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git/compat/win32/git-wrapper.c
Christophe Bucher b85db5b1b9 git-wrapper: do not let the Ctrl-C event kill the wrapper 
... while waiting for the child process to finish.

The Git wrapper serves, among other things, as git-cmd.exe. In that
role, its primary purpose is to provide an interactive cmd window that
knows where to find Git.

A secondary use of git-cmd.exe is to be able to launch other console
processes that know about Git, e.g. when ConsoleZ wants to call an
interactive Bash (it cannot call git-bash.exe because that would open a
new MinTTY window). To this end, git-cmd.exe supports the --command=...
command-line option. The interactive bash would be called like this:

	git-cmd --command=usr\bin\bash.exe -l -i

The command-line arguments after the --command=... options are simply
passed through to the command itself. If no --command=... option is
specified, git-cmd.exe defaults to cmd.exe.

Once git-cmd.exe is launched, it finds the top-level directory of the
Git for Windows installation and then launches the command as a child
process. And this is where things get a little bit tricky: When the user
presses CTRL-C, the cmd window receives WM_KEYDOWN/WM_KEYUP messages
which are then handled by the TranslateMessage function that generates a
CTRL-C event that is sent to the console processes running in the
console window (i.e. both git-cmd.exe and the child process).

If no Console Ctrl Handlers have been registered, the git-cmd.exe
process will simply be terminated, without having waited for the
interactive Bash to quit (it does not quit, of course, because it
handles Ctrl+C by terminating any process launched from within the
Bash). Now both cmd and the Bash compete for user input.

Luckily, the solution is very easy: the Win32 API sports a
SetConsoleCtrlHandler() function to register/unregister Console Ctrl
Handlers. When the NULL pointer is registered as "handler", it "causes
the calling process to ignore CTRL+C input":

https://msdn.microsoft.com/en-us/library/windows/desktop/ms686016.aspx

This is exactly what we need here: while waiting for the child processes
to finish, the git-cmd.exe process itself should not be interruptible by
the user. Immediately after the child process terminates, we unregister
the Console Ctrl Handler.

Note: we need to be careful with changes to the Git wrapper as it serves
many other purposes in addition to git-cmd.exe. For example, it serves
as the cmd\git.exe as well as all of the git-<builtin>.exe stand-ins.
So do we want the same Ctrl+C behavior even in those instances? Yes: If
the user interrupts using Ctrl+C, the child process should terminate
before the Git wrapper.

Also note: We cannot override the Console Ctrl Handler with a function
that simply always returns TRUE: this would prevent the console window
opened via git-cmd.exe from closing, since the Console Ctrl Handler
*also* handles "signals generated by the system when the user closes the
console, logs off, or shuts down the system."

[jes: changed the patch to conform with the surrounding coding style, to
pass NULL as Console Ctrl Handler and unregister it as soon as
appropriate, fixed commit message to be more accurate and informative,
added link to the SetConsoleCtrlHandler() documentation.]

This fixes https://github.com/git-for-windows/git/pull/205

Signed-off-by: Christophe Bucher Developer <christophe.bucher@laposte.net>
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2016-02-18 17:03:50 +01:00

