lib/libusb/libusb20_desc.c

95 	pcdesc.len =
124 	    pcdesc.len;
141 	memcpy((void *)(lub_endpoint + nendpoint), config_desc, pcdesc.len);
156 	lub_config->extra.len = -ptr[0];
182 				last_ep->extra.len = 0;
185 				lub_config->extra.len += ptr[0];
218 			last_if->extra.len = 0;
229 					last_ep->extra.len += ptr[0];
231 					last_if->extra.len += ptr[0];
234 				lub_config->extra.len += ptr[0];
263 	end = LIBUSB20_ADD_BYTES(start, pdesc->len);
293 	if (offset < ie->len) {
313  * "len" - maximum length of output buffer
318  * 0..65535 - Number of bytes used, limited by the "len" input parameter.
321 libusb20_me_encode(void *ptr, uint16_t len, const void *pd)
333 	len_old = len;
355 				if (len < 1)	/* overflow */
364 				len -= 1;
373 				if (len < 2)	/* overflow */
384 				len -= 2;
393 				if (len < 4)	/* overflow */
405 				len -= 4;
414 				if (len < 8)	/* overflow */
431 				len -= 8;
447 					src_len = ps->len;
452 					if (ps->len == 0) {
459 						ps->len = 0xFFFF;
489 					if (len < (src_len + 3))
499 					len -= (src_len + 3);
501 					if (len < (src_len + 1))
509 					len -= (src_len + 1);
538 	return (len_old - len);
546  * "len" - message length
550  * "0..65535" - number of bytes decoded, limited by "len"
553 libusb20_me_decode(const void *ptr, uint16_t len, void *pd)
565 	len_old = len;
587 				if (len < 1) {
588 					len = 0;
591 					len -= 1;
606 				if (len < 2) {
607 					len = 0;
610 					len -= 2;
626 				if (len < 4) {
627 					len = 0;
630 					len -= 4;
649 				if (len < 8) {
650 					len = 0;
653 					len -= 8;
692 					if (len != 0) {
694 							ps->len = 3;
696 							ps->len = 1;
699 						ps->len = 0;
704 				if (len != 0) {
706 						if (len < 3) {
707 							len = 0;
710 							len -= 3;
716 						len -= 1;
721 					len = 0;
726 				if (temp > len) {
727 					len = 0;
742 						ps->len = 1;
744 						ps->len += temp;
750 					ps->len = temp;
760 						ps->len = 0;
770 						ps->len = 0;
780 					ps->len = 0;
784 				len -= temp;
794 	return (len_old - len);