19 行
352 B
C
19 行
352 B
C
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#include "rng.h"
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#include <stdlib.h>
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#include <unistd.h>
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#include <fcntl.h>
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void randombytes(void *x, size_t l)
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{
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static int fd = -1;
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ssize_t n;
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if (fd < 0 && 0 > (fd = open("/dev/urandom", O_RDONLY)))
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exit(1);
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for (size_t i = 0; i < l; i += n)
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if (0 >= (n = read(fd, (char *) x + i, l - i)))
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exit(2);
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}
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