719 lines
18 KiB
C
719 lines
18 KiB
C
/*
|
|
* uuidd.c --- UUID-generation daemon
|
|
*
|
|
* Copyright (C) 2007 Theodore Ts'o
|
|
*
|
|
* %Begin-Header%
|
|
* This file may be redistributed under the terms of the GNU Public
|
|
* License.
|
|
* %End-Header%
|
|
*/
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <unistd.h>
|
|
#include <inttypes.h>
|
|
#include <errno.h>
|
|
#include <err.h>
|
|
#include <sys/types.h>
|
|
#include <sys/stat.h>
|
|
#include <sys/socket.h>
|
|
#include <sys/un.h>
|
|
#include <fcntl.h>
|
|
#include <signal.h>
|
|
#include <string.h>
|
|
#include <getopt.h>
|
|
#include <sys/signalfd.h>
|
|
#include <poll.h>
|
|
|
|
#include "uuid.h"
|
|
#include "uuidd.h"
|
|
#include "all-io.h"
|
|
#include "c.h"
|
|
#include "closestream.h"
|
|
#include "strutils.h"
|
|
#include "optutils.h"
|
|
#include "monotonic.h"
|
|
#include "timer.h"
|
|
|
|
#ifdef HAVE_LIBSYSTEMD
|
|
# include <systemd/sd-daemon.h>
|
|
#endif
|
|
|
|
#include "nls.h"
|
|
|
|
#ifdef __GNUC__
|
|
#define CODE_ATTR(x) __attribute__(x)
|
|
#else
|
|
#define CODE_ATTR(x)
|
|
#endif
|
|
|
|
/* length of textual representation of UUID, including trailing \0 */
|
|
#define UUID_STR_LEN 37
|
|
|
|
/* length of binary representation of UUID */
|
|
#define UUID_LEN (sizeof(uuid_t))
|
|
|
|
/* server loop control structure */
|
|
struct uuidd_cxt_t {
|
|
const char *cleanup_pidfile;
|
|
const char *cleanup_socket;
|
|
uint32_t timeout;
|
|
unsigned int debug: 1,
|
|
quiet: 1,
|
|
no_fork: 1,
|
|
no_sock: 1;
|
|
};
|
|
|
|
static void __attribute__ ((__noreturn__)) usage(FILE * out)
|
|
{
|
|
fputs(USAGE_HEADER, out);
|
|
fprintf(out, _(" %s [options]\n"), program_invocation_short_name);
|
|
fputs(USAGE_SEPARATOR, out);
|
|
fputs(_("A daemon for generating UUIDs.\n"), out);
|
|
fputs(USAGE_OPTIONS, out);
|
|
fputs(_(" -p, --pid <path> path to pid file\n"), out);
|
|
fputs(_(" -s, --socket <path> path to socket\n"), out);
|
|
fputs(_(" -T, --timeout <sec> specify inactivity timeout\n"), out);
|
|
fputs(_(" -k, --kill kill running daemon\n"), out);
|
|
fputs(_(" -r, --random test random-based generation\n"), out);
|
|
fputs(_(" -t, --time test time-based generation\n"), out);
|
|
fputs(_(" -n, --uuids <num> request number of uuids\n"), out);
|
|
fputs(_(" -P, --no-pid do not create pid file\n"), out);
|
|
fputs(_(" -F, --no-fork do not daemonize using double-fork\n"), out);
|
|
fputs(_(" -S, --socket-activation do not create listening socket\n"), out);
|
|
fputs(_(" -d, --debug run in debugging mode\n"), out);
|
|
fputs(_(" -q, --quiet turn on quiet mode\n"), out);
|
|
fputs(USAGE_SEPARATOR, out);
|
|
fputs(USAGE_HELP, out);
|
|
fputs(USAGE_VERSION, out);
|
|
fprintf(out, USAGE_MAN_TAIL("uuidd(8)"));
|
|
exit(out == stderr ? EXIT_FAILURE : EXIT_SUCCESS);
|
|
}
|
|
|
|
static void create_daemon(void)
|
|
{
|
|
uid_t euid;
|
|
|
|
if (daemon(0, 0))
|
|
err(EXIT_FAILURE, "daemon");
|
|
|
|
euid = geteuid();
|
|
if (setreuid(euid, euid) < 0)
|
|
err(EXIT_FAILURE, "setreuid");
|
|
}
|
|
|
|
static int call_daemon(const char *socket_path, int op, char *buf,
|
|
size_t buflen, int *num, const char **err_context)
|
|
{
|
|
char op_buf[8];
|
