ADD file via upload

getdents.c

@@ -0,0 +1,30 @@
+int sys_getdents(unsigned int fd,struct linux_dirent *dirp,unsigned int count)
+{
+	struct buffer_head *bh;
+	struct m_inode*inode=current->filp[fd]->f_inode;
+	struct linux_dirent m;
+	struct dir_entry *dir;
+	char *buf;
+	int k,n=0,i;
+	if(count<=0)return -1;
+	bh=bread(inode->i_dev,inode->i_zone[0]);
+	for(k=0;k<inode->i_size;k+=sizeof(struct linux_dirent))
+	{
+		if(n+sizeof(struct linux_dirent)>count)return 0;
+		dir=(struct dir_entry*)(bh->b_data+k);
+		if(dir->inode)
+		{
+			m.d_ino=dir->inode;
+			for(i=0;i<NAME_LEN;i++)m.d_name[i]=dir->name[i];
+			m.d_off=0;
+			m.d_reclen=sizeof(struct linux_dirent);
+			buf=&m;
+			for(i=0;i<m.d_reclen;i++)
+			put_fs_byte(*(buf+i),(char*)(dirp)+n+i);
+			n+=sizeof(struct linux_dirent);
+		}
+		else continue;
+	}
+	brelse(bh);
+	return n;
+}