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authorLennart Poettering <lennart@poettering.net>2014-02-13 14:59:56 +0100
committerLennart Poettering <lennart@poettering.net>2014-02-13 14:59:56 +0100
commitc8a202b7d47f9d6bba3100a208abdadfc383499e (patch)
treed19560cf0723f8e2305170881eb442b5ecb12b0d
parent955d98c9c1104d469c2989dbfb58f58ee6fe9bdc (diff)
everywhere: always use O_CLOEXEC where it makes sense
-rw-r--r--src/bootchart/bootchart.c8
-rw-r--r--src/bootchart/store.c2
-rw-r--r--src/fsck/fsck.c2
-rw-r--r--src/shared/fileio.c2
-rw-r--r--src/shared/sleep-config.c2
-rw-r--r--src/udev/accelerometer/accelerometer.c2
-rw-r--r--src/udev/ata_id/ata_id.c2
-rw-r--r--src/udev/cdrom_id/cdrom_id.c2
-rw-r--r--src/udev/collect/collect.c2
-rw-r--r--src/udev/mtd_probe/mtd_probe.c2
-rw-r--r--src/udev/scsi_id/scsi_serial.c4
-rw-r--r--src/udev/udev-builtin-btrfs.c5
-rw-r--r--src/udev/udevadm-trigger.c2
-rw-r--r--src/udev/udevd.c2
14 files changed, 19 insertions, 20 deletions
diff --git a/src/bootchart/bootchart.c b/src/bootchart/bootchart.c
index 630f9c5d15..305a31ae94 100644
--- a/src/bootchart/bootchart.c
+++ b/src/bootchart/bootchart.c
@@ -259,7 +259,7 @@ static void do_journal_append(char *file) {
memcpy(p, "BOOTCHART=", 10);
- f = open(file, O_RDONLY);
+ f = open(file, O_RDONLY|O_CLOEXEC);
if (f < 0) {
log_error("Failed to read bootchart data: %m");
return;
@@ -356,11 +356,11 @@ int main(int argc, char *argv[]) {
t = time(NULL);
strftime(datestr, sizeof(datestr), "%Y%m%d-%H%M", localtime(&t));
snprintf(output_file, PATH_MAX, "%s/bootchart-%s.svg", arg_output_path, datestr);
- of = fopen(output_file, "w");
+ of = fopen(output_file, "we");
}
if (sysfd < 0)
- sysfd = open("/sys", O_RDONLY);
+ sysfd = open("/sys", O_RDONLY|O_CLOEXEC);
if (!build)
parse_env_file("/etc/os-release", NEWLINE,
@@ -424,7 +424,7 @@ int main(int argc, char *argv[]) {
t = time(NULL);
strftime(datestr, sizeof(datestr), "%Y%m%d-%H%M", localtime(&t));
snprintf(output_file, PATH_MAX, "%s/bootchart-%s.svg", arg_output_path, datestr);
- of = fopen(output_file, "w");
+ of = fopen(output_file, "we");
}
if (!of) {
diff --git a/src/bootchart/store.c b/src/bootchart/store.c
index 3e0052d212..78c5cf85ec 100644
--- a/src/bootchart/store.c
+++ b/src/bootchart/store.c
@@ -61,7 +61,7 @@ void log_uptime(void) {
char str[32];
double uptime;
- f = fopen("/proc/uptime", "r");
+ f = fopen("/proc/uptime", "re");
if (!f)
return;
diff --git a/src/fsck/fsck.c b/src/fsck/fsck.c
index 9170768cec..8facc88bb4 100644
--- a/src/fsck/fsck.c
+++ b/src/fsck/fsck.c
@@ -155,7 +155,7 @@ static int process_progress(int fd) {
return -errno;
}
- console = fopen("/dev/console", "w");
+ console = fopen("/dev/console", "we");
if (!console)
