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time_rec.c
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/*
* Copyright (C) 2001-2003 FhG Fokus
* Copyright (C) 2020 OpenSIPS Solutions
*
* This file is part of opensips, a free SIP server.
*
* opensips is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version
*
* opensips is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <stdio.h>
#include <string.h>
#include <time.h>
#include "mem/mem.h"
#include "mem/shm_mem.h"
#include "lib/osips_malloc.h"
#include "time_rec.h"
#include "ut.h"
/*
* USE_YWEEK_U -- Sunday system - see strftime %U
* USE_YWEEK_V -- ISO 8601 - see strftime %V
* USE_YWEEK_W -- Monday system - see strftime %W
*/
#ifndef USE_YWEEK_U
#ifndef USE_YWEEK_V
#ifndef USE_YWEEK_W
#define USE_YWEEK_W /* Monday system */
#endif
#endif
#endif
#define WDAY_SU 0
#define WDAY_MO 1
#define WDAY_TU 2
#define WDAY_WE 3
#define WDAY_TH 4
#define WDAY_FR 5
#define WDAY_SA 6
#define WDAY_NU 7
#define SEC_DAILY (60 * 60 * 24)
#define SEC_WEEKLY (7 * SEC_DAILY)
#define SEC_MONTHLY_MAX (31 * SEC_DAILY)
#define SEC_YEARLY_MAX (366 * SEC_DAILY)
#ifdef USE_YWEEK_U
#define SUN_WEEK(t) (int)(((t)->tm_yday + 7 - \
((t)->tm_wday)) / 7)
#else
#define MON_WEEK(t) (int)(((t)->tm_yday + 7 - \
((t)->tm_wday ? (t)->tm_wday - 1 : 6)) / 7)
#endif
#define ac_get_wday_yr(t) (int)((t)->tm_yday/7)
#define ac_get_wday_mr(t) (int)(((t)->tm_mday-1)/7)
#define is_leap_year(yyyy) ((((yyyy)%400))?(((yyyy)%100)?(((yyyy)%4)?0:1):0):1)
#define REC_ERR -1
#define REC_MATCH 0
#define REC_NOMATCH 1
#define _IS_SET(x) ((x) != TR_NOVAL)
#define _D(c) ((c) -'0')
#define TR_SEPARATOR '|'
#define load_TR_value( _p,_s, _tr, _func, _err, _done) \
do{ \
int _rc = 0; \
_s = strchr(_p, (int)TR_SEPARATOR); \
if (_s) \
*_s = 0; \
/* LM_DBG("----parsing tr param <%s>\n",_p); \ */\
if(_s != _p) {\
_rc = _func( _tr, _p); \
if (_rc < 0) {\
LM_DBG("func error\n"); \
if (_s) *_s = TR_SEPARATOR; \
goto _err; \
} \
} \
if (_s) { \
*_s = TR_SEPARATOR; \
if (_rc == 0) \
_p = _s+1; /* rc > 1 means: "input not consumed" */ \
if ( *(_p)==0 ) \
goto _done; \
} else if (_rc == 0) { /* if all "input is consumed" */ \
goto _done; \
}\
} while(0)
#if 0 /* debugging mode */
#define LM_DEV LM_ERR
#else
#define LM_DEV(...)
#endif
typedef struct _ac_maxval
{
int yweek;
int yday; /* current year's max days (365-366) */
int ywday;
int mweek; /* current month's max number of weeks (4-5) */
int mday; /* current month's max days (28-31) */
int mwday; /* current month's max occurrences of current day (4-5) */
} ac_maxval_t, *ac_maxval_p;
typedef struct _ac_tm
{
time_t time;
struct tm t;
int mweek;
int yweek;
int ywday;
int wom; /* current day's week of the month (0-4) */
char flags;
} ac_tm_t, *ac_tm_p;
#define TR_OP_NUL 0
#define TR_OP_AND 1
#define TR_OP_OR 2
int ac_tm_reset(ac_tm_p);
int ac_get_mweek(struct tm*);
int ac_get_yweek(struct tm*);
int ac_get_wkst();
int ac_print(ac_tm_p);
time_t ic_parse_datetime(char*,struct tm*);
time_t ic_parse_duration(char*);
tr_byxxx_p ic_parse_byday(char*, char);
tr_byxxx_p ic_parse_byxxx(char*, char);
int ic_parse_wkst(char*);
static inline int strz2int(char *_bp)
{
int _v;
char *_p;
_v = 0;
_p = _bp;
while(*_p && *_p>='0' && *_p<='9')
{
_v += *_p - '0';
_p++;
}
return _v;
}
/**
* Check if @x falls within the recurring [@bgn, @end) time interval,
* according to @freq.
