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NetBSD/usr.sbin/pstat/pstat.c

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/* $NetBSD: pstat.c,v 1.54 2000/11/02 21:40:37 tron Exp $ */
/*-
* 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.
*/
#include <sys/cdefs.h>
#ifndef lint
__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";
#else
__RCSID("$NetBSD: pstat.c,v 1.54 2000/11/02 21:40:37 tron Exp $");
#endif
#endif /* not lint */
#include <sys/param.h>
#include <sys/time.h>
#include <sys/vnode.h>
#include <sys/map.h>
#include <sys/ucred.h>
#define _KERNEL
#define _LKM
#include <sys/file.h>
#include <ufs/ufs/quota.h>
#include <ufs/ufs/inode.h>
#define NFS
#include <sys/mount.h>
#undef NFS
#include <sys/uio.h>
#include <sys/namei.h>
#include <miscfs/union/union.h>
#undef _KERNEL
#include <sys/stat.h>
#include <nfs/nfsproto.h>
#include <nfs/rpcv2.h>
#include <nfs/nfs.h>
#include <nfs/nfsnode.h>
#include <sys/ioctl.h>
#include <sys/tty.h>
#include <sys/conf.h>
#include <sys/device.h>
#include <sys/sysctl.h>
#include <err.h>
#include <kvm.h>
#include <limits.h>
#include <nlist.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include "swapctl.h"
struct nlist nl[] = {
#define V_MOUNTLIST 0
{ "_mountlist" }, /* address of head of mount list. */
#define V_NUMV 1
{ "_numvnodes" },
#define FNL_NFILE 2
{ "_nfiles" },
#define FNL_MAXFILE 3
{ "_maxfiles" },
#define TTY_NTTY 4
{ "_tty_count" },
#define TTY_TTYLIST 5
{ "_ttylist" },
#define NLMANDATORY TTY_TTYLIST /* names up to here are mandatory */
{ "" }
};
int usenumflag;
int totalflag;
int kflag;
char *nlistf = NULL;
char *memf = NULL;
kvm_t *kd;
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_NOCOREDUMP, "nocoredump" },
{ MNT_NOATIME, "noatime" },
{ MNT_SYMPERM, "symperm" },
{ MNT_NODEVMTIME, "nodevmtime" },
{ MNT_SOFTDEP, "softdep" },
{ MNT_EXRDONLY, "exrdonly" },
{ MNT_EXPORTED, "exported" },
{ MNT_DEFEXPORTED, "defexported" },
{ MNT_EXPORTANON, "exportanon" },
{ MNT_EXKERB, "exkerb" },
{ MNT_EXNORESPORT, "exnoresport" },
{ MNT_EXPUBLIC, "expublic" },
{ MNT_LOCAL, "local" },
{ MNT_QUOTA, "quota" },
{ MNT_ROOTFS, "rootfs" },
{ MNT_UPDATE, "update" },
{ MNT_DELEXPORT, "delexport" },
{ MNT_RELOAD, "reload" },
{ MNT_FORCE, "force" },
{ MNT_GONE, "gone" },
{ MNT_UNMOUNT, "unmount" },
{ 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 *));
int main __P((int, char **));
void mount_print __P((struct mount *));
void nfs_header __P((void));
int nfs_print __P((struct vnode *));
void ttymode __P((void));
void ttyprt __P((struct tty *));
void ufs_getflags __P((struct vnode *, struct inode *, char *));
void ufs_header __P((void));
int ufs_print __P((struct vnode *));
int ext2fs_print __P((struct vnode *));
void union_header __P((void));
int union_print __P((struct vnode *));
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;
gid_t egid = getegid();
char buf[_POSIX2_LINE_MAX];
setegid(getgid());
fileflag = swapflag = ttyflag = vnodeflag = 0;
while ((ch = getopt(argc, argv, "TM:N:fiknstv")) != -1)
switch (ch) {
case 'f':
fileflag = 1;
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 'k':
kflag = 1;
break;
case 'v':
case 'i': /* Backward compatibility. */
vnodeflag = 1;
break;
default:
usage();
}
argc -= optind;
argv += optind;
/*
* Discard setgid privileges. If not the running kernel, we toss
* them away totally so that bad guys can't print interesting stuff
* from kernel memory, otherwise switch back to kmem for the
* duration of the kvm_openfiles() call.