|
int op_len;
|
|
int s;
|
|
ssize_t ret;
|
|
int32_t reply_len = 0;
|
|
struct sockaddr_un srv_addr;
|
|
|
|
if (((op == UUIDD_OP_BULK_TIME_UUID) ||
|
|
(op == UUIDD_OP_BULK_RANDOM_UUID)) && !num) {
|
|
if (err_context)
|
|
*err_context = _("bad arguments");
|
|
errno = EINVAL;
|
|
return -1;
|
|
}
|
|
|
|
if ((s = socket(AF_UNIX, SOCK_STREAM, 0)) < 0) {
|
|
if (err_context)
|
|
*err_context = _("socket");
|
|
return -1;
|
|
}
|
|
|
|
srv_addr.sun_family = AF_UNIX;
|
|
strncpy(srv_addr.sun_path, socket_path, sizeof(srv_addr.sun_path));
|
|
srv_addr.sun_path[sizeof(srv_addr.sun_path) - 1] = '\0';
|
|
|
|
if (connect(s, (const struct sockaddr *) &srv_addr,
|
|
sizeof(struct sockaddr_un)) < 0) {
|
|
if (err_context)
|
|
*err_context = _("connect");
|
|
close(s);
|
|
return -1;
|
|
}
|
|
|
|
if (op == UUIDD_OP_BULK_RANDOM_UUID) {
|
|
if ((*num) * UUID_LEN > buflen - 4)
|
|
*num = (buflen - 4) / UUID_LEN;
|
|
}
|
|
op_buf[0] = op;
|
|
op_len = 1;
|
|
if ((op == UUIDD_OP_BULK_TIME_UUID) ||
|
|
(op == UUIDD_OP_BULK_RANDOM_UUID)) {
|
|
memcpy(op_buf + 1, num, sizeof(int));
|
|
op_len += sizeof(int);
|
|
}
|
|
|
|
ret = write_all(s, op_buf, op_len);
|
|
if (ret < 0) {
|
|
if (err_context)
|
|
*err_context = _("write");
|
|
close(s);
|
|
return -1;
|
|
}
|
|
|
|
ret = read_all(s, (char *) &reply_len, sizeof(reply_len));
|
|
if (ret < 0) {
|
|
if (err_context)
|
|
*err_context = _("read count");
|
|
close(s);
|
|
return -1;
|
|
}
|
|
if (reply_len < 0 || (size_t) reply_len > buflen) {
|
|
if (err_context)
|
|
*err_context = _("bad response length");
|
|
close(s);
|
|
return -1;
|
|
}
|
|
ret = read_all(s, (char *) buf, reply_len);
|
|
|
|
if ((ret > 0) && (op == UUIDD_OP_BULK_TIME_UUID)) {
|
|
if (reply_len >= (int) (UUID_LEN + sizeof(int)))
|
|
memcpy(buf + UUID_LEN, num, sizeof(int));
|
|
else
|
|
*num = -1;
|
|
}
|
|
if ((ret > 0) && (op == UUIDD_OP_BULK_RANDOM_UUID)) {
|
|
if (reply_len >= (int) sizeof(int))
|
|
memcpy(buf, num, sizeof(int));
|
|
else
|
|
*num = -1;
|
|
}
|
|
|
|
close(s);
|
|
|
|
return ret;
|
|
}
|
|
|
|
/*
|
|
* Exclusively create and open a pid file with path @pidfile_path
|
|
*
|
|
* Return file descriptor of the created pid_file.
|
|
*/
|
|
static int create_pidfile(struct uuidd_cxt_t *cxt, const char *pidfile_path)
|
|
{
|
|
int fd_pidfile;
|
|
struct flock fl;
|
|
|
|
fd_pidfile = open(pidfile_path, O_CREAT | O_RDWR, 0664);
|
|
if (fd_pidfile < 0) {
|
|
if (!cxt->quiet)
|
|
warn(_("cannot open %s"), pidfile_path);
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
cxt->cleanup_pidfile = pidfile_path;
|
|
|
|
fl.l_type = F_WRLCK;
|
|
fl.l_whence = SEEK_SET;
|
|
fl.l_start = 0;
|
|
fl.l_len = 0;
|
|
fl.l_pid = 0;
|
|
while (fcntl(fd_pidfile, F_SETLKW, &fl) < 0) {
|
|
if ((errno == EAGAIN) || (errno == EINTR))
|
|
continue;
|
|
if (!cxt->quiet)
|
|
warn(_("cannot lock %s"), pidfile_path);
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
|
|
return fd_pidfile;
|
|
}
|
|
|
|
/*
|
|
* Create AF_UNIX, SOCK_STREAM socket and bind to @socket_path
|
|
*
|
|
* If @will_fork is true, then make sure the descriptor
|
|
* of the socket is >2, so that it won't be later closed
|
|
* during create_daemon().
