xref: /freebsd/share/examples/ses/srcs/getnobj.c (revision a03411e84728e9b267056fd31c7d1d9d1dc1b01e)
1 /*
2  * Copyright (c) 2000 by Matthew Jacob
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions, and the following disclaimer,
10  *    without modification, immediately at the beginning of the file.
11  * 2. The name of the author may not be used to endorse or promote products
12  *    derived from this software without specific prior written permission.
13  *
14  * Alternatively, this software may be distributed under the terms of the
15  * the GNU Public License ("GPL").
16  *
17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20  * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
21  * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27  * SUCH DAMAGE.
28  *
29  * Matthew Jacob
30  * Feral Software
31  * mjacob@feral.com
32  */
33 
34 #include <unistd.h>
35 #include <stddef.h>
36 #include <stdint.h>
37 #include <stdlib.h>
38 #include <stdio.h>
39 #include <unistd.h>
40 #include <fcntl.h>
41 #include <sys/ioctl.h>
42 #include <cam/scsi/scsi_all.h>
43 #include <cam/scsi/scsi_ses.h>
44 
45 int
46 main(int argc, char **argv)
47 {
48 	unsigned int nobj;
49 	int fd;
50 
51 	while (*++argv != NULL) {
52 		char *name = *argv;
53 		fd = open(name, O_RDONLY);
54 		if (fd < 0) {
55 			perror(name);
56 			continue;
57 		}
58 		if (ioctl(fd, SESIOC_GETNOBJ, (caddr_t) &nobj) < 0) {
59 			perror("SESIOC_GETNOBJ");
60 		} else {
61 			fprintf(stdout, "%s: %d objects\n", name, nobj);
62 		}
63 		close (fd);
64 	}
65 	return (0);
66 }
67