[thirdparty/util-linux.git] / disk-utils / blockdev.c

/*
 * blockdev.c --- Do various simple block device ioctls from the command line
 * aeb, 991028
 */

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

#include "c.h"
#include "nls.h"
#include "blkdev.h"
#include "pathnames.h"
#include "closestream.h"
#include "sysfs.h"

struct bdc {
	long		ioc;		/* ioctl code */
	const char	*iocname;	/* ioctl name (e.g. BLKROSET) */
	long		argval;		/* default argument */

	const char	*name;		/* --setfoo */
	const char	*argname;	/* argument name or NULL */

	const char	*help;

	int		argtype;
	int		flags;
};

/* command flags */
enum {
	FL_NOPTR	= (1 << 1),	/* does not assume pointer (ARG_INT only)*/
	FL_NORESULT	= (1 << 2)	/* does not return any data */
};

/* ioctl argument types */
enum {
	ARG_NONE,
	ARG_USHRT,
	ARG_INT,
	ARG_UINT,
	ARG_LONG,
	ARG_ULONG,
	ARG_LLONG,
	ARG_ULLONG
};

#define IOCTL_ENTRY( io )	.ioc = io, .iocname = # io

static const struct bdc bdcms[] =
{
	{
		IOCTL_ENTRY(BLKROSET),
		.name = "--setro",
		.argtype = ARG_INT,
		.argval = 1,
		.flags = FL_NORESULT,
		.help = N_("set read-only")
	},{
		IOCTL_ENTRY(BLKROSET),
		.name = "--setrw",
		.argtype = ARG_INT,
		.argval = 0,
		.flags = FL_NORESULT,
		.help = N_("set read-write")
	},{
		IOCTL_ENTRY(BLKROGET),
		.name = "--getro",
		.argtype = ARG_INT,
		.argval = -1,
		.help = N_("get read-only")
	},{
		IOCTL_ENTRY(BLKDISCARDZEROES),
		.name = "--getdiscardzeroes",
		.argtype = ARG_UINT,
		.argval = -1,
		.help = N_("get discard zeroes support status")
	},{
		IOCTL_ENTRY(BLKSSZGET),
		.name = "--getss",
		.argtype = ARG_INT,
		.argval = -1,
		.help = N_("get logical block (sector) size")
	},{
		IOCTL_ENTRY(BLKPBSZGET),
		.name = "--getpbsz",
		.argtype = ARG_UINT,
		.argval = -1,
		.help = N_("get physical block (sector) size")
	},{
		IOCTL_ENTRY(BLKIOMIN),
		.name = "--getiomin",
		.argtype = ARG_UINT,
		.argval = -1,
		.help = N_("get minimum I/O size")
	},{
		IOCTL_ENTRY(BLKIOOPT),
		.name = "--getioopt",
		.argtype = ARG_UINT,
		.argval = -1,
		.help = N_("get optimal I/O size")
	},{
		IOCTL_ENTRY(BLKALIGNOFF),
		.name = "--getalignoff",
		.argtype = ARG_INT,
		.argval = -1,
		.help = N_("get alignment offset in bytes")
	},{
		IOCTL_ENTRY(BLKSECTGET),
		.name = "--getmaxsect",
		.argtype = ARG_USHRT,
		.argval = -1,
		.help = N_("get max sectors per request")
	},{
		IOCTL_ENTRY(BLKBSZGET),
		.name = "--getbsz",
		.argtype = ARG_INT,
		.argval = -1,
		.help = N_("get blocksize")
	},{
		IOCTL_ENTRY(BLKBSZSET),
		.name = "--setbsz",
		.argname = "<bytes>",
		.argtype = ARG_INT,
		.flags = FL_NORESULT,
	        .help = N_("set blocksize on file descriptor opening the block device")
	},{
		IOCTL_ENTRY(BLKGETSIZE),
		.name = "--getsize",
		.argtype = ARG_ULONG,
		.argval = -1,
		.help = N_("get 32-bit sector count (deprecated, use --getsz)")
	},{
		IOCTL_ENTRY(BLKGETSIZE64),
		.name = "--getsize64",
		.argtype = ARG_ULLONG,
		.argval = -1,
		.help = N_("get size in bytes")
	},{
		IOCTL_ENTRY(BLKRASET),
		.name = "--setra",
		.argname = "<sectors>",
		.argtype = ARG_INT,
		.flags = FL_NOPTR | FL_NORESULT,
		.help = N_("set readahead")
	},{
		IOCTL_ENTRY(BLKRAGET),
		.name = "--getra",
		.argtype = ARG_LONG,
		.argval = -1,
		.help = N_("get readahead")
	},{
		IOCTL_ENTRY(BLKFRASET),
		.name = "--setfra",
		.argname = "<sectors>",
		.argtype = ARG_INT,
		.flags = FL_NOPTR | FL_NORESULT,
		.help = N_("set filesystem readahead")
	},{
		IOCTL_ENTRY(BLKFRAGET),
		.name = "--getfra",
		.argtype = ARG_LONG,
		.argval = -1,
		.help = N_("get filesystem readahead")
	},{
		IOCTL_ENTRY(BLKFLSBUF),
		.name = "--flushbufs",
		.help = N_("flush buffers")
	},{
		IOCTL_ENTRY(BLKRRPART),
		.name = "--rereadpt",
		.help = N_("reread partition table")
	}
};

