kaguya
22 lines
443 B
C++
22 lines
443 B
C++
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#include <sys/random.h>
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#include <bits/ensure.h>
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#include <mlibc/debug.hpp>
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#include <mlibc/posix-sysdeps.hpp>
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#include <errno.h>
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ssize_t getrandom(void *buffer, size_t max_size, unsigned int flags) {
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if(flags & ~(GRND_RANDOM | GRND_NONBLOCK)) {
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errno = EINVAL;
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return -1;
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}
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MLIBC_CHECK_OR_ENOSYS(mlibc::sys_getentropy, -1);
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if(int e = mlibc::sys_getentropy(buffer, max_size); e) {
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errno = e;
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return -1;
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}
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return max_size;
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}
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