132 	int fd;  in devnull()  local
134 	fd = open(_PATH_DEVNULL, O_RDONLY);  in devnull()
135 	if (fd < 0)  in devnull()
137 	return (fd);  in devnull()
145 	int fd, flags, i, start;  in main()  local
149 	/* We'd better start up with fd's 0, 1, and 2 open. */  in main()
156 	fd = highest_fd();  in main()
157 	if (start != fd)  in main()
158 		fail("highest_fd", "bad descriptor %d != %d", start, fd);  in main()
161 	/* Try to use closefrom() for just closing fd 3. */  in main()
163 	fd = highest_fd();  in main()
164 	if (fd != start)  in main()
165 		fail("closefrom", "highest fd %d", fd);  in main()
171 	fd = highest_fd();  in main()
172 	if (fd != start + 16)  in main()
173 		fail("open 16", "highest fd %d", fd);  in main()
178 	fd = highest_fd();  in main()
179 	if (fd != 10)  in main()
180 		fail("closefrom", "highest fd %d", fd);  in main()
202 	fd = highest_fd();  in main()
203 	if (fd != 3)  in main()
204 		fail("closefrom", "highest fd %d", fd);  in main()
221 		fd = highest_fd();  in main()
222 		if (fd >= 0)  in main()
223 			cfail(info, "closefrom(0)", "highest fd %d", fd);  in main()
239 		fd = highest_fd();  in main()
240 		if (fd >= 0)  in main()
241 			cfail(info, "closefrom(-1)", "highest fd %d", fd);  in main()
253 	fd = highest_fd();  in main()
254 	if (fd != 6)  in main()
255 		fail("dup2", "highest fd %d", fd);  in main()
260 	fd = highest_fd();  in main()
261 	if (fd != 3)  in main()
262 		fail("closefrom", "highest fd %d", fd);  in main()
265 	/* Do a closefrom() beyond our highest open fd. */  in main()
267 	fd = highest_fd();  in main()
268 	if (fd != 3)  in main()
269 		fail("closefrom", "highest fd %d", fd);  in main()
272 	/* Chew up another 8 fd */  in main()
275 	fd = highest_fd();  in main()
276 	start = fd - 7;  in main()
293 	if ((i = highest_fd()) != fd)  in main()
294 		fail("close_range", "highest fd %d", i);  in main()
300 		fail("close_range", "highest fd %d", i);  in main()
305 	fd = highest_fd();  in main()
306 	if (fd != 3)  in main()
307 		fail("close_range", "highest fd %d", fd);  in main()
329 	fd = highest_fd();  in main()
330 	start = fd - 8;  in main()
338 		    "when it should not have on fd %d", start);  in main()
345 			    "close-on-exec on fd %d", i);  in main()
353 			    "when it should not have on fd %d", i);  in main()