void
stime_arg2(char *arg, int year, struct timeval *tvp)
{
time_t now;
struct tm *t;
/* Start with the current time. */
now = tvp[0].tv_sec;
if ((t = localtime(&now)) == NULL)
err(1, "localtime");
t->tm_mon = ATOI2(arg); /* MMDDhhmm[yy] */
--t->tm_mon; /* Convert from 01-12 to 00-11 */
t->tm_mday = ATOI2(arg);
t->tm_hour = ATOI2(arg);
t->tm_min = ATOI2(arg);
if (year) {
t->tm_year = ATOI2(arg);
if (t->tm_year < 39) /* support 2000-2038 not 1902-1969 */
t->tm_year += 100;
}
t->tm_isdst = -1; /* Figure out DST. */
tvp[0].tv_sec = tvp[1].tv_sec = mktime(t);
if (tvp[0].tv_sec == -1)
errx(1,
"out of range or illegal time specification: MMDDhhmm[yy]");
tvp[0].tv_usec = tvp[1].tv_usec = 0;
}
/* Calculate a time offset in seconds, given an arg of the format [-]HHMMSS. */
int
timeoffset(char *arg)
{
int offset;
int isneg;
offset = 0;
isneg = *arg == '-';
if (isneg)
arg++;
switch (strlen(arg)) {
default: /* invalid */
errx(1, "Invalid offset spec, must be [-][[HH]MM]SS");
case 6: /* HHMMSS */
offset = ATOI2(arg);
/* FALLTHROUGH */
case 4: /* MMSS */
offset = offset * 60 + ATOI2(arg);
/* FALLTHROUGH */
case 2: /* SS */
offset = offset * 60 + ATOI2(arg);
}
if (isneg)
return (-offset);
else
return (offset);
}
static void
stime_arg2(char *arg, int year, struct timeval *tvp)
{
struct tm *t;
time_t tmptime;
/* Start with the current time. */
tmptime = tvp[0].tv_sec;
if ((t = localtime(&tmptime)) == NULL)
err(EXIT_FAILURE, "localtime");
t->tm_mon = ATOI2(arg); /* MMDDhhmm[yy] */
--t->tm_mon; /* Convert from 01-12 to 00-11 */
t->tm_mday = ATOI2(arg);
t->tm_hour = ATOI2(arg);
t->tm_min = ATOI2(arg);
if (year) {
year = ATOI2(arg);
if (year < 69)
t->tm_year = year + 2000 - TM_YEAR_BASE;
else
t->tm_year = year + 1900 - TM_YEAR_BASE;
}
t->tm_sec = 0;
t->tm_isdst = -1; /* Figure out DST. */
tvp[0].tv_sec = tvp[1].tv_sec = mktime(t);
if (tvp[0].tv_sec == -1)
errx(EXIT_FAILURE,
"out of range or illegal time specification: MMDDhhmm[yy]");
tvp[0].tv_usec = tvp[1].tv_usec = 0;
}
void
stime_arg1(char *arg, struct timeval *tvp)
{
time_t now;
struct tm *t;
int yearset;
char *p;
/* Start with the current time. */
now = tvp[0].tv_sec;
if ((t = localtime(&now)) == NULL)
err(1, "localtime");
/* [[CC]YY]MMDDhhmm[.SS] */
if ((p = strchr(arg, '.')) == NULL)
t->tm_sec = 0; /* Seconds defaults to 0. */
else {
if (strlen(p + 1) != 2)
goto terr;
*p++ = '\0';
t->tm_sec = ATOI2(p);
}
yearset = 0;
switch(strlen(arg)) {
case 12: /* CCYYMMDDhhmm */
t->tm_year = ATOI2(arg);
t->tm_year *= 100;
yearset = 1;
/* FALLTHROUGH */
case 10: /* YYMMDDhhmm */
if (yearset) {
yearset = ATOI2(arg);
t->tm_year += yearset;
} else {
yearset = ATOI2(arg);
if (yearset < 69)
t->tm_year = yearset + 2000;
else
t->tm_year = yearset + 1900;
}
t->tm_year -= 1900; /* Convert to UNIX time. */
/* FALLTHROUGH */
case 8: /* MMDDhhmm */
t->tm_mon = ATOI2(arg);
--t->tm_mon; /* Convert from 01-12 to 00-11 */
t->tm_mday = ATOI2(arg);
t->tm_hour = ATOI2(arg);
t->tm_min = ATOI2(arg);
break;
default:
goto terr;
}
t->tm_isdst = -1; /* Figure out DST. */
tvp[0].tv_sec = tvp[1].tv_sec = mktime(t);
if (tvp[0].tv_sec == -1)
terr: errx(1,
"out of range or illegal time specification: [[CC]YY]MMDDhhmm[.SS]");
tvp[0].tv_usec = tvp[1].tv_usec = 0;
}
static void
getmmdd(struct tm *ptm, char *ds)
{
bool ok = false;
struct tm ttm;
ttm = *ptm;
ttm.tm_isdst = -1;
if (ISDIG2(ds)) {