|
|
*
|
|
* Return file descriptor corresponding to created socket.
|
|
*/
|
|
static int create_socket(struct uuidd_cxt_t *uuidd_cxt,
|
|
const char *socket_path, int will_fork)
|
|
{
|
|
struct sockaddr_un my_addr;
|
|
mode_t save_umask;
|
|
int s;
|
|
|
|
if ((s = socket(AF_UNIX, SOCK_STREAM, 0)) < 0) {
|
|
if (!uuidd_cxt->quiet)
|
|
warn(_("couldn't create unix stream socket"));
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
|
|
/*
|
|
* Make sure the socket isn't using fd numbers 0-2 to avoid it
|
|
* getting closed by create_daemon()
|
|
*/
|
|
while (will_fork && s <= 2) {
|
|
s = dup(s);
|
|
if (s < 0)
|
|
err(EXIT_FAILURE, "dup");
|
|
}
|
|
|
|
/*
|
|
* Create the address we will be binding to.
|
|
*/
|
|
my_addr.sun_family = AF_UNIX;
|
|
strncpy(my_addr.sun_path, socket_path, sizeof(my_addr.sun_path));
|
|
my_addr.sun_path[sizeof(my_addr.sun_path) - 1] = '\0';
|
|
unlink(socket_path);
|
|
save_umask = umask(0);
|
|
if (bind(s, (const struct sockaddr *) &my_addr,
|
|
sizeof(struct sockaddr_un)) < 0) {
|
|
if (!uuidd_cxt->quiet)
|
|
warn(_("couldn't bind unix socket %s"), socket_path);
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
umask(save_umask);
|
|
uuidd_cxt->cleanup_socket = socket_path;
|
|
|
|
return s;
|
|
}
|
|
|
|
static void __attribute__((__noreturn__)) all_done(const struct uuidd_cxt_t *uuidd_cxt, int ret)
|
|
{
|
|
if (uuidd_cxt->cleanup_pidfile)
|
|
unlink(uuidd_cxt->cleanup_pidfile);
|
|
if (uuidd_cxt->cleanup_socket)
|
|
unlink(uuidd_cxt->cleanup_socket);
|
|
exit(ret);
|
|
}
|
|
|
|
static void handle_signal(const struct uuidd_cxt_t *uuidd_cxt, int fd)
|
|
{
|
|
struct signalfd_siginfo info;
|
|
ssize_t bytes;
|
|
|
|
bytes = read(fd, &info, sizeof(info));
|
|
if (bytes != sizeof(info)) {
|
|
if (errno == EAGAIN)
|
|
return;
|
|
warn(_("receiving signal failed"));
|
|
info.ssi_signo = 0;
|
|
}
|
|
if (info.ssi_signo == SIGPIPE)
|
|
return; /* ignored */
|
|
all_done(uuidd_cxt, EXIT_SUCCESS);
|
|
}
|
|
|
|
static void timeout_handler(int sig __attribute__((__unused__)),
|
|
siginfo_t * info,
|
|
void *context __attribute__((__unused__)))
|
|
{
|
|
if (info->si_code == SI_TIMER)
|
|
errx(EXIT_FAILURE, _("timed out"));
|
|
}
|
|
|
|
static void server_loop(const char *socket_path, const char *pidfile_path,
|
|
struct uuidd_cxt_t *uuidd_cxt)
|
|
{
|
|
struct sockaddr_un from_addr;
|
|
socklen_t fromlen;
|
|
int32_t reply_len = 0;
|
|
uuid_t uu;
|
|
char reply_buf[1024], *cp;
|
|
char op, str[UUID_STR_LEN];
|
|
int i, ns, len, num;
|
|
int s = 0;
|
|
int fd_pidfile = -1;
|
|
int ret;
|
|
struct pollfd pfd[2];
|
|
sigset_t sigmask;
|
|
int sigfd;
|
|
enum {
|
