把绝对时间转换成当前时间

linux下把从1977年经过的秒数转换为当前时间

#include
#include
#include
int main(int argc, char  **argv)
{
       time_t timep = 1295837391;
       if (argc < 2)
       {
          printf("Please input second from 1977/n");
          return -1;
       }
       argv++;
       timep = atoi(*argv);
       printf("%s/n", ctime(&timep));
       return 0;
}