[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(void)
{
	size_t i;

	fputs(USAGE_HEADER, stdout);
	printf(_(
	         " %1$s [-v|-q] commands devices\n"
	         " %1$s --report [devices]\n"
	         " %1$s -h|-V\n"
		), program_invocation_short_name);

	fputs(USAGE_SEPARATOR, stdout);
	puts(  _("Call block device ioctls from the command line."));

	fputs(USAGE_OPTIONS, stdout);
	puts(  _(" -q             quiet mode"));
	puts(  _(" -v             verbose mode"));
	puts(  _("     --report   print report for specified (or all) devices"));
	fputs(USAGE_SEPARATOR, stdout);
	printf(USAGE_HELP_OPTIONS(16));

	fputs(USAGE_SEPARATOR, stdout);
	puts(  _("Available commands:"));
	printf(_(" %-25s get size in 512-byte sectors\n"), "--getsz");
	for (i = 0; i < ARRAY_SIZE(bdcms); i++) {
		if (bdcms[i].argname)
			printf(" %s %-*s %s\n", bdcms[i].name,
				(int)(24 - strlen(bdcms[i].name)),
				bdcms[i].argname, _(bdcms[i].help));
		else
			printf(" %-25s %s\n", bdcms[i].name,
				_(bdcms[i].help));
	}

	printf(USAGE_MAN_TAIL("blockdev(8)"));
	exit(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);
	close_stdout_atexit();

	if (argc < 2) {
		warnx(_("not enough arguments"));
		errtryhelp(EXIT_FAILURE);
	}

	/* -V not together with commands */
	if (!strcmp(argv[1], "-V") || !strcmp(argv[1], "--version"))
		print_version(EXIT_SUCCESS);
	if (!strcmp(argv[1], "-h") || !strcmp(argv[1], "--help"))
		usage();

	/* --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) {
		warnx(_("no device specified"));
		errtryhelp(EXIT_FAILURE);
	}

	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]);
			errtryhelp(EXIT_FAILURE);
		}

		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);
					errtryhelp(EXIT_FAILURE);
				}
				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) {
		dev_t disk;
		struct path_cxt *pc;

		pc = ul_new_sysfs_path(st.st_rdev, NULL, NULL);
		if (pc &&
		    sysfs_blkdev_get_wholedisk(pc, NULL, 0, &disk) == 0 &&
		    disk != st.st_rdev) {

