/*
* POSIX does not allow lseek(2) on fifos, so we expect ESPIPE as a result.
*/
static void
test_lseek(void)
{
int reader_fd, writer_fd;
makefifo("testfifo", __func__);
if (openfifo("testfifo", __func__, &reader_fd, &writer_fd) < 0) {
warn("%s: openfifo", __func__);
cleanfifo("testfifo", -1, -1);
exit(-1);
}
if (lseek(reader_fd, 1, SEEK_CUR) >= 0) {
warnx("%s: lseek succeeded instead of returning ESPIPE",
__func__);
cleanfifo("testfifo", reader_fd, writer_fd);
exit(-1);
}
if (errno != ESPIPE) {
warn("%s: lseek returned instead of ESPIPE", __func__);
cleanfifo("testfifo", reader_fd, writer_fd);
exit(-1);
}
cleanfifo("testfifo", reader_fd, writer_fd);
}
/*
* Write one byte to an empty fifo, then try to read one byte and make sure
* we don't get back EAGAIN.
*/
static void
test_nonblocking_one_byte(void)
{
int reader_fd, ret, timedout, writer_fd;
ssize_t len;
u_char ch;
makefifo("testfifo", __func__);
if (openfifo("testfifo", __func__, &reader_fd, &writer_fd)
< 0) {
warn("test_nonblocking: openfifo: testfifo");
cleanfifo2("testfifo", -1, -1);
exit(-1);
}
if (set_nonblocking(reader_fd, __func__) < 0) {
cleanfifo2("testfifo", reader_fd, writer_fd);
exit(-1);
}
ch = 0xfe;
ret = timed_write(writer_fd, &ch, sizeof(ch), &len, 5, &timedout,
__func__);
if (ret < 0) {
warn("test_nonblocking_one_byte: timed_write");
cleanfifo2("testfifo", reader_fd, writer_fd);
exit(-1);
}
if (len != sizeof(ch)) {
warnx("test_nonblocking_one_byte: timed_write: tried to write "
"%zu, wrote %zd", sizeof(ch), len);
cleanfifo2("testfifo", reader_fd, writer_fd);
exit(-1);
}
ch = 0xab;
ret = timed_read(reader_fd, &ch, sizeof(ch), &len, 5, &timedout,
__func__);
if (ret < 0) {
warn("test_nonblocking_one_byte: timed_read");
cleanfifo2("testfifo", reader_fd, writer_fd);
exit(-1);
}
if (len != sizeof(ch)) {
warnx("test_nonblocking_one_byte: timed_read: wanted %zu, read "
"%zd", sizeof(ch), len);
cleanfifo2("testfifo", reader_fd, writer_fd);
exit(-1);
}
if (ch != 0xfe) {
warnx("test_nonblocking_one_byte: timed_read: expected to read "
"0x%02x, read 0x%02x", 0xfe, ch);
cleanfifo2("testfifo", reader_fd, writer_fd);
exit(-1);
}
cleanfifo2("testfifo", reader_fd, writer_fd);
}
/*
* Simple I/O test: write ten integers, and make sure we get back the same
* integers in the same order. This assumes a minimum fifo buffer > 10
* bytes in order to not block and deadlock.
*/
static void
test_simpleio(void)
{
int i, reader_fd, writer_fd;
u_char buffer[10];
ssize_t len;
makefifo("testfifo", __func__);
if (openfifo("testfifo", &reader_fd, &writer_fd)
< 0) {
warn("test_simpleio: openfifo: testfifo");
cleanfifo2("testfifo", -1, -1);
exit(-1);
}
for (i = 0; i < 10; i++)
buffer[i] = i;
len = write(writer_fd, (char *)buffer, sizeof(buffer));
if (len < 0) {
warn("test_simpleio: write");
cleanfifo2("testfifo", reader_fd, writer_fd);
exit(-1);
}
if (len != sizeof(buffer)) {
warnx("test_simplio: tried %zu but wrote %zd", sizeof(buffer),
len);
cleanfifo2("testfifo", reader_fd, writer_fd);
exit(-1);
}
len = read(reader_fd, (char *)buffer, sizeof(buffer));
if (len < 0) {
warn("test_simpleio: read");
cleanfifo2("testfifo", reader_fd, writer_fd);
exit(-1);
}
if (len != sizeof(buffer)) {
warnx("test_simpleio: tried %zu but read %zd", sizeof(buffer),
len);
cleanfifo2("testfifo", reader_fd, writer_fd);
exit(-1);
}
for (i = 0; i < 10; i++) {
if (buffer[i] == i)
continue;
warnx("test_simpleio: write byte %d as 0x%02x, but read "
"0x%02x", i, i, buffer[i]);
cleanfifo2("testfifo", reader_fd, writer_fd);
exit(-1);
}
cleanfifo2("testfifo", reader_fd, writer_fd);
}
/*
* First of two test cases involving a 512K buffer: write the buffer into a
* blocking file descriptor. We'd like to know it blocks, but the closest we
* can get is to see if SIGALRM fired during the I/O resulting in a partial
* write.
