lib/libusb/libusb20_desc.c

97 	pcdesc.len =
126 	    pcdesc.len;
143 	memcpy((void *)(lub_endpoint + nendpoint), config_desc, pcdesc.len);
158 	lub_config->extra.len = -ptr[0];
184 				last_ep->extra.len = 0;
187 				lub_config->extra.len += ptr[0];
220 			last_if->extra.len = 0;
231 					last_ep->extra.len += ptr[0];
233 					last_if->extra.len += ptr[0];
236 				lub_config->extra.len += ptr[0];
265 	end = LIBUSB20_ADD_BYTES(start, pdesc->len);
295 	if (offset < ie->len) {
315  * "len" - maximum length of output buffer
320  * 0..65535 - Number of bytes used, limited by the "len" input parameter.
323 libusb20_me_encode(void *ptr, uint16_t len, const void *pd)
335 	len_old = len;
357 				if (len < 1)	/* overflow */
366 				len -= 1;
375 				if (len < 2)	/* overflow */
386 				len -= 2;
395 				if (len < 4)	/* overflow */
407 				len -= 4;
416 				if (len < 8)	/* overflow */
433 				len -= 8;
449 					src_len = ps->len;
454 					if (ps->len == 0) {
461 						ps->len = 0xFFFF;
491 					if (len < (src_len + 3))
501 					len -= (src_len + 3);
503 					if (len < (src_len + 1))
511 					len -= (src_len + 1);
540 	return (len_old - len);
548  * "len" - message length
552  * "0..65535" - number of bytes decoded, limited by "len"
555 libusb20_me_decode(const void *ptr, uint16_t len, void *pd)
567 	len_old = len;
589 				if (len < 1) {
590 					len = 0;
593 					len -= 1;
608 				if (len < 2) {
609 					len = 0;
612 					len -= 2;
628 				if (len < 4) {
629 					len = 0;
632 					len -= 4;
651 				if (len < 8) {
652 					len = 0;
655 					len -= 8;
694 					if (len != 0) {
696 							ps->len = 3;
698 							ps->len = 1;
701 						ps->len = 0;
706 				if (len != 0) {
708 						if (len < 3) {
709 							len = 0;
712 							len -= 3;
718 						len -= 1;
723 					len = 0;
728 				if (temp > len) {
729 					len = 0;
744 						ps->len = 1;
746 						ps->len += temp;
752 					ps->len = temp;
762 						ps->len = 0;
772 						ps->len = 0;
782 					ps->len = 0;
786 				len -= temp;
796 	return (len_old - len);