mirror of
https://github.com/boostorg/process.git
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7e5dd4075f
* Implement OpenBSD Executable PatH * Static Cast Device and iNode * Add Name Spaces to Exe Checker * Strings to File System Paths --------- Co-authored-by: freebsd <freebsd@freebsd.lan>
529 lines
12 KiB
C++
529 lines
12 KiB
C++
// Copyright (c) 2022 Klemens D. Morgenstern
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//
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// Distributed under the Boost Software License, Version 1.0. (See accompanying
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// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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#include <boost/process/v2/detail/config.hpp>
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#if defined(BOOST_PROCESS_V2_WINDOWS)
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#include <boost/asio/windows/basic_object_handle.hpp>
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#endif
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#include <boost/process/v2/detail/last_error.hpp>
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#include <boost/process/v2/detail/throw_error.hpp>
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#include <boost/process/v2/ext/detail/proc_info.hpp>
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#include <boost/process/v2/ext/env.hpp>
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#if defined(BOOST_PROCESS_V2_WINDOWS)
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#include <windows.h>
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#include <shellapi.h>
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#else
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#include <cstdlib>
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#endif
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#if (defined(__APPLE__) && defined(__MACH__))
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#include <TargetConditionals.h>
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#if !TARGET_OS_IOS
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#include <algorithm>
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#include <sys/proc_info.h>
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#include <sys/sysctl.h>
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#include <libproc.h>
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#endif
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#endif
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#if (defined(__linux__) || defined(__ANDROID__))
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#include <cstdio>
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#endif
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#if defined(__FreeBSD__)
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#include <algorithm>
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#include <cstring>
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#include <fcntl.h>
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#include <kvm.h>
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#include <sys/param.h>
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#include <sys/sysctl.h>
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#include <sys/user.h>
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#endif
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#if defined(__DragonFly__)
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#include <algorithm>
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#include <cstring>
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#include <sys/types.h>
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#include <kvm.h>
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#endif
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#if defined(__NetBSD__)
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#include <algorithm>
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#include <cstring>
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#include <fcntl.h>
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#include <kvm.h>
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#include <sys/param.h>
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#include <sys/sysctl.h>
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#endif
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#if defined(__OpenBSD__)
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#include <algorithm>
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#include <cstring>
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#include <sys/param.h>
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#include <sys/sysctl.h>
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#include <fcntl.h>
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#include <kvm.h>
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#endif
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#if defined(__sun)
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#include <algorithm>
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#include <cstdlib>
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#include <cstring>
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#include <kvm.h>
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#include <fcntl.h>
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#include <sys/param.h>
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#include <sys/time.h>
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#include <sys/user.h>
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#include <sys/proc.h>
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#endif
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BOOST_PROCESS_V2_BEGIN_NAMESPACE
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namespace detail {
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namespace ext {
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#if defined(BOOST_PROCESS_V2_WINDOWS)
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void native_env_handle_deleter::operator()(native_env_handle_type h) const
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{
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delete [] h;
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}
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native_env_iterator next(native_env_iterator nh)
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{
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while (*nh != L'\0')
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nh ++;
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return ++nh ;
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}
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native_env_iterator find_end(native_env_iterator nh)
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{
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while (*nh - 1 != L'\0' && *nh != L'\0')
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nh ++;
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return nh ;
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}
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const environment::char_type * dereference(native_env_iterator iterator)
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{
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return iterator;
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}
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#elif (defined(__linux__) || defined(__ANDROID__))
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//linux stores this as a blob with an EOF at the end
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void native_env_handle_deleter::operator()(native_env_handle_type h) const
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{
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delete [] h;
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}
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native_env_iterator next(native_env_iterator nh)
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{
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while (*nh != '\0')
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nh ++;
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return ++nh ;
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}
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native_env_iterator find_end(native_env_iterator nh)
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{
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while (*nh != EOF)
