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 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