and some compile errors in Tethereal, when compiling without libpcap.
If libpcap is missing (whether that's detected at compile time or, as on
Windows, at run time), don't call any of the "capture_prefs" routines -
the routine to create the capture preferences page wasn't called, so the
other routines can try to refer to non-existent widgets and other items
and crash.
Get rid of the stub routines in "capture_prefs()" used when compiling
without libpcap, as they're no longer called.
svn path=/trunk/; revision=5888
Allow "-" as the output file name in Wiretap, referring to the
standard error.
Optimize the capture loop.
Fix some of the error-message printing code in Ethereal and Tethereal.
Have Wiretap check whether it can seek on a file descriptor, and pass
the results of that test to the file-type-specific "open for output"
routine. Have the "open for output" routines for files where we need to
seek when writing the file return an error if seeks don't work.
svn path=/trunk/; revision=5884
the command-line options are processed, so that we don't crash if you've
set the "column.format" preference from the command line.
Fix a grammaro in a comment.
svn path=/trunk/; revision=5838
pass a non-zero count to "pcap_dispatch()" when possible;
fix the check after "test_for_fifo()";
if there's a maximum file size, we're definitely saving to a
file, so don't bother checking "ld.pdh", as it won't be null;
if writing to a FIFO, flush after "pcap_dispatch()" returns,
rather than after every packet, so we don't do as many writes to
the FIFO.
svn path=/trunk/; revision=5805
supported in Win32 applications; use the native Win32 mechanism for
catching ^C (and other events that would terminate a program running in
a console window).
That mechanism (and the signal mechanism in the MSVC++ C run-time) cause
the handler to be run in a separate thread, so it can't just do a
longjmp. Fortunately, WinPcap's packet-dispatch loop, unlike the
libpcap loop on some UNIX platforms, can be interrupted by ^C, so we
don't have to do the longjmp there - we can just set "ld.go" to FALSE to
terminate the capture loop.
svn path=/trunk/; revision=5776
names that are generated under Windows. Note in pcap-util.c that we
may want to separate interface device names and descriptions in the
future.
svn path=/trunk/; revision=5770
packets that we get from libpcap; if there's a read filter in effect,
only packets that pass the read filter get saved or printed, so that's
the number of packets that should be compared against the argument to
any "-c" flag, and the number that should be printed when we print
packet counts.
svn path=/trunk/; revision=5747
Use that in Tethereal rather than duplicating a pile of macros.
Get rid of the remaining uses of "stat()" in Tethereal - none of them
are necessary (they were just cut-and-pasted from Ethereal).
svn path=/trunk/; revision=5746
in the "packet_info" structure instead, as we don't need a pointer for
every single frame in the capture file, just for each frame for which we
currently have an open "epan_dissect_t".
svn path=/trunk/; revision=5614
- Exit if an error is found in the options or arguments.
- In print_usage(), improve the visibility of any getopt() error
message by suppressing the version information when -h is not
specified, and by adding an empty line.
Ethereal:
- If the -k option is specified, use the interface in the preferences
file, if present.
- Prevent the user from specifying any hidden options which are used
internally in -S mode.
Tethereal:
- Fix a memory leak in the processing of the -f option.
- In print_usage(), change "capture file type" to "output file type",
which I think is clearer; move the -q flag from the non-libpcap case
to the libpcap case.
svn path=/trunk/; revision=5525
the argument is "fields", dump out a table of the fields, as we
currently do; if the argument is "protocols", dump out a table of the
protocols.
svn path=/trunk/; revision=5462
be eliminated (because the function is called through a pointer, and
other functions called through the same pointer *do* use the argument)
as unused.
svn path=/trunk/; revision=5050
count display.
Update the Tethereal man page to reflect the new option.
Update both the Ethereal and Tethereal man pages to use the same style
to describe options, e.g.
-Z Cause Ethereal to draw the mark of Zorro on the display.
rather than
-Z Causes Ethereal to draw the mark of Zorro on the display.
(some were using the first and some were using the second).
Update the Ethereal man page to do the same for menu items.
Update both the Ethereal and Tethereal man pages to better describe the
"-N" flag (by noting that any form of name resolution *not* specified in
the flag is turned *off*).
svn path=/trunk/; revision=5005
Make the directory option to "--with-ucdsnmp" optional. Handle
"--with-ucdsnmp" similar to the way "--with-pcap" is handled.
Get rid of unnecessary #defines in "packet-cops.c".
