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/*
* Copyright (c) 1985, 1987, 1988 The Regents of the University of California.
* All rights reserved.
*
* Redistribution and use in source and binary forms are permitted
* provided that the above copyright notice and this paragraph are
* duplicated in all such forms and that any documentation,
* advertising materials, and other materials related to such
* distribution and use acknowledge that the software was developed
* by the University of California, Berkeley. The name of the
* University may not be used to endorse or promote products derived
* from this software without specific prior written permission.
* THIS SOFTWARE IS PROVIDED "AS IS" AND WITHOUT ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*/
#include "private.h"
#if HAVE_ADJTIME || HAVE_SETTIMEOFDAY
#include "sys/time.h" /* for struct timeval, struct timezone */
#endif /* HAVE_ADJTIME || HAVE_SETTIMEOFDAY */
#include "locale.h"
#include "utmp.h" /* for OLD_TIME (or its absence) */
#if HAVE_UTMPX_H
#include "utmpx.h"
#endif
#ifndef OTIME_MSG
#define OTIME_MSG "old time"
#endif
#ifndef NTIME_MSG
#define NTIME_MSG "new time"
#endif
#if !defined WTMPX_FILE && defined _PATH_WTMPX
# define WTMPX_FILE _PATH_WTMPX
#endif
/*
** The two things date knows about time are. . .
*/
#ifndef TM_YEAR_BASE
#define TM_YEAR_BASE 1900
#endif /* !defined TM_YEAR_BASE */
#ifndef SECSPERMIN
#define SECSPERMIN 60
#endif /* !defined SECSPERMIN */
extern char ** environ;
extern char * optarg;
extern int optind;
extern char * tzname[2];
static int retval = EXIT_SUCCESS;
static void checkfinal(char const *, bool, time_t, time_t);
static time_t convert(const char *, bool, time_t);
static void display(const char *, time_t);
static void dogmt(void);
static void errensure(void);
static void iffy(time_t, time_t, const char *, const char *);
static const char * nondigit(const char *);
static void oops(const char *);
static void reset(time_t, bool);
static void timeout(FILE *, const char *, const struct tm *);
static void usage(void);
static void wildinput(const char *, const char *,
const char *);
int
main(const int argc, char *argv[])
{
register const char * format;
register const char * value;
register const char * cp;
register int ch;
register bool dousg;
register bool aflag = false;
register bool dflag = false;
register bool nflag = false;
register bool tflag = false;
register bool rflag = false;
register int minuteswest;
register int dsttime;
register double adjust;
time_t now;
time_t t;
intmax_t secs;
char * endarg;
INITIALIZE(dousg);
#ifdef LC_ALL
setlocale(LC_ALL, "");
#endif /* defined(LC_ALL) */
#if HAVE_GETTEXT
#ifdef TZ_DOMAINDIR
bindtextdomain(TZ_DOMAIN, TZ_DOMAINDIR);
#endif /* defined(TEXTDOMAINDIR) */
textdomain(TZ_DOMAIN);
#endif /* HAVE_GETTEXT */
t = now = time(NULL);
format = value = NULL;
while ((ch = getopt(argc, argv, "ucr:nd:t:a:")) != EOF && ch != -1) {
switch (ch) {
default:
usage();
case 'u': /* do it in UT */
case 'c':
dogmt();
break;
case 'r': /* seconds since 1970 */
if (rflag) {
fprintf(stderr,
_("date: error: multiple -r's used"));
usage();
}
rflag = true;
errno = 0;
secs = strtoimax (optarg, &endarg, 0);
if (*endarg || optarg == endarg)
errno = EINVAL;
else if (! (time_t_min <= secs && secs <= time_t_max))
errno = ERANGE;
if (errno) {
perror(optarg);
errensure();
exit(retval);
}
t = secs;
break;
case 'n': /* don't set network */
nflag = true;
break;
case 'd': /* daylight saving time */
if (dflag) {
fprintf(stderr,
_("date: error: multiple -d's used"));
usage();
}
dflag = true;
cp = optarg;
dsttime = atoi(cp);
if (*cp == '\0' || *nondigit(cp) != '\0')
wildinput(_("-t value"), optarg,
_("must be a non-negative number"));
break;
case 't': /* minutes west of UTC */
if (tflag) {
fprintf(stderr,
_("date: error: multiple -t's used"));
usage();
}
tflag = true;
cp = optarg;
minuteswest = atoi(cp);
if (*cp == '+' || *cp == '-')
++cp;
if (*cp == '\0' || *nondigit(cp) != '\0')
wildinput(_("-d value"), optarg,
_("must be a number"));
break;
case 'a': /* adjustment */
if (aflag) {
fprintf(stderr,
_("date: error: multiple -a's used"));
usage();
}
aflag = true;
cp = optarg;
adjust = atof(cp);
if (*cp == '+' || *cp == '-')
++cp;
if (*cp == '\0' || strcmp(cp, ".") == 0)
wildinput(_("-a value"), optarg,
_("must be a number"));
cp = nondigit(cp);
if (*cp == '.')