*
* @x: value to check
* @bgn: interval start
* @end: interval end
* @dur: duration of the interval (effectively: @end - @bgn)
* @freq: FREQ_WEEKLY / FREQ_MONTHLY / FREQ_YEARLY
*
* Return: REC_MATCH or REC_NOMATCH
*/
int check_recur_itv(struct tm *x, struct tm *bgn, struct tm *end,
time_t dur, int freq);
static inline void ac_tm_fill(ac_tm_p _atp, struct tm* _tm)
{
_atp->t = *_tm;
#if 0
_atp->mweek = ac_get_mweek(_tm);
#endif
_atp->yweek = ac_get_yweek(_tm);
_atp->ywday = ac_get_wday_yr(_tm);
_atp->wom = ac_get_wday_mr(_tm);
}
#define TZ_INTACT ((char *)-1)
static char *old_tz = TZ_INTACT;
void tz_set(const str *tz)
{
#define TZBUF_SZ 50
char tzbuf[TZBUF_SZ];
if (tz->len >= TZBUF_SZ)
return;
memcpy(tzbuf, tz->s, tz->len);
tzbuf[tz->len] = '\0';
_tz_set(tzbuf);
#undef TZBUF_SZ
}
void _tz_set(const char *tz)
{
LM_DBG("setting timezone to: '%s'\n", tz);
old_tz = getenv("TZ");
setenv("TZ", tz, 1);
tzset();
}
void tz_reset(void)
{
if (old_tz == TZ_INTACT)
return;
if (!old_tz) {
LM_DBG("resetting timezone to system default\n");
unsetenv("TZ");
} else {
LM_DBG("resetting timezone to '%s'\n", old_tz);
setenv("TZ", old_tz, 1);
}
tzset();
old_tz = TZ_INTACT;
}
time_t tz_adjust_ts(time_t unix_time, const str *tz)
{
struct tm local_tm;
time_t adj_ts;
tz_set(_str("UTC"));
localtime_r(&unix_time, &local_tm );
tz_reset();
if (tz)
tz_set(tz);
adj_ts = mktime(&local_tm);
tz_reset();
if (local_tm.tm_isdst > 0)
adj_ts -= 3600;
LM_DBG("UNIX ts: %ld, local-adjusted ts: %ld (tz: '%.*s', DST: %s)\n",
(long int)unix_time, (long int)adj_ts, tz ? tz->len : 4,
tz ? tz->s : "null", local_tm.tm_isdst == 1 ? "on" :
local_tm.tm_isdst == 0 ? "off" : "unavail");
return adj_ts;
}
static inline void ac_tm_set_time(ac_tm_p _atp, time_t _t)
{
struct tm ltime;
memset(_atp, 0, sizeof *_atp);
_atp->time = _t;
localtime_r(&_t, <ime);
ac_tm_fill(_atp, <ime);
}
int ac_get_mweek(struct tm* _tm)
{
if(!_tm)
return -1;
#ifdef USE_YWEEK_U
return ((_tm->tm_mday-1)/7 + (7-_tm->tm_wday+(_tm->tm_mday-1)%7)/7);
#else
return ((_tm->tm_mday-1)/7 + (7-(6+_tm->tm_wday)%7+(_tm->tm_mday-1)%7)/7);
#endif
}
int ac_get_yweek(struct tm* _tm)
{
int week = -1;
#ifdef USE_YWEEK_V
int days;
#endif
if(!_tm)
return -1;
#ifdef USE_YWEEK_U
week = SUN_WEEK(_tm);
#else
week = MON_WEEK(_tm);
#endif
#ifdef USE_YWEEK_V
days = ((_tm->tm_yday + 7 - (_tm->tm_wday ? _tm->tm_wday-1 : 6)) % 7);
if(days >= 4)
week++;
else
if(week == 0)
week = 53;
#endif
return week;
}
int ac_get_wkst(void)
{
#ifdef USE_YWEEK_U
return 0;
#else
return 1;
#endif
}
int ac_tm_reset(ac_tm_p _atp)
{
if(!_atp)
return -1;
memset(_atp, 0, sizeof(ac_tm_t));
return 0;
}
static ac_maxval_p ac_get_maxval(ac_tm_p _atp)
{
static ac_maxval_t _amp;
struct tm _tm;
int _v;
/* the number of the days in the year */
