xref: /minix3/tests/lib/libc/sys/t_truncate.c (revision 11be35a165022172ed3cea20f2b5df0307540b0e)
1*11be35a1SLionel Sambuc /* $NetBSD: t_truncate.c,v 1.2 2011/08/18 19:48:03 dholland Exp $ */
2*11be35a1SLionel Sambuc 
3*11be35a1SLionel Sambuc /*-
4*11be35a1SLionel Sambuc  * Copyright (c) 2011 The NetBSD Foundation, Inc.
5*11be35a1SLionel Sambuc  * All rights reserved.
6*11be35a1SLionel Sambuc  *
7*11be35a1SLionel Sambuc  * This code is derived from software contributed to The NetBSD Foundation
8*11be35a1SLionel Sambuc  * by Jukka Ruohonen.
9*11be35a1SLionel Sambuc  *
10*11be35a1SLionel Sambuc  * Redistribution and use in source and binary forms, with or without
11*11be35a1SLionel Sambuc  * modification, are permitted provided that the following conditions
12*11be35a1SLionel Sambuc  * are met:
13*11be35a1SLionel Sambuc  * 1. Redistributions of source code must retain the above copyright
14*11be35a1SLionel Sambuc  *    notice, this list of conditions and the following disclaimer.
15*11be35a1SLionel Sambuc  * 2. Redistributions in binary form must reproduce the above copyright
16*11be35a1SLionel Sambuc  *    notice, this list of conditions and the following disclaimer in the
17*11be35a1SLionel Sambuc  *    documentation and/or other materials provided with the distribution.
18*11be35a1SLionel Sambuc  *
19*11be35a1SLionel Sambuc  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20*11be35a1SLionel Sambuc  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21*11be35a1SLionel Sambuc  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22*11be35a1SLionel Sambuc  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23*11be35a1SLionel Sambuc  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24*11be35a1SLionel Sambuc  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25*11be35a1SLionel Sambuc  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26*11be35a1SLionel Sambuc  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27*11be35a1SLionel Sambuc  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28*11be35a1SLionel Sambuc  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29*11be35a1SLionel Sambuc  * POSSIBILITY OF SUCH DAMAGE.
30*11be35a1SLionel Sambuc  */
31*11be35a1SLionel Sambuc #include <sys/cdefs.h>
32*11be35a1SLionel Sambuc __RCSID("$NetBSD: t_truncate.c,v 1.2 2011/08/18 19:48:03 dholland Exp $");
33*11be35a1SLionel Sambuc 
34*11be35a1SLionel Sambuc #include <sys/stat.h>
35*11be35a1SLionel Sambuc 
36*11be35a1SLionel Sambuc #include <atf-c.h>
37*11be35a1SLionel Sambuc #include <errno.h>
38*11be35a1SLionel Sambuc #include <fcntl.h>
39*11be35a1SLionel Sambuc #include <stdio.h>
40*11be35a1SLionel Sambuc #include <string.h>
41*11be35a1SLionel Sambuc #include <unistd.h>
42*11be35a1SLionel Sambuc 
43*11be35a1SLionel Sambuc static const char path[] = "truncate";
44*11be35a1SLionel Sambuc static const size_t sizes[] = { 8, 16, 512, 1024, 2048, 4094, 3000, 30 };
45*11be35a1SLionel Sambuc 
46*11be35a1SLionel Sambuc ATF_TC_WITH_CLEANUP(ftruncate_basic);
ATF_TC_HEAD(ftruncate_basic,tc)47*11be35a1SLionel Sambuc ATF_TC_HEAD(ftruncate_basic, tc)
