974 	struct pollfd pfd;  in timeout_connect()  local
980 		pfd.fd = s;  in timeout_connect()
981 		pfd.events = POLLOUT;  in timeout_connect()
982 		if ((ret = poll(&pfd, 1, timeout)) == 1) {  in timeout_connect()
1062 	struct pollfd pfd[4];  in readwrite()  local
1077 	pfd[POLL_STDIN].fd = stdin_fd;  in readwrite()
1078 	pfd[POLL_STDIN].events = POLLIN;  in readwrite()
1081 	pfd[POLL_NETOUT].fd = net_fd;  in readwrite()
1082 	pfd[POLL_NETOUT].events = 0;  in readwrite()
1085 	pfd[POLL_NETIN].fd = net_fd;  in readwrite()
1086 	pfd[POLL_NETIN].events = POLLIN;  in readwrite()
1089 	pfd[POLL_STDOUT].fd = stdout_fd;  in readwrite()
1090 	pfd[POLL_STDOUT].events = 0;  in readwrite()
1094 		if (pfd[POLL_STDIN].fd == -1 && pfd[POLL_NETIN].fd == -1 &&  in readwrite()
1100 		if (pfd[POLL_NETOUT].fd == -1 && pfd[POLL_STDOUT].fd == -1) {  in readwrite()
1105 		if (lflag && pfd[POLL_NETIN].fd == -1 &&  in readwrite()
1118 		num_fds = poll(pfd, 4, timeout);  in readwrite()
1132 			if (pfd[n].revents & (POLLERR|POLLNVAL)) {  in readwrite()
1133 				pfd[n].fd = -1;  in readwrite()
1137 		if (pfd[POLL_STDIN].events & POLLIN &&  in readwrite()
1138 		    pfd[POLL_STDIN].revents & POLLHUP &&  in readwrite()
1139 		    !(pfd[POLL_STDIN].revents & POLLIN))  in readwrite()
1140 			pfd[POLL_STDIN].fd = -1;  in readwrite()
1142 		if (pfd[POLL_NETIN].events & POLLIN &&  in readwrite()
1143 		    pfd[POLL_NETIN].revents & POLLHUP &&  in readwrite()
1144 		    !(pfd[POLL_NETIN].revents & POLLIN))  in readwrite()
1145 			pfd[POLL_NETIN].fd = -1;  in readwrite()
1147 		if (pfd[POLL_NETOUT].revents & POLLHUP) {  in readwrite()
1149 				shutdown(pfd[POLL_NETOUT].fd, SHUT_WR);  in readwrite()
1150 			pfd[POLL_NETOUT].fd = -1;  in readwrite()
1153 		if (pfd[POLL_STDOUT].revents & POLLHUP)  in readwrite()
1154 			pfd[POLL_STDOUT].fd = -1;  in readwrite()
1156 		if (pfd[POLL_NETOUT].fd == -1)  in readwrite()
1157 			pfd[POLL_STDIN].fd = -1;  in readwrite()
1159 		if (pfd[POLL_STDOUT].fd == -1) {  in readwrite()
1160 			if (pfd[POLL_NETIN].fd != -1)  in readwrite()
1161 				shutdown(pfd[POLL_NETIN].fd, SHUT_RD);  in readwrite()
1162 			pfd[POLL_NETIN].fd = -1;  in readwrite()
1166 		if (pfd[POLL_STDIN].revents & POLLIN && stdinbufpos < BUFSIZE) {  in readwrite()
1167 			ret = fillbuf(pfd[POLL_STDIN].fd, stdinbuf,  in readwrite()
1170 				pfd[POLL_STDIN].events = POLLIN;  in readwrite()
1172 				pfd[POLL_STDIN].events = POLLOUT;  in readwrite()
1174 				pfd[POLL_STDIN].fd = -1;  in readwrite()
1177 				pfd[POLL_NETOUT].events = POLLOUT;  in readwrite()
1180 				pfd[POLL_STDIN].events = 0;  in readwrite()
1183 		if (pfd[POLL_NETOUT].revents & POLLOUT && stdinbufpos > 0) {  in readwrite()
1184 			ret = drainbuf(pfd[POLL_NETOUT].fd, stdinbuf,  in readwrite()
1187 				pfd[POLL_NETOUT].events = POLLIN;  in readwrite()
1189 				pfd[POLL_NETOUT].events = POLLOUT;  in readwrite()
1191 				pfd[POLL_NETOUT].fd = -1;  in readwrite()
1194 				pfd[POLL_NETOUT].events = 0;  in readwrite()
1197 				pfd[POLL_STDIN].events = POLLIN;  in readwrite()
1200 		if (pfd[POLL_NETIN].revents & POLLIN && netinbufpos < BUFSIZE) {  in readwrite()
1201 			ret = fillbuf(pfd[POLL_NETIN].fd, netinbuf,  in readwrite()
1204 				pfd[POLL_NETIN].events = POLLIN;  in readwrite()
1206 				pfd[POLL_NETIN].events = POLLOUT;  in readwrite()
1208 				pfd[POLL_NETIN].fd = -1;  in readwrite()
1211 				shutdown(pfd[POLL_NETIN].fd, SHUT_RD);  in readwrite()
1212 				pfd[POLL_NETIN].fd = -1;  in readwrite()
1216 				pfd[POLL_STDOUT].events = POLLOUT;  in readwrite()
1219 				pfd[POLL_NETIN].events = 0;  in readwrite()
1222 				atelnet(pfd[POLL_NETIN].fd, netinbuf,  in readwrite()
1226 		if (pfd[POLL_STDOUT].revents & POLLOUT && netinbufpos > 0) {  in readwrite()
1227 			ret = drainbuf(pfd[POLL_STDOUT].fd, netinbuf,  in readwrite()
1230 				pfd[POLL_STDOUT].events = POLLIN;  in readwrite()
1232 				pfd[POLL_STDOUT].events = POLLOUT;  in readwrite()
1234 				pfd[POLL_STDOUT].fd = -1;  in readwrite()
1237 				pfd[POLL_STDOUT].events = 0;  in readwrite()
1240 				pfd[POLL_NETIN].events = POLLIN;  in readwrite()
1244 		if (pfd[POLL_STDIN].fd == -1 && stdinbufpos == 0) {  in readwrite()
1245 			if (pfd[POLL_NETOUT].fd != -1 && Nflag)  in readwrite()
1246 				shutdown(pfd[POLL_NETOUT].fd, SHUT_WR);  in readwrite()
1247 			pfd[POLL_NETOUT].fd = -1;  in readwrite()
1250 		if (pfd[POLL_NETIN].fd == -1 && netinbufpos == 0) {  in readwrite()
1251 			pfd[POLL_STDOUT].fd = -1;  in readwrite()
1323 	struct pollfd pfd;  in fdpass()  local
1346 	bzero(&pfd, sizeof(pfd));  in fdpass()
1347 	pfd.fd = STDOUT_FILENO;  in fdpass()
1348 	pfd.events = POLLOUT;  in fdpass()
1353 				if (poll(&pfd, 1, -1) == -1)  in fdpass()