)
479 		if (tftpfile->currblock == needblock) {
482 			offinblock = tftpfile->off % tftpfile->tftp_blksize;
484 			inbuffer = tftpfile->validsize - offinblock;
488 				    tftpfile->off);
493 			bcopy(tftpfile->lastdata.t.th_data + offinblock,
497 			tftpfile->off += count;
500 			if ((tftpfile->islastblock) && (count == inbuffer))
519 	struct tftp_handle *tftpfile;
520 	tftpfile = (struct tftp_handle *) f->f_fsdata;
524 	if (tftpfile) {
525 		free(tftpfile->path);
526 		free(tftpfile);
542 	struct tftp_handle *tftpfile;
543 	tftpfile = (struct tftp_handle *) f->f_fsdata;
556 	struct tftp_handle *tftpfile;
557 	tftpfile = (struct tftp_handle *) f->f_fsdata;
561 		tftpfile->off = offset;
564 		tftpfile->off += offset;
570 	return (tftpfile->off);