char *strptime(const char *buf, const char *fmt, struct tm *tm) {
char c;
const char *bp;
size_t len = 0;
int alt_format, i, split_year = 0;
bp = buf;
while ((c = *fmt) != '\0') {
/* Clear `alternate' modifier prior to new conversion. */
alt_format = 0;
/* Eat up white-space. */
if (isspace(c)) {
while (isspace(*bp)) ++bp;
++fmt;
continue;
}
if ((c = *fmt++) != '%')
goto literal;
again: switch (c = *fmt++) {
case '%': /* "%%" is converted to "%". */
literal :
if (c != *bp++) return 0;
break;
/*
* "Alternative" modifiers. Just set the appropriate flag
* and start over again.
*/
case 'E': /* "%E?" alternative conversion modifier. */
LEGAL_ALT(0);
alt_format |= ALT_E;
goto again;
case 'O': /* "%O?" alternative conversion modifier. */
LEGAL_ALT(0);
alt_format |= ALT_O;
goto again;
/*
* "Complex" conversion rules, implemented through recursion.
*/
case 'c': /* Date and time, using the locale's format. */
LEGAL_ALT(ALT_E);
if (!(bp = strptime(bp, "%x %X", tm))) return 0;
break;
case 'D': /* The date as "%m/%d/%y". */
LEGAL_ALT(0);
if (!(bp = strptime(bp, "%m/%d/%y", tm))) return 0;
break;
case 'R': /* The time as "%H:%M". */
LEGAL_ALT(0);
if (!(bp = strptime(bp, "%H:%M", tm))) return 0;
break;
case 'r': /* The time in 12-hour clock representation. */
LEGAL_ALT(0);
if (!(bp = strptime(bp, "%I:%M:%S %p", tm))) return 0;
break;
case 'T': /* The time as "%H:%M:%S". */
LEGAL_ALT(0);
if (!(bp = strptime(bp, "%H:%M:%S", tm))) return 0;
break;
case 'X': /* The time, using the locale's format. */
LEGAL_ALT(ALT_E);
if (!(bp = strptime(bp, "%H:%M:%S", tm))) return 0;
break;
case 'x': /* The date, using the locale's format. */
LEGAL_ALT(ALT_E);
if (!(bp = strptime(bp, "%m/%d/%y", tm))) return 0;
break;
/*
* "Elementary" conversion rules.
*/
case 'A': /* The day of week, using the locale's form. */
case 'a':
LEGAL_ALT(0);
for (i = 0; i < 7; ++i) {
/* Full name. */
len = strlen(g_strings_day[i]);
if (strncasecmp(g_strings_day[i], bp, len) == 0)
break;
/* Abbreviated name. */
len = strlen(g_strings_abday[i]);
if (strncasecmp(g_strings_abday[i], bp, len) == 0)
break;
}
/* Nothing matched. */
if (i == 7) return 0;
tm->tm_wday = i;
bp += len;
break;
case 'B': /* The month, using the locale's form. */
case 'b':
case 'h':
LEGAL_ALT(0);
for (i = 0; i < 12; ++i) {
/* Full name. */
len = strlen(g_strings_mon[i]);
if (strncasecmp(g_strings_mon[i], bp, len) == 0)
break;
/* Abbreviated name. */
len = strlen(g_strings_abmon[i]);
if (strncasecmp(g_strings_abmon[i], bp, len) == 0)
break;
}
/* Nothing matched. */
if (i == 12) return 0;
tm->tm_mon = i;
bp += len;
break;
case 'C': /* The century number. */
LEGAL_ALT(ALT_E);
if (!(_strings_conv_num(&bp, &i, 0, 99))) return 0;
if (split_year) {
tm->tm_year = (tm->tm_year % 100) + (i * 100);
} else {
tm->tm_year = i * 100;
split_year = 1;
}
break;
case 'd': /* The day of month. */
case 'e':
LEGAL_ALT(ALT_O);
if (!(_strings_conv_num(&bp, &tm->tm_mday, 1, 31))) return 0;
break;
case 'k': /* The hour (24-hour clock representation). */
LEGAL_ALT(0);
/* FALLTHROUGH */
case 'H':
LEGAL_ALT(ALT_O);
if (!(_strings_conv_num(&bp, &tm->tm_hour, 0, 23))) return 0;
break;
case 'l': /* The hour (12-hour clock representation). */
LEGAL_ALT(0);
/* FALLTHROUGH */
case 'I':
LEGAL_ALT(ALT_O);
if (!(_strings_conv_num(&bp, &tm->tm_hour, 1, 12))) return 0;
if (tm->tm_hour == 12)
tm->tm_hour = 0;
break;
case 'j': /* The day of year. */
LEGAL_ALT(0);
if (!(_strings_conv_num(&bp, &i, 1, 366))) return 0;
tm->tm_yday = i - 1;
break;
case 'M': /* The minute. */
LEGAL_ALT(ALT_O);
if (!(_strings_conv_num(&bp, &tm->tm_min, 0, 59))) return 0;
break;
case 'm': /* The month. */
LEGAL_ALT(ALT_O);
if (!(_strings_conv_num(&bp, &i, 1, 12))) return 0;
tm->tm_mon = i - 1;
break;
case 'p': /* The locale's equivalent of AM/PM. */
LEGAL_ALT(0);
/* AM? */
if (strcasecmp(g_strings_am_pm[0], bp) == 0) {
if (tm->tm_hour > 11) return 0;
bp += strlen(g_strings_am_pm[0]);
break;
}
/* PM? */
else if (strcasecmp(g_strings_am_pm[1], bp) == 0) {
if (tm->tm_hour > 11) return 0;
tm->tm_hour += 12;
bp += strlen(g_strings_am_pm[1]);
break;
}
/* Nothing matched. */
return 0;
case 'S': /* The seconds. */
LEGAL_ALT(ALT_O);
if (!(_strings_conv_num(&bp, &tm->tm_sec, 0, 61))) return 0;
break;
case 'U': /* The week of year, beginning on sunday. */
case 'W': /* The week of year, beginning on monday. */
LEGAL_ALT(ALT_O);
/*
* XXX This is bogus, as we can not assume any valid
* information present in the tm structure at this
* point to calculate a real value, so just check the
* range for now.