			if (ul_path_read_u64(pc, &start, "start") != 0)
				err(EXIT_FAILURE,
					_("%s: failed to read partition start from sysfs"),
					device);
		}
		ul_unref_path(pc);
	}
	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
9325dbfd	181	static void __attribute__((__noreturn__)) usage(void)
bded204c	182	{
75737ad6	183	size_t i;
9325dbfd	184
a861538c RM	185	fputs(USAGE_HEADER, stdout);
	186	printf(_(
	187	" %1$s [-v\|-q] commands devices\n"
	188	" %1$s --report [devices]\n"
	189	" %1$s -h\|-V\n"
	190	), program_invocation_short_name);
a424171c	191
a861538c RM	192	fputs(USAGE_SEPARATOR, stdout);
	193	puts( _("Call block device ioctls from the command line."));
	194
	195	fputs(USAGE_OPTIONS, stdout);
	196	puts( _(" -q quiet mode"));
	197	puts( _(" -v verbose mode"));
	198	puts( _(" --report print report for specified (or all) devices"));
	199	fputs(USAGE_SEPARATOR, stdout);
f45f3ec3	200	printf(USAGE_HELP_OPTIONS(16));
a861538c RM	201
	202	fputs(USAGE_SEPARATOR, stdout);
	203	puts( _("Available commands:"));
	204	printf(_(" %-25s get size in 512-byte sectors\n"), "--getsz");
515422fd	205	for (i = 0; i < ARRAY_SIZE(bdcms); i++) {
eb63b9b8	206	if (bdcms[i].argname)
a861538c	207	printf(" %s %-*s %s\n", bdcms[i].name,
bded204c SK	208	(int)(24 - strlen(bdcms[i].name)),
bded204c SK	209	bdcms[i].argname, _(bdcms[i].help));
a424171c	210	else
a861538c	211	printf(" %-25s %s\n", bdcms[i].name,
bded204c	212	_(bdcms[i].help));
eb63b9b8	213	}
9325dbfd	214
43c960c8	215	printf(USAGE_MAN_TAIL("blockdev(8)"));
9325dbfd	216	exit(EXIT_SUCCESS);
eb63b9b8 KZ	217	}
eb63b9b8 KZ	218
baaa4479 SK	219	static int find_cmd(char *s)
baaa4479 SK	220	{
75737ad6	221	size_t j;
eb63b9b8	222
515422fd	223	for (j = 0; j < ARRAY_SIZE(bdcms); j++)
eb63b9b8 KZ	224	if (!strcmp(s, bdcms[j].name))
	225	return j;
	226	return -1;
	227	}
	228
f61a097b WG	229	static void do_commands(int fd, char **argv, int d);
	230	static void report_header(void);
	231	static void report_device(char *device, int quiet);
	232	static void report_all_devices(void);
eb63b9b8	233
baaa4479 SK	234	int main(int argc, char **argv)
baaa4479 SK	235	{
eb63b9b8	236	int fd, d, j, k;
eb63b9b8	237
eb63b9b8 KZ	238	setlocale(LC_ALL, "");
	239	bindtextdomain(PACKAGE, LOCALEDIR);
	240	textdomain(PACKAGE);
2c308875	241	close_stdout_atexit();
eb63b9b8	242
9325dbfd RM	243	if (argc < 2) {
	244	warnx(_("not enough arguments"));
	245	errtryhelp(EXIT_FAILURE);
	246	}
eb63b9b8 KZ	247
eb63b9b8 KZ	248	/* -V not together with commands */
2c308875 KZ	249	if (!strcmp(argv[1], "-V") \|\| !strcmp(argv[1], "--version"))
2c308875 KZ	250	print_version(EXIT_SUCCESS);
bded204c	251	if (!strcmp(argv[1], "-h") \|\| !strcmp(argv[1], "--help"))
9325dbfd	252	usage();
eb63b9b8	253
612721db KZ	254	/* --report not together with other commands */
	255	if (!strcmp(argv[1], "--report")) {
	256	report_header();
	257	if (argc > 2) {
	258	for (d = 2; d < argc; d++)
	259	report_device(argv[d], 0);
	260	} else {
	261	report_all_devices();
	262	}
6b515d0b	263	return EXIT_SUCCESS;
612721db KZ	264	}
612721db KZ	265
eb63b9b8 KZ	266	/* do each of the commands on each of the devices */
	267	/* devices start after last command */
	268	for (d = 1; d < argc; d++) {
	269	j = find_cmd(argv[d]);
	270	if (j >= 0) {
c3f62be7	271	if (bdcms[j].argname)
eb63b9b8 KZ	272	d++;
	273	continue;
