Commit | Line | Data |
---|---|---|
b3ae7a0a GM |
1 | /* test-distrib.c --- testing distribution of nonprinting chars |
2 | ||
92b47a4a | 3 | Copyright (C) 1987, 1993, 1994, 1995, 1999, 2001, 2002, 2003, |
4e6835db | 4 | 2004, 2005, 2006, 2007 Free Software Foundation, Inc. |
b3ae7a0a GM |
5 | |
6 | This file is part of GNU Emacs. | |
7 | ||
8 | GNU Emacs is free software; you can redistribute it and/or modify | |
9 | it under the terms of the GNU General Public License as published by | |
10 | the Free Software Foundation; either version 2, or (at your option) | |
11 | any later version. | |
12 | ||
13 | GNU Emacs is distributed in the hope that it will be useful, | |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU General Public License | |
6666a3c3 | 19 | along with GNU Emacs; see the file COPYING. If not, write to the |
364c38d3 LK |
20 | Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
21 | Boston, MA 02110-1301, USA. */ | |
b3ae7a0a | 22 | |
33b78bd6 RM |
23 | #ifdef HAVE_CONFIG_H |
24 | #include <config.h> | |
25 | #endif | |
26 | ||
042c85b8 JB |
27 | #include <stdio.h> |
28 | ||
af5cae05 | 29 | #ifdef HAVE_FCNTL_H |
f0e8db05 DL |
30 | #include <fcntl.h> |
31 | #endif | |
32 | ||
9ee8cf9e AS |
33 | #ifdef HAVE_UNISTD_H |
34 | #include <unistd.h> | |
35 | #endif | |
36 | ||
33b78bd6 RM |
37 | #ifndef O_RDONLY |
38 | #define O_RDONLY 0 | |
39 | #endif | |
40 | ||
042c85b8 JB |
41 | /* Break string in two parts to avoid buggy C compilers that ignore characters |
42 | after nulls in strings. */ | |
43 | ||
44 | char string1[] = "Testing distribution of nonprinting chars:\n\ | |
45 | Should be 0177: \177 Should be 0377: \377 Should be 0212: \212.\n\ | |
46 | Should be 0000: "; | |
47 | ||
48 | char string2[] = ".\n\ | |
49 | This file is read by the `test-distribution' program.\n\ | |
50 | If you change it, you will make that program fail.\n"; | |
51 | ||
52 | char buf[300]; | |
80b2cbf2 | 53 | |
042c85b8 JB |
54 | /* Like `read' but keeps trying until it gets SIZE bytes or reaches eof. */ |
55 | int | |
56 | cool_read (fd, buf, size) | |
57 | int fd; | |
58 | char *buf; | |
59 | int size; | |
60 | { | |
61 | int num, sofar = 0; | |
62 | ||
63 | while (1) | |
64 | { | |
65 | if ((num = read (fd, buf + sofar, size - sofar)) == 0) | |
66 | return sofar; | |
67 | else if (num < 0) | |
68 | return num; | |
69 | sofar += num; | |
70 | } | |
71 | } | |
72 | ||
340ff9de | 73 | int |
d2d92f7a JB |
74 | main (argc, argv) |
75 | int argc; | |
76 | char **argv; | |
042c85b8 | 77 | { |
d2d92f7a | 78 | int fd; |
042c85b8 | 79 | |
d2d92f7a JB |
80 | if (argc != 2) |
81 | { | |
82 | fprintf (stderr, "Usage: %s testfile\n", argv[0]); | |
80e26b66 | 83 | exit (EXIT_FAILURE); |
d2d92f7a | 84 | } |
33b78bd6 | 85 | fd = open (argv[1], O_RDONLY); |
042c85b8 JB |
86 | if (fd < 0) |
87 | { | |
d2d92f7a | 88 | perror (argv[1]); |
80e26b66 | 89 | exit (EXIT_FAILURE); |
042c85b8 JB |
90 | } |
91 | if (cool_read (fd, buf, sizeof string1) != sizeof string1 || | |
92 | strcmp (buf, string1) || | |
93 | cool_read (fd, buf, sizeof string2) != sizeof string2 - 1 || | |
94 | strncmp (buf, string2, sizeof string2 - 1)) | |
95 | { | |
d2d92f7a | 96 | fprintf (stderr, "Data in file `%s' has been damaged.\n\ |
042c85b8 | 97 | Most likely this means that many nonprinting characters\n\ |
d2d92f7a JB |
98 | have been corrupted in the files of Emacs, and it will not work.\n", |
99 | argv[1]); | |
80e26b66 | 100 | exit (EXIT_FAILURE); |
042c85b8 JB |
101 | } |
102 | close (fd); | |
65396510 | 103 | return EXIT_SUCCESS; |
042c85b8 | 104 | } |
ab5796a9 MB |
105 | |
106 | /* arch-tag: 3a89005d-df98-4c32-aa9f-33570e16a26a | |
107 | (do not change this comment) */ | |
65396510 TTN |
108 | |
109 | /* test-distrib.c ends here */ |