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nsis20.exe
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nsExec
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nsexec.c
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C/C++ Source or Header
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2004-01-31
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12KB
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419 lines
/*
Copyright (c) 2002 Robert Rainwater <rrainwater@yahoo.com>
This software is provided 'as-is', without any express or implied
warranty. In no event will the authors be held liable for any damages
arising from the use of this software.
Permission is granted to anyone to use this software for any purpose,
including commercial applications, and to alter it and redistribute it
freely, subject to the following restrictions:
1. The origin of this software must not be misrepresented; you must not
claim that you wrote the original software. If you use this software
in a product, an acknowledgment in the product documentation would be
appreciated but is not required.
2. Altered source versions must be plainly marked as such, and must not be
misrepresented as being the original software.
3. This notice may not be removed or altered from any source distribution.
*/
#include <windows.h>
#include <commctrl.h>
#include <Winnt.h>
#include "../exdll/exdll.h"
#ifndef true
#define true TRUE
#endif
#ifndef false
#define false FALSE
#endif
#define LOOPTIMEOUT 100
HWND g_hwndParent;
HWND g_hwndList;
char * g_exec;
unsigned int g_to;
void ExecScript(BOOL log);
void LogMessage(const char *pStr);
char *my_strstr(char *a, char *b);
unsigned int my_atoi(char *s);
void __declspec(dllexport) Exec(HWND hwndParent, int string_size, char *variables, stack_t **stacktop) {
g_hwndParent=hwndParent;
EXDLL_INIT();
{
ExecScript(0);
}
}
void __declspec(dllexport) ExecToLog(HWND hwndParent, int string_size, char *variables, stack_t **stacktop) {
g_hwndParent=hwndParent;
EXDLL_INIT();
{
ExecScript(1);
}
}
void __declspec(dllexport) ExecToStack(HWND hwndParent, int string_size, char *variables, stack_t **stacktop) {
g_hwndParent=hwndParent;
EXDLL_INIT();
{
ExecScript(2);
}
}
HINSTANCE g_hInst;
BOOL WINAPI DllMain(HANDLE hInst, ULONG ul_reason_for_call, LPVOID lpReserved) {
g_hInst = hInst;
return TRUE;
}
#define TAB_REPLACE " "
#define TAB_REPLACE_SIZE (sizeof(TAB_REPLACE)-1)
// Turn a pair of chars into a word
// Turn four chars into a dword
#ifdef __BIG_ENDIAN__ // Not very likely, but, still...
#define CHAR2_TO_WORD(a,b) (((WORD)(b))|((a)<<8))
#define CHAR4_TO_DWORD(a,b,c,d) (((DWORD)CHAR2_TO_WORD(c,d))|(CHAR2_TO_WORD(a,b)<<16))
#else
#define CHAR2_TO_WORD(a,b) (((WORD)(a))|((b)<<8))
#define CHAR4_TO_DWORD(a,b,c,d) (((DWORD)CHAR2_TO_WORD(a,b))|(CHAR2_TO_WORD(c,d)<<16))
#endif
void ExecScript(int log) {
char szRet[128] = "";
char *pExec;
int nComSpecSize;
char meDLLPath[MAX_PATH];
char *p;
nComSpecSize = GetModuleFileName(g_hInst, meDLLPath, MAX_PATH);
p = meDLLPath + nComSpecSize - 1;
g_exec = (char *)GlobalAlloc(GPTR, sizeof(char)*g_stringsize+nComSpecSize+1);
do
{
if (*p == '\\')
break;
p = CharPrev(meDLLPath, p);
}
while (p > meDLLPath);
if (p == meDLLPath)
{
// bad path
lstrcpy(szRet, "error");
goto done;
}
*p = 0;
GetTempFileName(meDLLPath, "ns", 0, g_exec);
*p = '\\';
if (CopyFile(meDLLPath, g_exec, FALSE))