_amp.yday = 365 + is_leap_year(_atp->t.tm_year+1900);
/* the number of the days in the month */
switch(_atp->t.tm_mon)
{
case 1:
if(_amp.yday == 366)
_amp.mday = 29;
else
_amp.mday = 28;
break;
case 3: case 5: case 8: case 10:
_amp.mday = 30;
break;
default:
_amp.mday = 31;
}
/* maximum occurrences of a week day in the year */
memset(&_tm, 0, sizeof(struct tm));
_tm.tm_year = _atp->t.tm_year;
_tm.tm_mon = 11;
_tm.tm_mday = 31;
mktime(&_tm);
_v = 0;
if(_atp->t.tm_wday > _tm.tm_wday)
_v = _atp->t.tm_wday - _tm.tm_wday + 1;
else
_v = _tm.tm_wday - _atp->t.tm_wday;
_amp.ywday = (int)((_tm.tm_yday-_v)/7) + 1;
/* maximum number of weeks in the year */
_amp.yweek = ac_get_yweek(&_tm) + 1;
/* maximum number of the week day in the month */
_amp.mwday=(int)((_amp.mday-1-(_amp.mday-_atp->t.tm_mday)%7)/7)+1;
#if 0
/* maximum number of weeks in the month */
_v = (_atp->t.tm_wday + (_amp.mday - _atp->t.tm_mday)%7)%7;
#ifdef USE_YWEEK_U
_amp.mweek = (int)((_amp.mday-1)/7+(7-_v+(_amp.mday-1)%7)/7)+1;
#else
_amp.mweek = (int)((_amp.mday-1)/7+(7-(6+_v)%7+(_amp.mday-1)%7)/7)+1;
#endif
#endif
return &_amp;
}
int ac_print(ac_tm_p _atp)
{
static char *_wdays[] = {"SU", "MO", "TU", "WE", "TH", "FR", "SA"};
if(!_atp)
{
printf("\n(null)\n");
return -1;
}
printf("\nSys time: %d\nTime: %02d:%02d:%02d\n", (int)_atp->time,
_atp->t.tm_hour, _atp->t.tm_min, _atp->t.tm_sec);
printf("Date: %s, %04d-%02d-%02d\n", _wdays[_atp->t.tm_wday],
_atp->t.tm_year+1900, _atp->t.tm_mon+1, _atp->t.tm_mday);
printf("Year day: %d\nYear week-day: %d\nYear week: %d\n", _atp->t.tm_yday,
_atp->ywday, _atp->yweek);
printf("Month week: %d\nMonth week-day: %d\n", _atp->mweek, _atp->wom);
return 0;
}
tr_byxxx_p tr_byxxx_new(char alloc)
{
tr_byxxx_p _bxp = NULL;
if (alloc & PKG_ALLOC)
_bxp = (tr_byxxx_p)pkg_malloc(sizeof(tr_byxxx_t));
else
_bxp = (tr_byxxx_p)shm_malloc(sizeof(tr_byxxx_t));
if(!_bxp)
return NULL;
memset(_bxp, 0, sizeof(tr_byxxx_t));
_bxp->flags = alloc;
return _bxp;
}
int tr_byxxx_init(tr_byxxx_p _bxp, int _nr)
{
_bxp->nr = _nr;
if (_bxp->flags & PKG_ALLOC) {
_bxp->xxx = (int*)pkg_malloc(_nr*sizeof(int));
_bxp->req = (int*)pkg_malloc(_nr*sizeof(int));
} else {
_bxp->xxx = (int*)shm_malloc(_nr*sizeof(int));
_bxp->req = (int*)shm_malloc(_nr*sizeof(int));
}
if (!_bxp->xxx || !_bxp->req)
goto oom;
memset(_bxp->xxx, 0, _nr*sizeof(int));
memset(_bxp->req, 0, _nr*sizeof(int));
return 0;
oom:
LM_ERR("oom\n");
if (_bxp->flags & PKG_ALLOC) {
pkg_free(_bxp->xxx);
pkg_free(_bxp->req);
} else {
shm_free(_bxp->xxx);
shm_free(_bxp->req);
}
return -1;
}
int tr_byxxx_free(tr_byxxx_p _bxp)
{
if (!_bxp)
return -1;
if (_bxp->flags & PKG_ALLOC) {
pkg_free(_bxp->xxx);
pkg_free(_bxp->req);
pkg_free(_bxp);
} else {
shm_free(_bxp->xxx);
shm_free(_bxp->req);
shm_free(_bxp);
