/* date - print or set the system date and time
- Copyright (C) 89, 90, 91, 92, 93, 94, 95, 96, 1997
- Free Software Foundation, Inc.
+ Copyright (C) 1989-2005 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software Foundation,
- Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
David MacKenzie <djm@gnu.ai.mit.edu> */
#include <stdio.h>
#include <getopt.h>
#include <sys/types.h>
+#if HAVE_LANGINFO_CODESET
+# include <langinfo.h>
+#endif
#include "system.h"
-#include "getline.h"
+#include "argmatch.h"
#include "error.h"
#include "getdate.h"
+#include "getline.h"
+#include "inttostr.h"
+#include "posixtm.h"
+#include "quote.h"
+#include "stat-time.h"
+#include "fprintftime.h"
-#ifndef STDC_HEADERS
-size_t strftime ();
-time_t time ();
-#endif
+/* The official name of this program (e.g., no `g' prefix). */
+#define PROGRAM_NAME "date"
+
+#define AUTHORS "David MacKenzie"
int putenv ();
-int stime ();
-char *xstrdup ();
-time_t posixtime ();
+static bool show_date (const char *format, struct timespec when);
-static void show_date PARAMS ((const char *format, time_t when));
-static void usage PARAMS ((int status));
+enum Time_spec
+{
+ /* Display only the date. */
+ TIME_SPEC_DATE,
+ /* Display date, hours, minutes, and seconds. */
+ TIME_SPEC_SECONDS,
+ /* Similar, but display nanoseconds. */
+ TIME_SPEC_NS,
+
+ /* Put these last, since they aren't valid for --rfc-3339. */
+
+ /* Display date and hour. */
+ TIME_SPEC_HOURS,
+ /* Display date, hours, and minutes. */
+ TIME_SPEC_MINUTES
+};
-/* The name this program was run with, for error messages. */
-char *program_name;
+static char const *const time_spec_string[] =
+{
+ /* Put "hours" and "minutes" first, since they aren't valid for
+ --rfc-3339. */
+ "hours", "minutes",
+ "date", "seconds", "ns", NULL
+};
+static enum Time_spec const time_spec[] =
+{
+ TIME_SPEC_HOURS, TIME_SPEC_MINUTES,
+ TIME_SPEC_DATE, TIME_SPEC_SECONDS, TIME_SPEC_NS
+};
+ARGMATCH_VERIFY (time_spec_string, time_spec);
-/* If nonzero, display usage information and exit. */
-static int show_help;
+/* A format suitable for Internet RFC 2822. */
+static char const rfc_2822_format[] = "%a, %d %b %Y %H:%M:%S %z";
-/* If nonzero, print the version on standard output and exit. */
-static int show_version;
+/* The name this program was run with, for error messages. */
+char *program_name;
-/* If non-zero, display time in RFC-822 format for mail or news. */
-static int rfc_format = 0;
+/* For long options that have no equivalent short option, use a
+ non-character as a pseudo short option, starting with CHAR_MAX + 1. */
+enum
+{
+ RFC_3339_OPTION = CHAR_MAX + 1
+};
-/* If nonzero, print or set Coordinated Universal Time. */
-static int universal_time = 0;
+static char const short_options[] = "d:f:I::r:Rs:u";
static struct option const long_options[] =
{
{"date", required_argument, NULL, 'd'},
