static void
setupTerminal(void)
{
int _stdin, _stdout, _stderr;
boolean_t ctty = B_FALSE;
char *data;
char *log_config = "{}";
char *log_driver = "json-file";
boolean_t open_stdin = getStdinStatus();
if ((data = mdataGet("docker:tty")) != NULL) {
if (strcmp("true", data) == 0) {
ctty = B_TRUE;
}
free(data);
}
if ((data = mdataGet("docker:logdriver")) != NULL) {
if (strcmp("json-file", data) != 0) {
log_driver = strdup(data);
if (log_driver == NULL) {
fatal(ERR_STRDUP, "unable to strdup() logdriver: %s\n",
strerror(errno));
}
}
free(data);
}
if ((data = mdataGet("docker:logconfig")) != NULL) {
log_config = strdup(data);
if (log_config == NULL) {
fatal(ERR_STRDUP, "unable to strdup() logconfig: %s\n",
strerror(errno));
}
free(data);
}
dlog("INFO logdriver %s\n", log_driver);
dlog("INFO logconfig %s\n", log_config);
dlog("SWITCHING TO /dev/zfd/*\n");
/*
* If 'OpenStdin' is set on the container we reopen stdin as connected to
* the zfd. Otherwise we leave it opened as /dev/null.
*/
if (open_stdin) {
if (close(0) == -1) {
fatal(ERR_CLOSE, "failed to close(0): %s\n", strerror(errno));
}
_stdin = open("/dev/zfd/0", O_RDWR);
if (_stdin == -1) {
if (errno == ENOENT) {
_stdin = open("/dev/null", O_RDONLY);
if (_stdin == -1) {
fatal(ERR_OPEN_CONSOLE, "failed to open /dev/null: %s\n",
strerror(errno));
}
} else {
fatal(ERR_OPEN_CONSOLE, "failed to open /dev/zfd/0: %s\n",
strerror(errno));
}
}
}
/*
* When we're not using json-file, we want to fork a logger child to handle
* the logging driver.
*/
if (strcmp("json-file", log_driver) != 0
&& strcmp("none", log_driver) != 0) {
fatal(ERR_UNKNOWN_LOG_DRIVER, "unsupported log driver: '%s'\n",
log_driver);
}
if (close(1) == -1) {
fatal(ERR_CLOSE, "failed to close(1): %s\n", strerror(errno));
}
if (close(2) == -1) {
fatal(ERR_CLOSE, "failed to close(2): %s\n", strerror(errno));
}
if (ctty) {
/* Configure output as a controlling terminal */
_stdout = open("/dev/zfd/0", O_WRONLY);
if (_stdout == -1) {
fatal(ERR_OPEN_CONSOLE, "failed to open /dev/zfd/0: %s\n",
strerror(errno));
}
_stderr = open("/dev/zfd/0", O_WRONLY);
if (_stderr == -1) {
fatal(ERR_OPEN_CONSOLE, "failed to open /dev/zfd/0: %s\n",
strerror(errno));
}
if (setsid() < 0) {
fatal(ERR_OPEN_CONSOLE, "failed to create process session: %s\n",
strerror(errno));
}
if (ioctl(_stdout, TIOCSCTTY, NULL) < 0) {
fatal(ERR_OPEN_CONSOLE, "failed set controlling tty: %s\n",
strerror(errno));
}
} else {
/* Configure individual pipe style output */
_stdout = open("/dev/zfd/1", O_WRONLY);
if (_stdout == -1) {
fatal(ERR_OPEN_CONSOLE, "failed to open /dev/zfd/1: %s\n",
strerror(errno));
}
_stderr = open("/dev/zfd/2", O_WRONLY);
if (_stderr == -1) {
fatal(ERR_OPEN_CONSOLE, "failed to open /dev/zfd/2: %s\n",
strerror(errno));
}
}
}
static void
setupTerminal(boolean_t ctty)
{
int _stdin, _stdout, _stderr;
boolean_t open_stdin = getStdinStatus();
dlog("SWITCHING TO /dev/zfd/*\n");
/*
* If 'OpenStdin' is set on the container we reopen stdin as connected to
* the zfd. Otherwise we leave it opened as /dev/null.
