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routine.
Rename daintree_sna_hex_char() to daintree_sna_process_hex_data() (to
more clearly indicate what it does - it doesn't process a single
character, it processes a whole bunch of them), and have it do some
error checking and fill in the length field in the wtap_pkthdr.
svn path=/trunk/; revision=49356
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wtap_file_read_expected_bytes() from an open routine - open routines are
supposed to return -1 on error, 0 if the file doesn't appear to be a
file of the specified type, or 1 if the file does appear to be a file of
the specified type, but those macros will cause the caller to return
FALSE on errors (so that, even if there's an I/O error, it reports "the
file isn't a file of the specified type" rather than "we got an error
trying to read the file").
When doing reads in an open routine before we've concluded that the file
is probably of the right type, return 0, rather than -1, if we get
WTAP_ERR_SHORT_READ - if we don't have enough data to check whether a
file is of a given type, we should keep trying other types, not give up.
For reads done *after* we've concluded the file is probably of the right
type, if a read doesn't return the number of bytes we asked for, but
returns an error of 0, return WTAP_ERR_SHORT_READ - the file is
apparently cut short.
For NetMon and NetXRay/Windows Sniffer files, use a #define for the
magic number size, and use that for both magic numbers.
svn path=/trunk/; revision=46803
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Use pkthdr instead of pseudo_header as argument for dissecting.
svn path=/trunk/; revision=45601
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svn path=/trunk/; revision=45015
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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
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svn path=/trunk/; revision=42189
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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
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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
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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
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by the gunzipping code. Have it also supply a err_info string, and
report it. Have file_error() supply an err_info string.
Put "the file" - or, for WTAP_ERR_DECOMPRESS, "the compressed file", to
suggest a decompression error - into the rawshark and tshark errors,
along the lines of what other programs print.
Fix a case in the Netscaler code where we weren't fetching the error
code on a read failure.
svn path=/trunk/; revision=36748
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help squelch Coverity CIDs 701-709.
svn path=/trunk/; revision=36511
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length > packet length".
This fix adds back two lines of code removed in SVN #33678.
"Define WTAP_ENCAP_IEEE802_15_4_NOFCS, for use in file formats that don't
include the FCS, and use it for the Daintree SNA file format. [...]"
This fix just restores the discarding of two end-of-frame "pad" bytes as each frame is read
from the capture file; This seems to me to be the correct behaviour.
svn path=/trunk/; revision=33909
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daintree-sna.c doesn't initialise capture_file snapshot_length.
https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=5128
svn path=/trunk/; revision=33904
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include the FCS, and use it for the Daintree SNA file format. While
we're at it, explicitly check to make sure the purported packet length
gives it at least one byte of packet data, and fix some print formats to
use %u for unsigned values.
svn path=/trunk/; revision=33678
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svn path=/trunk/; revision=31173
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[Fix] potential memory problem (crash?) in daintree-sna.
See: https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=4294
(A parameterized version of the patch supplied in the above)
svn path=/trunk/; revision=31172
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svn path=/trunk/; revision=30189
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Added support for Daintree's Sensor Network Analyzer capture files.
svn path=/trunk/; revision=28463
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