static void __attribute__ ((__noreturn__)) usage(FILE * out)
{
	size_t i;
	fprintf(out, _("\nUsage:\n"
		       " %1$s -V\n"
		       " %1$s --report [devices]\n"
		       " %1$s [-v|-q] commands devices\n\n"
		       "Available commands:\n"), program_invocation_short_name);

	fprintf(out, _(" %-25s get size in 512-byte sectors\n"), "--getsz");
	for (i = 0; i < ARRAY_SIZE(bdcms); i++) {
		if (bdcms[i].argname)
			fprintf(out, " %s %-*s %s\n", bdcms[i].name,
				(int)(24 - strlen(bdcms[i].name)),
				bdcms[i].argname, _(bdcms[i].help));
		else
			fprintf(out, " %-25s %s\n", bdcms[i].name,
				_(bdcms[i].help));
	}
	fputc('\n', out);
	exit(out == stderr ? EXIT_FAILURE : EXIT_SUCCESS);
}

static int find_cmd(char *s)
{
	size_t j;

	for (j = 0; j < ARRAY_SIZE(bdcms); j++)
		if (!strcmp(s, bdcms[j].name))
			return j;
	return -1;
}

static void do_commands(int fd, char **argv, int d);
static void report_header(void);
static void report_device(char *device, int quiet);
static void report_all_devices(void);

int main(int argc, char **argv)
{
	int fd, d, j, k;

	setlocale(LC_ALL, "");
	bindtextdomain(PACKAGE, LOCALEDIR);
	textdomain(PACKAGE);
	atexit(close_stdout);

	if (argc < 2)
		usage(stderr);

	/* -V not together with commands */
	if (!strcmp(argv[1], "-V") || !strcmp(argv[1], "--version")) {
		printf(UTIL_LINUX_VERSION);
		return EXIT_SUCCESS;
	}
	if (!strcmp(argv[1], "-h") || !strcmp(argv[1], "--help"))
		usage(stdout);

	/* --report not together with other commands */
	if (!strcmp(argv[1], "--report")) {
		report_header();
		if (argc > 2) {
			for (d = 2; d < argc; d++)
				report_device(argv[d], 0);
		} else {
			report_all_devices();
		}
		return EXIT_SUCCESS;
	}

	/* do each of the commands on each of the devices */
	/* devices start after last command */
	for (d = 1; d < argc; d++) {
		j = find_cmd(argv[d]);
		if (j >= 0) {
			if (bdcms[j].argname)
				d++;
			continue;
		}
		if (!strcmp(argv[d], "--getsz"))
			continue;
		if (!strcmp(argv[d], "--")) {
			d++;
			break;
		}
		if (argv[d][0] != '-')
			break;
	}

	if (d >= argc)
		usage(stderr);

	for (k = d; k < argc; k++) {
		fd = open(argv[k], O_RDONLY, 0);
		if (fd < 0)
			err(EXIT_FAILURE, _("cannot open %s"), argv[k]);
		do_commands(fd, argv, d);
		close(fd);
	}
	return EXIT_SUCCESS;
}

static void do_commands(int fd, char **argv, int d)
{
	int res, i, j;
	int iarg = 0;
	unsigned int uarg = 0;
	unsigned short huarg = 0;
	long larg = 0;
	long long llarg = 0;
	unsigned long lu = 0;
	unsigned long long llu = 0;
	int verbose = 0;

	for (i = 1; i < d; i++) {
		if (!strcmp(argv[i], "-v")) {
			verbose = 1;
			continue;
		}
		if (!strcmp(argv[i], "-q")) {
			verbose = 0;
			continue;
		}

