#include <sys/types.h>
#include <sys/ioctl.h>
#include <libprop/proplib.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <fcntl.h>
#include <unistd.h>
#include <errno.h>

#define DM_IOCTL 0xfd
#define DM_IOCTL_CMD 0
#define NETBSD_DM_IOCTL _IOWR(DM_IOCTL, DM_IOCTL_CMD, struct plistref)

int main(int argc, char **argv)
{
	prop_dictionary_t dict, ret = NULL;
	prop_array_t ver;
	const char *cmd = (argc > 1) ? argv[1] : "remove";
	const char *name = (argc > 2) ? argv[2] : "vol";
	int fd, error;

	dict = prop_dictionary_create();
	ver = prop_array_create();
	prop_array_add_uint32(ver, 4);
	prop_array_add_uint32(ver, 0);
	prop_array_add_uint32(ver, 0);
	prop_dictionary_set(dict, "version", ver);
	prop_object_release(ver);
	prop_dictionary_set_cstring(dict, "command", cmd);
	prop_dictionary_set_cstring(dict, "name", name);
	prop_dictionary_set_uint32(dict, "flags", 4); /* DM_EXISTS_FLAG */
	prop_dictionary_set_cstring(dict, "uuid", "");

	fd = open("/dev/mapper/control", O_RDWR);
	if (fd < 0) { perror("open"); return 1; }

	error = prop_dictionary_sendrecv_ioctl(dict, fd, NETBSD_DM_IOCTL, &ret);
	printf("sendrecv(%s %s): error=%d errno=%d\n", cmd, name, error, errno);
	if (ret) {
		char *xml = prop_dictionary_externalize(ret);
		if (xml) { printf("reply: %.400s\n", xml); free(xml); }
		prop_object_release(ret);
	}
	return (error ? 1 : 0);
}