*/
if (!(_strings_conv_num(&bp, &i, 0, 53))) return 0;
break;
case 'w': /* The day of week, beginning on sunday. */
LEGAL_ALT(ALT_O);
if (!(_strings_conv_num(&bp, &tm->tm_wday, 0, 6))) return 0;
break;
case 'Y': /* The year. */
LEGAL_ALT(ALT_E);
if (!(_strings_conv_num(&bp, &i, 0, 9999))) return 0;
tm->tm_year = i - TM_YEAR_BASE;
break;
case 'y': /* The year within 100 years of the epoch. */
LEGAL_ALT(ALT_E | ALT_O);
if (!(_strings_conv_num(&bp, &i, 0, 99))) return 0;
if (split_year) {
tm->tm_year = ((tm->tm_year / 100) * 100) + i;
break;
}
split_year = 1;
if (i <= 68)
tm->tm_year = i + 2000 - TM_YEAR_BASE;
else
tm->tm_year = i + 1900 - TM_YEAR_BASE;
break;
/*
* Miscellaneous conversions.
*/
case 'n': /* Any kind of white-space. */
case 't':
LEGAL_ALT(0);
while (isspace(*bp)) ++bp;
break;
default: /* Unknown/unsupported conversion. */
return 0;
}
}
return ((char *)bp);
}
char *
strptime(const char *buf, const char *fmt, struct tm *tm)
{
unsigned char c;
const unsigned char *bp, *ep;
int alt_format, i, split_year = 0, neg = 0, offs;
const char *new_fmt;
bp = (const unsigned char *)buf;
while (bp != NULL && (c = *fmt++) != '\0')
{
/* Clear `alternate' modifier prior to new conversion. */
alt_format = 0;
i = 0;
/* Eat up white-space. */
if (isspace(c))
{
while (isspace(*bp))
bp++;
continue;
}
if (c != '%')
goto literal;
again:
switch (c = *fmt++)
{
case '%': /* "%%" is converted to "%". */
literal:
if (c != *bp++)
return NULL;
LEGAL_ALT(0);
continue;
/*
* "Alternative" modifiers. Just set the appropriate flag
* and start over again.
*/
case 'E': /* "%E?" alternative conversion modifier. */
LEGAL_ALT(0);
alt_format |= ALT_E;
goto again;
case 'O': /* "%O?" alternative conversion modifier. */
LEGAL_ALT(0);
alt_format |= ALT_O;
goto again;
/*
* "Complex" conversion rules, implemented through recursion.
*/
/* case 'c': /\* Date and time, using the locale's format. *\/ */
/* new_fmt = _TIME_LOCALE(loc)->d_t_fmt; */
/* goto recurse; */
case 'D': /* The date as "%m/%d/%y". */
new_fmt = "%m/%d/%y";
LEGAL_ALT(0);
goto recurse;
case 'F': /* The date as "%Y-%m-%d". */
new_fmt = "%Y-%m-%d";
LEGAL_ALT(0);
goto recurse;
case 'R': /* The time as "%H:%M". */
new_fmt = "%H:%M";
LEGAL_ALT(0);
goto recurse;
/* case 'r': /\* The time in 12-hour clock representation. *\/ */
/* new_fmt = _TIME_LOCALE(loc)->t_fmt_ampm; */
/* LEGAL_ALT(0); */
/* goto recurse; */
case 'T': /* The time as "%H:%M:%S". */
new_fmt = "%H:%M:%S";
LEGAL_ALT(0);
goto recurse;
/* case 'X': /\* The time, using the locale's format. *\/ */
/* new_fmt = _TIME_LOCALE(loc)->t_fmt; */
/* goto recurse; */
/* case 'x': /\* The date, using the locale's format. *\/ */
/* new_fmt = _TIME_LOCALE(loc)->d_fmt; */
recurse:
bp = (const unsigned char *)strptime((const char *)bp,
new_fmt, tm);
LEGAL_ALT(ALT_E);
continue;
/*
* "Elementary" conversion rules.
