Separate the stuff that any record could have from the stuff that only
particular record types have; put the latter into a union, and put all
that into a wtap_rec structure.
Add some record-type checks as necessary.
Change-Id: Id6b3486858f826fce4b096c59231f463e44bfaa2
Reviewed-on: https://code.wireshark.org/review/25696
Reviewed-by: Guy Harris <guy@alum.mit.edu>
The first is deprecated, as per https://spdx.org/licenses/.
Change-Id: I8e21e1d32d09b8b94b93a2dc9fbdde5ffeba6bed
Reviewed-on: https://code.wireshark.org/review/25661
Petri-Dish: Anders Broman <a.broman58@gmail.com>
Petri-Dish: Dario Lombardo <lomato@gmail.com>
Reviewed-by: Anders Broman <a.broman58@gmail.com>
Keep the actual error code and pointer-to-error-string in the scanner
state, rather than pointers to the variables passed in to us.
Initialize them to 0 and NULL, respectively.
That way, when the actual scanner routine returns, we don't check for an
error by looking at the error variable pointed to by our argument, which
might not have been set by the scanner and might have stack junk in it,
we look at a structure member we set to 0 before the scan.
Change-Id: I81a4fd6d5cf5e56f5638fae1253c48dc50c9c36d
Reviewed-on: https://code.wireshark.org/review/17721
Reviewed-by: Guy Harris <guy@alum.mit.edu>
Set wirelen to the length from the header, but don't set caplen; start
caplen out as 0 and count it up whenever we add a byte.
Bug: 12754
Change-Id: Ib4e45e947df6077f97a423157c152dac9f57734a
Reviewed-on: https://code.wireshark.org/review/17120
Reviewed-by: Guy Harris <guy@alum.mit.edu>
Use %option extra_type= rather than #defining YY_EXTRA_TYPE.
Change comments to reflect that the state structure is used both by the
lexical analyzer and the parser.
Change-Id: I19a81de61cbd6e86d71154f376ef0681cc6d42fb
Reviewed-on: https://code.wireshark.org/review/14826
Reviewed-by: Guy Harris <guy@alum.mit.edu>
master-branch libpcap now generates a reentrant Flex scanner and
Bison/Berkeley YACC parser for capture filter expressions, so it
requires versions of Flex and Bison/Berkeley YACC that support that.
We might as well do the same. For libwiretap, it means we could
actually have multiple K12 text or Ascend/Lucent text files open at the
same time. For libwireshark, it might not be as useful, as we only read
configuration files at startup (which should only happen once, in one
thread) or on demand (in which case, if we ever support multiple threads
running libwireshark, we'd need a mutex to ensure that only one file
reads it), but it's still the right thing to do.
We also require a version of Flex that can write out a header file, so
we change the runlex script to generate the header file ourselves. This
means we require a version of Flex new enough to support --header-file.
Clean up some other stuff encountered in the process.
Change-Id: Id23078c6acea549a52fc687779bb55d715b55c16
Reviewed-on: https://code.wireshark.org/review/14719
Reviewed-by: Guy Harris <guy@alum.mit.edu>
("Unused" includes "set but not used".)
Change-Id: Id67859b366e8caa50262f8530630ec4e8ef1507a
Reviewed-on: https://code.wireshark.org/review/12457
Reviewed-by: Guy Harris <guy@alum.mit.edu>
(Using sed : sed -i '/^ \* \$Id\$/,+1 d')
Fix manually some typo (in export_object_dicom.c and crc16-plain.c)
Change-Id: I4c1ae68d1c4afeace8cb195b53c715cf9e1227a8
Reviewed-on: https://code.wireshark.org/review/497
Reviewed-by: Anders Broman <a.broman58@gmail.com>
as the "where to put the packet data" argument.
This lets more of the libwiretap code be common between the read and
seek-read code paths, and also allows for more flexibility in the "fill
in the data" path - we can expand the buffer as needed in both cases.
svn path=/trunk/; revision=49949
PARSED_RECORD if we got a packet;
PARSED_NONRECORD if the parser succeeded but didn't see a packet;
PARSE_FAILED if the parser failed.