		if (!strcmp(argv[i], "--getsz")) {
			res = blkdev_get_sectors(fd, &llu);
			if (res == 0)
				printf("%lld\n", llu);
			else
				errx(EXIT_FAILURE,
				     _("could not get device size"));
			continue;
		}

		j = find_cmd(argv[i]);
		if (j == -1) {
			warnx(_("Unknown command: %s"), argv[i]);
			usage(stderr);
		}

		switch (bdcms[j].argtype) {
		default:
		case ARG_NONE:
			res = ioctl(fd, bdcms[j].ioc, 0);
			break;
		case ARG_USHRT:
			huarg = bdcms[j].argval;
			res = ioctl(fd, bdcms[j].ioc, &huarg);
			break;
		case ARG_INT:
			if (bdcms[j].argname) {
				if (i == d - 1) {
					warnx(_("%s requires an argument"),
					      bdcms[j].name);
					usage(stderr);
				}
				iarg = atoi(argv[++i]);
			} else
				iarg = bdcms[j].argval;

			res = bdcms[j].flags & FL_NOPTR ?
			    ioctl(fd, bdcms[j].ioc, iarg) :
			    ioctl(fd, bdcms[j].ioc, &iarg);
			break;
		case ARG_UINT:
			uarg = bdcms[j].argval;
			res = ioctl(fd, bdcms[j].ioc, &uarg);
			break;
		case ARG_LONG:
			larg = bdcms[j].argval;
			res = ioctl(fd, bdcms[j].ioc, &larg);
			break;
		case ARG_LLONG:
			llarg = bdcms[j].argval;
			res = ioctl(fd, bdcms[j].ioc, &llarg);
			break;
		case ARG_ULONG:
			lu = bdcms[j].argval;
			res = ioctl(fd, bdcms[j].ioc, &lu);
			break;
		case ARG_ULLONG:
			llu = bdcms[j].argval;
			res = ioctl(fd, bdcms[j].ioc, &llu);
			break;
		}

		if (res == -1) {
			warn(_("ioctl error on %s"), bdcms[j].iocname);
			if (verbose)
				printf(_("%s failed.\n"), _(bdcms[j].help));
			exit(EXIT_FAILURE);
		}

		if (bdcms[j].argtype == ARG_NONE ||
		    (bdcms[j].flags & FL_NORESULT)) {
			if (verbose)
				printf(_("%s succeeded.\n"), _(bdcms[j].help));
			continue;
		}

		if (verbose)
			printf("%s: ", _(bdcms[j].help));

		switch (bdcms[j].argtype) {
		case ARG_USHRT:
			printf("%hu\n", huarg);
			break;
		case ARG_INT:
			printf("%d\n", iarg);
			break;
		case ARG_UINT:
			printf("%u\n", uarg);
			break;
		case ARG_LONG:
			printf("%ld\n", larg);
			break;
		case ARG_LLONG:
			printf("%lld\n", llarg);
			break;
		case ARG_ULONG:
			printf("%lu\n", lu);
			break;
		case ARG_ULLONG:
			printf("%llu\n", llu);
			break;
		}
	}
}

static void report_all_devices(void)
{
	FILE *procpt;
	char line[200];
	char ptname[200 + 1];
	char device[210];
	int ma, mi, sz;

	procpt = fopen(_PATH_PROC_PARTITIONS, "r");
	if (!procpt)
		err(EXIT_FAILURE, _("cannot open %s"), _PATH_PROC_PARTITIONS);

	while (fgets(line, sizeof(line), procpt)) {
		if (sscanf(line, " %d %d %d %200[^\n ]",
			   &ma, &mi, &sz, ptname) != 4)
			continue;

		sprintf(device, "/dev/%s", ptname);
		report_device(device, 1);
	}

	fclose(procpt);
}

static void report_device(char *device, int quiet)
{
	int fd;
	int ro, ssz, bsz;
	long ra;
	unsigned long long bytes;
	uint64_t start = 0;
	struct stat st;

	fd = open(device, O_RDONLY | O_NONBLOCK);
	if (fd < 0) {
		if (!quiet)
			warn(_("cannot open %s"), device);
		return;
	}

	ro = ssz = bsz = 0;
	ra = 0;
	if (fstat(fd, &st) == 0 && !sysfs_devno_is_wholedisk(st.st_rdev)) {
		struct sysfs_cxt cxt;

