Linux下如何实现获取当前路径文件属性

想要实现这样的效果：
readdir获取目录
判断解析权限位
lstat获取具体信息
获取时间

int list_common(void)
{  
	DIR *dir = opendir(".");  
	if(dir==NULL){      
		return 0;
	}
	//遍历  
	struct dirent* dt;  
	struct stat sbuf;  
	while((dt = readdir(dir))!=NULL)    //当前目录{       
		if(lstat(dt->d_name,&sbuf)<0)//获取文件状态，保存到第二个参数中     
		{		           
			continue;     
		}            
		//过滤 .xxx 文件       
		if(dt->d_name[0]=='.'){           
			continue;       
		}       
		//开始解析权限位 drwxr-xr-x      
		char perms[]="----------";
		perms[0]='?';       
		mode_t mode = sbuf.st_mode;       
		switch (mode&S_IFMT)     {       
			case S_IFREG:  
			perms[0]='-';           
			break;       
			case S_IFDIR:       
			perms[0]='d'; 
			break; 
			case S_IFLNK:        
			perms[0]='l';           
			break;
			case S_IFIFO:       
			perms[0]='p'   
			break;     
			case S_IFSOCK:           
			perms[0]='s';           
			break;
			case S_IFCHR:        
			perms[0]='c';
			break;       
			case S_IFBLK:           
			perms[0]='b';          
			break;   
			default:   
			break;       
		}
   
	if(mode&&S_IRUSR)   
	{     
		perms[1]='r';
	}
	if(mode&&S_IWUSR)
	{        
		perms[2]='w';   
	}      
	if(mode&&S_IXUSR)    
	{           
		perms[3]='x';       
	}        
	if(mode&&S_IRGRP)
	{
          	  perms[4]='r';       
	}
	if(mode&&S_IWGRP)   
	{        
		perms[5]='w';    
	}      
	if(mode&&S_IXGRP)     
	{         
		perms[6]='x';   
	}     
	if(mode&&S_IROTH)
	{       
		perms[7]='r';   
	}    
	if(mode&&S_IWOTH)   
	{
		perms[8]='w';       
	}
	if(mode&&S_IXOTH)
	{         
		perms[9]='x';   
	}   
	if(mode&S_ISUID)    
	{
		perms[3]=(perms[3]=='x')?'s':'S';
	}   
	if(mode&S_ISGID)       
	{           
		perms[6]=(perms[6]=='x')?'s':'S';       
	}       
	if(mode&S_ISVTX)       
	{           
		perms[9]=(perms[9]=='x')?'t':'T';       
	}
	//硬连接数  st_nlink 
    
	char buf[1024] = {0};    
	int off = 0;   	
	off += sprintf(buf,"%s",perms);    
	off += sprintf(buf+off,"%3ld %-8d %-8d",sbuf.st_nlink,sbuf.st_uid,sbuf.st_gid);    
	off += sprintf(buf+off,"%8lu ",sbuf.st_size);
	//时间格式     	
	const char *p_date_format = "%b %e %H:%M";    
	struct timeval tv;
	gettimeofday(&tv,NULL);     //获取系统时间   
	time_t local_time = tv.tv_sec;     
	if(sbuf.st_mtime>local_time||(local_time-sbuf.st_mtime)>60*60*24*182)       
	{           
		p_date_format =  "%b  %e  %Y";
	}
	char databuf[64]={0};       
	struct tm*p_tm = localtime(&local_time);      
	strftime(databuf,sizeof(databuf),p_date_format,p_tm);       
	off += sprintf(buf+off,"%s",databuf);               
	//文件名  要判断是否是链接文件            
	if(S_ISLNK(sbuf.st_mode)){           
		char tmp[1024] = {0};         	
		readlink(dt->d_name,tmp,sizeof(tmp));           
		off += sprintf(buf+off,"%s -> %s\r\n",dt->d_name,tmp);      
	}else{           
		off += sprintf(buf+off,"%s\r\n",dt->d_name);
	}
	printf("%s",buf);
        }
	closedir(dir);
	return 1;
}