[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 "strutils.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(BLKGETDISKSEQ),
		.name = "--getdiskseq",
		.argtype = ARG_ULLONG,
		.argval = -1,
		.help = N_("get disk sequence number")
	},{
		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 = strtos32_or_err(argv[++i], _("failed to parse command argument"));
			} 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;

		snprintf(device, sizeof(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;
	char start_str[16] = { "\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)
				/* TRANSLATORS: Start sector not available. Max. 15 letters. */
				snprintf(start_str, sizeof(start_str), "%15s", _("N/A"));
		}
		ul_unref_path(pc);
	}
	if (!*start_str)
		snprintf(start_str, sizeof(start_str), "%15ju", start);

	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 %s %15lld   %s\n",
			ro ? "ro" : "rw", ra, ssz, bsz, start_str, 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"
40775268	19	#include "strutils.h"
569d1dac	20	#include "sysfs.h"
612721db	21
eb63b9b8	22	struct bdc {
c3f62be7 KZ	23	long ioc; /* ioctl code */
	24	const char iocname; / ioctl name (e.g. BLKROSET) */
	25	long argval; /* default argument */
	26
	27	const char name; / --setfoo */
	28	const char argname; / argument name or NULL */
	29
	30	const char *help;
	31
	32	int argtype;
	33	int flags;
	34	};
	35
	36	/* command flags */
	37	enum {
	38	FL_NOPTR = (1 << 1), /* does not assume pointer (ARG_INT only)*/
	39	FL_NORESULT = (1 << 2) /* does not return any data */
	40	};
	41
	42	/* ioctl argument types */
	43	enum {
	44	ARG_NONE,
726fa24e	45	ARG_USHRT,
c3f62be7	46	ARG_INT,
726fa24e	47	ARG_UINT,
c3f62be7 KZ	48	ARG_LONG,
	49	ARG_ULONG,
	50	ARG_LLONG,
	51	ARG_ULLONG
	52	};
	53
	54	#define IOCTL_ENTRY( io ) .ioc = io, .iocname = # io
	55
00239f33	56	static const struct bdc bdcms[] =
c3f62be7 KZ	57	{
	58	{
	59	IOCTL_ENTRY(BLKROSET),
	60	.name = "--setro",
	61	.argtype = ARG_INT,
	62	.argval = 1,
	63	.flags = FL_NORESULT,
	64	.help = N_("set read-only")
	65	},{
	66	IOCTL_ENTRY(BLKROSET),
	67	.name = "--setrw",
	68	.argtype = ARG_INT,
	69	.argval = 0,
	70	.flags = FL_NORESULT,
	71	.help = N_("set read-write")
	72	},{
	73	IOCTL_ENTRY(BLKROGET),
	74	.name = "--getro",
	75	.argtype = ARG_INT,
	76	.argval = -1,
	77	.help = N_("get read-only")
1519ab5f KZ	78	},{
	79	IOCTL_ENTRY(BLKDISCARDZEROES),
	80	.name = "--getdiscardzeroes",
	81	.argtype = ARG_UINT,
	82	.argval = -1,
	83	.help = N_("get discard zeroes support status")
c3f62be7 KZ	84	},{
	85	IOCTL_ENTRY(BLKSSZGET),
	86	.name = "--getss",
	87	.argtype = ARG_INT,
	88	.argval = -1,
d965d63f KZ	89	.help = N_("get logical block (sector) size")
	90	},{
	91	IOCTL_ENTRY(BLKPBSZGET),
	92	.name = "--getpbsz",
	93	.argtype = ARG_UINT,
	94	.argval = -1,
	95	.help = N_("get physical block (sector) size")
	96	},{
	97	IOCTL_ENTRY(BLKIOMIN),
	98	.name = "--getiomin",
	99	.argtype = ARG_UINT,
	100	.argval = -1,
	101	.help = N_("get minimum I/O size")
	102	},{
	103	IOCTL_ENTRY(BLKIOOPT),
	104	.name = "--getioopt",
	105	.argtype = ARG_UINT,
