1 /*-
2 * Copyright (c) 2013 Jilles Tjoelker
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 */
26
27 #include <sys/filio.h>
28 #include <errno.h>
29 #include <fcntl.h>
30 #include <stdio.h>
31 #include <unistd.h>
32
33 #include <atf-c.h>
34
35 /*
36 * O_ACCMODE is currently defined incorrectly. This is what it should be.
37 * Various code depends on the incorrect value.
38 */
39 #define CORRECT_O_ACCMODE (O_ACCMODE | O_EXEC)
40
41 static void
basic_tests(const char * path,int omode,const char * omodetext)42 basic_tests(const char *path, int omode, const char *omodetext)
43 {
44 int fd, flags1, flags2, flags3;
45
46 fd = open(path, omode);
47 ATF_REQUIRE_MSG(fd != -1, "open(\"%s\", %s) failed: %s", path,
48 omodetext, strerror(errno));
49
50 flags1 = fcntl(fd, F_GETFL);
51 ATF_REQUIRE_MSG(flags1 != -1, "fcntl(F_GETFL) (1) failed: %s",
52 strerror(errno));
53 ATF_REQUIRE_INTEQ(omode, flags1 & CORRECT_O_ACCMODE);
54 ATF_REQUIRE((flags1 & O_NONBLOCK) == 0);
55
56 ATF_REQUIRE_MSG(fcntl(fd, F_SETFL, flags1) != -1,
57 "fcntl(F_SETFL) same flags failed: %s", strerror(errno));
58
59 flags2 = fcntl(fd, F_GETFL);
60 ATF_REQUIRE_MSG(flags2 != -1, "fcntl(F_GETFL) (2) failed: %s",
61 strerror(errno));
62 ATF_REQUIRE_INTEQ(flags1, flags2);
63
64 ATF_REQUIRE_MSG(fcntl(fd, F_SETFL, flags2 | O_NONBLOCK) != -1,
65 "fcntl(F_SETFL) O_NONBLOCK failed: %s", strerror(errno));
66
67 flags3 = fcntl(fd, F_GETFL);
68 ATF_REQUIRE_MSG(flags3 != -1, "fcntl(F_GETFL) (3) failed: %s",
69 strerror(errno));
70 ATF_REQUIRE_INTEQ(flags2 | O_NONBLOCK, flags3);
71
72 (void)close(fd);
73 }
74
75 ATF_TC_WITHOUT_HEAD(read_only_null);
ATF_TC_BODY(read_only_null,tc)76 ATF_TC_BODY(read_only_null, tc)
77 {
78 basic_tests("/dev/null", O_RDONLY, "O_RDONLY");
79 }
80
81 ATF_TC_WITHOUT_HEAD(write_only_null);
ATF_TC_BODY(write_only_null,tc)82 ATF_TC_BODY(write_only_null, tc)
83 {
84 basic_tests("/dev/null", O_WRONLY, "O_WRONLY");
85 }
86
87 ATF_TC_WITHOUT_HEAD(read_write_null);
ATF_TC_BODY(read_write_null,tc)88 ATF_TC_BODY(read_write_null, tc)
89 {
90 basic_tests("/dev/null", O_RDWR, "O_RDWR");
91 }
92
93 ATF_TC_WITHOUT_HEAD(exec_only_sh);
ATF_TC_BODY(exec_only_sh,tc)94 ATF_TC_BODY(exec_only_sh, tc)
95 {
96 basic_tests("/bin/sh", O_EXEC, "O_EXEC");
97 }
98
99 ATF_TC_WITHOUT_HEAD(fioasync_dev_null);
ATF_TC_BODY(fioasync_dev_null,tc)100 ATF_TC_BODY(fioasync_dev_null, tc)
101 {
102 int fd, flags1, flags2, val;
103
104 fd = open("/dev/null", O_RDONLY);
105 ATF_REQUIRE_MSG(fd != -1, "open(\"/dev/null\") failed: %s",
106 strerror(errno));
107
108 flags1 = fcntl(fd, F_GETFL);
109 ATF_REQUIRE_MSG(flags1 != -1, "fcntl(F_GETFL) (1) failed: %s",
110 strerror(errno));
111 ATF_REQUIRE((flags1 & O_ASYNC) == 0);
112
113 val = 1;
114 ATF_REQUIRE_ERRNO(EINVAL, ioctl(fd, FIOASYNC, &val) == -1);
115
116 flags2 = fcntl(fd, F_GETFL);
117 ATF_REQUIRE_MSG(flags2 != -1, "fcntl(F_GETFL) (2) failed: %s",
118 strerror(errno));
119 ATF_REQUIRE_INTEQ(flags1, flags2);
120
121 (void)close(fd);
122 }
123
ATF_TP_ADD_TCS(tp)124 ATF_TP_ADD_TCS(tp)
125 {
126 ATF_TP_ADD_TC(tp, read_only_null);
127 ATF_TP_ADD_TC(tp, write_only_null);
128 ATF_TP_ADD_TC(tp, read_write_null);
129 ATF_TP_ADD_TC(tp, exec_only_sh);
130 ATF_TP_ADD_TC(tp, fioasync_dev_null);
131
132 return (atf_no_error());
133 }
134