*/
if (open_stdin) {
if (close(0) == -1) {
fatal(ERR_CLOSE, "failed to close(0): %s\n", strerror(errno));
}
_stdin = zfd_open("/dev/zfd/0", O_RDWR);
if (_stdin == -1) {
fatal(ERR_OPEN_CONSOLE, "failed to open /dev/zfd/0: %s\n",
strerror(errno));
}
assertFd(_stdin, STDIN_FILENO);
}
if (close(1) == -1) {
fatal(ERR_CLOSE, "failed to close(1): %s\n", strerror(errno));
}
if (close(2) == -1) {
fatal(ERR_CLOSE, "failed to close(2): %s\n", strerror(errno));
}
if (ctty) {
/* Configure output as a controlling terminal */
_stdout = zfd_open("/dev/zfd/0", O_WRONLY);
if (_stdout == -1) {
fatal(ERR_OPEN_CONSOLE, "failed to open /dev/zfd/0: %s\n",
strerror(errno));
}
assertFd(_stdout, STDOUT_FILENO);
_stderr = zfd_open("/dev/zfd/0", O_WRONLY);
if (_stderr == -1) {
fatal(ERR_OPEN_CONSOLE, "failed to open /dev/zfd/0: %s\n",
strerror(errno));
}
assertFd(_stderr, STDERR_FILENO);
if (setsid() < 0) {
fatal(ERR_OPEN_CONSOLE, "failed to create process session: %s\n",
strerror(errno));
}
if (ioctl(_stdout, TIOCSCTTY, NULL) < 0) {
fatal(ERR_OPEN_CONSOLE, "failed set controlling tty: %s\n",
strerror(errno));
}
} else {
/* Configure individual pipe style output */
_stdout = zfd_open("/dev/zfd/1", O_WRONLY);
if (_stdout == -1) {
fatal(ERR_OPEN_CONSOLE, "failed to open /dev/zfd/1: %s\n",
strerror(errno));
}
assertFd(_stdout, STDOUT_FILENO);
_stderr = zfd_open("/dev/zfd/2", O_WRONLY);
if (_stderr == -1) {
fatal(ERR_OPEN_CONSOLE, "failed to open /dev/zfd/2: %s\n",
strerror(errno));
}
assertFd(_stderr, STDERR_FILENO);
}
}
static void
setupTerminal(void)
{
int _stdin, _stdout, _stderr;
boolean_t ctty = B_FALSE;
char *data;
boolean_t open_stdin = getStdinStatus();
if ((data = mdataGet("docker:tty")) != NULL) {
if (strcmp("true", data) == 0) {
ctty = B_TRUE;
}
free(data);
}
dlog("SWITCHING TO /dev/zfd/*\n");
/*
* If 'OpenStdin' is set on the container we reopen stdin as connected to
* the zfd. Otherwise we leave it opened as /dev/null.
*/
if (open_stdin) {
if (close(0) == -1) {
fatal(ERR_CLOSE, "failed to close(0): %s\n", strerror(errno));
}
_stdin = open("/dev/zfd/0", O_RDWR);
if (_stdin == -1) {
if (errno == ENOENT) {
_stdin = open("/dev/null", O_RDONLY);
if (_stdin == -1) {
fatal(ERR_OPEN_CONSOLE, "failed to open /dev/null: %s\n",
strerror(errno));
}
} else {
fatal(ERR_OPEN_CONSOLE, "failed to open /dev/zfd/0: %s\n",
strerror(errno));
}
}
}
if (close(1) == -1) {
fatal(ERR_CLOSE, "failed to close(1): %s\n", strerror(errno));
}
if (close(2) == -1) {
fatal(ERR_CLOSE, "failed to close(2): %s\n", strerror(errno));
}
if (ctty) {
/* Configure output as a controlling terminal */
_stdout = open("/dev/zfd/0", O_WRONLY);
if (_stdout == -1) {
fatal(ERR_OPEN_CONSOLE, "failed to open /dev/zfd/0: %s\n",
strerror(errno));
}
_stderr = open("/dev/zfd/0", O_WRONLY);
if (_stderr == -1) {
fatal(ERR_OPEN_CONSOLE, "failed to open /dev/zfd/0: %s\n",
strerror(errno));
}
if (setsid() < 0) {
fatal(ERR_OPEN_CONSOLE, "failed to create process session: %s\n",
strerror(errno));
}
if (ioctl(_stdout, TIOCSCTTY, NULL) < 0) {
fatal(ERR_OPEN_CONSOLE, "failed set controlling tty: %s\n",
strerror(errno));
}
} else {
/* Configure individual pipe style output */
_stdout = open("/dev/zfd/1", O_WRONLY);
if (_stdout == -1) {
fatal(ERR_OPEN_CONSOLE, "failed to open /dev/zfd/1: %s\n",
strerror(errno));
}
_stderr = open("/dev/zfd/2", O_WRONLY);
if (_stderr == -1) {
fatal(ERR_OPEN_CONSOLE, "failed to open /dev/zfd/2: %s\n",
strerror(errno));
}
}
}
