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8d124fec07
freebsd-skq/usr.sbin/pstat/pstat.c
dg c9410919df "Fixed" pstat -T by avoiding the vnode stats. Disabled pstat -v since 
we no longer support that sysctl (in my opinion, pstat -v is a security
hole in any case).
1997-10-19 18:41:23 +00:00

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/*-
* Copyright (c) 1980, 1991, 1993, 1994
* The Regents of the University of California. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifndef lint
static const char copyright[] =
"@(#) Copyright (c) 1980, 1991, 1993, 1994\n\
The Regents of the University of California. All rights reserved.\n";
#endif /* not lint */
#ifndef lint
#if 0
static char sccsid[] = "@(#)pstat.c 8.16 (Berkeley) 5/9/95";
#endif
static const char rcsid[] =
"$Id: pstat.c,v 1.31 1997/10/09 07:22:08 charnier Exp $";
#endif /* not lint */
#include <sys/param.h>
#include <sys/time.h>
#include <sys/vnode.h>
#include <sys/ucred.h>
#define KERNEL
#include <sys/file.h>
#include <ufs/ufs/quota.h>
#include <ufs/ufs/inode.h>
#include <sys/mount.h>
#include <sys/uio.h>
#include <sys/namei.h>
#include <miscfs/union/union.h>
#undef KERNEL
#include <sys/stat.h>
#include <nfs/rpcv2.h>
#include <nfs/nfsproto.h>
#include <nfs/nfs.h>
#include <nfs/nfsnode.h>
#include <sys/ioctl.h>
#include <sys/ioctl_compat.h> /* XXX NTTYDISC is too well hidden */
#include <sys/tty.h>
#include <sys/conf.h>
#include <sys/rlist.h>
#include <sys/user.h>
#include <sys/sysctl.h>
#include <err.h>
#include <fcntl.h>
#include <kvm.h>
#include <limits.h>
#include <nlist.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
struct nlist nl[] = {
#define VM_SWAPLIST 0
{ "_swaplist" },/* list of free swap areas */
#define VM_SWDEVT 1
{ "_swdevt" }, /* list of swap devices and sizes */
#define VM_NSWAP 2
{ "_nswap" }, /* size of largest swap device */
#define VM_NSWDEV 3
{ "_nswdev" }, /* number of swap devices */
#define VM_DMMAX 4
{ "_dmmax" }, /* maximum size of a swap block */
#define V_MOUNTLIST 5
{ "_mountlist" }, /* address of head of mount list. */
#define V_NUMV 6
{ "_numvnodes" },
#define FNL_NFILE 7
{"_nfiles"},
#define FNL_MAXFILE 8
{"_maxfiles"},
#define NLMANDATORY FNL_MAXFILE /* names up to here are mandatory */
#define SCONS NLMANDATORY + 1
{ "_cons" },
#define SPTY NLMANDATORY + 2
{ "_pt_tty" },
#define SNPTY NLMANDATORY + 3
{ "_npty" },
#ifdef hp300
#define SDCA (SNPTY+1)
{ "_dca_tty" },
#define SNDCA (SNPTY+2)
{ "_ndca" },
#define SDCM (SNPTY+3)
{ "_dcm_tty" },
#define SNDCM (SNPTY+4)
{ "_ndcm" },
#define SDCL (SNPTY+5)
{ "_dcl_tty" },
#define SNDCL (SNPTY+6)
{ "_ndcl" },
#define SITE (SNPTY+7)
{ "_ite_tty" },
#define SNITE (SNPTY+8)
{ "_nite" },
#endif
#ifdef mips
#define SDC (SNPTY+1)
{ "_dc_tty" },
#define SNDC (SNPTY+2)
{ "_dc_cnt" },
#endif
#ifdef __FreeBSD__
#define SCCONS (SNPTY+1)
{ "_sccons" },
#define NSCCONS (SNPTY+2)
{ "_nsccons" },
#define SIO (SNPTY+3)
{ "_sio_tty" },
#define NSIO (SNPTY+4)
{ "_nsio_tty" },
#define RC (SNPTY+5)
{ "_rc_tty" },
#define NRC (SNPTY+6)
{ "_nrc_tty" },
#define CY (SNPTY+7)
{ "_cy_tty" },
#define NCY (SNPTY+8)
{ "_ncy_tty" },
#define SI (SNPTY+9)
{ "_si_tty" },
#define NSI (SNPTY+10)
{ "_si_Nports" },
#endif
{ "" }
};