ttm.tm_mon = ATOI2(ds) - 1;
ds += 2;
}
if (ISDIG2(ds)) {
ttm.tm_mday = ATOI2(ds);
ds += 2;
ok = true;
}
if (ok) {
if (ISDIG2(ds) && ISDIG2(ds + 2)) {
ttm.tm_year = ATOI2(ds) * 100 - TM_YEAR_BASE;
ds += 2;
ttm.tm_year += ATOI2(ds);
} else if (ISDIG2(ds)) {
ttm.tm_year = ATOI2(ds);
if (ttm.tm_year < 69)
ttm.tm_year += 2000 - TM_YEAR_BASE;
else
ttm.tm_year += 1900 - TM_YEAR_BASE;
}
}
if (ok && mktime(&ttm) == -1)
ok = false;
if (ok)
*ptm = ttm;
else {
warnx("Can't convert `%s' to date, ignored.", ds);
usage();
}
}
void
stime_arg2(char *arg, int year, struct timespec *tsp)
{
struct tm *lt;
time_t tmptime;
/* Start with the current time. */
tmptime = time(NULL);
if ((lt = localtime(&tmptime)) == NULL)
err(1, "localtime");
lt->tm_mon = ATOI2(arg); /* MMDDhhmm[YY] */
if (lt->tm_mon > 12 || lt->tm_mon == 0)
goto terr;
--lt->tm_mon; /* Convert from 01-12 to 00-11 */
lt->tm_mday = ATOI2(arg);
if (lt->tm_mday > 31 || lt->tm_mday == 0)
goto terr;
lt->tm_hour = ATOI2(arg);
if (lt->tm_hour > 23)
goto terr;
lt->tm_min = ATOI2(arg);
if (lt->tm_min > 59)
goto terr;
if (year) {
year = ATOI2(arg);
/* POSIX logic: [00,68]=>20xx, [69,99]=>19xx */
lt->tm_year = year;
if (year < 69)
lt->tm_year += 100;
}
lt->tm_sec = 0;
lt->tm_isdst = -1; /* Figure out DST. */
tsp[0].tv_sec = tsp[1].tv_sec = mktime(lt);
if (tsp[0].tv_sec == -1)
terr: errx(1,
"out of range or illegal time specification: MMDDhhmm[YY]");
tsp[0].tv_nsec = tsp[1].tv_nsec = 0;
}
static time_t
parsetime(char *p)
{
struct tm *lt;
int bigyear;
int yearset = 0;
time_t tval;
char *t;
for (t = p; *t; ++t) {
if (isdigit((unsigned char) *t))
continue;
badformat();
}
tval = time(NULL);
lt = localtime(&tval);
lt->tm_sec = 0;
lt->tm_min = 0;
switch (strlen(p)) {
case 10: /* yyyy */
bigyear = ATOI2(p);
lt->tm_year = bigyear * 100 - 1900;
yearset = 1;
/* FALLTHROUGH */
case 8: /* yy */
if (yearset) {
lt->tm_year += ATOI2(p);
} else {
lt->tm_year = ATOI2(p);
if (lt->tm_year < 69) /* hack for 2000 */
lt->tm_year += 100;
}
/* FALLTHROUGH */
case 6: /* mm */
lt->tm_mon = ATOI2(p);
if ((lt->tm_mon > 12) || !lt->tm_mon)
badformat();
--lt->tm_mon; /* time struct is 0 - 11 */
/* FALLTHROUGH */
case 4: /* dd */
lt->tm_mday = ATOI2(p);
if ((lt->tm_mday > 31) || !lt->tm_mday)
badformat();
/* FALLTHROUGH */
case 2: /* HH */
lt->tm_hour = ATOI2(p);
if (lt->tm_hour > 23)
badformat();
break;
default:
badformat();
}
/* The calling code needs a valid tm_ydays and this is the easiest
* way to get one */
if ((tval = mktime(lt)) == -1)
errx(1, "specified date is outside allowed range");
return (tval);
}
static void
getoffset(char *timearg)
{
struct tm *lt;
char *p;
time_t now;
int this_year;
(void)time(&now);
if (!strcasecmp(timearg, "now")) { /* now */
offset = 0;
shuttime = now;
return;
}
if (*timearg == '+') { /* +minutes */
if (!isdigit(*++timearg))
badtime();
if ((offset = atoi(timearg) * 60) < 0)
badtime();
shuttime = now + offset;
return;
}
/* handle hh:mm by getting rid of the colon */
for (p = timearg; *p; ++p)
if (!isascii(*p) || !isdigit(*p)) {
if (*p == ':' && strlen(p) == 3) {
p[0] = p[1];
p[1] = p[2];
p[2] = '\0';
}
else
badtime();
}
unsetenv("TZ"); /* OUR timezone */
lt = localtime(&now); /* current time val */
switch(strlen(timearg)) {
case 10:
this_year = lt->tm_year;
lt->tm_year = ATOI2(timearg);
/*
* check if the specified year is in the next century.
