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// Copyright (c) 2015 Ryan Prichard
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to
// deal in the Software without restriction, including without limitation the
// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
// sell copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
// IN THE SOFTWARE.
#include <windows.h>
#include <cassert>
#include <cctype>
#include <cstdio>
#include <cstdlib>
#include <cwchar>
#include <vector>
#include "../include/winpty.h"
#include "../shared/DebugClient.h"
static std::vector<unsigned char> filterContent(
const std::vector<unsigned char> &content) {
std::vector<unsigned char> result;
auto it = content.begin();
const auto itEnd = content.end();
while (it < itEnd) {
if (*it == '\r') {
// Filter out carriage returns. Sometimes the output starts with
// a single CR; other times, it has multiple CRs.
it++;
} else if (*it == '\x1b' && (it + 1) < itEnd && *(it + 1) == '[') {
// Filter out escape sequences. They have no interior letters and
// end with a single letter.
it += 2;
while (it < itEnd && !isalpha(*it)) {
it++;
}
it++;
} else {
// Let everything else through.
result.push_back(*it);
it++;
}
}
return result;
}
// Read bytes from the non-overlapped file handle until the file is closed or
// until an I/O error occurs.
static std::vector<unsigned char> readAll(HANDLE handle) {
unsigned char buf[1024];
std::vector<unsigned char> result;
while (true) {
DWORD amount = 0;
BOOL ret = ReadFile(handle, buf, sizeof(buf), &amount, nullptr);
if (!ret || amount == 0) {
break;
}
result.insert(result.end(), buf, buf + amount);
}
return result;
}
static void parentTest() {
wchar_t program[1024];
wchar_t cmdline[1024];
GetModuleFileNameW(nullptr, program, 1024);
{
// XXX: We'd like to use swprintf, which is part of C99 and takes a
// size_t maxlen argument. MinGW-w64 has this function, as does MSVC.
// The old MinGW doesn't, though -- instead, it apparently provides an
// swprintf taking no maxlen argument. This *might* be a regression?
// (There is also no swnprintf, but that function is obsolescent with a
// correct swprintf, and it isn't in POSIX or ISO C.)
//
// Visual C++ 6 also provided this non-conformant swprintf, and I'm
// guessing MSVCRT.DLL does too. (My impression is that the old MinGW
// prefers to rely on MSVCRT.DLL for convenience?)
//
// I could compile differently for old MinGW, but what if it fixes its
// function later? Instead, use a workaround. It's starting to make
// sense to drop MinGW support in favor of MinGW-w64. This is too
// annoying.
//
// grepbait: OLD-MINGW / WINPTY_TARGET_MSYS1
cmdline[0] = L'\0';
wcscat(cmdline, L"\"");
wcscat(cmdline, program);
wcscat(cmdline, L"\" CHILD");
}
// swnprintf(cmdline, sizeof(cmdline) / sizeof(cmdline[0]),
// L"\"%ls\" CHILD", program);
auto agentCfg = winpty_config_new(0, nullptr);
assert(agentCfg != nullptr);
auto pty = winpty_open(agentCfg, nullptr);
assert(pty != nullptr);
winpty_config_free(agentCfg);
HANDLE conin = CreateFileW(
winpty_conin_name(pty),
GENERIC_WRITE, 0, nullptr, OPEN_EXISTING, 0, nullptr);
HANDLE conout = CreateFileW(
winpty_conout_name(pty),
GENERIC_READ, 0, nullptr, OPEN_EXISTING, 0, nullptr);
assert(conin != INVALID_HANDLE_VALUE);
assert(conout != INVALID_HANDLE_VALUE);
auto spawnCfg = winpty_spawn_config_new(
WINPTY_SPAWN_FLAG_AUTO_SHUTDOWN, program, cmdline,
nullptr, nullptr, nullptr);
assert(spawnCfg != nullptr);
HANDLE process = nullptr;
BOOL spawnSuccess = winpty_spawn(
pty, spawnCfg, &process, nullptr, nullptr, nullptr);
assert(spawnSuccess && process != nullptr);
auto content = readAll(conout);
content = filterContent(content);
std::vector<unsigned char> expectedContent = {
'H', 'I', '\n', 'X', 'Y', '\n'
};
DWORD exitCode = 0;
assert(GetExitCodeProcess(process, &exitCode) && exitCode == 42);
CloseHandle(process);
CloseHandle(conin);
CloseHandle(conout);
assert(content == expectedContent);
winpty_free(pty);
}
static void childTest() {
printf("HI\nXY\n");
exit(42);
}
int main(int argc, char *argv[]) {
if (argc == 1) {
parentTest();
} else {
childTest();
}
return 0;
}
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