{"file", required_argument, NULL, 'f'},
- {"help", no_argument, &show_help, 1},
+ {"iso-8601", optional_argument, NULL, 'I'}, /* Deprecated. */
{"reference", required_argument, NULL, 'r'},
{"rfc-822", no_argument, NULL, 'R'},
+ {"rfc-2822", no_argument, NULL, 'R'},
+ {"rfc-3339", required_argument, NULL, RFC_3339_OPTION},
{"set", required_argument, NULL, 's'},
{"uct", no_argument, NULL, 'u'},
{"utc", no_argument, NULL, 'u'},
{"universal", no_argument, NULL, 'u'},
- {"version", no_argument, &show_version, 1},
+ {GETOPT_HELP_OPTION_DECL},
+ {GETOPT_VERSION_OPTION_DECL},
{NULL, 0, NULL, 0}
};
-#define TZ_UTC0 "TZ=UTC0"
-
#if LOCALTIME_CACHE
# define TZSET tzset ()
#else
# define TZSET /* empty */
#endif
-#define MAYBE_SET_TZ_UTC0 \
- do { if (universal_time) set_tz (TZ_UTC0); } while (0)
-
-/* Set the TZ environment variable. */
+#ifdef _DATE_FMT
+# define DATE_FMT_LANGINFO() nl_langinfo (_DATE_FMT)
+#else
+# define DATE_FMT_LANGINFO() ""
+#endif
-static void
-set_tz (const char *tz_eq_zone)
+void
+usage (int status)
{
- if (putenv (tz_eq_zone) != 0)
- error (1, 0, "memory exhausted");
- TZSET;
+ if (status != EXIT_SUCCESS)
+ fprintf (stderr, _("Try `%s --help' for more information.\n"),
+ program_name);
+ else
+ {
+ printf (_("\
+Usage: %s [OPTION]... [+FORMAT]\n\
+ or: %s [-u|--utc|--universal] [MMDDhhmm[[CC]YY][.ss]]\n\
+"),
+ program_name, program_name);
+ fputs (_("\
+Display the current time in the given FORMAT, or set the system date.\n\
+\n\
+ -d, --date=STRING display time described by STRING, not `now'\n\
+ -f, --file=DATEFILE like --date once for each line of DATEFILE\n\
+"), stdout);
+ fputs (_("\
+ -r, --reference=FILE display the last modification time of FILE\n\
+ -R, --rfc-2822 output date and time in RFC 2822 format\n\
+ --rfc-3339=TIMESPEC output date and time in RFC 3339 format.\n\
+ TIMESPEC=`date', `seconds', or `ns' for\n\
+ date and time to the indicated precision.\n\
+ -s, --set=STRING set time described by STRING\n\
+ -u, --utc, --universal print or set Coordinated Universal Time\n\
+"), stdout);
+ fputs (HELP_OPTION_DESCRIPTION, stdout);
+ fputs (VERSION_OPTION_DESCRIPTION, stdout);
+ fputs (_("\
+\n\
+FORMAT controls the output. The only valid option for the second form\n\
+specifies Coordinated Universal Time. Interpreted sequences are:\n\
+\n\
+ %% a literal %\n\
+ %a locale's abbreviated weekday name (e.g., Sun)\n\
+"), stdout);
+ fputs (_("\
+ %A locale's full weekday name (e.g., Sunday)\n\
+ %b locale's abbreviated month name (e.g., Jan)\n\
+ %B locale's full month name (e.g., January)\n\
+ %c locale's date and time (e.g., Thu Mar 3 23:05:25 2005)\n\
+"), stdout);
+ fputs (_("\
+ %C century; like %Y, except omit last two digits (e.g., 21)\n\
+ %d day of month (e.g, 01)\n\
+ %D date; same as %m/%d/%y\n\
+ %e day of month, space padded; same as %_d\n\
+"), stdout);
+ fputs (_("\
+ %F full date; same as %Y-%m-%d\n\