*/
case 'A': /* The day of week, using the locale's form. */
case 'a':
bp = find_string(bp, &tm->tm_wday, day, abday, 7);
LEGAL_ALT(0);
continue;
case 'B': /* The month, using the locale's form. */
case 'b':
case 'h':
bp = find_string(bp, &tm->tm_mon, mon, abmon, 12);
LEGAL_ALT(0);
continue;
case 'C': /* The century number. */
i = 20;
bp = conv_num(bp, &i, 0, 99);
i = i * 100 - TM_YEAR_BASE;
if (split_year)
i += tm->tm_year % 100;
split_year = 1;
tm->tm_year = i;
LEGAL_ALT(ALT_E);
continue;
case 'd': /* The day of month. */
case 'e':
bp = conv_num(bp, &tm->tm_mday, 1, 31);
LEGAL_ALT(ALT_O);
continue;
case 'k': /* The hour (24-hour clock representation). */
LEGAL_ALT(0);
/* FALLTHROUGH */
case 'H':
bp = conv_num(bp, &tm->tm_hour, 0, 23);
LEGAL_ALT(ALT_O);
continue;
case 'l': /* The hour (12-hour clock representation). */
LEGAL_ALT(0);
/* FALLTHROUGH */
case 'I':
bp = conv_num(bp, &tm->tm_hour, 1, 12);
if (tm->tm_hour == 12)
tm->tm_hour = 0;
LEGAL_ALT(ALT_O);
continue;
case 'j': /* The day of year. */
i = 1;
bp = conv_num(bp, &i, 1, 366);
tm->tm_yday = i - 1;
LEGAL_ALT(0);
continue;
case 'M': /* The minute. */
bp = conv_num(bp, &tm->tm_min, 0, 59);
LEGAL_ALT(ALT_O);
continue;
case 'm': /* The month. */
i = 1;
bp = conv_num(bp, &i, 1, 12);
tm->tm_mon = i - 1;
LEGAL_ALT(ALT_O);
continue;
case 'p': /* The locale's equivalent of AM/PM. */
bp = find_string(bp, &i, am_pm, NULL, 2);
if (tm->tm_hour > 11)
return NULL;
tm->tm_hour += i * 12;
LEGAL_ALT(0);
continue;
case 'S': /* The seconds. */
bp = conv_num(bp, &tm->tm_sec, 0, 61);
LEGAL_ALT(ALT_O);
continue;
#ifndef TIME_MAX
# define TIME_MAX INT64_MAX
#endif
case 's': /* seconds since the epoch */
{
time_t sse = 0;
__int64 rulim = TIME_MAX;
if (*bp < '0' || *bp > '9')
{
bp = NULL;
continue;
}
do
{
sse *= 10;
sse += *bp++ - '0';
rulim /= 10;
} while ((sse * 10 <= TIME_MAX) &&
rulim && *bp >= '0' && *bp <= '9');
if (sse < 0 || (__int64)sse > TIME_MAX)
{
bp = NULL;
continue;
}
if (localtime_r(&sse, tm) == NULL)
bp = NULL;
}
continue;
case 'U': /* The week of year, beginning on sunday. */
case 'W': /* The week of year, beginning on monday. */
/*
* XXX This is bogus, as we can not assume any valid
* information present in the tm structure at this
* point to calculate a real value, so just check the
* range for now.
*/
bp = conv_num(bp, &i, 0, 53);
LEGAL_ALT(ALT_O);
continue;
case 'w': /* The day of week, beginning on sunday. */
bp = conv_num(bp, &tm->tm_wday, 0, 6);
LEGAL_ALT(ALT_O);
continue;
case 'u': /* The day of week, monday = 1. */
bp = conv_num(bp, &i, 1, 7);
tm->tm_wday = i % 7;
LEGAL_ALT(ALT_O);
continue;
case 'g': /* The year corresponding to the ISO week
* number but without the century.
*/
bp = conv_num(bp, &i, 0, 99);
continue;
case 'G': /* The year corresponding to the ISO week
* number with century.
*/
do
bp++;
while (isdigit(*bp));
continue;
case 'V': /* The ISO 8601:1988 week number as decimal */
bp = conv_num(bp, &i, 0, 53);
continue;
case 'Y': /* The year. */
i = TM_YEAR_BASE; /* just for data sanity... */
bp = conv_num(bp, &i, 0, 9999);
tm->tm_year = i - TM_YEAR_BASE;
LEGAL_ALT(ALT_E);
continue;
case 'y': /* The year within 100 years of the epoch. */
/* LEGAL_ALT(ALT_E | ALT_O); */
bp = conv_num(bp, &i, 0, 99);
if (split_year)
/* preserve century */
i += (tm->tm_year / 100) * 100;
else {
split_year = 1;
if (i <= 68)
i = i + 2000 - TM_YEAR_BASE;
else
i = i + 1900 - TM_YEAR_BASE;
}
tm->tm_year = i;
continue;
case 'Z':
tzset();
if (strncmp((const char *)bp, gmt, 3) == 0) {
tm->tm_isdst = 0;
#ifdef TM_GMTOFF
tm->TM_GMTOFF = 0;
#endif
#ifdef TM_ZONE