int usenumflag;
int totalflag;
char *nlistf = NULL;
char *memf = NULL;
kvm_t *kd;
char *usagestr;
struct {
int m_flag;
const char *m_name;
} mnt_flags[] = {
{ MNT_RDONLY, "rdonly" },
{ MNT_SYNCHRONOUS, "sync" },
{ MNT_NOEXEC, "noexec" },
{ MNT_NOSUID, "nosuid" },
{ MNT_NODEV, "nodev" },
{ MNT_UNION, "union" },
{ MNT_ASYNC, "async" },
{ MNT_NOATIME, "noatime" },
{ MNT_EXRDONLY, "exrdonly" },
{ MNT_EXPORTED, "exported" },
{ MNT_DEFEXPORTED, "defexported" },
{ MNT_EXPORTANON, "exportanon" },
{ MNT_EXKERB, "exkerb" },
{ MNT_LOCAL, "local" },
{ MNT_QUOTA, "quota" },
{ MNT_ROOTFS, "rootfs" },
{ MNT_USER, "user" },
{ MNT_UPDATE, "update" },
{ MNT_DELEXPORT },
{ MNT_UPDATE, "update" },
{ MNT_DELEXPORT, "delexport" },
{ MNT_RELOAD, "reload" },
{ MNT_FORCE, "force" },
{ MNT_UNMOUNT, "unmount" },
{ MNT_MWAIT, "mwait" },
{ MNT_WANTRDWR, "wantrdwr" },
{ 0 }
};
#define SVAR(var) __STRING(var) /* to force expansion */
#define KGET(idx, var) \
KGET1(idx, &var, sizeof(var), SVAR(var))
#define KGET1(idx, p, s, msg) \
KGET2(nl[idx].n_value, p, s, msg)
#define KGET2(addr, p, s, msg) \
if (kvm_read(kd, (u_long)(addr), p, s) != s) \
warnx("cannot read %s: %s", msg, kvm_geterr(kd))
#define KGETRET(addr, p, s, msg) \
if (kvm_read(kd, (u_long)(addr), p, s) != s) { \
warnx("cannot read %s: %s", msg, kvm_geterr(kd)); \
return (0); \
}
void filemode __P((void));
int getfiles __P((char **, int *));
struct mount *
getmnt __P((struct mount *));
struct e_vnode *
kinfo_vnodes __P((int *));
struct e_vnode *
loadvnodes __P((int *));
void mount_print __P((struct mount *));
void nfs_header __P((void));
int nfs_print __P((struct vnode *));
void swapmode __P((void));
void ttymode __P((void));
void ttyprt __P((struct tty *, int));
void ttytype __P((struct tty *, char *, int, int, int));
void ufs_header __P((void));
int ufs_print __P((struct vnode *));
void union_header __P((void));
int union_print __P((struct vnode *));
static void usage __P((void));
void vnode_header __P((void));
void vnode_print __P((struct vnode *, struct vnode *));
void vnodemode __P((void));
int
main(argc, argv)
int argc;
char *argv[];
{
int ch, i, quit, ret;
int fileflag, swapflag, ttyflag, vnodeflag;
char buf[_POSIX2_LINE_MAX],*opts;
fileflag = swapflag = ttyflag = vnodeflag = 0;
/* We will behave like good old swapinfo if thus invoked */
opts = strrchr(argv[0],'/');
if (opts)
opts++;
else
opts = argv[0];
if (!strcmp(opts,"swapinfo")) {
swapflag = 1;
opts = "kM:N:";
usagestr = "swapinfo [-k] [-M core] [-N system]";
} else {
opts = "TM:N:fiknstv";
usagestr = "pstat [-Tfknstv] [-M core] [-N system]";
}
while ((ch = getopt(argc, argv, opts)) != -1)
switch (ch) {
case 'f':
fileflag = 1;
break;
case 'k':
putenv("BLOCKSIZE=1K");
break;
case 'M':
memf = optarg;
break;
case 'N':
nlistf = optarg;
break;
case 'n':
usenumflag = 1;
break;
case 's':
swapflag = 1;
break;
case 'T':
totalflag = 1;
break;
case 't':
ttyflag = 1;
break;
case 'v':
case 'i': /* Backward compatibility. */
fprintf(stderr, "vnode mode not supported\n");
exit(1);
#if 0
vnodeflag = 1;
break;
#endif
default:
usage();
}
argc -= optind;
argv += optind;
/*
* Discard setgid privileges if not the running kernel so that bad
* guys can't print interesting stuff from kernel memory.