*/
static void
test_blocking_partial_write(void)
{
int reader_fd, ret, timedout, writer_fd;
u_char *buffer;
ssize_t len;
makefifo("testfifo", __func__);
if (openfifo("testfifo", __func__, &reader_fd, &writer_fd)
< 0) {
warn("test_blocking_partial_write: openfifo: testfifo");
cleanfifo2("testfifo", -1, -1);
exit(-1);
}
if (set_blocking(writer_fd, __func__) < 0) {
cleanfifo2("testfifo", reader_fd, writer_fd);
exit(-1);
}
buffer = malloc(512*1024);
if (buffer == NULL) {
warn("test_blocking_partial_write: malloc");
cleanfifo2("testfifo", reader_fd, writer_fd);
exit(-1);
}
bzero(buffer, 512*1024);
ret = timed_write(writer_fd, buffer, 512*1024, &len, 5, &timedout,
__func__);
if (ret < 0) {
warn("test_blocking_partial_write: timed_write");
free(buffer);
cleanfifo2("testfifo", reader_fd, writer_fd);
exit(-1);
}
if (!timedout) {
warnx("test_blocking_partial_write: timed_write: blocking "
"socket didn't time out");
free(buffer);
cleanfifo2("testfifo", reader_fd, writer_fd);
exit(-1);
}
free(buffer);
if (drain_fd(reader_fd, __func__) < 0) {
cleanfifo2("testfifo", reader_fd, writer_fd);
exit(-1);
}
cleanfifo2("testfifo", reader_fd, writer_fd);
}
/*
* test_events() uses poll(), select(), and kevent() to query the status of
* fifo file descriptors and determine whether they match expected state
* based on earlier semantic tests: specifically, whether or not poll/select/
* kevent will correctly inform on readable/writable state following I/O.
*
* It would be nice to also test status changes as a result of closing of one
* or another fifo endpoint.
*/
static void
test_events_outofbox(void)
{
int kqueue_fd, reader_fd, writer_fd;
makefifo("testfifo", __func__);
if (openfifo("testfifo", &reader_fd, &writer_fd) < 0) {
warn("test_events_outofbox: openfifo: testfifo");
cleanfifo2("testfifo", -1, -1);
exit(-1);
}
kqueue_fd = kqueue();
if (kqueue_fd < 0) {
warn("%s: kqueue", __func__);
cleanfifo2("testfifo", reader_fd, writer_fd);
exit(-1);
}
if (kqueue_setup(kqueue_fd, reader_fd, __func__) < 0) {
cleanfifo3("testfifo", reader_fd, writer_fd, kqueue_fd);
exit(-1);
}
if (kqueue_setup(kqueue_fd, writer_fd, __func__) < 0) {
cleanfifo3("testfifo", reader_fd, writer_fd, kqueue_fd);
exit(-1);
}
/*
* Make sure that fresh, out-of-the-box fifo file descriptors have
* good initial states. The reader_fd should have no active state,
* since it will not be readable (no data in pipe), writable (it's
* a read-only descriptor), and there's no reason for error yet.
*/
if (assert_status(reader_fd, kqueue_fd, NOT_READABLE, NOT_WRITABLE,
NOT_EXCEPTION, __func__, "create", "reader_fd") < 0) {
cleanfifo3("testfifo", reader_fd, writer_fd, kqueue_fd);
exit(-1);
}
/*
* Make sure that fresh, out-of-the-box fifo file descriptors have
* good initial states. The writer_fd should be ready to write.
*/
if (assert_status(writer_fd, kqueue_fd, NOT_READABLE, WRITABLE,
NOT_EXCEPTION, __func__, "create", "writer_fd") < 0) {
cleanfifo3("testfifo", reader_fd, writer_fd, kqueue_fd);
exit(-1);
}
cleanfifo3("testfifo", reader_fd, writer_fd, kqueue_fd);
}
/*
* truncate(2) on FIFO should silently return success.