}
return 0;
}
void tmrec_init(tmrec_p t)
{
memset(t, 0, sizeof *t);
/* these values may be legitimately set to 0 (i.e. UNIX start time) */
t->dtstart = TR_NOVAL;
t->dtend = TR_NOVAL;
t->duration = TR_NOVAL;
t->freq = TR_NOVAL;
t->until = TR_NOVAL;
t->interval = TR_NOVAL;
}
static inline void tmrec_expr_init(tmrec_expr_t *e)
{
memset(e, 0, sizeof *e);
INIT_LIST_HEAD(&e->operands);
tmrec_init(&e->tr);
}
tmrec_p tmrec_new(char alloc)
{
tmrec_p _trp;
if (alloc & PKG_ALLOC)
_trp = (tmrec_p)pkg_malloc(sizeof(tmrec_t));
else
_trp = (tmrec_p)shm_malloc(sizeof(tmrec_t));
if(!_trp)
return NULL;
tmrec_init(_trp);
_trp->flags = alloc;
return _trp;
}
void tmrec_free(tmrec *tr)
{
tmrec_p _trp = (tmrec_p)tr;
if(!_trp)
return;
tr_byxxx_free(_trp->byday);
tr_byxxx_free(_trp->bymday);
tr_byxxx_free(_trp->byyday);
tr_byxxx_free(_trp->bymonth);
tr_byxxx_free(_trp->byweekno);
if (_trp->flags & PKG_ALLOC) {
pkg_free(_trp->tz);
pkg_free(_trp);
} else {
shm_free(_trp->tz);
shm_free(_trp);
}
}
int tr_parse_tz(tmrec_p _trp, char *_in)
{
if (!_trp || !_in)
return -1;
if (*_in < 'A' || *_in > 'Z')
return 1;
if (_trp->flags & PKG_ALLOC)
_trp->tz = pkg_strdup(_in);
else
_trp->tz = shm_strdup(_in);
if (!_trp->tz) {
LM_ERR("oom\n");
return -1;
}
return 0;
}
int tr_parse_dtstart(tmrec_p _trp, char *_in)
{
if (!_in)
return -1;
_trp->dtstart = ic_parse_datetime(_in, &(_trp->ts));
return (_trp->dtstart == TR_NOVAL) ? -1 : 0;
}
int tr_parse_dtend(tmrec_p _trp, char *_in)
{
struct tm _tm;
if (!_in)
return -1;
_trp->dtend = ic_parse_datetime(_in,&_tm);
return (_trp->dtend == TR_NOVAL) ? -1 : 0;
}
int tr_parse_duration(tmrec_p _trp, char *_in)
{
if (!_in)
return -1;
_trp->duration = ic_parse_duration(_in);
return (_trp->duration == TR_NOVAL) ? -1 : 0;
}
int tr_parse_until(tmrec_p _trp, char *_in)
{
struct tm _tm;
if (!_in)
return -1;
_trp->until = ic_parse_datetime(_in, &_tm);
return (_trp->until == TR_NOVAL) ? -1 : 0;
}
int tr_parse_freq(tmrec_p _trp, char *_in)
{
if (!_in)
return -1;
if(strlen(_in)<5)
{
_trp->freq = FREQ_NOFREQ;
return 0;
}
if(!strcasecmp(_in, "daily"))
{
_trp->freq = FREQ_DAILY;
return 0;
}
if(!strcasecmp(_in, "weekly"))
{
_trp->freq = FREQ_WEEKLY;
return 0;
}
if(!strcasecmp(_in, "monthly"))
{
_trp->freq = FREQ_MONTHLY;
return 0;
}
if(!strcasecmp(_in, "yearly"))
{
_trp->freq = FREQ_YEARLY;
return 0;
}
_trp->freq = FREQ_NOFREQ;
return 0;
}
int tr_parse_interval(tmrec_p _trp, char *_in)
{
if (!_in)
return -1;
_trp->interval = strz2int(_in);
return 0;
}
int tr_parse_byday(tmrec_p _trp, char *_in)
{
if (!_in)
return -1;
_trp->byday = ic_parse_byday(_in, _trp->flags);
_trp->flags |= TR_BYXXX;
return 0;
}
int tr_parse_bymday(tmrec_p _trp, char *_in)
{
if (!_in)
return -1;
_trp->bymday = ic_parse_byxxx(_in, _trp->flags);