return -ENOMEM;
diff --git a/src/shared/fileio.c b/src/shared/fileio.c
index b81eeb272a..0d3f2e90c7 100644
--- a/src/shared/fileio.c
+++ b/src/shared/fileio.c
@@ -130,7 +130,7 @@ ssize_t sendfile_full(int out_fd, const char *fn) {
assert(out_fd > 0);
assert(fn);
- f = fopen(fn, "r");
+ f = fopen(fn, "re");
if (!f)
return -errno;
diff --git a/src/shared/sleep-config.c b/src/shared/sleep-config.c
index 70a0896069..b9b6643066 100644
--- a/src/shared/sleep-config.c
+++ b/src/shared/sleep-config.c
@@ -174,7 +174,7 @@ static int hibernation_partition_size(size_t *size, size_t *used) {
assert(size);
assert(used);
- f = fopen("/proc/swaps", "r");
+ f = fopen("/proc/swaps", "re");
if (!f) {
log_full(errno == ENOENT ? LOG_DEBUG : LOG_WARNING,
"Failed to retrieve open /proc/swaps: %m");
diff --git a/src/udev/accelerometer/accelerometer.c b/src/udev/accelerometer/accelerometer.c
index babd66f6b5..925d38de1f 100644
--- a/src/udev/accelerometer/accelerometer.c
+++ b/src/udev/accelerometer/accelerometer.c
@@ -197,7 +197,7 @@ static void test_orientation(struct udev *udev,
old = get_prev_orientation(dev);
- fd = open(devpath, O_RDONLY);
+ fd = open(devpath, O_RDONLY|O_CLOEXEC);
if (fd < 0)
return;
diff --git a/src/udev/ata_id/ata_id.c b/src/udev/ata_id/ata_id.c
index 649890618e..f84281dd1a 100644
--- a/src/udev/ata_id/ata_id.c
+++ b/src/udev/ata_id/ata_id.c
@@ -468,7 +468,7 @@ int main(int argc, char *argv[])
goto exit;
}
- fd = open(node, O_RDONLY|O_NONBLOCK);
+ fd = open(node, O_RDONLY|O_NONBLOCK|O_CLOEXEC);
if (fd < 0) {
log_error("unable to open '%s'", node);
rc = 1;
diff --git a/src/udev/cdrom_id/cdrom_id.c b/src/udev/cdrom_id/cdrom_id.c
index 02a4d399e7..93467c2d35 100644
--- a/src/udev/cdrom_id/cdrom_id.c
+++ b/src/udev/cdrom_id/cdrom_id.c
@@ -930,7 +930,7 @@ int main(int argc, char *argv[])
for (cnt = 20; cnt > 0; cnt--) {
struct timespec duration;
- fd = open(node, O_RDONLY|O_NONBLOCK|(is_mounted(node) ? 0 : O_EXCL));
+ fd = open(node, O_RDONLY|O_NONBLOCK|O_CLOEXEC|(is_mounted(node) ? 0 : O_EXCL));
if (fd >= 0 || errno != EBUSY)
break;
duration.tv_sec = 0;
diff --git a/src/udev/collect/collect.c b/src/udev/collect/collect.c
index cb5df01c6a..4ecb6b0d19 100644
--- a/src/udev/collect/collect.c
+++ b/src/udev/collect/collect.c
@@ -95,7 +95,7 @@ static int prepare(char *dir, char *filename)
snprintf(buf, sizeof(buf), "%s/%s", dir, filename);
- fd = open(buf,O_RDWR|O_CREAT, S_IRUSR|S_IWUSR);
+ fd = open(buf,O_RDWR|O_CREAT|O_CLOEXEC, S_IRUSR|S_IWUSR);
if (fd < 0)
fprintf(stderr, "Cannot open %s: %m\n", buf);
diff --git a/src/udev/mtd_probe/mtd_probe.c b/src/udev/mtd_probe/mtd_probe.c
index 70c04db40b..13c757bd1c 100644
--- a/src/udev/mtd_probe/mtd_probe.c
+++ b/src/udev/mtd_probe/mtd_probe.c