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nh ++;
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return nh ;
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}
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const environment::char_type * dereference(native_env_iterator iterator)
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{
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return iterator;
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}
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#elif (defined(__APPLE___) || defined(__MACH__)) || defined(__FreeBSD__) || defined(__DragonFly__) || defined(__NetBSD__) || defined(__OpenBSD__) || defined(__sun)
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void native_env_handle_deleter::operator()(native_env_handle_type h) const
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{
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delete [] h;
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}
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native_env_iterator next(native_env_iterator nh)
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{
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while (*nh != '\0')
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nh ++;
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return ++nh ;
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}
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native_env_iterator find_end(native_env_iterator nh)
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{
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while (*nh - 1 != '\0' && *nh != '\0')
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nh ++;
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return nh ;
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}
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const environment::char_type * dereference(native_env_iterator iterator)
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{
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return iterator;
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}
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#endif
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}
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}
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namespace ext
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{
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#if defined(BOOST_PROCESS_V2_WINDOWS)
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env_view env(HANDLE proc, boost::system::error_code & ec)
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{
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wchar_t *buffer = nullptr;
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PEB peb;
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SIZE_T nRead = 0;
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ULONG len = 0;
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PROCESS_BASIC_INFORMATION pbi;
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detail::ext::RTL_USER_PROCESS_PARAMETERS_EXTENDED upp;
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NTSTATUS status = 0;
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PVOID buf = nullptr;
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status = NtQueryInformationProcess(proc, ProcessBasicInformation, &pbi, sizeof(pbi), &len);
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ULONG error = RtlNtStatusToDosError(status);
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if (error)
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{
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BOOST_PROCESS_V2_ASSIGN_EC(ec, error, system_category());
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return {};
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}
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if (!ReadProcessMemory(proc, pbi.PebBaseAddress, &peb, sizeof(peb), &nRead))
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{
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BOOST_PROCESS_V2_ASSIGN_LAST_ERROR(ec);
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return {};
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}
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if (!ReadProcessMemory(proc, peb.ProcessParameters, &upp, sizeof(upp), &nRead))
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{
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BOOST_PROCESS_V2_ASSIGN_LAST_ERROR(ec);
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return {};
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}
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env_view ev;
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buf = upp.Environment;
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len = (ULONG)upp.EnvironmentSize;
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ev.handle_.reset(new wchar_t[len / 2 + 1]());
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if (!ReadProcessMemory(proc, buf, ev.handle_.get(), len, &nRead))
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{
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BOOST_PROCESS_V2_ASSIGN_LAST_ERROR(ec);
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return {};
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}
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ev.handle_.get()[len / 2] = L'\0';
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return ev;
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}
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env_view env(HANDLE handle)
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{
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boost::system::error_code ec;
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auto res = env(handle, ec);
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if (ec)
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detail::throw_error(ec, "env");
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return res;
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}
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env_view env(boost::process::v2::pid_type pid, boost::system::error_code & ec)
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{
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struct del
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{
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void operator()(HANDLE h)
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{
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::CloseHandle(h);
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};
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};
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std::unique_ptr<void, del> proc{detail::ext::open_process_with_debug_privilege(pid, ec)};
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if (proc == nullptr)
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BOOST_PROCESS_V2_ASSIGN_LAST_ERROR(ec);
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else
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return env(proc.get(), ec);
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return {};
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}
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#elif (defined(__APPLE___) || defined(__MACH__)) && !TARGET_OS_IOS
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env_view env(boost::process::v2::pid_type pid, boost::system::error_code & ec)
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{
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int mib[3] = {CTL_KERN, KERN_ARGMAX, 0};
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int argmax = 0;
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auto size = sizeof(argmax);
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if (sysctl(mib, 2, &argmax, &size, nullptr, 0) == -1)
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{
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BOOST_PROCESS_V2_ASSIGN_LAST_ERROR(ec);
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return {};
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}
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std::string procargs;
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procargs.resize(argmax - 1);
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mib[1] = KERN_PROCARGS2;
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mib[2] = pid;
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size = argmax;
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if (sysctl(mib, 3, &*procargs.begin(), &size, nullptr, 0) != 0)
