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AC_CHECK_MEMBER() and AC_CHECK_MEMBERS() use a standard name for the
{structurename} being the name of the structure type, complete with
"struct" if a typedef wasn't used, and with all letters mapped to upper
case, and with {membername} being the name of the structure member, with
all letters mapped to upper case.
check_struct_has_member() lets you choose the name; choose the same name
that the autoconf macros use, and fix the code to check for them.
Change-Id: Ifb3cf65e7e94907ad0a2f8aacca0c21a531f0c5b
Reviewed-on: https://code.wireshark.org/review/18382
Petri-Dish: Guy Harris <guy@alum.mit.edu>
Reviewed-by: Guy Harris <guy@alum.mit.edu>
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Change-Id: I3861c0af24523315db6889b22ec93159174ba86f
Reviewed-on: https://code.wireshark.org/review/17966
Petri-Dish: Anders Broman <a.broman58@gmail.com>
Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org>
Reviewed-by: Anders Broman <a.broman58@gmail.com>
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Change-Id: I50ccedd876bf78961397b55e5a707c98900f7b9f
Reviewed-on: https://code.wireshark.org/review/17457
Petri-Dish: Dario Lombardo <lomato@gmail.com>
Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org>
Reviewed-by: Alexis La Goutte <alexis.lagoutte@gmail.com>
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Change-Id: I18779ad869c97a6ddd12e39fe2f7a1f7b0c8cf56
Reviewed-on: https://code.wireshark.org/review/14754
Petri-Dish: Alexis La Goutte <alexis.lagoutte@gmail.com>
Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org>
Reviewed-by: João Valverde <j@v6e.pt>
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Move the code to open capture devices and get properties of capture
devices there, joining the code to get a list of capture devices.
This lets us do a better job of handling pcap_create() in WinPcap,
including handling both WinPcap with pcap_create() and WinPcap without
pcap_create() at run time, just in case somebody tries using WinPcap 3.x
with a Wireshark built with WinPcap 4.x.
It also could make it easier to use libpcap/WinPcap directly in
Wireshark and TShark, if we have versions of libpcap/WinPcap that run
small helper utilities to do privileged functions, allowing programs
using them never to need elevated privileges themselves. That might
make it easier to fix some issues with running TShark when not saving to
a file (we could avoid the file entirely) and with delays when stopping
a capture in Wireshark (Wireshark could stop writing to the file as soon
as you click the stop button, rather than letting dumpcap do so when the
signal gets to it).
It might also make it easier to handle future versions of
libpcap/WinPcap that support using pcap_create()/pcap_activate() for
remote captures, and other future extensions to libpcap/WinPcap.
Rename some XXX_linktype routines to XXX_datalink to indicate that they
work with DLT_ values rather than LINKTYPE_ values; future versions of
libpcap might use LINKTYPE_ values in newer APIs.
Check for pcap_create() on all platforms in CMake.
Change-Id: Ia12e1692c96ec945c07a135d246958771a29c817
Reviewed-on: https://code.wireshark.org/review/13062
Petri-Dish: Guy Harris <guy@alum.mit.edu>
Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org>
Reviewed-by: Guy Harris <guy@alum.mit.edu>
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Change-Id: I081446fbbc242c01f8ac9dede575c3ea77421c42
Reviewed-on: https://code.wireshark.org/review/7103
Reviewed-by: Bill Meier <wmeier@newsguy.com>
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Change-Id: I60a1f671ba313c59ca1999ab703ee11370608758
Reviewed-on: https://code.wireshark.org/review/5123
Reviewed-by: Guy Harris <guy@alum.mit.edu>
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Leftover crud before I notied that RTLD_NEXT would do what I want.
Change-Id: I5e510e74c65b211e6cc6c300e760869abb399dc8
Reviewed-on: https://code.wireshark.org/review/5121
Reviewed-by: Guy Harris <guy@alum.mit.edu>
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The latest Xcode, as of today, has only 10.9 and 10.10 SDKs, which means
that, if we build Wireshark and request a deployment minimum release of
10.6, we'll be building against an SDK in which libpcap has routines
that aren't available in 10.6 and that doesn't use weak linking for
them, so the resulting binary won't actually work on 10.6.
Use the run-time loader to find those routines (currently, only
pcap_set_tstamp_precision()) and call them only if we find them.
On other UN*Xes, we still assume that we'll be running only on the
release against which we were built and newer releases.
Change-Id: Iab20d86fe3be4b299cfb6e25c1f95dc6e1581661
Reviewed-on: https://code.wireshark.org/review/5120
Reviewed-by: Guy Harris <guy@alum.mit.edu>
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Change-Id: I6c52ea9954a4c96f525e6d064dbf3fc2c71bea68
Reviewed-on: https://code.wireshark.org/review/4136
Reviewed-by: Guy Harris <guy@alum.mit.edu>
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It just means "pcap didn't give me any interfaces, and didn't report an
error". Hopefully, in the future, there will be pcap APIs that
distinguish between the (admittedly unlikely, these days) case of "there
really *are* no interfaces on which *anybody* can capture" and "you
don't have sufficient permission to capture", and we can report the
latter as an error. (Given that pcap supports more than just "regular
interfaces", though, there are cases where you don't have permission to
capture on those but you have permission to capture raw USB traffic, for
example, so perhaps what's really needed is per-interface indications of
permissions.)
Change-Id: I7b8abb0829e8502f5259c95e8af31655f79d36a1
Reviewed-on: https://code.wireshark.org/review/3169
Reviewed-by: Guy Harris <guy@alum.mit.edu>
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Some of those routines are used only in dumpcap; others are used in
TShark and Wireshark as well.
Change-Id: I9d92483f2fcff57a7d8b6bf6bdf2870505d19fb7
Reviewed-on: https://code.wireshark.org/review/2841
Reviewed-by: Guy Harris <guy@alum.mit.edu>
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