MFC r282067:

Integrate tools/regression/fifo into the FreeBSD test suite as tests/sys/fifo
and tools/regression/file into the FreeBSD test suite as tests/sys/file

1 files changed, 386 insertions, 0 deletions

diff --git a/tests/sys/file/dup_test.c b/tests/sys/file/dup_test.c
new file mode 100644
index 0000000..8173818
--- /dev/null
+++ b/tests/sys/file/dup_test.c
@@ -0,0 +1,386 @@
+/*
+ * $OpenBSD: dup2test.c,v 1.3 2003/07/31 21:48:08 deraadt Exp $
+ * $OpenBSD: dup2_self.c,v 1.3 2003/07/31 21:48:08 deraadt Exp $
+ * $OpenBSD: fcntl_dup.c,v 1.2 2003/07/31 21:48:08 deraadt Exp $
+ *
+ * Written by Artur Grabowski <art@openbsd.org> 2002 Public Domain.
+ *
+ * $FreeBSD$
+ */
+
+/*
+ * Test #1:  check if dup(2) works.
+ * Test #2:  check if dup2(2) works.
+ * Test #3:  check if dup2(2) returned a fd we asked for.
+ * Test #4:  check if dup2(2) cleared close-on-exec flag for duped fd.
+ * Test #5:  check if dup2(2) allows to dup fd to itself.
+ * Test #6:  check if dup2(2) returned a fd we asked for.
+ * Test #7:  check if dup2(2) did not clear close-on-exec flag for duped fd.
+ * Test #8:  check if fcntl(F_DUPFD) works.
+ * Test #9:  check if fcntl(F_DUPFD) cleared close-on-exec flag for duped fd.
+ * Test #10: check if dup2() to a fd > current maximum number of open files
+ *           limit work.
+ * Test #11: check if fcntl(F_DUP2FD) works.
+ * Test #12: check if fcntl(F_DUP2FD) returned a fd we asked for.
+ * Test #13: check if fcntl(F_DUP2FD) cleared close-on-exec flag for duped fd.
+ * Test #14: check if fcntl(F_DUP2FD) allows to dup fd to itself.
+ * Test #15: check if fcntl(F_DUP2FD) returned a fd we asked for.
+ * Test #16: check if fcntl(F_DUP2FD) did not clear close-on-exec flag for
+ *           duped fd.
+ * Test #17: check if fcntl(F_DUP2FD) to a fd > current maximum number of open
+ *           files limit work.
+ * Test #18: check if fcntl(F_DUPFD_CLOEXEC) works.
+ * Test #19: check if fcntl(F_DUPFD_CLOEXEC) set close-on-exec flag for duped
+ *           fd.
+ * Test #20: check if fcntl(F_DUP2FD_CLOEXEC) works.
+ * Test #21: check if fcntl(F_DUP2FD_CLOEXEC) returned a fd we asked for.
+ * Test #22: check if fcntl(F_DUP2FD_CLOEXEC) set close-on-exec flag for duped
+ *           fd.
+ * Test #23: check if fcntl(F_DUP2FD_CLOEXEC) to a fd > current maximum number
+ *           of open files limit work.
+ * Test #24: check if dup3(O_CLOEXEC) works.
+ * Test #25: check if dup3(O_CLOEXEC) returned a fd we asked for.
+ * Test #26: check if dup3(O_CLOEXEC) set close-on-exec flag for duped fd.
+ * Test #27: check if dup3(0) works.
+ * Test #28: check if dup3(0) returned a fd we asked for.
+ * Test #29: check if dup3(0) cleared close-on-exec flag for duped fd.
+ * Test #30: check if dup3(O_CLOEXEC) fails if oldfd == newfd.
+ * Test #31: check if dup3(0) fails if oldfd == newfd.
+ * Test #32: check if dup3(O_CLOEXEC) to a fd > current maximum number of
+ *           open files limit work.