*/
static void
test_truncate(void)
{
makefifo("testfifo", __func__);
if (truncate("testfifo", 1024) != 0) {
warn("%s: truncate", __func__);
cleanfifo("testfifo", -1, -1);
exit(-1);
}
cleanfifo("testfifo", -1, -1);
}
/*
* Setup standard FHS 2.3 structure in /var, and
* write runlevel to UTMP, needed by, e.g., printerdrake.
*/
static void setup(void *UNUSED(arg))
{
#ifdef RUNLEVEL
struct utmp entry;
#endif
_d("Setting up FHS structure in /var ...");
makedir("/var/cache", 0755);
makedir("/var/games", 0755);
makedir("/var/lib", 0755);
makedir("/var/lib/misc", 0755);
makedir("/var/lib/alarm", 0755);
makedir("/var/lock", 0755);
makedir("/var/log", 0755);
makedir("/var/mail", 0755);
makedir("/var/opt", 0755);
makedir("/var/run", 0755);
makedir("/var/spool", 0755);
makedir("/var/spool/cron", 0755);
makedir("/var/tmp", 0755);
makedir("/var/empty", 0755);
_d("Setting up necessary UTMP files ...");
touch("/var/run/utmp");
chown("/var/run/utmp", 0, getgroup("utmp"));
#ifdef RUNLEVEL
memset(&entry, 0, sizeof(struct utmp));
entry.ut_type = RUN_LVL;
entry.ut_pid = '0' + RUNLEVEL;
setutent();
pututline(&entry);
endutent();
#endif
#ifdef TOUCH_ETC_NETWORK_RUN_IFSTATE
touch("/etc/network/run/ifstate");
#else
erase("/etc/network/run/ifstate");
#endif
_d("Setting up misc files ...");
makedir("/var/run/lldpd", 0755); /* Needed by lldpd */
makedir("/var/run/pluto", 0755); /* Needed by Openswan */
makedir("/var/run/quagga", 0755); /* Needed by Quagga */
makedir("/var/log/quagga", 0755); /* Needed by Quagga */
makedir("/var/run/sshd", 01755); /* OpenSSH */
makefifo("/dev/xconsole", 0640); /* sysklogd */
chown("/dev/xconsole", 0, getgroup("tty"));
}
/*
* Test that various ioctls can be issued against the file descriptor. We
* don't currently test the semantics of these changes here.
*/
static void
test_ioctl(void)
{
int reader_fd, writer_fd;
makefifo("testfifo", __func__);
if (openfifo("testfifo", __func__, &reader_fd, &writer_fd) < 0) {
warn("%s: openfifo", __func__);
cleanfifo("testfifo", -1, -1);
exit(-1);
}
/*
* Set and remove the non-blocking I/O flag.
*/
if (test_ioctl_setclearflag(reader_fd, FIONBIO, __func__,
"reader_fd", "FIONBIO") < 0) {
cleanfifo("testfifo", reader_fd, writer_fd);
exit(-1);
}
if (test_ioctl_setclearflag(writer_fd, FIONBIO, __func__,
"writer_fd", "FIONBIO") < 0) {
cleanfifo("testfifo", reader_fd, writer_fd);
exit(-1);
}
/*
* Set and remove the async I/O flag.