+ %g the last two digits of the year corresponding to the %V week number\n\
+ %G the year corresponding to the %V week number\n\
+"), stdout);
+ fputs (_("\
+ %h same as %b\n\
+ %H hour (00..23)\n\
+ %I hour (01..12)\n\
+ %j day of year (001..366)\n\
+"), stdout);
+ fputs (_("\
+ %k hour ( 0..23)\n\
+ %l hour ( 1..12)\n\
+ %m month (01..12)\n\
+ %M minute (00..59)\n\
+"), stdout);
+ fputs (_("\
+ %n a newline\n\
+ %N nanoseconds (000000000..999999999)\n\
+ %p locale's equivalent of either AM or PM; blank if not known\n\
+ %P like %p, but lower case\n\
+ %r locale's 12-hour clock time (e.g., 11:11:04 PM)\n\
+ %R 24-hour hour and minute; same as %H:%M\n\
+ %s seconds since 1970-01-01 00:00:00 UTC\n\
+"), stdout);
+ fputs (_("\
+ %S second (00..60)\n\
+ %t a tab\n\
+ %T time; same as %H:%M:%S\n\
+ %u day of week (1..7); 1 is Monday\n\
+"), stdout);
+ fputs (_("\
+ %U week number of year with Sunday as first day of week (00..53)\n\
+ %V week number of year with Monday as first day of week (01..53)\n\
+ %w day of week (0..6); 0 is Sunday\n\
+ %W week number of year with Monday as first day of week (00..53)\n\
+"), stdout);
+ fputs (_("\
+ %x locale's date representation (e.g., 12/31/99)\n\
+ %X locale's time representation (e.g., 23:13:48)\n\
+ %y last two digits of year (00..99)\n\
+ %Y year\n\
+"), stdout);
+ fputs (_("\
+ %z +hhmm numeric timezone (e.g., -0400)\n\
+ %:z +hh:mm numeric timezone (e.g., -04:00)\n\
+ %::z +hh:mm:ss numeric time zone (e.g., -04:00:00)\n\
+ %:::z numeric time zone with : to necessary precision (e.g., -04, +05:30)\n\
+ %Z alphabetic time zone abbreviation (e.g., EDT)\n\
+\n\
+By default, date pads numeric fields with zeroes.\n\
+The following optional flags may follow `%':\n\
+\n\
+ - (hyphen) do not pad the field\n\
+ _ (underscore) pad with spaces\n\
+ 0 (zero) pad with zeros\n\
+ ^ use upper case if possible\n\
+ # use opposite case if possible\n\
+"), stdout);
+ fputs (_("\
+\n\
+After any flags comes an optional field width, as a decimal number;\n\
+then an optional modifier, which is either\n\
+E to use the locale's alternate representations if available, or\n\
+O to use the locale's alternate numeric symbols if available.\n\
+"), stdout);
+ printf (_("\nReport bugs to <%s>.\n"), PACKAGE_BUGREPORT);
+ }
+ exit (status);
}
/* Parse each line in INPUT_FILENAME as with --date and display each
resulting time and date. If the file cannot be opened, tell why
then exit. Issue a diagnostic for any lines that cannot be parsed.
- If any line cannot be parsed, return nonzero; otherwise return zero. */
+ Return true if successful. */
-static int
+static bool
batch_convert (const char *input_filename, const char *format)
{
- int status;
+ bool ok;
FILE *in_stream;
char *line;
- int line_length;
size_t buflen;
- time_t when;
- char *initial_TZ;
+ struct timespec when;
-#ifdef lint
