mirror of
https://git.wownero.com/wownero/wownero.git
synced 2024-12-23 16:58:53 +00:00
346 lines
9.0 KiB
C
346 lines
9.0 KiB
C
/** strptime workaround (for oa macos leopard)
|
|
* This strptime follows the man strptime (2001-11-12)
|
|
* conforming to SUSv2, POSIX.1-2001
|
|
*
|
|
* This very simple version of strptime has no:
|
|
* - E alternatives
|
|
* - O alternatives
|
|
* - Glibc additions
|
|
* - Does not process week numbers
|
|
* - Does not properly processes year day
|
|
*
|
|
* LICENSE
|
|
* Copyright (c) 2008, NLnet Labs, Matthijs Mekking
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions are met:
|
|
* * Redistributions of source code must retain the above copyright notice,
|
|
* this list of conditions and the following disclaimer.
|
|
* * 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.
|
|
* * Neither the name of NLnetLabs 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 COPYRIGHT HOLDERS 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 COPYRIGHT OWNER 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.
|
|
**/
|
|
|
|
#include "config.h"
|
|
|
|
#ifndef HAVE_CONFIG_H
|
|
#include <time.h>
|
|
#endif
|
|
|
|
#ifndef STRPTIME_WORKS
|
|
|
|
#define TM_YEAR_BASE 1900
|
|
|
|
#include <ctype.h>
|
|
#include <string.h>
|
|
|
|
static const char *abb_weekdays[] = {
|
|
"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat", NULL
|
|
};
|
|
static const char *full_weekdays[] = {
|
|
"Sunday", "Monday", "Tuesday", "Wednesday",
|
|
"Thursday", "Friday", "Saturday", NULL
|
|
};
|
|
static const char *abb_months[] = {
|
|
"Jan", "Feb", "Mar", "Apr", "May", "Jun",
|
|
"Jul", "Aug", "Sep", "Oct", "Nov", "Dec", NULL
|
|
};
|
|
static const char *full_months[] = {
|
|
"January", "February", "March", "April", "May", "June",
|
|
"July", "August", "September", "October", "November", "December", NULL
|
|
};
|
|
static const char *ampm[] = {
|
|
"am", "pm", NULL
|
|
};
|
|
|
|
static int
|
|
match_string(const char **buf, const char **strs)
|
|
{
|
|
int i = 0;
|
|
|
|
for (i = 0; strs[i] != NULL; i++) {
|
|
int len = strlen(strs[i]);
|
|
if (strncasecmp (*buf, strs[i], len) == 0) {
|
|
*buf += len;
|
|
return i;
|
|
}
|
|
}
|
|
return -1;
|
|
}
|
|
|
|
static int
|
|
str2int(const char **buf, int max)
|
|
{
|
|
int ret=0, count=0;
|
|
|
|
while (*buf[0] != '\0' && isdigit((unsigned char)*buf[0]) && count<max) {
|
|
ret = ret*10 + (*buf[0] - '0');
|
|
(*buf)++;
|
|
count++;
|
|
}
|
|
|
|
if (!count)
|
|
return -1;
|
|
return ret;
|
|
}
|
|
|
|
/** Converts the character string s to values which are stored in tm
|
|
* using the format specified by format
|
|
**/
|
|
char *
|
|
unbound_strptime(const char *s, const char *format, struct tm *tm)
|
|
{
|
|
int c, ret;
|
|
int split_year = 0;
|
|
|
|
while ((c = *format) != '\0') {
|
|
/* whitespace, literal or format */
|
|
if (isspace((unsigned char)c)) { /* whitespace */
|
|
/** whitespace matches zero or more whitespace characters in the
|
|
* input string.
