Commit Graph

428 Commits

Author SHA1 Message Date
Guy Harris 114e7735b9 Call setlocale() before getting version information.
That way, the setlocale() call used to get the current locale will get
the right answer.

Change-Id: Ib43e16a9d98d08e5ddaff81fd3235f5b64d7b95b
Reviewed-on: https://code.wireshark.org/review/6197
Reviewed-by: Guy Harris <guy@alum.mit.edu>
2015-01-01 00:47:17 +00:00
Guy Harris 1bc2565bff Don't include signal.h unless we need it.
Change-Id: I3965e0951eee919720f780b5e52732fd18fd9786
Reviewed-on: https://code.wireshark.org/review/6194
Reviewed-by: Guy Harris <guy@alum.mit.edu>
2014-12-31 22:54:01 +00:00
Guy Harris 27be466c9b Do the full string in get_{compiled,runtime}_version_info().
Have them start the string with "Compiled" or "Running on", and return
the string when done.

Change-Id: Ic4d290c963621fa0385dc5aab766fd4ad31d3810
Reviewed-on: https://code.wireshark.org/review/6155
Reviewed-by: Guy Harris <guy@alum.mit.edu>
2014-12-31 06:29:11 +00:00
Pascal Quantin 84110d2981 tshark: endpoints statistics are not supported for now, do not list them in -z
Move statistics registration to "GUI" callback registration

Change-Id: Id27c049dc8f91d311e9231342ae40749ca0ff5fc
Reviewed-on: https://code.wireshark.org/review/6151
Reviewed-by: Pascal Quantin <pascal.quantin@gmail.com>
Petri-Dish: Pascal Quantin <pascal.quantin@gmail.com>
Reviewed-by: Michael Mann <mmann78@netscape.net>
2014-12-31 04:24:18 +00:00
Guy Harris c1f30471ca Move the version_info.c stuff to wsutil/ws_version_info.c.
Change-Id: I3a5c7e219974bfb924819b43b4d445eaf00e5bde
Reviewed-on: https://code.wireshark.org/review/6153
Reviewed-by: Guy Harris <guy@alum.mit.edu>
2014-12-31 03:41:02 +00:00
Dario Lombardo 63ebe918d9 Removed duplicated #include lines
Change-Id: I9cafa3cd5c74121168777d8c656e7e94e89efd3c
Reviewed-on: https://code.wireshark.org/review/6065
Petri-Dish: Pascal Quantin <pascal.quantin@gmail.com>
Reviewed-by: Martin Mathieson <martin.r.mathieson@googlemail.com>
Reviewed-by: Pascal Quantin <pascal.quantin@gmail.com>
2014-12-28 00:02:39 +00:00
Guy Harris 4536271c0a Don't use a leading - in getopt_long() option strings.
The behavior of a leading - is platform-dependent.  It also means that
non-option arguments are treated in a fashion that we're not handling,
so capture filters given as non-option arguments at the end of the
command line don't work.  (The Linux getopt() man page says that a
leading - "is used by programs that were written to expect options and
other argv-elements in any order and that care about the ordering of the
two."  We are not such a program.)

Change-Id: I5610cf90a8218d48f7516abacc367e0affa3b549
Based-On-A-Change-From: Peter Hatina <phatina@redhat.com>
Reviewed-on: https://code.wireshark.org/review/6071
Reviewed-by: Guy Harris <guy@alum.mit.edu>
2014-12-27 02:47:04 +00:00
Guy Harris c2c9a09880 Use getopt_long() for the first pass through the argument list.
That way:

	1) we don't have to worry about the system getopt() and our
	   getopt_long(), on platforms that have getopt() but not
	   getopt_long() (Solaris prior to Solaris 10, HP-UX, AIX), not
	   working well together;

	2) if necessary, we can handle long options in the first pass.

Switch to using getopt_long() for the *second* pass for the GTK+ version
of Wireshark.