679 lines
17 KiB
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/*
* git-wrapper - replace cmd\git.cmd with an executable
*
* Copyright (C) 2012 Pat Thoyts <patthoyts@users.sourceforge.net>
*/
#define STRICT
#define WIN32_LEAN_AND_MEAN
#define UNICODE
#define _UNICODE
#include <windows.h>
#include <shlwapi.h>
#include <shellapi.h>
#include <stdio.h>
#include <wchar.h>
static WCHAR msystem_bin[64];
static void print_error(LPCWSTR prefix, DWORD error_number)
{
LPWSTR buffer = NULL;
DWORD count = 0;
count = FormatMessageW(FORMAT_MESSAGE_ALLOCATE_BUFFER
| FORMAT_MESSAGE_FROM_SYSTEM
| FORMAT_MESSAGE_IGNORE_INSERTS,
NULL, error_number, LANG_NEUTRAL,
(LPTSTR)&buffer, 0, NULL);
if (count < 1)
count = FormatMessageW(FORMAT_MESSAGE_ALLOCATE_BUFFER
| FORMAT_MESSAGE_FROM_STRING
| FORMAT_MESSAGE_ARGUMENT_ARRAY,
L"Code 0x%1!08x!",
0, LANG_NEUTRAL, (LPTSTR)&buffer, 0,
(va_list*)&error_number);
fwprintf(stderr, L"%s: %s", prefix, buffer);
LocalFree((HLOCAL)buffer);
}
static void setup_environment(LPWSTR top_level_path, int full_path)
{
WCHAR msystem[64];
LPWSTR path2 = NULL;
int len;
/* Set MSYSTEM */
swprintf(msystem, sizeof(msystem),
L"MINGW%d", (int) sizeof(void *) * 8);
SetEnvironmentVariable(L"MSYSTEM", msystem);
/* if not set, set PLINK_PROTOCOL to ssh */
if (!GetEnvironmentVariable(L"PLINK_PROTOCOL", NULL, 0))
SetEnvironmentVariable(L"PLINK_PROTOCOL", L"ssh");
/*
* set HOME to %HOMEDRIVE%%HOMEPATH% or %USERPROFILE%
* With roaming profiles: HOMEPATH is the roaming location and
* USERPROFILE is the local location
*/
if (!GetEnvironmentVariable(L"HOME", NULL, 0)) {
LPWSTR e = NULL;
len = GetEnvironmentVariable(L"HOMEPATH", NULL, 0);
if (len) {
DWORD attr, drvlen = GetEnvironmentVariable(L"HOMEDRIVE", NULL, 0);
e = (LPWSTR)malloc(sizeof(WCHAR) * (drvlen + len));
drvlen = GetEnvironmentVariable(L"HOMEDRIVE", e, drvlen);
GetEnvironmentVariable(L"HOMEPATH", e + drvlen, len);
/* check if the path exists */
attr = GetFileAttributesW(e);
if (attr != INVALID_FILE_ATTRIBUTES
&& (attr & FILE_ATTRIBUTE_DIRECTORY))
SetEnvironmentVariable(L"HOME", e);
else
len = 0; /* use USERPROFILE */
free(e);
}
if (len == 0) {
len = GetEnvironmentVariable(L"USERPROFILE", NULL, 0);
if (len != 0) {
e = (LPWSTR)malloc(len * sizeof(WCHAR));
GetEnvironmentVariable(L"USERPROFILE", e, len);
SetEnvironmentVariable(L"HOME", e);
free(e);
}
}
}
/* extend the PATH */
len = GetEnvironmentVariable(L"PATH", NULL, 0);
len = sizeof(WCHAR) * (len + 3 * MAX_PATH);
path2 = (LPWSTR)malloc(len);
wcscpy(path2, top_level_path);
if (!full_path)
PathAppend(path2, L"cmd;");
else {
PathAppend(path2, msystem_bin);
if (_waccess(path2, 0) != -1) {
/* We are in an MSys2-based setup */
int len2 = GetEnvironmentVariable(L"HOME", NULL, 0);
wcscat(path2, L";");
wcscat(path2, top_level_path);
PathAppend(path2, L"usr\\bin;");
if (len2 + 6 < MAX_PATH) {
GetEnvironmentVariable(L"HOME",
path2 + wcslen(path2), len2);
PathAppend(path2, L"bin;");
}
}
else {
/* Fall back to MSys1 paths */
wcscpy(path2, top_level_path);
PathAppend(path2, L"bin;");
wcscat(path2, top_level_path);
PathAppend(path2, L"mingw\\bin;");
}
}
GetEnvironmentVariable(L"PATH", path2 + wcslen(path2),
(len / sizeof(WCHAR)) - wcslen(path2));
SetEnvironmentVariable(L"PATH", path2);
free(path2);
}
/*
