pcap_fopen_offline(), so that we initialize various function pointers
(not just the oneshot callback, but also functions such as the "can set
rfmon mode" function).
message, supply the error message corresponding to the activate
routine's return status, for the benefit of programs that don't handle
different error returns differently.
If PCAP_WARNING_PROMISC_NOTSUP, PCAP_ERROR_NO_SUCH_DEVICE, or
PCAP_ERROR_PERM_DENIED is returned, pcap_geterr() or
pcap_perror() may be called with p as an argument to fetch or
display an message giving additional details about the problem
that might be useful for debugging the problem if it's
unexpected.
but we weren't always setting the error string in question. Do so.
In pcap_open_live(), if the open fails with PCAP_ERROR, include the
device name in the error string, and if it fails with
PCAP_ERROR_NO_SUCH_DEVICE or PCAP_ERROR_PERM_DENIED, include the device
name and both error messages in the error string.
packets were seen, but do put the "."s on a separate line - which should
all come out in a burst, so don't fflush() after each one, let the
newline at the end do that.
Report POLLNVAL for poll().
When not using select() or poll(), loop forever doing pcap_dispatch(),
rather than just using pcap_loop(), so you see what happens for each
delivered batch of packets.
Allocate a buffer into which to copy a packet, and have the
callback for pcap_next() and pcap_next_ex() copy to that buffer
and return a pointer to that buffer; we can't return the packet
data pointer passed to the callback, as, once the callback
returns, that buffer can be overwritten, even before you read
the next packet.
Don't tweak filter programs passed into the kernel to return
65535 on success - we don't have to, as we're not reading
packets with recvfrom(), and we don't want to, as, if we return
the actual snapshot length, the kernel will copy less data to
the ring buffer.
Truncate the packet snapshot length to the specified length, as
we might not have a filter to do that.
- Fixed bug where create_ring would fail for particular snaplen and
buffer size combinations
- Changed ring allocation to retry with 5% less buffer size instead of
50%
Add ADDLARCHIVEOBJS, so that we can put some stuff from -ldag into the
archive library (so it's self-contained, and the configuration processes
for programs not configured with pcap-config don't have to know about
the DAG library) but not into the shared library (as we can link libpcap
with the DAG shared library, so linking with -lpcap will cause -ldag to
be linked in at run time if necessary).
region and the size of the region; use that pointer rather than the bp
or buffer member (that means we don't have to worry about
pcap_cleanup_live_common() attempting to free that buffer). Use the
saved size when unmapping the memory-mapped region.
Use that for Linux USB memory-mapped access as well - and unmap the
memory-mapped region when we close the pcap_t, because we *do* have to
unmap it.
Author: Peter Volkov <pva@gentoo.org>
Date: Wed Jul 8 16:06:18 2009 +0400
Add --without-libnl configure switch
Allow build libpcap with libnl disabled even in case libnl is installed
at system.
elsewhere in the macro.
For the Alpha C compiler, don't set -std1 unless it's necessary for ANSI
mode - we don't want to limit the compiler only to C89 features and,
more importantly, C89 headers (<inttypes.h> doesn't work, on at least
some versions of Digital UNIX and some C compiler versions, with -std1).
usbdevfs_ctrltransfer"; check for that and handle it.
Don't declare variables in the middle of a block; some versions of GCC
appear to warn about that.
Guy Harris