[Ns-bugs] [Bug 329] pcap files generated in native win32 (mingw) are always corrupt

Mon Oct 20 10:39:55 PDT 2008

http://www.nsnam.org/bugzilla/show_bug.cgi?id=329

------- Comment #5 from gjcarneiro at gmail.com  2008-10-20 13:39 -------
>From ascii(7) manpage:

       012   10    0A    LF  ’\n’ (new line)         112   74    4A    J
       013   11    0B    VT  ’\v’ (vertical tab)     113   75    4B    K
       014   12    0C    FF  ’\f’ (form feed)        114   76    4C    L
       015   13    0D    CR  ’\r’ (carriage ret)     115   77    4D    M

So the extra 0x0d's are carriage returns.

I suspect this could be a result of the pcap file being opened in text mode by
default, in particular in PcapWriter::Open.  See
http://www.cplusplus.com/doc/tutorial/files.html

"""
Text file streams are those where we do not include the ios::binary flag in
their opening mode. These files are designed to store text and thus all values
that we input or output from/to them can suffer some formatting
transformations, which do not necessarily correspond to their literal binary
value.
"""

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