|
POLLFD_SIGNAL = 0,
|
|
POLLFD_SOCKET
|
|
};
|
|
|
|
#ifdef HAVE_LIBSYSTEMD
|
|
if (!uuidd_cxt->no_sock) /* no_sock implies no_fork and no_pid */
|
|
#endif
|
|
{
|
|
static timer_t t_id;
|
|
struct itimerval timeout;
|
|
|
|
memset(&timeout, 0, sizeof timeout);
|
|
timeout.it_value.tv_sec = 30;
|
|
if (setup_timer(&t_id, &timeout, &timeout_handler))
|
|
err(EXIT_FAILURE, _("cannot set up timer"));
|
|
if (pidfile_path)
|
|
fd_pidfile = create_pidfile(uuidd_cxt, pidfile_path);
|
|
ret = call_daemon(socket_path, UUIDD_OP_GETPID, reply_buf,
|
|
sizeof(reply_buf), 0, NULL);
|
|
cancel_timer(&t_id);
|
|
if (ret > 0) {
|
|
if (!uuidd_cxt->quiet)
|
|
warnx(_("uuidd daemon is already running at pid %s"),
|
|
reply_buf);
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
|
|
s = create_socket(uuidd_cxt, socket_path,
|
|
(!uuidd_cxt->debug || !uuidd_cxt->no_fork));
|
|
if (listen(s, SOMAXCONN) < 0) {
|
|
if (!uuidd_cxt->quiet)
|
|
warn(_("couldn't listen on unix socket %s"), socket_path);
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
|
|
if (!uuidd_cxt->debug && !uuidd_cxt->no_fork)
|
|
create_daemon();
|
|
|
|
if (pidfile_path) {
|
|
sprintf(reply_buf, "%8d\n", getpid());
|
|
if (ftruncate(fd_pidfile, 0))
|
|
err(EXIT_FAILURE, _("could not truncate file: %s"), pidfile_path);
|
|
write_all(fd_pidfile, reply_buf, strlen(reply_buf));
|
|
if (fd_pidfile > 1 && close_fd(fd_pidfile) != 0)
|
|
err(EXIT_FAILURE, _("write failed: %s"), pidfile_path);
|
|
}
|
|
|
|
}
|
|
|
|
#ifdef HAVE_LIBSYSTEMD
|
|
if (uuidd_cxt->no_sock) {
|
|
const int r = sd_listen_fds(0);
|
|
|
|
if (r < 0) {
|
|
errno = r * -1;
|
|
err(EXIT_FAILURE, _("sd_listen_fds() failed"));
|
|
} else if (r == 0)
|
|
errx(EXIT_FAILURE,
|
|
_("no file descriptors received, check systemctl status uuidd.socket"));
|
|
else if (1 < r)
|
|
errx(EXIT_FAILURE,
|
|
_("too many file descriptors received, check uuidd.socket"));
|
|
s = SD_LISTEN_FDS_START + 0;
|
|
}
|
|
#endif
|
|
|
|
sigemptyset(&sigmask);
|
|
sigaddset(&sigmask, SIGHUP);
|
|
sigaddset(&sigmask, SIGINT);
|
|
sigaddset(&sigmask, SIGTERM);
|
|
sigaddset(&sigmask, SIGALRM);
|
|
sigaddset(&sigmask, SIGPIPE);
|
|
/* Block signals so that they aren't handled according to their
|
|
* default dispositions */
|
|
sigprocmask(SIG_BLOCK, &sigmask, NULL);
|
|
if ((sigfd = signalfd(-1, &sigmask, 0)) < 0)
|
|
err(EXIT_FAILURE, _("cannot set signal handler"));
|
|
|
|
pfd[POLLFD_SIGNAL].fd = sigfd;
|
|
pfd[POLLFD_SOCKET].fd = s;
|
|
pfd[POLLFD_SIGNAL].events = pfd[POLLFD_SOCKET].events = POLLIN | POLLERR | POLLHUP;
|
|
|
|
while (1) {
|
|
ret = poll(pfd, ARRAY_SIZE(pfd),
|
|
uuidd_cxt->timeout ?
