xref: /freebsd/share/examples/ses/srcs/getnobj.c (revision 43a5ec4eb41567cc92586503212743d89686d78f)
1 /* $FreeBSD$ */
2 /*
3  * Copyright (c) 2000 by Matthew Jacob
4  * All rights reserved.
5  *
6  * Redistribution and use in source and binary forms, with or without
7  * modification, are permitted provided that the following conditions
8  * are met:
9  * 1. Redistributions of source code must retain the above copyright
10  *    notice, this list of conditions, and the following disclaimer,
11  *    without modification, immediately at the beginning of the file.
12  * 2. The name of the author may not be used to endorse or promote products
13  *    derived from this software without specific prior written permission.
14  *
15  * Alternatively, this software may be distributed under the terms of the
16  * the GNU Public License ("GPL").
17  *
18  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
19  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21  * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
22  * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28  * SUCH DAMAGE.
29  *
30  * Matthew Jacob
31  * Feral Software
32  * mjacob@feral.com
33  */
34 
35 #include <unistd.h>
36 #include <stddef.h>
37 #include <stdint.h>
38 #include <stdlib.h>
39 #include <stdio.h>
40 #include <unistd.h>
41 #include <fcntl.h>
42 #include <sys/ioctl.h>
43 #include <cam/scsi/scsi_all.h>
44 #include <cam/scsi/scsi_ses.h>
45 
46 int
47 main(int argc, char **argv)
48 {
49 	unsigned int nobj;
50 	int fd;
51 
52 	while (*++argv != NULL) {
53 		char *name = *argv;
54 		fd = open(name, O_RDONLY);
55 		if (fd < 0) {
56 			perror(name);
57 			continue;
58 		}
59 		if (ioctl(fd, SESIOC_GETNOBJ, (caddr_t) &nobj) < 0) {
60 			perror("SESIOC_GETNOBJ");
61 		} else {
62 			fprintf(stdout, "%s: %d objects\n", name, nobj);
63 		}
64 		close (fd);
65 	}
66 	return (0);
67 }
68