Import macOS userland

adv_cmds-176
basic_cmds-55
bootstrap_cmds-116.100.1
developer_cmds-66
diskdev_cmds-667.40.1
doc_cmds-53.60.1
file_cmds-321.40.3
mail_cmds-35
misc_cmds-34
network_cmds-606.40.1
patch_cmds-17
remote_cmds-63
shell_cmds-216.60.1
system_cmds-880.60.2
text_cmds-106

1 files changed, 1177 insertions, 0 deletions

diff --git a/misc_cmds/ncal/ncal.c b/misc_cmds/ncal/ncal.c
new file mode 100644
index 0000000..5a5cbc3
--- /dev/null
+++ b/misc_cmds/ncal/ncal.c
@@ -0,0 +1,1177 @@
+/*-
+ * Copyright (c) 1997 Wolfgang Helbig
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <calendar.h>
+#include <ctype.h>
+#include <err.h>
+#include <langinfo.h>
+#include <libgen.h>
+#include <locale.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sysexits.h>
+#include <time.h>
+#include <unistd.h>
+#include <wchar.h>
+#include <wctype.h>
+#include <term.h>
+#undef lines			/* term.h defines this */
+
+/* Width of one month with backward compatibility and in regular mode*/
+#define MONTH_WIDTH_B_J 27
+#define MONTH_WIDTH_B 20
+
+#define MONTH_WIDTH_R_J 24
+#define MONTH_WIDTH_R 18
+
+#define MAX_WIDTH 64
+
+typedef struct date date;
+
+struct monthlines {
+	wchar_t name[MAX_WIDTH + 1];
+	char lines[7][MAX_WIDTH + 1];
+	char weeks[MAX_WIDTH + 1];
+	unsigned int extralen[7];
+};
+
+struct weekdays {
+	wchar_t names[7][4];
+};
+
+/* The switches from Julian to Gregorian in some countries */
+static struct djswitch {
+	const char *cc;	/* Country code according to ISO 3166 */
+	const char *nm;	/* Name of country */
+	date dt;	/* Last day of Julian calendar */
+} switches[] = {
+	{"AL", "Albania",       {1912, 11, 30}},
+	{"AT", "Austria",       {1583, 10,  5}},
+	{"AU", "Australia",     {1752,  9,  2}},
+	{"BE", "Belgium",       {1582, 12, 14}},
+	{"BG", "Bulgaria",      {1916,  3, 18}},
+	{"CA", "Canada",        {1752,  9,  2}},
+	{"CH", "Switzerland",   {1655,  2, 28}},
+	{"CN", "China",         {1911, 12, 18}},
+	{"CZ", "Czech Republic",{1584,  1,  6}},
+	{"DE", "Germany",       {1700,  2, 18}},
+	{"DK", "Denmark",       {1700,  2, 18}},
+	{"ES", "Spain",         {1582, 10,  4}},
+	{"FI", "Finland",       {1753,  2, 17}},
+	{"FR", "France",        {1582, 12,  9}},
+	{"GB", "United Kingdom",{1752,  9,  2}},
+	{"GR", "Greece",        {1924,  3,  9}},
+	{"HU", "Hungary",       {1587, 10, 21}},
+	{"IS", "Iceland",       {1700, 11, 16}},
+	{"IT", "Italy",         {1582, 10,  4}},
+	{"JP", "Japan",         {1918, 12, 18}},
+	{"LI", "Lithuania",     {1918,  2,  1}},
+	{"LN", "Latin",         {9999, 05, 31}},
+	{"LU", "Luxembourg",    {1582, 12, 14}},
+	{"LV", "Latvia",        {1918,  2,  1}},
+	{"NL", "Netherlands",   {1582, 12, 14}},
+	{"NO", "Norway",        {1700,  2, 18}},
+	{"PL", "Poland",        {1582, 10,  4}},
+	{"PT", "Portugal",      {1582, 10,  4}},
+	{"RO", "Romania",       {1919,  3, 31}},
+	{"RU", "Russia",        {1918,  1, 31}},
+	{"SI", "Slovenia",      {1919,  3,  4}},
+	{"SE", "Sweden",        {1753,  2, 17}},
+	{"TR", "Turkey",        {1926, 12, 18}},
+	{"US", "United States", {1752,  9,  2}},
+	{"YU", "Yugoslavia",    {1919,  3,  4}}
+};
+
+static struct djswitch *dftswitch =
+    switches + sizeof(switches) / sizeof(struct djswitch) - 2;
+    /* default switch (should be "US") */
+
+/* Table used to print day of month and week numbers */
+static char daystr[] = "     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";
+
+/* Table used to print day of year and week numbers */
+static char jdaystr[] = "       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";
+
