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Annotation of 43BSDReno/usr.bin/netstat/host.c, revision 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[] = "@(#)host.c     5.11 (Berkeley) 6/18/90";
        !            22: #endif /* not lint */
        !            23: 
        !            24: #include <sys/param.h>
        !            25: #include <sys/mbuf.h>
        !            26: #include <sys/socket.h>
        !            27: 
        !            28: #include <net/if.h>
        !            29: 
        !            30: #include <netinet/in.h>
        !            31: #include <netimp/if_imp.h>
        !            32: #include <netimp/if_imphost.h>
        !            33: 
        !            34: extern int kmem;
        !            35: extern         int nflag;
        !            36: extern char *inetname();
        !            37: 
        !            38: /*
        !            39:  * Print the host tables associated with the ARPANET IMP.
        !            40:  * Symbolic addresses are shown unless the nflag is given.
        !            41:  */
        !            42: hostpr(impsoftcaddr, nimpaddr)
        !            43:        off_t impsoftcaddr, nimpaddr;
        !            44: {
        !            45:        struct mbuf *hosts, mb;
        !            46:        struct imp_softc imp_softc;
        !            47:        register struct mbuf *m;
        !            48:        register struct hmbuf *mh;
        !            49:        register struct host *hp;
        !            50:        char flagbuf[10], *flags;
        !            51:        int i, nimp;
        !            52: 
        !            53:        if (impsoftcaddr == 0) {
        !            54:                printf("imp_softc: symbol not in namelist\n");
        !            55:                return;
        !            56:        }
        !            57:        if (nimpaddr == 0) {
        !            58:                printf("nimp: symbol not in namelist\n");
        !            59:                return;
        !            60:        }
        !            61:        kvm_read(nimpaddr, (char *)&nimp, sizeof (nimp));
        !            62:        for (i = 0; i < nimp; i++) {
        !            63:            kvm_read(impsoftcaddr, (char *)&imp_softc, sizeof (imp_softc));
        !            64:            impsoftcaddr += sizeof (imp_softc);
        !            65:            m = imp_softc.imp_hosts;
        !            66:            printf("IMP%d Host Table\n", i);
        !            67:            printf("%-5.5s %-6.6s %-8.8s %-4.4s %-9.9s %-4.4s %s\n", "Flags",
        !            68:                "Host", "Imp", "Qcnt", "Q Address", "RFNM", "Timer");
        !            69:            while (m) {
        !            70:                kvm_read((off_t)m, (char *)&mb, sizeof (mb));
        !            71:                m = &mb;
        !            72:                mh = (struct hmbuf *)(m->m_dat);
        !            73:                if (mh->hm_count == 0) {
        !            74:                        m = m->m_next;
        !            75:                        continue;
        !            76:                }
        !            77:                for (hp = mh->hm_hosts; hp < mh->hm_hosts + HPMBUF; hp++) {
        !            78:                        if ((hp->h_flags&HF_INUSE) == 0 && hp->h_timer == 0)
        !            79:                                continue;
        !            80:                        flags = flagbuf;
        !            81:                        *flags++ = hp->h_flags&HF_INUSE ? 'A' : 'F';
        !            82:                        if (hp->h_flags&HF_DEAD)
        !            83:                                *flags++ = 'D';
        !            84:                        if (hp->h_flags&HF_UNREACH)
        !            85:                                *flags++ = 'U';
        !            86:                        *flags = '\0';
        !            87:                        printf("%-5.5s %-6d %-8d %-4d %-9x %-4d %d\n",
        !            88:                                flagbuf,
        !            89:                                hp->h_host,
        !            90:                                ntohs(hp->h_imp),
        !            91:                                hp->h_qcnt,
        !            92:                                hp->h_q,
        !            93:                                hp->h_rfnm,
        !            94:                                hp->h_timer);
        !            95:                }
        !            96:                m = m->m_next;
        !            97:            }
        !            98:        }
        !            99: }
        !           100: 
        !           101: impstats(impsoftcaddr, nimpaddr)
        !           102:        off_t impsoftcaddr, nimpaddr;
        !           103: {
        !           104:        struct imp_softc imp_softc;
        !           105:        int i, nimp;
        !           106:        extern char *plural();
        !           107: 
        !           108:        if (impsoftcaddr == 0 || nimpaddr == 0)
        !           109:                return;
        !           110:        kvm_read(nimpaddr, (char *)&nimp, sizeof (nimp));
        !           111:        for (i = 0; i < nimp; i++) {
        !           112:                kvm_read(impsoftcaddr, (char *)&imp_softc, sizeof (imp_softc));
        !           113:                impsoftcaddr == sizeof(imp_softc);
        !           114:                printf("imp%d statistics:\n", i);
        !           115: #define        p(f, m)         printf(m, imp_softc.f, plural(imp_softc.f))
        !           116:                p(imp_if.if_ipackets, "\t%u input message%s\n");
        !           117:                p(imp_if.if_opackets, "\t%u output message%s\n");
        !           118:                printf("\t%u times output blocked at least %d sec.\n",
        !           119:                    imp_softc.imp_block, IMP_OTIMER);
        !           120:                p(imp_incomplete, "\t%u \"incomplete\" message%s\n");
        !           121:                p(imp_lostrfnm, "\t%u lost RFNM message%s\n");
        !           122:                p(imp_badrfnm, "\t%u late/bogus RFNM/incomplete message%s\n");
        !           123:                p(imp_garbage, "\t%u unknown message type%s\n");
        !           124:        }
        !           125: }

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