1/* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or http://www.opensolaris.org/os/licensing. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 */ 22/* 23 * Copyright 2004 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27/* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */ 28/* All Rights Reserved */ 29 30 31#pragma ident "%Z%%M% %I% %E% SMI" 32 33#include <langinfo.h> 34#include <locale.h> 35#include <nl_types.h> 36#include <stdio.h> 37#include <stdlib.h> 38#include <time.h> 39 40static int number(char *); 41static int jan1(const int); 42static void badmonth(void); 43static void badyear(void); 44static void usage(void); 45static void cal(const int, const int, char *, const int); 46static void load_months(void); 47static void pstr(char *, const int); 48 49#define DAYW " S M Tu W Th F S" 50#define TITLE " %s %u\n" 51#define YEAR "\n\n\n\t\t\t\t%u\n\n" 52#define MONTH "\t%4.3s\t\t\t%.3s\t\t%10.3s\n" 53 54static char *months[] = { 55 "January", "February", "March", "April", 56 "May", "June", "July", "August", 57 "September", "October", "November", "December", 58}; 59 60static char *short_months[] = { 61 "Jan", "Feb", "Mar", "Apr", 62 "May", "Jun", "Jul", "Aug", 63 "Sep", "Oct", "Nov", "Dec", 64}; 65 66static char mon[] = { 67 0, 68 31, 29, 31, 30, 69 31, 30, 31, 31, 70 30, 31, 30, 31, 71}; 72 73static char *myname; 74static char string[432]; 75static struct tm *thetime; 76static time_t timbuf; 77 78int 79main(int argc, char *argv[]) 80{ 81 int y, i, j; 82 int m; 83 char *time_locale; 84 char *ldayw; 85 86 myname = argv[0]; 87 88 (void) setlocale(LC_ALL, ""); 89#if !defined(TEXT_DOMAIN) 90#define TEXT_DOMAIN "SYS_TEST" 91#endif 92 (void) textdomain(TEXT_DOMAIN); 93 94 95 while (getopt(argc, argv, "") != EOF) 96 usage(); 97 98 argc -= optind; 99 argv = &argv[optind]; 100 101 time_locale = setlocale(LC_TIME, NULL); 102 if ((time_locale[0] != 'C') || (time_locale[1] != '\0')) 103 load_months(); 104 105 /* 106 * TRANSLATION_NOTE 107 * This message is to be used for displaying 108 * the names of the seven days, from Sunday to Saturday. 109 * The length of the name of each one should be two or less. 110 */ 111 ldayw = dcgettext(NULL, DAYW, LC_TIME); 112 113 switch (argc) { 114 case 0: 115 timbuf = time(&timbuf); 116 thetime = localtime(&timbuf); 117 m = thetime->tm_mon + 1; 118 y = thetime->tm_year + 1900; 119 break; 120 case 1: 121 goto xlong; 122 case 2: 123 m = number(argv[0]); 124 y = number(argv[1]); 125 break; 126 default: 127 usage(); 128 } 129 130/* 131 * print out just month 132 */ 133 134 if (m < 1 || m > 12) 135 badmonth(); 136 if (y < 1 || y > 9999) 137 badyear(); 138 /* 139 * TRANSLATION_NOTE 140 * This message is to be used for displaying 141 * specified month and year. 142 */ 143 (void) printf(dcgettext(NULL, TITLE, LC_TIME), months[m-1], y); 144 (void) printf("%s\n", ldayw); 145 cal(m, y, string, 24); 146 for (i = 0; i < 6*24; i += 24) 147 pstr(string+i, 24); 148 return (0); 149 150/* 151 * print out complete year 152 */ 153 154xlong: 155 y = number(argv[0]); 156 if (y < 1 || y > 9999) 157 badyear(); 158 /* 159 * TRANSLATION_NOTE 160 * This message is to be used for displaying 161 * specified year. 162 */ 163 (void) printf(dcgettext(NULL, YEAR, LC_TIME), y); 164 for (i = 0; i < 12; i += 3) { 165 for (j = 0; j < 6*72; j++) 166 string[j] = '\0'; 167 /* 168 * TRANSLATION_NOTE 169 * This message is to be used for displaying 170 * names of three months per a line and should be 171 * correctly translated according to the display width 172 * of the names of months. 