void nt_execve_wrapped(char *prog, char**args, char**envir ) {
STARTUPINFO si;
PROCESS_INFORMATION pi;
BOOL bRet;
DWORD type=0;
char *argv0;
char **savedargs = args;
unsigned int cmdsize,cmdlen;
char *cmdstr ,*cmdend;
// int rc=0; // unused variable
int retries=0;
int is_winnt;
int hasdot=0;
char myself[512];
memset(&si,0,sizeof(si));
/*
* This memory is not freed because we are exec()ed and will
* not be alive long.
*/
/* This version avoids realloc in concat_args_and_quote, so it should be a little bit safer */
/* cmdsize = 65500;
* cmdstr= heap_alloc(cmdsize);
*/
cmdsize = MAX_PATH << 2;
cmdstr= heap_alloc(MAX_PATH<<2);
is_winnt = (gdwPlatform != VER_PLATFORM_WIN32_WINDOWS);
/* replace /bin/sh with myself to be executed */
if( strcmp(prog, "/bin/sh") == 0 ) {
if (GetModuleFileName(GetModuleHandle(NULL),myself,512) <= 512) {
prog = myself;
}
}
cmdlen = copy_quote_and_fix_slashes(prog,cmdstr,&hasdot);
cmdend = cmdstr + cmdlen;
*cmdend = 0;
if (!is_winnt) {
argv0 = NULL;
goto win95_directly_here;
}
else {
argv0 = heap_alloc(MAX_PATH);
wsprintf(argv0,"%s",prog);
}
retry:
bRet=GetBinaryType(argv0,&type);
if (is_winnt && !bRet ) {
/* Don't append .EXE if it could be a script file */
if (GetLastError() == ERROR_BAD_EXE_FORMAT) {
try_shell_ex(args,1);
errno = ENOEXEC;
return;
}
else if (retries) {
/* If argv[0] got parsed as \\foo (stupid paths with '/' as one
* of the components will do it,) and if argv[1] is not the same,
* then this is not a real UNC name.
* In other cases, argv[0] and argv[1] here must be the same
* anyway. -amol 5/1/6/98
*/
if (
( (*prog == '\\') ||(*prog == '/') ) &&
( (prog[1] == '\\') ||(prog[1] == '/') ) &&
((*args[0] == *prog) && (args[0][1] == prog[1])) &&
(!args[1])
)
try_shell_ex(args,1);
errno = ENOENT;
}
if (retries > 2) {
return;
}
if (retries == 0) {
wsprintf(argv0,"%s.EXE",prog);
retries++;
}
else if (prog[0] == '\\' && retries == 1) {
char ptr[80];
if(GetEnvironmentVariable("ZSHROOT",ptr,80)) {
wsprintf(argv0,"%s%s",ptr,prog);
}
retries++;
}
else if (prog[0] == '\\' && retries == 2) {
char ptr[80];
if(GetEnvironmentVariable("ZSHROOT",ptr,80)) {
wsprintf(argv0,"%s%s.EXE",ptr,prog);
}
retries++;
}
else
retries += 2;
goto retry;
}
else if (bRet && retries > 0) { //re-fix argv0
cmdlen = copy_quote_and_fix_slashes(argv0,cmdstr,&hasdot);
cmdend = cmdstr + cmdlen;
*cmdend = 0;
}
win95_directly_here:
si.cb = sizeof(STARTUPINFO);
si.dwFlags = STARTF_USESTDHANDLES;
si.hStdInput = (HANDLE)_get_osfhandle(0);
si.hStdOutput = (HANDLE)_get_osfhandle(1);
si.hStdError = (HANDLE)_get_osfhandle(2);
*args++; // ignore argv[0];
concat_args_and_quote(args,&cmdstr,&cmdlen,&cmdend,&cmdsize);
*cmdend = 0;
if (gdwPlatform != VER_PLATFORM_WIN32_WINDOWS) {
