Initial commit.
This commit is contained in:
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121
LICENSE.txt
Normal file
121
LICENSE.txt
Normal file
@ -0,0 +1,121 @@
|
||||
Creative Commons Legal Code
|
||||
|
||||
CC0 1.0 Universal
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CREATIVE COMMONS CORPORATION IS NOT A LAW FIRM AND DOES NOT PROVIDE
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LEGAL SERVICES. DISTRIBUTION OF THIS DOCUMENT DOES NOT CREATE AN
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ATTORNEY-CLIENT RELATIONSHIP. CREATIVE COMMONS PROVIDES THIS
|
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INFORMATION ON AN "AS-IS" BASIS. CREATIVE COMMONS MAKES NO WARRANTIES
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REGARDING THE USE OF THIS DOCUMENT OR THE INFORMATION OR WORKS
|
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PROVIDED HEREUNDER, AND DISCLAIMS LIABILITY FOR DAMAGES RESULTING FROM
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THE USE OF THIS DOCUMENT OR THE INFORMATION OR WORKS PROVIDED
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HEREUNDER.
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Statement of Purpose
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The laws of most jurisdictions throughout the world automatically confer
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exclusive Copyright and Related Rights (defined below) upon the creator
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These owners may contribute to the Commons to promote the ideal of a free
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European Parliament and of the Council of 11 March 1996 on the legal
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protection of databases, and under any national implementation
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thereof, including any amended or successor version of such
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directive); and
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vii. other similar, equivalent or corresponding rights throughout the
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world based on applicable law or treaty, and any national
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2. Waiver. To the greatest extent permitted by, but not in contravention
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equitable action to disrupt the quiet enjoyment of the Work by the public
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as contemplated by Affirmer's express Statement of Purpose.
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3. Public License Fallback. Should any part of the Waiver for any reason
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be judged legally invalid or ineffective under applicable law, then the
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Further, Affirmer disclaims responsibility for obtaining any necessary
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345
src/main.c
Normal file
345
src/main.c
Normal file
@ -0,0 +1,345 @@
|
||||
#include <stdlib.h>
|
||||
#include <stdio.h>
|
||||
#include <sys/types.h>
|
||||
#include <sys/stat.h>
|
||||
#include <errno.h>
|
||||
#include <direct.h>
|
||||
|
||||
#define WIN32_LEAN_AND_MEAN 1
|
||||
#include <Windows.h>
|
||||
|
||||
static const wchar_t *const JRE_RELATIVE_PATH = L"runtime\\bin\\javaw.exe";
|
||||
|
||||
/* ======================================================================== */
|
||||
/* String routines */
|
||||
/* ======================================================================== */
|
||||
|
||||
#define NOT_EMPTY(STR) ((STR) && ((STR)[0U]))
|
||||
|
||||
static wchar_t *awprintf(const wchar_t *const fmt, ...)
