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Annotation of 43BSD/ucb/netstat/unix.c, revision 1.1.1.1

1.1       root        1: /*
                      2:  * Copyright (c) 1983 Regents of the University of California.
                      3:  * All rights reserved.  The Berkeley software License Agreement
                      4:  * specifies the terms and conditions for redistribution.
                      5:  */
                      6: 
                      7: #ifndef lint
                      8: static char sccsid[] = "@(#)unix.c     5.3 (Berkeley) 5/8/86";
                      9: #endif not lint
                     10: 
                     11: /*
                     12:  * Display protocol blocks in the unix domain.
                     13:  */
                     14: #include <sys/param.h>
                     15: #include <sys/protosw.h>
                     16: #include <sys/socket.h>
                     17: #include <sys/socketvar.h>
                     18: #include <sys/mbuf.h>
                     19: #include <sys/un.h>
                     20: #include <sys/unpcb.h>
                     21: #define        KERNEL
                     22: #include <sys/file.h>
                     23: 
                     24: int    Aflag;
                     25: int    kmem;
                     26: 
                     27: unixpr(nfileaddr, fileaddr, unixsw)
                     28:        off_t nfileaddr, fileaddr;
                     29:        struct protosw *unixsw;
                     30: {
                     31:        register struct file *fp;
                     32:        struct file *filep;
                     33:        struct socket sock, *so = &sock;
                     34: 
                     35:        if (nfileaddr == 0 || fileaddr == 0) {
                     36:                printf("nfile or file not in namelist.\n");
                     37:                return;
                     38:        }
                     39:        klseek(kmem, nfileaddr, L_SET);
                     40:        if (read(kmem, &nfile, sizeof (nfile)) != sizeof (nfile)) {
                     41:                printf("nfile: bad read.\n");
                     42:                return;
                     43:        }
                     44:        klseek(kmem, fileaddr, L_SET);
                     45:        if (read(kmem, &filep, sizeof (filep)) != sizeof (filep)) {
                     46:                printf("File table address, bad read.\n");
                     47:                return;
                     48:        }
                     49:        file = (struct file *)calloc(nfile, sizeof (struct file));
                     50:        if (file == (struct file *)0) {
                     51:                printf("Out of memory (file table).\n");
                     52:                return;
                     53:        }
                     54:        klseek(kmem, (off_t)filep, L_SET);
                     55:        if (read(kmem, file, nfile * sizeof (struct file)) !=
                     56:            nfile * sizeof (struct file)) {
                     57:                printf("File table read error.\n");
                     58:                return;
                     59:        }
                     60:        fileNFILE = file + nfile;
                     61:        for (fp = file; fp < fileNFILE; fp++) {
                     62:                if (fp->f_count == 0 || fp->f_type != DTYPE_SOCKET)
                     63:                        continue;
                     64:                klseek(kmem, fp->f_data, L_SET);
                     65:                if (read(kmem, so, sizeof (*so)) != sizeof (*so))
                     66:                        continue;
                     67:                /* kludge */
                     68:                if (so->so_proto >= unixsw && so->so_proto <= unixsw + 2)
                     69:                        if (so->so_pcb)
                     70:                                unixdomainpr(so, fp->f_data);
                     71:        }
                     72:        free((char *)file);
                     73: }
                     74: 
                     75: static char *socktype[] =
                     76:     { "#0", "stream", "dgram", "raw", "rdm", "seqpacket" };
                     77: 
                     78: unixdomainpr(so, soaddr)
                     79:        register struct socket *so;
                     80:        caddr_t soaddr;
                     81: {
                     82:        struct unpcb unpcb, *unp = &unpcb;
                     83:        struct mbuf mbuf, *m;
                     84:        struct sockaddr_un *sa;
                     85:        static int first = 1;
                     86: 
                     87:        klseek(kmem, so->so_pcb, L_SET);
                     88:        if (read(kmem, unp, sizeof (*unp)) != sizeof (*unp))
                     89:                return;
                     90:        if (unp->unp_addr) {
                     91:                m = &mbuf;
                     92:                klseek(kmem, unp->unp_addr, L_SET);
                     93:                if (read(kmem, m, sizeof (*m)) != sizeof (*m))
                     94:                        m = (struct mbuf *)0;
                     95:                sa = mtod(m, struct sockaddr_un *);
                     96:        } else
                     97:                m = (struct mbuf *)0;
                     98:        if (first) {
                     99:                printf("Active UNIX domain sockets\n");
                    100:                printf(
                    101: "%-8.8s %-6.6s %-6.6s %-6.6s %8.8s %8.8s %8.8s %8.8s Addr\n",
                    102:                    "Address", "Type", "Recv-Q", "Send-Q",
                    103:                    "Inode", "Conn", "Refs", "Nextref");
                    104:                first = 0;
                    105:        }
                    106:        printf("%8x %-6.6s %6d %6d %8x %8x %8x %8x",
                    107:            soaddr, socktype[so->so_type], so->so_rcv.sb_cc, so->so_snd.sb_cc,
                    108:            unp->unp_inode, unp->unp_conn,
                    109:            unp->unp_refs, unp->unp_nextref);
                    110:        if (m)
                    111:                printf(" %.*s", m->m_len - sizeof(sa->sun_family),
                    112:                    sa->sun_path);
                    113:        putchar('\n');
                    114: }

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