+ */
+
+#include <sys/types.h>
+#include <sys/time.h>
+#include <sys/resource.h>
+
+#include <err.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+static int	getafile(void);
+
+static int
+getafile(void)
+{
+	int fd;
+
+	char temp[] = "/tmp/dup2XXXXXXXXX";
+	if ((fd = mkstemp(temp)) < 0)
+		err(1, "mkstemp");
+	remove(temp);
+	if (ftruncate(fd, 1024) != 0)
+		err(1, "ftruncate");
+	return (fd);
+}
+
+int
+main(int __unused argc, char __unused *argv[])
+{
+	struct rlimit rlp;
+	int orgfd, fd1, fd2, test = 0;
+
+	orgfd = getafile();
+
+	printf("1..32\n");
+
+	/* If dup(2) ever work? */
+	if ((fd1 = dup(orgfd)) < 0)
+		err(1, "dup");
+	printf("ok %d - dup(2) works\n", ++test);
+
+	/* Set close-on-exec */
+	if (fcntl(fd1, F_SETFD, 1) != 0)
+		err(1, "fcntl(F_SETFD)");
+
+	/* If dup2(2) ever work? */
+	if ((fd2 = dup2(fd1, fd1 + 1)) < 0)
+		err(1, "dup2");
+	printf("ok %d - dup2(2) works\n", ++test);
+
+	/* Do we get the right fd? */
+	++test;
+	if (fd2 != fd1 + 1)
+		printf("no ok %d - dup2(2) didn't give us the right fd\n",
+		    test);
+	else
+		printf("ok %d - dup2(2) returned a correct fd\n", test);
+
+	/* Was close-on-exec cleared? */
+	++test;
+	if (fcntl(fd2, F_GETFD) != 0)
+		printf("not ok %d - dup2(2) didn't clear close-on-exec\n",
+		    test);
+	else
+		printf("ok %d - dup2(2) cleared close-on-exec\n", test);
+
+	/*
+	 * Dup to itself.
+	 *
+	 * We're testing a small tweak in dup2 semantics.
+	 * Normally dup and dup2 will clear the close-on-exec
+	 * flag on the new fd (which appears to be an implementation
+	 * mistake from start and not some planned behavior).
+	 * In today's implementations of dup and dup2 we have to make
+	 * an effort to really clear that flag.  But all tested
+	 * implementations of dup2 have another tweak.  If we
+	 * dup2(old, new) when old == new, the syscall short-circuits
+	 * and returns early (because there is no need to do all the
+	 * work (and there is a risk for serious mistakes)).
+	 * So although the docs say that dup2 should "take 'old',
+	 * close 'new' perform a dup(2) of 'old' into 'new'"
+	 * the docs are not really followed because close-on-exec
+	 * is not cleared on 'new'.
+	 *
+	 * Since everyone has this bug, we pretend that this is
+	 * the way it is supposed to be and test here that it really
+	 * works that way.
+	 *
+	 * This is a fine example on where two separate implementation
+	 * fuckups take out each other and make the end-result the way
+	 * it was meant to be.
+	 */
+	if ((fd2 = dup2(fd1, fd1)) < 0)
+		err(1, "dup2");
+	printf("ok %d - dup2(2) to itself works\n", ++test);
+
+	/* Do we get the right fd? */
+	++test;
+	if (fd2 != fd1)
+		printf("not ok %d - dup2(2) didn't give us the right fd\n",
+		    test);
+	else
+		printf("ok %d - dup2(2) to itself returned a correct fd\n",
+		    test);
+
+	/* Was close-on-exec cleared? */
+	++test;
+	if (fcntl(fd2, F_GETFD) == 0)
+		printf("not ok %d - dup2(2) cleared close-on-exec\n", test);
+	else
+		printf("ok %d - dup2(2) didn't clear close-on-exec\n", test);
+
+	/* Does fcntl(F_DUPFD) work? */
+	if ((fd2 = fcntl(fd1, F_DUPFD, 10)) < 0)
+		err(1, "fcntl(F_DUPFD)");
+	if (fd2 < 10)
+		printf("not ok %d - fcntl(F_DUPFD) returned wrong fd %d\n",
+		    ++test, fd2);
+	else
+		printf("ok %d - fcntl(F_DUPFD) works\n", ++test);
+
+	/* Was close-on-exec cleared? */
+	++test;
+        if (fcntl(fd2, F_GETFD) != 0)
+		printf(
+		    "not ok %d - fcntl(F_DUPFD) didn't clear close-on-exec\n",