* allow for one year of user error as many people will
* enter n - 1 at the start of year n.
*/
if (lt->tm_year < (this_year % 100) - 1)
lt->tm_year += 100;
/* adjust for the year 2000 and beyond */
lt->tm_year += (this_year - (this_year % 100));
/* FALLTHROUGH */
case 8:
lt->tm_mon = ATOI2(timearg);
if (--lt->tm_mon < 0 || lt->tm_mon > 11)
badtime();
/* FALLTHROUGH */
case 6:
lt->tm_mday = ATOI2(timearg);
if (lt->tm_mday < 1 || lt->tm_mday > 31)
badtime();
/* FALLTHROUGH */
case 4:
lt->tm_hour = ATOI2(timearg);
if (lt->tm_hour < 0 || lt->tm_hour > 23)
badtime();
lt->tm_min = ATOI2(timearg);
if (lt->tm_min < 0 || lt->tm_min > 59)
badtime();
lt->tm_sec = 0;
if ((shuttime = mktime(lt)) == -1)
badtime();
if ((offset = shuttime - now) < 0)
errx(1, "that time is already past.");
break;
default:
badtime();
}
}
static void
setthetime(const char *fmt, const char *p, int jflag, int nflag)
{
struct utmpx utx;
struct tm *lt;
struct timeval tv;
const char *dot, *t;
int century;
lt = localtime(&tval);
lt->tm_isdst = -1; /* divine correct DST */
if (fmt != NULL) {
t = strptime(p, fmt, lt);
if (t == NULL) {
fprintf(stderr, "Failed conversion of ``%s''"
" using format ``%s''\n", p, fmt);
badformat();
} else if (*t != '\0')
fprintf(stderr, "Warning: Ignoring %ld extraneous"
" characters in date string (%s)\n",
(long) strlen(t), t);
} else {
for (t = p, dot = NULL; *t; ++t) {
if (isdigit(*t))
continue;
if (*t == '.' && dot == NULL) {
dot = t;
continue;
}
badformat();
}
if (dot != NULL) { /* .ss */
dot++; /* *dot++ = '\0'; */
if (strlen(dot) != 2)
badformat();
lt->tm_sec = ATOI2(dot);
if (lt->tm_sec > 61)
badformat();
} else
lt->tm_sec = 0;
century = 0;
/* if p has a ".ss" field then let's pretend it's not there */
switch (strlen(p) - ((dot != NULL) ? 3 : 0)) {
case 12: /* cc */
lt->tm_year = ATOI2(p) * 100 - TM_YEAR_BASE;
century = 1;
/* FALLTHROUGH */
case 10: /* yy */
if (century)
lt->tm_year += ATOI2(p);
else {
lt->tm_year = ATOI2(p);
if (lt->tm_year < 69) /* hack for 2000 ;-} */
lt->tm_year += 2000 - TM_YEAR_BASE;
else
lt->tm_year += 1900 - TM_YEAR_BASE;
}
/* FALLTHROUGH */
case 8: /* mm */
lt->tm_mon = ATOI2(p);
if (lt->tm_mon > 12)
badformat();
--lt->tm_mon; /* time struct is 0 - 11 */
/* FALLTHROUGH */
case 6: /* dd */
lt->tm_mday = ATOI2(p);
if (lt->tm_mday > 31)
badformat();
/* FALLTHROUGH */
case 4: /* HH */
lt->tm_hour = ATOI2(p);
if (lt->tm_hour > 23)
badformat();
/* FALLTHROUGH */
case 2: /* MM */
lt->tm_min = ATOI2(p);
if (lt->tm_min > 59)
badformat();
break;
default:
badformat();
}
}
/* convert broken-down time to GMT clock time */
if ((tval = mktime(lt)) == -1)
errx(1, "nonexistent time");
if (!jflag) {
/* set the time */
if (nflag || netsettime(tval)) {
utx.ut_type = OLD_TIME;
gettimeofday(&utx.ut_tv, NULL);
pututxline(&utx);
tv.tv_sec = tval;
tv.tv_usec = 0;
if (settimeofday(&tv, (struct timezone *)NULL))
err(1, "settimeofday (timeval)");
