120 lines
3.1 KiB
C
120 lines
3.1 KiB
C
/* $NetBSD: util.c,v 1.11 2003/08/07 11:13:19 agc Exp $ */
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/*-
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* Copyright (c) 1988, 1993, 1994
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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#ifndef lint
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#if 0
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static char sccsid[] = "@(#)util.c 8.4 (Berkeley) 4/2/94";
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#else
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__RCSID("$NetBSD: util.c,v 1.11 2003/08/07 11:13:19 agc Exp $");
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#endif
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#endif /* not lint */
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#include <sys/types.h>
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#include <ctype.h>
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#include <pwd.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <time.h>
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#include <tzfile.h>
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#include <unistd.h>
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#include "chpass.h"
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#include "pathnames.h"
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char *
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ttoa(buf, len, tval)
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char *buf;
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size_t len;
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time_t tval;
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{
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if (tval) {
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struct tm *tp = localtime(&tval);
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(void) strftime(buf, len, "%B %d, %Y", tp);
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buf[len - 1] = '\0';
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}
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else if (len > 0)
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*buf = '\0';
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return (buf);
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}
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int
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atot(p, store)
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const char *p;
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time_t *store;
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{
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static struct tm *lt;
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struct tm tm;
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char *t;
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time_t tval;
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if (!*p) {
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*store = 0;
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return (0);
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}
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if (!lt) {
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unsetenv("TZ");
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(void)time(&tval);
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lt = localtime(&tval);
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}
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(void) memset(&tm, 0, sizeof(tm));
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while ((t = strchr(p, ',')) != NULL)
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*t = ' ';
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t = strptime(p, "%B %d %Y", &tm);
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if (t == NULL || (*t != '\0' && *t != '\n'))
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return 1;
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if ((*store = mktime(&tm)) == (time_t) -1)
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return 1;
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return (0);
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}
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const char *
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ok_shell(name)
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const char *name;
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{
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char *p;
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const char *sh;
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setusershell();
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while ((sh = getusershell()) != NULL) {
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if (!strcmp(name, sh))
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return (name);
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/* allow just shell name, but use "real" path */
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if ((p = strrchr(sh, '/')) && strcmp(name, p + 1) == 0)
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return (sh);
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}
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return (NULL);
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}
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