|
||||
{
|
||||
va_list ap;
|
||||
va_start(ap, fmt);
|
||||
|
||||
const int str_len = _vscwprintf(fmt, ap);
|
||||
if (str_len < 1)
|
||||
{
|
||||
return NULL;
|
||||
}
|
||||
|
||||
wchar_t *buffer = (wchar_t*) malloc(sizeof(wchar_t) * (((size_t)str_len) + 1U));
|
||||
if (!buffer)
|
||||
{
|
||||
return NULL;
|
||||
}
|
||||
|
||||
const int result = vswprintf(buffer, ((size_t)str_len) + 1U, fmt, ap);
|
||||
if (result < 1)
|
||||
{
|
||||
free(buffer);
|
||||
buffer = NULL;
|
||||
}
|
||||
|
||||
va_end(ap);
|
||||
return buffer;
|
||||
}
|
||||
|
||||
static wchar_t *wcsndup (const wchar_t *const str, const size_t n)
|
||||
{
|
||||
size_t str_len = wcslen(str);
|
||||
if (n < str_len)
|
||||
{
|
||||
str_len = n;
|
||||
}
|
||||
|
||||
wchar_t *const result = (wchar_t*) malloc(sizeof(wchar_t) * (str_len + 1U));
|
||||
if (!result)
|
||||
{
|
||||
return NULL;
|
||||
}
|
||||
|
||||
wcsncpy(result, str, str_len);
|
||||
result[str_len] = '\0';
|
||||
return result;
|
||||
}
|
||||
|
||||
/* ======================================================================== */
|
||||
/* File name routines */
|
||||
/* ======================================================================== */
|
||||
|
||||
static wchar_t *get_directory_part(const wchar_t *const path)
|
||||
{
|
||||
size_t lastsep = SIZE_MAX;
|
||||
|
||||
if(NOT_EMPTY(path))
|
||||
{
|
||||
for (size_t i = 0; path[i]; ++i)
|
||||
{
|
||||
if ((path[i] == L'\\') || (path[i] == L'/'))
|
||||
{
|
||||
lastsep = i;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
if (lastsep != SIZE_MAX)
|
||||
{
|
||||
return wcsndup(path, lastsep);
|
||||
}
|
||||
|
||||
return wcsdup(L".");
|
||||
}
|
||||
|
||||
static wchar_t *remove_file_extension(const wchar_t *const path)
|
||||
{
|
||||
size_t lastsep = SIZE_MAX;
|
||||
size_t lastdot = SIZE_MAX;
|
||||
|
||||
for (size_t i = 0; path[i]; ++i)
|
||||
{
|
||||
if ((path[i] == L'\\') || (path[i] == L'/'))
|
||||
{
|
||||
lastsep = i;
|
||||
}
|
||||
else if (path[i] == L'.')
|
||||
{
|
||||
lastdot = i;
|
||||
}
|
||||
}
|
||||
|
||||
if (lastdot != SIZE_MAX)
|
||||
{
|
||||
if((lastsep == SIZE_MAX) || (lastdot > lastsep))
|
||||
{
|
||||
return wcsndup(path, lastdot);
|
||||
}
|
||||
}
|
||||
|
||||
return wcsdup(path);
|
||||
}
|
||||
|
||||
static BOOL file_exists(const wchar_t *const filename) {
|
||||
struct _stat buffer;
|
||||
if (_wstat(filename, &buffer) == 0)
|
||||
{
|
||||
return S_ISDIR(buffer.st_mode) ? FALSE : TRUE;
|
||||
}
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
/* ======================================================================== */
|
||||
/* Path detection */
|
||||
/* ======================================================================== */
|
||||
|
||||
static const wchar_t *const DEFAULT_JARFILE_NAME = L"application.jar";
|
||||
|
||||
static const wchar_t *get_executable_path(void)
|
||||
{
|
||||
if (_wpgmptr && _wpgmptr[0U])
|
||||
{
|
||||
return wcsdup(_wpgmptr);
|
||||
}
|
||||
return NULL;
|
||||
}
|
||||
|
||||
static const wchar_t *get_executable_directory(const wchar_t *const executable_path)
|
||||
{
|
||||
const wchar_t *const directory_part = get_directory_part(executable_path);
|
||||
if (directory_part)
|
||||
{
|
||||
return directory_part;
|
||||
}
|
||||
|
||||
free((void*)directory_part);
|
||||
return wcsdup(L".");
|
||||
}
|
||||
|
||||
static const wchar_t *get_jarfile_path(const wchar_t *const executable_path, const wchar_t *const executable_directory)
|
||||
{
|
||||
const wchar_t *jarfile_path = NULL;
|
||||
|
||||
const wchar_t *const path_prefix = remove_file_extension(executable_path);
|
||||
if (NOT_EMPTY(path_prefix))
|
||||
{
|
||||
const size_t len = wcslen(path_prefix);
|
||||
if (!((len > 0U) && ((path_prefix[len-1U] == L'\\') || (path_prefix[len-1U] == L'/'))))
|
||||
{
|
||||
jarfile_path = awprintf(L"%ls.jar", path_prefix);
|
||||
}
|
||||
}
|
||||
|
||||
if (!jarfile_path)
|
||||
{
|
||||
jarfile_path = NOT_EMPTY(executable_directory) ? awprintf(L"%ls\\%ls", executable_directory, DEFAULT_JARFILE_NAME) : wcsdup(DEFAULT_JARFILE_NAME);
|
||||
}
|
||||
|
||||
