[BUG] incorrect stdout/stdin name

[chriskaliX]

Describe the bug
fd name by d_dname(just like kernel function does). For now, anonymous pipe is an empty string in Hades while it's pipe[xxxx] in Elkeid. This is very important when we deal with some reverse shell things. We should look into how d_name works in kernel.
But for now, we can still detect the socket...

Screenshots
In Hades:

{"timestamp":46709062078800,"cgroupid":4294968932,"pns":4026531836,"type":700,"pid":347526,"tid":347526,"uid":0,"gid":0,"ppid":344736,"sessionid":1796,"comm":"cat","pcomm":"bash","nodename":"localhost","retval":0,"md5":"7e9d213e404ad3bb82e4ebb2e1f2c1b3","username":"root","starttime":1657683598,"exe":"/usr/bin/cat","syscall":"execve","cwd":"/tmp/testspace","tty_name":"pts4","stdin":"TCP","stdout":"","dport":"666","dip":"127.0.0.1","pid_tree":"347526.cat<344736.bash<343802.node<343765.node<343756.sh<343645.bash<343640.bash<343503.sshd","cmdline":"cat","priv_esca":0,"ssh_connection":"xxxx 58446 10.0.4.13 22","ld_preload":"-1"}

In Elkeid:

{
  "bootTime":"2022-01-19 19:11:31.000",
  "cmdline":"cat",
  "cwd":"/",
  "exe":"/usr/bin/cat",
  "fd_num":"1",
  "name":"cat",
  "pid":"12778",
  "ppid":"50250",
  "r_addr_ip":"10.71.5.222",
  "r_addr_port":"666",
  "session":"50250",
  "stderr":"/dev/pts/0",
  "stdin":"socket:[583396364]",
  "stdout":"pipe:[583396365]",
  "terminal":"/pts/0",
  "username":"root"
},