On Oct 27, 2008, at 6:28 PM, Michael Richardson wrote:
I tried building the library before signing it:
marajade-[Misc/tcpdump/4.0/libpcap-1.0.0] mcr 1039 %make
gcc -O2 -fPIC -I. -DHAVE_CONFIG_H -D_U_="__attribute__((unused))" -
c ./pcap-linux.c
./pcap-linux.c: In function 'pcap_read_packet':
./pcap-linux.c:653: error: invalid application of 'sizeof' to
incomplete type 'struct tpacket_auxdata'
Sigh. More of the Perils Of Writing Code For the Latest Shiniest
Version Of {fill in your OS} And Not Carefully Conditionalizing The
Use Of Features That Might Not Be In Every Relevant Release Of That
OS; it was assuming your Linux had the tpacket_auxdata structure, but
apparently it doesn't.
(What kernel version does your machine have? My test (virtual)
machines might have newer kernels; at least one of them has that
structure but doesn't have a tp_vlan_tci member in it, so I had to fix
*that*, but I guess none of them lack the structure entirely.)
I've checked in a change that should fix that (by reverting to the old
code if the kernel lacks that structure or lacks a tp_vlan_tci member
in that structure); see whether it compiles now. (If not, I won't be
able to address it immediately, but should be able to get to it later
tonight.)
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