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{
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BOOST_PROCESS_V2_ASSIGN_LAST_ERROR(ec);
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return {};
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}
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std::uint32_t nargs;
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memcpy(&nargs, &*procargs.begin(), sizeof(nargs));
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char *cp = &*procargs.begin() + sizeof(nargs);
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for (; cp < &*procargs.end(); cp++)
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if (*cp == '\0')
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break;
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if (cp == &procargs[size])
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return {};
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for (; cp < &*procargs.end(); cp++)
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if (*cp != '\0') break;
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if (cp == &*procargs.end())
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return {};
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int i = 0;
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char *sp = cp;
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std::vector<char> vec;
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while ((*sp != '\0' || i < nargs) && sp < &*procargs.end()) {
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if (i >= nargs)
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vec.push_back(*sp);
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sp += 1;
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}
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env_view ev;
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ev.handle_.reset(new char[vec.size()]());
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std::copy(vec.begin(), vec.end(), ev.handle_.get());
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return ev;
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}
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#elif (defined(__linux__) || defined(__ANDROID__))
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env_view env(boost::process::v2::pid_type pid, boost::system::error_code & ec)
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{
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std::size_t size = 0;
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std::unique_ptr<char, detail::ext::native_env_handle_deleter> procargs{};
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int f = ::open(("/proc/" + std::to_string(pid) + "/environ").c_str(), O_RDONLY);
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while (!procargs || procargs.get()[size - 1] != EOF)
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{
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std::unique_ptr<char, detail::ext::native_env_handle_deleter> buf{new char[size + 4096]};
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if (size > 0)
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std::memmove(buf.get(), procargs.get(), size);
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auto r = ::read(f, buf.get() + size, 4096);
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if (r < 0)
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{
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BOOST_PROCESS_V2_ASSIGN_LAST_ERROR(ec);
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::close(f);
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return {};
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}
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procargs = std::move(buf);
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size += r;
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if (r < 4096) // done!
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{
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procargs.get()[size] = EOF;
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break;
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}
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}
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::close(f);
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env_view ev;
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ev.handle_ = std::move(procargs);
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return ev;
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}
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#elif defined(__FreeBSD__) || defined(__DragonFly__)
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env_view env(boost::process::v2::pid_type pid, boost::system::error_code & ec)
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{
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std::vector<char> vec;
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int cntp = 0;
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kinfo_proc *proc_info = nullptr;
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const char *nlistf, *memf;
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nlistf = memf = "/dev/null";
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struct closer
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{
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void operator()(kvm_t * kd)
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{
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kvm_close(kd);
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}
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};
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std::unique_ptr<kvm_t, closer> kd{kvm_openfiles(nlistf, memf, nullptr, O_RDONLY, nullptr)};
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if (!kd) {BOOST_PROCESS_V2_ASSIGN_LAST_ERROR(ec); return {};}
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if ((proc_info = kvm_getprocs(kd.get(), KERN_PROC_PID, pid, &cntp))) {
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char **env = kvm_getenvv(kd.get(), proc_info, 0);
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if (env) {
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for (int i = 0; env[i] != nullptr; i++)
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{
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for (int j = 0; j < strlen(env[i]); j++)
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vec.push_back(env[i][j]);
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vec.push_back('\0');
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}
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vec.push_back('\0');
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}
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else
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BOOST_PROCESS_V2_ASSIGN_LAST_ERROR(ec);
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}
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else
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BOOST_PROCESS_V2_ASSIGN_LAST_ERROR(ec);
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env_view ev;
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ev.handle_.reset(new char[vec.size()]());
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std::copy(vec.begin(), vec.end(), ev.handle_.get());
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return ev;
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}
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#elif defined(__NetBSD__)
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env_view env(boost::process::v2::pid_type pid, boost::system::error_code & ec)
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{
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std::vector<char> vec;
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int cntp = 0;
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kinfo_proc2 *proc_info = nullptr;
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struct closer
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{
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void operator()(kvm_t * kd)
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{
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kvm_close(kd);
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}
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};
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std::unique_ptr<kvm_t, closer> kd{kvm_openfiles(nullptr, nullptr, nullptr, KVM_NO_FILES, nullptr)};
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if (!kd) {BOOST_PROCESS_V2_ASSIGN_LAST_ERROR(ec); return {};}