- /* Suppress `may be used before initialized' warning. */
- initial_TZ = NULL;
-#endif
-
- if (strcmp (input_filename, "-") == 0)
+ if (STREQ (input_filename, "-"))
{
input_filename = _("standard input");
in_stream = stdin;
in_stream = fopen (input_filename, "r");
if (in_stream == NULL)
{
- error (1, errno, "`%s'", input_filename);
+ error (EXIT_FAILURE, errno, "%s", quote (input_filename));
}
}
line = NULL;
buflen = 0;
-
- if (universal_time)
- {
- initial_TZ = getenv ("TZ");
- if (initial_TZ == NULL)
- {
- initial_TZ = xstrdup ("TZ=");
- }
- else
- {
- size_t tz_len = strlen (initial_TZ);
- char *buf = xmalloc (3 + tz_len + 1);
- mempcpy (mempcpy (buf, "TZ=", 3), initial_TZ, tz_len + 1);
- initial_TZ = buf;
- }
- }
-
- status = 0;
+ ok = true;
while (1)
{
- line_length = getline (&line, &buflen, in_stream);
+ ssize_t line_length = getline (&line, &buflen, in_stream);
if (line_length < 0)
{
/* FIXME: detect/handle error here. */
break;
}
- if (universal_time)
- {
- /* When given a universal time option, restore the initial
- value of TZ before parsing each string. */
- set_tz (initial_TZ);
- }
-
- when = get_date (line, NULL);
-
- if (when == -1)
+ if (! get_date (&when, line, NULL))
{
if (line[line_length - 1] == '\n')
line[line_length - 1] = '\0';
- error (0, 0, _("invalid date ` %s'"), line);
- status = 1;
+ error (0, 0, _("invalid date %s"), quote (line));
+ ok = false;
}
else
{
- MAYBE_SET_TZ_UTC0;
- show_date (format, when);
+ ok &= show_date (format, when);
}
}
- free (initial_TZ);
-
if (fclose (in_stream) == EOF)
- error (2, errno, input_filename);
+ error (EXIT_FAILURE, errno, "%s", quote (input_filename));
- if (line != NULL)
- free (line);
+ free (line);
- return status;
+ return ok;
}
int
int optc;
const char *datestr = NULL;
const char *set_datestr = NULL;
- time_t when;
- int set_date = 0;
- char *format;
+ struct timespec when;
+ bool set_date = false;
+ char const *format = NULL;
char *batch_file = NULL;
char *reference = NULL;
struct stat refstats;
- int n_args;
- int status;
+ bool ok;
int option_specified_date;
+ initialize_main (&argc, &argv);
program_name = argv[0];
setlocale (LC_ALL, "");
bindtextdomain (PACKAGE, LOCALEDIR);
textdomain (PACKAGE);
- while ((optc = getopt_long (argc, argv, "d:f:r:Rs:u", long_options, NULL))
+ atexit (close_stdout);
+
+ while ((optc = getopt_long (argc, argv, short_options, long_options, NULL))
!= -1)
- switch (optc)
- {
- case 0:
- break;
- case 'd':
- datestr = optarg;
- break;
- case 'f':
- batch_file = optarg;
- break;
- case 'r':
- reference = optarg;
- break;
- case 'R':
- rfc_format = 1;
- break;
- case 's':
- set_datestr = optarg;
- set_date = 1;
- break;
- case 'u':
- universal_time = 1;
- break;
- default:
- usage (1);
- }
-
- if (show_version)
{
- printf ("date (%s) %s\n", GNU_PACKAGE, VERSION);
- exit (0);
- }
+ char const *new_format = NULL;
- if (show_help)
