mirror of
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0e0dc90965
Done through
sed -e 's/memcmp \([(][^()]*[)]\) != 0/!memeq \1/g' \
-e 's/memcmp \([(][^()]*[(][^()]*[)][^()]*[)]\) != 0/!memeq \1/g'
* tests/**/*.[hc]: Use !memeq instead of memcmp ... != 0.
* modules/*-tests (Dependencies): Add memeq.
55 lines
1.5 KiB
C
55 lines
1.5 KiB
C
/* Test the getentropy function.
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Copyright 2020-2026 Free Software Foundation, Inc.
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <https://www.gnu.org/licenses/>. */
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/* Written by Paul Eggert. */
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#include <config.h>
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#include <unistd.h>
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#include <string.h>
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#include "signature.h"
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SIGNATURE_CHECK (getentropy, int, (void *, size_t));
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#include "macros.h"
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char empty_buf[256];
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char buf[256];
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int
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main (int argc, char *argv[])
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{
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/* If this test fails, there's something wrong with the setup anyway. */
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ASSERT (getentropy (buf, sizeof buf) == 0);
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/* This test fails with probability 2**-2048. (Run it again if so. :-) */
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ASSERT (!memeq (buf, empty_buf, sizeof buf));
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/* It is very unlikely that two calls to getentropy produce the same
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results. */
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{
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char buf1[8];
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char buf2[8];
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ASSERT (getentropy (buf1, sizeof (buf1)) == 0);
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ASSERT (getentropy (buf2, sizeof (buf2)) == 0);
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ASSERT (!memeq (buf1, buf2, sizeof (buf1)));
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}
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return test_exit_status;
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}
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