utx.ut_type = NEW_TIME;
gettimeofday(&utx.ut_tv, NULL);
pututxline(&utx);
}
if ((p = getlogin()) == NULL)
p = "???";
syslog(LOG_AUTH | LOG_NOTICE, "date set by %s", p);
}
}
int
asn1_time_parse(const char *bytes, size_t len, struct tm *tm, int mode)
{
size_t i;
int type = 0;
struct tm ltm;
struct tm *lt;
const char *p;
if (bytes == NULL)
return (-1);
/* Constrain to valid lengths. */
if (len != UTCTIME_LENGTH && len != GENTIME_LENGTH)
return (-1);
lt = tm;
if (lt == NULL) {
memset(<m, 0, sizeof(ltm));
lt = <m;
}
/* Timezone is required and must be GMT (Zulu). */
if (bytes[len - 1] != 'Z')
return (-1);
/* Make sure everything else is digits. */
for (i = 0; i < len - 1; i++) {
if (isdigit((unsigned char)bytes[i]))
continue;
return (-1);
}
/*
* Validate and convert the time
*/
p = bytes;
switch (len) {
case GENTIME_LENGTH:
if (mode == V_ASN1_UTCTIME)
return (-1);
lt->tm_year = (ATOI2(p) * 100) - 1900; /* cc */
type = V_ASN1_GENERALIZEDTIME;
/* FALLTHROUGH */
case UTCTIME_LENGTH:
if (type == 0) {
if (mode == V_ASN1_GENERALIZEDTIME)
return (-1);
type = V_ASN1_UTCTIME;
}
lt->tm_year += ATOI2(p); /* yy */
if (type == V_ASN1_UTCTIME) {
if (lt->tm_year < 50)
lt->tm_year += 100;
}
lt->tm_mon = ATOI2(p) - 1; /* mm */
if (lt->tm_mon < 0 || lt->tm_mon > 11)
return (-1);
lt->tm_mday = ATOI2(p); /* dd */
if (lt->tm_mday < 1 || lt->tm_mday > 31)
return (-1);
lt->tm_hour = ATOI2(p); /* HH */
if (lt->tm_hour < 0 || lt->tm_hour > 23)
return (-1);
lt->tm_min = ATOI2(p); /* MM */
if (lt->tm_min < 0 || lt->tm_min > 59)
return (-1);
lt->tm_sec = ATOI2(p); /* SS */
/* Leap second 60 is not accepted. Reconsider later? */
if (lt->tm_sec < 0 || lt->tm_sec > 59)
return (-1);
break;
default:
return (-1);
}
return (type);
}
static void
setthetime(const char *p)
{
struct timeval tv;
time_t new_time;
struct tm *lt;
const char *dot, *t;
size_t len;
int yearset;
for (t = p, dot = NULL; *t; ++t) {
if (isdigit((unsigned char)*t))
continue;
if (*t == '.' && dot == NULL) {
dot = t;
continue;
}
badformat();
}
lt = localtime(&tval);
lt->tm_isdst = -1; /* Divine correct DST */
if (dot != NULL) { /* .ss */
len = strlen(dot);
if (len != 3)
badformat();
++dot;
lt->tm_sec = ATOI2(dot);
if (lt->tm_sec > 61)
badvalue("seconds");
} else {
len = 0;
lt->tm_sec = 0;
}
yearset = 0;
switch (strlen(p) - len) {
case 12: /* cc */
lt->tm_year = ATOI2(p) * 100 - TM_YEAR_BASE;
if (lt->tm_year < 0)
badtime();
yearset = 1;
/* FALLTHROUGH */
case 10: /* yy */
if (yearset) {
lt->tm_year += ATOI2(p);
} else {
yearset = ATOI2(p);
if (yearset < 69)
lt->tm_year = yearset + 2000 - TM_YEAR_BASE;
else
lt->tm_year = yearset + 1900 - TM_YEAR_BASE;
}
/* FALLTHROUGH */
case 8: /* mm */
lt->tm_mon = ATOI2(p);
if (lt->tm_mon > 12 || lt->tm_mon == 0)
badvalue("month");
--lt->tm_mon; /* time struct is 0 - 11 */
/* FALLTHROUGH */
case 6: /* dd */
lt->tm_mday = ATOI2(p);
switch (lt->tm_mon) {
case 0:
case 2:
case 4:
case 6:
case 7:
