shadow/libmisc/tz.c
nekral-guest 39e5c0a1ab Fix some compilation warnings:
* src/login.c: "dereferencing type-punned pointer will break
   strict-aliasing rules", add a variable indirection: ptr_pam_user.
 * lib/commonio.c: do not initialize the sb stat structure.
 * lib/pwio.c, lib/shadowio.c, lib/sgroupio.c, lib/groupio.c:
   initialize the security context if WITH_SELINUX.
 * lib/nscd.c: The service argument is not const (used in the exec*
   parameters). This matches with the prototype definition.
 * src/groupmems.c: Avoid ++i when i is also used in the same line.
 * src/newusers.c: i is positive every time it is compared. Add
   cast to unsigned int.
 * src/nologin.c: Use a main() prototype with no arguments.
 * libmisc/getdate.y: Initialize the type and value fields of the
   terminating entry for each TABLE.
 * libmisc/tz.c: Use "TZ=CST6CDT" as the default timezone.
2007-11-19 20:25:36 +00:00

66 lines
2.3 KiB
C

/*
* Copyright 1991 - 1994, Julianne Frances Haugh and Chip Rosenthal
* 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. Neither the name of Julianne F. Haugh 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 JULIE HAUGH 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 JULIE HAUGH 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 <config.h>
#ident "$Id$"
#include <stdio.h>
#include <string.h>
#include "defines.h"
#include "getdef.h"
/*
* tz - return local timezone name
*
* tz() determines the name of the local timezone by reading the
* contents of the file named by ``fname''.
*/
char *tz (const char *fname)
{
FILE *fp = 0;
static char tzbuf[BUFSIZ];
const char *def_tz = "TZ=CST6CDT";
if ((fp = fopen (fname, "r")) == NULL ||
fgets (tzbuf, sizeof (tzbuf), fp) == NULL) {
#ifndef USE_PAM
if (!(def_tz = getdef_str ("ENV_TZ")) || def_tz[0] == '/')
def_tz = "TZ=CST6CDT";
#endif /* !USE_PAM */
strcpy (tzbuf, def_tz);
} else
tzbuf[strlen (tzbuf) - 1] = '\0';
if (fp)
(void) fclose (fp);
return tzbuf;
}