Mirror of :pserver:cvs@cvs.fefe.de:/cvs libowfat https://www.fefe.de/libowfat/
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#define _GNU_SOURCE
#define __deprecated__
#include "scan.h"
#include "byte.h"
#include "case.h"
#include <time.h>
#include <stdlib.h>
#ifdef sgi
extern char** environ;
#endif
/* "2014-05-27T19:22:16Z" */
size_t scan_iso8601(const char* in,struct timespec* t) {
struct tm x;
const char* c;
unsigned long tmp;
size_t i;
if (!(c=in)) return 0;
if ((i=scan_ulong(c,&tmp))<4 || c[i]!='-') return 0; c+=i+1; x.tm_year=(int)(tmp-1900);
if (scan_ulong(c,&tmp)!=2 || c[2]!='-') return 0; c+=3; x.tm_mon=(int)(tmp-1);
if (scan_ulong(c,&tmp)!=2 || c[2]!='T') return 0; c+=3; x.tm_mday=(int)tmp;
if (scan_ulong(c,&tmp)!=2 || c[2]!=':') return 0; c+=3; x.tm_hour=(int)tmp;
if (scan_ulong(c,&tmp)!=2 || c[2]!=':') return 0; c+=3; x.tm_min=(int)tmp;
if (scan_ulong(c,&tmp)!=2) return 0; c+=2; x.tm_sec=(int)tmp;
if (*c=='.') {
++c;
i=scan_ulong(c,&tmp);
c+=i;
if (i<1 || i>9)
t->tv_nsec=0;
else {
while (i<9) {
++i;
tmp*=10;
}
t->tv_nsec=tmp;
}
}
x.tm_wday=x.tm_yday=x.tm_isdst=x.tm_gmtoff=0;
#if defined(__dietlibc__) || defined(__GLIBC__)
t->tv_sec=timegm(&x);
#elif defined(__MINGW32__)
t->tv_sec=mktime(&x);
#else
{
#ifdef sgi
char** old=environ;
char** newenv={0};
environ=newenv;
t->tv_sec=mktime(&x);
environ=old;
#else
char* old=getenv("TZ");
unsetenv("TZ");
t->tv_sec=mktime(&x);
if (old) setenv("TZ",old,1);
#endif
}
#endif
if (*c=='+' || *c=='-') {
int signum = (*c=='-') - (*c=='+');
++c;
if (scan_ulong(c,&tmp)!=4) return 0; c+=4;
t->tv_sec+=signum*60*(int)(tmp/100)*60+(int)(tmp%100);
} else if (*c=='Z')
++c;
else
return 0;
return (size_t)(c-in);
}