case 9:
case 11:
if (lt->tm_mday > 31 || lt->tm_mday == 0)
badvalue("day of month");
break;
case 3:
case 5:
case 8:
case 10:
if (lt->tm_mday > 30 || lt->tm_mday == 0)
badvalue("day of month");
break;
case 1:
if (lt->tm_mday > 29 || lt->tm_mday == 0 ||
(lt->tm_mday == 29 &&
!isleap(lt->tm_year + TM_YEAR_BASE)))
badvalue("day of month");
break;
default:
badvalue("month");
break;
}
/* FALLTHROUGH */
case 4: /* hh */
lt->tm_hour = ATOI2(p);
if (lt->tm_hour > 23)
badvalue("hour");
/* FALLTHROUGH */
case 2: /* mm */
lt->tm_min = ATOI2(p);
if (lt->tm_min > 59)
badvalue("minute");
break;
case 0: /* was just .sss */
if (len != 0)
break;
/* FALLTHROUGH */
default:
badformat();
}
/* convert broken-down time to UTC clock time */
if ((new_time = mktime(lt)) == -1)
badtime();
/* if jflag is set, don't actually change the time, just return */
if (jflag) {
tval = new_time;
return;
}
/* set the time */
if (nflag || netsettime(new_time)) {
logwtmp("|", "date", "");
if (aflag) {
tv.tv_sec = new_time - tval;
tv.tv_usec = 0;
if (adjtime(&tv, NULL))
err(EXIT_FAILURE, "adjtime");
} else {
tval = new_time;
tv.tv_sec = tval;
tv.tv_usec = 0;
if (settimeofday(&tv, NULL))
err(EXIT_FAILURE, "settimeofday");
}
logwtmp("{", "date", "");
}
if ((p = getlogin()) == NULL)
p = "???";
syslog(LOG_AUTH | LOG_NOTICE, "date set by %s", p);
}
static int
str_sec(const char *p, time_t *tval)
{
struct tm *lt;
const char *dot, *t;
int yearset, len;
for (t = p, dot = NULL; *t; ++t) {
if (isdigit((unsigned char)*t))
continue;
if (*t == '.' && dot == NULL) {
dot = t;
continue;
}
return -1;
}
lt = localtime(tval);
if (dot != NULL) {
len = strlen(dot);
if (len != 3)
return -1;
++dot;
lt->tm_sec = ATOI2(dot);
} else {
len = 0;
lt->tm_sec = 0;
}
yearset = 0;
switch (strlen(p) - len) {
case 12:
lt->tm_year = ATOI2(p) * 100 - TM_YEAR_BASE;
yearset = 1;
/* FALLTHROUGH */
case 10:
if (yearset) {
lt->tm_year += ATOI2(p);
} else {
yearset = ATOI2(p);
if (yearset < 69)
lt->tm_year = yearset + 2000 - TM_YEAR_BASE;
else
lt->tm_year = yearset + 1900 - TM_YEAR_BASE;
}
/* FALLTHROUGH */
case 8:
lt->tm_mon = ATOI2(p);
--lt->tm_mon;
/* FALLTHROUGH */
case 6:
lt->tm_mday = ATOI2(p);
/* FALLTHROUGH */
case 4:
lt->tm_hour = ATOI2(p);
/* FALLTHROUGH */
case 2:
lt->tm_min = ATOI2(p);
break;
default:
return -1;
}
/*
* convert broken-down time to GMT clock time seconds
*/
if ((*tval = mktime(lt)) == -1)
return -1;
return 0;
}
void
setthetime(char *p)
{
struct tm *lt;
struct timeval tv;
char *dot, *t;
const char *pc;
int bigyear;
int yearset = 0;
for (t = p, dot = NULL; *t; ++t) {
if (isdigit(*t))
continue;
if (*t == '.' && dot == NULL) {
dot = t;
continue;
}
badformat();
}
lt = localtime(&tval);
lt->tm_isdst = -1; /* correct for DST */
if (dot != NULL) { /* .SS */
*dot++ = '\0';
if (strlen(dot) != 2)
badformat();
lt->tm_sec = ATOI2(dot);
if (lt->tm_sec > 61)
badformat();
} else
lt->tm_sec = 0;
switch (strlen(p)) {
