1 /* $OpenBSD: makeinodes.c,v 1.2 2021/07/18 11:25:47 schwarze Exp $ */
2 /*
3 * Copyright (c) 2016, 2021 Ingo Schwarze <schwarze@openbsd.org>
4 *
5 * Permission to use, copy, modify, and distribute this software for any
6 * purpose with or without fee is hereby granted, provided that the above
7 * copyright notice and this permission notice appear in all copies.
8 *
9 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
10 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
12 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
15 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
16 */
17 #include <sys/stat.h>
18 #include <err.h>
19 #include <fcntl.h>
20 #include <stdio.h>
21 #include <string.h>
22 #include <unistd.h>
23
24 #define HSIZE 64
25
26 int
main(int argc,char * argv[])27 main(int argc, char *argv[])
28 {
29 struct stat sb1, sb2;
30 long long diff;
31 int fd, rev;
32
33 if (argc > 1 && strcmp(argv[1], "-r") == 0) {
34 rev = 1;
35 argc--;
36 argv++;
37 } else
38 rev = 0;
39
40 if (argc != 2) {
41 fputs("usage: makeinodes [-r] dirname\n", stderr);
42 return 1;
43 }
44 if (mkdir(argv[1], 0755) == -1)
45 err(1, "mkdir(%s)", argv[1]);
46 if (chdir(argv[1]) == -1)
47 err(1, "chdir(%s)", argv[1]);
48 if (mkdir("man1", 0755) == -1)
49 err(1, "mkdir(man1)");
50 if (chdir("man1") == -1)
51 err(1, "chdir(man1)");
52 if ((fd = open("1", O_WRONLY | O_CREAT | O_EXCL, 0644)) == -1)
53 err(1, "open(1)");
54 if (fstat(fd, &sb1) == -1)
55 err(1, "fstat(1)");
56 if (close(fd) == -1)
57 err(1, "close(1)");
58 if ((fd = open("2", O_WRONLY | O_CREAT | O_EXCL, 0644)) == -1)
59 err(1, "open(2)");
60 if (fstat(fd, &sb2) == -1)
61 err(1, "fstat(2)");
62 if (close(fd) == -1)
63 err(1, "close(2)");
64 while ((diff = sb2.st_ino % HSIZE - sb1.st_ino % HSIZE) == 0) {
65 if ((fd = open("3", O_WRONLY | O_CREAT | O_EXCL, 0644)) == -1)
66 err(1, "open(3)");
67 if (fstat(fd, &sb2) == -1)
68 err(1, "fstat(3)");
69 if (close(fd) == -1)
70 err(1, "close(3)");
71 if (rename("3", "2") == -1)
72 err(1, "rename(3, 2)");
73 }
74 if ((diff < 0) == rev) {
75 if (rename("1", "one.1") == -1)
76 err(1, "rename(1, one)");
77 if (rename("2", "two.1") == -1)
78 err(1, "rename(2, two)");
79 } else {
80 if (rename("2", "one.1") == -1)
81 err(1, "rename(2, one)");
82 if (rename("1", "two.1") == -1)
83 err(1, "rename(1, two)");
84 }
85 return 0;
86 }
87