4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 only,
8 * as published by the Free Software Foundation.
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * General Public License version 2 for more details (a copy is included
14 * in the LICENSE file that accompanied this code).
16 * You should have received a copy of the GNU General Public License
17 * version 2 along with this program; If not, see
18 * http://www.gnu.org/licenses/gpl-2.0.html
23 * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
24 * Use is subject to license terms.
27 * This file is part of Lustre, http://www.lustre.org/
28 * Lustre is a trademark of Sun Microsystems, Inc.
38 #include <sys/types.h>
45 int main(int argc, char **argv)
47 char *dname1, *dname2;
48 int fddev1, fddev2, rc;
51 if (argc < 2 || argc > 3) {
52 fprintf(stderr, "usage: %s filename1 [filename2]\n", argv[0]);
62 /* create the special file (right now only test on pipe) */
63 fprintf(stderr, "creating special file %s\n", dname1);
64 rc = mknod(dname1, 0777 | S_IFIFO, 0);
66 fprintf(stderr, "creating %s fails: %s\n",
67 dname1, strerror(errno));
71 /* open the special file again */
72 fprintf(stderr, "opening file\n");
73 fddev1 = open(dname1, O_RDONLY | O_NONBLOCK);
75 fprintf(stderr, "open %s fails: %s\n",
76 dname1, strerror(errno));
80 /* doesn't matter if the two dirs are the same?? */
81 fddev2 = open(dname2, O_RDONLY | O_NONBLOCK);
83 fprintf(stderr, "open %s fails: %s\n",
84 dname2, strerror(errno));
88 /* delete the special file */
89 fprintf(stderr, "unlinking %s\n", dname1);
92 fprintf(stderr, "unlink %s error: %s\n",
93 dname1, strerror(errno));
97 if (access(dname2, F_OK) == 0) {
98 fprintf(stderr, "%s still exists\n", dname2);
102 if (access(dname1, F_OK) == 0) {
103 fprintf(stderr, "%s still exists\n", dname1);
107 /* fchmod one special file */
108 rc = fchmod(fddev1, 0777);
110 fprintf(stderr, "fchmod unlinked special file %s fails: %s\n",
111 dname1, strerror(errno));
115 /* fstat two files to check if they are the same */
116 rc = fstat(fddev1, &st1);
118 fprintf(stderr, "fstat unlinked special file %s fails: %s\n",
119 dname1, strerror(errno));
123 rc = fstat(fddev2, &st2);
125 fprintf(stderr, "fstat file %s fails: %s\n",
126 dname2, strerror(errno));
130 fprintf(stderr, "Ok, everything goes well.\n");