C++ (Cpp) may_open Exemples

Exemple #1

Fichier : nfsctl.c Projet : deepikateriar/Onlive-Source-Backup

static struct file *do_open(char *name, int flags)
{
	struct nameidata nd;
	struct vfsmount *mnt;
	int error;

	mnt = do_kern_mount("nfsd", 0, "nfsd", NULL);
	if (IS_ERR(mnt))
		return (struct file *)mnt;

	error = vfs_path_lookup(mnt->mnt_root, mnt, name, 0, &nd);
	mntput(mnt);	/* drop do_kern_mount reference */
	if (error)
		return ERR_PTR(error);

	if (flags == O_RDWR)
		error = may_open(&nd,MAY_READ|MAY_WRITE,FMODE_READ|FMODE_WRITE);
	else
		error = may_open(&nd, MAY_WRITE, FMODE_WRITE);

	if (!error)
		return dentry_open(nd.path.dentry, nd.path.mnt, flags);

	path_put(&nd.path);
	return ERR_PTR(error);
}

Exemple #2

Fichier : nfsctl.c Projet : BackupTheBerlios/tuxap

static struct file *do_open(char *name, int flags)
{
	struct nameidata nd;
	int error;

	nd.mnt = do_kern_mount("nfsd", 0, "nfsd", NULL);

	if (IS_ERR(nd.mnt))
		return (struct file *)nd.mnt;

	nd.dentry = dget(nd.mnt->mnt_root);
	nd.last_type = LAST_ROOT;
	nd.flags = 0;
	nd.depth = 0;

	error = path_walk(name, &nd);
	if (error)
		return ERR_PTR(error);

	if (flags == O_RDWR)
		error = may_open(&nd,MAY_READ|MAY_WRITE,FMODE_READ|FMODE_WRITE);
	else
		error = may_open(&nd, MAY_WRITE, FMODE_WRITE);

	if (!error)
		return dentry_open(nd.dentry, nd.mnt, flags);

	path_release(&nd);
	return ERR_PTR(error);
}