tm->TM_ZONE = gmt;
#endif
bp += 3;
}
else
{
ep = find_string(bp, &i,
(const char * const *)tzname,
NULL, 2);
if (ep != NULL)
{
tm->tm_isdst = i;
#ifdef TM_GMTOFF
tm->TM_GMTOFF = -(timezone);
#endif
#ifdef TM_ZONE
tm->TM_ZONE = tzname[i];
#endif
}
bp = ep;
}
continue;
case 'z':
/*
* We recognize all ISO 8601 formats:
* Z = Zulu time/UTC
* [+-]hhmm
* [+-]hh:mm
* [+-]hh
* We recognize all RFC-822/RFC-2822 formats:
* UT|GMT
* North American : UTC offsets
* E[DS]T = Eastern : -4 | -5
* C[DS]T = Central : -5 | -6
* M[DS]T = Mountain: -6 | -7
* P[DS]T = Pacific : -7 | -8
* Military
* [A-IL-M] = -1 ... -9 (J not used)
* [N-Y] = +1 ... +12
*/
while (isspace(*bp))
bp++;
switch (*bp++)
{
case 'G':
if (*bp++ != 'M')
return NULL;
/*FALLTHROUGH*/
case 'U':
if (*bp++ != 'T')
return NULL;
/*FALLTHROUGH*/
case 'Z':
tm->tm_isdst = 0;
#ifdef TM_GMTOFF
tm->TM_GMTOFF = 0;
#endif
#ifdef TM_ZONE
tm->TM_ZONE = utc;
#endif
continue;
case '+':
neg = 0;
break;
case '-':
neg = 1;
break;
default:
--bp;
ep = find_string(bp, &i, nast, NULL, 4);
if (ep != NULL) {
#ifdef TM_GMTOFF
tm->TM_GMTOFF = -5 - i;
#endif
#ifdef TM_ZONE
tm->TM_ZONE = __UNCONST(nast[i]);
#endif
bp = ep;
continue;
}
ep = find_string(bp, &i, nadt, NULL, 4);
if (ep != NULL)
{
tm->tm_isdst = 1;
#ifdef TM_GMTOFF
tm->TM_GMTOFF = -4 - i;
#endif
#ifdef TM_ZONE
tm->TM_ZONE = __UNCONST(nadt[i]);
#endif
bp = ep;
continue;
}
if ((*bp >= 'A' && *bp <= 'I') ||
(*bp >= 'L' && *bp <= 'Y'))
{
#ifdef TM_GMTOFF
/* Argh! No 'J'! */
if (*bp >= 'A' && *bp <= 'I')
tm->TM_GMTOFF =
('A' - 1) - (int)*bp;
else if (*bp >= 'L' && *bp <= 'M')
tm->TM_GMTOFF = 'A' - (int)*bp;
else if (*bp >= 'N' && *bp <= 'Y')
tm->TM_GMTOFF = (int)*bp - 'M';
#endif
#ifdef TM_ZONE
tm->TM_ZONE = NULL; /* XXX */
#endif
bp++;
continue;
}
return NULL;
}
offs = 0;
for (i = 0; i < 4; )
{
if (isdigit(*bp))
{
offs = offs * 10 + (*bp++ - '0');
i++;
continue;
}
if (i == 2 && *bp == ':')
{
bp++;
continue;
}
break;
}
switch (i)
{
case 2:
offs *= 100;
break;
case 4:
i = offs % 100;
if (i >= 60)
return NULL;
/* Convert minutes into decimal */
offs = (offs / 100) * 100 + (i * 50) / 30;
break;
default:
return NULL;
}
if (neg)
offs = -offs;
tm->tm_isdst = 0; /* XXX */
#ifdef TM_GMTOFF
tm->TM_GMTOFF = offs;
#endif
#ifdef TM_ZONE
tm->TM_ZONE = NULL; /* XXX */
#endif
continue;
/*
* Miscellaneous conversions.
*/
case 'n': /* Any kind of white-space. */
case 't':
while (isspace(*bp))
bp++;
LEGAL_ALT(0);
continue;
default: /* Unknown/unsupported conversion. */
return NULL;
}
}
return (char *)bp;
}
NRTPRIV(char *) _NRT_strptime(const char *buf, const char *fmt, struct tm *tm,
double *millis)
{
char c;
const char *bp;
size_t len = 0;
int alt_format, i, split_year = 0;
bp = buf;
*millis = 0.0;
/* init */
tm->tm_sec = tm->tm_min = tm->tm_hour = tm->tm_mday = tm->tm_mon =
tm->tm_year = tm->tm_wday = tm->tm_yday = 0;
/* tm->tm_isdst = lt.tm_isdst; */
while ((c = *fmt) != '\0')
{
/* Clear `alternate' modifier prior to new conversion. */
alt_format = 0;
/* Eat up white-space. */
if (isspace(c))
{
while (isspace(*bp))
bp++;
fmt++;
continue;
}
if ((c = *fmt++) != '%')
goto literal;
again:switch (c = *fmt++)
{
case '%': /* "%%" is converted to "%". */
literal:
if (c != *bp++)
return NULL;
break;
/*
* "Alternative" modifiers. Just set the appropriate flag
* and start over again.
*/
case 'E': /* "%E?" alternative conversion modifier. */
LEGAL_ALT(0);
alt_format |= ALT_E;
goto again;
case 'O': /* "%O?" alternative conversion modifier. */
LEGAL_ALT(0);
alt_format |= ALT_O;
goto again;
/*
* "Complex" conversion rules, implemented through recursion.
