45 lines
1.0 KiB
C
45 lines
1.0 KiB
C
/*
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* Copyright (c) 2015-2018 Dmitry V. Levin <ldv@altlinux.org>
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* All rights reserved.
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*
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* SPDX-License-Identifier: GPL-2.0-or-later
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*/
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#include "tests.h"
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#include <asm/unistd.h>
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#ifdef __NR_getrandom
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# include <stdio.h>
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# include <unistd.h>
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int
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main(void)
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{
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unsigned char buf[4];
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if (syscall(__NR_getrandom, buf, sizeof(buf) - 1, 0) != sizeof(buf) - 1)
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perror_msg_and_skip("getrandom");
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printf("getrandom(\"\\x%02x\\x%02x\\x%02x\", 3, 0) = 3\n",
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(int) buf[0], (int) buf[1], (int) buf[2]);
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if (syscall(__NR_getrandom, buf, sizeof(buf), 1) != sizeof(buf))
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perror_msg_and_skip("getrandom");
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printf("getrandom(\"\\x%02x\\x%02x\\x%02x\"..., 4, GRND_NONBLOCK) = 4\n",
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(int) buf[0], (int) buf[1], (int) buf[2]);
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if (syscall(__NR_getrandom, buf, sizeof(buf), 0x3003) != -1)
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perror_msg_and_skip("getrandom");
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printf("getrandom(%p, 4, GRND_NONBLOCK|GRND_RANDOM|0x3000) = "
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"-1 EINVAL (%m)\n", buf);
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puts("+++ exited with 0 +++");
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return 0;
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}
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#else
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SKIP_MAIN_UNDEFINED("__NR_getrandom")
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#endif
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