* Fix up the command line to call git.exe
* We have to be very careful about quoting here so we just
* trim off the first argument and replace it leaving the rest
* untouched.
*/
static LPWSTR fixup_commandline(LPWSTR exepath, LPWSTR *exep, int *wait,
LPWSTR prefix_args, int prefix_args_len, int is_git_command,
int skip_arguments, int append_quote_to_cmdline)
{
int wargc = 0;
LPWSTR cmd = NULL, cmdline = NULL;
LPWSTR *wargv = NULL, p = NULL;
cmdline = GetCommandLine();
wargv = CommandLineToArgvW(cmdline, &wargc);
cmd = (LPWSTR)malloc(sizeof(WCHAR) *
(wcslen(cmdline) + prefix_args_len + 1 + MAX_PATH +
append_quote_to_cmdline));
if (prefix_args) {
if (is_git_command)
_swprintf(cmd, L"\"%s\\%s\" %.*s", exepath, L"git.exe",
prefix_args_len, prefix_args);
else
_swprintf(cmd, L"%.*s", prefix_args_len, prefix_args);
}
else
wcscpy(cmd, L"git.exe");
/* skip wargv[0], append the remaining arguments */
++skip_arguments;
if (skip_arguments < wargc) {
int i;
for (i = 0, p = cmdline; p && *p && i < skip_arguments; i++) {
if (i)
while (isspace(*p))
p++;
if (*p == L'"')
p++;
p += wcslen(wargv[i]);
if (*p == L'"')
p++;
while (*p && !isspace(*p))
p++;
}
wcscat(cmd, p);
}
if (append_quote_to_cmdline)
wcscat(cmd, L"\"");
if (wargc > 1 && !wcscmp(wargv[1], L"gui"))
*wait = 0;
LocalFree(wargv);
return cmd;
}
static int strip_prefix(LPWSTR str, int *len, LPCWSTR prefix)
{
LPWSTR start = str;
do {
if (str - start > *len)
return 0;
if (!*prefix) {
*len -= str - start;
memmove(start, str,
sizeof(WCHAR) * (wcslen(str) + 1));
return 1;
}
} while (*str++ == *prefix++);
return 0;
}
static void extract_first_arg(LPWSTR command_line, LPWSTR exepath, LPWSTR buf)
{
LPWSTR *wargv;
int wargc;
wargv = CommandLineToArgvW(command_line, &wargc);
if (wargc < 1) {
fwprintf(stderr, L"Invalid command-line: '%s'\n", command_line);
exit(1);
}
if (*wargv[0] == L'\\' ||
(isalpha(*wargv[0]) && wargv[0][1] == L':'))
wcscpy(buf, wargv[0]);
else {
wcscpy(buf, exepath);
PathAppend(buf, wargv[0]);
}
LocalFree(wargv);
}
#define alloc_nr(x) (((x)+16)*3/2)
static LPWSTR expand_variables(LPWSTR buffer, size_t alloc)
{
LPWSTR buf = buffer;
size_t len = wcslen(buf), move_len;
for (;;) {
LPWSTR atat = wcsstr(buf, L"@@"), atat2;
WCHAR save;
int env_len, delta;
if (!atat)
break;
atat2 = wcsstr(atat + 2, L"@@");
if (!atat2)
break;
*atat2 = L'\0';
atat2 += 2;
env_len = GetEnvironmentVariable(atat + 2, NULL, 0);
delta = env_len - 1 - (atat2 - atat);
if (len + delta >= alloc) {
LPWSTR buf2;
alloc = alloc_nr(alloc);
if (alloc <= len + delta)
alloc = len + delta + 1;
if (buf != buffer)
buf2 = realloc(buf, sizeof(WCHAR) * alloc);
else {
buf2 = malloc(sizeof(WCHAR) * alloc);
if (buf2)
memcpy(buf2, buf, sizeof(WCHAR)
* (len + 1));
}
if (!buf2) {
fwprintf(stderr,
L"Substituting '%s' results in too "
L"large a command-line\n", atat + 2);
exit(1);
}
atat += buf2 - buf;
atat2 += buf2 - buf;
buf = buf2;
}
move_len = sizeof(WCHAR) * (len + 1 - (atat2 - buf));
if (delta > 0)
memmove(atat2 + delta, atat2, move_len);
len += delta;
save = atat[env_len - 1 + (delta < 0 ? -delta : 0)];
GetEnvironmentVariable(atat + 2, atat, env_len);
if (delta < 0)
memmove(atat2 + delta, atat2, move_len);
atat[env_len - 1] = save;
}
return buf;
}
static void set_app_id(LPWSTR app_id)
{
HMODULE shell32;
HRESULT (*set_app_id)(LPWSTR app_id);