	274	}
c129767e KZ	275	if (!strcmp(argv[d], "--getsz"))
c129767e KZ	276	continue;
eb63b9b8 KZ	277	if (!strcmp(argv[d], "--")) {
	278	d++;
	279	break;
	280	}
	281	if (argv[d][0] != '-')
	282	break;
	283	}
	284
9325dbfd RM	285	if (d >= argc) {
	286	warnx(_("no device specified"));
	287	errtryhelp(EXIT_FAILURE);
	288	}
eb63b9b8 KZ	289
	290	for (k = d; k < argc; k++) {
	291	fd = open(argv[k], O_RDONLY, 0);
6b515d0b SK	292	if (fd < 0)
6b515d0b SK	293	err(EXIT_FAILURE, _("cannot open %s"), argv[k]);
eb63b9b8	294	do_commands(fd, argv, d);
e8f26419	295	close(fd);
eb63b9b8	296	}
6b515d0b	297	return EXIT_SUCCESS;
eb63b9b8 KZ	298	}
eb63b9b8 KZ	299
f61a097b	300	static void do_commands(int fd, char **argv, int d)
baaa4479	301	{
eb63b9b8	302	int res, i, j;
15705de0 KZ	303	int iarg = 0;
	304	unsigned int uarg = 0;
	305	unsigned short huarg = 0;
	306	long larg = 0;
	307	long long llarg = 0;
	308	unsigned long lu = 0;
	309	unsigned long long llu = 0;
eb63b9b8 KZ	310	int verbose = 0;
	311
	312	for (i = 1; i < d; i++) {
	313	if (!strcmp(argv[i], "-v")) {
	314	verbose = 1;
	315	continue;
baaa4479	316	}
eb63b9b8 KZ	317	if (!strcmp(argv[i], "-q")) {
	318	verbose = 0;
	319	continue;
	320	}
	321
c129767e	322	if (!strcmp(argv[i], "--getsz")) {
bc8b6383	323	res = blkdev_get_sectors(fd, &llu);
c129767e	324	if (res == 0)
bc8b6383	325	printf("%lld\n", llu);
c129767e	326	else
baaa4479 SK	327	errx(EXIT_FAILURE,
baaa4479 SK	328	_("could not get device size"));
c129767e KZ	329	continue;
	330	}
	331
eb63b9b8 KZ	332	j = find_cmd(argv[i]);
eb63b9b8 KZ	333	if (j == -1) {
cc4d8d72	334	warnx(_("Unknown command: %s"), argv[i]);
9325dbfd	335	errtryhelp(EXIT_FAILURE);
eb63b9b8 KZ	336	}
eb63b9b8 KZ	337
baaa4479	338	switch (bdcms[j].argtype) {
eb63b9b8	339	default:
c3f62be7	340	case ARG_NONE:
eb63b9b8 KZ	341	res = ioctl(fd, bdcms[j].ioc, 0);
eb63b9b8 KZ	342	break;
726fa24e KZ	343	case ARG_USHRT:
	344	huarg = bdcms[j].argval;
	345	res = ioctl(fd, bdcms[j].ioc, &huarg);
	346	break;
c3f62be7 KZ	347	case ARG_INT:
c3f62be7 KZ	348	if (bdcms[j].argname) {
baaa4479	349	if (i == d - 1) {
cc4d8d72	350	warnx(_("%s requires an argument"),
baaa4479	351	bdcms[j].name);
9325dbfd	352	errtryhelp(EXIT_FAILURE);
c3f62be7 KZ	353	}
	354	iarg = atoi(argv[++i]);
	355	} else
	356	iarg = bdcms[j].argval;
	357
	358	res = bdcms[j].flags & FL_NOPTR ?
baaa4479 SK	359	ioctl(fd, bdcms[j].ioc, iarg) :
baaa4479 SK	360	ioctl(fd, bdcms[j].ioc, &iarg);
eb63b9b8	361	break;
726fa24e KZ	362	case ARG_UINT:
	363	uarg = bdcms[j].argval;
	364	res = ioctl(fd, bdcms[j].ioc, &uarg);
	365	break;
c3f62be7	366	case ARG_LONG:
eb63b9b8 KZ	367	larg = bdcms[j].argval;
	368	res = ioctl(fd, bdcms[j].ioc, &larg);
	369	break;
c3f62be7	370	case ARG_LLONG:
c129767e KZ	371	llarg = bdcms[j].argval;
	372	res = ioctl(fd, bdcms[j].ioc, &llarg);
	373	break;
c3f62be7	374	case ARG_ULONG:
1dea05a8 KZ	375	lu = bdcms[j].argval;
	376	res = ioctl(fd, bdcms[j].ioc, &lu);
	377	break;
c3f62be7	378	case ARG_ULLONG:
1dea05a8 KZ	379	llu = bdcms[j].argval;
	380	res = ioctl(fd, bdcms[j].ioc, &llu);
	381	break;
eb63b9b8	382	}
c3f62be7	383
eb63b9b8	384	if (res == -1) {
338a6bc5	385	warn(_("ioctl error on %s"), bdcms[j].iocname);
eb63b9b8	386	if (verbose)
65b27d36	387	printf(_("%s failed.\n"), _(bdcms[j].help));
6b515d0b	388	exit(EXIT_FAILURE);
eb63b9b8	389	}
