146 lines
3.9 KiB
C
146 lines
3.9 KiB
C
/*-
|
|
* Copyright (c) 1988, 1993, 1994
|
|
* 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.
|
|
*/
|
|
|
|
#ifndef lint
|
|
static char sccsid[] = "@(#)util.c 8.4 (Berkeley) 4/2/94";
|
|
#endif /* not lint */
|
|
|
|
#include <sys/types.h>
|
|
|
|
#include <ctype.h>
|
|
#include <pwd.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <time.h>
|
|
#include <tzfile.h>
|
|
#include <unistd.h>
|
|
|
|
#include "chpass.h"
|
|
#include "pathnames.h"
|
|
|
|
static int dmsize[] =
|
|
{ -1, 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 };
|
|
static char *months[] =
|
|
{ "January", "February", "March", "April", "May", "June",
|
|
"July", "August", "September", "October", "November",
|
|
"December", NULL };
|
|
|
|
char *
|
|
ttoa(tval)
|
|
time_t tval;
|
|
{
|
|
struct tm *tp;
|
|
static char tbuf[50];
|
|
|
|
if (tval) {
|
|
tp = localtime(&tval);
|
|
(void)sprintf(tbuf, "%s %d, %d", months[tp->tm_mon],
|
|
tp->tm_mday, tp->tm_year + TM_YEAR_BASE);
|
|
}
|
|
else
|
|
*tbuf = '\0';
|
|
return (tbuf);
|
|
}
|
|
|
|
int
|
|
atot(p, store)
|
|
char *p;
|
|
time_t *store;
|
|
{
|
|
static struct tm *lt;
|
|
char *t, **mp;
|
|
time_t tval;
|
|
int day, month, year;
|
|
|
|
if (!*p) {
|
|
*store = 0;
|
|
return (0);
|
|
}
|
|
if (!lt) {
|
|
unsetenv("TZ");
|
|
(void)time(&tval);
|
|
lt = localtime(&tval);
|
|
}
|
|
if (!(t = strtok(p, " \t")))
|
|
goto bad;
|
|
for (mp = months;; ++mp) {
|
|
if (!*mp)
|
|
goto bad;
|
|
if (!strncasecmp(*mp, t, 3)) {
|
|
month = mp - months + 1;
|
|
break;
|
|
}
|
|
}
|
|
if (!(t = strtok((char *)NULL, " \t,")) || !isdigit(*t))
|
|
goto bad;
|
|
day = atoi(t);
|
|
if (!(t = strtok((char *)NULL, " \t,")) || !isdigit(*t))
|
|
goto bad;
|
|
year = atoi(t);
|
|
if (day < 1 || day > 31 || month < 1 || month > 12 || !year)
|
|
goto bad;
|
|
if (year < 100)
|
|
year += TM_YEAR_BASE;
|
|
if (year <= EPOCH_YEAR)
|
|
bad: return (1);
|
|
tval = isleap(year) && month > 2;
|
|
for (--year; year >= EPOCH_YEAR; --year)
|
|
tval += isleap(year) ?
|
|
DAYSPERLYEAR : DAYSPERNYEAR;
|
|
while (--month)
|
|
tval += dmsize[month];
|
|
tval += day;
|
|
tval = tval * HOURSPERDAY * MINSPERHOUR * SECSPERMIN;
|
|
tval -= lt->tm_gmtoff;
|
|
*store = tval;
|
|
return (0);
|
|
}
|
|
|
|
char *
|
|
ok_shell(name)
|
|
char *name;
|
|
{
|
|
char *p, *sh;
|
|
|
|
setusershell();
|
|
while (sh = getusershell()) {
|
|
if (!strcmp(name, sh))
|
|
return (name);
|
|
/* allow just shell name, but use "real" path */
|
|
if ((p = strrchr(sh, '/')) && strcmp(name, p + 1) == 0)
|
|
return (sh);
|
|
}
|
|
return (NULL);
|
|
}
|