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[src/trunk]: src Add couple of simple tests for dup(2).
details: https://anonhg.NetBSD.org/src/rev/bff454daf161
branches: trunk
changeset: 763713:bff454daf161
user: jruoho <jruoho%NetBSD.org@localhost>
date: Thu Mar 31 15:47:56 2011 +0000
description:
Add couple of simple tests for dup(2).
diffstat:
distrib/sets/lists/tests/mi | 4 +-
tests/syscall/Makefile | 4 +-
tests/syscall/t_dup.c | 179 ++++++++++++++++++++++++++++++++++++++++++++
3 files changed, 184 insertions(+), 3 deletions(-)
diffs (224 lines):
diff -r d517bea72cec -r bff454daf161 distrib/sets/lists/tests/mi
--- a/distrib/sets/lists/tests/mi Thu Mar 31 15:46:30 2011 +0000
+++ b/distrib/sets/lists/tests/mi Thu Mar 31 15:47:56 2011 +0000
@@ -1,4 +1,4 @@
-# $NetBSD: mi,v 1.282 2011/03/31 13:07:20 jruoho Exp $
+# $NetBSD: mi,v 1.283 2011/03/31 15:47:56 jruoho Exp $
#
# Note: don't delete entries from here - mark them as "obsolete" instead.
#
@@ -562,6 +562,7 @@
./usr/libdata/debug/usr/tests/sbin/resize_ffs tests-sbin-tests
./usr/libdata/debug/usr/tests/syscall tests-syscall-debug
./usr/libdata/debug/usr/tests/syscall/t_cmsg.debug tests-syscall-debug debug,atf
+./usr/libdata/debug/usr/tests/syscall/t_dup.debug tests-syscall-debug debug,atf
./usr/libdata/debug/usr/tests/syscall/t_fsync.debug tests-syscall-debug debug,atf
./usr/libdata/debug/usr/tests/syscall/t_mmap.debug tests-syscall-debug debug,atf
./usr/libdata/debug/usr/tests/syscall/t_timer.debug tests-syscall-debug debug,atf
@@ -2096,6 +2097,7 @@
./usr/tests/syscall tests-syscall-tests
./usr/tests/syscall/Atffile tests-syscall-tests atf
./usr/tests/syscall/t_cmsg tests-syscall-tests atf
+./usr/tests/syscall/t_dup tests-syscall-tests atf
./usr/tests/syscall/t_fsync tests-syscall-tests atf
./usr/tests/syscall/t_mmap tests-syscall-tests atf
./usr/tests/syscall/t_timer tests-syscall-tests atf
diff -r d517bea72cec -r bff454daf161 tests/syscall/Makefile
--- a/tests/syscall/Makefile Thu Mar 31 15:46:30 2011 +0000
+++ b/tests/syscall/Makefile Thu Mar 31 15:47:56 2011 +0000
@@ -1,10 +1,10 @@
-# $NetBSD: Makefile,v 1.11 2011/03/31 13:07:20 jruoho Exp $
+# $NetBSD: Makefile,v 1.12 2011/03/31 15:47:57 jruoho Exp $
.include <bsd.own.mk>
TESTSDIR= ${TESTSBASE}/syscall
-TESTS_C+= t_cmsg t_fsync t_mmap t_timer
+TESTS_C+= t_cmsg t_dup t_fsync t_mmap t_timer
LDADD.t_cmsg+= -lrumpnet_local -lrumpnet_net -lrumpnet
LDADD.t_cmsg+= -lrumpvfs -lrump -lrumpuser -lpthread
diff -r d517bea72cec -r bff454daf161 tests/syscall/t_dup.c
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/tests/syscall/t_dup.c Thu Mar 31 15:47:56 2011 +0000
@@ -0,0 +1,179 @@
+/* $NetBSD: t_dup.c,v 1.1 2011/03/31 15:47:56 jruoho Exp $ */
+
+/*-
+ * Copyright (c) 2011 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to The NetBSD Foundation
+ * by Jukka Ruohonen.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+#include <sys/cdefs.h>
+__RCSID("$NetBSD: t_dup.c,v 1.1 2011/03/31 15:47:56 jruoho Exp $");
+
+#include <sys/stat.h>
+
+#include <errno.h>
+#include <fcntl.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#include <stdio.h>
+
+#include <atf-c.h>
+
+static char path[] = "/tmp/dup";
+
+ATF_TC(dup_err);
+ATF_TC_HEAD(dup_err, tc)
+{
+ atf_tc_set_md_var(tc, "descr", "Test error conditions of dup(2)");
+}
+
+ATF_TC_BODY(dup_err, tc)
+{
+ ATF_REQUIRE(dup(-1) != 0);
+}
+
+ATF_TC_WITH_CLEANUP(dup_max);
+ATF_TC_HEAD(dup_max, tc)
+{
+ atf_tc_set_md_var(tc, "descr", "Test dup(2) against limits");
+}
+
+ATF_TC_BODY(dup_max, tc)
+{
+ int current, fd, *buf, serrno;
+ long i, maxfd;
+
+ /*
+ * Open a temporary file until the
+ * maximum number of open files is
+ * reached. Ater that dup(2) should
+ * fail with EMFILE.
