Imported Upstream version 4.1.5.1

2013-07-27 18:42:08 +02:00
parent 6d11fd0a58
commit db1dc7288b
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+/*
+ * 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: tz.c 3231 2010-08-22 13:04:54Z nekral-guest $"
+
+#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 */
+