48*11be35a1SLionel Sambuc {
49*11be35a1SLionel Sambuc 	atf_tc_set_md_var(tc, "descr", "A basic test of ftruncate(2)");
50*11be35a1SLionel Sambuc }
51*11be35a1SLionel Sambuc 
ATF_TC_BODY(ftruncate_basic,tc)52*11be35a1SLionel Sambuc ATF_TC_BODY(ftruncate_basic, tc)
53*11be35a1SLionel Sambuc {
54*11be35a1SLionel Sambuc 	struct stat st;
55*11be35a1SLionel Sambuc 	size_t i;
56*11be35a1SLionel Sambuc 	int fd;
57*11be35a1SLionel Sambuc 
58*11be35a1SLionel Sambuc 	fd = open(path, O_RDWR | O_CREAT, 0600);
59*11be35a1SLionel Sambuc 	ATF_REQUIRE(fd >= 0);
60*11be35a1SLionel Sambuc 
61*11be35a1SLionel Sambuc 	for (i = 0; i < __arraycount(sizes); i++) {
62*11be35a1SLionel Sambuc 
63*11be35a1SLionel Sambuc 		(void)memset(&st, 0, sizeof(struct stat));
64*11be35a1SLionel Sambuc 
65*11be35a1SLionel Sambuc 		ATF_REQUIRE(ftruncate(fd, sizes[i]) == 0);
66*11be35a1SLionel Sambuc 		ATF_REQUIRE(fstat(fd, &st) == 0);
67*11be35a1SLionel Sambuc 
68*11be35a1SLionel Sambuc 		(void)fprintf(stderr, "truncating to %zu bytes\n", sizes[i]);
69*11be35a1SLionel Sambuc 
70*11be35a1SLionel Sambuc 		if (sizes[i] != (size_t)st.st_size)
71*11be35a1SLionel Sambuc 			atf_tc_fail("ftruncate(2) did not truncate");
72*11be35a1SLionel Sambuc 	}
73*11be35a1SLionel Sambuc 
74*11be35a1SLionel Sambuc 	(void)close(fd);
75*11be35a1SLionel Sambuc 	(void)unlink(path);
76*11be35a1SLionel Sambuc }
77*11be35a1SLionel Sambuc 
ATF_TC_CLEANUP(ftruncate_basic,tc)78*11be35a1SLionel Sambuc ATF_TC_CLEANUP(ftruncate_basic, tc)
79*11be35a1SLionel Sambuc {
80*11be35a1SLionel Sambuc 	(void)unlink(path);
81*11be35a1SLionel Sambuc }
82*11be35a1SLionel Sambuc 
83*11be35a1SLionel Sambuc ATF_TC(ftruncate_err);
ATF_TC_HEAD(ftruncate_err,tc)84*11be35a1SLionel Sambuc ATF_TC_HEAD(ftruncate_err, tc)
85*11be35a1SLionel Sambuc {
86*11be35a1SLionel Sambuc 	atf_tc_set_md_var(tc, "descr", "Test errors from ftruncate(2)");
87*11be35a1SLionel Sambuc 	atf_tc_set_md_var(tc, "require.user", "unprivileged");
88*11be35a1SLionel Sambuc }
89*11be35a1SLionel Sambuc 
ATF_TC_BODY(ftruncate_err,tc)90*11be35a1SLionel Sambuc ATF_TC_BODY(ftruncate_err, tc)
91*11be35a1SLionel Sambuc {
92*11be35a1SLionel Sambuc 	int fd;
93*11be35a1SLionel Sambuc 
94*11be35a1SLionel Sambuc 	fd = open("/etc/passwd", O_RDONLY, 0400);
95*11be35a1SLionel Sambuc 	ATF_REQUIRE(fd >= 0);
96*11be35a1SLionel Sambuc 
97*11be35a1SLionel Sambuc 	errno = 0;
98*11be35a1SLionel Sambuc 	ATF_REQUIRE_ERRNO(EBADF, ftruncate(-1, 999) == -1);
99*11be35a1SLionel Sambuc 
100*11be35a1SLionel Sambuc 	errno = 0;
101*11be35a1SLionel Sambuc 	ATF_REQUIRE_ERRNO(EINVAL, ftruncate(fd, 999) == -1);
102*11be35a1SLionel Sambuc 
103*11be35a1SLionel Sambuc 	(void)close(fd);
104*11be35a1SLionel Sambuc }
105*11be35a1SLionel Sambuc 
106*11be35a1SLionel Sambuc ATF_TC_WITH_CLEANUP(truncate_basic);
ATF_TC_HEAD(truncate_basic,tc)107*11be35a1SLionel Sambuc ATF_TC_HEAD(truncate_basic, tc)
108*11be35a1SLionel Sambuc {
109*11be35a1SLionel Sambuc 	atf_tc_set_md_var(tc, "descr", "A basic test of truncate(2)");
110*11be35a1SLionel Sambuc }
111*11be35a1SLionel Sambuc 
