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From: Olivia Nelson <the DOT warl0ck DOT 1989 AT gmail DOT com>
Date: Sun, 9 Feb 2020 22:51:47 +0800
Message-ID: <CAJZVxRk0EoRBtGWwUsQY7SQkMTzndZPd0kuOhvGBc8+W5ahbnQ@mail.gmail.com>
Subject: Re: DllMain not called in CreateRemoteThread
To: cygwin AT cygwin DOT com
Content-Type: text/plain; charset="UTF-8"
X-IsSubscribed: yes

I need to use unix socket() interface, mingw does not seem to provide
the following headers:

#include <sys/types.h>
#include <sys/socket.h>
#include <sys/mman.h>
#include <sys/wait.h>


On Sat, Feb 8, 2020 at 1:40 PM Marco Atzeri <marco DOT atzeri AT gmail DOT com> wrote:
>
> please bottom post on this mailing list
>
> Am 08.02.2020 um 01:12 schrieb Olivia Nelson:
> > Sorry, I made a mistake. I've updated the title ..
> >
> > To summarize:
> >
> > 1. I can load the DLL compiled with cygwin with LoadLibraryA,
> >       but not remotely with CreateRemoteThread.
> > 2. The same DLL compiled with msvc works with both LoadLibraryA and
> > CreateRemoteThread
> >
> > Answer to Joost:
> > constructor and destructor are called with LoadLibraryA, but not with
> > CreateRemoteThread either
> >
> > Answer to Marco
> > 1. I can't use mingw, it does not provide sys/XXX.h, e,g socket
> > 2. I copied cygwin1.dll to system32, and it works outside cygwin environment
> >
> > Here's a implementation of the DLL injector in C#:
> > https://codingvision.net/miscellaneous/c-inject-a-dll-into-a-process-w-createremotethread
> >
>
> Which of the sys/XXX.h are you looking for ?
>
> $ cygcheck -l mingw64-x86_64-headers | grep "/sys/"
> /usr/x86_64-w64-mingw32/sys-root/mingw/include/sec_api/sys/timeb_s.h
> /usr/x86_64-w64-mingw32/sys-root/mingw/include/sys/cdefs.h
> /usr/x86_64-w64-mingw32/sys-root/mingw/include/sys/fcntl.h
> /usr/x86_64-w64-mingw32/sys-root/mingw/include/sys/file.h
> /usr/x86_64-w64-mingw32/sys-root/mingw/include/sys/locking.h
> /usr/x86_64-w64-mingw32/sys-root/mingw/include/sys/param.h
> /usr/x86_64-w64-mingw32/sys-root/mingw/include/sys/stat.h
> /usr/x86_64-w64-mingw32/sys-root/mingw/include/sys/time.h
> /usr/x86_64-w64-mingw32/sys-root/mingw/include/sys/timeb.h
> /usr/x86_64-w64-mingw32/sys-root/mingw/include/sys/types.h
> /usr/x86_64-w64-mingw32/sys-root/mingw/include/sys/unistd.h
> /usr/x86_64-w64-mingw32/sys-root/mingw/include/sys/utime.h
>
> for what I know the Windows program use winsock2.h and winsock.h
> for their own socket interface
>
> $ cygcheck -l mingw64-x86_64-headers | grep "sock"
> /usr/x86_64-w64-mingw32/sys-root/mingw/include/hvsocket.h
> /usr/x86_64-w64-mingw32/sys-root/mingw/include/mswsock.h
> /usr/x86_64-w64-mingw32/sys-root/mingw/include/psdk_inc/_socket_types.h
> /usr/x86_64-w64-mingw32/sys-root/mingw/include/winsock.h
> /usr/x86_64-w64-mingw32/sys-root/mingw/include/winsock2.h
>
>
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