if (!SetConsoleCtrlHandler(NULL,FALSE)) {
errno = ENOENT;
}
}
fix_path_for_child();
if (cmdlen < 1000)
dprintf("argv0 %s cmdstr %s\n",argv0,cmdstr);
if (!CreateProcess(argv0,
cmdstr,
NULL,
NULL,
TRUE, // need this for redirecting std handles
0,
NULL,//envcrap,
NULL,
&si,
&pi) ) {
if (GetLastError() == ERROR_BAD_EXE_FORMAT) {
try_shell_ex(savedargs,1);
errno = ENOEXEC;
}
else if (GetLastError() == ERROR_INVALID_PARAMETER) {
/* exceeded command line */
errno = ENAMETOOLONG;
}
else
errno = ENOENT;
}
else {
errno= 0;
//
{
DWORD exitcode=0;
int gui_app = 0;
if (gdwPlatform != VER_PLATFORM_WIN32_WINDOWS) {
SetConsoleCtrlHandler(NULL,TRUE);
}
if (isset(WINNTWAITFORGUIAPPS))
gui_app = 0;
else if (is_winnt)
gui_app = is_gui(argv0);
else
gui_app = is_9x_gui(prog);
if (!gui_app) {
WaitForSingleObject(pi.hProcess,INFINITE);
}
(void)GetExitCodeProcess(pi.hProcess,&exitcode);
CloseHandle(pi.hProcess);
CloseHandle(pi.hThread);
ExitProcess(exitcode);
}
}
}
void nt_execve(char *prog, char**args, char**envir ) {
STARTUPINFO si;
PROCESS_INFORMATION pi;
HANDLE htemp;
BOOL bRet;
DWORD type=0;
DWORD dwCreationflags;
unsigned int priority;
char *argv0;
char *cmdstr, *cmdend ;
char *originalPtr;
unsigned int cmdsize,cmdlen;
char *p2;
char **savedargs;
int retries=0;
int hasdot =0;
int is_winnt ;
memset(&si,0,sizeof(si));
savedargs = args;
/*
* This memory is not freed because we are exec()ed and will
* not be alive long.
*/
originalPtr = cmdstr= heap_alloc(MAX_PATH<<2);
is_winnt = (gdwPlatform != VER_PLATFORM_WIN32_WINDOWS);
cmdsize = MAX_PATH<<2;
p2 = cmdstr;
cmdlen = 0;
cmdlen += copy_quote_and_fix_slashes(prog,cmdstr,&hasdot);
p2 += cmdlen;
/* If the command was not quoted ,
skip initial character we left for quote */
if (*cmdstr != '"') {
*cmdstr = 'A';
cmdstr++;
cmdsize--;
}
*p2 = 0;
cmdend = p2;
if (!is_winnt){
argv0 = NULL;
goto win95_directly_here;
}
else {
argv0 = heap_alloc(MAX_PATH); /* not freed */
wsprintf(argv0,"%s",prog);
}
retry:
bRet=GetBinaryType(argv0,&type);
dprintf("binary type for %s is %d\n",argv0,bRet);
//
// For NT, append .EXE and retry
//
if (is_winnt && !bRet ) {
/* Don't append .EXE if it could be a script file */
if (GetLastError() == ERROR_BAD_EXE_FORMAT){
errno = ENOEXEC;
if (!__nt_only_start_exes)
try_shell_ex(args,1,FALSE); //can't throw on error
return;
}
else if ( retries ){
if (
( (argv0[0] == '\\') ||(argv0[0] == '/') ) &&
( (argv0[1] == '\\') ||(argv0[1] == '/') ) &&
(!args[1])
)
if (!__nt_only_start_exes)
try_shell_ex(args,1,FALSE);
errno = ENOENT;
}
if (retries > 1){
return;
}
// Try uppercase once and then lower case
//
if (!retries)
wsprintf(argv0,"%s.exe",prog);
else
wsprintf(argv0,"%s.EXE",prog); /* fix for clearcase */
retries++;
goto retry;
}
win95_directly_here:
