+++ /dev/null
-/*
- * Copyright (c) 1987, 1993
- * The Regents of the University of California. 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.
- * 3. All advertising materials mentioning features or use of this software
- * must display the following acknowledgement:
- * This product includes software developed by the University of
- * California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- * may be used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
- */
-
-#if defined(LIBC_SCCS) && !defined(lint)
-static char sccsid[] = "@(#)timezone.c 8.1 (Berkeley) 6/4/93";
-#endif /* LIBC_SCCS and not lint */
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD: src/lib/libc/gen/timezone.c,v 1.5 2002/02/01 01:08:48 obrien Exp $");
-
-#include <sys/types.h>
-#include <sys/time.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#define TZ_MAX_CHARS 255
-
-char *_tztab();
-
-/*
- * timezone --
- * The arguments are the number of minutes of time you are westward
- * from Greenwich and whether DST is in effect. It returns a string
- * giving the name of the local timezone. Should be replaced, in the
- * application code, by a call to localtime.
- */
-
-static char czone[TZ_MAX_CHARS]; /* space for zone name */
-
-char *
-timezone(zone, dst)
- int zone,
- dst;
-{
- char *beg,
- *end;
-
- if ( (beg = getenv("TZNAME")) ) { /* set in environment */
- if ( (end = index(beg, ',')) ) {/* "PST,PDT" */
- if (dst)
- return(++end);
- *end = '\0';
- (void)strncpy(czone,beg,sizeof(czone) - 1);
- czone[sizeof(czone) - 1] = '\0';
- *end = ',';
- return(czone);
- }
- return(beg);
- }
- return(_tztab(zone,dst)); /* default: table or created zone */
-}
-
-static struct zone {
- int offset;
- char *stdzone;
- char *dlzone;
-} zonetab[] = {
- {-1*60, "MET", "MET DST"}, /* Middle European */
- {-2*60, "EET", "EET DST"}, /* Eastern European */
- {4*60, "AST", "ADT"}, /* Atlantic */
- {5*60, "EST", "EDT"}, /* Eastern */
- {6*60, "CST", "CDT"}, /* Central */
- {7*60, "MST", "MDT"}, /* Mountain */
- {8*60, "PST", "PDT"}, /* Pacific */
-#ifdef notdef
- /* there's no way to distinguish this from WET */
- {0, "GMT", 0}, /* Greenwich */
-#endif
- {0*60, "WET", "WET DST"}, /* Western European */
- {-10*60,"EST", "EST"}, /* Aust: Eastern */
- {-10*60+30,"CST", "CST"}, /* Aust: Central */
- {-8*60, "WST", 0}, /* Aust: Western */
- {-1}
-};
-
-/*
- * _tztab --
- * check static tables or create a new zone name; broken out so that
- * we can make a guess as to what the zone is if the standard tables
- * aren't in place in /etc. DO NOT USE THIS ROUTINE OUTSIDE OF THE
- * STANDARD LIBRARY.
- */
-char *
-_tztab(zone,dst)
- int zone;
- int dst;
-{
- struct zone *zp;
- char sign;
-
- for (zp = zonetab; zp->offset != -1;++zp) /* static tables */
- if (zp->offset == zone) {
- if (dst && zp->dlzone)
- return(zp->dlzone);
- if (!dst && zp->stdzone)
- return(zp->stdzone);
- }
-
- if (zone < 0) { /* create one */
- zone = -zone;
- sign = '+';
- }
- else
- sign = '-';
- (void)snprintf(czone, sizeof(czone),
- "GMT%c%d:%02d",sign,zone / 60,zone % 60);
- return(czone);
-}
projects / apple / libc.git / blobdiff