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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 12:50:00 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 12:50:00 +0000 |
commit | 333f7ecfa3e040191c66b2b92f6c117ca2cbac1d (patch) | |
tree | 178a8f140927896970f47930dae9213161268f10 /libmisc/tz.c | |
parent | Initial commit. (diff) | |
download | shadow-upstream.tar.xz shadow-upstream.zip |
Adding upstream version 1:4.8.1.upstream/1%4.8.1upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | libmisc/tz.c | 80 |
1 files changed, 80 insertions, 0 deletions
diff --git a/libmisc/tz.c b/libmisc/tz.c new file mode 100644 index 0000000..bcf4f7f --- /dev/null +++ b/libmisc/tz.c @@ -0,0 +1,80 @@ +/* + * Copyright (c) 1991 - 1994, Julianne Frances Haugh + * Copyright (c) 1991 - 1994, Chip Rosenthal + * Copyright (c) 1996 - 1998, Marek Michałkiewicz + * Copyright (c) 2003 - 2005, Tomasz Kłoczko + * Copyright (c) 2007 - 2010, Nicolas François + * 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. The name of the copyright holders or contributors may not be used to + * endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 COPYRIGHT + * HOLDERS 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> + +#ifndef USE_PAM + +#ident "$Id$" + +#include <stdio.h> +#include <string.h> +#include "defines.h" +#include "prototypes.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''. + */ +/*@observer@*/const char *tz (const char *fname) +{ + FILE *fp = NULL; + static char tzbuf[BUFSIZ]; + const char *def_tz = "TZ=CST6CDT"; + + fp = fopen (fname, "r"); + if ( (NULL == fp) + || (fgets (tzbuf, (int) sizeof (tzbuf), fp) == NULL)) { + def_tz = getdef_str ("ENV_TZ"); + if ((NULL == def_tz) || ('/' == def_tz[0])) { + def_tz = "TZ=CST6CDT"; + } + + strcpy (tzbuf, def_tz); + } else { + tzbuf[strlen (tzbuf) - 1] = '\0'; + } + + if (NULL != fp) { + (void) fclose (fp); + } + + return tzbuf; +} +#else /* !USE_PAM */ +extern int errno; /* warning: ANSI C forbids an empty source file */ +#endif /* !USE_PAM */ + |