shell32 = LoadLibrary(L"shell32.dll");
if (!shell32)
return;
set_app_id = (void *) GetProcAddress(shell32,
"SetCurrentProcessExplicitAppUserModelID");
if (!set_app_id)
return;
if (!SUCCEEDED(set_app_id(app_id)))
print_error(L"warning: could not set app ID", GetLastError());
}
static int configure_via_resource(LPWSTR basename, LPWSTR exepath, LPWSTR exep,
LPWSTR *prefix_args, int *prefix_args_len,
int *is_git_command, LPWSTR *working_directory, int *full_path,
int *skip_arguments, int *allocate_console, int *show_console,
int *append_quote_to_cmdline)
{
int i, id, minimal_search_path, needs_a_console, no_hide, wargc;
int append_quote;
LPWSTR *wargv;
WCHAR *app_id;
#define BUFSIZE 65536
static WCHAR buf[BUFSIZE];
LPWSTR buf2 = buf;
int len;
for (id = 0; ; id++) {
minimal_search_path = 0;
needs_a_console = 0;
no_hide = 0;
append_quote = 0;
app_id = NULL;
len = LoadString(NULL, id, buf, BUFSIZE);
if (!len) {
if (!id)
return 0; /* no resources found */
fwprintf(stderr, L"Need a valid command-line; "
L"Edit the string resources accordingly\n");
exit(1);
}
if (len >= BUFSIZE) {
fwprintf(stderr,
L"Could not read resource (too large)\n");
exit(1);
}
for (;;) {
if (strip_prefix(buf, &len, L"MINIMAL_PATH=1 "))
minimal_search_path = 1;
else if (strip_prefix(buf, &len, L"ALLOC_CONSOLE=1 "))
needs_a_console = 1;
else if (strip_prefix(buf, &len, L"SHOW_CONSOLE=1 "))
no_hide = 1;
else if (strip_prefix(buf, &len, L"APPEND_QUOTE=1 "))
append_quote = 1;
else if (strip_prefix(buf, &len, L"APP_ID=")) {
LPWSTR space = wcschr(buf, L' ');
size_t app_id_len = space - buf;
if (!space) {
len -= 7;
memmove(buf, buf + 7,
len * sizeof(WCHAR));
break;
}
app_id = wcsdup(buf);
app_id[app_id_len] = L'\0';
len -= app_id_len + 1;
memmove(buf, buf + app_id_len + 1,
len * sizeof(WCHAR));
}
else
break;
}
buf[len] = L'\0';
if (!id)
SetEnvironmentVariable(L"EXEPATH", exepath);
buf2 = expand_variables(buf, BUFSIZE);
extract_first_arg(buf2, exepath, exep);
if (_waccess(exep, 0) != -1)
break;
fwprintf(stderr,
L"Skipping command-line '%s'\n('%s' not found)\n",
buf2, exep);
if (app_id)
free(app_id);
}
*prefix_args = buf2;
*prefix_args_len = wcslen(buf2);
*is_git_command = 0;
wargv = CommandLineToArgvW(GetCommandLine(), &wargc);
for (i = 1; i < wargc; i++) {
if (!wcscmp(L"--no-cd", wargv[i]))
*working_directory = NULL;
else if (!wcscmp(L"--cd-to-home", wargv[i]))
*working_directory = (LPWSTR) 1;
else if (!wcsncmp(L"--cd=", wargv[i], 5))
*working_directory = wcsdup(wargv[i] + 5);
else if (!wcscmp(L"--minimal-search-path", wargv[i]))
minimal_search_path = 1;
else if (!wcscmp(L"--no-minimal-search-path", wargv[i]))
minimal_search_path = 0;
else if (!wcscmp(L"--needs-console", wargv[i]))
needs_a_console = 1;
else if (!wcscmp(L"--no-needs-console", wargv[i]))
needs_a_console = 0;
else if (!wcscmp(L"--hide", wargv[i]))
no_hide = 0;
else if (!wcscmp(L"--no-hide", wargv[i]))
no_hide = 1;
else if (!wcscmp(L"--append-quote", wargv[i]))
append_quote = 1;
else if (!wcscmp(L"--no-append-quote", wargv[i]))
append_quote = -1;
else if (!wcsncmp(L"--command=", wargv[i], 10)) {
LPWSTR expanded;
wargv[i] += 10;
expanded = expand_variables(wargv[i], wcslen(wargv[i]));
if (expanded == wargv[i])
expanded = wcsdup(expanded);
extract_first_arg(expanded, exepath, exep);
