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
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
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
more than just dumping, indicate what stuff is used for dumping, and
note that it probably shouldn't be used for that (one should not have to
have a Catapult 2000 input file in order to write a Catapult 2000 output
file).
svn path=/trunk/; revision=30719
threads reading from two different wtap_t's in different threads.
file_externals_table considered unnecessary - a wtap_t has a member
specifically intended to point to private data.
Clean up indentation.
svn path=/trunk/; revision=30707
I was counting the length without the terminating NULL, and didn't want one to be written to the string and copied into the file.
svn path=/trunk/; revision=25383
Its argument, however, needs to be cast to "guchar", so that if the
high-order bit is set, it doesn't get sign-extended.
svn path=/trunk/; revision=22303
Fix compilation failures when building wireshark-0.99.6-SVN-21916 on an
x86_64-unknown-linux-gnu target with gcc version 4.1.2 20070403 (Red Hat
4.1.2-8).
The failures fall into two categories:
(1) Casts between pointers and 32-bit integers without an intermediary cast
via 'long' or 'unsigned long'. This results in a compiler warning complaining
about casts between a pointer and an integer of a different size.
(2) Passing values to "%lld" or similar printf-style format options that the
compiler thinks are a different size. Such values need to be cast to 'long
long' or 'unsigned long long'.
svn path=/trunk/; revision=21975
Guy Harris