- usage (0);
+ switch (optc)
+ {
+ case 'd':
+ datestr = optarg;
+ break;
+ case 'f':
+ batch_file = optarg;
+ break;
+ case RFC_3339_OPTION:
+ {
+ static char const rfc_3339_format[][32] =
+ {
+ "%Y-%m-%d",
+ "%Y-%m-%d %H:%M:%S%:z",
+ "%Y-%m-%d %H:%M:%S.%N%:z"
+ };
+ enum Time_spec i =
+ XARGMATCH ("--rfc-3339", optarg,
+ time_spec_string + 2, time_spec + 2);
+ new_format = rfc_3339_format[i];
+ break;
+ }
+ case 'I':
+ {
+ static char const iso_8601_format[][32] =
+ {
+ "%Y-%m-%d",
+ "%Y-%m-%dT%H:%M:%S%z",
+ "%Y-%m-%dT%H:%M:%S,%N%z",
+ "%Y-%m-%dT%H%z",
+ "%Y-%m-%dT%H:%M%z"
+ };
+ enum Time_spec i =
+ (optarg
+ ? XARGMATCH ("--iso-8601", optarg, time_spec_string, time_spec)
+ : TIME_SPEC_DATE);
+ new_format = iso_8601_format[i];
+ break;
+ }
+ case 'r':
+ reference = optarg;
+ break;
+ case 'R':
+ new_format = rfc_2822_format;
+ break;
+ case 's':
+ set_datestr = optarg;
+ set_date = true;
+ break;
+ case 'u':
+ /* POSIX says that `date -u' is equivalent to setting the TZ
+ environment variable, so this option should do nothing other
+ than setting TZ. */
+ if (putenv ("TZ=UTC0") != 0)
+ xalloc_die ();
+ TZSET;
+ break;
+ case_GETOPT_HELP_CHAR;
+ case_GETOPT_VERSION_CHAR (PROGRAM_NAME, AUTHORS);
+ default:
+ usage (EXIT_FAILURE);
+ }
- n_args = argc - optind;
+ if (new_format)
+ {
+ if (format)
+ error (EXIT_FAILURE, 0, _("multiple output formats specified"));
+ format = new_format;
+ }
+ }
option_specified_date = ((datestr ? 1 : 0)
+ (batch_file ? 1 : 0)
{
error (0, 0,
_("the options to specify dates for printing are mutually exclusive"));
- usage (1);
+ usage (EXIT_FAILURE);
}
if (set_date && option_specified_date)
{
error (0, 0,
_("the options to print and set the time may not be used together"));
- usage (1);
+ usage (EXIT_FAILURE);
}
- if (n_args > 1)
+ if (optind < argc)
{
- error (0, 0, _("too many non-option arguments"));
- usage (1);
+ if (optind + 1 < argc)
+ {
+ error (0, 0, _("extra operand %s"), quote (argv[optind + 1]));
+ usage (EXIT_FAILURE);
+ }
+
+ if (argv[optind][0] == '+')
+ {
+ if (format)
+ error (EXIT_FAILURE, 0, _("multiple output formats specified"));
+ format = argv[optind++] + 1;
+ }
+ else if (set_date || option_specified_date)
+ {
+ error (0, 0,
+ _("the argument %s lacks a leading `+';\n"
+ "When using an option to specify date(s), any non-option\n"
+ "argument must be a format string beginning with `+'."),
+ quote (argv[optind]));
+ usage (EXIT_FAILURE);
+ }
}
- if ((set_date || option_specified_date)
- && n_args == 1 && argv[optind][0] != '+')
+ if (!format)
{
- error (0, 0, _("\
-the argument `%s' lacks a leading `+';\n\
-When using an option to specify date(s), any non-option\n\
-argument must be a format string beginning with `+'."),
- argv[optind]);
- usage (1);
+ format = DATE_FMT_LANGINFO ();
+ if (! *format)
+ {
+ /* Do not wrap the following literal format string with _(...).