*prefix_args = expanded;
*prefix_args_len = wcslen(*prefix_args);
*skip_arguments = i;
break;
}
else if (!wcsncmp(L"--app-id=", wargv[i], 9)) {
free(app_id);
app_id = wcsdup(wargv[i] + 9);
}
else
break;
*skip_arguments = i;
}
if (minimal_search_path)
*full_path = 0;
if (needs_a_console)
*allocate_console = 1;
if (no_hide)
*show_console = 1;
if (append_quote)
*append_quote_to_cmdline = append_quote == 1;
if (app_id)
set_app_id(app_id);
LocalFree(wargv);
return 1;
}
static void initialize_top_level_path(LPWSTR top_level_path, LPWSTR exepath,
LPWSTR msystem_bin, int strip_count)
{
wcscpy(top_level_path, exepath);
while (strip_count) {
if (strip_count < 0) {
int len = wcslen(top_level_path);
PathAppend(top_level_path, msystem_bin);
if (_waccess(top_level_path, 0) != -1) {
/* We are in an MSys2-based setup */
top_level_path[len] = L'\0';
return;
}
top_level_path[len] = L'\0';
PathAppend(top_level_path, L"mingw\\bin");
if (_waccess(top_level_path, 0) != -1) {
/* We are in an MSys-based setup */
top_level_path[len] = L'\0';
return;
}
top_level_path[len] = L'\0';
if (!(++strip_count)) {
fwprintf(stderr, L"Top-level not found: %s\n",
exepath);
exit(1);
}
}
if (!PathRemoveFileSpec(top_level_path)) {
fwprintf(stderr, L"Invalid executable path: %s\n",
exepath);
ExitProcess(1);
}
if (strip_count > 0)
--strip_count;
}
}
int main(void)
{
int r = 1, wait = 1, prefix_args_len = -1, needs_env_setup = 1,
is_git_command = 1, full_path = 1, skip_arguments = 0,
allocate_console = 0, show_console = 0,
append_quote_to_cmdline = 0;
WCHAR exepath[MAX_PATH], exe[MAX_PATH], top_level_path[MAX_PATH];
LPWSTR cmd = NULL, exep = exe, prefix_args = NULL, basename;
LPWSTR working_directory = NULL;
/* Determine MSys2-based Git path. */
swprintf(msystem_bin, sizeof(msystem_bin),
L"mingw%d\\bin", (int) sizeof(void *) * 8);
*top_level_path = L'\0';
/* get the installation location */
GetModuleFileName(NULL, exepath, MAX_PATH);
if (!PathRemoveFileSpec(exepath)) {
fwprintf(stderr, L"Invalid executable path: %s\n", exepath);
ExitProcess(1);
}
basename = exepath + wcslen(exepath) + 1;
if (configure_via_resource(basename, exepath, exep,
&prefix_args, &prefix_args_len,
&is_git_command, &working_directory,
&full_path, &skip_arguments, &allocate_console,
&show_console, &append_quote_to_cmdline)) {
/* do nothing */
}
else if (!wcsicmp(basename, L"git-gui.exe")) {
static WCHAR buffer[BUFSIZE];
wait = 0;
allocate_console = 1;
initialize_top_level_path(top_level_path, exepath, NULL, 1);
/* set the default exe module */
wcscpy(exe, top_level_path);
PathAppend(exe, msystem_bin);
PathAppend(exe, L"wish.exe");
if (_waccess(exe, 0) != -1)
swprintf(buffer, BUFSIZE,
L"\"%s\\%.*s\\libexec\\git-core\"",
top_level_path,
wcslen(msystem_bin) - 4, msystem_bin);
else {
wcscpy(exe, top_level_path);
PathAppend(exe, L"mingw\\bin\\wish.exe");
swprintf(buffer, BUFSIZE,
L"\"%s\\mingw\\libexec\\git-core\"",
top_level_path);
}
PathAppend(buffer, L"git-gui");
prefix_args = buffer;
prefix_args_len = wcslen(buffer);
}
else if (!wcsnicmp(basename, L"git-", 4)) {
needs_env_setup = 0;
/* Call a builtin */
prefix_args = basename + 4;
prefix_args_len = wcslen(prefix_args);
if (!wcsicmp(prefix_args + prefix_args_len - 4, L".exe"))
prefix_args_len -= 4;
/* set the default exe module */
