[Winpcap-users] pcap_close crash when used in a DLL

[MARTIN, Jean-loic (FR - SX)]

Hello gents,

I'm facing a problem with pcap_close.

I have a DLL where I use pcap_open and pcap_close.
And an executable program which uses this DLL.
The problem appears only when I uses the \device\NPF_GenericDialupAdapter .
With a real adapter there is no problem.

Also , when I use the same source code in an application (without a DLL) there is no problem.
So the problem comes from using pcap_close in a DLL with the \device\NPF_GenericDialupAdapter

I have attached the source code and project for Code::Blocks for both DLL and application.

Does someone facing the same problem ?

To explain what is done in the DLL and in the application :

1.       The application does only a call to EdrEth_OpenDevice(0) , wait 1s, and call to EdrEth_CloseDevice();

The crash appears after the call to EdrEth_CloseDevice. Crash appears in debug mode and release mode.

Everything is ok when I debug the DLL (adhandle variable is correctly set).

[cid:image001.png at 01D04C3E.71CBA840]



2.       The DLL does the pcap_open in EdrEth_OpenDevice function and the pcap_close in the EdrEth_CloseDevice function.


Last information, I use a PC with Windows XP SP3.


Best regards / Cordialement,

Jean-Loïc MARTIN
Software engineer/ Ingénieur développement logiciel

Meggitt Sensing Systems "MSS"
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Archamps Technopole
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FRANCE

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