*/
if (nlistf != NULL || memf != NULL)
(void)setgid(getgid());
if ((kd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY, buf)) == 0)
errx(1, "kvm_openfiles: %s", buf);
if ((ret = kvm_nlist(kd, nl)) != 0) {
if (ret == -1)
errx(1, "kvm_nlist: %s", kvm_geterr(kd));
for (i = quit = 0; i <= NLMANDATORY; i++)
if (!nl[i].n_value) {
quit = 1;
warnx("undefined symbol: %s", nl[i].n_name);
}
if (quit)
exit(1);
}
if (!(fileflag | vnodeflag | ttyflag | swapflag | totalflag))
usage();
if (fileflag || totalflag)
filemode();
if (vnodeflag)
vnodemode();
if (ttyflag)
ttymode();
if (swapflag || totalflag)
swapmode();
exit (0);
}
static void
usage()
{
fprintf(stderr, "usage: %s\n", usagestr);
exit (1);
}
struct e_vnode {
struct vnode *avnode;
struct vnode vnode;
};
void
vnodemode()
{
struct e_vnode *e_vnodebase, *endvnode, *evp;
struct vnode *vp;
struct mount *maddr, *mp;
int numvnodes;
e_vnodebase = loadvnodes(&numvnodes);
if (totalflag) {
(void)printf("%7d vnodes\n", numvnodes);
return;
}
endvnode = e_vnodebase + numvnodes;
(void)printf("%d active vnodes\n", numvnodes);
#define ST mp->mnt_stat
maddr = NULL;
for (evp = e_vnodebase; evp < endvnode; evp++) {
vp = &evp->vnode;
if (vp->v_mount != maddr) {
/*
* New filesystem
*/
if ((mp = getmnt(vp->v_mount)) == NULL)
continue;
maddr = vp->v_mount;
mount_print(mp);
vnode_header();
if (!strcmp(ST.f_fstypename, "ufs") ||
!strcmp(ST.f_fstypename, "mfs"))
ufs_header();
else if (!strcmp(ST.f_fstypename, "nfs"))
nfs_header();
else if (!strcmp(ST.f_fstypename, "union"))
union_header();
(void)printf("\n");
}
vnode_print(evp->avnode, vp);
if (!strcmp(ST.f_fstypename, "ufs") ||
!strcmp(ST.f_fstypename, "mfs"))
ufs_print(vp);
else if (!strcmp(ST.f_fstypename, "nfs"))
nfs_print(vp);
else if (!strcmp(ST.f_fstypename, "union"))
union_print(vp);
(void)printf("\n");
}
free(e_vnodebase);
}
void
vnode_header()
{
(void)printf("ADDR TYP VFLAG USE HOLD");
}
void
vnode_print(avnode, vp)
struct vnode *avnode;
struct vnode *vp;
{
char *type, flags[16];
char *fp = flags;
int flag;
/*
* set type
*/
switch (vp->v_type) {
case VNON:
type = "non"; break;
case VREG:
type = "reg"; break;
case VDIR:
type = "dir"; break;
case VBLK:
type = "blk"; break;
case VCHR:
type = "chr"; break;
case VLNK:
type = "lnk"; break;
case VSOCK:
type = "soc"; break;
case VFIFO:
type = "fif"; break;
case VBAD:
type = "bad"; break;
default:
type = "unk"; break;
}
/*
* gather flags
*/
flag = vp->v_flag;
if (flag & VROOT)
*fp++ = 'R';
if (flag & VTEXT)
*fp++ = 'T';
if (flag & VSYSTEM)
*fp++ = 'S';
if (flag & VISTTY)
*fp++ = 't';
if (flag & VXLOCK)
*fp++ = 'L';
if (flag & VXWANT)
*fp++ = 'W';