*/
if (test_ioctl_setclearflag(reader_fd, FIOASYNC, __func__,
"reader_fd", "FIOASYNC") < 0) {
cleanfifo("testfifo", reader_fd, writer_fd);
exit(-1);
}
if (test_ioctl_setclearflag(writer_fd, FIOASYNC, __func__,
"writer_fd", "FIONASYNC") < 0) {
cleanfifo("testfifo", reader_fd, writer_fd);
exit(-1);
}
cleanfifo("testfifo", reader_fd, writer_fd);
}
int ask_passwd_cli(const char *manufacturer, const char *product,
const char *devnode)
{
int i = 0;
int ttys_notified = 0;
int MAX_PWD_ATTEMPTS = 0;
int passwd_match = 0;
char *tty = NULL;
char *username = NULL;
char *plain_txt_passwd = NULL;
char *fifo_path = NULL;
FILE *fp = NULL;
struct auth_len lengths;
MAX_PWD_ATTEMPTS = get_sield_attr_int("max password tries");
if (MAX_PWD_ATTEMPTS == -1) MAX_PWD_ATTEMPTS = 3;
ttys_notified = notify_all_ttys(manufacturer, product, devnode);
if (ttys_notified == 0) {
log_fn("No users are logged in. Ignoring %s (%s %s).",
devnode, manufacturer, product);
return 0;
}
log_fn("Wrote to %d tty(s) about device %s (%s %s). Awaiting response.",
ttys_notified, devnode, manufacturer, product);
fifo_path = makefifo(manufacturer, product, devnode);
if (fifo_path == NULL) return 0;
for (i = 0; (i < MAX_PWD_ATTEMPTS) && (passwd_match != 1); i++) {
/* Open the named pipe for reading. */
fp = fopen(fifo_path, "r");
if (fp == NULL) {
log_fn("fopen: %s: %s", fifo_path, strerror(errno));
free(fifo_path);
continue;
}
/* Lengths */
if (fread(&lengths, sizeof(struct auth_len), 1, fp) != 1) {
log_fn("Unable to read data (strlens) sent from CLI app.");
continue;
}
tty = malloc((lengths.tty_len + 1) * sizeof(char));
username = malloc((lengths.user_len + 1) * sizeof(char));
plain_txt_passwd = malloc((lengths.pwd_len + 1) * sizeof(char));
if ((fread(tty, sizeof(char),
lengths.tty_len + 1, fp) != lengths.tty_len + 1)
|| (fread(username, sizeof(char),
lengths.user_len + 1, fp) != lengths.user_len + 1)
|| (fread(plain_txt_passwd, sizeof(char),
lengths.pwd_len + 1, fp) != lengths.pwd_len + 1)) {
log_fn("Unable to read data sent from CLI app.");
if (tty) free(tty);
if (username) free(username);
if (plain_txt_passwd) free(plain_txt_passwd);
fclose(fp);
continue;
}
if (is_passwd_correct(plain_txt_passwd)) {
log_fn("%s (@%s) provided correct password.", username, tty);
write_to_tty(tty, "Password accepted.\n");
passwd_match = 1;
} else {
log_fn("%s (@%s) entered incorrect password. Attempt #%d",
username, tty, i+1);
write_to_tty(tty, "Incorrect password given.\n");
passwd_match = 0;
}
if (tty) free(tty);
if (username) free(username);
if (plain_txt_passwd) free(plain_txt_passwd);
fclose(fp);
}
if (passwd_match == 0) {
log_fn("Used all password attempts.");
}
/* Delete the associated named pipe. */
if (remove(fifo_path) == -1) {
log_fn("Unable to delete named pipe %s", fifo_path);
}
if (remove(FIFO_DIR) == -1) {
log_fn("Couldn't delete directory %s", FIFO_DIR);
}
if (fifo_path) free(fifo_path);
return passwd_match;
}
/*
* test_coalesce_big_write() verifies that data mingles in the fifo across
* message boundaries by performing one big write, then two smaller reads
* that should return sequential elements of data from the write.
*/
static void
test_coalesce_big_write(void)
{
int i, reader_fd, writer_fd;
u_char buffer[10];
ssize_t len;
makefifo("testfifo", __func__);
if (openfifo("testfifo", &reader_fd, &writer_fd) < 0) {
warn("test_coalesce_big_write: openfifo: testfifo");
cleanfifo2("testfifo", -1, -1);
exit(-1);
}
/* Write ten, read five, read five. */
for (i = 0; i < 10; i++)
buffer[i] = i;
len = write(writer_fd, buffer, 10);
if (len < 0) {
warn("test_coalesce_big_write: write 10");
cleanfifo2("testfifo", reader_fd, writer_fd);
exit(-1);
}
if (len != 10) {
warnx("test_coalesce_big_write: write 10 wrote %zd", len);
cleanfifo2("testfifo", reader_fd, writer_fd);
exit(-1);
}
len = read(reader_fd, buffer, 5);
if (len < 0) {
warn("test_coalesce_big_write: read 5");
cleanfifo2("testfifo", reader_fd, writer_fd);
exit(-1);
}
if (len != 5) {
warnx("test_coalesce_big_write: read 5 read %zd", len);
cleanfifo2("testfifo", reader_fd, writer_fd);
exit(-1);
}
len = read(reader_fd, buffer + 5, 5);
if (len < 0) {
warn("test_coalesce_big_write: read 5");
cleanfifo2("testfifo", reader_fd, writer_fd);
exit(-1);
}
if (len != 5) {
warnx("test_coalesce_big_write: read 5 read %zd", len);
cleanfifo2("testfifo", reader_fd, writer_fd);
exit(-1);
}
for (i = 0; i < 10; i++) {
if (buffer[i] == i)
continue;
warnx("test_coalesce_big_write: expected to read 0x%02x, "
"read 0x%02x", i, buffer[i]);
cleanfifo2("testfifo", reader_fd, writer_fd);
exit(-1);
}
cleanfifo2("testfifo", -1, -1);
}
/*
* Write a 512K buffer to an empty fifo using a non-blocking file descriptor,
* and make sure it doesn't block.