+static int flag_nohighlight;	/* user doesn't want a highlighted today */
+static int flag_weeks;		/* user wants number of week */
+static int nswitch;		/* user defined switch date */
+static int nswitchb;		/* switch date for backward compatibility */
+static int highlightdate;
+
+static char	*center(char *s, char *t, int w);
+static wchar_t *wcenter(wchar_t *s, wchar_t *t, int w);
+static int	firstday(int y, int m);
+static void	highlight(char *dst, char *src, int len, int *extraletters);
+static void	mkmonthr(int year, int month, int jd_flag,
+    struct monthlines * monthl);
+static void	mkmonthb(int year, int month, int jd_flag,
+    struct monthlines * monthl);
+static void	mkweekdays(struct weekdays * wds);
+static void	monthranger(int year, int m, int jd_flag,
+    int before, int after);
+static void	monthrangeb(int year, int m, int jd_flag,
+    int before, int after);
+static int	parsemonth(const char *s, int *m, int *y);
+static void	printcc(void);
+static void	printeaster(int year, int julian, int orthodox);
+static date	*sdater(int ndays, struct date * d);
+static date	*sdateb(int ndays, struct date * d);
+static int	sndaysr(struct date * d);
+static int	sndaysb(struct date * d);
+static void	usage(void);
+
+int
+main(int argc, char *argv[])
+{
+	struct  djswitch *p, *q;	/* to search user defined switch date */
+	date	never = {10000, 1, 1};	/* outside valid range of dates */
+	date	ukswitch = {1752, 9, 2};/* switch date for Great Britain */
+	date	dt;
+	int     ch;			/* holds the option character */
+	int     m = 0;			/* month */
+	int	y = 0;			/* year */
+	int     flag_backward = 0;	/* user called cal--backward compat. */
+	int     flag_wholeyear = 0;	/* user wants the whole year */
+	int	flag_julian_cal = 0;	/* user wants Julian Calendar */
+	int     flag_julian_day = 0;	/* user wants the Julian day numbers */
+	int	flag_orthodox = 0;	/* user wants Orthodox easter */
+	int	flag_easter = 0;	/* user wants easter date */
+	int	flag_3months = 0;	/* user wants 3 month display (-3) */
+	int	flag_after = 0;		/* user wants to see months after */
+	int	flag_before = 0;	/* user wants to see months before */
+	int	flag_specifiedmonth = 0;/* user wants to see this month (-m) */
+	int	flag_givenmonth = 0;	/* user has specified month [n] */
+	int	flag_givenyear = 0;	/* user has specified year [n] */
+	char	*cp;			/* character pointer */
+	char	*flag_today = NULL;	/* debug: use date as being today */
+	char	*flag_month = NULL;	/* requested month as string */
+	char	*flag_highlightdate = NULL; /* debug: date to highlight */
+	int	before, after;
+	const char    *locale;		/* locale to get country code */
+
+	flag_nohighlight = 0;
+	flag_weeks = 0;
+
+	/*
+	 * Use locale to determine the country code,
+	 * and use the country code to determine the default
+	 * switchdate and date format from the switches table.
+	 */
+	if (setlocale(LC_ALL, "") == NULL)
+		warn("setlocale");
+	locale = setlocale(LC_TIME, NULL);
+	if (locale == NULL ||
+	    strcmp(locale, "C") == 0 ||
+	    strcmp(locale, "POSIX") == 0 ||
+	    strcmp(locale, "ASCII") == 0 ||
+	    strcmp(locale, "US-ASCII") == 0)
+		locale = "_US";
+	q = switches + sizeof(switches) / sizeof(struct djswitch);
+	for (p = switches; p != q; p++)
+		if ((cp = strstr(locale, p->cc)) != NULL && *(cp - 1) == '_')
+			break;
+	if (p == q) {
+		nswitch = ndaysj(&dftswitch->dt);
+	} else {
+		nswitch = ndaysj(&p->dt);
+		dftswitch = p;
+	}
+
+
+	/*
+	 * Get the filename portion of argv[0] and set flag_backward if
+	 * this program is called "cal".