Get rid of no-longer-necessary include of "dlfcn.h" in "packet-snmp.c".
svn path=/trunk/; revision=4930
Ethereal doesn't dissect SNMP if not linked with an SNMP library (and
*did* confuse at least one person into thinking that). Say "without
SNMP MIB support", instead, as you only lose the ability to read SNMP
MIBs and interpret OIDs and variable bindings according to those MIBs.
svn path=/trunk/; revision=4894
be initialized in gtk/follow_dlg.c
In gtk/follow_dlg.c, declare data_out_file as 'extern'.
In tethereal.c, no longer define 'data_out_file', as the storage
for it is now in follow.c.
svn path=/trunk/; revision=4830
non-existent functions.
Remove the "filetype" argument from the "can_write_encap" functions for
particular capture file types - the argument value is implicit, in that
the routine being called is the routine for that particular file type.
svn path=/trunk/; revision=4823
Move the ringbuffer capture options from the "capture_file" structure to
the structure for capture options, as they're a property of an
in-progress capture, not a property of a particular capture file.
svn path=/trunk/; revision=4799
"init_dissection()" which calls "epan_conversation_init()", does the
work that "init_all_protocols()" did, and then calls
"reassemble_init()", so that the standard sequence of dissection
initialization is done in one place, rather than having multiple places
call the same sequence of routines.
svn path=/trunk/; revision=4797
"capture_file" structure - they're a property of an in-progress capture,
not a property of an open capture file. Make them just variables.
The maximum number of packets to be captured should be a variable
separate from the "count" field in the "capture_file" structure - the
latter is a count of the packets in the capture file in question.
Have Boolean variables indicating whether a maximum packet count,
maximum capture file size, and maximum capture duration were specified.
If an option isn't set, and we're doing an "update list of packets in
real time" capture, don't pass the option to the child process with a
command-line argument.
Don't create "stop when the capture file reaches this size" or "stop
when the capture's run for this long" conditions if a maximum capture
file size or a maximum capture duration, respectively, haven't been
specified. Don't test or free a condition if it wasn't created.
Don't allow a 0 argument to the "-c" flag - the absence of a "-c" flag
is the way you specify "no limit on the number of packets".
Initialize the check boxes and spin buttons for the "maximum packets to
capture", "maximum capture size", and "maximum capture duration" options
to the values they had in the last capture. If an option wasn't
specified, don't read its value from the dialog box and set the
variable.
svn path=/trunk/; revision=4795
"int" and to check "getopt()"s return value with -1 rather than EOF.
Fix other "getopt()" loops to check against -1 as well (EOF is -1 on
most if not all platforms, but the Single UNIX Specification says
"getopt()" returns -1, so we should check against -1, not EOF).
svn path=/trunk/; revision=4793
"data source" has a name and a top-level tvbuff, and frames can have a
list of data sources associated with them.
Use the tvbuff pointer to determine which data source is the data source
for a given field; this means we don't have to worry about multiple data
sources with the same name - the only thing the name does is label the
notebook tab for the display of the data source, and label the hex dump
of the data source in print/Tethereal output.
Clean up a bunch of things discovered in the process of doing the above.
svn path=/trunk/; revision=4749
reading the capture file. Have callers of "wtap_snapshot_length()"
treat a value of 0 as "unknown", and default to WTAP_MAX_PACKET_SIZE (so
that, when writing a capture file in a format that *does* store the
snapshot length, we can at least put *something* in the file).
If we don't know the snapshot length of the current capture file, don't
display a value in the summary window.
Don't use "cfile.snap" as the snapshot length option when capturing -
doing so causes Ethereal to default, when capturing, to the snapshot
length of the last capture file that you read in, rather than to the
snapshot length of the last capture you did (or the initial default of
"no snapshot length").
Redo the "Capture Options" dialog box to group options into sections
with frames around them, and add units to the snapshot length, maximum
file size, and capture duration options, as per a suggestion by Ulf
Lamping. Also add units to the capture count option.
Make the snapshot length, capture count, maximum file size, and capture
duration options into a combination of a check box and a spin button.
If the check box is not checked, the limit in question is inactive
(snapshot length of 65535, no max packet count, no max file size, no max
capture duration); if it's checked, the spinbox specifies the limit.
Default all of the check boxes to "not checked" and all of the spin
boxes to small values.
Use "gtk_toggle_button_get_active()" rather than directly fetching the
state of a check box.
svn path=/trunk/; revision=4709
error message and quit if the user tries to use ring buffering with
another capture file format, and put a note about that in the Tethereal
man page.
svn path=/trunk/; revision=4615
"epan/..." pathnames, so as to avoid collisions with header files in any
of the directories in which we look (e.g., "proto.h", as some other
package has its own "proto.h" file which it installs in the top-level
include directory).