*/
static void
test_nonblocking_partial_write(void)
{
int reader_fd, ret, timedout, writer_fd;
u_char *buffer;
ssize_t len;
makefifo("testfifo", __func__);
if (openfifo("testfifo", &reader_fd, &writer_fd) < 0) {
warn("test_blocking_partial_write: openfifo: testfifo");
cleanfifo2("testfifo", -1, -1);
exit(-1);
}
if (set_nonblocking(writer_fd, __func__) < 0) {
cleanfifo2("testfifo", reader_fd, writer_fd);
exit(-1);
}
buffer = malloc(512*1024);
if (buffer == NULL) {
warn("test_blocking_partial_write: malloc");
cleanfifo2("testfifo", reader_fd, writer_fd);
exit(-1);
}
bzero(buffer, 512*1024);
ret = timed_write(writer_fd, buffer, 512*1024, &len, 5, &timedout,
__func__);
if (ret < 0) {
warn("test_blocking_partial_write: timed_write");
free(buffer);
cleanfifo2("testfifo", reader_fd, writer_fd);
exit(-1);
}
if (timedout) {
warnx("test_blocking_partial_write: timed_write: "
"non-blocking socket timed out");
free(buffer);
cleanfifo2("testfifo", reader_fd, writer_fd);
exit(-1);
}
if (len == 0 || len >= 512*1024) {
warnx("test_blocking_partial_write: timed_write: requested "
"%d, sent %zd", 512*1024, len);
free(buffer);
cleanfifo2("testfifo", reader_fd, writer_fd);
exit(-1);
}
free(buffer);
if (drain_fd(reader_fd, __func__) < 0) {
cleanfifo2("testfifo", reader_fd, writer_fd);
exit(-1);
}
cleanfifo2("testfifo", reader_fd, writer_fd);
}
/*
* This test operates on blocking and non-blocking fifo file descriptors, in
* order to determine whether they block at good moments or not. By good we
* mean: don't block for non-blocking sockets, and do block for blocking
* ones, assuming there isn't I/O buffer to satisfy the request.
*
* We use a timeout of 5 seconds, concluding that in 5 seconds either all I/O
* that can take place will, and that if we reach the end of the timeout,
* then blocking has occurred.
*
* We assume that the buffer size on a fifo is <512K, and as such, that
* writing that much data without an active reader will result in blocking.
*/
static void
test_blocking_read_empty(void)
{
int reader_fd, ret, timedout, writer_fd;
ssize_t len;
u_char ch;
makefifo("testfifo", __func__);
if (openfifo("testfifo", &reader_fd, &writer_fd)
< 0) {
warn("test_blocking_read_empty: openfifo: testfifo");
cleanfifo2("testfifo", -1, -1);
exit(-1);
}
/*
* Read one byte from an empty blocking fifo, block as there is no
* data.
*/
if (set_blocking(reader_fd, __func__) < 0) {
cleanfifo2("testfifo", reader_fd, writer_fd);
exit(-1);
}
ret = timed_read(reader_fd, &ch, sizeof(ch), &len, 5, &timedout,
__func__);
if (ret != -1) {
warnx("test_blocking_read_empty: timed_read: returned "
"success");
cleanfifo2("testfifo", reader_fd, writer_fd);
exit(-1);
}
if (errno != EINTR) {
warn("test_blocking_read_empty: timed_read");
cleanfifo2("testfifo", reader_fd, writer_fd);
exit(-1);
}
/*
* Read one byte from an empty non-blocking fifo, return EAGAIN as
* there is no data.
