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david 4519c2ec74 Assert that get_fdinfo doesn't return NULL.
Resolves these Parfait reports
(http://seclists.org/nmap-dev/2012/q4/412).

Error: Null pointer dereference (CWE 476)
    Read from null pointer 'fdn'
         at line 328 of components/nmap/build/amd64/ncat/ncat_core.c in function 'blocking_fdinfo_send'.
           Function 'get_fdinfo' may return constant 'NULL' at line 615, called at line 366 in function 'ncat_broadcast'.
           Constant 'NULL' passed into function 'blocking_fdinfo_send', argument 'fdn', from call at line 367.
           Null pointer introduced at line 615 of components/nmap/build/amd64/ncat/util.c in function 'get_fdinfo'.
         at line 330 of components/nmap/build/amd64/ncat/ncat_core.c in function 'blocking_fdinfo_send'.
           Function 'get_fdinfo' may return constant 'NULL' at line 615, called at line 366 in function 'ncat_broadcast'.
           Constant 'NULL' passed into function 'blocking_fdinfo_send', argument 'fdn', from call at line 367.
           Null pointer introduced at line 615 of components/nmap/build/amd64/ncat/util.c in function 'get_fdinfo'.
Error: Null pointer dereference (CWE 476)
    Read from null pointer 'fdn'
         at line 946 of components/nmap/build/amd64/ncat/ncat_listen.c in function 'shutdown_sockets'.
           Function 'get_fdinfo' may return constant 'NULL' at line 615, called at line 945.
           Null pointer introduced at line 615 of components/nmap/build/amd64/ncat/util.c in function 'get_fdinfo'.
2012-12-22 06:02:30 +00:00
2012-12-20 18:15:59 +00:00
2012-12-16 16:51:47 +00:00
2012-12-11 03:03:18 +00:00
2012-12-17 15:59:35 +00:00
2012-11-06 05:52:40 +00:00
2012-12-06 02:34:28 +00:00
2012-12-06 02:25:46 +00:00
2012-05-27 08:53:32 +00:00
2008-07-31 14:18:21 +00:00
2012-05-27 08:53:32 +00:00
2012-05-27 08:53:32 +00:00
2012-05-27 08:53:32 +00:00
2012-05-27 08:53:32 +00:00
2012-09-15 17:56:17 +00:00
2012-09-15 17:56:17 +00:00

Here is some documentation for Nmap, but these files are much less
comprehensive than what you'll find at the actual Nmap documentation
site ( http://nmap.org ).
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