Use the documented mechanism for resetting the argument parser for the
glibc version of getopt_long(); use the mostly-undocumented-but-at-least-
they-documented-optreset mechanism for the *BSD version.

(We should look into doing only one pass, saving away arguments that
can't fully be processed in the first pass for further processing after
initializing libwireshark.)

Change-Id: Ide5069f1c7c66a5d04acc712551eb201080ce02f
Reviewed-on: https://code.wireshark.org/review/6063
Reviewed-by: Guy Harris <guy@alum.mit.edu>
2014-12-26 22:39:46 +00:00
Guy Harris e08eba9b9e Only include <wsutil/os_version_info.h> if we need it.
Change-Id: Idee0e7205969ac2e7b33c4748a1463a0bfffe0a6
Reviewed-on: https://code.wireshark.org/review/6051
Reviewed-by: Guy Harris <guy@alum.mit.edu>
2014-12-25 21:03:45 +00:00
Guy Harris 20503c7047 Check for getopt_long(), not getopt().
We support three types of platforms:

	1) UN*Xes that have both getopt() and getopt_long();

	2) UN*Xes that have getopt() but not getopt_long();

	3) Windows, which has neither.

Checking for getopt_long() lets us distinguish between 1) and 2) and
build getopt_long() for them.

Change-Id: Iaf0f142f9bebaa2eed2128d544ec9786711def45
Reviewed-on: https://code.wireshark.org/review/6045
Reviewed-by: Guy Harris <guy@alum.mit.edu>
2014-12-25 01:11:10 +00:00
Stephen Fisher 2d8ec49ffa Move twelve show_version() functions from the varoius programs and
Wireshark UI files into a single one in wsutil.

Change-Id: I0a64f0cc8106bd681bd185289c36272c4c43baad
Reviewed-on: https://code.wireshark.org/review/6026
Reviewed-by: Stephen Fisher <sfisher@sdf.org>
2014-12-24 16:51:45 +00:00
Gerald Combs 9ba9cd83a4 Qt: Add a CaptureFile class.
Wrap the capture_file struct in a QObject which translates cf_cb_* and
capture_cb_* events into signals. Move the global cfile to
capture_file.cpp.

Don't use a void pointer for the capture file struct.

Change-Id: Ic5d5efb4bb1db64aa0247245890e5669b1da723a
Reviewed-on: https://code.wireshark.org/review/5885
Petri-Dish: Gerald Combs <gerald@wireshark.org>
Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org>
Reviewed-by: Gerald Combs <gerald@wireshark.org>
2014-12-20 17:39:29 +00:00
Guy Harris 0885d29451 Make sure err_info is always set, and print it iff it's non-null.
Change-Id: Ib5c600c491a3d8adcfa91c00fa9445283610545b
Reviewed-on: https://code.wireshark.org/review/5830
Reviewed-by: Guy Harris <guy@alum.mit.edu>
2014-12-18 04:04:19 +00:00
Guy Harris 6011a047d3 WTAP_ERR_UNWRITABLE_ errors aren't returned by reads or open-for-reading.
Check for them *only* on opening for writing and writes.

Change-Id: I4b537d511ec04bcfc81f69166a2b9a2ee9310067
Reviewed-on: https://code.wireshark.org/review/5827
Reviewed-by: Guy Harris <guy@alum.mit.edu>
2014-12-18 00:41:43 +00:00
Guy Harris aa27e665b1 Rename WTAP_ERR_REC_TYPE_UNSUPPORTED to WTAP_ERR_UNWRITABLE_REC_TYPE.
That indicates that it's a problem specific to *writing* capture files;
we've already converted some errors to that style, and added a new one
in that style.

Change-Id: I8268316fd8b1a9e301bf09ae970b4b1fbcb35c9d
Reviewed-on: https://code.wireshark.org/review/5826
Reviewed-by: Guy Harris <guy@alum.mit.edu>
2014-12-18 00:32:14 +00:00
Guy Harris 51522b3372 Handle "I can't map this for that file format" better.
For cases where record (meta)data is something that can't be written out
in a particular file format, return WTAP_ERR_UNWRITABLE_REC_DATA along
with an err_info string.