+	 */
+	if (strncmp(basename(argv[0]), "cal", strlen("cal")) == 0)
+		flag_backward = 1;
+
+	/* Set the switch date to United Kingdom if backwards compatible */
+	if (flag_backward)
+		nswitchb = ndaysj(&ukswitch);
+
+	before = after = -1;
+
+	while ((ch = getopt(argc, argv, "3A:B:Cd:eH:hjJm:Nops:wy")) != -1)
+		switch (ch) {
+		case '3':
+			flag_3months = 1;
+			break;
+		case 'A':
+			if (flag_after > 0)
+				errx(EX_USAGE, "Double -A specified");
+			flag_after = strtol(optarg, NULL, 10);
+			if (flag_after <= 0)
+				errx(EX_USAGE,
+				    "Argument to -A must be positive");
+			break;
+		case 'B':
+			if (flag_before > 0)
+				errx(EX_USAGE, "Double -A specified");
+			flag_before = strtol(optarg, NULL, 10);
+			if (flag_before <= 0)
+				errx(EX_USAGE,
+				    "Argument to -B must be positive");
+			break;
+		case 'J':
+			if (flag_backward)
+				usage();
+			nswitch = ndaysj(&never);
+			flag_julian_cal = 1;
+			break;
+		case 'C':
+			flag_backward = 1;
+			break;
+		case 'N':
+			flag_backward = 0;
+			break;
+		case 'd':
+			flag_today = optarg;
+			break;
+		case 'H':
+			flag_highlightdate = optarg;
+			break;
+		case 'h':
+			flag_nohighlight = 1;
+			break;
+		case 'e':
+			if (flag_backward)
+				usage();
+			flag_easter = 1;
+			break;
+		case 'j':
+			flag_julian_day = 1;
+			break;
+		case 'm':
+			if (flag_specifiedmonth)
+				errx(EX_USAGE, "Double -m specified");
+			flag_month = optarg;
+			flag_specifiedmonth = 1;
+			break;
+		case 'o':
+			if (flag_backward)
+				usage();
+			flag_orthodox = 1;
+			flag_easter = 1;
+			break;
+		case 'p':
+			if (flag_backward)
+				usage();
+			printcc();
+			return (0);
+			break;
+		case 's':
+			if (flag_backward)
+				usage();
+			q = switches +
+			    sizeof(switches) / sizeof(struct djswitch);
+			for (p = switches;
+			     p != q && strcmp(p->cc, optarg) != 0; p++)
+				;
+			if (p == q)
+				errx(EX_USAGE,
+				    "%s: invalid country code", optarg);
+			nswitch = ndaysj(&(p->dt));
+			break;
+		case 'w':
+			if (flag_backward)
+				usage();
+			flag_weeks = 1;
+			break;
+		case 'y':
+			flag_wholeyear = 1;
+			break;
+		default:
+			usage();
+		}
+
+	argc -= optind;
+	argv += optind;
+
+	switch (argc) {
+	case 2:
+		if (flag_easter)
+			usage();
+		flag_month = *argv++;
+		flag_givenmonth = 1;
+		m = strtol(flag_month, NULL, 10);
+		/* FALLTHROUGH */
+	case 1:
+		y = atoi(*argv);
+		if (y < 1 || y > 9999)
+			errx(EX_USAGE, "year `%s' not in range 1..9999", *argv);
+		argv++;
+		flag_givenyear = 1;
+		break;
+	case 0:
+		if (flag_today != NULL) {
+			y = strtol(flag_today, NULL, 10);
+			m = strtol(flag_today + 5, NULL, 10);
+		} else {
+			time_t t;
+			struct tm *tm;
+
+			t = time(NULL);
+			tm = localtime(&t);
+			y = tm->tm_year + 1900;
+			m = tm->tm_mon + 1;
+		}
+		break;
+	default:
+		usage();
+	}
+
+	if (flag_month != NULL) {
+		if (parsemonth(flag_month, &m, &y)) {
+			errx(EX_USAGE,
+			    "%s is neither a month number (1..12) nor a name",
+			    flag_month);
+		}
+	}
+
+	/*
+	 * What is not supported:
+	 * -3 with -A or -B
+	 *	-3 displays 3 months, -A and -B change that behaviour.
+	 * -3 with -y
+	 *	-3 displays 3 months, -y says display a whole year.
+	 * -3 with a given year but no given month or without -m
+	 *	-3 displays 3 months, no month specified doesn't make clear
+	 *      which three months.
+	 * -m with a given month
+	 *	conflicting arguments, both specify the same field.
+	 * -y with -m
+	 *	-y displays the whole year, -m displays a single month.
+	 * -y with a given month
+	 *	-y displays the whole year, the given month displays a single
+	 *	month.
+	 * -y with -A or -B
+	 *	-y displays the whole year, -A and -B display extra months.
