8db32cc2ac
random_device::random_device(const string&) wrongly assumes that open can only validly return a file descriptor greater than zero. This results in random_device believing that it didn't successfully open the device causing it to throw in it's constructor, this ends up leaking a file descriptor. The fix is simple, don't error on file descriptors which are zero. git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@210060 91177308-0d34-0410-b5e6-96231b3b80d8
50 lines
1.0 KiB
C++
50 lines
1.0 KiB
C++
//===----------------------------------------------------------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is dual licensed under the MIT and the University of Illinois Open
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// Source Licenses. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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// <random>
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// class random_device;
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// explicit random_device(const string& token = "/dev/urandom");
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#include <random>
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#include <cassert>
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#include <unistd.h>
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int main()
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{
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try
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{
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std::random_device r("wrong file");
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assert(false);
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}
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catch (const std::system_error& e)
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{
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}
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{
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std::random_device r;
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}
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{
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int ec;
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ec = close(STDIN_FILENO);
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assert(!ec);
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ec = close(STDOUT_FILENO);
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assert(!ec);
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ec = close(STDERR_FILENO);
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assert(!ec);
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std::random_device r;
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}
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{
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std::random_device r("/dev/urandom");;
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}
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{
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std::random_device r("/dev/random");;
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}
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}
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