*/
if (set_nonblocking(reader_fd, __func__) < 0) {
cleanfifo2("testfifo", reader_fd, writer_fd);
exit(-1);
}
ret = timed_read(reader_fd, &ch, sizeof(ch), &len, 5, &timedout,
__func__);
if (ret != -1) {
warnx("test_blocking_read_empty: timed_read: returned "
"success");
cleanfifo2("testfifo", reader_fd, writer_fd);
exit(-1);
}
if (errno != EAGAIN) {
warn("test_blocking_read_empty: timed_read");
cleanfifo2("testfifo", reader_fd, writer_fd);
exit(-1);
}
cleanfifo2("testfifo", reader_fd, writer_fd);
}
/*
* We don't comprehensively test O_RDWR file descriptors, but do run a couple
* of event tests to make sure that the fifo implementation doesn't mixed up
* status checks. In particular, at least one past FreeBSD bug exists in
* which the FIONREAD test was performed on the wrong socket implementing the
* fifo, resulting in the fifo never returning readable.
*/
static void
test_events_rdwr(void)
{
int fd, kqueue_fd;
ssize_t len;
char ch;
makefifo("testfifo", __func__);
if (openfifo_rw("testfifo", &fd) < 0) {
warn("%s: openfifo_rw: testfifo", __func__);
cleanfifo2("testfifo", -1, -1);
exit(-1);
}
kqueue_fd = kqueue();
if (kqueue_fd < 0) {
warn("%s: kqueue", __func__);
cleanfifo2("testifo", fd, -1);
exit(-1);
}
if (kqueue_setup(kqueue_fd, fd, __func__) < 0) {
cleanfifo2("testfifo", fd, kqueue_fd);
exit(-1);
}
/*
* On first creation, the O_RDWR descriptor should be writable but
* not readable.
*/
if (assert_status(fd, kqueue_fd, NOT_READABLE, WRITABLE,
NOT_EXCEPTION, __func__, "create", "fd") < 0) {
cleanfifo2("testfifo", fd, kqueue_fd);
exit(-1);
}
/*
* Write a byte, which should cause the file descriptor to become
* readable and writable.
*/
ch = 0x00;
len = write(fd, &ch, sizeof(ch));
if (len < 0) {
warn("%s: write", __func__);
cleanfifo2("testfifo", fd, kqueue_fd);
exit(-1);
}
if (assert_status(fd, kqueue_fd, READABLE, WRITABLE, NOT_EXCEPTION,
__func__, "write", "fd") < 0) {
cleanfifo2("testfifo", fd, kqueue_fd);
exit(-1);
}
/*
* Read a byte, which should cause the file descriptor to return to
* simply being writable.
*/
len = read(fd, &ch, sizeof(ch));
if (len < 0) {
warn("%s: read", __func__);
cleanfifo2("testfifo", fd, kqueue_fd);
exit(-1);
}
if (assert_status(fd, kqueue_fd, NOT_READABLE, WRITABLE,
NOT_EXCEPTION, __func__, "write+read", "fd") < 0) {
cleanfifo2("testfifo", fd, kqueue_fd);
exit(-1);
}
cleanfifo2("testfifo", fd, kqueue_fd);
}
/*
* Write a 512k buffer to the fifo in non-blocking mode, and make sure that
* the write end becomes un-writable as a result of a partial write that
* fills the fifo buffer.
*/
static void
test_events_partial_write(void)
{
int kqueue_fd, reader_fd, writer_fd;
u_char *buffer;
ssize_t len;
makefifo("testfifo", __func__);
if (openfifo("testfifo", &reader_fd, &writer_fd) < 0) {
warn("test_events_partial_write: openfifo: testfifo");
cleanfifo2("testfifo", -1, -1);
exit(-1);
}
kqueue_fd = kqueue();
if (kqueue_fd < 0) {
warn("%s: kqueue", __func__);
cleanfifo2("testfifo", reader_fd, writer_fd);
exit(-1);
}
if (kqueue_setup(kqueue_fd, reader_fd, __func__) < 0) {
cleanfifo3("testfifo", reader_fd, writer_fd, kqueue_fd);
exit(-1);
}
if (kqueue_setup(kqueue_fd, writer_fd, __func__) < 0) {
cleanfifo3("testfifo", reader_fd, writer_fd, kqueue_fd);
exit(-1);
}
if (set_nonblocking(writer_fd, "test_events") < 0) {
cleanfifo3("testfifo", reader_fd, writer_fd, kqueue_fd);
exit(-1);
}
buffer = malloc(512*1024);
if (buffer == NULL) {
warn("test_events_partial_write: malloc");
cleanfifo3("testfifo", reader_fd, writer_fd, kqueue_fd);
exit(-1);
}
bzero(buffer, 512*1024);
len = write(writer_fd, buffer, 512*1024);
if (len < 0) {
warn("test_events_partial_write: write");
free(buffer);
cleanfifo3("testfifo", reader_fd, writer_fd, kqueue_fd);
exit(-1);
}
free(buffer);
if (assert_status(writer_fd, kqueue_fd, NOT_READABLE, NOT_WRITABLE,
NOT_EXCEPTION, __func__, "big write", "writer_fd") < 0) {
cleanfifo3("testfifo", reader_fd, writer_fd, kqueue_fd);
exit(-1);
}
if (drain_fd(reader_fd, "test_events") < 0) {
cleanfifo3("testfifo", reader_fd, writer_fd, kqueue_fd);
exit(-1);
}
/*
* Test that the writer_fd has been restored to writable state after
* draining.