si.cb = sizeof(STARTUPINFO);
si.dwFlags = STARTF_USESTDHANDLES;
htemp= (HANDLE)_get_osfhandle(0);
DuplicateHandle(GetCurrentProcess(),htemp,GetCurrentProcess(),
&si.hStdInput,0,TRUE,DUPLICATE_SAME_ACCESS);
htemp= (HANDLE)_get_osfhandle(1);
DuplicateHandle(GetCurrentProcess(),htemp,GetCurrentProcess(),
&si.hStdOutput,0,TRUE,DUPLICATE_SAME_ACCESS);
htemp= (HANDLE)_get_osfhandle(2);
DuplicateHandle(GetCurrentProcess(),htemp,GetCurrentProcess(),
&si.hStdError,0,TRUE,DUPLICATE_SAME_ACCESS);
*args++; // the first arg is the command
dprintf("nt_execve calling c_a_a_q");
if(!concat_args_and_quote(args,&originalPtr,&cmdstr,&cmdlen,&cmdend,
&cmdsize))
{
dprintf("concat_args_and_quote failed\n");
heap_free(originalPtr);
errno = ENOMEM;
goto fail_return;
}
*cmdend = 0;
dwCreationflags = GetPriorityClass(GetCurrentProcess());
if (__nt_child_nohupped) {
dwCreationflags |= DETACHED_PROCESS;
}
priority = GetThreadPriority(GetCurrentThread());
(void)fix_path_for_child();
if (is_winnt)
dwCreationflags |= CREATE_SUSPENDED;
re_cp:
dprintf("argv0 %s cmdstr %s\n",argv0,cmdstr);
bRet = CreateProcessA(argv0, cmdstr,
NULL, NULL,
TRUE, // need this for redirecting std handles
dwCreationflags,
NULL, NULL,
&si,
&pi);
if (!bRet){
if (GetLastError() == ERROR_BAD_EXE_FORMAT) {
if (!__nt_only_start_exes)
try_shell_ex(savedargs,1,FALSE);
errno = ENOEXEC;
}
else if (GetLastError() == ERROR_INVALID_PARAMETER) {
/* can't get invalid parameter, so this must be
* the case when we exceed the command length limit.
*/
errno = ENAMETOOLONG;
}
else {
errno = ENOENT;
}
if (!is_winnt && !hasdot) { //append '.' to the end if needed
lstrcat(cmdstr,".");
hasdot=1;
goto re_cp;
}
}
else{
int gui_app ;
char guivar[50];
if (GetEnvironmentVariable("TCSH_NOASYNCGUI",guivar,50))
gui_app=0;
else {
if (is_winnt || hasdot)
gui_app= is_gui(argv0);
else
gui_app = is_9x_gui(prog);
}
if (is_winnt && !SetThreadPriority(pi.hThread,priority) ) {
priority =GetLastError();
}
if (is_winnt)
ResumeThread(pi.hThread);
errno= 0;
if (__nt_really_exec||__nt_child_nohupped || gui_app){
ExitProcess(0);
}
else {
DWORD exitcode=0;
WaitForSingleObject(pi.hProcess,INFINITE);
(void)GetExitCodeProcess(pi.hProcess,&exitcode);
CloseHandle(pi.hProcess);
CloseHandle(pi.hThread);
/*
* If output was redirected to /dev/clipboard,
* we need to close the pipe handles
*/
if (is_dev_clipboard_active) {
CloseHandle((HANDLE)_get_osfhandle(0));
CloseHandle((HANDLE)_get_osfhandle(1));
CloseHandle((HANDLE)_get_osfhandle(2));
CloseHandle(si.hStdInput);
CloseHandle(si.hStdOutput);
CloseHandle(si.hStdError);
WaitForSingleObject(ghdevclipthread,60*1000);
}
ExitProcess(exitcode);
}
}
fail_return:
CloseHandle(si.hStdInput);
CloseHandle(si.hStdOutput);
CloseHandle(si.hStdError);
return;
}
