devmgmt/cmds/getvol.c

/*
 * CDDL HEADER START
 *
 * The contents of this file are subject to the terms of the
 * Common Development and Distribution License, Version 1.0 only
 * (the "License").  You may not use this file except in compliance
 * with the License.
 *
 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
 * or http://www.opensolaris.org/os/licensing.
 * See the License for the specific language governing permissions
 * and limitations under the License.
 *
 * When distributing Covered Code, include this CDDL HEADER in each
 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
 * If applicable, add the following below this CDDL HEADER, with the
 * fields enclosed by brackets "[]" replaced with your own identifying
 * information: Portions Copyright [yyyy] [name of copyright owner]
 *
 * CDDL HEADER END
 */
/*
 * Copyright 2005 Sun Microsystems, Inc.  All rights reserved.
 * Use is subject to license terms.
 */

/*  Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */

/*LINTLIBRARY*/

#pragma ident   "%Z%%M% %I% %E% SMI"

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <signal.h>
#include <sys/types.h>
#include <devmgmt.h>

extern char *optarg;
extern int  optind,
        ckquit,
        ckwidth;

char    *prog;
char    *label, *fsname;
char    *prompt;
int options = 0;
int kpid = (-2);
int signo = SIGKILL;

static void usage(void);

/*
 * Given argv[0], return a pointer to the basename of the program.
 */
static char *
prog_name(char *arg0)
{
    char *str;

    /* first strip trailing '/' characters (exec() allows these!) */
    str = arg0 + strlen(arg0);
    while (str > arg0 && *--str == '/')
        *str = '\0';
    if ((str = strrchr(arg0, '/')) != NULL)
        return (str + 1);
    return (arg0);
}

int
main(int argc, char **argv)
{
    int c, n;

    prog = prog_name(argv[0]);

    while ((c = getopt(argc, argv, "fFownx:l:p:k:s:?QW:")) != EOF) {
        switch (c) {
        case 'Q':
            ckquit = 0;
            break;

        case 'W':
            ckwidth = atol(optarg);
            break;

        case 'f':
            options |= DM_FORMAT;
            break;

        case 'F':
            options |= DM_FORMFS;
            break;

        case 'o':
            options |= DM_OLABEL;
            break;

        case 'n':
            options |= DM_BATCH;
            break;

        case 'w':
            options |= DM_WLABEL;
            break;

        case 'l':
            if (label)
                usage();
            label = optarg;
            break;

        case 'p':
            prompt = optarg;
            break;

        case 'x':
            if (label)
                usage();
            label = optarg;
            options |= DM_ELABEL;
            break;

        case 'k':
            kpid = atol(optarg);
            break;

        case 's':
            signo = atol(optarg);
            break;

        default:
            usage();
        }
    }

    if ((optind+1) != argc)
        usage();

    switch (n = getvol(argv[optind], label, options, prompt)) {
    case 0:
        break;

    case 1:
        (void) fprintf(stderr,
            "%s: ERROR: unable to access device <%s>\n",
            prog, argv[optind]);
        break;

    case 2:
        (void) fprintf(stderr, "%s: ERROR: unknown device <%s>\n",
            prog, argv[optind]);
        break;

    case 3:
        if (kpid > -2)
            (void) kill(kpid, signo);
        break;

    case 4:
        (void) fprintf(stderr, "%s: ERROR: bad label on <%s>\n",
            prog, argv[optind]);
        break;

    default:
        (void) fprintf(stderr, "%s: ERROR: unknown device error\n",
            prog);
        break;
    }

    return (n);
}

static void
usage()
{
    fprintf(stderr,
        "usage: %s [-owfF] [-x extlabel] [-l [fsname],volname] device\n",
        prog);
    fprintf(stderr,
        "usage: %s [-n] [-x extlabel] [-l [fsname],volname] device\n",
        prog);
    exit(1);
}