InfoMagic Source Code 1993 July/THE_SOURCE_CODE_CD_ROM.iso/bsd_srcs/usr.bin/netstat/unix.c

C/C++ Source or Header | 1991-07-01 | 4.5 KB | 144 lines

/*-
 * Copyright (c) 1983, 1988 Regents of the University of California.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *    This product includes software developed by the University of
 *    California, Berkeley and its contributors.
 * 4. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */

#ifndef lint
static char sccsid[] = "@(#)unix.c    5.11 (Berkeley) 7/1/91";
#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
struct uio;
#include <sys/file.h>
struct file *file, *fileNFILE;
int nfile;

int    Aflag;
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;
    }
    if (kvm_read(nfileaddr, (char *)&nfile, sizeof (nfile)) !=
                        sizeof (nfile)) {
        printf("nfile: bad read.\n");
        return;
    }
    if (kvm_read(fileaddr, (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;
    }
    if (kvm_read((off_t)filep, (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;
        if (kvm_read((off_t)fp->f_data, (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;

    if (kvm_read((off_t)so->so_pcb, (char *)unp, sizeof (*unp))
                != sizeof (*unp))
        return;
    if (unp->unp_addr) {
        m = &mbuf;
        if (kvm_read((off_t)unp->unp_addr, (char *)m, sizeof (*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 - sizeof(sa->sun_family),
            sa->sun_path);
    putchar('\n');
}