	106	.argval = -1,
	107	.help = N_("get optimal I/O size")
	108	},{
	109	IOCTL_ENTRY(BLKALIGNOFF),
	110	.name = "--getalignoff",
	111	.argtype = ARG_INT,
ed98508a	112	.argval = -1,
455fdf4a	113	.help = N_("get alignment offset in bytes")
d965d63f KZ	114	},{
	115	IOCTL_ENTRY(BLKSECTGET),
	116	.name = "--getmaxsect",
	117	.argtype = ARG_USHRT,
	118	.argval = -1,
	119	.help = N_("get max sectors per request")
c3f62be7 KZ	120	},{
	121	IOCTL_ENTRY(BLKBSZGET),
	122	.name = "--getbsz",
	123	.argtype = ARG_INT,
	124	.argval = -1,
	125	.help = N_("get blocksize")
39d2e706 KZ	126	},{
	127	IOCTL_ENTRY(BLKBSZSET),
	128	.name = "--setbsz",
	129	.argname = "<bytes>",
	130	.argtype = ARG_INT,
	131	.flags = FL_NORESULT,
7ab32ae6	132	.help = N_("set blocksize on file descriptor opening the block device")
c3f62be7 KZ	133	},{
	134	IOCTL_ENTRY(BLKGETSIZE),
	135	.name = "--getsize",
	136	.argtype = ARG_ULONG,
	137	.argval = -1,
455fdf4a	138	.help = N_("get 32-bit sector count (deprecated, use --getsz)")
c3f62be7 KZ	139	},{
	140	IOCTL_ENTRY(BLKGETSIZE64),
	141	.name = "--getsize64",
	142	.argtype = ARG_ULLONG,
	143	.argval = -1,
	144	.help = N_("get size in bytes")
	145	},{
	146	IOCTL_ENTRY(BLKRASET),
	147	.name = "--setra",
455fdf4a	148	.argname = "<sectors>",
c3f62be7 KZ	149	.argtype = ARG_INT,
	150	.flags = FL_NOPTR \| FL_NORESULT,
	151	.help = N_("set readahead")
	152	},{
	153	IOCTL_ENTRY(BLKRAGET),
	154	.name = "--getra",
	155	.argtype = ARG_LONG,
	156	.argval = -1,
	157	.help = N_("get readahead")
	158	},{
	159	IOCTL_ENTRY(BLKFRASET),
	160	.name = "--setfra",
455fdf4a	161	.argname = "<sectors>",
c3f62be7 KZ	162	.argtype = ARG_INT,
	163	.flags = FL_NOPTR \| FL_NORESULT,
	164	.help = N_("set filesystem readahead")
	165	},{
	166	IOCTL_ENTRY(BLKFRAGET),
	167	.name = "--getfra",
	168	.argtype = ARG_LONG,
	169	.argval = -1,
	170	.help = N_("get filesystem readahead")
c10adc20 TW	171	},{
	172	IOCTL_ENTRY(BLKGETDISKSEQ),
	173	.name = "--getdiskseq",
	174	.argtype = ARG_ULLONG,
	175	.argval = -1,
	176	.help = N_("get disk sequence number")
c3f62be7 KZ	177	},{
	178	IOCTL_ENTRY(BLKFLSBUF),
	179	.name = "--flushbufs",
	180	.help = N_("flush buffers")
	181	},{
	182	IOCTL_ENTRY(BLKRRPART),
	183	.name = "--rereadpt",
	184	.help = N_("reread partition table")
	185	}
eb63b9b8 KZ	186	};
eb63b9b8 KZ	187
9325dbfd	188	static void __attribute__((__noreturn__)) usage(void)
bded204c	189	{
75737ad6	190	size_t i;
9325dbfd	191
a861538c RM	192	fputs(USAGE_HEADER, stdout);
	193	printf(_(
	194	" %1$s [-v\|-q] commands devices\n"
	195	" %1$s --report [devices]\n"
	196	" %1$s -h\|-V\n"
	197	), program_invocation_short_name);
a424171c	198
a861538c RM	199	fputs(USAGE_SEPARATOR, stdout);
	200	puts( _("Call block device ioctls from the command line."));
	201
	202	fputs(USAGE_OPTIONS, stdout);
	203	puts( _(" -q quiet mode"));
	204	puts( _(" -v verbose mode"));
	205	puts( _(" --report print report for specified (or all) devices"));
	206	fputs(USAGE_SEPARATOR, stdout);
f45f3ec3	207	printf(USAGE_HELP_OPTIONS(16));
a861538c RM	208
	209	fputs(USAGE_SEPARATOR, stdout);
