Adding upstream version 2.33.1.upstream/2.33.1upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 712 insertions, 0 deletions

diff --git a/misc-utils/uuidd.c b/misc-utils/uuidd.c
new file mode 100644
index 0000000..8b83d91
--- /dev/null
+++ b/misc-utils/uuidd.c
@@ -0,0 +1,712 @@
+/*
+ * 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;
+}