+		    test);
+	else
+		printf("ok %d - fcntl(F_DUPFD) cleared close-on-exec\n", test);
+
+	++test;
+	if (getrlimit(RLIMIT_NOFILE, &rlp) < 0)
+		err(1, "getrlimit");
+	if ((fd2 = dup2(fd1, rlp.rlim_cur + 1)) >= 0)
+		printf("not ok %d - dup2(2) bypassed NOFILE limit\n", test);
+	else
+		printf("ok %d - dup2(2) didn't bypass NOFILE limit\n", test);
+
+	/* If fcntl(F_DUP2FD) ever work? */
+	if ((fd2 = fcntl(fd1, F_DUP2FD, fd1 + 1)) < 0)
+		err(1, "fcntl(F_DUP2FD)");
+	printf("ok %d - fcntl(F_DUP2FD) works\n", ++test);
+
+	/* Do we get the right fd? */
+	++test;
+	if (fd2 != fd1 + 1)
+		printf(
+		    "no ok %d - fcntl(F_DUP2FD) didn't give us the right fd\n",
+		    test);
+	else
+		printf("ok %d - fcntl(F_DUP2FD) returned a correct fd\n",
+		    test);
+
+	/* Was close-on-exec cleared? */
+	++test;
+	if (fcntl(fd2, F_GETFD) != 0)
+		printf(
+		    "not ok %d - fcntl(F_DUP2FD) didn't clear close-on-exec\n",
+		    test);
+	else
+		printf("ok %d - fcntl(F_DUP2FD) cleared close-on-exec\n",
+		    test);
+
+	/* Dup to itself */
+	if ((fd2 = fcntl(fd1, F_DUP2FD, fd1)) < 0)
+		err(1, "fcntl(F_DUP2FD)");
+	printf("ok %d - fcntl(F_DUP2FD) to itself works\n", ++test);
+
+	/* Do we get the right fd? */
+	++test;
+	if (fd2 != fd1)
+		printf(
+		    "not ok %d - fcntl(F_DUP2FD) didn't give us the right fd\n",
+		    test);
+	else
+		printf(
+		    "ok %d - fcntl(F_DUP2FD) to itself returned a correct fd\n",
+		    test);
+
+	/* Was close-on-exec cleared? */
+	++test;
+	if (fcntl(fd2, F_GETFD) == 0)
+		printf("not ok %d - fcntl(F_DUP2FD) cleared close-on-exec\n",
+		    test);
+	else
+		printf("ok %d - fcntl(F_DUP2FD) didn't clear close-on-exec\n",
+		    test);
+
+	++test;
+	if (getrlimit(RLIMIT_NOFILE, &rlp) < 0)
+		err(1, "getrlimit");
+	if ((fd2 = fcntl(fd1, F_DUP2FD, rlp.rlim_cur + 1)) >= 0)
+		printf("not ok %d - fcntl(F_DUP2FD) bypassed NOFILE limit\n",
+		    test);
+	else
+		printf("ok %d - fcntl(F_DUP2FD) didn't bypass NOFILE limit\n",
+		    test);
+
+	/* Does fcntl(F_DUPFD_CLOEXEC) work? */
+	if ((fd2 = fcntl(fd1, F_DUPFD_CLOEXEC, 10)) < 0)
+		err(1, "fcntl(F_DUPFD_CLOEXEC)");
+	if (fd2 < 10)
+		printf("not ok %d - fcntl(F_DUPFD_CLOEXEC) returned wrong fd %d\n",
+		    ++test, fd2);
+	else
+		printf("ok %d - fcntl(F_DUPFD_CLOEXEC) works\n", ++test);
+
+	/* Was close-on-exec cleared? */
+	++test;
+        if (fcntl(fd2, F_GETFD) != 1)
+		printf(
+		    "not ok %d - fcntl(F_DUPFD_CLOEXEC) didn't set close-on-exec\n",
+		    test);
+	else
+		printf("ok %d - fcntl(F_DUPFD_CLOEXEC) set close-on-exec\n",
+		    test);
+
+	/* If fcntl(F_DUP2FD_CLOEXEC) ever work? */
+	if ((fd2 = fcntl(fd1, F_DUP2FD_CLOEXEC, fd1 + 1)) < 0)
+		err(1, "fcntl(F_DUP2FD_CLOEXEC)");
+	printf("ok %d - fcntl(F_DUP2FD_CLOEXEC) works\n", ++test);
+
+	/* Do we get the right fd? */
+	++test;
+	if (fd2 != fd1 + 1)
+		printf(
+		    "no ok %d - fcntl(F_DUP2FD_CLOEXEC) didn't give us the right fd\n",
+		    test);
+	else
+		printf("ok %d - fcntl(F_DUP2FD_CLOEXEC) returned a correct fd\n",
+		    test);
+
+	/* Was close-on-exec set? */
+	++test;
+	if (fcntl(fd2, F_GETFD) != FD_CLOEXEC)
+		printf(
+		    "not ok %d - fcntl(F_DUP2FD_CLOEXEC) didn't set close-on-exec\n",
+		    test);
+	else
+		printf("ok %d - fcntl(F_DUP2FD_CLOEXEC) set close-on-exec\n",
+		    test);
+
+	/*
+	 * It is unclear what F_DUP2FD_CLOEXEC should do when duplicating a
+	 * file descriptor onto itself.