if (flag & VBWAIT)
*fp++ = 'B';
if (flag & VALIASED)
*fp++ = 'A';
if (flag & VVMIO)
*fp++ = 'V';
if (flag & VAGE)
*fp++ = 'a';
if (flag & VOLOCK)
*fp++ = 'l';
if (flag & VOWANT)
*fp++ = 'w';
if (flag == 0)
*fp++ = '-';
*fp = '\0';
(void)printf("%8x %s %5s %4d %4d",
avnode, type, flags, vp->v_usecount, vp->v_holdcnt);
}
void
ufs_header()
{
(void)printf(" FILEID IFLAG RDEV|SZ");
}
int
ufs_print(vp)
struct vnode *vp;
{
int flag;
struct inode inode, *ip = &inode;
char flagbuf[16], *flags = flagbuf;
char *name;
mode_t type;
KGETRET(VTOI(vp), &inode, sizeof(struct inode), "vnode's inode");
flag = ip->i_flag;
if (flag & IN_RENAME)
*flags++ = 'R';
if (flag & IN_UPDATE)
*flags++ = 'U';
if (flag & IN_ACCESS)
*flags++ = 'A';
if (flag & IN_CHANGE)
*flags++ = 'C';
if (flag & IN_MODIFIED)
*flags++ = 'M';
if (flag & IN_SHLOCK)
*flags++ = 'S';
if (flag & IN_EXLOCK)
*flags++ = 'E';
if (flag == 0)
*flags++ = '-';
*flags = '\0';
(void)printf(" %6d %5s", ip->i_number, flagbuf);
type = ip->i_mode & S_IFMT;
if (S_ISCHR(ip->i_mode) || S_ISBLK(ip->i_mode))
if (usenumflag || ((name = devname(ip->i_rdev, type)) == NULL))
(void)printf(" %2d,%-2d",
major(ip->i_rdev), minor(ip->i_rdev));
else
(void)printf(" %7s", name);
else
(void)printf(" %7qd", ip->i_size);
return (0);
}
void
nfs_header()
{
(void)printf(" FILEID NFLAG RDEV|SZ");
}
int
nfs_print(vp)
struct vnode *vp;
{
struct nfsnode nfsnode, *np = &nfsnode;
char flagbuf[16], *flags = flagbuf;
int flag;
char *name;
mode_t type;
KGETRET(VTONFS(vp), &nfsnode, sizeof(nfsnode), "vnode's nfsnode");
flag = np->n_flag;
if (flag & NFLUSHWANT)
*flags++ = 'W';
if (flag & NFLUSHINPROG)
*flags++ = 'P';
if (flag & NMODIFIED)
*flags++ = 'M';
if (flag & NWRITEERR)
*flags++ = 'E';
if (flag & NQNFSNONCACHE)
*flags++ = 'X';
if (flag & NQNFSWRITE)
*flags++ = 'O';
if (flag & NQNFSEVICTED)
*flags++ = 'G';
if (flag == 0)
*flags++ = '-';
*flags = '\0';
#define VT np->n_vattr
(void)printf(" %6d %5s", VT.va_fileid, flagbuf);
type = VT.va_mode & S_IFMT;
if (S_ISCHR(VT.va_mode) || S_ISBLK(VT.va_mode))
if (usenumflag || ((name = devname(VT.va_rdev, type)) == NULL))
(void)printf(" %2d,%-2d",
major(VT.va_rdev), minor(VT.va_rdev));
else
(void)printf(" %7s", name);
else
(void)printf(" %7qd", np->n_size);
return (0);
}
void
union_header()
{
(void)printf(" UPPER LOWER");
}
int
union_print(vp)
struct vnode *vp;
{
struct union_node unode, *up = &unode;
KGETRET(VTOUNION(vp), &unode, sizeof(unode), "vnode's unode");
(void)printf(" %8x %8x", up->un_uppervp, up->un_lowervp);
return (0);
}
/*
* Given a pointer to a mount structure in kernel space,
* read it in and return a usable pointer to it.