*/
case 'c': /* Date and time, using the locale's format. */
LEGAL_ALT(ALT_E);
bp = _NRT_strptime(bp, "%x %X", tm, millis);
if (!bp)
return NULL;
break;
case 'D': /* The date as "%m/%d/%y". */
LEGAL_ALT(0);
bp = _NRT_strptime(bp, "%m/%d/%y", tm, millis);
if (!bp)
return NULL;
break;
case 'R': /* The time as "%H:%M". */
LEGAL_ALT(0);
bp = _NRT_strptime(bp, "%H:%M", tm, millis);
if (!bp)
return NULL;
break;
case 'r': /* The time in 12-hour clock representation. */
LEGAL_ALT(0);
bp = _NRT_strptime(bp, "%I:%M:%S %p", tm, millis);
if (!bp)
return NULL;
break;
case 'T': /* The time as "%H:%M:%S". */
LEGAL_ALT(0);
bp = _NRT_strptime(bp, "%H:%M:%S", tm, millis);
if (!bp)
return NULL;
break;
case 'X': /* The time, using the locale's format. */
LEGAL_ALT(ALT_E);
bp = _NRT_strptime(bp, "%H:%M:%S", tm, millis);
if (!bp)
return NULL;
break;
case 'x': /* The date, using the locale's format. */
LEGAL_ALT(ALT_E);
bp = _NRT_strptime(bp, "%m/%d/%y", tm, millis);
if (!bp)
return NULL;
break;
/*
* "Elementary" conversion rules.
*/
case 'A': /* The day of week, using the locale's form. */
case 'a':
LEGAL_ALT(0);
for (i = 0; i < 7; i++)
{
/* Full name. */
len = strlen(day[i]);
if (nrt_Utils_strncasecmp((char *) (day[i]), (char *) bp, len)
== 0)
break;
/* Abbreviated name. */
len = strlen(abday[i]);
if (nrt_Utils_strncasecmp((char *) (abday[i]), (char *) bp, len)
== 0)
break;
}
/* Nothing matched. */
if (i == 7)
return NULL;
tm->tm_wday = i;
bp += len;
break;
case 'B': /* The month, using the locale's form. */
case 'b':
case 'h':
LEGAL_ALT(0);
for (i = 0; i < 12; i++)
{
/* Full name. */
len = strlen(mon[i]);
if (nrt_Utils_strncasecmp((char *) (mon[i]), (char *) bp, len)
== 0)
break;
/* Abbreviated name. */
len = strlen(abmon[i]);
if (nrt_Utils_strncasecmp((char *) (abmon[i]), (char *) bp, len)
== 0)
break;
}
/* Nothing matched. */
if (i == 12)
return NULL;
tm->tm_mon = i;
bp += len;
break;
case 'C': /* The century number. */
LEGAL_ALT(ALT_E);
if (!(_NRT_convNum(&bp, &i, 0, 99)))
return NULL;
if (split_year)
{
tm->tm_year = (tm->tm_year % 100) + (i * 100);
}
else
{
tm->tm_year = i * 100;
split_year = 1;
}
break;
case 'd': /* The day of month. */
case 'e':
LEGAL_ALT(ALT_O);
if (!(_NRT_convNum(&bp, &tm->tm_mday, 1, 31)))
return NULL;
break;
case 'k': /* The hour (24-hour clock representation). */
LEGAL_ALT(0);
/* FALLTHROUGH */
case 'H':
LEGAL_ALT(ALT_O);
if (!(_NRT_convNum(&bp, &tm->tm_hour, 0, 23)))
return NULL;
break;
case 'l': /* The hour (12-hour clock representation). */
LEGAL_ALT(0);
/* FALLTHROUGH */
case 'I':
LEGAL_ALT(ALT_O);
if (!(_NRT_convNum(&bp, &tm->tm_hour, 1, 12)))
return NULL;
if (tm->tm_hour == 12)
tm->tm_hour = 0;
break;
case 'j': /* The day of year. */
LEGAL_ALT(0);
if (!(_NRT_convNum(&bp, &i, 1, 366)))
return NULL;
tm->tm_yday = i - 1;
break;
case 'M': /* The minute. */
LEGAL_ALT(ALT_O);
if (!(_NRT_convNum(&bp, &tm->tm_min, 0, 59)))
return NULL;
break;
case 'm': /* The month. */
LEGAL_ALT(ALT_O);
if (!(_NRT_convNum(&bp, &i, 1, 12)))
return NULL;
tm->tm_mon = i - 1;
break;
/* case 'p': The locale's equivalent of AM/PM.
LEGAL_ALT(0);
AM?
if (strcasecmp(am_pm[0], bp) == 0)
{
if (tm->tm_hour > 11)
return NULL;
bp += strlen(am_pm[0]);
break;
}
PM?
else if (strcasecmp(am_pm[1], bp) == 0)
{
if (tm->tm_hour > 11)
return NULL;
tm->tm_hour += 12;
bp += strlen(am_pm[1]);
break;
}
Nothing matched.
return NULL;*/
case 'S': /* The seconds. */
LEGAL_ALT(ALT_O);
if (!(_NRT_convNum(&bp, &tm->tm_sec, 0, 61)))
return NULL;
/* Determine if the next character is a decimal... */
if (*bp == '.')
{
int decimalPlaces = 0;
/* Get the fractional seconds value */
bp++;
while (*bp >= '0' && *bp <= '9')
{
double num = (double) (*bp++ - '0');
decimalPlaces++;
switch (decimalPlaces)
{
case 1:
num *= 100;
break;
case 2:
num *= 10;
break;
case 3:
break;
default:
for (i = 0; i < decimalPlaces - 3; ++i)
num /= 10.0;
break;
}
*millis += num;
}
}
break;
case 'U': /* The week of year, beginning on sunday. */
case 'W': /* The week of year, beginning on monday. */
LEGAL_ALT(ALT_O);
/*
* XXX This is bogus, as we can not assume any valid
* information present in the tm structure at this
* point to calculate a real value, so just check the
* range for now.