|
|
(int) uuidd_cxt->timeout * 1000 : -1);
|
|
if (ret < 0) {
|
|
if (errno == EAGAIN)
|
|
continue;
|
|
warn(_("poll failed"));
|
|
all_done(uuidd_cxt, EXIT_FAILURE);
|
|
}
|
|
if (ret == 0) { /* true when poll() times out */
|
|
if (uuidd_cxt->debug)
|
|
fprintf(stderr, _("timeout [%d sec]\n"), uuidd_cxt->timeout),
|
|
all_done(uuidd_cxt, EXIT_SUCCESS);
|
|
}
|
|
if (pfd[POLLFD_SIGNAL].revents != 0)
|
|
handle_signal(uuidd_cxt, sigfd);
|
|
if (pfd[POLLFD_SOCKET].revents == 0)
|
|
continue;
|
|
fromlen = sizeof(from_addr);
|
|
ns = accept(s, (struct sockaddr *) &from_addr, &fromlen);
|
|
if (ns < 0) {
|
|
if ((errno == EAGAIN) || (errno == EINTR))
|
|
continue;
|
|
else
|
|
err(EXIT_FAILURE, "accept");
|
|
}
|
|
len = read(ns, &op, 1);
|
|
if (len != 1) {
|
|
if (len < 0)
|
|
warn(_("read failed"));
|
|
else
|
|
warnx(_("error reading from client, len = %d"),
|
|
len);
|
|
goto shutdown_socket;
|
|
}
|
|
if ((op == UUIDD_OP_BULK_TIME_UUID) ||
|
|
(op == UUIDD_OP_BULK_RANDOM_UUID)) {
|
|
if (read_all(ns, (char *) &num, sizeof(num)) != 4)
|
|
goto shutdown_socket;
|
|
if (uuidd_cxt->debug)
|
|
fprintf(stderr, _("operation %d, incoming num = %d\n"),
|
|
op, num);
|
|
} else if (uuidd_cxt->debug)
|
|
fprintf(stderr, _("operation %d\n"), op);
|
|
|
|
switch (op) {
|
|
case UUIDD_OP_GETPID:
|
|
sprintf(reply_buf, "%d", getpid());
|
|
reply_len = strlen(reply_buf) + 1;
|
|
break;
|
|
case UUIDD_OP_GET_MAXOP:
|
|
sprintf(reply_buf, "%d", UUIDD_MAX_OP);
|
|
reply_len = strlen(reply_buf) + 1;
|
|
break;
|
|
case UUIDD_OP_TIME_UUID:
|
|
num = 1;
|
|
__uuid_generate_time(uu, &num);
|
|
if (uuidd_cxt->debug) {
|
|
uuid_unparse(uu, str);
|
|
fprintf(stderr, _("Generated time UUID: %s\n"), str);
|
|
}
|
|
memcpy(reply_buf, uu, sizeof(uu));
|
|
reply_len = sizeof(uu);
|
|
break;
|
|
case UUIDD_OP_RANDOM_UUID:
|
|
num = 1;
|
|
__uuid_generate_random(uu, &num);
|
|
if (uuidd_cxt->debug) {
|
|
uuid_unparse(uu, str);
|
|
fprintf(stderr, _("Generated random UUID: %s\n"), str);
|
|
}
|
|
memcpy(reply_buf, uu, sizeof(uu));
|
|
reply_len = sizeof(uu);
|
|
break;
|
|
case UUIDD_OP_BULK_TIME_UUID:
|
|
__uuid_generate_time(uu, &num);
|
|
if (uuidd_cxt->debug) {
|
|
uuid_unparse(uu, str);
|
|
fprintf(stderr, P_("Generated time UUID %s "
|
|
"and %d following\n",
|
|
"Generated time UUID %s "
|
|
"and %d following\n", num - 1),
|
|
str, num - 1);
|
|
}
|
|
memcpy(reply_buf, uu, sizeof(uu));
|
|
reply_len = sizeof(uu);
|
|
memcpy(reply_buf + reply_len, &num, sizeof(num));
|
|
reply_len += sizeof(num);
|
|
break;
|
|
case UUIDD_OP_BULK_RANDOM_UUID:
|
|
if (num < 0)
|
|
num = 1;
|
|
if (num > 1000)
|
|
num = 1000;
|
|
if (num * UUID_LEN > (int) (sizeof(reply_buf) - sizeof(num)))
|
|
num = (sizeof(reply_buf) - sizeof(num)) / UUID_LEN;
|
|