@@ -37,7 +37,7 @@ int main(int argc, char** argv)
return 1;
}
- mtd_fd = open(argv[1], O_RDONLY);
+ mtd_fd = open(argv[1], O_RDONLY|O_CLOEXEC);
if (mtd_fd == -1) {
perror("open");
exit(-1);
diff --git a/src/udev/scsi_id/scsi_serial.c b/src/udev/scsi_id/scsi_serial.c
index 2f2afcee6e..378a73d863 100644
--- a/src/udev/scsi_id/scsi_serial.c
+++ b/src/udev/scsi_id/scsi_serial.c
@@ -818,7 +818,7 @@ int scsi_std_inquiry(struct udev *udev,
struct stat statbuf;
int err = 0;
- fd = open(devname, O_RDONLY | O_NONBLOCK);
+ fd = open(devname, O_RDONLY | O_NONBLOCK | O_CLOEXEC);
if (fd < 0) {
log_debug("scsi_id: cannot open %s: %m", devname);
return 1;
@@ -866,7 +866,7 @@ int scsi_get_serial(struct udev *udev,
for (cnt = 20; cnt > 0; cnt--) {
struct timespec duration;
- fd = open(devname, O_RDONLY | O_NONBLOCK);
+ fd = open(devname, O_RDONLY | O_NONBLOCK | O_CLOEXEC);
if (fd >= 0 || errno != EBUSY)
break;
duration.tv_sec = 0;
diff --git a/src/udev/udev-builtin-btrfs.c b/src/udev/udev-builtin-btrfs.c
index f7bea69b26..2baafe6131 100644
--- a/src/udev/udev-builtin-btrfs.c
+++ b/src/udev/udev-builtin-btrfs.c
@@ -38,19 +38,18 @@ struct btrfs_ioctl_vol_args {
static int builtin_btrfs(struct udev_device *dev, int argc, char *argv[], bool test)
{
struct btrfs_ioctl_vol_args args;
- int fd;
+ _cleanup_close_ int fd = -1;
int err;
if (argc != 3 || !streq(argv[1], "ready"))
return EXIT_FAILURE;
- fd = open("/dev/btrfs-control", O_RDWR);
+ fd = open("/dev/btrfs-control", O_RDWR|O_CLOEXEC);
if (fd < 0)
return EXIT_FAILURE;
strscpy(args.name, sizeof(args.name), argv[2]);
err = ioctl(fd, BTRFS_IOC_DEVICES_READY, &args);
- close(fd);
if (err < 0)
return EXIT_FAILURE;
diff --git a/src/udev/udevadm-trigger.c b/src/udev/udevadm-trigger.c
index 087ee4bfae..0ee27bb408 100644
--- a/src/udev/udevadm-trigger.c
+++ b/src/udev/udevadm-trigger.c
@@ -51,7 +51,7 @@ static void exec_list(struct udev_enumerate *udev_enumerate, const char *action)
if (dry_run)
continue;
strscpyl(filename, sizeof(filename), udev_list_entry_get_name(entry), "/uevent", NULL);
- fd = open(filename, O_WRONLY);
+ fd = open(filename, O_WRONLY|O_CLOEXEC);
if (fd < 0)
continue;
if (write(fd, action, strlen(action)) < 0)
diff --git a/src/udev/udevd.c b/src/udev/udevd.c
index 9d7fa033b6..f21c227d17 100644
--- a/src/udev/udevd.c
+++ b/src/udev/udevd.c
@@ -734,7 +734,7 @@ static int handle_inotify(struct udev *udev)
log_debug("device %s closed, synthesising 'change'", udev_device_get_devnode(dev));
strscpyl(filename, sizeof(filename), udev_device_get_syspath(dev), "/uevent", NULL);
- fd = open(filename, O_WRONLY);
+ fd = open(filename, O_WRONLY|O_CLOEXEC);
if (fd >= 0) {
if (write(fd, "change", 6) < 0)
log_debug("error writing uevent: %m");