Know about MT_IFADDR mbufs. Also, be more graceful if there

[unix-history] / usr / src / usr.bin / netstat / mbuf.c

diff --git a/usr/src/usr.bin/netstat/mbuf.c b/usr/src/usr.bin/netstat/mbuf.c
index c037804..d1b84c8 100644 (file)
--- a/usr/src/usr.bin/netstat/mbuf.c
+++ b/usr/src/usr.bin/netstat/mbuf.c
@@ -1,9 +1,12 @@
 #ifndef lint
 #ifndef lint

-static char sccsid[] = "@(#)mbuf.c     4.5 82/12/18";
+static char sccsid[] = "@(#)mbuf.c     4.8 85/04/07";

 #endif
 
 #endif
 

+#include <stdio.h>

 #include <sys/param.h>
 #include <sys/mbuf.h>
 #include <sys/param.h>
 #include <sys/mbuf.h>

+#define        YES     1
+typedef int bool;

 
 struct mbstat mbstat;
 extern int kmem;
 
 struct mbstat mbstat;
 extern int kmem;


@@ -18,16 +21,19 @@ static struct mbtypes {
        { MT_PCB,       "protocol control blocks" },
        { MT_RTABLE,    "routing table entries" },
        { MT_HTABLE,    "IMP host table entries" },
        { MT_PCB,       "protocol control blocks" },
        { MT_RTABLE,    "routing table entries" },
        { MT_HTABLE,    "IMP host table entries" },

-#ifdef notdef

        { MT_ATABLE,    "address resolution tables" },
        { MT_ATABLE,    "address resolution tables" },

-#endif

        { MT_FTABLE,    "fragment reassembly queue headers" },
        { MT_SONAME,    "socket names and addresses" },
        { MT_ZOMBIE,    "zombie process information" },
        { MT_SOOPTS,    "socket options" },
        { MT_FTABLE,    "fragment reassembly queue headers" },
        { MT_SONAME,    "socket names and addresses" },
        { MT_ZOMBIE,    "zombie process information" },
        { MT_SOOPTS,    "socket options" },

+       { MT_RIGHTS,    "access rights" },
+       { MT_IFADDR,    "interface addresses" }, 

        { 0, 0 }
 };
 
        { 0, 0 }
 };
 

+int nmbtypes = sizeof(mbstat.m_mtypes) / sizeof(short);
+bool seen[256];                        /* "have we seen this type yet?" */
+

 /*
  * Print mbuf statistics.
  */
 /*
  * Print mbuf statistics.
  */


@@ -35,8 +41,13 @@ mbpr(mbaddr)
        off_t mbaddr;
 {
        register int totmem, totfree, totmbufs;
        off_t mbaddr;
 {
        register int totmem, totfree, totmbufs;

+       register int i;

        register struct mbtypes *mp;
 
        register struct mbtypes *mp;
 

+       if (nmbtypes != 256) {
+               fprintf(stderr, "unexpected change to mbstat; check source\n");
+               return;
+       }

        if (mbaddr == 0) {
                printf("mbstat: symbol not in namelist\n");
                return;
        if (mbaddr == 0) {
                printf("mbstat: symbol not in namelist\n");
                return;


@@ -47,21 +58,29 @@ mbpr(mbaddr)
                return;
        }
        printf("%d/%d mbufs in use:\n",
                return;
        }
        printf("%d/%d mbufs in use:\n",

-               mbstat.m_mbufs - mbstat.m_mbfree, mbstat.m_mbufs);
+               mbstat.m_mbufs - mbstat.m_mtypes[MT_FREE], mbstat.m_mbufs);

        totmbufs = 0;
        for (mp = mbtypes; mp->mt_name; mp++)
                if (mbstat.m_mtypes[mp->mt_type]) {
        totmbufs = 0;
        for (mp = mbtypes; mp->mt_name; mp++)
                if (mbstat.m_mtypes[mp->mt_type]) {

+                       seen[mp->mt_type] = YES;

                        printf("\t%d mbufs allocated to %s\n",
                        printf("\t%d mbufs allocated to %s\n",

-                               mbstat.m_mtypes[mp->mt_type], mp->mt_name);
+                           mbstat.m_mtypes[mp->mt_type], mp->mt_name);

                        totmbufs += mbstat.m_mtypes[mp->mt_type];
                }
                        totmbufs += mbstat.m_mtypes[mp->mt_type];
                }

-       if (totmbufs != mbstat.m_mbufs - mbstat.m_mbfree)
+       seen[MT_FREE] = YES;
+       for (i = 0; i < nmbtypes; i++)
+               if (!seen[i] && mbstat.m_mtypes[i]) {
+                       printf("\t%d mbufs allocated to <mbuf type %d>\n",
+                           mbstat.m_mtypes[i], i);
+                       totmbufs += mbstat.m_mtypes[i];
+               }
+       if (totmbufs != mbstat.m_mbufs - mbstat.m_mtypes[MT_FREE])

                printf("*** %d mbufs missing ***\n",
                printf("*** %d mbufs missing ***\n",

-                       (mbstat.m_mbufs - mbstat.m_mbfree) - totmbufs);
+                       (mbstat.m_mbufs - mbstat.m_mtypes[MT_FREE]) - totmbufs);

        printf("%d/%d mapped pages in use\n",
                mbstat.m_clusters - mbstat.m_clfree, mbstat.m_clusters);
        totmem = mbstat.m_mbufs * MSIZE + mbstat.m_clusters * CLBYTES;
        printf("%d/%d mapped pages in use\n",
                mbstat.m_clusters - mbstat.m_clfree, mbstat.m_clusters);
        totmem = mbstat.m_mbufs * MSIZE + mbstat.m_clusters * CLBYTES;

-       totfree = mbstat.m_mbfree * MSIZE + mbstat.m_clusters * CLBYTES;
+       totfree = mbstat.m_mtypes[MT_FREE]*MSIZE + mbstat.m_clfree * CLBYTES;

        printf("%d Kbytes allocated to network (%d%% in use)\n",
                totmem / 1024, (totmem - totfree) * 100 / totmem);
        printf("%d requests for memory denied\n", mbstat.m_drops);
        printf("%d Kbytes allocated to network (%d%% in use)\n",
                totmem / 1024, (totmem - totfree) * 100 / totmem);
        printf("%d requests for memory denied\n", mbstat.m_drops);