*/
struct mount *
getmnt(maddr)
struct mount *maddr;
{
static struct mtab {
struct mtab *next;
struct mount *maddr;
struct mount mount;
} *mhead = NULL;
struct mtab *mt;
for (mt = mhead; mt != NULL; mt = mt->next)
if (maddr == mt->maddr)
return (&mt->mount);
if ((mt = malloc(sizeof(struct mtab))) == NULL)
errx(1, "malloc");
KGETRET(maddr, &mt->mount, sizeof(struct mount), "mount table");
mt->maddr = maddr;
mt->next = mhead;
mhead = mt;
return (&mt->mount);
}
void
mount_print(mp)
struct mount *mp;
{
int flags;
const char *type;
#define ST mp->mnt_stat
(void)printf("*** MOUNT %s %s on %s", ST.f_fstypename,
ST.f_mntfromname, ST.f_mntonname);
if ((flags = mp->mnt_flag)) {
int i;
const char *sep = " (";
for (i = 0; mnt_flags[i].m_flag; i++) {
if (flags & mnt_flags[i].m_flag) {
(void)printf("%s%s", sep, mnt_flags[i].m_name);
flags &= ~mnt_flags[i].m_flag;
sep = ",";
}
}
if (flags)
(void)printf("%sunknown_flags:%x", sep, flags);
(void)printf(")");
}
(void)printf("\n");
#undef ST
}
struct e_vnode *
loadvnodes(avnodes)
int *avnodes;
{
int mib[2];
size_t copysize;
struct e_vnode *vnodebase;
if (memf != NULL) {
/*
* do it by hand
*/
return (kinfo_vnodes(avnodes));
}
mib[0] = CTL_KERN;
mib[1] = KERN_VNODE;
if (sysctl(mib, 2, NULL, &copysize, NULL, 0) == -1)
err(1, "sysctl: KERN_VNODE");
if ((vnodebase = malloc(copysize)) == NULL)
errx(1, "malloc");
if (sysctl(mib, 2, vnodebase, &copysize, NULL, 0) == -1)
err(1, "sysctl: KERN_VNODE");
if (copysize % sizeof(struct e_vnode))
errx(1, "vnode size mismatch");
*avnodes = copysize / sizeof(struct e_vnode);
return (vnodebase);
}
/*
* simulate what a running kernel does in in kinfo_vnode
*/
struct e_vnode *
kinfo_vnodes(avnodes)
int *avnodes;
{
struct mntlist mountlist;
struct mount *mp, mount, *mp_next;
struct vnode *vp, vnode, *vp_next;
char *vbuf, *evbuf, *bp;
int num, numvnodes;
#define VPTRSZ sizeof(struct vnode *)
#define VNODESZ sizeof(struct vnode)
KGET(V_NUMV, numvnodes);
if ((vbuf = malloc((numvnodes + 20) * (VPTRSZ + VNODESZ))) == NULL)
errx(1, "malloc");
bp = vbuf;
evbuf = vbuf + (numvnodes + 20) * (VPTRSZ + VNODESZ);
KGET(V_MOUNTLIST, mountlist);
for (num = 0, mp = mountlist.cqh_first; ; mp = mp_next) {
KGET2(mp, &mount, sizeof(mount), "mount entry");
mp_next = mount.mnt_list.cqe_next;
for (vp = mount.mnt_vnodelist.lh_first;
vp != NULL; vp = vp_next) {
KGET2(vp, &vnode, sizeof(vnode), "vnode");
vp_next = vnode.v_mntvnodes.le_next;
if ((bp + VPTRSZ + VNODESZ) > evbuf)
/* XXX - should realloc */
errx(1, "no more room for vnodes");
memmove(bp, &vp, VPTRSZ);
bp += VPTRSZ;
memmove(bp, &vnode, VNODESZ);
bp += VNODESZ;
num++;
}
if (mp == mountlist.cqh_last)
break;
}
*avnodes = num;
return ((struct e_vnode *)vbuf);
}
char hdr[]=" LINE RAW CAN OUT HWT LWT COL STATE SESS PGID DISC\n";
int ttyspace = 128;
void
ttymode()
{
struct tty *tty;