case 12: /* cc */
bigyear = ATOI2(p);
lt->tm_year = bigyear * 100 - TM_YEAR_BASE;
yearset = 1;
/* FALLTHROUGH */
case 10: /* yy */
if (yearset) {
lt->tm_year += ATOI2(p);
} else {
lt->tm_year = ATOI2(p);
if (lt->tm_year < 69) /* hack for 2000 ;-} */
lt->tm_year += (2000 - TM_YEAR_BASE);
else
lt->tm_year += (1900 - TM_YEAR_BASE);
}
/* FALLTHROUGH */
case 8: /* mm */
lt->tm_mon = ATOI2(p);
if ((lt->tm_mon > 12) || !lt->tm_mon)
badformat();
--lt->tm_mon; /* time struct is 0 - 11 */
/* FALLTHROUGH */
case 6: /* dd */
lt->tm_mday = ATOI2(p);
if ((lt->tm_mday > 31) || !lt->tm_mday)
badformat();
/* FALLTHROUGH */
case 4: /* HH */
lt->tm_hour = ATOI2(p);
if (lt->tm_hour > 23)
badformat();
/* FALLTHROUGH */
case 2: /* MM */
lt->tm_min = ATOI2(p);
if (lt->tm_min > 59)
badformat();
break;
default:
badformat();
}
/* convert broken-down time to UTC clock time */
if ((tval = mktime(lt)) < 0)
errx(1, "specified date is outside allowed range");
/* set the time */
if (slidetime) {
struct timeval tv_current;
if (gettimeofday(&tv_current, NULL) == -1)
err(1, "Could not get local time of day");
tv.tv_sec = tval - tv_current.tv_sec;
tv.tv_usec = 0;
if (adjtime(&tv, NULL) == -1)
errx(1, "adjtime");
} else {
tv.tv_sec = tval;
tv.tv_usec = 0;
if (settimeofday(&tv, NULL))
err(1, "settimeofday");
}
if ((pc = getlogin()) == NULL)
pc = "???";
syslog(LOG_AUTH | LOG_NOTICE, "date set by %s", pc);
}
void
stime_arg1(char *arg, struct timespec *tsp)
{
struct tm *lt;
time_t tmptime;
int yearset;
char *dot, *p;
/* Start with the current time. */
tmptime = time(NULL);
if ((lt = localtime(&tmptime)) == NULL)
err(1, "localtime");
/* [[CC]YY]MMDDhhmm[.SS] */
for (p = arg, dot = NULL; *p != '\0'; p++) {
if (*p == '.' && dot == NULL)
dot = p;
else if (!isdigit((unsigned char)*p))
goto terr;
}
if (dot == NULL)
lt->tm_sec = 0; /* Seconds defaults to 0. */
else {
*dot++ = '\0';
if (strlen(dot) != 2)
goto terr;
lt->tm_sec = ATOI2(dot);
if (lt->tm_sec > 61) /* Could be leap second. */
goto terr;
}
yearset = 0;
switch (strlen(arg)) {
case 12: /* CCYYMMDDhhmm */
lt->tm_year = (ATOI2(arg) * 100) - 1900;
yearset = 1;
/* FALLTHROUGH */
case 10: /* YYMMDDhhmm */
if (yearset) {
yearset = ATOI2(arg);
lt->tm_year += yearset;
} else {
yearset = ATOI2(arg);
/* POSIX logic: [00,68]=>20xx, [69,99]=>19xx */
lt->tm_year = yearset;
if (yearset < 69)
lt->tm_year += 100;
}
/* FALLTHROUGH */
case 8: /* MMDDhhmm */
lt->tm_mon = ATOI2(arg);
if (lt->tm_mon > 12 || lt->tm_mon == 0)
goto terr;
--lt->tm_mon; /* Convert from 01-12 to 00-11 */
lt->tm_mday = ATOI2(arg);
if (lt->tm_mday > 31 || lt->tm_mday == 0)
goto terr;
lt->tm_hour = ATOI2(arg);
if (lt->tm_hour > 23)
goto terr;
lt->tm_min = ATOI2(arg);
if (lt->tm_min > 59)
goto terr;
break;
default:
goto terr;
}
lt->tm_isdst = -1; /* Figure out DST. */
tsp[0].tv_sec = tsp[1].tv_sec = mktime(lt);
if (tsp[0].tv_sec == -1)
terr: errx(1,
"out of range or illegal time specification: [[CC]YY]MMDDhhmm[.SS]");