__uuid_generate_random((unsigned char *) reply_buf +
|
|
sizeof(num), &num);
|
|
if (uuidd_cxt->debug) {
|
|
fprintf(stderr, P_("Generated %d UUID:\n",
|
|
"Generated %d UUIDs:\n", num), num);
|
|
for (i = 0, cp = reply_buf + sizeof(num);
|
|
i < num;
|
|
i++, cp += UUID_LEN) {
|
|
uuid_unparse((unsigned char *)cp, str);
|
|
fprintf(stderr, "\t%s\n", str);
|
|
}
|
|
}
|
|
reply_len = (num * UUID_LEN) + sizeof(num);
|
|
memcpy(reply_buf, &num, sizeof(num));
|
|
break;
|
|
default:
|
|
if (uuidd_cxt->debug)
|
|
fprintf(stderr, _("Invalid operation %d\n"), op);
|
|
goto shutdown_socket;
|
|
}
|
|
write_all(ns, (char *) &reply_len, sizeof(reply_len));
|
|
write_all(ns, reply_buf, reply_len);
|
|
shutdown_socket:
|
|
close(ns);
|
|
}
|
|
}
|
|
|
|
static void __attribute__ ((__noreturn__)) unexpected_size(int size)
|
|
{
|
|
errx(EXIT_FAILURE, _("Unexpected reply length from server %d"), size);
|
|
}
|
|
|
|
int main(int argc, char **argv)
|
|
{
|
|
const char *socket_path = UUIDD_SOCKET_PATH;
|
|
const char *pidfile_path = NULL;
|
|
const char *err_context = NULL;
|
|
char buf[1024], *cp;
|
|
char str[UUID_STR_LEN];
|
|
uuid_t uu;
|
|
int i, c, ret;
|
|
int do_type = 0, do_kill = 0, num = 0;
|
|
int no_pid = 0;
|
|
int s_flag = 0;
|
|
|
|
struct uuidd_cxt_t uuidd_cxt = { .timeout = 0 };
|
|
|
|
static const struct option longopts[] = {
|
|
{"pid", required_argument, NULL, 'p'},
|
|
{"socket", required_argument, NULL, 's'},
|
|
{"timeout", required_argument, NULL, 'T'},
|
|
{"kill", no_argument, NULL, 'k'},
|
|
{"random", no_argument, NULL, 'r'},
|
|
{"time", no_argument, NULL, 't'},
|
|
{"uuids", required_argument, NULL, 'n'},
|
|
{"no-pid", no_argument, NULL, 'P'},
|
|
{"no-fork", no_argument, NULL, 'F'},
|
|
{"socket-activation", no_argument, NULL, 'S'},
|
|
{"debug", no_argument, NULL, 'd'},
|
|
{"quiet", no_argument, NULL, 'q'},
|
|
{"version", no_argument, NULL, 'V'},
|
|
{"help", no_argument, NULL, 'h'},
|
|
{NULL, 0, NULL, 0}
|
|
};
|
|
static const ul_excl_t excl[] = {
|
|
{ 'P', 'p' },
|
|
{ 'd', 'q' },
|
|
{ 'r', 't' },
|
|
{ 0 }
|
|
};
|
|
int excl_st[ARRAY_SIZE(excl)] = UL_EXCL_STATUS_INIT;
|
|
|
|
setlocale(LC_ALL, "");
|
|
bindtextdomain(PACKAGE, LOCALEDIR);
|
|
textdomain(PACKAGE);
|
|
atexit(close_stdout);
|
|
|
|
while ((c =
|
|
getopt_long(argc, argv, "p:s:T:krtn:PFSdqVh", longopts,
|
|
NULL)) != -1) {
|
|
err_exclusive_options(c, longopts, excl, excl_st);
|
|
switch (c) {
|
|
case 'd':
|
|
uuidd_cxt.debug = 1;
|
|
break;
|
|
case 'k':
|
|
do_kill++;
|
|
break;
|
|
case 'n':
|
|
num = strtou32_or_err(optarg,
|
|
_("failed to parse --uuids"));
|
|
break;
|
|
case 'p':
|
|
pidfile_path = optarg;
|
|
break;
|
|
case 'P':
|
|
no_pid = 1;
|
|
break;
|
|
case 'F':
|
|
uuidd_cxt.no_fork = 1;
|
|
break;
|
|
case 'S':
|
|
#ifdef HAVE_LIBSYSTEMD