if ((tty = malloc(ttyspace * sizeof(*tty))) == NULL)
errx(1, "malloc");
#if !defined(hp300) && !defined(mips)
if (nl[SCONS].n_type != 0) {
(void)printf("1 console\n");
KGET(SCONS, *tty);
(void)printf(hdr);
ttyprt(&tty[0], 0);
}
#endif
#ifdef vax
if (nl[SNQD].n_type != 0)
qdss();
if (nl[SNDZ].n_type != 0)
ttytype(tty, "dz", SDZ, SNDZ, 0);
if (nl[SNDH].n_type != 0)
ttytype(tty, "dh", SDH, SNDH, 0);
if (nl[SNDMF].n_type != 0)
ttytype(tty, "dmf", SDMF, SNDMF, 0);
if (nl[SNDHU].n_type != 0)
ttytype(tty, "dhu", SDHU, SNDHU, 0);
if (nl[SNDMZ].n_type != 0)
ttytype(tty, "dmz", SDMZ, SNDMZ, 0);
#endif
#ifdef tahoe
if (nl[SNVX].n_type != 0)
ttytype(tty, "vx", SVX, SNVX, 0);
if (nl[SNMP].n_type != 0)
ttytype(tty, "mp", SMP, SNMP, 0);
#endif
#ifdef hp300
if (nl[SNITE].n_type != 0)
ttytype(tty, "ite", SITE, SNITE, 0);
if (nl[SNDCA].n_type != 0)
ttytype(tty, "dca", SDCA, SNDCA, 0);
if (nl[SNDCM].n_type != 0)
ttytype(tty, "dcm", SDCM, SNDCM, 0);
if (nl[SNDCL].n_type != 0)
ttytype(tty, "dcl", SDCL, SNDCL, 0);
#endif
#ifdef mips
if (nl[SNDC].n_type != 0)
ttytype(tty, "dc", SDC, SNDC, 0);
#endif
#ifdef __FreeBSD__
if (nl[NSCCONS].n_type != 0)
ttytype(tty, "vty", SCCONS, NSCCONS, 0);
if (nl[NSIO].n_type != 0)
ttytype(tty, "sio", SIO, NSIO, 0);
if (nl[NRC].n_type != 0)
ttytype(tty, "rc", RC, NRC, 0);
if (nl[NCY].n_type != 0)
ttytype(tty, "cy", CY, NCY, 0);
if (nl[NSI].n_type != 0)
ttytype(tty, "si", SI, NSI, 1);
#endif
if (nl[SNPTY].n_type != 0)
ttytype(tty, "pty", SPTY, SNPTY, 0);
}
void
ttytype(tty, name, type, number, indir)
struct tty *tty;
char *name;
int type, number, indir;
{
struct tty *tp;
int ntty;
struct tty **ttyaddr;
if (tty == NULL)
return;
KGET(number, ntty);
(void)printf("%d %s %s\n", ntty, name, (ntty == 1) ? "line" : "lines");
if (ntty > ttyspace) {
ttyspace = ntty;
if ((tty = realloc(tty, ttyspace * sizeof(*tty))) == 0)
errx(1, "realloc");
}
if (indir) {
KGET(type, ttyaddr);
KGET2(ttyaddr, tty, ntty * sizeof(struct tty), "tty structs");
} else {
KGET1(type, tty, ntty * sizeof(struct tty), "tty structs");
}
(void)printf(hdr);
for (tp = tty; tp < &tty[ntty]; tp++)
ttyprt(tp, tp - tty);
}
struct {
int flag;
char val;
} ttystates[] = {
#ifdef TS_WOPEN
{ TS_WOPEN, 'W'},
#endif
{ TS_ISOPEN, 'O'},
{ TS_CARR_ON, 'C'},
#ifdef TS_CONNECTED
{ TS_CONNECTED, 'c'},
#endif
{ TS_TIMEOUT, 'T'},
{ TS_FLUSH, 'F'},
{ TS_BUSY, 'B'},
#ifdef TS_ASLEEP
{ TS_ASLEEP, 'A'},
#endif
#ifdef TS_SO_OLOWAT
{ TS_SO_OLOWAT, 'A'},
#endif
#ifdef TS_SO_OCOMPLETE
{ TS_SO_OCOMPLETE, 'a'},
#endif
{ TS_XCLUDE, 'X'},
{ TS_TTSTOP, 'S'},
#ifdef TS_CAR_OFLOW
{ TS_CAR_OFLOW, 'm'},
#endif
#ifdef TS_CTS_OFLOW
{ TS_CTS_OFLOW, 'o'},
#endif
#ifdef TS_DSR_OFLOW
{ TS_DSR_OFLOW, 'd'},
#endif
{ TS_TBLOCK, 'K'},
{ TS_ASYNC, 'Y'},
{ TS_BKSL, 'D'},
{ TS_ERASE, 'E'},
{ TS_LNCH, 'L'},
{ TS_TYPEN, 'P'},
{ TS_CNTTB, 'N'},
