Added thirdparty: boost library

thirdparty/include/boost/process/v2/ext/impl/exe.ipp

@@ -0,0 +1,193 @@
+// Copyright (c) 2022 Klemens D. Morgenstern
+// Copyright (c) 2022 Samuel Venable
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+#ifndef BOOST_PROCESS_V2_IMPL_EXE_IPP
+#define BOOST_PROCESS_V2_IMPL_EXE_IPP
+
+#include <boost/process/v2/detail/config.hpp>
+#include <boost/process/v2/detail/last_error.hpp>
+#include <boost/process/v2/detail/throw_error.hpp>
+#include <boost/process/v2/ext/detail/proc_info.hpp>
+#include <boost/process/v2/ext/exe.hpp>
+
+#include <string>
+#include <vector>
+
+#if defined(BOOST_PROCESS_V2_WINDOWS)
+#include <windows.h>
+#else
+#include <climits>
+#endif
+
+#if (defined(__APPLE__) && defined(__MACH__))
+#include <sys/proc_info.h>
+#include <libproc.h>
+#endif
+
+#if (defined(BOOST_PROCESS_V2_WINDOWS) || defined(__linux__) || defined(__ANDROID__) || defined(__sun))
+#include <cstdlib>
+#endif
+
+#if (defined(__FreeBSD__) || defined(__DragonFly__) || defined(__NetBSD__))
+#include <sys/types.h>
+#include <sys/sysctl.h>
+#if !defined(__FreeBSD__)
+#include <alloca.h>
+#endif
+#endif
+
+#if defined(__OpenBSD__)
+#include <boost/process/v2/ext/cwd.hpp>
+#include <boost/process/v2/ext/cmd.hpp>
+#include <boost/process/v2/ext/env.hpp>
+#include <boost/algorithm/string.hpp>
+#include <boost/algorithm/string/split.hpp>
+#include <boost/algorithm/string/classification.hpp>
+#include <sys/types.h>
+#include <sys/param.h>
+#include <sys/sysctl.h>
+#include <kvm.h>
+#endif
+
+BOOST_PROCESS_V2_BEGIN_NAMESPACE
+
+namespace ext {
+
+#if defined(BOOST_PROCESS_V2_WINDOWS)
+
+filesystem::path exe(HANDLE process_handle)
+{
+    boost::system::error_code ec;
+    auto res = exe(process_handle, ec);
+    if (ec)
+        detail::throw_error(ec, "exe");
+    return res;
+}
+
+
+filesystem::path exe(HANDLE proc, boost::system::error_code & ec)
+{
+    wchar_t buffer[MAX_PATH];
+    // On input, specifies the size of the lpExeName buffer, in characters.
+    DWORD size = MAX_PATH;
+    if (QueryFullProcessImageNameW(proc, 0, buffer, &size))
+    {
+        return filesystem::canonical(buffer, ec);
+    }
+    else
+        BOOST_PROCESS_V2_ASSIGN_LAST_ERROR(ec)
+
+    return "";
+}
+
+filesystem::path exe(boost::process::v2::pid_type pid, boost::system::error_code & ec)
+{
+    if (pid == GetCurrentProcessId())
+    {
+        wchar_t buffer[MAX_PATH];
+        if (GetModuleFileNameW(nullptr, buffer, sizeof(buffer))) 
+        {
+            return filesystem::canonical(buffer, ec);
+        }
+    } 
+    else 
+    {
+        struct del
+        {
+            void operator()(HANDLE h)
+            {
+                ::CloseHandle(h);
+            };
+        };
+        std::unique_ptr<void, del> proc{detail::ext::open_process_with_debug_privilege(pid, ec)};
+        if (proc == nullptr)
+            BOOST_PROCESS_V2_ASSIGN_LAST_ERROR(ec)
+        else
+            return exe(proc.get(), ec);
+    }
+    return "";
+}
+
+#elif (defined(__APPLE__) && defined(__MACH__))
+
+filesystem::path exe(boost::process::v2::pid_type pid, boost::system::error_code & ec)
+{
+    char buffer[PROC_PIDPATHINFO_MAXSIZE];
+    if (proc_pidpath(pid, buffer, sizeof(buffer)) > 0) 
+    {
+        return filesystem::canonical(buffer, ec);
+    }
+    BOOST_PROCESS_V2_ASSIGN_LAST_ERROR(ec)
+    return "";
+}
+
+#elif (defined(__linux__) || defined(__ANDROID__) || defined(__sun))
+
+filesystem::path exe(boost::process::v2::pid_type pid, boost::system::error_code & ec)
+{
+#if (defined(__linux__) || defined(__ANDROID__))
+    return filesystem::canonical(
+            filesystem::path("/proc") / std::to_string(pid) / "exe", ec
+            );
+#elif defined(__sun)
+    return fileystem::canonical(
+            filesystem::path("/proc") / std::to_string(pid) / "path/a.out", ec
+            );
+#endif
+}
+
+#elif (defined(__FreeBSD__) || defined(__DragonFly__) || defined(__NetBSD__))
+
+filesystem::path exe(boost::process::v2::pid_type pid, boost::system::error_code & ec)
+{
+#if (defined(__FreeBSD__) || defined(__DragonFly__))
+    int mib[4] = {CTL_KERN, KERN_PROC, KERN_PROC_PATHNAME, pid};
+#elif defined(__NetBSD__)
+    int mib[4] = {CTL_KERN, KERN_PROC_ARGS, pid, KERN_PROC_PATHNAME};
+#endif
+    std::size_t len = 0;
+    if (sysctl(mib, 4, nullptr, &len, nullptr, 0) == 0) 
+    {
+        std::string strbuff;
+        strbuff.resize(len);
+        if (sysctl(mib, 4, &strbuff[0], &len, nullptr, 0) == 0)
+        {
+            strbuff.resize(len - 1);
+            return filesystem::canonical(strbuff, ec);
+        }
+    }
+
+    BOOST_PROCESS_V2_ASSIGN_LAST_ERROR(ec)
+    return "";
+}
+
+#elif defined(__OpenBSD__)
+
+filesystem::path exe(boost::process::v2::pid_type pid, boost::system::error_code & ec)
+{
+    BOOST_PROCESS_V2_ASSIGN_EC(ec, ENOTSUP, boost::system::system_category())
+    return "";
+}
+
+#else
+#error "Platform not supported"
+#endif
+
+filesystem::path exe(boost::process::v2::pid_type pid)
+{
+    boost::system::error_code ec;
+    auto res = exe(pid, ec);
+    if (ec)
+        detail::throw_error(ec, "exe");
+    return res;
+}
+
+
+} // namespace ext
+
+BOOST_PROCESS_V2_END_NAMESPACE
+
+#endif // BOOST_PROCESS_V2_IMPL_EXE_IPP
+