Report (and free) that err_info string in cases where
WTAP_ERR_UNWRITABLE_REC_DATA is returned.

Clean up some other error reporting cases, and flag with an XXX some
cases where we aren't reporting errors at all, while we're at it.

Change-Id: I91d02093af0d42c24ec4634c2c773b30f3d39ab3
Reviewed-on: https://code.wireshark.org/review/5823
Reviewed-by: Guy Harris <guy@alum.mit.edu>
2014-12-18 00:03:26 +00:00
Guy Harris d2eddde5bd Report WTAP_ERR_UNSUPPORTED correctly.
WTAP_ERR_FILE_UNKNOWN_FORMAT is reported if the file is in a format that
libwiretap doesn't know about (either because it's not a capture file at
all or because it's a capture file in a format it doesn't support).
WTAP_ERR_UNSUPPORTED is for files in a *known* format that are using
features or file format elements (record type, link-layer header type,
etc.) that libwireshark doesn't support.  Fix some copy-and-pasteos
causing WTAP_ERR_UNSUPPORTED to be reported with a message appropriate
for WTAP_ERR_FILE_UNKNOWN_FORMAT.

Change-Id: Ic675ffd501c52838d8944a6c61e1b01041b73098
Reviewed-on: https://code.wireshark.org/review/5799
Reviewed-by: Guy Harris <guy@alum.mit.edu>
2014-12-17 08:47:59 +00:00
Guy Harris ddcc2aee3d Rename WTAP_ERR_UNSUPPORTED_FILE_TYPE to WTAP_ERR_UNWRITABLE_FILE_TYPE.
That makes it clearer what the problem is, and that it should only be
returned by the dump code path, not by the read code path.

Change-Id: I22d407efe3ae9fba7aa25f08f050317549866442
Reviewed-on: https://code.wireshark.org/review/5798
Reviewed-by: Guy Harris <guy@alum.mit.edu>
2014-12-17 08:31:49 +00:00
Guy Harris dbdcae80ba Rename WTAP_ERR_UNSUPPORTED_ENCAP to WTAP_ERR_UNWRITABLE_ENCAP.
That makes it clearer what the problem is, and that it should only be
returned by the dump code path, not by the read code path.

Change-Id: Icc5c9cff43be6c073f0467607555fa7138c5d074
Reviewed-on: https://code.wireshark.org/review/5797
Reviewed-by: Guy Harris <guy@alum.mit.edu>
2014-12-17 06:41:45 +00:00
Guy Harris 846bb53948 Add a Buffer to wtap_pkthdr to hold file-type-specific packet metadata.
For example, this can be used for pcap-ng options not mapped to
file-type-independent metadata values.

Change-Id: I398b324c62c1cc1cc61eb5e9631de00481b4aadc
Reviewed-on: https://code.wireshark.org/review/5549
Reviewed-by: Guy Harris <guy@alum.mit.edu>
2014-12-01 00:31:03 +00:00
Guy Harris 81ab6012fe Clean up routine names, don't pass capture_file into libwireshark.
Give all routines in epan/print.c that write a particular format a name
beginning with write_{formatname}.

If routines write columns, rather than the raw protocol tree, don't give
it a name containing proto_tree.

Get rid of empty preamble/finale routines.

For CSV, the preamble routine writes out column titles, so call it
write_csv_column_titles().

For C arrays, the body routine writes out raw hex data, so call it
write_carrays_hex_data().

capture_file isn't a structure defined by libwireshark, so don't make it
an argument passed into libwireshark.

Change-Id: I5a7e04de9382cf51a59d9d9802f815b8b3558332
Reviewed-on: https://code.wireshark.org/review/5536
Reviewed-by: Guy Harris <guy@alum.mit.edu>
2014-11-29 22:44:29 +00:00
Guy Harris 741db4c751 Get rid of another global in the print code.
Pass the "output only these protocols" hash table as an argument,
instead.