*/
if (!(_NRT_convNum(&bp, &i, 0, 53)))
return NULL;
break;
case 'w': /* The day of week, beginning on sunday. */
LEGAL_ALT(ALT_O);
if (!(_NRT_convNum(&bp, &tm->tm_wday, 0, 6)))
return NULL;
break;
case 'Y': /* The year. */
LEGAL_ALT(ALT_E);
i = TM_YEAR_BASE;
if (!(_NRT_convNum(&bp, &i, 0, 9999)))
return NULL;
tm->tm_year = i - TM_YEAR_BASE;
break;
case 'y': /* The year within 100 years of the epoch. */
LEGAL_ALT(ALT_E | ALT_O);
if (!(_NRT_convNum(&bp, &i, 0, 99)))
return NULL;
if (split_year)
{
tm->tm_year = ((tm->tm_year / 100) * 100) + i;
break;
}
split_year = 1;
if (i <= 68)
tm->tm_year = i + 2000 - TM_YEAR_BASE;
else
tm->tm_year = i + 1900 - TM_YEAR_BASE;
break;
/*
* Miscellaneous conversions.
*/
case 'n': /* Any kind of white-space. */
case 't':
LEGAL_ALT(0);
while (isspace(*bp))
bp++;
break;
default: /* Unknown/unsupported conversion. */
return NULL;
}
}
/* LINTED functional specification */
return ((char *) bp);
}
char *
strptime(const char *buf, const char *fmt, struct tm *tm)
{
unsigned char c;
const unsigned char *bp;
int alt_format, i, split_year = 0;
const char *new_fmt;
bp = (const unsigned char *)buf;
while (bp != NULL && (c = *fmt++) != '\0') {
/* Clear `alternate' modifier prior to new conversion. */
alt_format = 0;
i = 0;
/* Eat up white-space. */
if (isspace(c)) {
while (isspace(*bp))
bp++;
continue;
}
if (c != '%')
goto literal;
again: switch (c = *fmt++) {
case '%': /* "%%" is converted to "%". */
literal:
if (c != *bp++)
return NULL;
LEGAL_ALT(0);
continue;
/*
* "Alternative" modifiers. Just set the appropriate flag
* and start over again.
*/
case 'E': /* "%E?" alternative conversion modifier. */
LEGAL_ALT(0);
alt_format |= ALT_E;
goto again;
case 'O': /* "%O?" alternative conversion modifier. */
LEGAL_ALT(0);
alt_format |= ALT_O;
goto again;
/*
* "Complex" conversion rules, implemented through recursion.
*/
case 'c': /* Date and time, using the locale's format. */
new_fmt = _ctloc(d_t_fmt);
goto recurse;
case 'D': /* The date as "%m/%d/%y". */
new_fmt = "%m/%d/%y";
LEGAL_ALT(0);
goto recurse;
case 'F': /* The date as "%Y-%m-%d". */
new_fmt = "%Y-%m-%d";
LEGAL_ALT(0);
goto recurse;
case 'R': /* The time as "%H:%M". */
new_fmt = "%H:%M";
LEGAL_ALT(0);
goto recurse;
case 'r': /* The time in 12-hour clock representation. */
new_fmt =_ctloc(t_fmt_ampm);
LEGAL_ALT(0);
goto recurse;
case 'T': /* The time as "%H:%M:%S". */
new_fmt = "%H:%M:%S";
LEGAL_ALT(0);
goto recurse;
case 'X': /* The time, using the locale's format. */
new_fmt =_ctloc(t_fmt);
goto recurse;
case 'x': /* The date, using the locale's format. */
new_fmt =_ctloc(d_fmt);
recurse:
bp = (const unsigned char *)strptime((const char *)bp,
new_fmt, tm);
LEGAL_ALT(ALT_E);
continue;
/*
* "Elementary" conversion rules.
