2 * Copyright (c) 1999 - 2000 Kungliga Tekniska Högskolan
3 * (Royal Institute of Technology, Stockholm, Sweden).
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
17 * 3. Neither the name of the Institute nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
21 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
41 #include <sys/types.h>
51 main(int argc, char *argv[])
58 fd1 = open("foo", O_RDWR | O_CREAT, 0666);
62 ret = fstat(fd1, &sb1);
66 if (sb1.st_nlink != 1)
67 errx(1, "foo.st_nlink != 1");
69 ret = link("foo", "bar");
71 err(1, "link foo, bar");
73 ret = fstat(fd1, &sb1);
77 ret = lstat("bar", &sb2);
81 if (sb1.st_nlink != 2)
82 errx(1, "foo.st_nlink != 2");
84 if (sb2.st_nlink != 2)
85 errx(1, "bar.st_nlink != 2");
87 if (sb1.st_dev != sb2.st_dev || sb1.st_ino != sb2.st_ino)
88 errx(1, "dev and ino differ");
90 fd2 = open("bar", O_RDONLY, 0);
94 ret = fstat(fd2, &sb2);
98 if (sb2.st_nlink != 2)
99 errx(1, "bar.st_nlink != 2");
101 if (write(fd1, "hej", 3) != 3)
102 errx(1, "write to foo");
104 ret = fstat(fd1, &sb1);
108 if (sb1.st_size != 3)
109 errx(1, "foo.st_size != 3");
115 ret = fstat(fd2, &sb2);
119 if (sb2.st_size != 3)
120 errx(1, "bar.st_size != 3");
126 if (unlink("foo") < 0)
127 err(1, "unlink foo");
129 fd2 = open("bar", O_RDONLY, 0);
133 ret = fstat(fd2, &sb2);
137 if (sb2.st_nlink != 1)
138 errx(1, "bar.st_nlink != 1");
144 if (unlink("bar") < 0)
145 err(1, "unlink bar");