Treat anything other than PARSED_RECORD as a failure, for now; I'm not
sure why we were treating "parser succeeded but didn't see a packet" as
success, as that was causing us to recognize some non-Ascend-output text
files as Ascend files and to return "records" with bogus caplen and len
values.
svn path=/trunk/; revision=32009
remove all compiler warnings:
a) prevent wrong malloc/free definitions by lex/yacc generated files
b) add int/time_t casts - MSVC2005 is more "sensitive" about this than MSVC6
svn path=/trunk/; revision=21078
Attached is an update to Lucent/Ascend trace parsing: fix a few bugs,
add support for ISDN and Ethernet captures - diffs to 0.10.9.
svn path=/trunk/; revision=13311
they have LF at the end of the line on UN*X and CR/LF on Windows;
hopefully this means that if a CR/LF version is checked in on Windows,
the CRs will be stripped so that they show up only when checked out on
Windows, not on UN*X.
svn path=/trunk/; revision=11400
addition to an error code, an error info string, for
WTAP_ERR_UNSUPPORTED, WTAP_ERR_UNSUPPORTED_ENCAP, and
WTAP_ERR_BAD_RECORD errors. Replace the error messages logged with
"g_message()" for those errors with g_strdup()ed or g_strdup_printf()ed
strings returned as the error info string, and change the callers of
those routines to, for those errors, put the info string into the
printed message or alert box for the error.
Add messages for cases where those errors were returned without printing
an additional message.
Nobody uses the error code from "cf_read()" - "cf_read()" puts up the
alert box itself for failures; get rid of the error code, so it just
returns a success/failure indication.
Rename "file_read_error_message()" to "cf_read_error_message()", as it
handles read errors from Wiretap, and have it take an error info string
as an argument. (That handles a lot of the work of putting the info
string into the error message.)
Make some variables in "ascend-grammar.y" static.
Check the return value of "erf_read_header()" in "erf_seek_read()".
Get rid of an unused #define in "i4btrace.c".
svn path=/trunk/; revision=9852
fix the interpretation of the date and time reported in capture
files;
use that date and time only to set the start date and time of
the capture, not to generate the time stamp for every packet.
Make the "struct tm" used for that local to the code to handle that
production in the grammar, rather than global.
For all captures, we *can* now fstat a compressed file (and have been
able to do so for a while, in fact), so revert to doing so and using the
ctime of the capture file if we can't get a date and time from the
file's contents.
svn path=/trunk/; revision=2605
"FILE_T" is either a "gzFile" or a "FILE *", depending on whether zlib
support is enabled or not). Fix various function declarations and
definitions.
svn path=/trunk/; revision=1984
there's no need to keep it around in memory - when the frame data is
read in when handing a frame, read in the information, if any, necessary
to reconstruct the frame header, and reconstruct it. This saves some
memory.
This requires that the seek-and-read function be implemented inside
Wiretap, and that the Wiretap handle remain open even after we've
finished reading the file sequentially.
This also points out that we can't really do X.25-over-Ethernet
correctly, as we don't know where the direction (DTE->DCE or DCE->DTE)
flag is stored; it's not clear how the Ethernet type 0x0805 for X.25
Layer 3 is supposed to be handled in any case. We eliminate
X.25-over-Ethernet support (until we find out what we're supposed to
do).
svn path=/trunk/; revision=1975
warnings about multiple declaration of "pseudo_header" as a common.
Instead, define it only in "ascend-grammar.y", and declare it in
"ascend-int.h" as an "extern".
svn path=/trunk/; revision=1103
parser/lexical analyzer in question are needed only in the ".c" files
for the generated parser and lexical analyzer, and Flex and Byacc/Bison
put them there; don't bother putting them in a header file, just
directly declare the functions with the right names.
svn path=/trunk/; revision=801
Guy Harris