*/
case 'A': /* The day of week, using the locale's form. */
case 'a':
bp = find_string(bp, &tm->tm_wday, _ctloc(day),
_ctloc(abday), 7);
LEGAL_ALT(0);
continue;
case 'B': /* The month, using the locale's form. */
case 'b':
case 'h':
bp = find_string(bp, &tm->tm_mon, _ctloc(mon),
_ctloc(abmon), 12);
LEGAL_ALT(0);
continue;
case 'C': /* The century number. */
i = 20;
bp = conv_num(bp, &i, 0, 99);
i = i * 100 - TM_YEAR_BASE;
if (split_year)
i += tm->tm_year % 100;
split_year = 1;
tm->tm_year = i;
LEGAL_ALT(ALT_E);
continue;
case 'd': /* The day of month. */
case 'e':
bp = conv_num(bp, &tm->tm_mday, 1, 31);
LEGAL_ALT(ALT_O);
continue;
case 'k': /* The hour (24-hour clock representation). */
LEGAL_ALT(0);
/* FALLTHROUGH */
case 'H':
bp = conv_num(bp, &tm->tm_hour, 0, 23);
LEGAL_ALT(ALT_O);
continue;
case 'l': /* The hour (12-hour clock representation). */
LEGAL_ALT(0);
/* FALLTHROUGH */
case 'I':
bp = conv_num(bp, &tm->tm_hour, 1, 12);
if (tm->tm_hour == 12)
tm->tm_hour = 0;
LEGAL_ALT(ALT_O);
continue;
case 'j': /* The day of year. */
i = 1;
bp = conv_num(bp, &i, 1, 366);
tm->tm_yday = i - 1;
LEGAL_ALT(0);
continue;
case 'M': /* The minute. */
bp = conv_num(bp, &tm->tm_min, 0, 59);
LEGAL_ALT(ALT_O);
continue;
case 'm': /* The month. */
i = 1;
bp = conv_num(bp, &i, 1, 12);
tm->tm_mon = i - 1;
LEGAL_ALT(ALT_O);
continue;
case 'p': /* The locale's equivalent of AM/PM. */
bp = find_string(bp, &i, _ctloc(am_pm), NULL, 2);
if (tm->tm_hour > 11)
return NULL;
tm->tm_hour += i * 12;
LEGAL_ALT(0);
continue;
case 'S': /* The seconds. */
bp = conv_num(bp, &tm->tm_sec, 0, 61);
LEGAL_ALT(ALT_O);
continue;
case 'U': /* The week of year, beginning on sunday. */
case 'W': /* The week of year, beginning on monday. */
/*
* XXX This is bogus, as we can not assume any valid
* information present in the tm structure at this
* point to calculate a real value, so just check the
* range for now.
*/
bp = conv_num(bp, &i, 0, 53);
LEGAL_ALT(ALT_O);
continue;
case 'w': /* The day of week, beginning on sunday. */
bp = conv_num(bp, &tm->tm_wday, 0, 6);
LEGAL_ALT(ALT_O);
continue;
case 'Y': /* The year. */
i = TM_YEAR_BASE; /* just for data sanity... */
bp = conv_num(bp, &i, 0, 9999);
tm->tm_year = i - TM_YEAR_BASE;
LEGAL_ALT(ALT_E);
continue;
case 'y': /* The year within 100 years of the epoch. */
/* LEGAL_ALT(ALT_E | ALT_O); */
bp = conv_num(bp, &i, 0, 99);
if (split_year)
/* preserve century */
i += (tm->tm_year / 100) * 100;
else {
split_year = 1;
if (i <= 68)
i = i + 2000 - TM_YEAR_BASE;
else
i = i + 1900 - TM_YEAR_BASE;
}
tm->tm_year = i;
continue;
case 'Z':
tzset();
if (strncmp((const char *)bp, gmt, 3) == 0) {
tm->tm_isdst = 0;
#ifdef TM_GMTOFF
tm->TM_GMTOFF = 0;
#endif
#ifdef TM_ZONE
tm->TM_ZONE = gmt;
#endif
bp += 3;
} else {
const unsigned char *ep;
ep = find_string(bp, &i,
(const char * const *)tzname,
NULL, 2);
if (ep != NULL) {
tm->tm_isdst = i;
#ifdef TM_GMTOFF
tm->TM_GMTOFF = -(timezone);
#endif
#ifdef TM_ZONE
tm->TM_ZONE = tzname[i];
#endif
}
bp = ep;
}
continue;
/*
* Miscellaneous conversions.
*/
case 'n': /* Any kind of white-space. */
case 't':
while (isspace(*bp))
bp++;
LEGAL_ALT(0);
continue;
default: /* Unknown/unsupported conversion. */
return NULL;
}
}
return __UNCONST(bp);
}
/*
Dumbed down version to handle simple "YYYY-MM-DDTHH:MM:SS" format only
*/
char *
strptime(const char *buf, const char *fmt, struct tm *tm)
{
char c;
const char *bp;
//size_t len = 0;
int alt_format, i, split_year = 0;
bp = buf;
while ((c = *fmt) != '\0')
{
/* Clear `alternate' modifier prior to new conversion. */
alt_format = 0;
/* Eat up white-space. */
if (isspace(c))
{
while (isspace(*bp))
bp++;
fmt++;
continue;
}
if ((c = *fmt++) != '%')
goto literal;
//again:
switch (c = *fmt++)
{
case '%': /* "%%" is converted to "%". */
literal:
if (c != *bp++)
return (0);
break;
/*
* "Alternative" modifiers. Just set the appropriate flag
* and start over again.
*/
/*
case 'E': // "%E?" alternative conversion modifier.
LEGAL_ALT(0);
alt_format |= ALT_E;
goto again;
*/
/*
case 'O': // "%O?" alternative conversion modifier.
LEGAL_ALT(0);
alt_format |= ALT_O;
goto again;
*/
/*
* "Complex" conversion rules, implemented through recursion.
*/
/*
case 'c': // Date and time, using the locale's format.
LEGAL_ALT(ALT_E);
if (!(bp = strptime(bp, "%x %X", tm)))
return (0);
break;
*/
/*
case 'D': // The date as "%m/%d/%y".
LEGAL_ALT(0);
if (!(bp = strptime(bp, "%m/%d/%y", tm)))
return (0);
break;
*/
/*
case 'R': // The time as "%H:%M".