_trp->flags |= TR_BYXXX;
return 0;
}
int tr_parse_byyday(tmrec_p _trp, char *_in)
{
if (!_in)
return -1;
_trp->byyday = ic_parse_byxxx(_in, _trp->flags);
_trp->flags |= TR_BYXXX;
return 0;
}
int tr_parse_bymonth(tmrec_p _trp, char *_in)
{
if (!_in)
return -1;
_trp->bymonth = ic_parse_byxxx(_in, _trp->flags);
_trp->flags |= TR_BYXXX;
return 0;
}
int tr_parse_byweekno(tmrec_p _trp, char *_in)
{
if (!_in)
return -1;
_trp->byweekno = ic_parse_byxxx(_in, _trp->flags);
_trp->flags |= TR_BYXXX;
return 0;
}
int tr_parse_wkst(tmrec_p _trp, char *_in)
{
if (!_in)
return -1;
_trp->wkst = ic_parse_wkst(_in);
return 0;
}
int tmrec_print(const tmrec *tr)
{
static char *_wdays[] = {"SU", "MO", "TU", "WE", "TH", "FR", "SA"};
tmrec_p _trp = (tmrec_p)tr;
int i;
if(!_trp)
{
printf("\n(null)\n");
return -1;
}
printf("Recurrence definition\n-- start time ---\n");
printf("Sys time: %d\n", (int)_trp->dtstart);
printf("Time: %02d:%02d:%02d\n", _trp->ts.tm_hour,
_trp->ts.tm_min, _trp->ts.tm_sec);
printf("Date: %s, %04d-%02d-%02d\n", _wdays[_trp->ts.tm_wday],
_trp->ts.tm_year+1900, _trp->ts.tm_mon+1, _trp->ts.tm_mday);
printf("---\n");
printf("End time: %d\n", (int)_trp->dtend);
printf("Duration: %d\n", (int)_trp->duration);
printf("Until: %d\n", (int)_trp->until);
printf("Freq: %d\n", (int)_trp->freq);
printf("Interval: %d\n", (int)_trp->interval);
if(_trp->byday)
{
printf("Byday: ");
for(i=0; i<_trp->byday->nr; i++)
printf(" %d%s", _trp->byday->req[i], _wdays[_trp->byday->xxx[i]]);
printf("\n");
}
if(_trp->bymday)
{
printf("Bymday: %d:", _trp->bymday->nr);
for(i=0; i<_trp->bymday->nr; i++)
printf(" %d", _trp->bymday->xxx[i]*_trp->bymday->req[i]);
printf("\n");
}
if(_trp->byyday)
{
printf("Byyday:");
for(i=0; i<_trp->byyday->nr; i++)
printf(" %d", _trp->byyday->xxx[i]*_trp->byyday->req[i]);
printf("\n");
}
if(_trp->bymonth)
{
printf("Bymonth: %d:", _trp->bymonth->nr);
for(i=0; i< _trp->bymonth->nr; i++)
printf(" %d", _trp->bymonth->xxx[i]*_trp->bymonth->req[i]);
printf("\n");
}
if(_trp->byweekno)
{
printf("Byweekno: ");
for(i=0; i<_trp->byweekno->nr; i++)
printf(" %d", _trp->byweekno->xxx[i]*_trp->byweekno->req[i]);
printf("\n");
}
printf("Weekstart: %d\n", _trp->wkst);
return 0;
}
time_t ic_parse_datetime(char *_in, struct tm *_tm)
{
struct tm t;
if (!_in || strlen(_in)!=15)
return TR_NOVAL;
t.tm_year = _D(_in[0])*1000 + _D(_in[1])*100
+ _D(_in[2])*10 + _D(_in[3]);
if (t.tm_year < 1970) {
LM_ERR("invalid year in Date-Time: '%s'\n", _in);
return TR_NOVAL;
}
t.tm_year -= 1900; /* per man ctime(3) */
t.tm_mon = _D(_in[4])*10 + _D(_in[5]) - 1;
t.tm_mday = _D(_in[6])*10 + _D(_in[7]);
if (t.tm_mon == -1 || t.tm_mday == 0) {
LM_ERR("month or month day cannot be zero in Date-Time: '%s'\n", _in);
return TR_NOVAL;
}