++cp;
if (*nondigit(cp) != '\0')
wildinput(_("-a value"), optarg,
_("must be a number"));
break;
}
}
while (optind < argc) {
cp = argv[optind++];
if (*cp == '+')
if (format == NULL)
format = cp + 1;
else {
fprintf(stderr,
_("date: error: multiple formats in command line\n"));
usage();
}
else if (value == NULL && !rflag)
value = cp;
else {
fprintf(stderr,
_("date: error: multiple values in command line\n"));
usage();
}
}
if (value != NULL) {
/*
** This order ensures that "reasonable" twelve-digit inputs
** (such as 120203042006) won't be misinterpreted
** even if time_t's range all the way back to the thirteenth
** century. Do not change the order.
*/
t = convert(value, (dousg = true), now);
if (t == -1)
t = convert(value, (dousg = false), now);
if (t == -1) {
/*
** Out of range values,
** or time that falls in a DST transition hole?
*/
if ((cp = strchr(value, '.')) != NULL) {
/*
** Ensure that the failure of
** TZ=America/New_York date 8712312359.60
** doesn't get misdiagnosed. (It was
** TZ=America/New_York date 8712311859.60
** when the leap second was inserted.)
** The normal check won't work since
** the given time is valid in UTC.
*/
if (atoi(cp + 1) >= SECSPERMIN)
wildinput(_("time"), value,
_("out of range seconds given"));
}
dogmt();
t = convert(value, false, now);
if (t == -1)
t = convert(value, true, now);
wildinput(_("time"), value,
(t == -1) ?
_("out of range value given") :
_("time skipped when clock springs forward"));
}
}
/*
** Entire command line has now been checked.
*/
if (aflag) {
#if HAVE_ADJTIME
struct timeval tv;
tv.tv_sec = (int) adjust;
tv.tv_usec = (int) ((adjust - tv.tv_sec) * 1000000L);
if (adjtime(&tv, NULL) != 0)
oops("adjtime");
#endif /* HAVE_ADJTIME */
#if !HAVE_ADJTIME
reset(now + adjust, nflag);
#endif /* !HAVE_ADJTIME */
/*
** Sun silently ignores everything else; we follow suit.
*/
exit(retval);
}
if (dflag || tflag) {
#if HAVE_SETTIMEOFDAY == 2
struct timezone tz;
if (!dflag || !tflag)
if (gettimeofday(NULL, &tz) != 0)
oops("gettimeofday");
if (dflag)
tz.tz_dsttime = dsttime;
if (tflag)
tz.tz_minuteswest = minuteswest;
if (settimeofday(NULL, &tz) != 0)
oops("settimeofday");
#endif /* HAVE_SETTIMEOFDAY == 2 */
#if HAVE_SETTIMEOFDAY != 2
(void) dsttime;
(void) minuteswest;
fprintf(stderr,
_("date: warning: kernel doesn't keep -d/-t information, option ignored\n"));
#endif /* HAVE_SETTIMEOFDAY != 2 */
}
if (value) {
reset(t, nflag);
checkfinal(value, dousg, t, now);
t = time(NULL);
}
display(format, t);
return retval;
}
static void
dogmt(void)
{
static char ** fakeenv;
if (fakeenv == NULL) {
register int from;
register int to;
register int n;
static char tzegmt0[] = "TZ=GMT0";
for (n = 0; environ[n] != NULL; ++n)
continue;
fakeenv = malloc((n + 2) * sizeof *fakeenv);
if (fakeenv == NULL) {
perror(_("Memory exhausted"));
errensure();
exit(retval);
}
to = 0;
fakeenv[to++] = tzegmt0;
for (from = 1; environ[from] != NULL; ++from)
if (strncmp(environ[from], "TZ=", 3) != 0)
fakeenv[to++] = environ[from];
fakeenv[to] = NULL;
environ = fakeenv;
