1 /*
2 * This file and its contents are supplied under the terms of the
3 * Common Development and Distribution License ("CDDL"), version 1.0.
4 * You may only use this file in accordance with the terms of version
5 * 1.0 of the CDDL.
6 *
7 * A full copy of the text of the CDDL should have accompanied this
8 * source. A copy of the CDDL is also available via the Internet at
9 * http://www.illumos.org/license/CDDL.
10 */
11
12 /*
13 * Copyright 2019, Joyent, Inc.
14 */
15
16 /*
17 * Verify that we can grab a basic exclusive lock and then if we try to get
18 * another lock it fails. Regardless of whether we do so through open(2) or
19 * ioctl(2).
20 */
21
22 #include <err.h>
23 #include <stdlib.h>
24 #include <sys/types.h>
25 #include <sys/stat.h>
26 #include <fcntl.h>
27 #include <strings.h>
28 #include <unistd.h>
29 #include <errno.h>
30 #include <sys/debug.h>
31
32 #include <sys/usb/clients/ccid/uccid.h>
33
34 int
main(int argc,char * argv[])35 main(int argc, char *argv[])
36 {
37 int fd, ret;
38 uccid_cmd_txn_begin_t begin;
39 uccid_cmd_txn_end_t end;
40
41 if (argc != 2) {
42 errx(EXIT_FAILURE, "missing required ccid path");
43 }
44
45 if ((fd = open(argv[1], O_RDWR)) < 0) {
46 err(EXIT_FAILURE, "failed to open %s", argv[1]);
47 }
48
49 bzero(&begin, sizeof (begin));
50 bzero(&end, sizeof (end));
51
52 begin.uct_version = UCCID_CURRENT_VERSION;
53 end.uct_version = UCCID_CURRENT_VERSION;
54 end.uct_flags = UCCID_TXN_END_RELEASE;
55
56 if (ioctl(fd, UCCID_CMD_TXN_BEGIN, &begin) != 0) {
57 err(EXIT_FAILURE, "failed to issue begin ioctl");
58 }
59
60 ret = ioctl(fd, UCCID_CMD_TXN_BEGIN, &begin);
61 VERIFY3S(ret, ==, -1);
62 VERIFY3S(errno, ==, EEXIST);
63
64 if (ioctl(fd, UCCID_CMD_TXN_END, &end) != 0) {
65 err(EXIT_FAILURE, "failed to issue end ioctl");
66 }
67
68 VERIFY0(close(fd));
69
70 if ((fd = open(argv[1], O_RDWR)) < 0) {
71 err(EXIT_FAILURE, "failed to open %s", argv[1]);
72 }
73
74 ret = ioctl(fd, UCCID_CMD_TXN_BEGIN, &begin);
75 VERIFY0(ret);
76
77 ret = ioctl(fd, UCCID_CMD_TXN_BEGIN, &begin);
78 VERIFY3S(ret, ==, -1);
79 VERIFY3S(errno, ==, EEXIST);
80
81 VERIFY0(close(fd));
82
83 return (0);
84 }
85