+	 */
+
+	/* -3 together with -A or -B. */
+	if (flag_3months && (flag_after || flag_before))
+		errx(EX_USAGE, "-3 together with -A and -B is not supported.");
+	/* -3 together with -y. */
+	if (flag_3months && flag_wholeyear)
+		errx(EX_USAGE, "-3 together with -y is not supported.");
+	/* -3 together with givenyear but no givenmonth. */
+	if (flag_3months && flag_givenyear &&
+	    !(flag_givenmonth || flag_specifiedmonth))
+		errx(EX_USAGE,
+		    "-3 together with a given year but no given month is "
+		    "not supported.");
+	/* -m together with xx xxxx. */
+	if (flag_specifiedmonth && flag_givenmonth)
+		errx(EX_USAGE,
+		    "-m together with a given month is not supported.");
+	/* -y together with -m. */
+	if (flag_wholeyear && flag_specifiedmonth)
+		errx(EX_USAGE, "-y together with -m is not supported.");
+	/* -y together with xx xxxx. */
+	if (flag_wholeyear && flag_givenmonth)
+		errx(EX_USAGE, "-y together a given month is not supported.");
+	/* -y together with -A or -B. */
+	if (flag_wholeyear && (flag_before > 0 || flag_after > 0))
+		errx(EX_USAGE, "-y together a -A or -B is not supported.");
+	/* The rest should be fine. */
+
+	/* Select the period to display, in order of increasing priority .*/
+	if (flag_wholeyear ||
+	    (flag_givenyear && !(flag_givenmonth || flag_specifiedmonth))) {
+		m = 1;
+		before = 0;
+		after = 11;
+	}
+	if (flag_givenyear && flag_givenmonth) {
+		before = 0;
+		after = 0;
+	}
+	if (flag_specifiedmonth) {
+		before = 0;
+		after = 0;
+	}
+	if (flag_before) {
+		before = flag_before;
+	}
+	if (flag_after) {
+		after = flag_after;
+	}
+	if (flag_3months) {
+		before = 1;
+		after = 1;
+	}
+	if (after == -1)
+		after = 0;
+	if (before == -1)
+		before = 0;
+
+	/* Highlight a specified day or today .*/
+	if (flag_highlightdate != NULL) {
+		dt.y = strtol(flag_highlightdate, NULL, 10);
+		dt.m = strtol(flag_highlightdate + 5, NULL, 10);
+		dt.d = strtol(flag_highlightdate + 8, NULL, 10);
+	} else {
+		time_t t;
+		struct tm *tm1;
+
+		t = time(NULL);
+		tm1 = localtime(&t);
+		dt.y = tm1->tm_year + 1900;
+		dt.m = tm1->tm_mon + 1;
+		dt.d = tm1->tm_mday;
+	}
+	highlightdate = sndaysb(&dt);
+
+	/* And now we finally start to calculate and output calendars. */
+	if (flag_easter)
+		printeaster(y, flag_julian_cal, flag_orthodox);
+	else
+		if (flag_backward)
+			monthrangeb(y, m, flag_julian_day, before, after);
+		else
+			monthranger(y, m, flag_julian_day, before, after);
+	return (0);
+}
+
+static void
+usage(void)
+{
+
+	fputs(
+"Usage: cal [general options] [-hjy] [[month] year]\n"
+"       cal [general options] [-hj] [-m month] [year]\n"
+"       ncal [general options] [-hJjpwy] [-s country_code] [[month] year]\n"
+"       ncal [general options] [-hJeo] [year]\n"
+"General options: [-NC3] [-A months] [-B months]\n"
+"For debug the highlighting: [-H yyyy-mm-dd] [-d yyyy-mm]\n",
+	    stderr);
+	exit(EX_USAGE);
+}
+
+/* Print the assumed switches for all countries. */
+static void
+printcc(void)
+{
+	struct djswitch *p;
+	int n;	/* number of lines to print */
+	int m;	/* offset from left to right table entry on the same line */
+
+#define FSTR "%c%s %-15s%4d-%02d-%02d"
+#define DFLT(p) ((p) == dftswitch ? '*' : ' ')
+#define FSTRARG(p) DFLT(p), (p)->cc, (p)->nm, (p)->dt.y, (p)->dt.m, (p)->dt.d
+
+	n = sizeof(switches) / sizeof(struct djswitch);
+	m = (n + 1) / 2;
+	n /= 2;
+	for (p = switches; p != switches + n; p++)
+		printf(FSTR"     "FSTR"\n", FSTRARG(p), FSTRARG(p+m));
+	if (m != n)
+		printf(FSTR"\n", FSTRARG(p));
+}
+
+/* Print the date of easter sunday. */
+static void
+printeaster(int y, int julian, int orthodox)
+{
+	date    dt;
+	struct tm tm;
+	char    buf[MAX_WIDTH];