t.tm_hour = _D(_in[9])*10 + _D(_in[10]);
t.tm_min = _D(_in[11])*10 + _D(_in[12]);
t.tm_sec = _D(_in[13])*10 + _D(_in[14]);
t.tm_isdst = -1 /*daylight*/;
*_tm = t;
return mktime(_tm);
}
time_t ic_parse_duration(char *_in)
{
time_t _t, _ft;
char *_p;
int _fl;
if(!_in || strlen(_in)<2)
return TR_NOVAL;
if(*_in == 'P' || *_in=='p')
{
_p = _in+1;
_fl = 1;
} else {
_p = _in;
_fl = 0;
}
_t = _ft = 0;
while(*_p)
{
switch(*_p)
{
case '0': case '1': case '2':
case '3': case '4': case '5':
case '6': case '7': case '8':
case '9':
_t = _t*10 + *_p - '0';
break;
case 'w':
case 'W':
if(!_fl)
{
LM_ERR("week duration not allowed"
" here (%d) [%s]\n", (int)(_p-_in), _in);
return 0;
}
_ft += _t*7*24*3600;
_t = 0;
break;
case 'd':
case 'D':
if(!_fl)
{
LM_ERR("day duration not allowed"
" here (%d) [%s]\n", (int)(_p-_in), _in);
return 0;
}
_ft += _t*24*3600;
_t = 0;
break;
case 'h':
case 'H':
if(_fl)
{
LM_ERR("hour duration not allowed"
" here (%d) [%s]\n", (int)(_p-_in), _in);
return 0;
}
_ft += _t*3600;
_t = 0;
break;
case 'm':
case 'M':
if(_fl)
{
LM_ERR("minute duration not allowed"
" here (%d) [%s]\n", (int)(_p-_in), _in);
return 0;
}
_ft += _t*60;
_t = 0;
break;
case 's':
case 'S':
if(_fl)
{
LM_ERR("second duration not allowed"
" here (%d) [%s]\n", (int)(_p-_in), _in);
return 0;
}
_ft += _t;
_t = 0;
break;
case 't':
case 'T':
if(!_fl)
{
LM_ERR("'T' not allowed"
" here (%d) [%s]\n", (int)(_p-_in), _in);
return 0;
}
_fl = 0;
break;
default:
LM_ERR("bad character here (%d) [%s]\n",
(int)(_p-_in), _in);
return 0;
}
_p++;
}
return _ft;
}
tr_byxxx_p ic_parse_byday(char *_in, char type)
{
tr_byxxx_p _bxp = NULL;
int _nr, _s, _v;
char *_p;
if(!_in)
return NULL;
_bxp = tr_byxxx_new(type);
if(!_bxp)
return NULL;
_p = _in;
_nr = 1;
while(*_p)
{
if(*_p == ',')
_nr++;
_p++;
}
if(tr_byxxx_init(_bxp, _nr) < 0)
{
tr_byxxx_free(_bxp);
return NULL;
}
_p = _in;
_nr = _v = 0;
_s = 1;
while(*_p && _nr < _bxp->nr)
{
switch(*_p)
{
case '0': case '1': case '2':
case '3': case '4': case '5':
case '6': case '7': case '8':
case '9':
_v = _v*10 + *_p - '0';
break;
case 's':
case 'S':
_p++;
switch(*_p)
{
case 'a':
case 'A':
_bxp->xxx[_nr] = WDAY_SA;
break;
case 'u':
case 'U':
_bxp->xxx[_nr] = WDAY_SU;
break;
default:
goto error;
}
_bxp->req[_nr] = _s * _v;
if (_bxp->req[_nr] > 0)
_bxp->req[_nr]--;
_s = 1;
_v = 0;
break;
case 'm':
case 'M':
_p++;
if(*_p!='o' && *_p!='O')
goto error;
_bxp->xxx[_nr] = WDAY_MO;
_bxp->req[_nr] = _s * _v;
if (_bxp->req[_nr] > 0)
_bxp->req[_nr]--;
_s = 1;
_v = 0;
break;
case 't':
case 'T':
_p++;
switch(*_p)
{
case 'h':
case 'H':
_bxp->xxx[_nr] = WDAY_TH;
break;
case 'u':
case 'U':
_bxp->xxx[_nr] = WDAY_TU;
break;
default:
goto error;
}
_bxp->req[_nr] = _s * _v;
if (_bxp->req[_nr] > 0)
_bxp->req[_nr]--;
_s = 1;
_v = 0;
break;
case 'w':