37 lines
793 B
C++
37 lines
793 B
C++
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#include <assert.h>
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#include <stdio.h>
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#include <stdlib.h>
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static FILE* randfp = nullptr;
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void close_randfp()
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{
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fclose(randfp);
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}
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extern "C"
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{
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int rand() // FIXME: This function is a dirty and extremely hacky way to get going, /dev/random should only be used
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// for initial seeding, userspace should do their own random calculations.
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{
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if (!randfp)
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{
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randfp = fopen("/dev/random", "rw");
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assert(randfp != nullptr);
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atexit(close_randfp);
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}
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int result;
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fread(&result, sizeof(result), 1, randfp);
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if (ferror(randfp))
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{
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perror("read(randfp)");
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abort();
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}
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return result;
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}
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void srand(unsigned int)
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{
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return;
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}
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}
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