Commit Graph

17 Commits

Author SHA1 Message Date
Gilbert Ramirez a505b64912 Get rid of signed/unsigned comparison warnings in wiretap.
svn path=/trunk/; revision=4077
2001-10-25 20:29:24 +00:00
Guy Harris 3c9efdf478 Use longs as file offsets, so that on platforms with 64-bit "long" we
can handle capture files bigger than 2GB.

svn path=/trunk/; revision=3993
2001-10-04 08:30:36 +00:00
Guy Harris a251addb63 Obliging every capture file reader's "open()" routine to seek to the
beginning of the file before reading anything from the file is bogus -
do that in the loop that tries each of the open routines, instead.
(They may have to reset the seek pointer later if, for example, the
capture file begins with the first packet, and the "open()" routine
looks at that packet to try to guess whether the packet is in the file
format in question.)

Set "wth->data_offset" to 0 while you're at it, so capture file readers
don't have to do that, either.

svn path=/trunk/; revision=3123
2001-03-10 06:33:58 +00:00
Guy Harris 4933cc340f "wtap_read()" must *always* set "*err" when it returns FALSE - if it's
just an EOF, it should set "*err" to 0.  Fix up a bunch of read routines
for various capture file types to set "*err" appropriately.

svn path=/trunk/; revision=2667
2000-11-19 03:47:36 +00:00
Gilbert Ramirez c312f69abc Make sure to pass the sent/received direction from pppdump.c in
pseudo_header.
Use generic "p2p_phdr" instead of "lapd_phdr". Modify toshiba.c and
packet-lapd.c to take that into account.
Add frame.p2p_dir, a filterable field, 0=sent, 1=recvd
Make p2p_dir available in packe_info, as I think it will be needed
in VJ COMP and UNCOMP dissection.

Rename WTAP_ENCAP_TR to WTAP_ENCAP_TOKEN_RING.

Mention pppd-log support in man page.
Mention atmsnoop in README.

svn path=/trunk/; revision=2455
2000-09-21 04:41:37 +00:00
Gilbert Ramirez f52ffba407 Change wtap_read() API so that the data offset is set via a pointer, and
a "keep reading" boolean value is returned from the function.
This avoids having to hack around the fact that some file formats truly
do have records that start at offset 0. (i4btrace and csids have no
file header. Neither does the pppdump-style file that I'm looking at right now).

svn path=/trunk/; revision=2392
2000-09-07 05:34:23 +00:00
Gilbert Ramirez d7e6e0e384 Add wtap-int.h. Move definitions relevant to the internal workins of wiretap
to that file, leave public definitions in wtap.h.

Rename "union pseudo_header" to "union wtap_pseudo_header".
Make the wtap_pseudo_header pointer available in packet_info struct.

svn path=/trunk/; revision=1989
2000-05-19 23:07:04 +00:00
Guy Harris 0cc75a3569 In Wiretap, a file stream handle is a "FILE_T", not a "FILE_T *" (a
"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
2000-05-19 08:18:17 +00:00
Guy Harris f3d90d30a4 Remove the "union pseudo_header" from the "frame_data" structure;
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
2000-05-18 09:09:50 +00:00
Gilbert Ramirez 9bcac07751 Fix for reading toshiba trace files that were created by using the
"save session" feature in many Windows-based telnet apps. CRT, by VanDyke,
in particular, will put in newlines at 80 columns.

svn path=/trunk/; revision=1692
2000-03-04 14:22:29 +00:00
Guy Harris 7a36bede0b We are obliged to define HAVE_UNISTD_H in "config.h"; to avoid the
hideous problem on FreeBSD 3.[23] (and perhaps other BSDs) if
HAVE_UNISTD_H is defined before "zlib.h" is included, turn "file_seek()"
into a subroutine defined in a file that *undefines* HAVE_UNISTD_H
before including "zlib.h", so that the *only* call to "gzseek()" is made
from a file that does not have HAVE_UNISTD_H defined when it includes
"zlib.h".

Move "file_error()" to that file while you're at it, so it holds all the
wrappers that hide the presence or absence of zlib from routines to read
capture files.

Turn "file.h", which declared those wrapper functions as well as wrapper
macros, into "file_wrapper.h" - it belongs with the "file_wrapper.c"
file that defines the wrapper functions, not with "file.c" which handles
higher-layer file access functions.

Remove the comment in "configure.in" that explained why defining
HAVE_UNISTD_H was a bad idea, as we're not obliged to define it and work
around the problem.  (The comment in "file_wrapper.c" explains the
workaround.)

svn path=/trunk/; revision=1463
2000-01-13 07:09:20 +00:00
Gilbert Ramirez c20bb290c5 Add relative timestamps. The Toshiba ISDN router has the same problem
as the Ascend routers; those little buggers don't remember time very well.
The only timestamp available in the trace is relative to the beginning
of the trace.

So, right now I'm just using this relative timestamp as the absoulte time.
All my times are in 1969 (my timezone is GMT - 6), but all I care about
for now is the relative time, which is preserved even if the absolute time
is in the wrong decade.

svn path=/trunk/; revision=1404
2000-01-01 04:01:41 +00:00
Gilbert Ramirez 95d752b466 Fixed the checking of the return value from file_gets() (fgets()).
svn path=/trunk/; revision=1053
1999-11-18 07:04:29 +00:00
Gilbert Ramirez 56b9fc4861 Remove potential for a bad toshiba trace file to overflow a fixed char[]
buffer in sscanf call.

svn path=/trunk/; revision=1012
1999-11-11 19:19:17 +00:00
Gilbert Ramirez 3a64f9c655 Remove unnecessary file_seek per packet, speeding up loading of a
gzipped toshiba file.

svn path=/trunk/; revision=1005
1999-11-11 06:29:59 +00:00
Gilbert Ramirez 4ec9c54b4b Add LAPD support.
svn path=/trunk/; revision=1004
1999-11-11 05:36:16 +00:00
Gilbert Ramirez 558e714449 Add a module to wiretap to be able to read trace files from Toshiba's
line of ISDN routers. Much like the ascend reader, this module reads an
ASCII hex dump of trace data.

Rearranged the order in which wiretap tries trace files, to keep the
ASCII-readers (ascend and toshiba) at the end, and put the binary-readers
(everything else) at the front of the list. If a telnet session of
and ascend trace or toshiba trace were captured near the beginning of
another trace, wiretap might think the trace was ascend or toshiba if it
tried that module first.

Fixed the way wtap_seek_read() selects functions to call. It was using
the encap type instead of the file type. We got lucky because
WTAP_ENCAP_ASCEND == WTAP_FILE_ASCEND

svn path=/trunk/; revision=952
1999-10-31 17:46:11 +00:00