mirror of
https://github.com/gnif/LookingGlass.git
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44 lines
1.2 KiB
C
44 lines
1.2 KiB
C
/**
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* Looking Glass
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* Copyright © 2017-2026 The Looking Glass Authors
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* https://looking-glass.io
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the Free
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* Software Foundation; either version 2 of the License, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc., 59
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* Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include "common/random.h"
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#include <errno.h>
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#include <stdint.h>
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#include <sys/random.h>
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bool lgRandomBytes(void * buffer, size_t size)
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{
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uint8_t * output = buffer;
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while (size)
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{
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const ssize_t received = getrandom(output, size, 0);
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if (received < 0 && errno == EINTR)
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continue;
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if (received <= 0)
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return false;
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output += (size_t)received;
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size -= (size_t)received;
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}
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return true;
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}
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