+ For example, suppose LC_ALL is unset, LC_TIME="POSIX",
+ and LANG="ko_KR". In that case, POSIX says that LC_TIME
+ determines the format and contents of date and time strings
+ written by date, which means "date" must generate output
+ using the POSIX locale; but adding _() would cause "date"
+ to use a Korean translation of the format. */
+ format = "%a %b %e %H:%M:%S %Z %Y";
+ }
}
- if (set_date)
- datestr = set_datestr;
-
if (batch_file != NULL)
- {
- status = batch_convert (batch_file,
- (n_args == 1 ? argv[optind] + 1 : NULL));
- }
+ ok = batch_convert (batch_file, format);
else
{
- status = 0;
+ bool valid_date = true;
+ ok = true;
if (!option_specified_date && !set_date)
{
- if (n_args == 1 && argv[optind][0] != '+')
+ if (optind < argc)
{
/* Prepare to set system clock to the specified date/time
given in the POSIX-format. */
- set_date = 1;
+ set_date = true;
datestr = argv[optind];
- when = posixtime (datestr);
- format = NULL;
+ valid_date = posixtime (&when.tv_sec,
+ datestr,
+ (PDS_TRAILING_YEAR
+ | PDS_CENTURY | PDS_SECONDS));
+ when.tv_nsec = 0; /* FIXME: posixtime should set this. */
}
else
{
/* Prepare to print the current date/time. */
- datestr = _("undefined");
- time (&when);
- format = (n_args == 1 ? argv[optind] + 1 : NULL);
+ gettime (&when);
}
}
else
/* (option_specified_date || set_date) */
if (reference != NULL)
{
- if (stat (reference, &refstats))
- error (1, errno, "%s", reference);
- when = refstats.st_mtime;
+ if (stat (reference, &refstats) != 0)
+ error (EXIT_FAILURE, errno, "%s", reference);
+ when = get_stat_mtime (&refstats);
}
else
{
- when = get_date (datestr, NULL);
+ if (set_datestr)
+ datestr = set_datestr;
+ valid_date = get_date (&when, datestr, NULL);
}
-
- format = (n_args == 1 ? argv[optind] + 1 : NULL);
}
- if (when == -1)
- error (1, 0, _("invalid date `%s'"), datestr);
+ if (! valid_date)
+ error (EXIT_FAILURE, 0, _("invalid date %s"), quote (datestr));
if (set_date)
{
/* Set the system clock to the specified date, then regardless of
the success of that operation, format and print that date. */
- if (stime (&when) == -1)
- error (0, errno, _("cannot set date"));
+ if (settime (&when) != 0)
+ {
+ error (0, errno, _("cannot set date"));
+ ok = false;
+ }
}
- /* When given a universal time option, set TZ to UTC0 after
- parsing the specified date, but before printing it. */
- MAYBE_SET_TZ_UTC0;
-
- show_date (format, when);
+ ok &= show_date (format, when);
}
- if (fclose (stdout) == EOF)
- error (2, errno, _("write error"));
-
- exit (status);
+ exit (ok ? EXIT_SUCCESS : EXIT_FAILURE);
}
/* Display the date and/or time in WHEN according to the format specified
in FORMAT, followed by a newline. If FORMAT is NULL, use the
- standard output format (ctime style but with a timezone inserted). */
+ standard output format (ctime style but with a timezone inserted).
+ Return true if successful. */
-static void
-show_date (const char *format, time_t when)
+static bool
+show_date (const char *format, struct timespec when)
{
struct tm *tm;
- char *out = NULL;
- size_t out_length = 0;
-
- tm = localtime (&when);
- if (format == NULL)
+ tm = localtime (&when.tv_sec);
+ if (! tm)
{
- /* Print the date in the default format. Vanilla ANSI C strftime
- doesn't support %e, but POSIX requires it. If you don't use
- a GNU strftime, make sure yours supports %e.