+ */
+ maxfd = sysconf(_SC_OPEN_MAX);
+ ATF_REQUIRE(maxfd >= 0);
+
+ buf = calloc(maxfd, sizeof(int));
+
+ if (buf == NULL)
+ return;
+
+ buf[0] = mkstemp(path);
+ ATF_REQUIRE(buf[0] != -1);
+
+ current = fcntl(0, F_MAXFD);
+ ATF_REQUIRE(current != -1);
+
+ fd = -1;
+ serrno = EMFILE;
+
+ for (i = current; i <= maxfd; i++) {
+
+ buf[i] = open(path, O_RDONLY);
+
+ if (buf[i] < 0)
+ goto out;
+ }
+
+ errno = 0;
+ fd = dup(buf[0]);
+ serrno = errno;
+
+out:
+ for (i = 0; i <= maxfd; i++)
+ (void)close(buf[i]);
+
+ free(buf);
+
+ if (fd != -1 || serrno != EMFILE)
+ atf_tc_fail("dup(2) dupped more than _SC_OPEN_MAX");
+}
+
+ATF_TC_CLEANUP(dup_max, tc)
+{
+ (void)unlink(path);
+}
+
+ATF_TC_WITH_CLEANUP(dup_mode);
+ATF_TC_HEAD(dup_mode, tc)
+{
+ atf_tc_set_md_var(tc, "descr", "A basic test of dup(2)");
+}
+
+ATF_TC_BODY(dup_mode, tc)
+{
+ int mode[3] = { O_RDONLY, O_WRONLY, O_RDWR };
+ int perm[5] = { 0700, 0400, 0600, 0444, 0666 };
+ struct stat st1, st2;
+ int fd1, fd2;
+ size_t i, j;
+
+ /*
+ * Check that a duplicated descriptor
+ * retains the mode of the original file.
+ */
+ for (i = 0; i < __arraycount(mode); i++) {
+
+ for (j = 0; j < __arraycount(perm); j++) {
+
+ fd1 = open(path, mode[i] | O_CREAT, perm[j]);
+
+ if (fd1 < 0)
+ return;
+
+ fd2 = dup(fd1);
+ ATF_REQUIRE(fd2 >= 0);
+
+ (void)memset(&st1, 0, sizeof(struct stat));
+ (void)memset(&st2, 0, sizeof(struct stat));
+
+ ATF_REQUIRE(fstat(fd1, &st1) == 0);
+ ATF_REQUIRE(fstat(fd2, &st2) == 0);
+
+ if (st1.st_mode != st2.st_mode)
+ atf_tc_fail("invalid mode");
+
+ ATF_REQUIRE(close(fd1) == 0);
+ ATF_REQUIRE(close(fd2) == 0);
+ ATF_REQUIRE(unlink(path) == 0);
+ }
+ }
+}
+
+ATF_TC_CLEANUP(dup_mode, tc)
+{
+ (void)unlink(path);
+}
+
+ATF_TP_ADD_TCS(tp)
+{
+
+ ATF_TP_ADD_TC(tp, dup_err);
+ ATF_TP_ADD_TC(tp, dup_max);
+ ATF_TP_ADD_TC(tp, dup_mode);
+
+ return atf_no_error();
+}
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