Change-Id: Id8540943037e7b9bbfe377120c3f60dbe54fe0f1
Reviewed-on: https://code.wireshark.org/review/5440
Reviewed-by: Guy Harris <guy@alum.mit.edu>
2014-11-22 09:07:46 +00:00
Guy Harris b19b12a85d Get rid of write_headers global variable.
Have write_psml_preamble() and write_csv_preamble() take a capture_file *
as an argument, so they can print the column titles themselves, rather
than having to defer it to the routine that prints packet data.

Change-Id: Ifd1b7a13062be8ad46846315976922a752778153
Reviewed-on: https://code.wireshark.org/review/5438
Reviewed-by: Guy Harris <guy@alum.mit.edu>
2014-11-22 08:07:24 +00:00
Guy Harris 25f950eca9 Add tshark -G dissector-tables to dump a list of dissector tables.
That list doesn't show the entries in the dissector tables, just
information about the tables themselves.

Clean up some tshark man page issues while we're at it.

Change-Id: I70beee34110f5c0d58105944dd71105a8400f5ca
Reviewed-on: https://code.wireshark.org/review/5360
Reviewed-by: Guy Harris <guy@alum.mit.edu>
2014-11-17 02:26:57 +00:00
Guy Harris 225c86f7a2 Do the "-z help" processing separately, and do it for Wireshark as well.
Yes, Wireshark does a bunch of GUI stuff, and then takes the window down
before printing the help, but the same is true for some command-line
error messages as well.

Change-Id: Id501468416c83308e4c0a9e7a66116d8d33a9d84
Reviewed-on: https://code.wireshark.org/review/5317
Reviewed-by: Guy Harris <guy@alum.mit.edu>
2014-11-15 00:27:48 +00:00
Guy Harris 4d3c4c4f12 Rename stat_cmd_args.[ch] to stat_tap_ui.[ch].
The intent is to handle more than just command-line arguments; reflect that.

Change-Id: Ia10efda85a9d11c6579d1bec6f789cee30d9e825
Reviewed-on: https://code.wireshark.org/review/5304
Reviewed-by: Guy Harris <guy@alum.mit.edu>
2014-11-14 18:52:06 +00:00
Guy Harris 9f2a87803b Get rid of unnecessary includes of ctype.h.
Change-Id: Ibf9385715b85186f5c7289165acea7233b3fabde
Reviewed-on: https://code.wireshark.org/review/4804
Reviewed-by: Guy Harris <guy@alum.mit.edu>
2014-10-18 00:06:19 +00:00
Guy Harris a566f617d8 No need for WTAP_ERR_CANT_READ.
Unlike the standard I/O routines, the code we introduced that supports
fast random seeking on gzipped files will always supply some specific
error code for read errors, so we don't need WTAP_ERR_CANT_READ.

Add WTAP_ERR_CANT_WRITE for writing, as we're still using the standard
I/O routines for that.  Set errno to WTAP_ERR_CANT_WRITE before calling
fwrite() in wtap_dump_file_write(), so that it's used if fwrite() fails
without setting errno.

Change-Id: I6bf066a6838284a532737aa65fd0c9bb3639ad63
Reviewed-on: https://code.wireshark.org/review/4540
Reviewed-by: Guy Harris <guy@alum.mit.edu>
2014-10-07 23:19:56 +00:00
Guy Harris 54b733ce9a Make the time stamp resolution per-packet.
Pcap-ng files don't have a per-file time stamp resolution, they have a
per-interface time stamp resolution.  Add new time stamp resolution
types of "unknown" and "per-packet", add the time stamp resolution to
struct wtap_pkthdr, have the libwiretap core initialize it to the
per-file time stamp resolution, and have pcap-ng do the same thing with
the resolution that it does with the packet encapsulation.

