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#include "gnupgplugin.h"
BOOL isWindowsNT(void)
{
OSVERSIONINFO ovi;
ZeroMemory(&ovi,sizeof(ovi));
ovi.dwOSVersionInfoSize=sizeof(OSVERSIONINFO);
GetVersionEx(&ovi);
return (ovi.dwPlatformId==VER_PLATFORM_WIN32_NT)?TRUE:FALSE;
}
void storeOutput(HANDLE ahandle, char **aoutput)
{
BOOL success;
char readbuffer[10];
unsigned long transfered, available;
do {
PeekNamedPipe(ahandle,NULL,0,NULL,&available,NULL);
if (!available)
continue;
success=ReadFile(ahandle,readbuffer,sizeof(readbuffer),&transfered,NULL);
if (success && transfered)
appendText(aoutput,readbuffer,transfered);
} while (available>0);
}
pxResult pxExecute(char *acommandline, char *ainput, char **aoutput, LPDWORD aexitcode)
{
BOOL success;
STARTUPINFO startupinfo;
SECURITY_ATTRIBUTES securityattributes;
SECURITY_DESCRIPTOR securitydescriptor;
PROCESS_INFORMATION processinformation;
HANDLE newstdin, newstdout, readstdout, writestdin;
char *inputpos;
unsigned long transfered;
int size;
LogMessage("--- GnuPG.pxExecute: commandline:\n",acommandline,"\n");
ZeroMemory(&securityattributes,sizeof(securityattributes));
securityattributes.nLength=sizeof(SECURITY_ATTRIBUTES);
securityattributes.bInheritHandle=TRUE;
if (isWindowsNT())
{
InitializeSecurityDescriptor(&securitydescriptor,SECURITY_DESCRIPTOR_REVISION);
SetSecurityDescriptorDacl(&securitydescriptor,TRUE,NULL,FALSE);
securityattributes.lpSecurityDescriptor=&securitydescriptor;
}
else securityattributes.lpSecurityDescriptor=NULL;
success=CreatePipe(&newstdin,&writestdin,&securityattributes,0);
if (!success)
{
LogMessage("--- GnuPG.pxExecute: ","stdin create pipe failed","\n");
return pxCreatePipeFailed;
}
success=CreatePipe(&readstdout,&newstdout,&securityattributes,0);
if (!success)
{
LogMessage("--- GnuPG.pxExecute: ","stdout create pipe failed","\n");
CloseHandle(newstdin);
CloseHandle(writestdin);
return pxCreatePipeFailed;
}
GetStartupInfo(&startupinfo);
startupinfo.dwFlags=STARTF_USESTDHANDLES|STARTF_USESHOWWINDOW;
startupinfo.wShowWindow=SW_HIDE;
startupinfo.hStdOutput=newstdout;
startupinfo.hStdError=newstdout;
startupinfo.hStdInput=newstdin;
success=CreateProcess
(
NULL,
(LPTSTR)acommandline,
NULL,
NULL,
TRUE,
CREATE_NEW_CONSOLE,
NULL,
NULL,
&startupinfo,
&processinformation
);
if (!success)
{
LogMessage("--- GnuPG.pxExecute: ", "create process failed", "\n");
CloseHandle(newstdin);
CloseHandle(writestdin);
CloseHandle(newstdout);
CloseHandle(readstdout);
return pxCreateProcessFailed;
}
inputpos=ainput;
while (TRUE)
{
success=GetExitCodeProcess(processinformation.hProcess,aexitcode);
if (success && *aexitcode!=STILL_ACTIVE)
break;
storeOutput(readstdout,aoutput);
if (*inputpos!='\0') size=1;
else size=0;
success=WriteFile(writestdin,inputpos,size,&transfered,NULL);
inputpos+=transfered;
}
storeOutput(readstdout,aoutput);
WaitForSingleObject(processinformation.hProcess,INFINITE);
LogMessage("--- GnuPG.pxExecute: output:\n",*aoutput,"");
CloseHandle(processinformation.hThread);
CloseHandle(processinformation.hProcess);
CloseHandle(newstdin);
CloseHandle(newstdout);
CloseHandle(readstdout);
CloseHandle(writestdin);
return pxSuccess;
}
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