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-rw-r--r--src/libs/3rdparty/botan/src/lib/entropy/dev_random/dev_random.cpp123
1 files changed, 0 insertions, 123 deletions
diff --git a/src/libs/3rdparty/botan/src/lib/entropy/dev_random/dev_random.cpp b/src/libs/3rdparty/botan/src/lib/entropy/dev_random/dev_random.cpp
deleted file mode 100644
index 56552228a3..0000000000
--- a/src/libs/3rdparty/botan/src/lib/entropy/dev_random/dev_random.cpp
+++ /dev/null
@@ -1,123 +0,0 @@
-/*
-* Reader of /dev/random and company
-* (C) 1999-2009,2013 Jack Lloyd
-*
-* Botan is released under the Simplified BSD License (see license.txt)
-*/
-
-#include <botan/internal/dev_random.h>
-#include <botan/exceptn.h>
-
-#include <sys/types.h>
-#include <sys/select.h>
-#include <sys/stat.h>
-#include <unistd.h>
-#include <errno.h>
-#include <fcntl.h>
-
-namespace Botan {
-
-/**
-Device_EntropySource constructor
-Open a file descriptor to each (available) device in fsnames
-*/
-Device_EntropySource::Device_EntropySource(const std::vector<std::string>& fsnames)
- {
-#ifndef O_NONBLOCK
- #define O_NONBLOCK 0
-#endif
-
-#ifndef O_NOCTTY
- #define O_NOCTTY 0
-#endif
-
- const int flags = O_RDONLY | O_NONBLOCK | O_NOCTTY;
-
- m_max_fd = 0;
-
- for(auto fsname : fsnames)
- {
- int fd = ::open(fsname.c_str(), flags);
-
- if(fd < 0)
- {
- /*
- ENOENT or EACCES is normal as some of the named devices may not exist
- on this system. But any other errno value probably indicates
- either a bug in the application or file descriptor exhaustion.
- */
- if(errno != ENOENT && errno != EACCES)
- throw Exception("Opening OS RNG device failed with errno " +
- std::to_string(errno));
- }
- else
- {
- if(fd > FD_SETSIZE)
- {
- ::close(fd);
- throw Exception("Open of OS RNG succeeded but fd is too large for fd_set");
- }
-
- m_dev_fds.push_back(fd);
- m_max_fd = std::max(m_max_fd, fd);
- }
- }
- }
-
-/**
-Device_EntropySource destructor: close all open devices
-*/
-Device_EntropySource::~Device_EntropySource()
- {
- for(int fd : m_dev_fds)
- {
- // ignoring return value here, can't throw in destructor anyway
- ::close(fd);
- }
- }
-
-/**
-* Gather entropy from a RNG device
-*/
-size_t Device_EntropySource::poll(RandomNumberGenerator& rng)
- {
- size_t bits = 0;
-
- if(m_dev_fds.size() > 0)
- {
- fd_set read_set;
- FD_ZERO(&read_set);
-
- for(int dev_fd : m_dev_fds)
- {
- FD_SET(dev_fd, &read_set);
- }
-
- secure_vector<uint8_t> io_buf(BOTAN_SYSTEM_RNG_POLL_REQUEST);
-
- struct ::timeval timeout;
- timeout.tv_sec = (BOTAN_SYSTEM_RNG_POLL_TIMEOUT_MS / 1000);
- timeout.tv_usec = (BOTAN_SYSTEM_RNG_POLL_TIMEOUT_MS % 1000) * 1000;
-
- if(::select(m_max_fd + 1, &read_set, nullptr, nullptr, &timeout) > 0)
- {
- for(int dev_fd : m_dev_fds)
- {
- if(FD_ISSET(dev_fd, &read_set))
- {
- const ssize_t got = ::read(dev_fd, io_buf.data(), io_buf.size());
-
- if(got > 0)
- {
- rng.add_entropy(io_buf.data(), static_cast<size_t>(got));
- bits += got * 8;
- }
- }
- }
- }
- }
-
- return bits;
- }
-
-}