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Implement OPENSSL_showfatal and make it Win32 GUI and service aware

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[meaning that it will detect in which context application is running
and either write message to stderr, post a dialog or log an event].
This commit is contained in:
Andy Polyakov 2005-04-07 18:39:45 +00:00
parent e1d51de41f
commit 9f2027e56d
1 changed files with 136 additions and 1 deletions
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137
crypto/cryptlib.c
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@ -602,9 +602,144 @@ BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason,
}
#endif
#if defined(_WIN32)
#include <tchar.h>
#if defined(_WIN32_WINNT) && _WIN32_WINNT>=0x0333
static int IsService(void)
{ HWINSTA h;
DWORD len;
WCHAR *name;
(void)GetDesktopWindow(); /* return value is ignored */
h = GetProcessWindowStation();
if (h==NULL) return -1;
if (GetUserObjectInformationW (h,UOI_NAME,NULL,0,&len) ||
GetLastError() != ERROR_INSUFFICIENT_BUFFER)
return -1;
if (len>512) return -1; /* paranoia */
len++,len&=~1; /* paranoia */
#ifdef _MSC_VER
name=(WCHAR *)_alloca(len+sizeof(WCHAR));
#else
name=(WCHAR *)alloca(len+sizeof(WCHAR));
#endif
if (!GetUserObjectInformationW (h,UOI_NAME,name,len,&len))
return -1;
len++,len&=~1; /* paranoia */
name[len/sizeof(WCHAR)]=L'\0'; /* paranoia */
#if 1
/* This doesn't cover "interactive" services [working with real
* WinSta0's] nor programs started non-interactively by Task
* Scheduler [those are working with SAWinSta]. */
if (wcsstr(name,L"Service-0x")) return 1;
#else
/* This covers all non-interactive programs such as services. */
if (!wcsstr(name,L"WinSta0")) return 1;
#endif
else return 0;
}
#endif
void OPENSSL_showfatal (char *fmta,...)
{ va_list ap;
TCHAR buf[256],*fmt;
HANDLE h;
if ((h=GetStdHandle(STD_ERROR_HANDLE)) != NULL &&
GetFileType(h)!=FILE_TYPE_UNKNOWN)
{ /* must be console application */
va_start (ap,fmta);
vfprintf (stderr,fmta,ap);
va_end (ap);
return;
}
if (sizeof(TCHAR)==sizeof(char))
fmt=fmta;
else do
{ int keepgoing;
size_t len_0=strlen(fmta)+1,i;
WCHAR *fmtw;
#ifdef _MSC_VER
fmtw = (WCHAR *)_alloca (len_0*sizeof(WCHAR));
#else
fmtw = (WCHAR *)alloca (len_0*sizeof(WCHAR));
#endif
if (fmtw == NULL) { fmt=(TCHAR *)L"no stack?"; break; }
#ifndef OPENSSL_NO_MULTIBYTE
if (!MultiByteToWideChar(CP_ACP,0,fmta,len_0,fmtw,len_0))
#endif
for (i=0;i<len_0;i++) fmtw[i]=(WCHAR)fmta[i];
for (i=0;i<len_0;i++)
{ if (fmtw[i]==L'%') do
{ keepgoing=0;
switch (fmtw[i+1])
{ case L'0': case L'1': case L'2': case L'3': case L'4':
case L'5': case L'6': case L'7': case L'8': case L'9':
case L'.': case L'*':
case L'-': i++; keepgoing=1; break;
case L's': fmtw[i+1]=L'S'; break;
case L'S': fmtw[i+1]=L's'; break;
case L'c': fmtw[i+1]=L'C'; break;
case L'C': fmtw[i+1]=L'c'; break;
}
} while (keepgoing);
}
fmt = (TCHAR *)fmtw;
} while (0);
va_start (ap,fmta);
_vsntprintf (buf,sizeof(buf)/sizeof(TCHAR)-1,fmt,ap);
buf [sizeof(buf)/sizeof(TCHAR)-1] = _T('\0');
va_end (ap);
#if defined(_WIN32_WINNT) && _WIN32_WINNT>=0x0333
/* this -------------v--- guards NT-specific calls */
if (GetVersion() < 0x80000000 && IsService())
{ HANDLE h = RegisterEventSource(0,_T("OPENSSL"));
const TCHAR *pmsg=buf;
ReportEvent(h,EVENTLOG_ERROR_TYPE,0,0,0,1,0,&pmsg,0);
DeregisterEventSource(h);
}
else
#endif
{ MSGBOXPARAMS m;
m.cbSize = sizeof(m);
m.hwndOwner = NULL;
m.lpszCaption = _T("OpenSSL: FATAL");
m.dwStyle = MB_OK;
m.hInstance = NULL;
m.lpszIcon = IDI_ERROR;
m.dwContextHelpId = 0;
m.lpfnMsgBoxCallback = NULL;
m.dwLanguageId = MAKELANGID(LANG_ENGLISH,SUBLANG_ENGLISH_US);
m.lpszText = buf;
MessageBoxIndirect (&m);
}
}
#else
void OPENSSL_showfatal (char *fmta,...)
{ va_list ap;
va_start (ap,fmta);
vfprintf (stderr,fmta,ap);
va_end (ap);
}
#endif
void OpenSSLDie(const char *file,int line,const char *assertion)
{
fprintf(stderr,
OPENSSL_showfatal(
"%s(%d): OpenSSL internal error, assertion failed: %s\n",
file,line,assertion);
abort();