		if (sysfs_init(&cxt, st.st_rdev, NULL))
			err(EXIT_FAILURE,
				_("%s: failed to initialize sysfs handler"),
				device);
		if (sysfs_read_u64(&cxt, "start", &start))
			err(EXIT_FAILURE,
				_("%s: failed to read partition start from sysfs"),
				device);
		sysfs_deinit(&cxt);
	}
	if (ioctl(fd, BLKROGET, &ro) == 0 &&
	    ioctl(fd, BLKRAGET, &ra) == 0 &&
	    ioctl(fd, BLKSSZGET, &ssz) == 0 &&
	    ioctl(fd, BLKBSZGET, &bsz) == 0 &&
	    blkdev_get_size(fd, &bytes) == 0) {
		printf("%s %5ld %5d %5d %10ju %15lld   %s\n",
		       ro ? "ro" : "rw", ra, ssz, bsz, start, bytes, device);
	} else {
		if (!quiet)
			warnx(_("ioctl error on %s"), device);
	}

	close(fd);
}

static void report_header(void)
{
	printf(_("RO    RA   SSZ   BSZ   StartSec            Size   Device\n"));
}
Commit	Line	Data
eb63b9b8 KZ	1	/*
	2	* blockdev.c --- Do various simple block device ioctls from the command line
	3	* aeb, 991028
	4	*/
	5
	6	#include <stdio.h>
	7	#include <fcntl.h>
eb63b9b8 KZ	8	#include <stdlib.h>
	9	#include <string.h>
	10	#include <unistd.h>
	11	#include <sys/ioctl.h>
3281d426	12	#include <errno.h>
eb63b9b8	13
515422fd	14	#include "c.h"
eb63b9b8	15	#include "nls.h"
bc8b6383	16	#include "blkdev.h"
14c76d8b	17	#include "pathnames.h"
45ca68ec	18	#include "closestream.h"
569d1dac	19	#include "sysfs.h"
612721db	20
eb63b9b8	21	struct bdc {
c3f62be7 KZ	22	long ioc; /* ioctl code */
	23	const char iocname; / ioctl name (e.g. BLKROSET) */
	24	long argval; /* default argument */
	25
	26	const char name; / --setfoo */
	27	const char argname; / argument name or NULL */
	28
	29	const char *help;
	30
	31	int argtype;
	32	int flags;
	33	};
	34
	35	/* command flags */
	36	enum {
	37	FL_NOPTR = (1 << 1), /* does not assume pointer (ARG_INT only)*/
	38	FL_NORESULT = (1 << 2) /* does not return any data */
	39	};
	40
	41	/* ioctl argument types */
	42	enum {
	43	ARG_NONE,
726fa24e	44	ARG_USHRT,
c3f62be7	45	ARG_INT,
726fa24e	46	ARG_UINT,
c3f62be7 KZ	47	ARG_LONG,
	48	ARG_ULONG,
	49	ARG_LLONG,
	50	ARG_ULLONG
	51	};
	52
	53	#define IOCTL_ENTRY( io ) .ioc = io, .iocname = # io
	54
00239f33	55	static const struct bdc bdcms[] =
c3f62be7 KZ	56	{
	57	{
	58	IOCTL_ENTRY(BLKROSET),
	59	.name = "--setro",
	60	.argtype = ARG_INT,
	61	.argval = 1,
	62	.flags = FL_NORESULT,
	63	.help = N_("set read-only")
	64	},{
	65	IOCTL_ENTRY(BLKROSET),
	66	.name = "--setrw",
	67	.argtype = ARG_INT,
	68	.argval = 0,
	69	.flags = FL_NORESULT,
	70	.help = N_("set read-write")
	71	},{
	72	IOCTL_ENTRY(BLKROGET),
	73	.name = "--getro",
	74	.argtype = ARG_INT,
	75	.argval = -1,
	76	.help = N_("get read-only")
1519ab5f KZ	77	},{
	78	IOCTL_ENTRY(BLKDISCARDZEROES),
	79	.name = "--getdiscardzeroes",
	80	.argtype = ARG_UINT,
	81	.argval = -1,
	82	.help = N_("get discard zeroes support status")
c3f62be7 KZ	83	},{
	84	IOCTL_ENTRY(BLKSSZGET),
	85	.name = "--getss",
	86	.argtype = ARG_INT,
	87	.argval = -1,
d965d63f KZ	88	.help = N_("get logical block (sector) size")
