Differential D28677 Diff 83996 sys/contrib/openzfs/cmd/mount_zfs/mount_zfs.c

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	/*			/*
	* Opportunistically convert a target string into a pool name. If the			* Opportunistically convert a target string into a pool name. If the
	* string does not represent a block device with a valid zfs label			* string does not represent a block device with a valid zfs label
	* then it is passed through without modification.			* then it is passed through without modification.
	*/			*/
	static void			static void
	parse_dataset(const char target, char *dataset)			parse_dataset(const char target, char *dataset)
	{			{
				/*
				* Prior to util-linux 2.36.2, if a file or directory in the
				* current working directory was named 'dataset' then mount(8)
				* would prepend the current working directory to the dataset.
				* Check for it and strip the prepended path when it is added.
				*/
				char cwd[PATH_MAX];
				if (getcwd(cwd, PATH_MAX) == NULL) {
				perror("getcwd");
				return;
				}
				int len = strlen(cwd);
				if (strncmp(cwd, target, len) == 0)
				target += len;

	/* Assume pool/dataset is more likely */			/* Assume pool/dataset is more likely */
	strlcpy(*dataset, target, PATH_MAX);			strlcpy(*dataset, target, PATH_MAX);

	int fd = open(target, O_RDONLY \| O_CLOEXEC);			int fd = open(target, O_RDONLY \| O_CLOEXEC);
	if (fd < 0)			if (fd < 0)
	return;			return;

	nvlist_t *cfg = NULL;			nvlist_t *cfg = NULL;
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