sockets/unix_passfd/unix_passfd.c

42  * data", or control messages.  This regression test is intended to exercise
45  * there are cyclic file descriptor references.  Right now we test only with
46  * stream sockets, but ideally we'd also test with datagram sockets.
50 domainsocketpair(const char *test, int *fdp)
54 		err(-1, "%s: socketpair(PF_UNIX, SOCK_STREAM)", test);
66 devnull(const char *test, int *fdp)
72 		err(-1, "%s: open(/dev/null)", test);
77 tempfile(const char *test, int *fdp)
85 		err(-1, "%s: mkstemp(%s)", test, path);
91 dofstat(const char *test, int fd, struct stat *sb)
95 		err(-1, "%s: fstat", test);
99 samefile(const char *test, struct stat *sb1, struct stat *sb2)
103 		errx(-1, "%s: samefile: different device", test);
105 		errx(-1, "%s: samefile: different inode", test);
109 sendfd(const char *test, int sockfd, int sendfd)
140 		err(-1, "%s: sendmsg", test);
142 		errx(-1, "%s: sendmsg: %zd bytes sent", test, len);
146 recvfd(const char *test, int sockfd, int *recvfd)
174 		err(-1, "%s: recvmsg", test);
176 		errx(-1, "%s: recvmsg: %zd bytes received", test, len);
179 		errx(-1, "%s: recvmsg: did not receive control message", test);
184 		    test);
187 		errx(-1, "%s: recvmsg: received fd -1", test);
195 	const char *test;
198 	 * First test: put a temporary file into a UNIX domain socket, then
202 	test = "test1-simplesendfd";
203 	printf("beginning %s\n", test);
205 	domainsocketpair(test, fd);
206 	tempfile(test, &putfd_1);
207 	dofstat(test, putfd_1, &putfd_1_stat);
208 	sendfd(test, fd[0], putfd_1);
209 	recvfd(test, fd[1], &getfd_1);
210 	dofstat(test, getfd_1, &getfd_1_stat);
211 	samefile(test, &putfd_1_stat, &getfd_1_stat);
216 	printf("%s passed\n", test);
219 	 * Second test: same as first, only close the file reference after
223 	test = "test2-sendandclose";
224 	printf("beginning %s\n", test);
226 	domainsocketpair(test, fd);
227 	tempfile(test, &putfd_1);
228 	dofstat(test, putfd_1, &putfd_1_stat);
229 	sendfd(test, fd[0], putfd_1);
231 	recvfd(test, fd[1], &getfd_1);
232 	dofstat(test, getfd_1, &getfd_1_stat);
233 	samefile(test, &putfd_1_stat, &getfd_1_stat);
237 	printf("%s passed\n", test);
240 	 * Third test: put a temporary file into a UNIX domain socket, then
243 	test = "test3-sendandcancel";
244 	printf("beginning %s\n", test);
246 	domainsocketpair(test, fd);
247 	tempfile(test, &putfd_1);
248 	sendfd(test, fd[0], putfd_1);
252 	printf("%s passed\n", test);
259 	test = "test4-twofile";
260 	printf("beginning %s\n", test);
262 	domainsocketpair(test, fd);
263 	tempfile(test, &putfd_1);
264 	tempfile(test, &putfd_2);
265 	dofstat(test, putfd_1, &putfd_1_stat);
266 	dofstat(test, putfd_2, &putfd_2_stat);
267 	sendfd(test, fd[0], putfd_1);
268 	sendfd(test, fd[0], putfd_2);
271 	recvfd(test, fd[1], &getfd_1);
272 	recvfd(test, fd[1], &getfd_2);
273 	dofstat(test, getfd_1, &getfd_1_stat);
274 	dofstat(test, getfd_2, &getfd_2_stat);
275 	samefile(test, &putfd_1_stat, &getfd_1_stat);
276 	samefile(test, &putfd_2_stat, &getfd_2_stat);
281 	printf("%s passed\n", test);
284 	 * Big bundling test.  Send an endpoint of the UNIX domain socket
288 	test = "test5-bundle";
289 	printf("beginning %s\n", test);
291 	domainsocketpair(test, fd);
293 	sendfd(test, fd[0], fd[0]);
295 	recvfd(test, fd[1], &getfd_1);
299 	printf("%s passed\n", test);
302 	 * Big bundling test part two: Send an endpoint of the UNIX domain
307 	test = "test6-bundlecancel";
308 	printf("beginning %s\n", test);
310 	domainsocketpair(test, fd);
311 	sendfd(test, fd[0], fd[0]);
312 	sendfd(test, fd[1], fd[0]);
315 	printf("%s passed\n", test);
323 	test = "test7-devfsorphan";
324 	printf("beginning %s\n", test);
326 	domainsocketpair(test, fd);
327 	devnull(test, &putfd_1);
328 	sendfd(test, fd[0], putfd_1);
332 	printf("%s passed\n", test);