ATF_TC_BODY(truncate_basic,tc)112*11be35a1SLionel Sambuc ATF_TC_BODY(truncate_basic, tc)
113*11be35a1SLionel Sambuc {
114*11be35a1SLionel Sambuc 	struct stat st;
115*11be35a1SLionel Sambuc 	size_t i;
116*11be35a1SLionel Sambuc 	int fd;
117*11be35a1SLionel Sambuc 
118*11be35a1SLionel Sambuc 	fd = open(path, O_RDWR | O_CREAT, 0600);
119*11be35a1SLionel Sambuc 	ATF_REQUIRE(fd >= 0);
120*11be35a1SLionel Sambuc 
121*11be35a1SLionel Sambuc 	for (i = 0; i < __arraycount(sizes); i++) {
122*11be35a1SLionel Sambuc 
123*11be35a1SLionel Sambuc 		(void)memset(&st, 0, sizeof(struct stat));
124*11be35a1SLionel Sambuc 
125*11be35a1SLionel Sambuc 		ATF_REQUIRE(truncate(path, sizes[i]) == 0);
126*11be35a1SLionel Sambuc 		ATF_REQUIRE(fstat(fd, &st) == 0);
127*11be35a1SLionel Sambuc 
128*11be35a1SLionel Sambuc 		(void)fprintf(stderr, "truncating to %zu bytes\n", sizes[i]);
129*11be35a1SLionel Sambuc 
130*11be35a1SLionel Sambuc 		if (sizes[i] != (size_t)st.st_size)
131*11be35a1SLionel Sambuc 			atf_tc_fail("truncate(2) did not truncate");
132*11be35a1SLionel Sambuc 	}
133*11be35a1SLionel Sambuc 
134*11be35a1SLionel Sambuc 	(void)close(fd);
135*11be35a1SLionel Sambuc 	(void)unlink(path);
136*11be35a1SLionel Sambuc }
137*11be35a1SLionel Sambuc 
ATF_TC_CLEANUP(truncate_basic,tc)138*11be35a1SLionel Sambuc ATF_TC_CLEANUP(truncate_basic, tc)
139*11be35a1SLionel Sambuc {
140*11be35a1SLionel Sambuc 	(void)unlink(path);
141*11be35a1SLionel Sambuc }
142*11be35a1SLionel Sambuc 
143*11be35a1SLionel Sambuc ATF_TC(truncate_err);
ATF_TC_HEAD(truncate_err,tc)144*11be35a1SLionel Sambuc ATF_TC_HEAD(truncate_err, tc)
145*11be35a1SLionel Sambuc {
146*11be35a1SLionel Sambuc 	atf_tc_set_md_var(tc, "descr", "Test errors from truncate(2)");
147*11be35a1SLionel Sambuc 	atf_tc_set_md_var(tc, "require.user", "unprivileged");
148*11be35a1SLionel Sambuc }
149*11be35a1SLionel Sambuc 
ATF_TC_BODY(truncate_err,tc)150*11be35a1SLionel Sambuc ATF_TC_BODY(truncate_err, tc)
151*11be35a1SLionel Sambuc {
152*11be35a1SLionel Sambuc 
153*11be35a1SLionel Sambuc 	errno = 0;
154*11be35a1SLionel Sambuc 	ATF_REQUIRE_ERRNO(EFAULT, truncate((void *)-1, 999) == -1);
155*11be35a1SLionel Sambuc 
156*11be35a1SLionel Sambuc 	errno = 0;
157*11be35a1SLionel Sambuc 	ATF_REQUIRE_ERRNO(EISDIR, truncate("/etc", 999) == -1);
158*11be35a1SLionel Sambuc 
159*11be35a1SLionel Sambuc 	errno = 0;
160*11be35a1SLionel Sambuc 	ATF_REQUIRE_ERRNO(ENOENT, truncate("/a/b/c/d/e/f/g", 999) == -1);
161*11be35a1SLionel Sambuc 
162*11be35a1SLionel Sambuc 	errno = 0;
163*11be35a1SLionel Sambuc 	ATF_REQUIRE_ERRNO(EACCES, truncate("/usr/bin/fpr", 999) == -1);
164*11be35a1SLionel Sambuc }
165*11be35a1SLionel Sambuc 
ATF_TP_ADD_TCS(tp)166*11be35a1SLionel Sambuc ATF_TP_ADD_TCS(tp)
167*11be35a1SLionel Sambuc {
168*11be35a1SLionel Sambuc 
169*11be35a1SLionel Sambuc 	ATF_TP_ADD_TC(tp, ftruncate_basic);
170*11be35a1SLionel Sambuc 	ATF_TP_ADD_TC(tp, ftruncate_err);
171*11be35a1SLionel Sambuc 	ATF_TP_ADD_TC(tp, truncate_basic);
172*11be35a1SLionel Sambuc 	ATF_TP_ADD_TC(tp, truncate_err);
173*11be35a1SLionel Sambuc 
174*11be35a1SLionel Sambuc 	return atf_no_error();
175*11be35a1SLionel Sambuc }
176