not every value return in an nlist structure was being

[unix-history] / usr / src / usr.bin / netstat / unix.c

/*-
* Copyright (c) 1983, 1988 Regents of the University of California.
* All rights reserved.
*
* %sccs.include.redist.c%
*/

#ifndef lint
static char sccsid[] = "@(#)unix.c      5.14 (Berkeley) %G%";
#endif /* not lint */

/*
* Display protocol blocks in the unix domain.
*/
#include <kvm.h>
#include <sys/param.h>
#include <sys/protosw.h>
#include <sys/socket.h>
#include <sys/socketvar.h>
#include <sys/mbuf.h>
#include <sys/kinfo.h>
#include <sys/un.h>
#include <sys/unpcb.h>
#define KERNEL
struct uio;
struct proc;
#include <sys/file.h>

#include <netinet/in.h>

#include <stdio.h>
#include <stdlib.h>
#include "netstat.h"

static  void unixdomainpr __P((struct socket *, caddr_t));

struct  file *file, *fileNFILE;
int     nfiles;
extern  kvm_t *kvmd;

void
unixpr(off)
       u_long  off;
{
       register struct file *fp;
       struct socket sock, *so = &sock;
       char *filebuf;
       struct protosw *unixsw = (struct protosw *)off;

       filebuf = (char *)kvm_getfiles(kvmd, KINFO_FILE, 0, &nfiles);
       if (filebuf == 0) {
               printf("Out of memory (file table).\n");
               return;
       }
       file = (struct file *)(filebuf + sizeof(fp));
       fileNFILE = file + nfiles;
       for (fp = file; fp < fileNFILE; fp++) {
               if (fp->f_count == 0 || fp->f_type != DTYPE_SOCKET)
                       continue;
               if (kread((u_long)fp->f_data, (char *)so, sizeof (*so)))
                       continue;
               /* kludge */
               if (so->so_proto >= unixsw && so->so_proto <= unixsw + 2)
                       if (so->so_pcb)
                               unixdomainpr(so, fp->f_data);
       }
}

static  char *socktype[] =
   { "#0", "stream", "dgram", "raw", "rdm", "seqpacket" };

static void
unixdomainpr(so, soaddr)
       register struct socket *so;
       caddr_t soaddr;
{
       struct unpcb unpcb, *unp = &unpcb;
       struct mbuf mbuf, *m;
       struct sockaddr_un *sa;
       static int first = 1;

       if (kread((u_long)so->so_pcb, (char *)unp, sizeof (*unp)))
               return;
       if (unp->unp_addr) {
               m = &mbuf;
               if (kread((u_long)unp->unp_addr, (char *)m, sizeof (*m)))
                       m = (struct mbuf *)0;
               sa = (struct sockaddr_un *)(m->m_dat);
       } else
               m = (struct mbuf *)0;
       if (first) {
               printf("Active UNIX domain sockets\n");
               printf(
"%-8.8s %-6.6s %-6.6s %-6.6s %8.8s %8.8s %8.8s %8.8s Addr\n",
                   "Address", "Type", "Recv-Q", "Send-Q",
                   "Inode", "Conn", "Refs", "Nextref");
               first = 0;
       }
       printf("%8x %-6.6s %6d %6d %8x %8x %8x %8x",
           soaddr, socktype[so->so_type], so->so_rcv.sb_cc, so->so_snd.sb_cc,
           unp->unp_vnode, unp->unp_conn,
           unp->unp_refs, unp->unp_nextref);
       if (m)
               printf(" %.*s", m->m_len - (int)sizeof(sa->sun_family),
                   sa->sun_path);
       putchar('\n');
}