which could use lseek() and were thus expensive due to system call
overhead. To avoid making a system call for every packet on a
sequential read, we maintained a data_offset field in the wtap structure
for sequential reads.
It's now a routine that just returns information from the FILE_T data
structure, so it's cheap. Use it, rather than maintaining the data_offset
field.
Readers for some file formats need to maintain file offset themselves;
have them do so in their private data structures.
svn path=/trunk/; revision=42423
by Wiretap, to indicate whether certain fields in that structure
actually have data in them.
Use the "time stamp present" flag to omit showing time stamp information
for packets (and "packets") that don't have time stamps; don't bother
working very hard to "fake" a time stamp for data files.
Use the "interface ID present" flag to omit the interface ID for packets
that don't have an interface ID.
We don't use the "captured length, separate from packet length, present"
flag to omit the captured length; that flag might be present but equal
to the packet length, and if you want to know if a packet was cut short
by a snapshot length, comparing the values would be the way to do that.
More work is needed to have wiretap/pcapng.c properly report the flags,
e.g. reporting no time stamp being present for a Simple Packet Block.
svn path=/trunk/; revision=41185
directly to k12text_set_pseudo_header(), so that it's passed the right
encapsulation for seek-and-read as well as for read. Fixes the
"malformed frames when reading some K12 text files" problem for which
we're using bug 6735.
svn path=/trunk/; revision=40508
form of corruption/bogosity in a file, including in a file header as
well as in records in the file. Change the error message
wtap_strerror() returns for it to reflect that.
Use it for some file header problems for which it wasn't already being
used - WTAP_ERR_UNSUPPORTED shouldn't be used for that, it should only
be used for files that we have no reason to believe are invalid but that
have a version number we don't know about or some other
non-link-layer-encapsulation-type value we don't know about.
svn path=/trunk/; revision=40175
same.
Add to wiretap/pcap-common.c a routine to fill in the pseudo-header for
ATM (by looking at the VPI, VCI, and packet data, and guessing) and
Ethernet (setting the FCS length appropriately). Use it for both pcap
and pcap-ng files.
svn path=/trunk/; revision=38840
can't be saved in compress form" are both equivalent to "this file file
format requires seeking when writing it". Change the "can compress"
Boolean in the file format table to "writing requires seeking", give all
the entries the proper value, and do the checks for attempting to write
a file format to a pipe or write it in compressed format to common code.
This means we don't need to pass the "can't seek" flag to the dump open
routines.
svn path=/trunk/; revision=36575
Coverity 789-790.
Since we've been keeping track of how many bytes we put in the buffer,
use that value instead of calling strlen() find it again.
Also, some white space/indentation cleanup.
svn path=/trunk/; revision=36397
wtap_dump_file_write(). Replace various wrappers around fwrite() with
wtap_dump_file_write(), or at least make the wrappers call
wtap_dump_file_write().
svn path=/trunk/; revision=33116
wtap-int.h, and change the unions of pointers to those private data
structures into just void *'s.
Have the generic wtap close routine free up the private data, rather
than the type-specific close routine, just as the wtap_dumper close
routine does for its private data. Get rid of close routines that don't
do anything any more.
svn path=/trunk/; revision=32015
Also: comment out support for MTP_L2 and SSCOP (encapsulation types
WTAP_ENCAP_MTP2 & WTAP_ENCAP_ATM_PDUS) since I don't know how to
fill in the pseudo_headers required by packet-mtp2 and packet-atm.
svn path=/trunk/; revision=27172
Fixed:
Crash when reading a K12text file with one frame;
Crash after selecting the last frame and then a previous frame
after file open.
Select of frame n (>1) immediately after file open incorrectly
displayed the packet details & data from frame n+1.
File ! Merge (for K12text files) did not work correctly.
Fixes:
Essentially: clear all lexer state (look-ahead buffer, etc)
for every file read. Also: Don't use global for keeping
track of the current file position.
Also: Handle *nix-style line endings as well as DOS-style.
svn path=/trunk/; revision=27158
are expected to return a g_mallocated error string; that's why they fill
in a gchar **, not a const gchar **. g_strdup() the argument to
KERROR(), so it's g_mallocated.
svn path=/trunk/; revision=25398
the types of read and seek_read routines in Wiretap are supposed to be,
and get rid of the casts of pointers to those functions (type problems
should be fixed, not papered over with casts, whenver possible).
svn path=/trunk/; revision=25393
To prevent Windows compiler errors when using flex 2.5.35.
Fixes "missing unistd.h" and yywrap "mismatched parameter" warnings
[Upcoming Part 3: ignore 'signed /unsigned mismatch' errors]
svn path=/trunk/; revision=25173
such as the fact that Flex strips all but the last component of the "-o"
argument, and that it doesn't generate a header file to declare routines
the generated lexical analyzer defines. Use that script when building
lexical analyzers, and, for each lexical analyzer, include the generated
header file in the generated analyzer.
svn path=/trunk/; revision=22446
Move the %options to the beginning if they weren't already there, and
put them in the same order in all files.
Add "prefix=" options to .l files that don't already have them, so we
don't have to pass a "-P" option.
Add "never-interactive" and "noyywrap" options to our lexical analyzers,
to remove extra isatty() checks and to eliminate the need for yywrap()
from the Flex library.
Get rid of %option nostdinit - that's the default.
Add .l.c: rules to Makefile.am files, replacing the rules for specific
.l files. Have those rules all check that $(LEX) is set.
Update the address for the FSF.
svn path=/trunk/; revision=22424
So far I've done only regression testing (the new functionality and what's in wtap-plugins.c has not yet being tested).
it is a first step in the way to have lua opening files.
svn path=/trunk/; revision=21686
Jakub Zawadzki