	89	},{
	90	IOCTL_ENTRY(BLKPBSZGET),
	91	.name = "--getpbsz",
	92	.argtype = ARG_UINT,
	93	.argval = -1,
	94	.help = N_("get physical block (sector) size")
	95	},{
	96	IOCTL_ENTRY(BLKIOMIN),
	97	.name = "--getiomin",
	98	.argtype = ARG_UINT,
	99	.argval = -1,
	100	.help = N_("get minimum I/O size")
	101	},{
	102	IOCTL_ENTRY(BLKIOOPT),
	103	.name = "--getioopt",
	104	.argtype = ARG_UINT,
	105	.argval = -1,
	106	.help = N_("get optimal I/O size")
	107	},{
	108	IOCTL_ENTRY(BLKALIGNOFF),
	109	.name = "--getalignoff",
	110	.argtype = ARG_INT,
ed98508a	111	.argval = -1,
455fdf4a	112	.help = N_("get alignment offset in bytes")
d965d63f KZ	113	},{
	114	IOCTL_ENTRY(BLKSECTGET),
	115	.name = "--getmaxsect",
	116	.argtype = ARG_USHRT,
	117	.argval = -1,
	118	.help = N_("get max sectors per request")
c3f62be7 KZ	119	},{
	120	IOCTL_ENTRY(BLKBSZGET),
	121	.name = "--getbsz",
	122	.argtype = ARG_INT,
	123	.argval = -1,
	124	.help = N_("get blocksize")
39d2e706 KZ	125	},{
	126	IOCTL_ENTRY(BLKBSZSET),
	127	.name = "--setbsz",
	128	.argname = "<bytes>",
	129	.argtype = ARG_INT,
	130	.flags = FL_NORESULT,
7ab32ae6	131	.help = N_("set blocksize on file descriptor opening the block device")
c3f62be7 KZ	132	},{
	133	IOCTL_ENTRY(BLKGETSIZE),
	134	.name = "--getsize",
	135	.argtype = ARG_ULONG,
	136	.argval = -1,
455fdf4a	137	.help = N_("get 32-bit sector count (deprecated, use --getsz)")
c3f62be7 KZ	138	},{
	139	IOCTL_ENTRY(BLKGETSIZE64),
	140	.name = "--getsize64",
	141	.argtype = ARG_ULLONG,
	142	.argval = -1,
	143	.help = N_("get size in bytes")
	144	},{
	145	IOCTL_ENTRY(BLKRASET),
	146	.name = "--setra",
455fdf4a	147	.argname = "<sectors>",
c3f62be7 KZ	148	.argtype = ARG_INT,
	149	.flags = FL_NOPTR \| FL_NORESULT,
	150	.help = N_("set readahead")
	151	},{
	152	IOCTL_ENTRY(BLKRAGET),
	153	.name = "--getra",
	154	.argtype = ARG_LONG,
	155	.argval = -1,
	156	.help = N_("get readahead")
	157	},{
	158	IOCTL_ENTRY(BLKFRASET),
	159	.name = "--setfra",
455fdf4a	160	.argname = "<sectors>",
c3f62be7 KZ	161	.argtype = ARG_INT,
	162	.flags = FL_NOPTR \| FL_NORESULT,
	163	.help = N_("set filesystem readahead")
	164	},{
	165	IOCTL_ENTRY(BLKFRAGET),
	166	.name = "--getfra",
	167	.argtype = ARG_LONG,
	168	.argval = -1,
	169	.help = N_("get filesystem readahead")
	170	},{
	171	IOCTL_ENTRY(BLKFLSBUF),
	172	.name = "--flushbufs",
	173	.help = N_("flush buffers")
	174	},{
	175	IOCTL_ENTRY(BLKRRPART),
	176	.name = "--rereadpt",
	177	.help = N_("reread partition table")
	178	}
eb63b9b8 KZ	179	};
eb63b9b8 KZ	180
bded204c SK	181	static void __attribute__ ((__noreturn__)) usage(FILE * out)
bded204c SK	182	{
75737ad6	183	size_t i;
bded204c	184	fprintf(out, _("\nUsage:\n"
637775c7 KZ	185	" %1$s -V\n"
	186	" %1$s --report [devices]\n"
	187	" %1$s [-v\|-q] commands devices\n\n"
bded204c	188	"Available commands:\n"), program_invocation_short_name);
a424171c	189
637775c7	190	fprintf(out, _(" %-25s get size in 512-byte sectors\n"), "--getsz");