{
HANDLE hFile, hMapping;
LPBYTE pMapView;
PIMAGE_NT_HEADERS pNTHeaders;
hFile = CreateFile(g_exec, GENERIC_READ|GENERIC_WRITE, 0, NULL, OPEN_EXISTING,0, 0);
hMapping = CreateFileMapping(hFile, NULL, PAGE_READWRITE, 0, 0, NULL);
pMapView = MapViewOfFile(hMapping, FILE_MAP_WRITE, 0, 0, 0);
if (pMapView)
{
pNTHeaders = (PIMAGE_NT_HEADERS)(pMapView + ((PIMAGE_DOS_HEADER)pMapView)->e_lfanew);
pNTHeaders->FileHeader.Characteristics = IMAGE_FILE_32BIT_MACHINE | IMAGE_FILE_LOCAL_SYMS_STRIPPED |
IMAGE_FILE_LINE_NUMS_STRIPPED | IMAGE_FILE_EXECUTABLE_IMAGE;
pNTHeaders->OptionalHeader.Subsystem = IMAGE_SUBSYSTEM_WINDOWS_CUI;
pNTHeaders->OptionalHeader.AddressOfEntryPoint = (DWORD)WinMain - (DWORD)g_hInst;
UnmapViewOfFile(pMapView);
}
CloseHandle(hMapping);
CloseHandle(hFile);
}
g_to = 0; // default is no timeout
g_hwndList = FindWindowEx(FindWindowEx(g_hwndParent,NULL,"#32770",NULL),NULL,"SysListView32",NULL);
pExec = g_exec + nComSpecSize;
while ( !*(pExec-1) ) pExec--;
*pExec = ' ';
pExec++;
popstring(pExec);
if (my_strstr(pExec, "/TIMEOUT=")) {
char *szTimeout = pExec + 9;
g_to = my_atoi(szTimeout);
popstring(pExec);
}
if (!g_exec[0])
{
lstrcpy(szRet, "error");
goto done;
}
{
STARTUPINFO si={sizeof(si),};
SECURITY_ATTRIBUTES sa={sizeof(sa),};
SECURITY_DESCRIPTOR sd={0,};
PROCESS_INFORMATION pi={0,};
OSVERSIONINFO osv={sizeof(osv)};
HANDLE newstdout=0,read_stdout=0;
DWORD dwRead = 1;
DWORD dwExit = !STILL_ACTIVE;
DWORD dwLastOutput;
static char szBuf[1024];
HGLOBAL hUnusedBuf;
char *szUnusedBuf = 0;
if (log) {
hUnusedBuf = GlobalAlloc(GHND, log & 2 ? g_stringsize : sizeof(szBuf)*4);
if (!hUnusedBuf) {
lstrcpy(szRet, "error");
goto done;
}
szUnusedBuf = (char *)GlobalLock(hUnusedBuf);
}
GetVersionEx(&osv);
if (osv.dwPlatformId == VER_PLATFORM_WIN32_NT) {
InitializeSecurityDescriptor(&sd,SECURITY_DESCRIPTOR_REVISION);
SetSecurityDescriptorDacl(&sd,true,NULL,false);
sa.lpSecurityDescriptor = &sd;
}
else
sa.lpSecurityDescriptor = NULL;
sa.bInheritHandle = true;
if (!CreatePipe(&read_stdout,&newstdout,&sa,0)) {
lstrcpy(szRet, "error");
goto done;
}
GetStartupInfo(&si);
si.dwFlags = STARTF_USESTDHANDLES|STARTF_USESHOWWINDOW;
si.wShowWindow = SW_HIDE;
si.hStdInput = GetStdHandle(STD_INPUT_HANDLE);
si.hStdOutput = newstdout;
si.hStdError = newstdout;
if (!CreateProcess(NULL,g_exec,NULL,NULL,TRUE,CREATE_NEW_CONSOLE,NULL,NULL,&si,&pi)) {
lstrcpy(szRet, "error");
goto done;
}
dwLastOutput = GetTickCount();
while (dwExit == STILL_ACTIVE || dwRead) {
PeekNamedPipe(read_stdout, 0, 0, 0, &dwRead, NULL);
if (dwRead) {
dwLastOutput = GetTickCount();
ReadFile(read_stdout, szBuf, sizeof(szBuf)-1, &dwRead, NULL);
szBuf[dwRead] = 0;
if (log) {
char *p, *p2;
SIZE_T iReqLen = lstrlen(szBuf) + lstrlen(szUnusedBuf);
if (GlobalSize(hUnusedBuf) < iReqLen && (iReqLen < g_stringsize || !(log & 2))) {
GlobalUnlock(hUnusedBuf);
hUnusedBuf = GlobalReAlloc(hUnusedBuf, iReqLen+sizeof(szBuf), GHND);
if (!hUnusedBuf) {
lstrcpy(szRet, "error");
break;
}
szUnusedBuf = (char *)GlobalLock(hUnusedBuf);
}
p = szUnusedBuf; // get the old left overs
if (iReqLen < g_stringsize || !(log & 2)) lstrcat(p, szBuf);
else {
lstrcpyn(p + lstrlen(p), szBuf, g_stringsize - lstrlen(p));
}
if (!(log & 2)) {
while (p = my_strstr(p, "\t")) {
if ((int)(p - szUnusedBuf) > (int)(GlobalSize(hUnusedBuf) - TAB_REPLACE_SIZE - 1))
{
*p++ = ' ';
}
else
{
int len = lstrlen(p);