wcscpy(exe, exepath);
PathAppend(exe, L"git.exe");
}
else if (!wcsicmp(basename, L"git.exe")) {
initialize_top_level_path(top_level_path, exepath, NULL, 1);
/* set the default exe module */
wcscpy(exe, top_level_path);
PathAppend(exe, msystem_bin);
PathAppend(exe, L"git.exe");
if (_waccess(exe, 0) == -1) {
wcscpy(exe, top_level_path);
PathAppend(exe, L"bin\\git.exe");
}
}
else if (!wcsicmp(basename, L"gitk.exe")) {
static WCHAR buffer[BUFSIZE];
allocate_console = 1;
initialize_top_level_path(top_level_path, exepath, NULL, 1);
/* set the default exe module */
wcscpy(exe, top_level_path);
swprintf(buffer, BUFSIZE, L"\"%s\"", top_level_path);
PathAppend(exe, msystem_bin);
PathAppend(exe, L"wish.exe");
if (_waccess(exe, 0) != -1)
PathAppend(buffer, msystem_bin);
else {
wcscpy(exe, top_level_path);
PathAppend(exe, L"mingw\\bin\\wish.exe");
PathAppend(buffer, L"mingw\\bin");
}
PathAppend(buffer, L"gitk");
prefix_args = buffer;
prefix_args_len = wcslen(buffer);
}
if (needs_env_setup) {
if (!top_level_path[0])
initialize_top_level_path(top_level_path, exepath,
msystem_bin, -4);
setup_environment(top_level_path, full_path);
}
cmd = fixup_commandline(exepath, &exep, &wait,
prefix_args, prefix_args_len, is_git_command, skip_arguments,
append_quote_to_cmdline);
if (working_directory == (LPWSTR)1) {
int len = GetEnvironmentVariable(L"HOME", NULL, 0);
if (len) {
working_directory = malloc(sizeof(WCHAR) * len);
GetEnvironmentVariable(L"HOME", working_directory, len);
}
}
{
STARTUPINFO si;
PROCESS_INFORMATION pi;
DWORD creation_flags = CREATE_UNICODE_ENVIRONMENT;
HANDLE console_handle;
BOOL br = FALSE;
ZeroMemory(&pi, sizeof(PROCESS_INFORMATION));
ZeroMemory(&si, sizeof(STARTUPINFO));
si.cb = sizeof(STARTUPINFO);
if (allocate_console | show_console)
creation_flags |= CREATE_NEW_CONSOLE;
else if ((console_handle = CreateFile(L"CONOUT$", GENERIC_WRITE,
FILE_SHARE_WRITE, NULL, OPEN_EXISTING,
FILE_ATTRIBUTE_NORMAL, NULL)) !=
INVALID_HANDLE_VALUE)
CloseHandle(console_handle);
else {
#define STD_HANDLE(field, id) si.hStd##field = GetStdHandle(STD_##id); if (!si.hStd##field) si.hStd##field = INVALID_HANDLE_VALUE
STD_HANDLE(Input, INPUT_HANDLE);
STD_HANDLE(Output, OUTPUT_HANDLE);
STD_HANDLE(Error, ERROR_HANDLE);
si.dwFlags = STARTF_USESTDHANDLES;
creation_flags |= CREATE_NO_WINDOW;
}
if (show_console) {
si.dwFlags |= STARTF_USESHOWWINDOW;
si.wShowWindow = SW_SHOW;
}
br = CreateProcess(/* module: null means use command line */
exep,
cmd, /* modified command line */
NULL, /* process handle inheritance */
NULL, /* thread handle inheritance */
/* handles inheritable? */
allocate_console ? FALSE : TRUE,
creation_flags,
NULL, /* environment: use parent */
working_directory, /* use parent's */
&si, &pi);
if (br) {
if (wait) {
/*
* Ignore Ctrl+C: the called process needs
* to handle this event correctly, then we
* quit, too.
*/
SetConsoleCtrlHandler(NULL, TRUE);
WaitForSingleObject(pi.hProcess, INFINITE);
SetConsoleCtrlHandler(NULL, FALSE);
}
if (!GetExitCodeProcess(pi.hProcess, (DWORD *)&r))
print_error(L"error reading exit code",
GetLastError());
CloseHandle(pi.hProcess);
}
else {
print_error(L"error launching git", GetLastError());
r = 1;
}
}
free(cmd);
ExitProcess(r);
}
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