+	static int d_first = -1;
+
+	if (d_first < 0)
+		d_first = (*nl_langinfo(D_MD_ORDER) == 'd');
+	/* force orthodox easter for years before 1583 */
+	if (y < 1583)
+		orthodox = 1;
+
+	if (orthodox)
+		if (julian)
+			easteroj(y, &dt);
+		else
+			easterog(y, &dt);
+	else
+		easterg(y, &dt);
+
+	memset(&tm, 0, sizeof(tm));
+	tm.tm_year = dt.y - 1900;
+	tm.tm_mon  = dt.m - 1;
+	tm.tm_mday = dt.d;
+	strftime(buf, sizeof(buf), d_first ? "%e %B %Y" : "%B %e %Y",  &tm);
+	printf("%s\n", buf);
+}
+
+#define MW(mw, me)		((mw) + me)
+#define	DECREASEMONTH(m, y) 		\
+		if (--m == 0) {		\
+			m = 12;		\
+			y--;		\
+		}
+#define	INCREASEMONTH(m, y)		\
+		if (++(m) == 13) {	\
+			(m) = 1;	\
+			(y)++;		\
+		}
+#define	M2Y(m)	((m) / 12)
+#define	M2M(m)	(1 + (m) % 12) 
+
+/* Print all months for the period in the range [ before .. y-m .. after ]. */
+static void
+monthrangeb(int y, int m, int jd_flag, int before, int after)
+{
+	struct monthlines year[12];
+	struct weekdays wds;
+	char	s[MAX_WIDTH], t[MAX_WIDTH];
+	wchar_t	ws[MAX_WIDTH], ws1[MAX_WIDTH];
+	const char	*wdss;
+	int     i, j;
+	int     mpl;
+	int     mw;
+	int	m1, m2;
+	int	printyearheader;
+	int	prevyear = -1;
+
+	mpl = jd_flag ? 2 : 3;
+	mw = jd_flag ? MONTH_WIDTH_B_J : MONTH_WIDTH_B;
+	wdss = (mpl == 2) ? " " : "";
+
+	while (before != 0) {
+		DECREASEMONTH(m, y);
+		before--;
+		after++;
+	}
+	m1 = y * 12 + m - 1;
+	m2 = m1 + after;
+
+	mkweekdays(&wds);
+
+	/*
+	 * The year header is printed when there are more than 'mpl' months
+	 * and if the first month is a multitude of 'mpl'.
+	 * If not, it will print the year behind every month.
+	 */
+	printyearheader = (after >= mpl - 1) && (M2M(m1) - 1) % mpl == 0;
+
+	m = m1;
+	while (m <= m2) {
+		int count = 0;
+		for (i = 0; i != mpl && m + i <= m2; i++) {
+			mkmonthb(M2Y(m + i), M2M(m + i) - 1, jd_flag, year + i);
+			count++;
+		}
+
+		/* Empty line between two rows of months */
+		if (m != m1)
+			printf("\n");
+
+		/* Year at the top. */
+		if (printyearheader && M2Y(m) != prevyear) {
+			sprintf(s, "%d", M2Y(m));
+			printf("%s\n", center(t, s, mpl * mw));
+			prevyear = M2Y(m);
+		}
+
+		/* Month names. */
+		for (i = 0; i < count; i++)
+			if (printyearheader)
+				wprintf(L"%-*ls  ",
+				    mw, wcenter(ws, year[i].name, mw));
+			else {
+				swprintf(ws, sizeof(ws)/sizeof(ws[0]),
+				    L"%-ls %d", year[i].name, M2Y(m + i));
+				wprintf(L"%-*ls  ", mw, wcenter(ws1, ws, mw));
+			}
+		printf("\n");
+
+		/* Day of the week names. */
+		for (i = 0; i < count; i++) {
+			wprintf(L"%s%ls%s%ls%s%ls%s%ls%s%ls%s%ls%s%ls ",
+				wdss, wds.names[6], wdss, wds.names[0],
+				wdss, wds.names[1], wdss, wds.names[2],
+				wdss, wds.names[3], wdss, wds.names[4],
+				wdss, wds.names[5]);
+		}
+		printf("\n");
+
+		/* And the days of the month. */
+		for (i = 0; i != 6; i++) {
+			for (j = 0; j < count; j++)
+				printf("%-*s  ",
+				    MW(mw, year[j].extralen[i]),
+					year[j].lines[i]+1);
+			printf("\n");
+		}
+
+		m += mpl;
+	}
+}
+
+static void
+monthranger(int y, int m, int jd_flag, int before, int after)
+{
+	struct monthlines year[12];
+	struct weekdays wds;
+	char    s[MAX_WIDTH], t[MAX_WIDTH];
+	int     i, j;
+	int     mpl;
+	int     mw;
+	int	m1, m2;
+	int	prevyear = -1;
+	int	printyearheader;
+
+	mpl = jd_flag ? 3 : 4;
+	mw = jd_flag ? MONTH_WIDTH_R_J : MONTH_WIDTH_R;
+
+	while (before != 0) {
+		DECREASEMONTH(m, y);
+		before--;
+		after++;
+	}
+	m1 = y * 12 + m - 1;
+	m2 = m1 + after;
+
+	mkweekdays(&wds);
+
+	/*
+	 * The year header is printed when there are more than 'mpl' months
+	 * and if the first month is a multitude of 'mpl'.
+	 * If not, it will print the year behind every month.