	210	puts( _("Available commands:"));
	211	printf(_(" %-25s get size in 512-byte sectors\n"), "--getsz");
515422fd	212	for (i = 0; i < ARRAY_SIZE(bdcms); i++) {
eb63b9b8	213	if (bdcms[i].argname)
a861538c	214	printf(" %s %-*s %s\n", bdcms[i].name,
bded204c SK	215	(int)(24 - strlen(bdcms[i].name)),
bded204c SK	216	bdcms[i].argname, _(bdcms[i].help));
a424171c	217	else
a861538c	218	printf(" %-25s %s\n", bdcms[i].name,
bded204c	219	_(bdcms[i].help));
eb63b9b8	220	}
9325dbfd	221
43c960c8	222	printf(USAGE_MAN_TAIL("blockdev(8)"));
9325dbfd	223	exit(EXIT_SUCCESS);
eb63b9b8 KZ	224	}
eb63b9b8 KZ	225
baaa4479 SK	226	static int find_cmd(char *s)
baaa4479 SK	227	{
75737ad6	228	size_t j;
eb63b9b8	229
515422fd	230	for (j = 0; j < ARRAY_SIZE(bdcms); j++)
eb63b9b8 KZ	231	if (!strcmp(s, bdcms[j].name))
	232	return j;
	233	return -1;
	234	}
	235
f61a097b WG	236	static void do_commands(int fd, char **argv, int d);
	237	static void report_header(void);
	238	static void report_device(char *device, int quiet);
	239	static void report_all_devices(void);
eb63b9b8	240
baaa4479 SK	241	int main(int argc, char **argv)
baaa4479 SK	242	{
eb63b9b8	243	int fd, d, j, k;
eb63b9b8	244
eb63b9b8 KZ	245	setlocale(LC_ALL, "");
	246	bindtextdomain(PACKAGE, LOCALEDIR);
	247	textdomain(PACKAGE);
2c308875	248	close_stdout_atexit();
eb63b9b8	249
9325dbfd RM	250	if (argc < 2) {
	251	warnx(_("not enough arguments"));
	252	errtryhelp(EXIT_FAILURE);
	253	}
eb63b9b8 KZ	254
eb63b9b8 KZ	255	/* -V not together with commands */
2c308875 KZ	256	if (!strcmp(argv[1], "-V") \|\| !strcmp(argv[1], "--version"))
2c308875 KZ	257	print_version(EXIT_SUCCESS);
bded204c	258	if (!strcmp(argv[1], "-h") \|\| !strcmp(argv[1], "--help"))
9325dbfd	259	usage();
eb63b9b8	260
612721db KZ	261	/* --report not together with other commands */
	262	if (!strcmp(argv[1], "--report")) {
	263	report_header();
	264	if (argc > 2) {
	265	for (d = 2; d < argc; d++)
	266	report_device(argv[d], 0);
	267	} else {
	268	report_all_devices();
	269	}
6b515d0b	270	return EXIT_SUCCESS;
612721db KZ	271	}
612721db KZ	272
eb63b9b8 KZ	273	/* do each of the commands on each of the devices */
	274	/* devices start after last command */
	275	for (d = 1; d < argc; d++) {
	276	j = find_cmd(argv[d]);
	277	if (j >= 0) {
c3f62be7	278	if (bdcms[j].argname)
eb63b9b8 KZ	279	d++;
	280	continue;
	281	}
c129767e KZ	282	if (!strcmp(argv[d], "--getsz"))
c129767e KZ	283	continue;
eb63b9b8 KZ	284	if (!strcmp(argv[d], "--")) {
	285	d++;
	286	break;
	287	}
	288	if (argv[d][0] != '-')
	289	break;
	290	}
	291
9325dbfd RM	292	if (d >= argc) {
	293	warnx(_("no device specified"));
	294	errtryhelp(EXIT_FAILURE);
	295	}
eb63b9b8 KZ	296
	297	for (k = d; k < argc; k++) {
	298	fd = open(argv[k], O_RDONLY, 0);
6b515d0b SK	299	if (fd < 0)
6b515d0b SK	300	err(EXIT_FAILURE, _("cannot open %s"), argv[k]);
eb63b9b8	301	do_commands(fd, argv, d);
e8f26419	302	close(fd);
eb63b9b8	303	}
6b515d0b	304	return EXIT_SUCCESS;
eb63b9b8 KZ	305	}
eb63b9b8 KZ	306
f61a097b	307	static void do_commands(int fd, char **argv, int d)
baaa4479	308	{
eb63b9b8	309	int res, i, j;
15705de0 KZ	310	int iarg = 0;