tsp[0].tv_nsec = tsp[1].tv_nsec = 0;
}
static void
stime_darg(const char *arg, struct timespec *tvp)
{
struct tm t = { .tm_sec = 0 };
const char *fmt, *colon;
char *p;
int val, isutc = 0;
tvp[0].tv_nsec = 0;
t.tm_isdst = -1;
colon = strchr(arg, ':');
if (colon == NULL || strchr(colon + 1, ':') == NULL)
goto bad;
fmt = strchr(arg, 'T') != NULL ? "%Y-%m-%dT%H:%M:%S" :
"%Y-%m-%d %H:%M:%S";
p = strptime(arg, fmt, &t);
if (p == NULL)
goto bad;
/* POSIX: must have at least one digit after dot */
if ((*p == '.' || *p == ',') && isdigit((unsigned char)p[1])) {
p++;
val = 100000000;
while (isdigit((unsigned char)*p)) {
tvp[0].tv_nsec += val * (*p - '0');
p++;
val /= 10;
}
}
if (*p == 'Z') {
isutc = 1;
p++;
}
if (*p != '\0')
goto bad;
tvp[0].tv_sec = isutc ? timegm(&t) : mktime(&t);
tvp[1] = tvp[0];
return;
bad:
errx(1, "out of range or illegal time specification: YYYY-MM-DDThh:mm:SS[.frac][tz]");
}
/* Calculate a time offset in seconds, given an arg of the format [-]HHMMSS. */
int
timeoffset(const char *arg)
{
int offset;
int isneg;
offset = 0;
isneg = *arg == '-';
if (isneg)
arg++;
switch (strlen(arg)) {
default: /* invalid */
errx(1, "Invalid offset spec, must be [-][[HH]MM]SS");
case 6: /* HHMMSS */
offset = ATOI2(arg);
/* FALLTHROUGH */
case 4: /* MMSS */
offset = offset * 60 + ATOI2(arg);
/* FALLTHROUGH */
case 2: /* SS */
offset = offset * 60 + ATOI2(arg);
}
if (isneg)
return (-offset);
else
return (offset);
}
void
setthetime(char *p)
{
struct tm *lt;
struct timeval tv;
char *dot, *t;
int yearset = 0;
for (t = p, dot = NULL; *t; ++t) {
if (isdigit((unsigned char)*t))
continue;
if (*t == '.' && dot == NULL) {
dot = t;
continue;
}
badformat();
}
lt = localtime(&tval);
lt->tm_isdst = -1; /* correct for DST */
if (dot != NULL) { /* .SS */
*dot++ = '\0';
if (strlen(dot) != 2)
badformat();
lt->tm_sec = ATOI2(dot);
if (lt->tm_sec > 61)
badformat();
} else
lt->tm_sec = 0;
switch (strlen(p)) {
case 12: /* cc */
lt->tm_year = ATOI2(p) * 100 - TM_YEAR_BASE;
yearset = 1;
/* FALLTHROUGH */
case 10: /* yy */
if (!yearset) {
/* mask out current year, leaving only century */
lt->tm_year = ((lt->tm_year / 100) * 100);
}
lt->tm_year += ATOI2(p);
/* FALLTHROUGH */
case 8: /* mm */
lt->tm_mon = ATOI2(p);
if ((lt->tm_mon > 12) || !lt->tm_mon)
badformat();
--lt->tm_mon; /* time struct is 0 - 11 */
/* FALLTHROUGH */
case 6: /* dd */
lt->tm_mday = ATOI2(p);
if ((lt->tm_mday > 31) || !lt->tm_mday)
badformat();
/* FALLTHROUGH */
case 4: /* HH */
lt->tm_hour = ATOI2(p);
if (lt->tm_hour > 23)
badformat();
/* FALLTHROUGH */
case 2: /* MM */
lt->tm_min = ATOI2(p);
if (lt->tm_min > 59)
badformat();
break;
default:
badformat();
}
/* convert broken-down time to UTC clock time */
if ((tval = mktime(lt)) < 0)
errx(1, "specified date is outside allowed range");
if (jflag)
return;
/* set the time */
if (slidetime) {
struct timeval tv_current;
