2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
4 * Copyright (c) 2018 Conrad Meyer <cem@FreeBSD.org>
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 #include <sys/cdefs.h>
30 __FBSDID("$FreeBSD$");
32 #include <sys/param.h>
39 ATF_TC_WITHOUT_HEAD(getentropy_count);
40 ATF_TC_BODY(getentropy_count, tc)
45 /* getentropy(2) does not modify buf past the requested length */
47 ret = getentropy(buf, 1);
48 ATF_REQUIRE_EQ(ret, 0);
49 ATF_REQUIRE_EQ(buf[1], 0x7C);
52 ATF_TC_WITHOUT_HEAD(getentropy_fault);
53 ATF_TC_BODY(getentropy_fault, tc)
57 ret = getentropy(NULL, 1);
58 ATF_REQUIRE_EQ(ret, -1);
59 ATF_REQUIRE_EQ(errno, EFAULT);
62 ATF_TC_WITHOUT_HEAD(getentropy_sizes);
63 ATF_TC_BODY(getentropy_sizes, tc)
67 ATF_REQUIRE_EQ(getentropy(buf, sizeof(buf)), -1);
68 ATF_REQUIRE_EQ(errno, EIO);
69 ATF_REQUIRE_EQ(getentropy(buf, 257), -1);
70 ATF_REQUIRE_EQ(errno, EIO);
72 /* Smaller sizes always succeed: */
73 ATF_REQUIRE_EQ(getentropy(buf, 256), 0);
74 ATF_REQUIRE_EQ(getentropy(buf, 128), 0);
75 ATF_REQUIRE_EQ(getentropy(buf, 0), 0);
81 signal(SIGSYS, SIG_IGN);
83 ATF_TP_ADD_TC(tp, getentropy_count);
84 ATF_TP_ADD_TC(tp, getentropy_fault);
85 ATF_TP_ADD_TC(tp, getentropy_sizes);
86 return (atf_no_error());