515422fd	191	for (i = 0; i < ARRAY_SIZE(bdcms); i++) {
eb63b9b8	192	if (bdcms[i].argname)
637775c7	193	fprintf(out, " %s %-*s %s\n", bdcms[i].name,
bded204c SK	194	(int)(24 - strlen(bdcms[i].name)),
bded204c SK	195	bdcms[i].argname, _(bdcms[i].help));
a424171c	196	else
637775c7	197	fprintf(out, " %-25s %s\n", bdcms[i].name,
bded204c	198	_(bdcms[i].help));
eb63b9b8	199	}
bded204c SK	200	fputc('\n', out);
bded204c SK	201	exit(out == stderr ? EXIT_FAILURE : EXIT_SUCCESS);
eb63b9b8 KZ	202	}
eb63b9b8 KZ	203
baaa4479 SK	204	static int find_cmd(char *s)
baaa4479 SK	205	{
75737ad6	206	size_t j;
eb63b9b8	207
515422fd	208	for (j = 0; j < ARRAY_SIZE(bdcms); j++)
eb63b9b8 KZ	209	if (!strcmp(s, bdcms[j].name))
	210	return j;
	211	return -1;
	212	}
	213
f61a097b WG	214	static void do_commands(int fd, char **argv, int d);
	215	static void report_header(void);
	216	static void report_device(char *device, int quiet);
	217	static void report_all_devices(void);
eb63b9b8	218
baaa4479 SK	219	int main(int argc, char **argv)
baaa4479 SK	220	{
eb63b9b8	221	int fd, d, j, k;
eb63b9b8	222
eb63b9b8 KZ	223	setlocale(LC_ALL, "");
	224	bindtextdomain(PACKAGE, LOCALEDIR);
	225	textdomain(PACKAGE);
45ca68ec	226	atexit(close_stdout);
eb63b9b8 KZ	227
eb63b9b8 KZ	228	if (argc < 2)
bded204c	229	usage(stderr);
eb63b9b8 KZ	230
	231	/* -V not together with commands */
	232	if (!strcmp(argv[1], "-V") \|\| !strcmp(argv[1], "--version")) {
e421313d	233	printf(UTIL_LINUX_VERSION);
6b515d0b	234	return EXIT_SUCCESS;
eb63b9b8	235	}
bded204c SK	236	if (!strcmp(argv[1], "-h") \|\| !strcmp(argv[1], "--help"))
bded204c SK	237	usage(stdout);
eb63b9b8	238
612721db KZ	239	/* --report not together with other commands */
	240	if (!strcmp(argv[1], "--report")) {
	241	report_header();
	242	if (argc > 2) {
	243	for (d = 2; d < argc; d++)
	244	report_device(argv[d], 0);
	245	} else {
	246	report_all_devices();
	247	}
6b515d0b	248	return EXIT_SUCCESS;
612721db KZ	249	}
612721db KZ	250
eb63b9b8 KZ	251	/* do each of the commands on each of the devices */
	252	/* devices start after last command */
	253	for (d = 1; d < argc; d++) {
	254	j = find_cmd(argv[d]);
	255	if (j >= 0) {
c3f62be7	256	if (bdcms[j].argname)
eb63b9b8 KZ	257	d++;
	258	continue;
	259	}
c129767e KZ	260	if (!strcmp(argv[d], "--getsz"))
c129767e KZ	261	continue;
eb63b9b8 KZ	262	if (!strcmp(argv[d], "--")) {
	263	d++;
	264	break;
	265	}
	266	if (argv[d][0] != '-')
	267	break;
	268	}
	269
	270	if (d >= argc)
bded204c	271	usage(stderr);
eb63b9b8 KZ	272
	273	for (k = d; k < argc; k++) {
	274	fd = open(argv[k], O_RDONLY, 0);
6b515d0b SK	275	if (fd < 0)
6b515d0b SK	276	err(EXIT_FAILURE, _("cannot open %s"), argv[k]);
eb63b9b8	277	do_commands(fd, argv, d);
e8f26419	278	close(fd);
eb63b9b8	279	}
6b515d0b	280	return EXIT_SUCCESS;
eb63b9b8 KZ	281	}
eb63b9b8 KZ	282
f61a097b	283	static void do_commands(int fd, char **argv, int d)
baaa4479	284	{
eb63b9b8	285	int res, i, j;