LEGAL_ALT(0);
if (!(bp = strptime(bp, "%H:%M", tm)))
return (0);
break;
*/
/*
case 'r': // The time in 12-hour clock representation.
LEGAL_ALT(0);
if (!(bp = strptime(bp, "%I:%M:%S %p", tm)))
return (0);
break;
*/
/*
case 'T': // The time as "%H:%M:%S".
LEGAL_ALT(0);
if (!(bp = strptime(bp, "%H:%M:%S", tm)))
return (0);
break;
*/
/*
case 'X': // The time, using the locale's format.
LEGAL_ALT(ALT_E);
if (!(bp = strptime(bp, "%H:%M:%S", tm)))
return (0);
break;
*/
/*
case 'x': // The date, using the locale's format.
LEGAL_ALT(ALT_E);
if (!(bp = strptime(bp, "%m/%d/%y", tm)))
return (0);
break;
*/
/*
* "Elementary" conversion rules.
*/
/*
case 'A': // The day of week, using the locale's form.
case 'a':
LEGAL_ALT(0);
for (i = 0; i < 7; i++) {
// Full name.
len = strlen(day[i]);
if (strncasecmp(day[i], bp, len) == 0)
break;
// Abbreviated name.
len = strlen(abday[i]);
if (strncasecmp(abday[i], bp, len) == 0)
break;
}
// Nothing matched.
if (i == 7)
return (0);
tm->tm_wday = i;
bp += len;
break;
*/
/*
case 'B': // The month, using the locale's form.
case 'b':
case 'h':
LEGAL_ALT(0);
for (i = 0; i < 12; i++) {
// Full name.
len = strlen(mon[i]);
if (strncasecmp(mon[i], bp, len) == 0)
break;
// Abbreviated name.
len = strlen(abmon[i]);
if (strncasecmp(abmon[i], bp, len) == 0)
break;
}
// Nothing matched.
if (i == 12)
return (0);
tm->tm_mon = i;
bp += len;
break;
*/
/*
case 'C': // The century number.
LEGAL_ALT(ALT_E);
if (!(conv_num(&bp, &i, 0, 99)))
return (0);
if (split_year) {
tm->tm_year = (tm->tm_year % 100) + (i * 100);
} else {
tm->tm_year = i * 100;
split_year = 1;
}
break;
*/
case 'd': /* The day of month. */
case 'e':
LEGAL_ALT(ALT_O);
if (!(conv_num(&bp, &tm->tm_mday, 1, 31)))
return (0);
break;
case 'k': /* The hour (24-hour clock representation). */
LEGAL_ALT(0);
/* FALLTHROUGH */
case 'H':
LEGAL_ALT(ALT_O);
if (!(conv_num(&bp, &tm->tm_hour, 0, 23)))
return (0);
break;
/*
case 'l': // The hour (12-hour clock representation).
LEGAL_ALT(0);
// FALLTHROUGH
case 'I':
LEGAL_ALT(ALT_O);
if (!(conv_num(&bp, &tm->tm_hour, 1, 12)))
return (0);
if (tm->tm_hour == 12)
tm->tm_hour = 0;
break;
*/
/*
case 'j': // The day of year.
LEGAL_ALT(0);
if (!(conv_num(&bp, &i, 1, 366)))
return (0);
tm->tm_yday = i - 1;
break;
*/
case 'M': /* The minute. */
LEGAL_ALT(ALT_O);
if (!(conv_num(&bp, &tm->tm_min, 0, 59)))
return (0);
break;
case 'm': /* The month. */
LEGAL_ALT(ALT_O);
if (!(conv_num(&bp, &i, 1, 12)))
return (0);
tm->tm_mon = i - 1;
break;
/*
case 'p': // The locale's equivalent of AM/PM.
LEGAL_ALT(0);
// AM?
if (strcasecmp(am_pm[0], bp) == 0) {
if (tm->tm_hour > 11)
return (0);
bp += strlen(am_pm[0]);
break;
}
// PM?
else if (strcasecmp(am_pm[1], bp) == 0) {
if (tm->tm_hour > 11)
return (0);
tm->tm_hour += 12;
bp += strlen(am_pm[1]);
break;
}
// Nothing matched.
return (0);
*/
case 'S': /* The seconds. */
LEGAL_ALT(ALT_O);
if (!(conv_num(&bp, &tm->tm_sec, 0, 61)))
return (0);
break;
case 'Y': /* The year. */
LEGAL_ALT(ALT_E);
if (!(conv_num(&bp, &i, 0, 9999)))
return (0);
tm->tm_year = i - TM_YEAR_BASE;
break;
case 'y': /* The year within 100 years of the epoch. */
LEGAL_ALT(ALT_E | ALT_O);
if (!(conv_num(&bp, &i, 0, 99)))
return (0);
if (split_year)
{
tm->tm_year = ((tm->tm_year / 100) * 100) + i;
break;
}
split_year = 1;
if (i <= 68)
tm->tm_year = i + 2000 - TM_YEAR_BASE;
else
tm->tm_year = i + 1900 - TM_YEAR_BASE;
break;
/*
* Miscellaneous conversions.
*/
case 'n': /* Any kind of white-space. */
case 't':
LEGAL_ALT(0);
while (isspace(*bp))
bp++;
break;
default: /* Unknown/unsupported conversion. */
return (0);
}
}
/* LINTED functional specification */
return ((char *)bp);
}
