1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712
|
/*
* 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"
/* 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(void)
{
FILE *out = stdout;
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);
printf(USAGE_HELP_OPTIONS(25));
printf(USAGE_MAN_TAIL("uuidd(8)"));
exit(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;
assert(strlen(socket_path) < sizeof(srv_addr.sun_path));
xstrncpy(srv_addr.sun_path, socket_path, sizeof(srv_addr.sun_path));
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;
assert(strlen(socket_path) < sizeof(my_addr.sun_path));
xstrncpy(my_addr.sun_path, socket_path, sizeof(my_addr.sun_path));
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();
default:
errtryhelp(EXIT_FAILURE);
}
}
if (strlen(socket_path) >= sizeof(((struct sockaddr_un *)0)->sun_path))
errx(EXIT_FAILURE, _("socket name too long: %s"), socket_path);
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;
}
|