173 */ 174 (void) printf( 175 dcgettext(NULL, MONTH, LC_TIME), 176 short_months[i], short_months[i+1], short_months[i+2]); 177 (void) printf("%s %s %s\n", ldayw, ldayw, ldayw); 178 cal(i+1, y, string, 72); 179 cal(i+2, y, string+23, 72); 180 cal(i+3, y, string+46, 72); 181 for (j = 0; j < 6*72; j += 72) 182 pstr(string+j, 72); 183 } 184 (void) printf("\n\n\n"); 185 return (0); 186} 187 188static int 189number(char *str) 190{ 191 int n, c; 192 char *s; 193 194 n = 0; 195 s = str; 196 /*LINTED*/ 197 while (c = *s++) { 198 if (c < '0' || c > '9') 199 return (0); 200 n = n*10 + c-'0'; 201 } 202 return (n); 203} 204 205static void 206pstr(char *str, const int n) 207{ 208 int i; 209 char *s; 210 211 s = str; 212 i = n; 213 while (i--) 214 if (*s++ == '\0') 215 s[-1] = ' '; 216 i = n+1; 217 while (i--) 218 if (*--s != ' ') 219 break; 220 s[1] = '\0'; 221 (void) printf("%s\n", str); 222} 223 224static void 225cal(const int m, const int y, char *p, const int w) 226{ 227 int d, i; 228 char *s; 229 230 s = (char *)p; 231 d = jan1(y); 232 mon[2] = 29; 233 mon[9] = 30; 234 235 switch ((jan1(y+1)+7-d)%7) { 236 237 /* 238 * non-leap year 239 */ 240 case 1: 241 mon[2] = 28; 242 break; 243 244 /* 245 * 1752 246 */ 247 default: 248 mon[9] = 19; 249 break; 250 251 /* 252 * leap year 253 */ 254 case 2: 255 ; 256 } 257 for (i = 1; i < m; i++) 258 d += mon[i]; 259 d %= 7; 260 s += 3*d; 261 for (i = 1; i <= mon[m]; i++) { 262 if (i == 3 && mon[m] == 19) { 263 i += 11; 264 mon[m] += 11; 265 } 266 if (i > 9) 267 *s = i/10+'0'; 268 s++; 269 *s++ = i%10+'0'; 270 s++; 271 if (++d == 7) { 272 d = 0; 273 s = p+w; 274 p = s; 275 } 276 } 277} 278 279/* 280 * return day of the week 281 * of jan 1 of given year 282 */ 283 284static int 285jan1(const int yr) 286{ 287 int y, d; 288 289/* 290 * normal gregorian calendar 291 * one extra day per four years 292 */ 293 294 y = yr; 295 d = 4+y+(y+3)/4; 296 297/* 298 * julian calendar 299 * regular gregorian 300 * less three days per 400 301 */ 302 303 if (y > 1800) { 304 d -= (y-1701)/100; 305 d += (y-1601)/400; 306 } 307 308/* 309 * great calendar changeover instant 310 */ 311 312 if (y > 1752) 313 d += 3; 314 315 return (d%7); 316} 317 318static void 319load_months(void) 320{ 321 int month; 322 323 for (month = MON_1; month <= MON_12; month++) 324 months[month - MON_1] = nl_langinfo(month); 325 for (month = ABMON_1; month <= ABMON_12; month++) 326 short_months[month - ABMON_1] = nl_langinfo(month); 327} 328 329static void 330badmonth() 331{ 332 (void) fprintf(stderr, gettext("%s: bad month\n"), myname); 333 usage(); 334} 335 336static void 337badyear() 338{ 339 (void) fprintf(stderr, gettext("%s: bad year\n"), myname); 340 usage(); 341} 342 343static void 344usage(void) 345{ 346 (void) fprintf(stderr, gettext("usage: %s [ [month] year ]\n"), myname); 347 exit(1); 348} 349