- If you are not using GNU strftime, you want to change %z
- in the RFC format to %Z; this gives, however, an invalid
- RFC time format outside the continental United States and GMT. */
-
- format = (rfc_format
- ? (universal_time
- ? "%a, %_d %b %Y %H:%M:%S GMT"
- : "%a, %_d %b %Y %H:%M:%S %z")
- : "%a %b %e %H:%M:%S %Z %Y");
+ char buf[INT_BUFSIZE_BOUND (intmax_t)];
+ error (0, 0, _("time %s is out of range"),
+ (TYPE_SIGNED (time_t)
+ ? imaxtostr (when.tv_sec, buf)
+ : umaxtostr (when.tv_sec, buf)));
+ return false;
}
- else if (*format == '\0')
- {
- printf ("\n");
- return;
- }
-
- do
- {
- out_length += 200;
- out = (char *) xrealloc (out, out_length);
-
- /* Mark the first byte of the buffer so we can detect the case
- of strftime producing an empty string. Otherwise, this loop
- would not terminate when date was invoked like this
- `LANG=de date +%p' on a system with good language support. */
- out[0] = '\1';
- }
- while (strftime (out, out_length, format, tm) == 0 && out[0] != '\0');
-
- printf ("%s\n", out);
- free (out);
-}
-static void
-usage (int status)
-{
- if (status != 0)
- fprintf (stderr, _("Try `%s --help' for more information.\n"),
- program_name);
- else
- {
- printf (_("\
-Usage: %s [OPTION]... [+FORMAT]\n\
- or: %s [OPTION] [MMDDhhmm[[CC]YY][.ss]]\n\
-"),
- program_name, program_name);
- printf (_("\
-Display the current time in the given FORMAT, or set the system date.\n\
-\n\
- -d, --date=STRING display time described by STRING, not `now'\n\
- -f, --file=DATEFILE like --date once for each line of DATEFILE\n\
- -r, --reference=FILE display the last modification time of FILE\n\
- -R, --rfc-822 output RFC-822 compliant date string\n\
- -s, --set=STRING set time described by STRING\n\
- -u, --utc, --universal print or set Coordinated Universal Time\n\
- --help display this help and exit\n\
- --version output version information and exit\n\
-"));
- printf (_("\
-\n\
-FORMAT controls the output. The only valid option for the second form\n\
-specifies Coordinated Universal Time. Interpreted sequences are:\n\
-\n\
- %%%% a literal %%\n\
- %%a locale's abbreviated weekday name (Sun..Sat)\n\
- %%A locale's full weekday name, variable length (Sunday..Saturday)\n\
- %%b locale's abbreviated month name (Jan..Dec)\n\
- %%B locale's full month name, variable length (January..December)\n\
- %%c locale's date and time (Sat Nov 04 12:02:33 EST 1989)\n\
- %%d day of month (01..31)\n\
- %%D date (mm/dd/yy)\n\
- %%e day of month, blank padded ( 1..31)\n\
- %%h same as %%b\n\
- %%H hour (00..23)\n\
- %%I hour (01..12)\n\
- %%j day of year (001..366)\n\
- %%k hour ( 0..23)\n\
- %%l hour ( 1..12)\n\
- %%m month (01..12)\n\
- %%M minute (00..59)\n\
- %%n a newline\n\
- %%p locale's AM or PM\n\
- %%r time, 12-hour (hh:mm:ss [AP]M)\n\
- %%s seconds since 00:00:00, Jan 1, 1970 (a GNU extension)\n\
- %%S second (00..61)\n\
- %%t a horizontal tab\n\
- %%T time, 24-hour (hh:mm:ss)\n\
- %%U week number of year with Sunday as first day of week (00..53)\n\
- %%V week number of year with Monday as first day of week (01..52)\n\
- %%w day of week (0..6); 0 represents Sunday\n\
- %%W week number of year with Monday as first day of week (00..53)\n\
- %%x locale's date representation (mm/dd/yy)\n\
- %%X locale's time representation (%%H:%%M:%%S)\n\
- %%y last two digits of year (00..99)\n\
- %%Y year (1970...)\n\
- %%z RFC-822 style numeric timezone (-0500) (a nonstandard extension)\n\
- %%Z time zone (e.g., EDT), or nothing if no time zone is determinable\n\
-\n\
-By default, date pads numeric fields with zeroes. GNU date recognizes\n\
-the following modifiers between `%%' and a numeric directive.\n\
-\n\
- `-' (hyphen) do not pad the field\n\
- `_' (underscore) pad the field with spaces\n\
-"));
- puts (_("\nReport bugs to <sh-utils-bugs@gnu.org>."));
- }
- exit (status);
+ {
+ if (format == rfc_2822_format)
+ setlocale (LC_TIME, "C");
+ fprintftime (stdout, format, tm, 0, when.tv_nsec);
+ fputc ('\n', stdout);
+ if (format == rfc_2822_format)
+ setlocale (LC_TIME, "");
+ }
+ return true;
}
projects / platform / upstream / coreutils.git / blobdiff