Get rid of the TS_PREC_AUTO_XXX values; just have TS_PREC_AUTO, which
means "use the packet's resolution to determine how many significant
digits to display".  Rename all the WTAP_FILE_TSPREC_XXX values to
WTAP_TSPREC_XXX, as they're also used for per-packet values.

Change-Id: If9fd8f799b19836a5104aaa0870a951498886c69
Reviewed-on: https://code.wireshark.org/review/4349
Reviewed-by: Guy Harris <guy@alum.mit.edu>
2014-09-28 18:38:18 +00:00
Pascal Quantin a3c4133847 tshark: fix -H option
The dump of the address info list must be differed to the end of the processing so as to know which host name was actually used in the capture

Bug: 10507
Change-Id: I44dbfae918d4ae92f9740c309804c7ff21bb4e1b
Reviewed-on: https://code.wireshark.org/review/4327
Reviewed-by: Pascal Quantin <pascal.quantin@gmail.com>
Petri-Dish: Pascal Quantin <pascal.quantin@gmail.com>
Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org>
Reviewed-by: Michael Mann <mmann78@netscape.net>
2014-09-27 12:13:06 +00:00
Gerald Combs ea6fa049c9 Update the simple dialog code.
Rename simple_dialog_qt.{cpp,h} to simple_dialog.{cpp,h}. Make it a
subclass of QMessageBox. Queue messages at startup similar to GTK+.

Move the GTK+-specific simple_dialog declarations to
gtk/simple_dialog.h.

Don't yell at the user so much. Replace exclamation points with periods.

Change-Id: I1cc771106222d5e06f1f52d67ac29d6dc367cce4
Reviewed-on: https://code.wireshark.org/review/4288
Reviewed-by: Gerald Combs <gerald@wireshark.org>
2014-09-25 22:02:43 +00:00
Guy Harris 22a0d65a9a Free err_info on WTAP_ERR_DECOMPRESS.
Change-Id: I57fbb17baf43b0f1365fef72778ac0e65935456a
Reviewed-on: https://code.wireshark.org/review/4210
Reviewed-by: Guy Harris <guy@alum.mit.edu>
2014-09-20 19:07:22 +00:00
Graham Bloice 97546165fa Modify includes of config.h so that out-of-tree builds, i.e. CMake
don't pick up the in-tree copy.

Change-Id: I7ec473876cdba1a025c52362d7f6adc62d24ce71
Reviewed-on: https://code.wireshark.org/review/3798
Petri-Dish: Graham Bloice <graham.bloice@trihedral.com>
Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org>
Reviewed-by: Roland Knall <rknall@gmail.com>
Reviewed-by: Graham Bloice <graham.bloice@trihedral.com>
2014-08-24 08:04:08 +00:00
Michael Mann 018b84de84 Refactor "common" hostlist/endpoint table functionality.
This is very similar in architecture to the changes made to the Conversation table functionality.  Since all conversations have endpoints/hostlists, the "registered" list is shared for both.

Change-Id: Ie8c6910a68a1b3f27c5b18c4494f49b9404a7b31
Reviewed-on: https://code.wireshark.org/review/3214
Petri-Dish: Michael Mann <mmann78@netscape.net>
Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org>
Reviewed-by: Anders Broman <a.broman58@gmail.com>
2014-08-18 04:24:39 +00:00
Bill Meier f3dd7fe1eb Fix whitespace/indentation to match editor modelines.
Change-Id: I3445ae22f10584582d465bf632942e016f5f70ca
Reviewed-on: https://code.wireshark.org/review/3452
Reviewed-by: Bill Meier <wmeier@newsguy.com>
2014-08-05 20:42:21 +00:00
Guy Harris 0734ac385f Rename buffer_ routines to ws_buffer_ to avoid name collisions.
In particular, epan/wslua/lrexlib.c has its own buffer_ routines,
causing some linker warnings on some platforms, as reported in bug
10332.