}
}
#ifdef OLD_TIME
/*
** We assume we're on a System-V-based system,
** should use stime,
** should write System-V-format utmp entries,
** and don't have network notification to worry about.
*/
#include "fcntl.h" /* for O_WRONLY, O_APPEND */
/*ARGSUSED*/
static void
reset(time_t newt, bool nflag)
{
register int fid;
time_t oldt;
static struct {
struct utmp before;
struct utmp after;
} s;
#if HAVE_UTMPX_H
static struct {
struct utmpx before;
struct utmpx after;
} sx;
#endif
/*
** Wouldn't it be great if stime returned the old time?
*/
oldt = time(NULL);
if (stime(&newt) != 0)
oops("stime");
s.before.ut_type = OLD_TIME;
s.before.ut_time = oldt;
strcpy(s.before.ut_line, OTIME_MSG);
s.after.ut_type = NEW_TIME;
s.after.ut_time = newt;
strcpy(s.after.ut_line, NTIME_MSG);
fid = open(WTMP_FILE, O_WRONLY | O_APPEND);
if (fid < 0)
oops(_("log file open"));
if (write(fid, (char *) &s, sizeof s) != sizeof s)
oops(_("log file write"));
if (close(fid) != 0)
oops(_("log file close"));
#if !HAVE_UTMPX_H
pututline(&s.before);
pututline(&s.after);
#endif /* !HAVE_UTMPX_H */
#if HAVE_UTMPX_H
sx.before.ut_type = OLD_TIME;
sx.before.ut_tv.tv_sec = oldt;
strcpy(sx.before.ut_line, OTIME_MSG);
sx.after.ut_type = NEW_TIME;
sx.after.ut_tv.tv_sec = newt;
strcpy(sx.after.ut_line, NTIME_MSG);
#if defined WTMPX_FILE && !SUPPRESS_WTMPX_FILE_UPDATE
/* In Solaris 2.5 (and presumably other systems),
'date' does not update /var/adm/wtmpx.
This must be a bug. If you'd like to reproduce the bug,
define SUPPRESS_WTMPX_FILE_UPDATE to be nonzero. */
fid = open(WTMPX_FILE, O_WRONLY | O_APPEND);
if (fid < 0)
oops(_("log file open"));
if (write(fid, (char *) &sx, sizeof sx) != sizeof sx)
oops(_("log file write"));
if (close(fid) != 0)
oops(_("log file close"));
# endif
pututxline(&sx.before);
pututxline(&sx.after);
#endif /* HAVE_UTMPX_H */
}
#endif /* defined OLD_TIME */
#ifndef OLD_TIME
/*
** We assume we're on a BSD-based system,
** should use settimeofday,
** should write BSD-format utmp entries (using logwtmp),
** and may get to worry about network notification.
** The "time name" changes between 4.3-tahoe and 4.4;
** we include sys/param.h to determine which we should use.
*/
#ifndef TIME_NAME
#include "sys/param.h"
#ifdef BSD4_4
#define TIME_NAME "date"
#endif /* defined BSD4_4 */
#ifndef BSD4_4
#define TIME_NAME ""
#endif /* !defined BSD4_4 */
#endif /* !defined TIME_NAME */
#include "syslog.h"
#include "sys/socket.h"
#include "netinet/in.h"
#include "netdb.h"
#define TSPTYPES
#include "protocols/timed.h"
extern int logwtmp();
#if HAVE_SETTIMEOFDAY == 1
#define settimeofday(t, tz) (settimeofday)(t)
#endif /* HAVE_SETTIMEOFDAY == 1 */
#ifdef TSP_SETDATE
static bool netsettime(struct timeval);
#endif
#ifndef TSP_SETDATE
/*ARGSUSED*/
#endif /* !defined TSP_SETDATE */
static void
reset(time_t newt, bool nflag)
{
register const char * username;
static struct timeval tv; /* static so tv_usec is 0 */
username = getlogin();
if (username == NULL || *username == '\0') /* single-user or no tty */
username = "root";
tv.tv_sec = newt;
#ifdef TSP_SETDATE
if (nflag || !netsettime(tv))