#ifdef TS_CAN_BYPASS_L_RINT
{ TS_CAN_BYPASS_L_RINT, 'l'},
#endif
#ifdef TS_SNOOP
{ TS_SNOOP, 's'},
#endif
#ifdef TS_ZOMBIE
{ TS_ZOMBIE, 'Z'},
#endif
{ 0, '\0'},
};
void
ttyprt(tp, line)
struct tty *tp;
int line;
{
int i, j;
pid_t pgid;
char *name, state[20];
if (usenumflag || tp->t_dev == 0 ||
(name = devname(tp->t_dev, S_IFCHR)) == NULL)
(void)printf("%7d ", line);
else
(void)printf("%7s ", name);
(void)printf("%2d %3d ", tp->t_rawq.c_cc, tp->t_canq.c_cc);
(void)printf("%3d %4d %3d %7d ", tp->t_outq.c_cc,
tp->t_hiwat, tp->t_lowat, tp->t_column);
for (i = j = 0; ttystates[i].flag; i++)
if (tp->t_state&ttystates[i].flag)
state[j++] = ttystates[i].val;
if (j == 0)
state[j++] = '-';
state[j] = '\0';
(void)printf("%-6s %8x", state, (u_long)tp->t_session);
pgid = 0;
if (tp->t_pgrp != NULL)
KGET2(&tp->t_pgrp->pg_id, &pgid, sizeof(pid_t), "pgid");
(void)printf("%6d ", pgid);
switch (tp->t_line) {
case TTYDISC:
(void)printf("term\n");
break;
case NTTYDISC:
(void)printf("ntty\n");
break;
case TABLDISC:
(void)printf("tab\n");
break;
case SLIPDISC:
(void)printf("slip\n");
break;
case PPPDISC:
(void)printf("ppp\n");
break;
default:
(void)printf("%d\n", tp->t_line);
break;
}
}
void
filemode()
{
struct file *fp;
struct file *addr;
char *buf, flagbuf[16], *fbp;
int len, maxfile, nfile;
static char *dtypes[] = { "???", "inode", "socket" };
KGET(FNL_MAXFILE, maxfile);
if (totalflag) {
KGET(FNL_NFILE, nfile);
(void)printf("%3d/%3d files\n", nfile, maxfile);
return;
}
if (getfiles(&buf, &len) == -1)
return;
/*
* Getfiles returns in malloc'd memory a pointer to the first file
* structure, and then an array of file structs (whose addresses are
* derivable from the previous entry).
*/
addr = ((struct filelist *)buf)->lh_first;
fp = (struct file *)(buf + sizeof(struct filelist));
nfile = (len - sizeof(struct filelist)) / sizeof(struct file);
(void)printf("%d/%d open files\n", nfile, maxfile);
(void)printf(" LOC TYPE FLG CNT MSG DATA OFFSET\n");
for (; (char *)fp < buf + len; addr = fp->f_list.le_next, fp++) {
if ((unsigned)fp->f_type > DTYPE_SOCKET)
continue;
(void)printf("%x ", addr);
(void)printf("%-8.8s", dtypes[fp->f_type]);
fbp = flagbuf;
if (fp->f_flag & FREAD)
*fbp++ = 'R';
if (fp->f_flag & FWRITE)
*fbp++ = 'W';
if (fp->f_flag & FAPPEND)
*fbp++ = 'A';
#ifdef FSHLOCK /* currently gone */
if (fp->f_flag & FSHLOCK)
*fbp++ = 'S';
if (fp->f_flag & FEXLOCK)
*fbp++ = 'X';
#endif
if (fp->f_flag & FASYNC)
*fbp++ = 'I';
*fbp = '\0';
(void)printf("%6s %3d", flagbuf, fp->f_count);
(void)printf(" %3d", fp->f_msgcount);
(void)printf(" %8.1x", fp->f_data);
if (fp->f_offset < 0)
(void)printf(" %qx\n", fp->f_offset);
else
(void)printf(" %qd\n", fp->f_offset);
}
free(buf);
}
int
getfiles(abuf, alen)
char **abuf;
int *alen;
{
size_t len;
int mib[2];
char *buf;
/*
* XXX
* Add emulation of KINFO_FILE here.
