1425 	register int	savefd;  in sh_iosave()  local
1429 	for(savefd=shp->topfd; --savefd>=oldtop; )  in sh_iosave()
1431 		if(filemap[savefd].orig_fd == origfd)  in sh_iosave()
1446 			for(savefd=shp->lim.open_max+2; --savefd>=0; )  in sh_iosave()
1448 			for(savefd=shp->lim.open_max; --savefd>=0; )  in sh_iosave()
1451 				cp = (char*)shp->fdptrs[savefd];  in sh_iosave()
1453 					shp->fdptrs[savefd] = (int*)(oldptr+moved);  in sh_iosave()
1460 		savefd = origfd;  in sh_iosave()
1466 		if((savefd = sh_fcntl(origfd, F_DUPFD, 10)) < 0 && errno!=EBADF)  in sh_iosave()
1476 	filemap[shp->topfd++].save_fd = savefd;  in sh_iosave()
1477 	if(savefd >=0)  in sh_iosave()
1481 		sh_fcntl(savefd,F_SETFD,FD_CLOEXEC);  in sh_iosave()
1483 			job.fd = savefd;  in sh_iosave()
1484 		shp->fdstatus[savefd] = shp->fdstatus[origfd];  in sh_iosave()
1485 		shp->fdptrs[savefd] = &filemap[shp->topfd-1].save_fd;  in sh_iosave()
1486 		if(!(shp->sftable[savefd]=sp))  in sh_iosave()
1493 			shp->sftable[savefd] = sp;  in sh_iosave()
1505 	register int fd, savefd, newfd;  in sh_iounsave()  local
1508 		if((savefd = filemap[fd].save_fd)< 0)  in sh_iounsave()
1512 			shp->sftable[savefd] = 0;  in sh_iounsave()
1513 			sh_close(savefd);  in sh_iounsave()
1524 	register int 	origfd, savefd, fd;  in sh_iorestore()  local
1533 			if ((savefd = filemap[fd].save_fd) >= 0)  in sh_iorestore()
1535 				shp->sftable[savefd] = 0;  in sh_iorestore()
1536 				sh_close(savefd);  in sh_iorestore()
1546 		if ((savefd = filemap[fd].save_fd) >= 0)  in sh_iorestore()
1548 			sh_fcntl(savefd, F_DUPFD, origfd);  in sh_iorestore()
1549 			if(savefd==job.fd)  in sh_iorestore()
1551 			shp->fdstatus[origfd] = shp->fdstatus[savefd];  in sh_iorestore()
1557 				sfswap(shp->sftable[savefd],shp->sftable[origfd]);  in sh_iorestore()
1562 				shp->sftable[origfd] = shp->sftable[savefd];  in sh_iorestore()
1563 			shp->sftable[savefd] = 0;  in sh_iorestore()
1564 			sh_close(savefd);  in sh_iorestore()