time_t
posixtime (const char *s, unsigned int syntax_bits)
{
t.tm_isdst = -1;
if (posix_time_parse (s, syntax_bits))
return (time_t)-1;
else
return mktime (&t);
}
bool
posixtime (time_t *p, const char *s, unsigned int syntax_bits)
{
struct tm tm0;
struct tm tm1;
struct tm const *tm;
time_t t;
if (posix_time_parse (&tm0, s, syntax_bits))
return false;
tm1 = tm0;
tm1.tm_isdst = -1;
t = mktime (&tm1);
if (t != (time_t) -1)
tm = &tm1;
else
{
/* mktime returns -1 for errors, but -1 is also a valid time_t
value. Check whether an error really occurred. */
tm = localtime (&t);
if (! tm)
return false;
}
/* Reject dates like "September 31" and times like "25:61".
Do not reject times that specify "60" as the number of seconds. */
if ((tm0.tm_year ^ tm->tm_year)
| (tm0.tm_mon ^ tm->tm_mon)
| (tm0.tm_mday ^ tm->tm_mday)
| (tm0.tm_hour ^ tm->tm_hour)
| (tm0.tm_min ^ tm->tm_min)
| (tm0.tm_sec ^ tm->tm_sec))
{
/* Any mismatch without 60 in the tm_sec field is invalid. */
if (tm0.tm_sec != 60)
return false;
{
/* Allow times like 01:35:60 or 23:59:60. */
time_t dummy;
char buf[16];
char *b = stpcpy (buf, s);
strcpy (b - 2, "59");
if (!posixtime (&dummy, buf, syntax_bits))
return false;
}
}
*p = t;
return true;
}
bool
posixtime (time_t *p, const char *s, unsigned int syntax_bits)
{
struct tm tm0;
struct tm tm1;
struct tm const *tm;
time_t t;
if (posix_time_parse (&tm0, s, syntax_bits))
return false;
tm1 = tm0;
tm1.tm_isdst = -1;
t = mktime (&tm1);
if (t != (time_t) -1)
tm = &tm1;
else
{
/* mktime returns -1 for errors, but -1 is also a valid time_t
value. Check whether an error really occurred. */
tm = localtime (&t);
if (! tm)
return false;
}
/* Reject dates like "September 31" and times like "25:61". */
if ((tm0.tm_year ^ tm->tm_year)
| (tm0.tm_mon ^ tm->tm_mon)
| (tm0.tm_mday ^ tm->tm_mday)
| (tm0.tm_hour ^ tm->tm_hour)
| (tm0.tm_min ^ tm->tm_min)
| (tm0.tm_sec ^ tm->tm_sec))
return false;
*p = t;
return true;
}