char *c_out=(char*)p+TAB_REPLACE_SIZE+len;
char *c_in=(char *)p+len;
while (len-- > 0) {
*c_out--=*c_in--;
}
lstrcpy(p, TAB_REPLACE);
p += TAB_REPLACE_SIZE;
*p = ' ';
}
}
p = szUnusedBuf; // get the old left overs
for (p2 = p; *p2;) {
if (*p2 == '\r') {
*p2++ = 0;
continue;
}
if (*p2 == '\n') {
*p2 = 0;
while (!*p && p != p2) p++;
LogMessage(p);
p = ++p2;
continue;
}
p2 = CharNext(p2);
}
// If data was taken out from the unused buffer, move p contents to the start of szUnusedBuf
if (p != szUnusedBuf) {
char *p2 = szUnusedBuf;
while (*p) *p2++ = *p++;
*p2 = 0;
}
}
}
}
else {
if (g_to && GetTickCount() > dwLastOutput+g_to) {
TerminateProcess(pi.hProcess, -1);
lstrcpy(szRet, "timeout");
}
else Sleep(LOOPTIMEOUT);
}
GetExitCodeProcess(pi.hProcess, &dwExit);
if (dwExit != STILL_ACTIVE) {
PeekNamedPipe(read_stdout, 0, 0, 0, &dwRead, NULL);
}
}
done:
if (log & 2) pushstring(szUnusedBuf);
if (log & 1 && *szUnusedBuf) LogMessage(szUnusedBuf);
if ( dwExit == STATUS_ILLEGAL_INSTRUCTION )
lstrcpy(szRet, "error");
if (!szRet[0]) wsprintf(szRet,"%d",dwExit);
pushstring(szRet);
CloseHandle(pi.hThread);
CloseHandle(pi.hProcess);
CloseHandle(newstdout);
CloseHandle(read_stdout);
*(pExec-1) = '\0';
DeleteFile(g_exec);
GlobalFree(g_exec);
if (log) {
GlobalUnlock(hUnusedBuf);
GlobalFree(hUnusedBuf);
}
}
}
// Tim Kosse's LogMessage
void LogMessage(const char *pStr) {
LVITEM item={0};
int nItemCount;
if (!g_hwndList) return;
//if (!lstrlen(pStr)) return;
nItemCount=SendMessage(g_hwndList, LVM_GETITEMCOUNT, 0, 0);
item.mask=LVIF_TEXT;
item.pszText=(char *)pStr;
item.cchTextMax=0;
item.iItem=nItemCount;
ListView_InsertItem(g_hwndList, &item);
ListView_EnsureVisible(g_hwndList, item.iItem, 0);
}
char *my_strstr(char *a, char *b)
{
int l = lstrlen(b);
while (lstrlen(a) >= l)
{
char c = a[l];
a[l] = 0;
if (!lstrcmpi(a, b))
{
a[l] = c;
return a;
}
a[l] = c;
a = CharNext(a);
}
return NULL;
}
unsigned int my_atoi(char *s) {
unsigned int v=0;
if (*s == '0' && (s[1] == 'x' || s[1] == 'X')) {
s+=2;
for (;;) {
int c=*s++;
if (c >= '0' && c <= '9') c-='0';
else if (c >= 'a' && c <= 'f') c-='a'-10;
else if (c >= 'A' && c <= 'F') c-='A'-10;
else break;
v<<=4;
v+=c;
}
}
else if (*s == '0' && s[1] <= '7' && s[1] >= '0') {
s++;
for (;;) {
int c=*s++;
if (c >= '0' && c <= '7') c-='0';
else break;
v<<=3;
v+=c;
}
}
else {
for (;;) {
int c=*s++ - '0';
if (c < 0 || c > 9) break;
v*=10;
v+=c;
}
}
return (int)v;
}
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow)
{
DWORD Ret;
STARTUPINFO si = {0};
PROCESS_INFORMATION pi = {0};
char command_line[1024];
char seekchar=' ';
char *cmdline;
si.cb = sizeof(si);
// Make child process use this app's standard files. Not needed !??
//si.dwFlags = STARTF_USESTDHANDLES;
//si.hStdInput = GetStdHandle (STD_INPUT_HANDLE);
//si.hStdOutput = GetStdHandle (STD_OUTPUT_HANDLE);
//si.hStdError = GetStdHandle (STD_ERROR_HANDLE);
lstrcpyn(command_line, GetCommandLine(), 1024);
cmdline = command_line;
if (*cmdline == '\"') seekchar = *cmdline++;
while (*cmdline && *cmdline != seekchar) cmdline=CharNext(cmdline);
cmdline=CharNext(cmdline);
Ret = CreateProcess (NULL, cmdline,
NULL, NULL,
TRUE, 0,
NULL, NULL,
&si, &pi
);
if ( Ret )
{
do
{
GetExitCodeProcess(pi.hProcess, &Ret);
Sleep(LOOPTIMEOUT);
} while ( Ret == STILL_ACTIVE );
CloseHandle (pi.hProcess);
CloseHandle (pi.hThread);
return Ret;
}
else
return STATUS_ILLEGAL_INSTRUCTION;
}