Hi,
Wrong forum but Im a newbie in Linux and this is a Linux compiler problem
(works on Watcom C++ 11/ MS VC++ 6.0). If someone knows a better place let
me know.
The code looks something like this:
///////////////////////////////////////
//
const char *pek;
for( loopIP = IPList.GetFirstNode(); loopIP; loopIP = loopIP->GetNext())
{
if( bMajor ) pek = strrchr( loopIP->GetHolder().strDNS, '.' );
else pek = strchr( loopIP->GetHolder().strDNS, '.' );
if( !pek ) pek = " <N/A> ";
fprintf( stderr, "1) pek = \"%s\"\n", pek ); // ** Still ok here **
for( loopDNS = tList.GetFirstNode(); loopDNS; loopDNS =
loopDNS->GetNext())
{
if( strcmp( pek, loopDNS->GetHolder().strDNS ) == 0 ) break;
else fprintf( stderr, "2) pek = \"%s\"\n", pek ); // ** NOT
here **
}
fprintf( stderr, "3) pek = \"%s\"\n", pek ); // If point 2 was executed then
pek is fucked up here
if( loopDNS ) loopDNS->GetPointer()->iCount +=
loopIP->GetHolder().iCount;
else
{
sDNS sTemp;
if( strlen( pek ) < sizeof( sTemp.strDNS ) - 1)
{
fprintf( stderr, "4) pek = \"%s\"\n", pek ); // If point 2 was executed then
pek is still bad
strcpy( sTemp.strDNS, pek );
sTemp.iCount = loopIP->GetHolder().iCount;
tList.Append( sTemp );
fprintf( stderr, "5) pek = \"%s\"\n", pek ); // Pek is the same here as it
was at point 1, but the bad data is allready copied to sTemp.strDNS
}
else fprintf( stderr, "** ERROR ** Overflow detected." );
}
}
//
///////////////////////////////////////
It seems that "pek" is moved by strcmp(...) to point at bogus data if the
strings are not the same. But after a few commands the compiler restores the
value. Maybe strcmp(...) does not restore all registers at exit. And after a
while the compiler desides to restore them instead.
Or Im I doing something wrong?
// Jarmo
