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Add WinPcap specific functions like pcap_open() to libpcap on Windows for binary compatibility
From: Yang Luo <hsluoyb () gmail com>
Date: Tue, 28 Jun 2016 14:22:24 +0800
Hi list, When compiling WinDump (https://github.com/hsluoyz/WinDump) against the latest libpcap's SDK, I encountered the following errors: 1> Generating Code... 1>wpcap.lib(wpcap.dll) : error LNK2005: pcap_list_datalinks already defined in datalinks.obj 1>wpcap.lib(wpcap.dll) : error LNK2005: pcap_datalink_val_to_description already defined in dlnames.obj 1>wpcap.lib(wpcap.dll) : error LNK2005: bpf_dump already defined in bpf_dump.obj 1> Creating library x64\Debug\WinDump.lib and object x64\Debug\WinDump.exp 1>addrtoname.obj : error LNK2019: unresolved external symbol endservent referenced in function init_servarray 1>addrtoname.obj : error LNK2019: unresolved external symbol getservent referenced in function init_servarray 1>addrtoname.obj : error LNK2001: unresolved external symbol __imp_eproto_db 1>Tcpdump.obj : error LNK2019: unresolved external symbol wsockinit referenced in function main 1>Tcpdump.obj : error LNK2019: unresolved external symbol pcap_open referenced in function main 1>x64\Debug\WinDump.exe : fatal error LNK1120: 5 unresolved externals This is because libpcap doesn't have some functions that are available in WinPcap, like pcap_open, pcap_findalldevs_ex, etc. And what's worse, these functions are quite often used, nearly every application uses them. I think this also might explains my previous post: "Why the wpcap.dll built from the latest libpcap doesn't work for any existing applications?". The missing procedures are just these ones. So my thought is we need to add back those functions to libpcap on Windows, the related source code files are remote-ext.h, pcap-new.c, etc, which don't exist in libpcap. So are we OK with this? Cheers, Yang _______________________________________________ tcpdump-workers mailing list tcpdump-workers () lists tcpdump org https://lists.sandelman.ca/mailman/listinfo/tcpdump-workers
Current thread:
- Add WinPcap specific functions like pcap_open() to libpcap on Windows for binary compatibility Yang Luo (Jun 27)