#endif /* defined TSP_SETDATE */
{
/*
** "old" entry is always written, for compatibility.
*/
logwtmp("|", TIME_NAME, "");
if (settimeofday(&tv, NULL) == 0) {
logwtmp("{", TIME_NAME, ""); /* } */
syslog(LOG_AUTH | LOG_NOTICE, _("date set by %s"),
username);
} else oops("settimeofday");
}
}
#endif /* !defined OLD_TIME */
static void
wildinput(const char *const item, const char *const value,
const char *const reason)
{
fprintf(stderr,
_("date: error: bad command line %s \"%s\", %s\n"),
item, value, reason);
usage();
}
static void
errensure(void)
{
if (retval == EXIT_SUCCESS)
retval = EXIT_FAILURE;
}
static const char * ATTRIBUTE_PURE
nondigit(register const char *cp)
{
while (is_digit(*cp))
++cp;
return cp;
}
static void
usage(void)
{
fprintf(stderr,
_("date: usage: date [-u] [-c] [-r seconds] [-n]"
" [-d dst] [-t min-west] [-a sss.fff]"
" [[yyyy]mmddhhmm[yyyy][.ss]] [+format]\n"));
errensure();
exit(retval);
}
static void
oops(const char *const string)
{
int e = errno;
fprintf(stderr, _("date: error: "));
errno = e;
perror(string);
errensure();
display(NULL, time(NULL));
exit(retval);
}
static void
display(const char *const format, time_t const now)
{
struct tm *tmp;
tmp = localtime(&now);
if (!tmp) {
fprintf(stderr,
_("date: error: time out of range\n"));
errensure();
return;
}
timeout(stdout, format ? format : "%+", tmp);
putchar('\n');
fflush(stdout);
fflush(stderr);
if (ferror(stdout) || ferror(stderr)) {
fprintf(stderr,
_("date: error: couldn't write results\n"));
errensure();
}
}
#define INCR 1024
static void
timeout(FILE *const fp, const char *const format, const struct tm *tmp)
{
char * cp;
size_t result;
size_t size;
struct tm tm;
if (*format == '\0')
return;
if (!tmp) {
fprintf(stderr, _("date: error: time out of range\n"));
errensure();
return;
}
tm = *tmp;
tmp = &tm;
size = INCR;
cp = malloc(size);
for ( ; ; ) {
if (cp == NULL) {
fprintf(stderr,
_("date: error: can't get memory\n"));
errensure();
exit(retval);
}
cp[0] = '\1';
result = strftime(cp, size, format, tmp);
if (result != 0 || cp[0] == '\0')
break;
size += INCR;
cp = realloc(cp, size);
}
fwrite(cp, 1, result, fp);
free(cp);
}
static bool
sametm(register const struct tm *const atmp,
register const struct tm *const btmp)
{
return atmp->tm_year == btmp->tm_year &&
atmp->tm_mon == btmp->tm_mon &&
atmp->tm_mday == btmp->tm_mday &&
atmp->tm_hour == btmp->tm_hour &&
atmp->tm_min == btmp->tm_min &&
atmp->tm_sec == btmp->tm_sec;
}
/*
** convert --
** convert user's input into a time_t.
*/
#define ATOI2(ar) (ar[0] - '0') * 10 + (ar[1] - '0'); ar += 2;
static time_t
convert(char const *value, bool dousg, time_t t)
{
register const char * cp;
register const char * dotp;
register int cent, year_in_cent, month, hour, day, mins, secs;
struct tm tm, outtm, *tmp;
time_t outt;
tmp = localtime(&t);
if (!tmp)
return -1;
tm = *tmp;
#define DIVISOR 100
year_in_cent = tm.tm_year % DIVISOR + TM_YEAR_BASE % DIVISOR;
cent = tm.tm_year / DIVISOR + TM_YEAR_BASE / DIVISOR +
year_in_cent / DIVISOR;
year_in_cent %= DIVISOR;
if (year_in_cent < 0) {
year_in_cent += DIVISOR;
--cent;
}
month = tm.tm_mon + 1;
day = tm.tm_mday;
hour = tm.tm_hour;
mins = tm.tm_min;
secs = 0;
dotp = strchr(value, '.');
for (cp = value; *cp != '\0'; ++cp)
if (!is_digit(*cp) && cp != dotp)
wildinput(_("time"), value, _("contains a nondigit"));
if (dotp == NULL)
dotp = strchr(value, '\0');
else {
cp = dotp + 1;
if (strlen(cp) != 2)
wildinput(_("time"), value,
_("seconds part is not two digits"));
secs = ATOI2(cp);
}
cp = value;
switch (dotp - cp) {
default:
wildinput(_("time"), value,
_("main part is wrong length"));
case 12:
if (!dousg) {
cent = ATOI2(cp);
year_in_cent = ATOI2(cp);
}
month = ATOI2(cp);
day = ATOI2(cp);
hour = ATOI2(cp);
mins = ATOI2(cp);
if (dousg) {
cent = ATOI2(cp);
