ulimit open files linux打开文件数设置验证

 #include <stdio.h>
   #include <sys/types.h>
   #include <fcntl.h>
   #include <stdlib.h>
   #include <unistd.h>

   int main(int argc,char *argv[]){

       int fd;
      char name[];
      int i = ;
      while(){
          sprintf(name,"file%d",++i);
          fd = open(name,O_CREAT,); //超过最大打开数时再打开会出错，返回-1
          if (fd == -){
              exit();
          }
          printf("%d ",i);
      }
      return ;
  }