|
|
**/
|
|
while (isspace((unsigned char)*s))
|
|
s++;
|
|
}
|
|
else if (c == '%') { /* format */
|
|
format++;
|
|
c = *format;
|
|
switch (c) {
|
|
case '%': /* %% is converted to % */
|
|
if (*s != c) {
|
|
return NULL;
|
|
}
|
|
s++;
|
|
break;
|
|
case 'a': /* weekday name, abbreviated or full */
|
|
case 'A':
|
|
ret = match_string(&s, full_weekdays);
|
|
if (ret < 0)
|
|
ret = match_string(&s, abb_weekdays);
|
|
if (ret < 0) {
|
|
return NULL;
|
|
}
|
|
tm->tm_wday = ret;
|
|
break;
|
|
case 'b': /* month name, abbreviated or full */
|
|
case 'B':
|
|
case 'h':
|
|
ret = match_string(&s, full_months);
|
|
if (ret < 0)
|
|
ret = match_string(&s, abb_months);
|
|
if (ret < 0) {
|
|
return NULL;
|
|
}
|
|
tm->tm_mon = ret;
|
|
break;
|
|
case 'c': /* date and time representation */
|
|
if (!(s = unbound_strptime(s, "%x %X", tm))) {
|
|
return NULL;
|
|
}
|
|
break;
|
|
case 'C': /* century number */
|
|
ret = str2int(&s, 2);
|
|
if (ret < 0 || ret > 99) { /* must be in [00,99] */
|
|
return NULL;
|
|
}
|
|
|
|
if (split_year) {
|
|
tm->tm_year = ret*100 + (tm->tm_year%100);
|
|
}
|
|
else {
|
|
tm->tm_year = ret*100 - TM_YEAR_BASE;
|
|
split_year = 1;
|
|
}
|
|
break;
|
|
case 'd': /* day of month */
|
|
case 'e':
|
|
ret = str2int(&s, 2);
|
|
if (ret < 1 || ret > 31) { /* must be in [01,31] */
|
|
return NULL;
|
|
}
|
|
tm->tm_mday = ret;
|
|
break;
|
|
case 'D': /* equivalent to %m/%d/%y */
|
|
if (!(s = unbound_strptime(s, "%m/%d/%y", tm))) {
|
|
return NULL;
|
|
}
|
|
break;
|
|
case 'H': /* hour */
|
|
ret = str2int(&s, 2);
|
|
if (ret < 0 || ret > 23) { /* must be in [00,23] */
|
|
return NULL;
|
|
}
|
|
tm->tm_hour = ret;
|
|
break;
|
|
case 'I': /* 12hr clock hour */
|
|
ret = str2int(&s, 2);
|
|
if (ret < 1 || ret > 12) { /* must be in [01,12] */
|
|
return NULL;
|
|
}
|
|
if (ret == 12) /* actually [0,11] */
|
|
ret = 0;
|
|
tm->tm_hour = ret;
|
|
break;
|
|
case 'j': /* day of year */
|
|
ret = str2int(&s, 2);
|
|
if (ret < 1 || ret > 366) { /* must be in [001,366] */
|
|
return NULL;
|
|
}
|
|
tm->tm_yday = ret;
|
|
break;
|
|
case 'm': /* month */
|
|
ret = str2int(&s, 2);
|
|
if (ret < 1 || ret > 12) { /* must be in [01,12] */
|
|
return NULL;
|
|
}
|
|
/* months go from 0-11 */
|
|
tm->tm_mon = (ret-1);
|
|
break;
|
|
case 'M': /* minute */
|
|
ret = str2int(&s, 2);
|
|
if (ret < 0 || ret > 59) { /* must be in [00,59] */
|
|
return NULL;
|
|
}
|
|
tm->tm_min = ret;
|
|
break;
|
|
case 'n': /* arbitrary whitespace */
|
|
case 't':
|
|
while (isspace((unsigned char)*s))
|
|
s++;
|
|
break;
|
|
case 'p': /* am pm */
|
|
ret = match_string(&s, ampm);
|
|
if (ret < 0) {
|
|
return NULL;
|
|
}
|
|
if (tm->tm_hour < 0 || tm->tm_hour > 11) { /* %I */