+	 */
+	printyearheader = (after >= mpl - 1) && (M2M(m1) - 1) % mpl == 0;
+
+	m = m1;
+	while (m <= m2) {
+		int count = 0;
+		for (i = 0; i != mpl && m + i <= m2; i++) {
+			mkmonthr(M2Y(m + i), M2M(m + i) - 1, jd_flag, year + i);
+			count++;
+		}
+
+		/* Empty line between two rows of months. */
+		if (m != m1)
+			printf("\n");
+
+		/* Year at the top. */
+		if (printyearheader && M2Y(m) != prevyear) {
+			sprintf(s, "%d", M2Y(m));
+			printf("%s\n", center(t, s, mpl * mw));
+			prevyear = M2Y(m);
+		}
+
+		/* Month names. */
+		wprintf(L"    ");
+		for (i = 0; i < count; i++)
+			if (printyearheader)
+				wprintf(L"%-*ls", mw, year[i].name);
+			else
+				wprintf(L"%-ls %-*d", year[i].name,
+				    mw - wcslen(year[i].name) - 1, M2Y(m + i));
+		printf("\n");
+
+		/* And the days of the month. */
+		for (i = 0; i != 7; i++) {
+			/* Week day */
+			wprintf(L"%.2ls", wds.names[i]);
+
+			/* Full months */
+			for (j = 0; j < count; j++)
+				printf("%-*s",
+				    MW(mw, year[j].extralen[i]),
+					year[j].lines[i]);
+			printf("\n");
+		}
+
+		/* Week numbers. */
+		if (flag_weeks) {
+			printf("  ");
+			for (i = 0; i < count; i++)
+				printf("%-*s", mw, year[i].weeks);
+			printf("\n");
+		}
+
+		m += mpl;
+	}
+	return;
+}
+
+static void
+mkmonthr(int y, int m, int jd_flag, struct monthlines *mlines)
+{
+
+	struct tm tm;		/* for strftime printing local names of
+				 * months */
+	date    dt;		/* handy date */
+	int     dw;		/* width of numbers */
+	int     first;		/* first day of month */
+	int     firstm;		/* first day of first week of month */
+	int     i, j, k, l;	/* just indices */
+	int     last;		/* the first day of next month */
+	int     jan1 = 0;	/* the first day of this year */
+	char   *ds;		/* pointer to day strings (daystr or
+				 * jdaystr) */
+
+	/* Set name of month. */
+	memset(&tm, 0, sizeof(tm));
+	tm.tm_mon = m;
+	wcsftime(mlines->name, sizeof(mlines->name) / sizeof(mlines->name[0]),
+		 L"%OB", &tm);
+	mlines->name[0] = towupper(mlines->name[0]);
+
+	/*
+	 * Set first and last to the day number of the first day of this
+	 * month and the first day of next month respectively. Set jan1 to
+	 * the day number of the first day of this year.
+	 */
+	first = firstday(y, m + 1);
+	if (m == 11)
+		last = firstday(y + 1, 1);
+	else
+		last = firstday(y, m + 2);
+
+	if (jd_flag)
+		jan1 = firstday(y, 1);
+
+	/*
+	 * Set firstm to the day number of monday of the first week of
+	 * this month. (This might be in the last month)
+	 */
+	firstm = first - weekday(first);
+
+	/* Set ds (daystring) and dw (daywidth) according to the jd_flag. */
+	if (jd_flag) {
+		ds = jdaystr;
+		dw = 4;
+	} else {
+		ds = daystr;
+		dw = 3;
+	}
+
+	/*
+	 * Fill the lines with day of month or day of year (julian day)
+	 * line index: i, each line is one weekday. column index: j, each
+	 * column is one day number. print column index: k.
