XXXX adding PID information to netstat output

*** 42,51 ****
--- 42,52 ----
  #include <sys/kstat.h>
  #include <sys/uio.h>
  #include <sys/proc.h>
  #include <sys/netstack.h>
  #include <sys/modhash.h>
+ #include <sys/pidnode.h>
  
  #ifdef  __cplusplus
  extern "C" {
  #endif
  
*** 239,248 ****
--- 240,254 ----
          kcondvar_t      sd_qcv;         /* Waiters for qhead to become empty */
          kcondvar_t      sd_zcopy_wait;
          uint_t          sd_copyflag;    /* copy-related flags */
          zoneid_t        sd_anchorzone;  /* Allow removal from same zone only */
          struct msgb     *sd_cmdblk;     /* reply from _I_CMD */
+         /*
+          * pids associated with this stream head.
+          */
+         avl_tree_t      sd_pid_tree;
+         kmutex_t        sd_pid_tree_lock;
  } stdata_t;
  
  /*
   * stdata servicing flags.
   */
*** 1138,1147 ****
--- 1144,1156 ----
      strwakeup_t *, strsigset_t *, strsigset_t *, strpollset_t *);
  extern int getiocseqno(void);
  extern int strwaitbuf(size_t, int);
  extern int strwaitq(stdata_t *, int, ssize_t, int, clock_t, int *);
  extern struct stdata *shalloc(queue_t *);
+ extern void sh_insert_pid(struct stdata *, pid_t);
+ extern void sh_remove_pid(struct stdata *, pid_t);
+ extern mblk_t *sh_get_pid_mblk(struct stdata *);
  extern void shfree(struct stdata *s);
  extern queue_t *allocq(void);
  extern void freeq(queue_t *);
  extern qband_t *allocband(void);
  extern void freeband(qband_t *);