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Annotation of 43BSDTahoe/ucb/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
                      6:  * provided that the above copyright notice and this paragraph are
                      7:  * duplicated in all such forms and that any documentation,
                      8:  * advertising materials, and other materials related to such
                      9:  * distribution and use acknowledge that the software was developed
                     10:  * by the University of California, Berkeley.  The name of the
                     11:  * University may not be used to endorse or promote products derived
                     12:  * from this software without specific prior written permission.
                     13:  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
                     14:  * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
                     15:  * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
                     16:  */
                     17: 
                     18: #ifndef lint
                     19: static char sccsid[] = "@(#)unix.c     5.6 (Berkeley) 6/29/88";
                     20: #endif /* not lint */
                     21: 
                     22: /*
                     23:  * Display protocol blocks in the unix domain.
                     24:  */
                     25: #include <sys/param.h>
                     26: #include <sys/protosw.h>
                     27: #include <sys/socket.h>
                     28: #include <sys/socketvar.h>
                     29: #include <sys/mbuf.h>
                     30: #include <sys/un.h>
                     31: #include <sys/unpcb.h>
                     32: #define        KERNEL
                     33: #include <sys/file.h>
                     34: 
                     35: int    Aflag;
                     36: int    kmem;
                     37: extern char *calloc();
                     38: 
                     39: unixpr(nfileaddr, fileaddr, unixsw)
                     40:        off_t nfileaddr, fileaddr;
                     41:        struct protosw *unixsw;
                     42: {
                     43:        register struct file *fp;
                     44:        struct file *filep;
                     45:        struct socket sock, *so = &sock;
                     46: 
                     47:        if (nfileaddr == 0 || fileaddr == 0) {
                     48:                printf("nfile or file not in namelist.\n");
                     49:                return;
                     50:        }
                     51:        klseek(kmem, nfileaddr, L_SET);
                     52:        if (read(kmem, (char *)&nfile, sizeof (nfile)) != sizeof (nfile)) {
                     53:                printf("nfile: bad read.\n");
                     54:                return;
                     55:        }
                     56:        klseek(kmem, fileaddr, L_SET);
                     57:        if (read(kmem, (char *)&filep, sizeof (filep)) != sizeof (filep)) {
                     58:                printf("File table address, bad read.\n");
                     59:                return;
                     60:        }
                     61:        file = (struct file *)calloc(nfile, sizeof (struct file));
                     62:        if (file == (struct file *)0) {
                     63:                printf("Out of memory (file table).\n");
                     64:                return;
                     65:        }
                     66:        klseek(kmem, (off_t)filep, L_SET);
                     67:        if (read(kmem, (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:                klseek(kmem, (off_t)fp->f_data, L_SET);
                     77:                if (read(kmem, (char *)so, sizeof (*so)) != 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:        klseek(kmem, (off_t)so->so_pcb, L_SET);
                    100:        if (read(kmem, (char *)unp, sizeof (*unp)) != sizeof (*unp))
                    101:                return;
                    102:        if (unp->unp_addr) {
                    103:                m = &mbuf;
                    104:                klseek(kmem, (off_t)unp->unp_addr, L_SET);
                    105:                if (read(kmem, (char *)m, sizeof (*m)) != sizeof (*m))
                    106:                        m = (struct mbuf *)0;
                    107:                sa = mtod(m, struct sockaddr_un *);
                    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_inode, 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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