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