	311	unsigned int uarg = 0;
	312	unsigned short huarg = 0;
	313	long larg = 0;
	314	long long llarg = 0;
	315	unsigned long lu = 0;
	316	unsigned long long llu = 0;
eb63b9b8 KZ	317	int verbose = 0;
	318
	319	for (i = 1; i < d; i++) {
	320	if (!strcmp(argv[i], "-v")) {
	321	verbose = 1;
	322	continue;
baaa4479	323	}
eb63b9b8 KZ	324	if (!strcmp(argv[i], "-q")) {
	325	verbose = 0;
	326	continue;
	327	}
	328
c129767e	329	if (!strcmp(argv[i], "--getsz")) {
bc8b6383	330	res = blkdev_get_sectors(fd, &llu);
c129767e	331	if (res == 0)
bc8b6383	332	printf("%lld\n", llu);
c129767e	333	else
baaa4479 SK	334	errx(EXIT_FAILURE,
baaa4479 SK	335	_("could not get device size"));
c129767e KZ	336	continue;
	337	}
	338
eb63b9b8 KZ	339	j = find_cmd(argv[i]);
eb63b9b8 KZ	340	if (j == -1) {
cc4d8d72	341	warnx(_("Unknown command: %s"), argv[i]);
9325dbfd	342	errtryhelp(EXIT_FAILURE);
eb63b9b8 KZ	343	}
eb63b9b8 KZ	344
baaa4479	345	switch (bdcms[j].argtype) {
eb63b9b8	346	default:
c3f62be7	347	case ARG_NONE:
eb63b9b8 KZ	348	res = ioctl(fd, bdcms[j].ioc, 0);
eb63b9b8 KZ	349	break;
726fa24e KZ	350	case ARG_USHRT:
	351	huarg = bdcms[j].argval;
	352	res = ioctl(fd, bdcms[j].ioc, &huarg);
	353	break;
c3f62be7 KZ	354	case ARG_INT:
c3f62be7 KZ	355	if (bdcms[j].argname) {
baaa4479	356	if (i == d - 1) {
cc4d8d72	357	warnx(_("%s requires an argument"),
baaa4479	358	bdcms[j].name);
9325dbfd	359	errtryhelp(EXIT_FAILURE);
c3f62be7	360	}
40775268	361	iarg = strtos32_or_err(argv[++i], _("failed to parse command argument"));
c3f62be7 KZ	362	} else
	363	iarg = bdcms[j].argval;
	364
	365	res = bdcms[j].flags & FL_NOPTR ?
baaa4479 SK	366	ioctl(fd, bdcms[j].ioc, iarg) :
baaa4479 SK	367	ioctl(fd, bdcms[j].ioc, &iarg);
eb63b9b8	368	break;
726fa24e KZ	369	case ARG_UINT:
	370	uarg = bdcms[j].argval;
	371	res = ioctl(fd, bdcms[j].ioc, &uarg);
	372	break;
c3f62be7	373	case ARG_LONG:
eb63b9b8 KZ	374	larg = bdcms[j].argval;
	375	res = ioctl(fd, bdcms[j].ioc, &larg);
	376	break;
c3f62be7	377	case ARG_LLONG:
c129767e KZ	378	llarg = bdcms[j].argval;
	379	res = ioctl(fd, bdcms[j].ioc, &llarg);
	380	break;
c3f62be7	381	case ARG_ULONG:
1dea05a8 KZ	382	lu = bdcms[j].argval;
	383	res = ioctl(fd, bdcms[j].ioc, &lu);
	384	break;
c3f62be7	385	case ARG_ULLONG:
1dea05a8 KZ	386	llu = bdcms[j].argval;
	387	res = ioctl(fd, bdcms[j].ioc, &llu);
	388	break;
eb63b9b8	389	}
c3f62be7	390
eb63b9b8	391	if (res == -1) {
338a6bc5	392	warn(_("ioctl error on %s"), bdcms[j].iocname);
eb63b9b8	393	if (verbose)
65b27d36	394	printf(_("%s failed.\n"), _(bdcms[j].help));
6b515d0b	395	exit(EXIT_FAILURE);
eb63b9b8	396	}
c3f62be7 KZ	397
	398	if (bdcms[j].argtype == ARG_NONE \|\|
	399	(bdcms[j].flags & FL_NORESULT)) {
eb63b9b8	400	if (verbose)
c3f62be7 KZ	401	printf(_("%s succeeded.\n"), _(bdcms[j].help));
	402	continue;
	403	}
	404
	405	if (verbose)
	406	printf("%s: ", _(bdcms[j].help));
	407
baaa4479	408	switch (bdcms[j].argtype) {
726fa24e KZ	409	case ARG_USHRT:
	410	printf("%hu\n", huarg);
	411	break;
c3f62be7 KZ	412	case ARG_INT:
c3f62be7 KZ	413	printf("%d\n", iarg);
eb63b9b8	414	break;
726fa24e KZ	415	case ARG_UINT:
