Open a few files, execve a script in which counting
the fd that still open.
Signed-off-by: Xiong Zhou <xzhou@xxxxxxxxxx>
---
.gitignore | 1 +
src/Makefile | 2 +-
src/t_cloexec.c | 41 +++++++++++++++++++++++++++++++
src/t_cloexec.sh | 2 ++
tests/generic/438 | 67 +++++++++++++++++++++++++++++++++++++++++++++++++++
tests/generic/438.out | 10 ++++++++
tests/generic/group | 1 +
7 files changed, 123 insertions(+), 1 deletion(-)
create mode 100644 src/t_cloexec.c
create mode 100755 src/t_cloexec.sh
create mode 100755 tests/generic/438
create mode 100644 tests/generic/438.out
diff --git a/.gitignore b/.gitignore
index a6ac25e..f754256 100644
--- a/.gitignore
+++ b/.gitignore
@@ -150,6 +150,7 @@
/src/t_mmap_dio
/src/t_mmap_stale_pmd
/src/t_mmap_cow_race
+/src/t_cloexec
# dmapi/ binaries
/dmapi/src/common/cmd/read_invis
diff --git a/src/Makefile b/src/Makefile
index 4ec0197..ddcd2b0 100644
--- a/src/Makefile
+++ b/src/Makefile
@@ -13,7 +13,7 @@ TARGETS = dirstress fill fill2 getpagesize holes lstat64 \
multi_open_unlink dmiperf unwritten_sync genhashnames t_holes \
t_mmap_writev t_truncate_cmtime dirhash_collide t_rename_overwrite \
holetest t_truncate_self t_mmap_dio af_unix t_mmap_stale_pmd \
- t_mmap_cow_race
+ t_mmap_cow_race t_cloexec
LINUX_TARGETS = xfsctl bstat t_mtab getdevicesize preallo_rw_pattern_reader \
preallo_rw_pattern_writer ftrunc trunc fs_perms testx looptest \
diff --git a/src/t_cloexec.c b/src/t_cloexec.c
new file mode 100644
index 0000000..3b3a008
--- /dev/null
+++ b/src/t_cloexec.c
@@ -0,0 +1,41 @@
+/*
+ * open(2) flag O_CLOEXEC sanity check.
+ */
+#include <stdio.h>
+#include <stdlib.h>
+#include <err.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <unistd.h>
+
+int main(int argc, char ** argv)
+{
+ int fds[8];
+ int i;
+ char fn[50];
+ long nc = 0;
+ char *newargv[] = { "src/t_cloexec.sh", NULL };
+ char *newenv[] = { NULL };
+
+ /* argv[2] : how many files opened with O_CLOEXEC */
+ nc= strtol(argv[2], NULL, 10);
+
+ for (i = 0; i < 8; i++) {
+
+ /* argv[1] : mountpoint being tested */
+ sprintf(fn, "%s/test_file%d", argv[1], i);
+ if (i < nc)
+ fds[i] = open(fn, O_RDONLY|O_CLOEXEC);
+ else
+ fds[i] = open(fn, O_RDONLY);
+ if (fds[i] == -1)
+ err(1, "open %s", fn);
+ }
+
+ /* exec to close fds*/
+ i = execve("src/t_cloexec.sh", newargv, newenv);
+ if (i == -1)
+ perror("execve");
+ return 0;
+}
diff --git a/src/t_cloexec.sh b/src/t_cloexec.sh
new file mode 100755
index 0000000..bdcbaf8
--- /dev/null
+++ b/src/t_cloexec.sh
@@ -0,0 +1,2 @@
+#!/bin/bash
+ls -1 /proc/self/fd/ | wc -l
diff --git a/tests/generic/438 b/tests/generic/438
new file mode 100755
index 0000000..1e58901
--- /dev/null
+++ b/tests/generic/438
@@ -0,0 +1,67 @@
+#! /bin/bash
+# FS QA Test 438
+#
+# Sanity check for open(2) flag O_CLOEXEC.
+#
+#-----------------------------------------------------------------------
+# Copyright (c) 2017 Red Hat Inc. All Rights Reserved.
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it would be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write the Free Software Foundation,
+# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+#-----------------------------------------------------------------------
+#
+
+seq=`basename $0`
+seqres=$RESULT_DIR/$seq
+echo "QA output created by $seq"
+
+here=`pwd`
+tmp=/tmp/$$
+status=1 # failure is the default!
+trap "_cleanup; exit \$status" 0 1 2 3 15
+
+_cleanup()
+{
+ cd /
+ rm -f $tmp.*
+}
+
+# get standard environment, filters and checks
+. ./common/rc
+. ./common/filter
+
+# Modify as appropriate.
+_supported_fs generic
+_supported_os Linux
+_require_scratch
+
+# remove previous $seqres.full before test
+rm -f $seqres.full
+
+# real QA test starts here
+
+for i in `seq 0 8` ; do
+ touch $SCRATCH_MNT/test_file$i
+done
+
+for i in `seq 0 8` ; do
+ src/t_cloexec $SCRATCH_MNT $i
+done
+
+for i in `seq 0 8` ; do
+ rm -f $SCRATCH_MNT/test_file$i
+done
+
+# success, all done
+status=0
+exit
diff --git a/tests/generic/438.out b/tests/generic/438.out
new file mode 100644
index 0000000..56f0ed2
--- /dev/null
+++ b/tests/generic/438.out
@@ -0,0 +1,10 @@
+QA output created by 438
+12
+11
+10
+9
+8
+7
+6
+5
+4
diff --git a/tests/generic/group b/tests/generic/group
index 438c299..d88f5bb 100644
--- a/tests/generic/group
+++ b/tests/generic/group
@@ -440,3 +440,4 @@
435 auto encrypt
436 auto quick rw
437 auto quick
+438 auto quick
--
1.8.3.1
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