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if ((proc_info = kvm_getproc2(kd.get(), KERN_PROC_PID, pid, sizeof(struct kinfo_proc2), &cntp))) {
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char **env = kvm_getenvv2(kd.get(), proc_info, 0);
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if (env) {
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for (int i = 0; env[i] != nullptr; i++)
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{
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for (int j = 0; j < strlen(env[i]); j++)
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vec.push_back(env[i][j]);
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vec.push_back('\0');
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}
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vec.push_back('\0');
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}
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else
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BOOST_PROCESS_V2_ASSIGN_LAST_ERROR(ec);
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}
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else
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BOOST_PROCESS_V2_ASSIGN_LAST_ERROR(ec);
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env_view ev;
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ev.handle_.reset(new char[vec.size()]());
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std::copy(vec.begin(), vec.end(), ev.handle_.get());
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return ev;
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}
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#elif defined(__OpenBSD__)
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env_view env(boost::process::v2::pid_type pid, boost::system::error_code & ec)
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{
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std::vector<char> vec;
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int cntp = 0;
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kinfo_proc *proc_info = nullptr;
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struct closer
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{
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void operator()(kvm_t * kd)
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{
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kvm_close(kd);
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}
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};
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std::unique_ptr<kvm_t, closer> kd{kvm_openfiles(nullptr, nullptr, nullptr, KVM_NO_FILES, nullptr)};
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if (!kd) {BOOST_PROCESS_V2_ASSIGN_LAST_ERROR(ec); return {};}
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if ((proc_info = kvm_getprocs(kd.get(), KERN_PROC_PID, pid, sizeof(struct kinfo_proc), &cntp)))
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{
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char **env = kvm_getenvv(kd.get(), proc_info, 0);
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if (env)
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{
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for (int i = 0; env[i] != nullptr; i++)
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{
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for (int j = 0; j < strlen(env[i]); j++)
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vec.push_back(env[i][j]);
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vec.push_back('\0');
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}
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vec.push_back('\0');
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}
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else
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BOOST_PROCESS_V2_ASSIGN_LAST_ERROR(ec);
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}
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else
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BOOST_PROCESS_V2_ASSIGN_LAST_ERROR(ec);
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env_view ev;
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ev.handle_.reset(new char[vec.size()]());
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std::copy(vec.begin(), vec.end(), ev.handle_.get());
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return ev;
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}
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#elif defined(__sun)
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env_view env(boost::process::v2::pid_type pid, boost::system::error_code & ec)
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{
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std::vector<char> vec;
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char **env = nullptr;
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proc *proc_info = nullptr;
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user *proc_user = nullptr;
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struct closer
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{
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void operator()(kvm_t * kd)
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{
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kvm_close(kd);
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}
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};
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std::unique_ptr<kvm_t, closer> kd{kvm_open(nullptr, nullptr, nullptr, O_RDONLY, nullptr)};
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if (!kd) {BOOST_PROCESS_V2_ASSIGN_LAST_ERROR(ec); return {};}
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if ((proc_info = kvm_getproc(kd.get(), pid)))
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{
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if ((proc_user = kvm_getu(kd.get(), proc_info)))
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{
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if (!kvm_getcmd(kd.get(), proc_info, proc_user, nullptr, &env))
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{
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for (int i = 0; env[i] != nullptr; i++)
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{
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for (int j = 0; j < strlen(env[i]); j++)
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vec.push_back(env[i][j]);
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vec.push_back('\0');
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}
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vec.push_back('\0');
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free(env);
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}
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else
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BOOST_PROCESS_V2_ASSIGN_LAST_ERROR(ec);
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}
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else
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BOOST_PROCESS_V2_ASSIGN_LAST_ERROR(ec);
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}
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else
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BOOST_PROCESS_V2_ASSIGN_LAST_ERROR(ec);
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env_view ev;
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ev.handle_.reset(new char[vec.size()]());
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std::copy(vec.begin(), vec.end(), ev.handle_.get());
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return ev;
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}
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#endif
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env_view env(boost::process::v2::pid_type pid)
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{
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boost::system::error_code ec;
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auto res = env(pid, ec);
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if (ec)
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detail::throw_error(ec, "env");
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return res;
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}
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}
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BOOST_PROCESS_V2_END_NAMESPACE
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