31 lines
		
	
	
		
			692 B
		
	
	
	
		
			C
		
	
	
	
			
		
		
	
	
			31 lines
		
	
	
		
			692 B
		
	
	
	
		
			C
		
	
	
	
| // SPDX-License-Identifier: GPL-2.0-or-later
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| /*
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|  * Copyright (C) 2015 Cedric Hnyda <ced.hnyda@gmail.com>
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|  *
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|  * Calls getrandom(2) with a NULL buffer and expects failure.
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|  */
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| 
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| #include "lapi/getrandom.h"
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| #include "lapi/syscalls.h"
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| #include "tst_test.h"
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| 
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| static int modes[] = {0, GRND_RANDOM, GRND_NONBLOCK,
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| 		      GRND_RANDOM | GRND_NONBLOCK};
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| 
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| static void verify_getrandom(unsigned int n)
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| {
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| 	TEST(tst_syscall(__NR_getrandom, NULL, 100, modes[n]));
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| 
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| 	if (TST_RET == -1) {
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| 		tst_res(TPASS | TTERRNO, "getrandom returned %ld",
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| 			TST_RET);
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| 	} else {
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| 		tst_res(TFAIL | TTERRNO, "getrandom failed");
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| 	}
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| }
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| 
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| static struct tst_test test = {
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| 	.tcnt = ARRAY_SIZE(modes),
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| 	.test = verify_getrandom,
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| };
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