22 lines
		
	
	
		
			583 B
		
	
	
	
		
			V
		
	
	
			
		
		
	
	
			22 lines
		
	
	
		
			583 B
		
	
	
	
		
			V
		
	
	
| // Copyright (c) 2019-2021 Alexander Medvednikov. All rights reserved.
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| // Use of this source code is governed by an MIT license
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| // that can be found in the LICENSE file.
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| 
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| module rand
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| 
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| #include <Security/SecRandom.h>
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| 
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| #flag darwin -framework Security
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| 
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| fn C.SecRandomCopyBytes() int
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| 
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| // read returns an array of `bytes_needed` random bytes read from the OS.
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| pub fn read(bytes_needed int) ?[]byte {
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| 	mut buffer := malloc(bytes_needed)
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| 	status := C.SecRandomCopyBytes(0, bytes_needed, buffer)
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| 	if status != 0 {
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| 		return read_error
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| 	}
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| 	return c_array_to_bytes_tmp(bytes_needed, buffer)
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| }
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