year_in_cent = ATOI2(cp);
}
break;
case 8: /* mmddhhmm */
month = ATOI2(cp);
/* fall through to. . . */
case 6: /* ddhhmm */
day = ATOI2(cp);
/* fall through to. . . */
case 4: /* hhmm */
hour = ATOI2(cp);
mins = ATOI2(cp);
break;
case 10:
if (!dousg) {
year_in_cent = ATOI2(cp);
}
month = ATOI2(cp);
day = ATOI2(cp);
hour = ATOI2(cp);
mins = ATOI2(cp);
if (dousg) {
year_in_cent = ATOI2(cp);
}
break;
}
tm.tm_year = cent * 100 + year_in_cent - TM_YEAR_BASE;
tm.tm_mon = month - 1;
tm.tm_mday = day;
tm.tm_hour = hour;
tm.tm_min = mins;
tm.tm_sec = secs;
tm.tm_isdst = -1;
outtm = tm;
outt = mktime(&outtm);
return sametm(&tm, &outtm) ? outt : -1;
}
/*
** Code from here on out is either based on code provided by UCB
** or is only called just before the program exits.
*/
/*
** Check for iffy input.
*/
static void
checkfinal(char const *value, bool didusg, time_t t, time_t oldnow)
{
time_t othert;
struct tm tm, *tmp;
struct tm othertm;
register int pass, offset;
/*
** See if there's both a USG and a BSD interpretation.
*/
othert = convert(value, !didusg, oldnow);
if (othert != -1 && othert != t)
iffy(t, othert, value, _("year could be at start or end"));
/*
** See if there's both a DST and a STD version.
*/
tmp = localtime(&t);
if (!tmp)
iffy(t, othert, value, _("time out of range"));
othertm = tm = *tmp;
othertm.tm_isdst = !tm.tm_isdst;
othert = mktime(&othertm);
if (othert != -1 && othertm.tm_isdst != tm.tm_isdst &&
sametm(&tm, &othertm))
iffy(t, othert, value,
_("both standard and summer time versions exist"));
/*
** Final check.
**
** If a jurisdiction shifts time *without* shifting whether time is
** summer or standard (as Hawaii, the United Kingdom, and Saudi Arabia
** have done), routine checks for iffy times may not work.
** So we perform this final check, deferring it until after the time has
** been set; it may take a while, and we don't want to introduce an unnecessary
** lag between the time the user enters their command and the time that
** stime/settimeofday is called.
**
** We just check nearby times to see if any have the same representation
** as the time that convert returned. We work our way out from the center
** for quick response in solar time situations. We only handle common cases:
** offsets of at most a minute, and offsets of exact numbers of minutes
** and at most an hour.
*/
for (offset = 1; offset <= 60; ++offset)
for (pass = 1; pass <= 4; ++pass) {
if (pass == 1)
othert = t + offset;
else if (pass == 2)
othert = t - offset;
else if (pass == 3)
othert = t + 60 * offset;
else othert = t - 60 * offset;
tmp = localtime(&othert);
if (!tmp)
iffy(t, othert, value,
_("time out of range"));
othertm = *tmp;
if (sametm(&tm, &othertm))
iffy(t, othert, value,
_("multiple matching times exist"));
}
}
static void
iffy(const time_t thist, const time_t thatt,
const char * const value, const char * const reason)
{
struct tm *tmp;
bool dst;
fprintf(stderr, _("date: warning: ambiguous time \"%s\", %s.\n"),
value, reason);
tmp = gmtime(&thist);
/*
** Avoid running afoul of SCCS!
*/
timeout(stderr, _("Time was set as if you used\n\tdate -u %m%d%H\
%M\
%Y.%S\n"), tmp);
tmp = localtime(&thist);
dst = tmp && tmp->tm_isdst;
timeout(stderr, _("to get %c"), tmp);
fprintf(stderr, _(" (%s). Use\n"),
dst ? _("summer time") : _("standard time"));
tmp = gmtime(&thatt);
timeout(stderr, _("\tdate -u %m%d%H\
%M\
%Y.%S\n"), tmp);
tmp = localtime(&thatt);
dst = tmp && tmp->tm_isdst;
timeout(stderr, _("to get %c"), tmp);
fprintf(stderr, _(" (%s).\n"),
dst ? _("summer time") : _("standard time"));
errensure();
exit(retval);
}
#ifdef TSP_SETDATE
#define WAITACK 2 /* seconds */
#define WAITDATEACK 5 /* seconds */
/*
* Set the date in the machines controlled by timedaemons
* by communicating the new date to the local timedaemon.
