48 lines
797 B
C
48 lines
797 B
C
#include <stdio.h>
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#include <string.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include <unistd.h>
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#include "tfdef.h"
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#include "tfprng.h"
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#define DATASIZE 65536
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static char data[DATASIZE];
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static char key[TFNG_KEY_SIZE];
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int main(int argc, char **argv)
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{
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int fd;
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char *randsource;
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if (argc > 1 && argv[1]) {
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if (!strcmp(argv[1], "-")) {
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fd = 0;
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goto _stdinrnd;
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}
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randsource = argv[1];
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}
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else randsource = "/dev/urandom";
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fd = open(randsource, O_RDONLY);
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if (fd != -1) {
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_stdinrnd: read(fd, key, sizeof(key));
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if (fd != 0) close(fd);
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}
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else {
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perror(argv[1]);
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return 1;
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}
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tfng_prng_seedkey(key);
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while (1) {
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tfng_prng_genrandom(data, DATASIZE);
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if (write(1, data, DATASIZE) == -1) return 1;
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}
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tfng_prng_seedkey(NULL);
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return 0;
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}
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