free((void*)path_prefix);
|
||||
return jarfile_path;
|
||||
}
|
||||
|
||||
/* ======================================================================== */
|
||||
/* Path manipulation */
|
||||
/* ======================================================================== */
|
||||
|
||||
static const BOOL set_current_directory(const wchar_t *const path)
|
||||
{
|
||||
if(NOT_EMPTY(path))
|
||||
{
|
||||
if(iswalpha(path[0U]) && (path[1U] == L':') && (path[2U] == L'\0'))
|
||||
{
|
||||
const wchar_t root_path[4U] = { path[0U], L':', L'\\', L'\0' };
|
||||
return SetCurrentDirectoryW(root_path);
|
||||
}
|
||||
else
|
||||
{
|
||||
return SetCurrentDirectoryW(path);
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
return SetCurrentDirectoryW(L"\\");
|
||||
}
|
||||
}
|
||||
|
||||
/* ======================================================================== */
|
||||
/* Message box */
|
||||
/* ======================================================================== */
|
||||
|
||||
static const wchar_t *describe_system_error(const DWORD error_code)
|
||||
{
|
||||
const wchar_t *error_test = NULL, *buffer = NULL;
|
||||
|
||||
const DWORD len = FormatMessageW(FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_ALLOCATE_BUFFER |FORMAT_MESSAGE_IGNORE_INSERTS, NULL, error_code, MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), (LPWSTR)&buffer, 0, NULL);
|
||||
if((len > 0U) && NOT_EMPTY(buffer))
|
||||
{
|
||||
error_test = wcsdup(buffer);
|
||||
LocalFree((HLOCAL)buffer);
|
||||
}
|
||||
|
||||
return error_test;
|
||||
}
|
||||
|
||||
#define show_message(HWND, FLAGS, TITLE, TEXT) \
|
||||
{ \
|
||||
MessageBoxW((HWND), (TEXT), (TITLE), (FLAGS)); \
|
||||
} \
|
||||
while(0)
|
||||
|
||||
#define show_message_format(HWND, FLAGS, TITLE, FORMAT, ...) do \
|
||||
{ \
|
||||
const wchar_t *const _text = awprintf((FORMAT), __VA_ARGS__); \
|
||||
if(_text) \
|
||||
{ \
|
||||
MessageBoxW((HWND), _text, (TITLE), (FLAGS)); \
|
||||
} \
|
||||
free((void*)_text); \
|
||||
} \
|
||||
while(0)
|
||||
|
||||
/* ======================================================================== */
|
||||
/* MAIN */
|
||||
/* ======================================================================== */
|
||||
|
||||
int WINAPI wWinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, PWSTR pCmdLine, int nCmdShow)
|
||||
{
|
||||
int exit_code = -1;
|
||||
const wchar_t *executable_path = NULL, *executable_directory = NULL, *jarfile_path = NULL, *java_runtime_path = NULL, *command_line = NULL;
|
||||
STARTUPINFOW startup_info;
|
||||
PROCESS_INFORMATION process_info;
|
||||
|
||||
// Initialize
|
||||
SecureZeroMemory(&startup_info, sizeof(STARTUPINFOW));
|
||||
SecureZeroMemory(&process_info, sizeof(PROCESS_INFORMATION));
|
||||
|
||||
// Find executable path
|
||||
if(!(executable_path = get_executable_path()))
|
||||
{
|
||||
show_message(NULL, MB_ICONERROR | MB_SYSTEMMODAL, L"System Error", L"The path of the executable could not be determined!");
|
||||
goto cleanup;
|
||||
}
|
||||
|
||||
// Find executable directory
|
||||
if(!(executable_directory = get_executable_directory(executable_path)))
|
||||
{
|
||||
show_message(NULL, MB_ICONERROR | MB_SYSTEMMODAL, L"System Error", L"The executable directory could not be determined!");
|
||||
goto cleanup;
|
||||
}
|
||||
|
||||
// Set the current directory
|
||||
if(_wcsicmp(executable_directory, L".") != 0)
|
||||
{
|
||||
set_current_directory(executable_directory);
|
||||
}
|
||||
|
||||
// Find the JAR file path
|
||||
if(!(jarfile_path = get_jarfile_path(executable_path, executable_directory)))
|
||||
{
|
||||
show_message(NULL, MB_ICONERROR | MB_SYSTEMMODAL, L"System Error", L"The path of the JAR file could not be determined!");
|
||||
goto cleanup;
|
||||
}
|
||||
|
||||
// Find the Java runtime path
|
||||
if(!(java_runtime_path = awprintf(L"%ls\\%ls", executable_directory, JRE_RELATIVE_PATH)))
|
||||
{
|
||||
show_message(NULL, MB_ICONERROR | MB_SYSTEMMODAL, L"System Error", L"The path of the Java runtime could not be determined!");
|
||||
goto cleanup;
|
||||
}
|
||||
|
||||
// Does JAR file exist?