if (gettimeofday(&tv_current, NULL) == -1)
err(1, "Could not get local time of day");
tv.tv_sec = tval - tv_current.tv_sec;
tv.tv_usec = 0;
if (adjtime(&tv, NULL) == -1)
errx(1, "adjtime");
} else {
#ifndef SMALL
logwtmp("|", "date", "");
#endif
tv.tv_sec = tval;
tv.tv_usec = 0;
if (settimeofday(&tv, NULL))
err(1, "settimeofday");
#ifndef SMALL
logwtmp("{", "date", "");
#endif
}
if ((p = getlogin()) == NULL)
p = "???";
syslog(LOG_AUTH | LOG_NOTICE, "date set by %s", p);
}
static int
str_sec(char *str, time_t *tval)
{
struct tm *lt;
char *dot = NULL;
lt = localtime(tval);
if ((dot = strchr(str, '.')) != NULL) {
/*
* seconds (.ss)
*/
*dot++ = '\0';
if (strlen(dot) != 2)
return(-1);
if ((lt->tm_sec = ATOI2(dot)) > 61)
return(-1);
} else
lt->tm_sec = 0;
switch (strlen(str)) {
case 10:
/*
* year (yy)
* watch out for year 2000
*/
if ((lt->tm_year = ATOI2(str)) < 69)
lt->tm_year += 100;
str += 2;
/* FALLTHROUGH */
case 8:
/*
* month (mm)
* watch out months are from 0 - 11 internally
*/
if ((lt->tm_mon = ATOI2(str)) > 12)
return(-1);
--lt->tm_mon;
str += 2;
/* FALLTHROUGH */
case 6:
/*
* day (dd)
*/
if ((lt->tm_mday = ATOI2(str)) > 31)
return(-1);
str += 2;
/* FALLTHROUGH */
case 4:
/*
* hour (hh)
*/
if ((lt->tm_hour = ATOI2(str)) > 23)
return(-1);
str += 2;
/* FALLTHROUGH */
case 2:
/*
* minute (mm)
*/
if ((lt->tm_min = ATOI2(str)) > 59)
return(-1);
break;
default:
return(-1);
}
/*
* convert broken-down time to GMT clock time seconds
*/
if ((*tval = mktime(lt)) == -1)
return(-1);
return(0);
}
static int
str_sec(const char *p, time_t *tval)
{
struct tm *lt;
const char *dot, *t;
size_t len;
int bigyear;
int yearset;
yearset = 0;
len = strlen(p);
for (t = p, dot = NULL; *t; ++t) {
if (isdigit(*t))
continue;
if (*t == '.' && dot == NULL) {
dot = t;
continue;
}
return(-1);
}
lt = localtime(tval);
if (dot != NULL) { /* .SS */
if (strlen(++dot) != 2)
return(-1);
lt->tm_sec = ATOI2(dot);
if (lt->tm_sec > 61)
return(-1);
len -= 3;
} else
lt->tm_sec = 0;
switch (len) {
case 12: /* cc */
bigyear = ATOI2(p);
lt->tm_year = (bigyear * 100) - TM_YEAR_BASE;
yearset = 1;
/* FALLTHROUGH */
case 10: /* yy */
if (yearset) {
lt->tm_year += ATOI2(p);
} else {
lt->tm_year = ATOI2(p);
if (lt->tm_year < 69) /* hack for 2000 ;-} */
lt->tm_year += (2000 - TM_YEAR_BASE);
else
lt->tm_year += (1900 - TM_YEAR_BASE);
}
/* FALLTHROUGH */
case 8: /* mm */
lt->tm_mon = ATOI2(p);
if ((lt->tm_mon > 12) || !lt->tm_mon)
return(-1);
--lt->tm_mon; /* time struct is 0 - 11 */
/* FALLTHROUGH */
case 6: /* dd */
lt->tm_mday = ATOI2(p);
if ((lt->tm_mday > 31) || !lt->tm_mday)
return(-1);
/* FALLTHROUGH */
case 4: /* HH */
lt->tm_hour = ATOI2(p);
if (lt->tm_hour > 23)
return(-1);
/* FALLTHROUGH */
case 2: /* MM */
lt->tm_min = ATOI2(p);
if (lt->tm_min > 59)
return(-1);
break;
default:
return(-1);
}
/* convert broken-down time to UTC clock time seconds */
if ((*tval = mktime(lt)) == -1)
return(-1);
return(0);
}