	416	printf("%u\n", uarg);
	417	break;
c3f62be7 KZ	418	case ARG_LONG:
c3f62be7 KZ	419	printf("%ld\n", larg);
c129767e	420	break;
c3f62be7 KZ	421	case ARG_LLONG:
c3f62be7 KZ	422	printf("%lld\n", llarg);
1dea05a8	423	break;
c3f62be7 KZ	424	case ARG_ULONG:
c3f62be7 KZ	425	printf("%lu\n", lu);
1dea05a8	426	break;
c3f62be7 KZ	427	case ARG_ULLONG:
c3f62be7 KZ	428	printf("%llu\n", llu);
eb63b9b8 KZ	429	break;
	430	}
	431	}
	432	}
612721db	433
f61a097b	434	static void report_all_devices(void)
baaa4479	435	{
612721db KZ	436	FILE *procpt;
612721db KZ	437	char line[200];
657d9adb	438	char ptname[200 + 1];
612721db KZ	439	char device[210];
	440	int ma, mi, sz;
	441
14c76d8b	442	procpt = fopen(_PATH_PROC_PARTITIONS, "r");
cc4d8d72	443	if (!procpt)
14c76d8b	444	err(EXIT_FAILURE, _("cannot open %s"), _PATH_PROC_PARTITIONS);
612721db KZ	445
612721db KZ	446	while (fgets(line, sizeof(line), procpt)) {
baaa4479 SK	447	if (sscanf(line, " %d %d %d %200[^\n ]",
baaa4479 SK	448	&ma, &mi, &sz, ptname) != 4)
612721db KZ	449	continue;
612721db KZ	450
26266436	451	snprintf(device, sizeof(device), "/dev/%s", ptname);
612721db KZ	452	report_device(device, 1);
612721db KZ	453	}
122db55d	454
122db55d	455	fclose(procpt);
612721db KZ	456	}
612721db KZ	457
f61a097b	458	static void report_device(char *device, int quiet)
baaa4479	459	{
612721db KZ	460	int fd;
612721db KZ	461	int ro, ssz, bsz;
bc8b6383 KZ	462	long ra;
bc8b6383 KZ	463	unsigned long long bytes;
569d1dac	464	uint64_t start = 0;
d73a7184	465	char start_str[16] = { "\0" };
569d1dac	466	struct stat st;
612721db KZ	467
	468	fd = open(device, O_RDONLY \| O_NONBLOCK);
	469	if (fd < 0) {
	470	if (!quiet)
6b515d0b	471	warn(_("cannot open %s"), device);
612721db KZ	472	return;
	473	}
	474
	475	ro = ssz = bsz = 0;
569d1dac	476	ra = 0;
345ddd28 KZ	477	if (fstat(fd, &st) == 0) {
	478	dev_t disk;
	479	struct path_cxt *pc;
	480
	481	pc = ul_new_sysfs_path(st.st_rdev, NULL, NULL);
	482	if (pc &&
	483	sysfs_blkdev_get_wholedisk(pc, NULL, 0, &disk) == 0 &&
	484	disk != st.st_rdev) {
	485
	486	if (ul_path_read_u64(pc, &start, "start") != 0)
d73a7184	487	/* TRANSLATORS: Start sector not available. Max. 15 letters. */
26266436	488	snprintf(start_str, sizeof(start_str), "%15s", _("N/A"));
345ddd28 KZ	489	}
345ddd28 KZ	490	ul_unref_path(pc);
569d1dac	491	}
9147d2ad	492	if (!*start_str)
26266436	493	snprintf(start_str, sizeof(start_str), "%15ju", start);
9147d2ad	494
baaa4479 SK	495	if (ioctl(fd, BLKROGET, &ro) == 0 &&
	496	ioctl(fd, BLKRAGET, &ra) == 0 &&
	497	ioctl(fd, BLKSSZGET, &ssz) == 0 &&
	498	ioctl(fd, BLKBSZGET, &bsz) == 0 &&
baaa4479	499	blkdev_get_size(fd, &bytes) == 0) {
c4a543ff	500	printf("%s %5ld %5d %5d %s %15lld %s\n",
9147d2ad	501	ro ? "ro" : "rw", ra, ssz, bsz, start_str, bytes, device);
612721db KZ	502	} else {
612721db KZ	503	if (!quiet)
cc4d8d72	504	warnx(_("ioctl error on %s"), device);
612721db	505	}
122db55d	506
122db55d	507	close(fd);
612721db KZ	508	}
612721db KZ	509
16bd8025	510	static void report_header(void)
baaa4479	511	{
d73a7184	512	printf(_("RO RA SSZ BSZ StartSec Size Device\n"));
612721db	513	}