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/* $Id: spawn.c,v 1.4 2000/12/14 18:12:14 amura Exp $ */
/*
* Spawn CLI for Win32.
*
* I make this file from MS-DOS spawn.c.
*/
/*
* $Log: spawn.c,v $
* Revision 1.4 2000/12/14 18:12:14 amura
* use alloca() and more memory secure
*
* Revision 1.3 2000/11/16 14:21:31 amura
* merge Ng for win32 0.5
*
* Revision 1.2 2000/10/23 13:19:52 amura
* now impliment call_process() and spawncli()
*
* Revision 1.1.1.1 2000/06/27 01:48:00 amura
* import to CVS
*
*/
/* 90.02.11 Modified for Ng 1.0 MS-DOS ver. by S.Yoshida */
#include "config.h" /* 90.12.20 by S.Yoshida */
#include <windows.h>
#include "def.h"
#include "tools.h"
int
spawncli( int f, int n)
{
STARTUPINFO si;
PROCESS_INFORMATION pi;
BOOL bSuccess;
char *shell;
ewprintf("[Starting new shell]");
if ((shell=getenv("COMSPEC")) == NULL) {
ewprintf("Can't find shell");
return FALSE;
}
memset(&si, 0, sizeof(si));
si.cb = sizeof(si);
si.lpTitle = "MicroEmacs Subprocess";
#ifdef EXTD_DIR
ensurecwd();
#endif
bSuccess = CreateProcess(NULL, shell, NULL, NULL,
FALSE, CREATE_NEW_CONSOLE, NULL,
NULL, &si, &pi);
return (bSuccess) ? TRUE : FALSE;
}
int
tticon( int f, int n )
{
extern HWND g_hwndMain;
#ifdef _WIN32_WCE
#if 0
HWND next;
next = GetWindow(g_hwndMain, GW_HWNDNEXT);
if (next) {
#ifdef CTRLMAP
extern DWORD g_ctrlmap;
if (g_ctrlmap) {
/* send ctrl key `up' event in order to prevent
ctrl key to be kept in a state of `depressed' */
keybd_event(VK_CONTROL, 0, KEYEVENTF_KEYUP, 0);
}
#endif
SetForegroundWindow(next);
}
else {
SetWindowPos(g_hwndMain, HWND_BOTTOM, 0, 0, 0, 0,
SWP_NOACTIVATE | SWP_NOMOVE | SWP_NOSIZE
#ifdef SWP_NOSENDCHANGING
| SWP_NOSENDCHANGING);
#endif
}
#else /* Always activate */
SetWindowPos(g_hwndMain, HWND_BOTTOM, 0, 0, 0, 0,
SWP_NOACTIVATE | SWP_NOMOVE | SWP_NOSIZE
#ifdef SWP_NOSENDCHANGING
| SWP_NOSENDCHANGING);
#endif
#endif /* 1 */
#else /* not _WIN32_WCE */
CloseWindow(g_hwndMain);
#endif /* _WIN32_WCE */
return TRUE;
}
#ifndef NO_SHELL /* 91.01.10 by K.Maeda / Modified by sahf and amura */
char tempfile[NFILEN];
/*
* Call process in subshell.
* Execute COMMAND binding standard input to file INPUT.
* NULL as INPUT means standard input should be bound to
* /dev/null or whatever equivalent in your OS.
* All output during the execution (including standard error output)
* should go into a scratch file, whose name call_process() returns.
* Return value NULL means error in some stage of the execution.
* In that case, scratch file should be deleted.
*/
char *
call_process(command, input)
char *command;
char *input;
{
extern char *mktemp();
int cmdlen;
char *sbuf, *tmp, *temp_path, *shell;
LPTSTR buf;
BOOL bSuccess;
HANDLE hRead, hWrite;
SECURITY_ATTRIBUTES sa;
STARTUPINFO si;
PROCESS_INFORMATION pi;
if ((shell=getenv("COMSPEC")) != NULL) {
int shlen;
cmdlen = strlen(command) + strlen(shell) + 5;
if ((sbuf=alloca(cmdlen)) == NULL)
return NULL;
strcpy(sbuf, shell);
strcat(sbuf, " /c ");
#ifdef KANJI
shlen = strlen(sbuf);
strcat(sbuf, command);
bufetos(sbuf+shlen, cmdlen-shlen);
#else
strcat(sbuf, command);
#endif
}
else {
cmdlen = strlen(command)+1;
if ((sbuf=malloc(cmdlen)) == NULL)
return NULL;
strcpy(sbuf, command);
#ifdef KANJI
bufetos(sbuf, cmdlen);
#endif
}
cmdlen = sjis2unicode((LPBYTE)sbuf, NULL, 0);
if ((buf=alloca(cmdlen)) == NULL)
return NULL;
sjis2unicode(sbuf, buf, cmdlen);
temp_path = getenv("TMP");
if (temp_path == NULL)
temp_path = getenv("tmp");
if (temp_path == NULL)
temp_path = getenv("TEMP");
if (temp_path == NULL)
temp_path = getenv("temp");
tmp = tempfile;
if (temp_path && *temp_path) {
while (*tmp = *temp_path++) {
tmp++;
}
if (tmp[-1] != '/' && tmp[-1] != '\\') {
*tmp++ = '/';
}
}
strcpy(tmp, "ngXXXXXX");
if ((tmp = mktemp(tempfile)) == NULL) {
return NULL;
}
sa.nLength = sizeof(SECURITY_ATTRIBUTES);
sa.lpSecurityDescriptor = NULL;
sa.bInheritHandle = TRUE;
hRead = CreateFile(input ? input : "NUL", GENERIC_READ, 0, &sa,
OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
hWrite = CreateFile(tmp, GENERIC_READ | GENERIC_WRITE, 0, &sa,
CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
/* For OS panic during spawn child process */
if (GetFileType(tmp) == FILE_TYPE_UNKNOWN)
MoveFileEx(tmp, NULL, MOVEFILE_DELAY_UNTIL_REBOOT);
memset(&si, 0, sizeof(si));
si.cb = sizeof(si);
si.hStdInput = hRead;
si.hStdOutput = hWrite;
si.hStdError = hWrite;
si.dwFlags = STARTF_USESTDHANDLES | STARTF_USESHOWWINDOW;
si.wShowWindow = SW_MINIMIZE; /* or SW_HIDE */
#ifdef EXTD_DIR
ensurecwd();
#endif
bSuccess = CreateProcess(NULL, buf, NULL, NULL,
TRUE, 0, NULL, NULL, &si, &pi);
WaitForSingleObject(pi.hProcess, INFINITE);
CloseHandle(pi.hThread); CloseHandle(pi.hProcess);
CloseHandle(hRead); CloseHandle(hWrite);
if (!bSuccess) {
unlink(tmp);
return NULL;
}
return tmp;
}
#endif /* NO_SHELL */
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