30 lines
546 B
Rust
30 lines
546 B
Rust
import libc::{c_uchar, c_int};
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#[link_name = "crypto"]
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#[abi = "cdecl"]
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native mod _native {
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fn RAND_bytes(buf: *c_uchar, num: c_int) -> c_int;
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}
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fn rand_bytes(len: uint) -> [u8] {
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let mut out = [];
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vec::reserve(out, len);
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vec::as_buf(out) { |out_buf|
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let r = _native::RAND_bytes(out_buf, len as c_int);
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if r != 1 as c_int { fail }
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unsafe { vec::unsafe::set_len(out, len); }
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}
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out
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}
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#[cfg(test)]
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mod tests {
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#[test]
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fn test_rand_bytes() {
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let _bytes = rand_bytes(5u);
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}
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}
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