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Annotation of 43BSDReno/usr.bin/netstat/unix.c, revision 1.1.1.1

1.1       root        1: /*-
                      2:  * Copyright (c) 1983, 1988 Regents of the University of California.
                      3:  * All rights reserved.
                      4:  *
                      5:  * Redistribution and use in source and binary forms are permitted provided
                      6:  * that: (1) source distributions retain this entire copyright notice and
                      7:  * comment, and (2) distributions including binaries display the following
                      8:  * acknowledgement:  ``This product includes software developed by the
                      9:  * University of California, Berkeley and its contributors'' in the
                     10:  * documentation or other materials provided with the distribution and in
                     11:  * all advertising materials mentioning features or use of this software.
                     12:  * Neither the name of the University nor the names of its contributors may
                     13:  * be used to endorse or promote products derived from this software without
                     14:  * specific prior written permission.
                     15:  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
                     16:  * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
                     17:  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
                     18:  */
                     19: 
                     20: #ifndef lint
                     21: static char sccsid[] = "@(#)unix.c     5.9 (Berkeley) 6/18/90";
                     22: #endif /* not lint */
                     23: 
                     24: /*
                     25:  * Display protocol blocks in the unix domain.
                     26:  */
                     27: #include <sys/param.h>
                     28: #include <sys/protosw.h>
                     29: #include <sys/socket.h>
                     30: #include <sys/socketvar.h>
                     31: #include <sys/mbuf.h>
                     32: #include <sys/un.h>
                     33: #include <sys/unpcb.h>
                     34: #define        KERNEL
                     35: #include <sys/file.h>
                     36: 
                     37: int    Aflag;
                     38: extern char *calloc();
                     39: 
                     40: unixpr(nfileaddr, fileaddr, unixsw)
                     41:        off_t nfileaddr, fileaddr;
                     42:        struct protosw *unixsw;
                     43: {
                     44:        register struct file *fp;
                     45:        struct file *filep;
                     46:        struct socket sock, *so = &sock;
                     47: 
                     48:        if (nfileaddr == 0 || fileaddr == 0) {
                     49:                printf("nfile or file not in namelist.\n");
                     50:                return;
                     51:        }
                     52:        if (kvm_read(nfileaddr, (char *)&nfile, sizeof (nfile)) !=
                     53:                                                sizeof (nfile)) {
                     54:                printf("nfile: bad read.\n");
                     55:                return;
                     56:        }
                     57:        if (kvm_read(fileaddr, (char *)&filep, sizeof (filep))
                     58:                                                != sizeof (filep)) {
                     59:                printf("File table address, bad read.\n");
                     60:                return;
                     61:        }
                     62:        file = (struct file *)calloc(nfile, sizeof (struct file));
                     63:        if (file == (struct file *)0) {
                     64:                printf("Out of memory (file table).\n");
                     65:                return;
                     66:        }
                     67:        if (kvm_read((off_t)filep, (char *)file, nfile * sizeof (struct file))
                     68:                                        != nfile * sizeof (struct file)) {
                     69:                printf("File table read error.\n");
                     70:                return;
                     71:        }
                     72:        fileNFILE = file + nfile;
                     73:        for (fp = file; fp < fileNFILE; fp++) {
                     74:                if (fp->f_count == 0 || fp->f_type != DTYPE_SOCKET)
                     75:                        continue;
                     76:                if (kvm_read((off_t)fp->f_data, (char *)so, sizeof (*so))
                     77:                                        != sizeof (*so))
                     78:                        continue;
                     79:                /* kludge */
                     80:                if (so->so_proto >= unixsw && so->so_proto <= unixsw + 2)
                     81:                        if (so->so_pcb)
                     82:                                unixdomainpr(so, fp->f_data);
                     83:        }
                     84:        free((char *)file);
                     85: }
                     86: 
                     87: static char *socktype[] =
                     88:     { "#0", "stream", "dgram", "raw", "rdm", "seqpacket" };
                     89: 
                     90: unixdomainpr(so, soaddr)
                     91:        register struct socket *so;
                     92:        caddr_t soaddr;
                     93: {
                     94:        struct unpcb unpcb, *unp = &unpcb;
                     95:        struct mbuf mbuf, *m;
                     96:        struct sockaddr_un *sa;
                     97:        static int first = 1;
                     98: 
                     99:        if (kvm_read((off_t)so->so_pcb, (char *)unp, sizeof (*unp))
                    100:                                != sizeof (*unp))
                    101:                return;
                    102:        if (unp->unp_addr) {
                    103:                m = &mbuf;
                    104:                if (kvm_read((off_t)unp->unp_addr, (char *)m, sizeof (*m))
                    105:                                != sizeof (*m))
                    106:                        m = (struct mbuf *)0;
                    107:                sa = (struct sockaddr_un *)(m->m_dat);
                    108:        } else
                    109:                m = (struct mbuf *)0;
                    110:        if (first) {
                    111:                printf("Active UNIX domain sockets\n");
                    112:                printf(
                    113: "%-8.8s %-6.6s %-6.6s %-6.6s %8.8s %8.8s %8.8s %8.8s Addr\n",
                    114:                    "Address", "Type", "Recv-Q", "Send-Q",
                    115:                    "Inode", "Conn", "Refs", "Nextref");
                    116:                first = 0;
                    117:        }
                    118:        printf("%8x %-6.6s %6d %6d %8x %8x %8x %8x",
                    119:            soaddr, socktype[so->so_type], so->so_rcv.sb_cc, so->so_snd.sb_cc,
                    120:            unp->unp_vnode, unp->unp_conn,
                    121:            unp->unp_refs, unp->unp_nextref);
                    122:        if (m)
                    123:                printf(" %.*s", m->m_len - sizeof(sa->sun_family),
                    124:                    sa->sun_path);
                    125:        putchar('\n');
                    126: }

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