help installing libpcap on cygwin - cygwin

Question

i was trying to install libpcap under cygwin on windows 7 but i had this error:
$ ./configure
.
.
.
.
.
configure: error: see the INSTALL for more info
how can i solve this?
i am using libpcap-1.0.0 which is the latest version.

Answer 1

http://mathieu.carbou.free.fr/wiki/index.php?title=How_to_install_Winpcap_/_Libpcap_under_Cygwin
libpcap develop pack can be found from
http://www.winpcap.org/devel.htm
steps in detail as follows:
Setup Winpcap
Download and unzip the pack. We will use for this example WpdPack_4_0_1.zip.
Copy libraries like this:
WpdPack\Lib\libpacket.a to cygwin\lib\
WpdPack\Lib\libwpcap.a to cygwin\lib\
Create a folder cygwin\usr\include\pcap\
Copy all headers from WpdPack\Include to cygwin\usr\include\winpcap\
Be sure you have installed Winpcap libraries and that they are in your path by typing:
which packet.dll
which wpcap.dll
For me they are in /cygdrive/c/WINDOWS/system32/
Building example using Cygwin
Open a cygwin prompt to WpdPack\Examples-pcap\basic_dump\ and execute:
basic_dump:
CFLAGS="-g -Wall -mno-cygwin -I /usr/include/pcap"
LIBS="-lwpcap"
PROG="basic_dump"
gcc $CFLAGS -c $PROG.c
gcc $CFLAGS -o $PROG.exe $PROG.o $LIBS
./$PROG.exe
basic_dump_ex:
CFLAGS="-g -Wall -mno-cygwin -I /usr/include/pcap"
LIBS="-lwpcap"
PROG="basic_dump_ex"
gcc $CFLAGS -c $PROG.c
gcc $CFLAGS -o $PROG.exe $PROG.o $LIBS
./$PROG.exe
iflist:
CFLAGS="-g -Wall -mno-cygwin -I /usr/include/pcap"
LIBS="-lwpcap"
PROG="iflist"
gcc $CFLAGS -c $PROG.c
gcc $CFLAGS -o $PROG.exe $PROG.o $LIBS
./$PROG.exe
pcap_filter (and others):
I think you can catch the pattern ;) Only replace PROG=... by the program name and it should compile.
UDPdump:
CFLAGS="-g -Wall -mno-cygwin -I /usr/include/pcap"
LIBS="-lwpcap -lwsock32"
PROG="UDPdump"
gcc $CFLAGS -c $PROG.c
gcc $CFLAGS -o $PROG.exe $PROG.o $LIBS
./$PROG.exe
You can test by doing a Time Synchronization with pool.ntp.org for
example.

Answer 2

The libpcap source includes part, but not all, of the Windows support. The mechanisms used to capture network traffic are very OS-dependent (which is why libpcap exists - to hide that detail from applications).
On UN*Xes, the mechanism is part of the OS, so libpcap doesn't have to provide that mechanism.
On Windows, there's no such mechanism in the OS, so WinPcap combines a kernel-mode driver, a low-level library that talks to the driver, and a module for libpcap that uses the low-level library.
The libpcap source doesn't include the driver or the low-level library, so it's not sufficient to build a version of libpcap for Windows.
As the other answers indicate, you need WinPcap.

Answer 3

I know this is a late reply, but I just went through the same install issues on Windows 7.
On Windows, you should use Winpcap: http://www.winpcap.org/