int ext2_write_off(struct ext2_info *fs, off_t off, unsigned char *buf, size_t len)
{
struct file f;
f.inode = fs->filesys->node;
int ret = fs_file_pwrite(&f, off, buf, len);
return ret;
}
ssize_t fs_file_write(struct file *file, uint8_t *buffer, size_t length)
{
ssize_t ret = fs_file_pwrite(file, file->pos, buffer, length);
if(ret > 0)
file->pos += ret;
return ret;
}
int ext2_write_block(struct ext2_info *fs, uint64_t block, unsigned char *buf)
{
off_t off = block * ext2_sb_blocksize(fs->sb);// + fs->block*512;
struct file f;
f.inode = fs->filesys->node;
int ret = fs_file_pwrite(&f, off, buf, ext2_sb_blocksize(fs->sb));
return ret;
}
int sys_write(int fp, off_t pos, unsigned char *buf, size_t count)
{
struct file *f = file_get(fp);
if(!f)
return -EBADF;
if(!count || !buf) {
file_put(f);
return -EINVAL;
}
if(!(f->flags & _FWRITE)) {
file_put(f);
return -EACCES;
}
int ret = fs_file_pwrite(f, pos, buf, count);
file_put(f);
return ret;
}