15705de0 KZ	286	int iarg = 0;
	287	unsigned int uarg = 0;
	288	unsigned short huarg = 0;
	289	long larg = 0;
	290	long long llarg = 0;
	291	unsigned long lu = 0;
	292	unsigned long long llu = 0;
eb63b9b8 KZ	293	int verbose = 0;
	294
	295	for (i = 1; i < d; i++) {
	296	if (!strcmp(argv[i], "-v")) {
	297	verbose = 1;
	298	continue;
baaa4479	299	}
eb63b9b8 KZ	300	if (!strcmp(argv[i], "-q")) {
	301	verbose = 0;
	302	continue;
	303	}
	304
c129767e	305	if (!strcmp(argv[i], "--getsz")) {
bc8b6383	306	res = blkdev_get_sectors(fd, &llu);
c129767e	307	if (res == 0)
bc8b6383	308	printf("%lld\n", llu);
c129767e	309	else
baaa4479 SK	310	errx(EXIT_FAILURE,
baaa4479 SK	311	_("could not get device size"));
c129767e KZ	312	continue;
	313	}
	314
eb63b9b8 KZ	315	j = find_cmd(argv[i]);
eb63b9b8 KZ	316	if (j == -1) {
cc4d8d72	317	warnx(_("Unknown command: %s"), argv[i]);
bded204c	318	usage(stderr);
eb63b9b8 KZ	319	}
eb63b9b8 KZ	320
baaa4479	321	switch (bdcms[j].argtype) {
eb63b9b8	322	default:
c3f62be7	323	case ARG_NONE:
eb63b9b8 KZ	324	res = ioctl(fd, bdcms[j].ioc, 0);
eb63b9b8 KZ	325	break;
726fa24e KZ	326	case ARG_USHRT:
	327	huarg = bdcms[j].argval;
	328	res = ioctl(fd, bdcms[j].ioc, &huarg);
	329	break;
c3f62be7 KZ	330	case ARG_INT:
c3f62be7 KZ	331	if (bdcms[j].argname) {
baaa4479	332	if (i == d - 1) {
cc4d8d72	333	warnx(_("%s requires an argument"),
baaa4479	334	bdcms[j].name);
bded204c	335	usage(stderr);
c3f62be7 KZ	336	}
	337	iarg = atoi(argv[++i]);
	338	} else
	339	iarg = bdcms[j].argval;
	340
	341	res = bdcms[j].flags & FL_NOPTR ?
baaa4479 SK	342	ioctl(fd, bdcms[j].ioc, iarg) :
baaa4479 SK	343	ioctl(fd, bdcms[j].ioc, &iarg);
eb63b9b8	344	break;
726fa24e KZ	345	case ARG_UINT:
	346	uarg = bdcms[j].argval;
	347	res = ioctl(fd, bdcms[j].ioc, &uarg);
	348	break;
c3f62be7	349	case ARG_LONG:
eb63b9b8 KZ	350	larg = bdcms[j].argval;
	351	res = ioctl(fd, bdcms[j].ioc, &larg);
	352	break;
c3f62be7	353	case ARG_LLONG:
c129767e KZ	354	llarg = bdcms[j].argval;
	355	res = ioctl(fd, bdcms[j].ioc, &llarg);
	356	break;
c3f62be7	357	case ARG_ULONG:
1dea05a8 KZ	358	lu = bdcms[j].argval;
	359	res = ioctl(fd, bdcms[j].ioc, &lu);
	360	break;
c3f62be7	361	case ARG_ULLONG:
1dea05a8 KZ	362	llu = bdcms[j].argval;
	363	res = ioctl(fd, bdcms[j].ioc, &llu);
	364	break;
eb63b9b8	365	}
c3f62be7	366
eb63b9b8	367	if (res == -1) {
338a6bc5	368	warn(_("ioctl error on %s"), bdcms[j].iocname);
eb63b9b8	369	if (verbose)
65b27d36	370	printf(_("%s failed.\n"), _(bdcms[j].help));
6b515d0b	371	exit(EXIT_FAILURE);
eb63b9b8	372	}
c3f62be7 KZ	373
	374	if (bdcms[j].argtype == ARG_NONE \|\|
	375	(bdcms[j].flags & FL_NORESULT)) {
eb63b9b8	376	if (verbose)
c3f62be7 KZ	377	printf(_("%s succeeded.\n"), _(bdcms[j].help));
	378	continue;
	379	}
	380
	381	if (verbose)
	382	printf("%s: ", _(bdcms[j].help));
	383
baaa4479	384	switch (bdcms[j].argtype) {
726fa24e KZ	385	case ARG_USHRT:
	386	printf("%hu\n", huarg);
	387	break;
