C语言获取编译日期时间和系统时间

{
const int MONTH_PER_YEAR=12;
const char szEnglishMonth[MONTH_PER_YEAR][4]={ "Jan","Feb","Mar","Apr","May","Jun","Jul","Aug","Sep","Oct","Nov","Dec"};
char szTmpDate[40]={0};
char szTmpTime[20]={0};
char szMonth[4]={0};
int iYear,iMonth,iDay,iHour,iMin,iSec;//,,

//获取编译日期、时间
sprintf(szTmpDate,"%s",__DATE__); //"Sep 18 2010"
sprintf(szTmpTime,"%s",__TIME__); //"10:59:19"

sscanf(szTmpDate,"%s %d %d",szMonth,&iDay,&iYear);
sscanf(szTmpTime,"%d:%d:%d",&iHour,&iMin,&iSec);

for(int i=0;MONTH_PER_YEAR;i++)
{
if(strncmp(szMonth,szEnglishMonth[i],3)==0)
{
iMonth=i+1;
break;
}
}

printf("%d,%d,%d,%d,%d,%d",iYear,iMonth,iDay,iHour,iMin,iSec);
sprintf(szDateTime,"dddddd",iYear,iMonth,iDay,iHour,iMin,iSec);
return 0;
}

typedef struct
{
unsigned int Year;
unsigned int Month;
unsigned int Date;
unsigned int Hours;
unsigned int Minutes;
unsigned int Seconds;
}BuildDateTime;

const unsigned char MonthStr[12][4] = {"Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov","Dec"};

void GetBuildDateTime(BuildDateTime *p_BuildDateTime)
{
unsigned char temp_str[4] = {0, 0, 0, 0}, i = 0;

sscanf(__DATE__, "%s - M", temp_str, &(p_BuildDateTime->Date), &(p_BuildDateTime->Year));
sscanf(__TIME__, "-:-:-", &(p_BuildDateTime->Hours), &(p_BuildDateTime->Minutes), &(p_BuildDateTime->Seconds));
for (i = 0; i < 12; i++)
{
if (temp_str[0] == MonthStr[i][0] && temp_str[1] == MonthStr[i][1] && temp_str[2] == MonthStr[i][2])
{
p_BuildDateTime->Month = i + 1;
break;
}
}
}