Don't add "-I" flags to search "epan", as that's no longer necessary
(and we want includes of "epan" headers to fail if the "epan/" is left
out, so that we don't re-introduce includes lacking "epan/").
svn path=/trunk/; revision=4586
Separate the preferences value for those flags and the name resolution
code's value into separate variables; this means that the resolution
code no longer depends on the preferences code, and may let us
eventually have the current setting and the preference setting differ
(so that a user can temporarily override the preference setting without
causing subsequent saves of the preferences to save the temporary
value).
Add routines to create various types of widgets for preferences, and to
fetch the values for "enumerated" preferences, and use them both in the
code to handle hardwired preference pages and table-driven preference
pages.
svn path=/trunk/; revision=4536
directly edit the capture preferences, rather than only being able to
set them implicitly from the values for the most recent capture.
Add a preferences item for the interface on which to capture.
Get rid of some unused variables.
svn path=/trunk/; revision=4510
"gboolean", as it's a Boolean value, and move it to the beginning of the
structure in Tethereal, as it is in Ethereal.
From Graeme Hewson:
Check for "pcap_dispatch()" returning -1, meaning an error
occurred; if it does, stop capturing, and report the error.
If we get a signal in tethereal, stop the capture with a
"longjmp()", rather than by clearning the "go" flag;
"pcap_dispatch()", on many platforms, keeps reading rather than
returning a captured packet count of 0 if the system call to
read packets returns -1 with an errno of EINTR, so the
"pcap_dispatch()" won't be broken out of if the signal handler
returns.
Fix a typo in an error message.
svn path=/trunk/; revision=4471
maximum size if there is no capture file; in fact, if you do, you get a
core dump. Skip the capture file size test if not capturing to a file.
svn path=/trunk/; revision=4434
Put a hash-table of "interesting" fields in the per-proto-tree data.
The dfilter code records which fields/protocols are "interesting" (by which
I mean, their value or existence is checked). Thus, the proto_tree routines
can create special arrays of field_info*'s that are ready for the dfilter
engine to use during a filter operation.
Also store the "proto_tree_is_visible" boolean, renamed "visible", in
the per-proto-tree data.
Move epan_dissect_t to its own header file to make #include dependencies
easier to handle.
Provide epan_dissect_fill_in_columns(), which accepts just the epan_dissect_t*
as an argument.
epan_dissect_new() needs to be followed by epan_dissect_run() for the
dissection to actually take place. Between those two calls,
epan_dissect_prime_dfilter() can be run 0, 1, or multiple times in order to
prime the empty proto_tree with the "intersesting" fields from the dfilter_t.
svn path=/trunk/; revision=4422
display representation should be put into protocol tree items if a
protocol tree is to be constructed; have it set "proto_tree_is_visible"
from that argument.
svn path=/trunk/; revision=4408
structure to the "packet_info" structure; only stuff that's permanently
stored with each frame should be in the "frame_data" structure, and the
"column_info" structure is not guaranteed to hold the column values for
that frame at all times - it was only in the "frame_data" structure so
that it could be passed to dissectors, and, as all dissectors are now
passed a pointer to a "packet_info" structure, it could just as well be
put in the "packet_info" structure.
That saves memory, by shrinking the "frame_data" structure (there's one
of those per frame), and also lets us clean up the code a bit.
svn path=/trunk/; revision=4370
already contain a pointer to an epan_dissect_t, which contains
the proto_tree.
Routines calling epan_dissect_new() do not create their own
proto_tree via proto_tree_create_root(); instead, they pass a boolean
to epan_dissect_new() telling it whether it should create the root
proto_tree.
svn path=/trunk/; revision=4343
trying to read the frame table, return -1 with "*err" set to
WTAP_ERR_SHORT_READ, don't return 0 - we've already decided that the
file is a NetMon file, so we shouldn't return a "this isn't a NetMon
file" indication, we should return a "this file is too short" error, as
that's what the problem is.
Fix up the error messages for WTAP_ERR_SHORT_READ to indicate that the
read might have gotten cut short in the middle of data other than a
packet.
svn path=/trunk/; revision=4331
files to get that big.
From Thomas Wittwer and Matthias Nyffenegger:
Support for "ring buffer mode", wherein there's a ring buffer of N
capture files; as each capture file reaches its maximum size (the ring
buffer works only with a maximum capture file size specified), Ethereal
rolls over to the next capture file in the ring buffer, replacing
whatever packets might be in it with new packets.
svn path=/trunk/; revision=4323
Guy Harris