int
main(const int argc, char *argv[])
{
register const char * format;
register const char * cp;
register int ch;
register bool rflag = false;
time_t t;
intmax_t secs;
char * endarg;
#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 = time(NULL);
format = NULL;
while ((ch = getopt(argc, argv, "ucr:")) != 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;
}
}
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 {
fprintf(stderr, _("date: unknown operand: %s\n"), cp);
usage();
}
}
display(format, t);
return retval;
}
int
main(const int argc, char *argv[])
{
register const char * format;
register const char * value;
register const char * cp;
register int ch;
register int dousg;
register int aflag = 0;
register int dflag = 0;
register int nflag = 0;
register int tflag = 0;
register int minuteswest;
register int dsttime;
register double adjust;
time_t now;
time_t t;
INITIALIZE(dousg);
INITIALIZE(minuteswest);
INITIALIZE(dsttime);
INITIALIZE(adjust);
INITIALIZE(t);
#ifdef LC_ALL
(void) setlocale(LC_ALL, "");
#endif /* defined(LC_ALL) */
#if HAVE_GETTEXT
#ifdef TZ_DOMAINDIR
(void) bindtextdomain(TZ_DOMAIN, TZ_DOMAINDIR);
#endif /* defined(TEXTDOMAINDIR) */
(void) textdomain(TZ_DOMAIN);
#endif /* HAVE_GETTEXT */
(void) time(&now);
format = value = NULL;
while ((ch = getopt(argc, argv, "ucnd:t:a:")) != EOF && ch != -1) {
switch (ch) {
default:
usage();
case 'u': /* do it in UTC */
case 'c':
dogmt();
break;
case 'n': /* don't set network */
nflag = 1;
break;
case 'd': /* daylight saving time */
if (dflag) {
(void) fprintf(stderr,
_("date: error: multiple -d's used"));
usage();
}
dflag = 1;
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) {
(void) fprintf(stderr,
_("date: error: multiple -t's used"));
usage();
}
tflag = 1;
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) {
(void) fprintf(stderr,
_("date: error: multiple -a's used"));
usage();
}
aflag = 1;
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 {
(void) fprintf(stderr,
_("date: error: multiple formats in command line\n"));
usage();
}
else if (value == NULL)
value = cp;
else {
(void) 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) fprintf(stderr,
_("date: warning: kernel doesn't keep -d/-t information, option ignored\n"));
#endif /* HAVE_SETTIMEOFDAY != 2 */
}
if (value == NULL)
display(format);
reset(t, nflag);
checkfinal(value, dousg, t, now);
#ifdef EBUG
{
struct tm tm;
tm = *localtime(&t);
timeout(stdout, "%c\n", &tm);
exit(retval);
}
#endif /* defined EBUG */
display(format);
/* gcc -Wall pacifier */
for ( ; ; )
continue;
}