|
|
return NULL;
|
|
}
|
|
|
|
if (ret == 1) /* pm */
|
|
tm->tm_hour += 12;
|
|
break;
|
|
case 'r': /* equivalent of %I:%M:%S %p */
|
|
if (!(s = unbound_strptime(s, "%I:%M:%S %p", tm))) {
|
|
return NULL;
|
|
}
|
|
break;
|
|
case 'R': /* equivalent of %H:%M */
|
|
if (!(s = unbound_strptime(s, "%H:%M", tm))) {
|
|
return NULL;
|
|
}
|
|
break;
|
|
case 'S': /* seconds */
|
|
ret = str2int(&s, 2);
|
|
/* 60 may occur for leap seconds */
|
|
/* earlier 61 was also allowed */
|
|
if (ret < 0 || ret > 60) { /* must be in [00,60] */
|
|
return NULL;
|
|
}
|
|
tm->tm_sec = ret;
|
|
break;
|
|
case 'T': /* equivalent of %H:%M:%S */
|
|
if (!(s = unbound_strptime(s, "%H:%M:%S", tm))) {
|
|
return NULL;
|
|
}
|
|
break;
|
|
case 'U': /* week number, with the first Sun of Jan being w1 */
|
|
ret = str2int(&s, 2);
|
|
if (ret < 0 || ret > 53) { /* must be in [00,53] */
|
|
return NULL;
|
|
}
|
|
/** it is hard (and not necessary for nsd) to determine time
|
|
* data from week number.
|
|
**/
|
|
break;
|
|
case 'w': /* day of week */
|
|
ret = str2int(&s, 1);
|
|
if (ret < 0 || ret > 6) { /* must be in [0,6] */
|
|
return NULL;
|
|
}
|
|
tm->tm_wday = ret;
|
|
break;
|
|
case 'W': /* week number, with the first Mon of Jan being w1 */
|
|
ret = str2int(&s, 2);
|
|
if (ret < 0 || ret > 53) { /* must be in [00,53] */
|
|
return NULL;
|
|
}
|
|
/** it is hard (and not necessary for nsd) to determine time
|
|
* data from week number.
|
|
**/
|
|
break;
|
|
case 'x': /* date format */
|
|
if (!(s = unbound_strptime(s, "%m/%d/%y", tm))) {
|
|
return NULL;
|
|
}
|
|
break;
|
|
case 'X': /* time format */
|
|
if (!(s = unbound_strptime(s, "%H:%M:%S", tm))) {
|
|
return NULL;
|
|
}
|
|
break;
|
|
case 'y': /* last two digits of a year */
|
|
ret = str2int(&s, 2);
|
|
if (ret < 0 || ret > 99) { /* must be in [00,99] */
|
|
return NULL;
|
|
}
|
|
if (split_year) {
|
|
tm->tm_year = ((tm->tm_year/100) * 100) + ret;
|
|
}
|
|
else {
|
|
split_year = 1;
|
|
|
|
/** currently:
|
|
* if in [0,68] we are in 21th century,
|
|
* if in [69,99] we are in 20th century.
|
|
**/
|
|
if (ret < 69) /* 2000 */
|
|
ret += 100;
|
|
tm->tm_year = ret;
|
|
}
|
|
break;
|
|
case 'Y': /* year */
|
|
ret = str2int(&s, 4);
|
|
if (ret < 0 || ret > 9999) {
|
|
return NULL;
|
|
}
|
|
tm->tm_year = ret - TM_YEAR_BASE;
|
|
break;
|
|
case '\0':
|
|
default: /* unsupported, cannot match format */
|
|
return NULL;
|
|
break;
|
|
}
|
|
}
|
|
else { /* literal */
|
|
/* if input cannot match format, return NULL */
|
|
if (*s != c)
|
|
return NULL;
|
|
s++;
|
|
}
|
|
|
|
format++;
|
|
}
|
|
|
|
/* return pointer to remainder of s */
|
|
return (char*) s;
|
|
}
|
|
|
|
#endif /* STRPTIME_WORKS */
|