*/
if (assert_status(writer_fd, kqueue_fd, NOT_READABLE, WRITABLE,
NOT_EXCEPTION, __func__, "big write + drain", "writer_fd") < 0) {
cleanfifo3("testfifo", reader_fd, writer_fd, kqueue_fd);
exit(-1);
}
cleanfifo3("testfifo", reader_fd, writer_fd, kqueue_fd);
}
static void
test_events_write_read_byte(void)
{
int kqueue_fd, reader_fd, writer_fd;
ssize_t len;
u_char ch;
makefifo("testfifo", __func__);
if (openfifo("testfifo", &reader_fd, &writer_fd) < 0) {
warn("test_events_write_read_byte: openfifo: testfifo");
cleanfifo2("testfifo", -1, -1);
exit(-1);
}
kqueue_fd = kqueue();
if (kqueue_fd < 0) {
warn("%s: kqueue", __func__);
cleanfifo2("testfifo", reader_fd, writer_fd);
exit(-1);
}
if (kqueue_setup(kqueue_fd, reader_fd, __func__) < 0) {
cleanfifo3("testfifo", reader_fd, writer_fd, kqueue_fd);
exit(-1);
}
if (kqueue_setup(kqueue_fd, writer_fd, __func__) < 0) {
cleanfifo3("testfifo", reader_fd, writer_fd, kqueue_fd);
exit(-1);
}
/*
* Write a byte to the fifo, and make sure that the read end becomes
* readable, and that the write end remains writable (small write).
*/
ch = 0x00;
len = write(writer_fd, &ch, sizeof(ch));
if (len < 0) {
warn("%s: write", __func__);
cleanfifo3("testfifo", reader_fd, writer_fd, kqueue_fd);
exit(-1);
}
if (assert_status(reader_fd, kqueue_fd, READABLE, NOT_WRITABLE,
NOT_EXCEPTION, __func__, "write", "reader_fd") < 0) {
cleanfifo3("testfifo", reader_fd, writer_fd, kqueue_fd);
exit(-1);
}
/*
* the writer_fd should remain writable.
*/
if (assert_status(writer_fd, kqueue_fd, NOT_READABLE, WRITABLE,
NOT_EXCEPTION, __func__, "write", "writer_fd") < 0) {
cleanfifo3("testfifo", reader_fd, writer_fd, kqueue_fd);
exit(-1);
}
/*
* Read the byte from the reader_fd, and now confirm that that fifo
* becomes unreadable.
*/
len = read(reader_fd, &ch, sizeof(ch));
if (len < 0) {
warn("%s: read", __func__);
cleanfifo3("testfifo", reader_fd, writer_fd, kqueue_fd);
exit(-1);
}
if (assert_status(reader_fd, kqueue_fd, NOT_READABLE, NOT_WRITABLE,
NOT_EXCEPTION, __func__, "write+read", "reader_fd") < 0) {
cleanfifo3("testfifo", reader_fd, writer_fd, kqueue_fd);
exit(-1);
}
/*
* The writer_fd should remain writable.
*/
if (assert_status(writer_fd, kqueue_fd, NOT_READABLE, WRITABLE,
NOT_EXCEPTION, __func__, "write+read", "writer_fd") < 0) {
cleanfifo3("testfifo", reader_fd, writer_fd, kqueue_fd);
exit(-1);
}
cleanfifo3("testfifo", reader_fd, writer_fd, kqueue_fd);
}