c3f62be7 KZ	390
	391	if (bdcms[j].argtype == ARG_NONE \|\|
	392	(bdcms[j].flags & FL_NORESULT)) {
eb63b9b8	393	if (verbose)
c3f62be7 KZ	394	printf(_("%s succeeded.\n"), _(bdcms[j].help));
	395	continue;
	396	}
	397
	398	if (verbose)
	399	printf("%s: ", _(bdcms[j].help));
	400
baaa4479	401	switch (bdcms[j].argtype) {
726fa24e KZ	402	case ARG_USHRT:
	403	printf("%hu\n", huarg);
	404	break;
c3f62be7 KZ	405	case ARG_INT:
c3f62be7 KZ	406	printf("%d\n", iarg);
eb63b9b8	407	break;
726fa24e KZ	408	case ARG_UINT:
	409	printf("%u\n", uarg);
	410	break;
c3f62be7 KZ	411	case ARG_LONG:
c3f62be7 KZ	412	printf("%ld\n", larg);
c129767e	413	break;
c3f62be7 KZ	414	case ARG_LLONG:
c3f62be7 KZ	415	printf("%lld\n", llarg);
1dea05a8	416	break;
c3f62be7 KZ	417	case ARG_ULONG:
c3f62be7 KZ	418	printf("%lu\n", lu);
1dea05a8	419	break;
c3f62be7 KZ	420	case ARG_ULLONG:
c3f62be7 KZ	421	printf("%llu\n", llu);
eb63b9b8 KZ	422	break;
	423	}
	424	}
	425	}
612721db	426
f61a097b	427	static void report_all_devices(void)
baaa4479	428	{
612721db KZ	429	FILE *procpt;
612721db KZ	430	char line[200];
657d9adb	431	char ptname[200 + 1];
612721db KZ	432	char device[210];
	433	int ma, mi, sz;
	434
14c76d8b	435	procpt = fopen(_PATH_PROC_PARTITIONS, "r");
cc4d8d72	436	if (!procpt)
14c76d8b	437	err(EXIT_FAILURE, _("cannot open %s"), _PATH_PROC_PARTITIONS);
612721db KZ	438
612721db KZ	439	while (fgets(line, sizeof(line), procpt)) {
baaa4479 SK	440	if (sscanf(line, " %d %d %d %200[^\n ]",
baaa4479 SK	441	&ma, &mi, &sz, ptname) != 4)
612721db KZ	442	continue;
	443
	444	sprintf(device, "/dev/%s", ptname);
	445	report_device(device, 1);
	446	}
122db55d	447
122db55d	448	fclose(procpt);
612721db KZ	449	}
612721db KZ	450
f61a097b	451	static void report_device(char *device, int quiet)
baaa4479	452	{
612721db KZ	453	int fd;
612721db KZ	454	int ro, ssz, bsz;
bc8b6383 KZ	455	long ra;
bc8b6383 KZ	456	unsigned long long bytes;
569d1dac	457	uint64_t start = 0;
569d1dac	458	struct stat st;
612721db KZ	459
	460	fd = open(device, O_RDONLY \| O_NONBLOCK);
	461	if (fd < 0) {
	462	if (!quiet)
6b515d0b	463	warn(_("cannot open %s"), device);
612721db KZ	464	return;
	465	}
	466
	467	ro = ssz = bsz = 0;
569d1dac	468	ra = 0;
345ddd28 KZ	469	if (fstat(fd, &st) == 0) {
	470	dev_t disk;
	471	struct path_cxt *pc;
	472
	473	pc = ul_new_sysfs_path(st.st_rdev, NULL, NULL);
	474	if (pc &&
	475	sysfs_blkdev_get_wholedisk(pc, NULL, 0, &disk) == 0 &&
	476	disk != st.st_rdev) {
	477
	478	if (ul_path_read_u64(pc, &start, "start") != 0)
	479	err(EXIT_FAILURE,
	480	_("%s: failed to read partition start from sysfs"),
	481	device);
	482	}
	483	ul_unref_path(pc);
569d1dac	484	}
baaa4479 SK	485	if (ioctl(fd, BLKROGET, &ro) == 0 &&
	486	ioctl(fd, BLKRAGET, &ra) == 0 &&
	487	ioctl(fd, BLKSSZGET, &ssz) == 0 &&
	488	ioctl(fd, BLKBSZGET, &bsz) == 0 &&
baaa4479	489	blkdev_get_size(fd, &bytes) == 0) {
569d1dac PS	490	printf("%s %5ld %5d %5d %10ju %15lld %s\n",
569d1dac PS	491	ro ? "ro" : "rw", ra, ssz, bsz, start, bytes, device);
612721db KZ	492	} else {
612721db KZ	493	if (!quiet)
cc4d8d72	494	warnx(_("ioctl error on %s"), device);
612721db	495	}
122db55d	496
122db55d	497	close(fd);
612721db KZ	498	}
612721db KZ	499
16bd8025	500	static void report_header(void)
baaa4479	501	{
bc8b6383	502	printf(_("RO RA SSZ BSZ StartSec Size Device\n"));
612721db	503	}