|
||||
if(!file_exists(jarfile_path))
|
||||
{
|
||||
show_message_format(NULL, MB_ICONERROR | MB_SYSTEMMODAL, L"JAR not found", L"The required JAR file could not be found:\n\n%ls\n\n\nRe-installing the application may fix the problem!", jarfile_path);
|
||||
goto cleanup;
|
||||
}
|
||||
|
||||
// Does the Java runtime exist?
|
||||
if(!file_exists(java_runtime_path))
|
||||
{
|
||||
show_message_format(NULL, MB_ICONERROR | MB_SYSTEMMODAL, L"Java not found", L"The required Java runtime could not be found:\n\n%ls\n\n\nRe-installing the application may fix the problem!", java_runtime_path);
|
||||
goto cleanup;
|
||||
}
|
||||
|
||||
// Build the command-line
|
||||
command_line = NOT_EMPTY(pCmdLine) ? awprintf(L"\"%ls\" -jar \"%ls\" %ls", java_runtime_path, jarfile_path, pCmdLine) : awprintf(L"\"%ls\" -jar \"%ls\"", java_runtime_path, jarfile_path);
|
||||
if(!command_line)
|
||||
{
|
||||
show_message(NULL, MB_ICONERROR | MB_SYSTEMMODAL, L"System Error", L"The Java command-line could not be generated!");
|
||||
goto cleanup;
|
||||
}
|
||||
|
||||
// Now actually start the process!
|
||||
if(!CreateProcessW(NULL, (LPWSTR)command_line, NULL, NULL, FALSE, 0U, NULL, executable_directory, &startup_info, &process_info))
|
||||
{
|
||||
const wchar_t *const error_text = describe_system_error(GetLastError());
|
||||
if(error_text)
|
||||
{
|
||||
show_message_format(NULL, MB_ICONERROR | MB_SYSTEMMODAL, L"System Error", L"Failed to create the Java process:\n\n%ls\n\n\n%ls", command_line, error_text);
|
||||
free((void*)error_text);
|
||||
}
|
||||
else
|
||||
{
|
||||
show_message_format(NULL, MB_ICONERROR | MB_SYSTEMMODAL, L"System Error", L"Failed to create the Java process:\n\n%ls", command_line);
|
||||
}
|
||||
goto cleanup;
|
||||
}
|
||||
|
||||
cleanup:
|
||||
|
||||
if(process_info.hThread)
|
||||
{
|
||||
CloseHandle(process_info.hThread);
|
||||
}
|
||||
|
||||
if(process_info.hProcess)
|
||||
{
|
||||
CloseHandle(process_info.hProcess);
|
||||
}
|
||||
|
||||
free((void*)command_line);
|
||||
free((void*)java_runtime_path);
|
||||
free((void*)jarfile_path);
|
||||
free((void*)executable_directory);
|
||||
free((void*)executable_path);
|
||||
|
||||
return exit_code;
|
||||
}
|
||||
Loading…
Reference in New Issue
Block a user