(Not to be backported to 1.12, as that would change the API and ABI of
libwsutil and libwiretap.  We should also make the buffer_ routines in
epan/wslua/lrexlib.c static, which should also address this problem, but
the name change avoids other potential namespace collisions.)

Change-Id: I1d42c7d1778c7e4c019deb2608d476c52001ce28
Reviewed-on: https://code.wireshark.org/review/3351
Reviewed-by: Guy Harris <guy@alum.mit.edu>
2014-08-02 11:01:29 +00:00
Michael Mann dcf6d44b7f Apply refactored "conversation" (tap) data to TShark.
I intentionally left the fields displayed alone (so they don't exactly match Wireshark GUI), because as Guy points out in bug 6310, not sure its A Bug or A Feature.  But at least all types of conversations allowed are in sync with Wireshark GUI.

Bug:6310
Change-Id: I722837df510a39dadc1f9a07a99275509516698c
Reviewed-on: https://code.wireshark.org/review/3212
Petri-Dish: Michael Mann <mmann78@netscape.net>
Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org>
Reviewed-by: Michael Mann <mmann78@netscape.net>
2014-07-30 16:12:54 +00:00
Michael Mann 31ecdf5b06 Refactor "common" Conversation table functionality.
Refactor (non-GUI) conversation table functionality from gtk/Qt to epan.  Also refactor "common GUI" conversation table functionality.

The idea is to not have to modify the GUI when a dissector adds a new "conversation type"

Change-Id: I11f08d0d7edd631218663ba4b902c4a4c849acda
Reviewed-on: https://code.wireshark.org/review/3113
Reviewed-by: Gerald Combs <gerald@wireshark.org>
2014-07-26 20:59:42 +00:00
Peter Wu 0492921adc Replace lseek/fstat by ws_lseek64/ws_fstat64
lseek returns an off_t type which is system-dependent. Use ws_lseek64 in
favor of lseek as that supports 64-bit quanities.

Use ws_fstat64 instead of stat to support 64-bit file sizes on Windows.
For the majority of the changes, this makes no difference as they do not
apply to Windows ("ifndef _WIN32"; availability of st_blksize).

There are no other users of "struct stat" besides the portability code
in wsutil. Forbid the use of fstat and lseek in checkAPIs.

Change-Id: I17b930ab9543f21a9d3100f3795d250c9b9ae459
Reviewed-on: https://code.wireshark.org/review/3198
Reviewed-by: Guy Harris <guy@alum.mit.edu>
2014-07-25 21:26:01 +00:00
Guy Harris 4028f56709 Clean up indentation (get rid of tabs).
Change-Id: I14917737db30c80af2d40e40efd79ceb6aea79f8
Reviewed-on: https://code.wireshark.org/review/3170
Reviewed-by: Guy Harris <guy@alum.mit.edu>
2014-07-22 23:57:02 +00:00
Guy Harris f6ce0cdacd Get rid of NO_INTERFACES_FOUND - it's not an error.
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>
2014-07-22 23:53:49 +00:00
Evan Huus 42b537ea49 Reset state when cycling ring-buffer files in tshark.
This has several implications:
 - we match user expectations that a ring-buffered tshark capture will run
   forever without running out of resources (except where we still have leaks)
 - we lose reassembly and request/response matching when the relevant packets
   are split across files, but this actually makes our output more consistent
   with dissecting those files after-the-fact

I have not made it configurable in this change because I'm not really sure
there's a use case for the old behaviour - if you're running a ring-buffer
capture in the first place it's because you're willing to discard old data to
limit resource usage. If you want the full dissection without breaks, just don't
use a ring buffer at all and take the resource hit in both disk and memory.

