xref: /freebsd/lib/libc/tests/stdio/mkostemp_test.c (revision cfd6422a5217410fbd66f7a7a8a64d9d85e61229)
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 /*
28  * Test program for mkostemp().
29  */
30 
31 #include <sys/cdefs.h>
32 __FBSDID("$FreeBSD$");
33 
34 #include <sys/stat.h>
35 
36 #include <errno.h>
37 #include <fcntl.h>
38 #include <paths.h>
39 #include <stdio.h>
40 #include <stdlib.h>
41 #include <string.h>
42 #include <unistd.h>
43 
44 #include <atf-c.h>
45 
46 static const char template[] = "mkostemp.XXXXXXXX";
47 static int testnum;
48 
49 #define MISCFLAGS (O_APPEND | O_DIRECT | O_SHLOCK | O_EXLOCK | O_SYNC)
50 
51 static void
52 test_one(int oflags)
53 {
54 	char tmpf[sizeof(template)];
55 	struct stat st1, st2;
56 	int fd;
57 
58 	memcpy(tmpf, template, sizeof(tmpf));
59 	fd = mkostemp(tmpf, oflags);
60 	if (fd < 0) {
61 		printf("not ok %d - oflags=%#x "
62 		    "mkostemp() reported failure: %s\n",
63 		    testnum++, oflags, strerror(errno));
64 		return;
65 	}
66 	if (memcmp(tmpf, template, sizeof(tmpf) - 8 - 1) != 0) {
67 		printf("not ok %d - oflags=%#x "
68 		    "returned pathname does not match template: %s\n",
69 		    testnum++, oflags, tmpf);
70 		return;
71 	}
72 	do {
73 		if (fcntl(fd, F_GETFD) !=
74 		    (oflags & O_CLOEXEC ? FD_CLOEXEC : 0)) {
75 			printf("not ok %d - oflags=%#x "
76 			    "close-on-exec flag incorrect\n",
77 			    testnum++, oflags);
78 			break;
79 		}
80 		if ((fcntl(fd, F_GETFL) & MISCFLAGS) != (oflags & MISCFLAGS)) {
81 			printf("not ok %d - oflags=%#x "
82 			    "open flags incorrect\n",
83 			    testnum++, oflags);
84 			break;
85 		}
86 		if (stat(tmpf, &st1) == -1) {
87 			printf("not ok %d - oflags=%#x "
88 			    "cannot stat returned pathname %s: %s\n",
89 			    testnum++, oflags, tmpf, strerror(errno));
90 			break;
91 		}
92 		if (fstat(fd, &st2) == -1) {
93 			printf("not ok %d - oflags=%#x "
94 			    "cannot fstat returned fd %d: %s\n",
95 			    testnum++, oflags, fd, strerror(errno));
96 			break;
97 		}
98 		if (!S_ISREG(st1.st_mode) || (st1.st_mode & 0777) != 0600 ||
99 		    st1.st_nlink != 1 || st1.st_size != 0) {
100 			printf("not ok %d - oflags=%#x "
101 			    "named file attributes incorrect\n",
102 			    testnum++, oflags);
103 			break;
104 		}
105 		if (!S_ISREG(st2.st_mode) || (st2.st_mode & 0777) != 0600 ||
106 		    st2.st_nlink != 1 || st2.st_size != 0) {
107 			printf("not ok %d - oflags=%#x "
108 			    "opened file attributes incorrect\n",
109 			    testnum++, oflags);
110 			break;
111 		}
112 		if (st1.st_dev != st2.st_dev || st1.st_ino != st2.st_ino) {
113 			printf("not ok %d - oflags=%#x "
114 			    "named and opened file do not match\n",
115 			    testnum++, oflags);
116 			break;
117 		}
118 		(void)unlink(tmpf);
119 		if (fstat(fd, &st2) == -1)
120 			printf("not ok %d - oflags=%#x "
121 			    "cannot fstat returned fd %d again: %s\n",
122 			    testnum++, oflags, fd, strerror(errno));
123 		else if (st2.st_nlink != 0)
124 			printf("not ok %d - oflags=%#x "
125 			    "st_nlink is not 0 after unlink\n",
126 			    testnum++, oflags);
127 		else
128 			printf("ok %d - oflags=%#x\n", testnum++, oflags);
129 		(void)close(fd);
130 		return;
131 	} while (0);
132 	(void)close(fd);
133 	(void)unlink(tmpf);
134 }
135 
136 ATF_TC_WITHOUT_HEAD(zero);
137 ATF_TC_BODY(zero, tc)
138 {
139 
140 	test_one(0);
141 }
142 
143 ATF_TC_WITHOUT_HEAD(O_CLOEXEC);
144 ATF_TC_BODY(O_CLOEXEC, tc)
145 {
146 
147 	test_one(O_CLOEXEC);
148 }
149 
150 ATF_TC_WITHOUT_HEAD(O_APPEND);
151 ATF_TC_BODY(O_APPEND, tc)
152 {
153 
154 	test_one(O_APPEND);
155 }
156 
157 ATF_TC_WITHOUT_HEAD(O_APPEND__O_CLOEXEC);
158 ATF_TC_BODY(O_APPEND__O_CLOEXEC, tc)
159 {
160 
161 	test_one(O_APPEND|O_CLOEXEC);
162 }
163 
164 ATF_TC_WITHOUT_HEAD(bad_flags);
165 ATF_TC_BODY(bad_flags, tc)
166 {
167 
168 	char tmpf[sizeof(template)];
169 
170 	memcpy(tmpf, template, sizeof(tmpf));
171 	ATF_REQUIRE_MSG(mkostemp(tmpf, O_CREAT) == -1,
172 		"mkostemp(O_CREAT) succeeded unexpectedly");
173 }
174 
175 ATF_TP_ADD_TCS(tp)
176 {
177 
178 	ATF_TP_ADD_TC(tp, zero);
179 	ATF_TP_ADD_TC(tp, O_CLOEXEC);
180 	ATF_TP_ADD_TC(tp, O_APPEND);
181 	ATF_TP_ADD_TC(tp, O_APPEND__O_CLOEXEC);
182 	ATF_TP_ADD_TC(tp, bad_flags);
183 
184 	return (atf_no_error());
185 }
186