+	 */
+	for (i = 0; i != 7; i++) {
+		l = 0;
+		for (j = firstm + i, k = 0; j < last; j += 7, k += dw) {
+			if (j >= first) {
+				if (jd_flag)
+					dt.d = j - jan1 + 1;
+				else
+					sdater(j, &dt);
+				if (j == highlightdate && !flag_nohighlight
+				 && isatty(STDOUT_FILENO))
+					highlight(mlines->lines[i] + k,
+					    ds + dt.d * dw, dw, &l);
+				else
+					memcpy(mlines->lines[i] + k + l,
+					       ds + dt.d * dw, dw);
+			} else
+				memcpy(mlines->lines[i] + k + l, "    ", dw);
+		}
+		mlines->lines[i][k + l] = '\0';
+		mlines->extralen[i] = l;
+	}
+
+	/* fill the weeknumbers. */
+	if (flag_weeks) {
+		for (j = firstm, k = 0; j < last;  k += dw, j += 7)
+			if (j <= nswitch)
+				memset(mlines->weeks + k, ' ', dw);
+			else
+				memcpy(mlines->weeks + k,
+				    ds + week(j, &i)*dw, dw);
+		mlines->weeks[k] = '\0';
+	}
+}
+
+static void
+mkmonthb(int y, int m, int jd_flag, struct monthlines *mlines)
+{
+
+	struct tm tm;		/* for strftime printing local names of
+				 * months */
+	date    dt;		/* handy date */
+	int     dw;		/* width of numbers */
+	int     first;		/* first day of month */
+	int     firsts;		/* sunday of first week of month */
+	int     i, j, k, l;	/* just indices */
+	int     jan1 = 0;	/* the first day of this year */
+	int     last;		/* the first day of next month */
+	char   *ds;		/* pointer to day strings (daystr or
+				 * jdaystr) */
+
+	/* Set ds (daystring) and dw (daywidth) according to the jd_flag */
+	if (jd_flag) {
+		ds = jdaystr;
+		dw = 4;
+	} else {
+		ds = daystr;
+		dw = 3;
+	}
+
+	/* Set name of month centered. */
+	memset(&tm, 0, sizeof(tm));
+	tm.tm_mon = m;
+	wcsftime(mlines->name, sizeof(mlines->name) / sizeof(mlines->name[0]),
+		 L"%OB", &tm);
+	mlines->name[0] = towupper(mlines->name[0]);
+
+	/*
+	 * Set first and last to the day number of the first day of this
+	 * month and the first day of next month respectively. Set jan1 to
+	 * the day number of Jan 1st of this year.
+	 */
+	dt.y = y;
+	dt.m = m + 1;
+	dt.d = 1;
+	first = sndaysb(&dt);
+	if (m == 11) {
+		dt.y = y + 1;
+		dt.m = 1;
+		dt.d = 1;
+	} else {
+		dt.y = y;
+		dt.m = m + 2;
+		dt.d = 1;
+	}
+	last = sndaysb(&dt);
+
+	if (jd_flag) {
+		dt.y = y;
+		dt.m = 1;
+		dt.d = 1;
+		jan1 = sndaysb(&dt);
+	}
+
+	/*
+	 * Set firsts to the day number of sunday of the first week of
+	 * this month. (This might be in the last month)
+	 */
+	firsts = first - (weekday(first)+1) % 7;
+
+	/*
+	 * Fill the lines with day of month or day of year (Julian day)
+	 * line index: i, each line is one week. column index: j, each
+	 * column is one day number. print column index: k.
+	 */
+	for (i = 0; i != 6; i++) {
+		l = 0;
+		for (j = firsts + 7 * i, k = 0; j < last && k != dw * 7;
+		    j++, k += dw) { 
+			if (j >= first) {
+				if (jd_flag)
+					dt.d = j - jan1 + 1;
+				else
+					sdateb(j, &dt);
+				if (j == highlightdate && !flag_nohighlight)
+					highlight(mlines->lines[i] + k,
+					    ds + dt.d * dw, dw, &l);
+				else
+					memcpy(mlines->lines[i] + k + l,
+					       ds + dt.d * dw, dw);
+			} else
+				memcpy(mlines->lines[i] + k + l, "    ", dw);
+		}
+		if (k == 0)
+			mlines->lines[i][1] = '\0';
+		else
+			mlines->lines[i][k + l] = '\0';
+		mlines->extralen[i] = l;
+	}
+}
+
+/* Put the local names of weekdays into the wds. */
+static void
+mkweekdays(struct weekdays *wds)
+{
+	int i, len, width = 0;
+	struct tm tm;
+	wchar_t buf[20];
+
+	memset(&tm, 0, sizeof(tm));
+
+	for (i = 0; i != 7; i++) {
+		tm.tm_wday = (i+1) % 7;
+		wcsftime(buf, sizeof(buf)/sizeof(buf[0]), L"%a", &tm);
+		for (len = 2; len > 0; --len) {
+			if ((width = wcswidth(buf, len)) <= 2)
+				break;
+		}
+		wmemset(wds->names[i], L'\0', 4);
+		if (width == 1)
+			wds->names[i][0] = L' ';
+		wcsncat(wds->names[i], buf, len);
+		wcsncat(wds->names[i], L" ", 1);
+	}
+}
+
+/*
+ * Compute the day number of the first existing date after the first day in
+ * month. (the first day in month and even the month might not exist!)
+ */
+static int
+firstday(int y, int m)
+{
+	date dt;
+	int nd;
+
+	dt.y = y;
+	dt.m = m;
+	dt.d = 1;
+	nd = sndaysr(&dt);
+	for (;;) {
+		sdater(nd, &dt);
+		if ((dt.m >= m && dt.y == y) || dt.y > y)
+			return (nd);
+		else
+			nd++;
+	}
+	/* NEVER REACHED */
+}
+
+/*
+ * Compute the number of days from date, obey the local switch from
+ * Julian to Gregorian if specified by the user.