Change-Id: I7d8f84b2e6040b430b7112a45538041f2c30f489
Reviewed-on: https://code.wireshark.org/review/2669
Reviewed-by: Jörg Mayer <jmayer@loplof.de>
Reviewed-by: Evan Huus <eapache@gmail.com>
2014-07-05 22:08:59 +00:00
Guy Harris 9e6487f247 Move utility routines for capturing into a libcaputils static library.
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>
2014-07-04 07:25:26 +00:00
Guy Harris 66b02c75ed Include <sys/capaibility.h> to get _LINUX_CAPABILITY_VERSION defined.
It's no longer used in version_info.c, but is used in the main source
files of TShark and Wireshark (it's already included in dumpcap).

Change-Id: I2169a2bbed678baf26fc8711d7c13d95cce3ee2a
Reviewed-on: https://code.wireshark.org/review/2819
Reviewed-by: Guy Harris <guy@alum.mit.edu>
2014-07-03 15:22:45 +00:00
Guy Harris 1692c520ef Include "capture-pcap-util.h" even if we don't have libpcap.
The routines to get libpcap version information just say "no pcap here"
if we don't have it, so they're called regardless of whether we were
compiled with it.

Change-Id: I4e58cce83f7c0e36aa6ef9b40ec7075732402f3b
Reviewed-on: https://code.wireshark.org/review/2800
Reviewed-by: Guy Harris <guy@alum.mit.edu>
2014-07-03 09:16:39 +00:00
Guy Harris 35c47214e9 Get rid of an extra blank line.
Change-Id: I321ef1404e37ebb13a456d18eeb81285b7ba477f
Reviewed-on: https://code.wireshark.org/review/2796
Reviewed-by: Guy Harris <guy@alum.mit.edu>
2014-07-03 08:56:00 +00:00
Guy Harris b4ce352539 Make --help and --version information a bit more uniform.
Have --version print the version number, the copyright information, the
"compiled with" information, the "running on/with" information, and the
compiler information.

Have --help print the version number, a one-line summary of what the
program does, a reference to http://www.wireshark.org for more
information, a Usage: line, and a list of command-line options.

This means programs doing that don't need to include version.h; that's
left up to get_ws_vcs_version_info() to do.

Change-Id: Idac641bc10e4dfd04c9914d379b3a3e0cc5ca8cb
Reviewed-on: https://code.wireshark.org/review/2794
Reviewed-by: Guy Harris <guy@alum.mit.edu>
2014-07-03 08:46:01 +00:00
Guy Harris 6b3391c60a Regularize the help output of programs.
Only print to the standard output, and only give the version
information, if a "print help" command-line option is specified.
Otherwise, leave out the version information, and print to the standard
error.

Leave out the copyright information; it's extra cruft, and

	http://www.gnu.org/prep/standards/html_node/_002d_002dhelp.html

doesn't say anything about it (and bash, at least, doesn't print it).

Change-Id: Ic5029ccf96e096453f3bd38383cc2dd355542e8a
Reviewed-on: https://code.wireshark.org/review/2789
Reviewed-by: Guy Harris <guy@alum.mit.edu>
2014-07-03 02:29:54 +00:00
Guy Harris 66c342ed59 Regularize the first line of version output.
For Wireshark, say "Wireshark", not "wireshark".

For other programs, put "(Wireshark)" after the program name, as per

	http://www.gnu.org/prep/standards/html_node/_002d_002dversion.html

("If the program is a subsidiary part of a larger package, mention the
package name in parentheses, like this").

Change-Id: I68558f64cfa6ee4423e42f3d6b120633ef1b2716
Reviewed-on: https://code.wireshark.org/review/2788
Reviewed-by: Guy Harris <guy@alum.mit.edu>
2014-07-03 02:03:35 +00:00
Guy Harris 0cf54e7827 Drop privileges even earlier.
Do it at the same point at which Wireshark does so.  Do some other
things in the same order as well.

Change-Id: I2925366d49d14271ceffa1a938b5e3450337c772
Reviewed-on: https://code.wireshark.org/review/2743
Reviewed-by: Guy Harris <guy@alum.mit.edu>
2014-07-01 10:11:49 +00:00