* If the timedaemon is in the master state, it performs the
* correction on all slaves. If it is in the slave state, it
* notifies the master that a correction is needed.
* Return true on success.
*/
static bool
netsettime(struct timeval ntv)
{
int s, length, port, timed_ack, found, err, waittime;
fd_set ready;
struct timeval tout;
struct servent *sp;
struct tsp msg;
struct sockaddr_in sin, dest, from;
sp = getservbyname("timed", "udp");
if (! sp) {
fputs(_("udp/timed: unknown service\n"), stderr);
retval = 2;
return false;
}
dest.sin_port = sp->s_port;
dest.sin_family = AF_INET;
dest.sin_addr.s_addr = htonl(INADDR_ANY);
s = socket(AF_INET, SOCK_DGRAM, 0);
if (s < 0) {
if (errno != EPROTONOSUPPORT)
perror("date: socket");
goto bad;
}
bzero((char *)&sin, sizeof (sin));
sin.sin_family = AF_INET;
for (port = IPPORT_RESERVED - 1; port > IPPORT_RESERVED / 2; port--) {
sin.sin_port = htons(port);
if (bind(s, (struct sockaddr *)&sin, sizeof (sin)) >= 0)
break;
if (errno != EADDRINUSE) {
if (errno != EADDRNOTAVAIL)
perror("date: bind");
goto bad;
}
}
if (port == IPPORT_RESERVED / 2) {
fputs(_("date: All ports in use\n"), stderr);
goto bad;
}
msg.tsp_type = TSP_SETDATE;
msg.tsp_vers = TSPVERSION;
msg.tsp_name[sizeof msg.tsp_name - 1] = '\0';
if (gethostname(msg.tsp_name, sizeof msg.tsp_name) != 0) {
perror("gethostname");
goto bad;
}
if (msg.tsp_name[sizeof msg.tsp_name - 1]) {
fprintf(stderr, "hostname too long\n");
goto bad;
}
msg.tsp_seq = htons(0);
msg.tsp_time.tv_sec = htonl(ntv.tv_sec);
msg.tsp_time.tv_usec = htonl(ntv.tv_usec);
length = sizeof (struct sockaddr_in);
if (connect(s, &dest, length) < 0) {
perror("date: connect");
goto bad;
}
if (send(s, (char *)&msg, sizeof (struct tsp), 0) < 0) {
if (errno != ECONNREFUSED)
perror("date: send");
goto bad;
}
timed_ack = -1;
waittime = WAITACK;
loop:
tout.tv_sec = waittime;
tout.tv_usec = 0;
FD_ZERO(&ready);
FD_SET(s, &ready);
found = select(FD_SETSIZE, &ready, NULL, NULL, &tout);
length = sizeof err;
if (getsockopt(s, SOL_SOCKET, SO_ERROR, (char *)&err, &length) == 0
&& err) {
errno = err;
if (errno != ECONNREFUSED)
perror(_("date: send (delayed error)"));
goto bad;
}
if (found > 0 && FD_ISSET(s, &ready)) {
length = sizeof (struct sockaddr_in);
if (recvfrom(s, (char *)&msg, sizeof (struct tsp), 0, &from,
&length) < 0) {
if (errno != ECONNREFUSED)
perror("date: recvfrom");
goto bad;
}
msg.tsp_seq = ntohs(msg.tsp_seq);
msg.tsp_time.tv_sec = ntohl(msg.tsp_time.tv_sec);
msg.tsp_time.tv_usec = ntohl(msg.tsp_time.tv_usec);
switch (msg.tsp_type) {
case TSP_ACK:
timed_ack = TSP_ACK;
waittime = WAITDATEACK;
goto loop;
case TSP_DATEACK:
lose(s);
return true;
default:
fprintf(stderr,
_("date: Wrong ack received from timed: %s\n"),
tsptype[msg.tsp_type]);
timed_ack = -1;
break;
}
}
if (timed_ack == -1)
fputs(_("date: Can't reach time daemon, time set locally.\n"),
stderr);
bad:
lose(s);
retval = 2;
return false;
}
#endif /* defined TSP_SETDATE */
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