+	 */
+
+	++test;
+	if (getrlimit(RLIMIT_NOFILE, &rlp) < 0)
+		err(1, "getrlimit");
+	if ((fd2 = fcntl(fd1, F_DUP2FD_CLOEXEC, rlp.rlim_cur + 1)) >= 0)
+		printf("not ok %d - fcntl(F_DUP2FD_CLOEXEC) bypassed NOFILE limit\n",
+		    test);
+	else
+		printf("ok %d - fcntl(F_DUP2FD_CLOEXEC) didn't bypass NOFILE limit\n",
+		    test);
+
+	/* Does dup3(O_CLOEXEC) ever work? */
+	if ((fd2 = dup3(fd1, fd1 + 1, O_CLOEXEC)) < 0)
+		err(1, "dup3(O_CLOEXEC)");
+	printf("ok %d - dup3(O_CLOEXEC) works\n", ++test);
+
+	/* Do we get the right fd? */
+	++test;
+	if (fd2 != fd1 + 1)
+		printf(
+		    "no ok %d - dup3(O_CLOEXEC) didn't give us the right fd\n",
+		    test);
+	else
+		printf("ok %d - dup3(O_CLOEXEC) returned a correct fd\n",
+		    test);
+
+	/* Was close-on-exec set? */
+	++test;
+	if (fcntl(fd2, F_GETFD) != FD_CLOEXEC)
+		printf(
+		    "not ok %d - dup3(O_CLOEXEC) didn't set close-on-exec\n",
+		    test);
+	else
+		printf("ok %d - dup3(O_CLOEXEC) set close-on-exec\n",
+		    test);
+
+	/* Does dup3(0) ever work? */
+	if ((fd2 = dup3(fd1, fd1 + 1, 0)) < 0)
+		err(1, "dup3(0)");
+	printf("ok %d - dup3(0) works\n", ++test);
+
+	/* Do we get the right fd? */
+	++test;
+	if (fd2 != fd1 + 1)
+		printf(
+		    "no ok %d - dup3(0) didn't give us the right fd\n",
+		    test);
+	else
+		printf("ok %d - dup3(0) returned a correct fd\n",
+		    test);
+
+	/* Was close-on-exec cleared? */
+	++test;
+	if (fcntl(fd2, F_GETFD) != 0)
+		printf(
+		    "not ok %d - dup3(0) didn't clear close-on-exec\n",
+		    test);
+	else
+		printf("ok %d - dup3(0) cleared close-on-exec\n",
+		    test);
+
+	/* dup3() does not allow duplicating to the same fd */
+	++test;
+	if (dup3(fd1, fd1, O_CLOEXEC) != -1)
+		printf(
+		    "not ok %d - dup3(fd1, fd1, O_CLOEXEC) succeeded\n", test);
+	else
+		printf("ok %d - dup3(fd1, fd1, O_CLOEXEC) failed\n", test);
+
+	++test;
+	if (dup3(fd1, fd1, 0) != -1)
+		printf(
+		    "not ok %d - dup3(fd1, fd1, 0) succeeded\n", test);
+	else
+		printf("ok %d - dup3(fd1, fd1, 0) failed\n", test);
+
+	++test;
+	if (getrlimit(RLIMIT_NOFILE, &rlp) < 0)
+		err(1, "getrlimit");
+	if ((fd2 = dup3(fd1, rlp.rlim_cur + 1, O_CLOEXEC)) >= 0)
+		printf("not ok %d - dup3(O_CLOEXEC) bypassed NOFILE limit\n",
+		    test);
+	else
+		printf("ok %d - dup3(O_CLOEXEC) didn't bypass NOFILE limit\n",
+		    test);
+
+	return (0);
+}