BSD 4_3_Tahoe release

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

/*
* Copyright (c) 1983, 1988 Regents of the University of California.
* All rights reserved.
*
* Redistribution and use in source and binary forms are permitted
* provided that the above copyright notice and this paragraph are
* duplicated in all such forms and that any documentation,
* advertising materials, and other materials related to such
* distribution and use acknowledge that the software was developed
* by the University of California, Berkeley.  The name of the
* University may not be used to endorse or promote products derived
* from this software without specific prior written permission.
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
* WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*/

#ifndef lint
static char sccsid[] = "@(#)unix.c      5.6 (Berkeley) 6/29/88";
#endif /* not lint */

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

int     Aflag;
int     kmem;
extern  char *calloc();

unixpr(nfileaddr, fileaddr, unixsw)
       off_t nfileaddr, fileaddr;
       struct protosw *unixsw;
{
       register struct file *fp;
       struct file *filep;
       struct socket sock, *so = &sock;

       if (nfileaddr == 0 || fileaddr == 0) {
               printf("nfile or file not in namelist.\n");
               return;
       }
       klseek(kmem, nfileaddr, L_SET);
       if (read(kmem, (char *)&nfile, sizeof (nfile)) != sizeof (nfile)) {
               printf("nfile: bad read.\n");
               return;
       }
       klseek(kmem, fileaddr, L_SET);
       if (read(kmem, (char *)&filep, sizeof (filep)) != sizeof (filep)) {
               printf("File table address, bad read.\n");
               return;
       }
       file = (struct file *)calloc(nfile, sizeof (struct file));
       if (file == (struct file *)0) {
               printf("Out of memory (file table).\n");
               return;
       }
       klseek(kmem, (off_t)filep, L_SET);
       if (read(kmem, (char *)file, nfile * sizeof (struct file)) !=
           nfile * sizeof (struct file)) {
               printf("File table read error.\n");
               return;
       }
       fileNFILE = file + nfile;
       for (fp = file; fp < fileNFILE; fp++) {
               if (fp->f_count == 0 || fp->f_type != DTYPE_SOCKET)
                       continue;
               klseek(kmem, (off_t)fp->f_data, L_SET);
               if (read(kmem, (char *)so, sizeof (*so)) != sizeof (*so))
                       continue;
               /* kludge */
               if (so->so_proto >= unixsw && so->so_proto <= unixsw + 2)
                       if (so->so_pcb)
                               unixdomainpr(so, fp->f_data);
       }
       free((char *)file);
}

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

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;

       klseek(kmem, (off_t)so->so_pcb, L_SET);
       if (read(kmem, (char *)unp, sizeof (*unp)) != sizeof (*unp))
               return;
       if (unp->unp_addr) {
               m = &mbuf;
               klseek(kmem, (off_t)unp->unp_addr, L_SET);
               if (read(kmem, (char *)m, sizeof (*m)) != sizeof (*m))
                       m = (struct mbuf *)0;
               sa = mtod(m, struct sockaddr_un *);
       } 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_inode, unp->unp_conn,
           unp->unp_refs, unp->unp_nextref);
       if (m)
               printf(" %.*s", m->m_len - sizeof(sa->sun_family),
                   sa->sun_path);
       putchar('\n');
}