+ */
+static int
+sndaysr(struct date *d)
+{
+
+	if (nswitch != 0)
+		if (nswitch < ndaysj(d))
+			return (ndaysg(d));
+		else
+			return (ndaysj(d));
+	else
+		return ndaysg(d);
+}
+
+/*
+ * Compute the number of days from date, obey the switch from
+ * Julian to Gregorian as used by UK and her colonies.
+ */
+static int
+sndaysb(struct date *d)
+{
+
+	if (nswitchb < ndaysj(d))
+		return (ndaysg(d));
+	else
+		return (ndaysj(d));
+}
+
+/* Inverse of sndays. */
+static struct date *
+sdater(int nd, struct date *d)
+{
+
+	if (nswitch < nd)
+		return (gdate(nd, d));
+	else
+		return (jdate(nd, d));
+}
+
+/* Inverse of sndaysb. */
+static struct date *
+sdateb(int nd, struct date *d)
+{
+
+	if (nswitchb < nd)
+		return (gdate(nd, d));
+	else
+		return (jdate(nd, d));
+}
+
+/* Center string t in string s of length w by putting enough leading blanks. */
+static char *
+center(char *s, char *t, int w)
+{
+	char blanks[MAX_WIDTH];
+
+	memset(blanks, ' ', sizeof(blanks));
+	sprintf(s, "%.*s%s", (int)(w - strlen(t)) / 2, blanks, t);
+	return (s);
+}
+
+/* Center string t in string s of length w by putting enough leading blanks. */
+static wchar_t *
+wcenter(wchar_t *s, wchar_t *t, int w)
+{
+	char blanks[MAX_WIDTH];
+
+	memset(blanks, ' ', sizeof(blanks));
+	swprintf(s, MAX_WIDTH, L"%.*s%ls", (int)(w - wcslen(t)) / 2, blanks, t);
+	return (s);
+}
+
+static int
+parsemonth(const char *s, int *m, int *y)
+{
+	int nm, ny;
+	char *cp;
+	struct tm tm;
+
+	nm = (int)strtol(s, &cp, 10);
+	if (cp != s) {
+		ny = *y;
+		if (*cp == '\0') {
+			;	/* no special action */
+		} else if (*cp == 'f' || *cp == 'F') {
+			if (nm <= *m)
+				ny++;
+		} else if (*cp == 'p' || *cp == 'P') {
+			if (nm >= *m)
+				ny--;
+		} else
+			return (1);
+		if (nm < 1 || nm > 12)
+			return 1;
+		*m = nm;
+		*y = ny;
+		return (0);
+	}
+	if (strptime(s, "%B", &tm) != NULL || strptime(s, "%b", &tm) != NULL) {
+		*m = tm.tm_mon + 1;
+		return (0);
+	}
+	return (1);
+}
+
+static void
+highlight(char *dst, char *src, int len, int *extralen)
+{
+	static int first = 1;
+	static const char *term_so, *term_se;
+
+	if (first) {
+		char tbuf[1024], cbuf[512], *b;
+
+		term_se = term_so = NULL;
+
+		/* On how to highlight on this type of terminal (if any). */
+		if (isatty(STDOUT_FILENO) && tgetent(tbuf, NULL) == 1) {
+			b = cbuf;
+			term_so = tgetstr("so", &b);
+			term_se = tgetstr("se", &b);
+		}
+
+		first = 0;
+	}
+
+	/*
+	 * This check is not necessary, should have been handled before calling
+	 * this function.
+	 */
+	if (flag_nohighlight) {
+		memcpy(dst, src, len);
+		return;
+	}
+
+	/*
+	 * If it is a real terminal, use the data from the termcap database.
+	 */
+	if (term_so != NULL && term_se != NULL) {
+		/* separator. */
+		dst[0] = ' ';
+		dst++;
+		/* highlight on. */
+		memcpy(dst, term_so, strlen(term_so));
+		dst += strlen(term_so);
+		/* the actual text. (minus leading space) */
+		len--;
+		src++;
+		memcpy(dst, src, len);
+		dst += len;
+		/* highlight off. */
+		memcpy(dst, term_se, strlen(term_se));
+		*extralen = strlen(term_so) + strlen(term_se);
+		return;
+	}
+
+	/*
+	 * Otherwise, print a _, backspace and the letter.
+	 */
+	*extralen = 0;
+	/* skip leading space. */
+	src++;
+	len--;
+	/* separator. */
+	dst[0] = ' ';
+	dst++;
+	while (len > 0) {
+		/* _ and backspace. */
+		memcpy(dst, "_\010", 2);
+		dst += 2;
+		*extralen += 2;
+		/* the character. */
+		*dst++ = *src++;
+		len--;
+	}
+	return;
+}