MessagePumpLibevent::~MessagePumpLibevent() {
assert(wakeup_event_);
assert(event_base_);
event_del(wakeup_event_);
delete wakeup_event_;
if (wakeup_pipe_in_ >= 0) {
if (IGNORE_EINTR(close(wakeup_pipe_in_)) < 0)
std::cerr << "close wakeup_pipe_in_";
}
if (wakeup_pipe_out_ >= 0) {
if (IGNORE_EINTR(close(wakeup_pipe_out_)) < 0)
std::cerr << "close wakeup_pipe_out_";
}
event_base_free(event_base_);
}
void DrainerObject::closeSocket() {
#ifdef _WIN32
closesocket(mSocket);
#else
IGNORE_EINTR(close(mSocket));
#endif
}
static void
AlwaysClose(int fd)
{
if (IGNORE_EINTR(close(fd)) != 0) {
SANDBOX_LOG_ERROR("close: %s", strerror(errno));
MOZ_CRASH("failed to close()");
}
}
void socketClose(int socket) {
int save_errno = errno;
#ifdef _WIN32
::closesocket(socket);
#else
IGNORE_EINTR(::close(socket));
#endif
errno = save_errno;
}
int file_write(int fd, void *buf, size_t sz)
{
struct iovec iov[1];
ssize_t ret;
iov[0].iov_base = buf;
iov[0].iov_len = sz;
ret = IGNORE_EINTR (pwritev (fd, iov, 1, 0));
if (ret != sz)
{
return -1;
}
return 0;
}
int
main (int argc, char *argv[])
{
char vtname[256];
int status;
int cmd_start = 1;
char *command = NULL;
if (getuid () != geteuid () ||
getuid () != 0) {
fprintf (stderr, "mdmopen: Only root wants to run me\n");
return 66;
}
signal (SIGTERM, sighandler);
signal (SIGINT, sighandler);
signal (SIGHUP, sighandler);
if (argc <= 1) {
fprintf (stderr, "mdmopen: must supply a command!\n");
return 66;
}
command = argv[1];
if (strcmp (argv[1], "-l") == 0) {
char *p;
if (argc <= 2) {
fprintf (stderr, "mdmopen: must supply a command!\n");
return 66;
}
/* prepend '-' and start the command at
* argument 2 */
cmd_start = 2;
command = argv[2];
argv[2] = malloc (strlen (command) + 2);
if (argv[2] == NULL) {
fprintf (stderr, "mdmopen: cannot allocate memory!\n");
return 66;
}
p = strrchr (command, '/');
if (p != NULL) {
/* make it "-basename" */
strcpy (argv[2]+1, p+1);
} else {
strcpy (argv[2]+1, command);
}
*(argv[2]) = '-';
}
fd = open (MDMCONSOLEDEVICE, O_WRONLY, 0);
if (fd < 0) {
perror ("mdmopen: Failed to open " MDMCONSOLEDEVICE);
return 66;
}
errno = 0;
if ((ioctl(fd, VT_OPENQRY, &vtno) < 0) || (vtno == -1)) {
perror ("mdmopen: Cannot find a free VT");
IGNORE_EINTR (close (fd));
return 66;
}
if (ioctl(fd, VT_GETSTATE, &vt) < 0) {
perror ("mdmopen: can't get VTstate");
IGNORE_EINTR (close(fd));
return 66;
}
snprintf (vtname, sizeof (vtname), VTNAME, vtno);
chown (vtname, 0, -1);
child_pid = fork();
if (child_pid == 0) {
char VT_NUMBER[256];
if (getenv ("UNSAFE_TO_TRANSLATE") != NULL &&
strcmp (getenv ("UNSAFE_TO_TRANSLATE"), "yes") == 0) {
putenv ("LANG=C");
/* portable way to truly unset with putenv? */
putenv ("LC_ALL=");
putenv ("LC_MESSAGES=");
putenv ("LC_ALL");
putenv ("LC_MESSAGES");
}
#ifdef __linux__
putenv ("TERM=linux");
#endif
snprintf (VT_NUMBER, sizeof (VT_NUMBER), "VT_NUMBER=%d", vtno);
putenv (VT_NUMBER);
signal (SIGTERM, SIG_DFL);
signal (SIGINT, SIG_DFL);
signal (SIGHUP, SIG_DFL);
/* leave current vt */
if (
#ifdef ESIX_5_3_2_D
setpgrp() < 0
#else
setsid() < 0
#endif
) {
fprintf(stderr, "open: Unable to set new session (%s)\n",
strerror(errno));
}
IGNORE_EINTR (close (0));
IGNORE_EINTR (close (1));
IGNORE_EINTR (close (2));
IGNORE_EINTR (close (fd));
/* and grab new one */
fd = open (vtname, O_RDWR);
if (fd < 0) { /* Shouldn't happen */
_exit (66); /* silently die */
}
dup(fd);
dup(fd);
/*
* Can't tell anyone if any of these fail, so throw away
* the return values
*/
(void) ioctl(fd, VT_ACTIVATE, vtno);
/* wait to be really sure we have switched */
(void) ioctl(fd, VT_WAITACTIVE, vtno);
#ifdef __linux__
/* Turn on fonts */
IGNORE_EINTR (write (0, "\033(K", 3));
#endif /* __linux__ */
execvp (command, &argv[cmd_start]);
_exit (66); /* failed */
}
if (child_pid < 0) {
perror ("mdmopen: fork() error");
return 66;
}
do_switchback = TRUE;
IGNORE_EINTR (waitpid (child_pid, &status, 0));
child_pid = -1;
do_switchback = FALSE;
/* Switch back... */
(void) ioctl(fd, VT_ACTIVATE, vt.v_active);
/* wait to be really sure we have switched */
(void) ioctl(fd, VT_WAITACTIVE, vt.v_active);
IGNORE_EINTR (close (fd));
if (WIFEXITED (status))
return WEXITSTATUS (status);
else
return 66;
}