c3f62be7 KZ	388	case ARG_INT:
c3f62be7 KZ	389	printf("%d\n", iarg);
eb63b9b8	390	break;
726fa24e KZ	391	case ARG_UINT:
	392	printf("%u\n", uarg);
	393	break;
c3f62be7 KZ	394	case ARG_LONG:
c3f62be7 KZ	395	printf("%ld\n", larg);
c129767e	396	break;
c3f62be7 KZ	397	case ARG_LLONG:
c3f62be7 KZ	398	printf("%lld\n", llarg);
1dea05a8	399	break;
c3f62be7 KZ	400	case ARG_ULONG:
c3f62be7 KZ	401	printf("%lu\n", lu);
1dea05a8	402	break;
c3f62be7 KZ	403	case ARG_ULLONG:
c3f62be7 KZ	404	printf("%llu\n", llu);
eb63b9b8 KZ	405	break;
	406	}
	407	}
	408	}
612721db	409
f61a097b	410	static void report_all_devices(void)
baaa4479	411	{
612721db KZ	412	FILE *procpt;
612721db KZ	413	char line[200];
657d9adb	414	char ptname[200 + 1];
612721db KZ	415	char device[210];
	416	int ma, mi, sz;
	417
14c76d8b	418	procpt = fopen(_PATH_PROC_PARTITIONS, "r");
cc4d8d72	419	if (!procpt)
14c76d8b	420	err(EXIT_FAILURE, _("cannot open %s"), _PATH_PROC_PARTITIONS);
612721db KZ	421
612721db KZ	422	while (fgets(line, sizeof(line), procpt)) {
baaa4479 SK	423	if (sscanf(line, " %d %d %d %200[^\n ]",
baaa4479 SK	424	&ma, &mi, &sz, ptname) != 4)
612721db KZ	425	continue;
	426
	427	sprintf(device, "/dev/%s", ptname);
	428	report_device(device, 1);
	429	}
122db55d	430
122db55d	431	fclose(procpt);
612721db KZ	432	}
612721db KZ	433
f61a097b	434	static void report_device(char *device, int quiet)
baaa4479	435	{
612721db KZ	436	int fd;
612721db KZ	437	int ro, ssz, bsz;
bc8b6383 KZ	438	long ra;
bc8b6383 KZ	439	unsigned long long bytes;
569d1dac	440	uint64_t start = 0;
569d1dac	441	struct stat st;
612721db KZ	442
	443	fd = open(device, O_RDONLY \| O_NONBLOCK);
	444	if (fd < 0) {
	445	if (!quiet)
6b515d0b	446	warn(_("cannot open %s"), device);
612721db KZ	447	return;
	448	}
	449
	450	ro = ssz = bsz = 0;
569d1dac	451	ra = 0;
95305cec KZ	452	if (fstat(fd, &st) == 0 && !sysfs_devno_is_wholedisk(st.st_rdev)) {
	453	struct sysfs_cxt cxt;
	454
569d1dac PS	455	if (sysfs_init(&cxt, st.st_rdev, NULL))
	456	err(EXIT_FAILURE,
	457	_("%s: failed to initialize sysfs handler"),
	458	device);
9eaa7292 KZ	459	if (sysfs_read_u64(&cxt, "start", &start))
	460	err(EXIT_FAILURE,
	461	_("%s: failed to read partition start from sysfs"),
	462	device);
569d1dac PS	463	sysfs_deinit(&cxt);
569d1dac PS	464	}
baaa4479 SK	465	if (ioctl(fd, BLKROGET, &ro) == 0 &&
	466	ioctl(fd, BLKRAGET, &ra) == 0 &&
	467	ioctl(fd, BLKSSZGET, &ssz) == 0 &&
	468	ioctl(fd, BLKBSZGET, &bsz) == 0 &&
baaa4479	469	blkdev_get_size(fd, &bytes) == 0) {
569d1dac PS	470	printf("%s %5ld %5d %5d %10ju %15lld %s\n",
569d1dac PS	471	ro ? "ro" : "rw", ra, ssz, bsz, start, bytes, device);
612721db KZ	472	} else {
612721db KZ	473	if (!quiet)
cc4d8d72	474	warnx(_("ioctl error on %s"), device);
612721db	475	}
122db55d	476
122db55d	477	close(fd);
612721db KZ	478	}
612721db KZ	479
16bd8025	480	static void report_header(void)
baaa4479	481	{
bc8b6383	482	printf(_("RO RA SSZ BSZ StartSec Size Device\n"));
612721db	483	}