*/
if (memf != NULL)
errx(1, "files on dead kernel, not implemented");
mib[0] = CTL_KERN;
mib[1] = KERN_FILE;
if (sysctl(mib, 2, NULL, &len, NULL, 0) == -1) {
warn("sysctl: KERN_FILE");
return (-1);
}
if ((buf = malloc(len)) == NULL)
errx(1, "malloc");
if (sysctl(mib, 2, buf, &len, NULL, 0) == -1) {
warn("sysctl: KERN_FILE");
return (-1);
}
*abuf = buf;
*alen = len;
return (0);
}
/*
* swapmode is based on a program called swapinfo written
* by Kevin Lahey <kml@rokkaku.atl.ga.us>.
*/
void
swapmode()
{
char *header, *p;
int hlen, nswap, nswdev, dmmax;
int i, div, avail, nfree, npfree, used;
struct swdevt *sw;
long blocksize, *perdev;
struct rlist head;
struct rlisthdr swaplist;
struct rlist *swapptr;
u_long ptr;
KGET(VM_NSWAP, nswap);
KGET(VM_NSWDEV, nswdev);
KGET(VM_DMMAX, dmmax);
KGET1(VM_SWAPLIST, &swaplist, sizeof swaplist, "swaplist");
if ((sw = malloc(nswdev * sizeof(*sw))) == NULL ||
(perdev = malloc(nswdev * sizeof(*perdev))) == NULL)
errx(1, "malloc");
KGET1(VM_SWDEVT, &ptr, sizeof ptr, "swdevt");
KGET2(ptr, sw, nswdev * sizeof(*sw), "*swdevt");
/* Count up swap space. */
nfree = 0;
memset(perdev, 0, nswdev * sizeof(*perdev));
swapptr = swaplist.rlh_list;
while (swapptr) {
int top, bottom, next_block;
KGET2(swapptr, &head, sizeof(struct rlist), "swapptr");
top = head.rl_end;
bottom = head.rl_start;
nfree += top - bottom + 1;
/*
* Swap space is split up among the configured disks.
*
* For interleaved swap devices, the first dmmax blocks
* of swap space some from the first disk, the next dmmax
* blocks from the next, and so on up to nswap blocks.
*
* The list of free space joins adjacent free blocks,
* ignoring device boundries. If we want to keep track
* of this information per device, we'll just have to
* extract it ourselves.
*/
while (top / dmmax != bottom / dmmax) {
next_block = ((bottom + dmmax) / dmmax);
perdev[(bottom / dmmax) % nswdev] +=
next_block * dmmax - bottom;
bottom = next_block * dmmax;
}
perdev[(bottom / dmmax) % nswdev] +=
top - bottom + 1;
swapptr = head.rl_next;
}
header = getbsize(&hlen, &blocksize);
if (!totalflag)
(void)printf("%-11s %*s %8s %8s %8s %s\n",
"Device", hlen, header,
"Used", "Avail", "Capacity", "Type");
div = blocksize / 512;
avail = npfree = 0;
for (i = 0; i < nswdev; i++) {
int xsize, xfree;
/*
* Don't report statistics for partitions which have not
* yet been activated via swapon(8).
*/
if (!(sw[i].sw_flags & SW_FREED))
continue;
if (!totalflag)
if (sw[i].sw_dev != NODEV) {
p = devname(sw[i].sw_dev, S_IFBLK);
(void)printf("/dev/%-6s %*d ",
p == NULL ? "??" : p,
hlen, sw[i].sw_nblks / div);
} else
(void)printf("[NFS swap] %*d ",
hlen, sw[i].sw_nblks / div);
/* The first dmmax is never allocated to avoid trashing of
* disklabels
*/
xsize = sw[i].sw_nblks - dmmax;
xfree = perdev[i];
used = xsize - xfree;
npfree++;
avail += xsize;
if (totalflag)
continue;
(void)printf("%8d %8d %5.0f%% %s\n",
used / div, xfree / div,
(double)used / (double)xsize * 100.0,
(sw[i].sw_flags & SW_SEQUENTIAL) ?
"Sequential" : "Interleaved");
}
/*
* If only one partition has been set up via swapon(8), we don't
* need to bother with totals.
*/
used = avail - nfree;
free(sw);
free(perdev);
if (totalflag) {
(void)printf("%dM/%dM swap space\n", used / 2048, avail / 2048);
return;
}
if (npfree > 1) {
(void)printf("%-11s %*d %8d %8d %5.0f%%\n",
"Total", hlen, avail / div, used / div, nfree / div,
(double)used / (double)avail * 100.0);
}
}
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