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nmap/ncat
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
..
2012-12-22 06:02:25 +00:00