1 /* $NetBSD: h_fileactions.c,v 1.2 2021/11/07 15:46:20 christos Exp $ */
2
3 /*-
4 * Copyright (c) 2012 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Charles Zhang <charles@NetBSD.org> and
9 * Martin Husemann <martin@NetBSD.org>.
10 *
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
13 * are met:
14 * 1. Redistributions of source code must retain the above copyright
15 * notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 * notice, this list of conditions and the following disclaimer in the
18 * documentation and/or other materials provided with the distribution.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
21 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
22 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
23 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
24 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
30 * POSSIBILITY OF SUCH DAMAGE.
31 */
32 #include <sys/cdefs.h>
33 __RCSID("$NetBSD: h_fileactions.c,v 1.2 2021/11/07 15:46:20 christos Exp $");
34
35 #include <stdio.h>
36 #include <stdlib.h>
37 #include <string.h>
38 #include <unistd.h>
39 #include <errno.h>
40 #include <sys/stat.h>
41
42 #define BUFSIZE 16
43
44 /*
45 * This checks (hardcoded) the assumptions that are setup from the
46 * main test program via posix spawn file actions.
47 * Program exits with EXIT_SUCCESS or EXIT_FAILURE accordingly
48 * (and does some stderr diagnostics in case of errors).
49 */
50 int
main(int argc,char ** argv)51 main(int argc, char **argv)
52 {
53 int res = EXIT_SUCCESS;
54 char buf[BUFSIZE];
55 struct stat sb0, sb1;
56
57 strcpy(buf, "test...");
58 /* file desc 3 should be closed via addclose */
59 if (read(3, buf, BUFSIZE) != -1 || errno != EBADF) {
60 fprintf(stderr, "%s: filedesc 3 is not closed\n",
61 getprogname());
62 res = EXIT_FAILURE;
63 }
64 /* file desc 4 should be closed via closeonexec */
65 if (read(4, buf, BUFSIZE) != -1 || errno != EBADF) {
66 fprintf(stderr, "%s: filedesc 4 is not closed\n",
67 getprogname());
68 res = EXIT_FAILURE;
69 }
70 /* file desc 5 remains open */
71 if (write(5, buf, BUFSIZE) <= 0) {
72 fprintf(stderr, "%s: could not write to filedesc 5\n",
73 getprogname());
74 res = EXIT_FAILURE;
75 }
76 /* file desc 6 should be open (via addopen) */
77 if (write(6, buf, BUFSIZE) <= 0) {
78 fprintf(stderr, "%s: could not write to filedesc 6\n",
79 getprogname());
80 res = EXIT_FAILURE;
81 }
82 /* file desc 7 should refer to stdout */
83 fflush(stdout);
84 if (fstat(fileno(stdout), &sb0) != 0) {
85 fprintf(stderr, "%s: could not fstat stdout\n",
86 getprogname());
87 res = EXIT_FAILURE;
88 }
89 if (fstat(7, &sb1) != 0) {
90 fprintf(stderr, "%s: could not fstat filedesc 7\n",
91 getprogname());
92 res = EXIT_FAILURE;
93 }
94 if (write(7, buf, strlen(buf)) <= 0) {
95 fprintf(stderr, "%s: could not write to filedesc 7\n",
96 getprogname());
97 res = EXIT_FAILURE;
98 }
99 if (memcmp(&sb0, &sb1, sizeof sb0) != 0) {
100 fprintf(stderr, "%s: stat results differ\n", getprogname());
101 res = EXIT_FAILURE;
102 }
103
104 return res;
105 }
106
107