|
|
uuidd_cxt.no_sock = 1;
|
|
uuidd_cxt.no_fork = 1;
|
|
no_pid = 1;
|
|
#else
|
|
errx(EXIT_FAILURE, _("uuidd has been built without "
|
|
"support for socket activation"));
|
|
#endif
|
|
break;
|
|
case 'q':
|
|
uuidd_cxt.quiet = 1;
|
|
break;
|
|
case 'r':
|
|
do_type = UUIDD_OP_RANDOM_UUID;
|
|
break;
|
|
case 's':
|
|
socket_path = optarg;
|
|
s_flag = 1;
|
|
break;
|
|
case 't':
|
|
do_type = UUIDD_OP_TIME_UUID;
|
|
break;
|
|
case 'T':
|
|
uuidd_cxt.timeout = strtou32_or_err(optarg,
|
|
_("failed to parse --timeout"));
|
|
break;
|
|
case 'V':
|
|
printf(UTIL_LINUX_VERSION);
|
|
return EXIT_SUCCESS;
|
|
case 'h':
|
|
usage(stdout);
|
|
default:
|
|
errtryhelp(EXIT_FAILURE);
|
|
}
|
|
}
|
|
|
|
if (!no_pid && !pidfile_path)
|
|
pidfile_path = UUIDD_PIDFILE_PATH;
|
|
|
|
/* custom socket path and socket-activation make no sense */
|
|
if (s_flag && uuidd_cxt.no_sock && !uuidd_cxt.quiet)
|
|
warnx(_("Both --socket-activation and --socket specified. "
|
|
"Ignoring --socket."));
|
|
|
|
if (num && do_type) {
|
|
ret = call_daemon(socket_path, do_type + 2, buf,
|
|
sizeof(buf), &num, &err_context);
|
|
if (ret < 0)
|
|
err(EXIT_FAILURE, _("error calling uuidd daemon (%s)"),
|
|
err_context ? : _("unexpected error"));
|
|
|
|
if (do_type == UUIDD_OP_TIME_UUID) {
|
|
if (ret != sizeof(uu) + sizeof(num))
|
|
unexpected_size(ret);
|
|
|
|
uuid_unparse((unsigned char *) buf, str);
|
|
|
|
printf(P_("%s and %d subsequent UUID\n",
|
|
"%s and %d subsequent UUIDs\n", num - 1),
|
|
str, num - 1);
|
|
} else {
|
|
printf(_("List of UUIDs:\n"));
|
|
cp = buf + 4;
|
|
if (ret != (int) (sizeof(num) + num * sizeof(uu)))
|
|
unexpected_size(ret);
|
|
for (i = 0; i < num; i++, cp += UUID_LEN) {
|
|
uuid_unparse((unsigned char *) cp, str);
|
|
printf("\t%s\n", str);
|
|
}
|
|
}
|
|
return EXIT_SUCCESS;
|
|
}
|
|
if (do_type) {
|
|
ret = call_daemon(socket_path, do_type, (char *) &uu,
|
|
sizeof(uu), 0, &err_context);
|
|
if (ret < 0)
|
|
err(EXIT_FAILURE, _("error calling uuidd daemon (%s)"),
|
|
err_context ? : _("unexpected error"));
|
|
if (ret != sizeof(uu))
|
|
unexpected_size(ret);
|
|
|
|
uuid_unparse(uu, str);
|
|
|
|
printf("%s\n", str);
|
|
return EXIT_SUCCESS;
|
|
}
|
|
|
|
if (do_kill) {
|
|
ret = call_daemon(socket_path, UUIDD_OP_GETPID, buf, sizeof(buf), 0, NULL);
|
|
if ((ret > 0) && ((do_kill = atoi((char *) buf)) > 0)) {
|
|
ret = kill(do_kill, SIGTERM);
|
|
if (ret < 0) {
|
|
if (!uuidd_cxt.quiet)
|
|
warn(_("couldn't kill uuidd running "
|
|
"at pid %d"), do_kill);
|
|
return EXIT_FAILURE;
|
|
}
|
|
if (!uuidd_cxt.quiet)
|
|
printf(_("Killed uuidd running at pid %d.\n"),
|
|
do_kill);
|
|
}
|
|
return EXIT_SUCCESS;
|
|
}
|
|
|
|
server_loop(socket_path, pidfile_path, &uuidd_cxt);
|
|
return EXIT_SUCCESS;
|
|
}
|