*/
if (nlistf != NULL || memf != NULL)
(void)setgid(getgid());
else
(void)setegid(egid);
if ((kd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY, buf)) == 0)
errx(1, "kvm_openfiles: %s", buf);
/* get rid of it now anyway */
if (nlistf == NULL && memf == NULL)
(void)setgid(getgid());
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 || totalflag)
vnodemode();
if (ttyflag)
ttymode();
if (swapflag || totalflag)
list_swap(0, kflag, 0, totalflag, 1);
exit (0);
}
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;
int (*vnode_fsprint) __P((struct vnode *)); /* per-fs data printer */
mp = NULL;
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
#define FSTYPE_IS(mp, name) \
(strncmp((mp)->mnt_stat.f_fstypename, (name), MFSNAMELEN) == 0)
maddr = NULL;
vnode_fsprint = 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 (FSTYPE_IS(mp, MOUNT_FFS) ||
FSTYPE_IS(mp, MOUNT_MFS)) {
ufs_header();
vnode_fsprint = ufs_print;
} else if (FSTYPE_IS(mp, MOUNT_NFS)) {
nfs_header();
vnode_fsprint = nfs_print;
} else if (FSTYPE_IS(mp, MOUNT_EXT2FS)) {
ufs_header();
vnode_fsprint = ext2fs_print;
} else if (FSTYPE_IS(mp, MOUNT_UNION)) {
union_header();
vnode_fsprint = union_print;
} else
vnode_fsprint = NULL;
(void)printf("\n");
}
vnode_print(evp->avnode, vp);
if (VTOI(vp) != NULL && vnode_fsprint != NULL)
(*vnode_fsprint)(vp);
(void)printf("\n");
}
free(e_vnodebase);
}
void
vnode_header()
{
(void)printf("ADDR TYP VFLAG USE HOLD TAG");
}
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++ = 'I';
if (flag & VXLOCK)
*fp++ = 'L';
if (flag & VXWANT)
*fp++ = 'W';
if (flag & VBWAIT)
*fp++ = 'B';
if (flag & VALIASED)
*fp++ = 'A';
if (flag & VDIROP)
*fp++ = 'D';
if (flag & VLAYER)
*fp++ = 'Y';
if (flag & VONWORKLST)
*fp++ = 'O';
if (flag == 0)
*fp++ = '-';
*fp = '\0';
(void)printf("%8lx %s %5s %4ld %4ld %3d",
(long)avnode, type, flags, (long)vp->v_usecount,
(long)vp->v_holdcnt, vp->v_tag);
}
void
ufs_getflags(vp, ip, flags)
struct vnode *vp;
struct inode *ip;
char *flags;
{
int flag;
/*
* XXX need to to locking state.
*/
flag = ip->i_flag;
if (flag & IN_ACCESS)
*flags++ = 'A';
if (flag & IN_CHANGE)
*flags++ = 'C';
if (flag & IN_UPDATE)
*flags++ = 'U';
if (flag & IN_MODIFIED)
*flags++ = 'M';
if (flag & IN_ACCESSED)
*flags++ = 'a';
if (flag & IN_RENAME)
*flags++ = 'R';
if (flag & IN_SHLOCK)
*flags++ = 'S';
if (flag & IN_EXLOCK)
*flags++ = 'E';
if (flag & IN_CLEANING)
*flags++ = 'c';
if (flag & IN_ADIROP)
*flags++ = 'a';
if (flag == 0)
*flags++ = '-';
*flags = '\0';
}
void
ufs_header()
{
(void)printf(" FILEID IFLAG RDEV|SZ");
}
int
ufs_print(vp)
struct vnode *vp;
{
struct inode inode, *ip = &inode;
char flagbuf[16];
char *name;
mode_t type;
KGETRET(VTOI(vp), &inode, sizeof(struct inode), "vnode's inode");
ufs_getflags(vp, ip, flagbuf);
(void)printf(" %6d %5s", ip->i_number, flagbuf);
type = ip->i_ffs_mode & S_IFMT;
if (S_ISCHR(ip->i_ffs_mode) || S_ISBLK(ip->i_ffs_mode))
if (usenumflag ||
((name = devname(ip->i_ffs_rdev, type)) == NULL))
(void)printf(" %2d,%-2d",
major(ip->i_ffs_rdev), minor(ip->i_ffs_rdev));
else
(void)printf(" %7s", name);
else
(void)printf(" %7qd", (long long)ip->i_ffs_size);
return (0);
}
int
ext2fs_print(vp)
struct vnode *vp;
{
struct inode inode, *ip = &inode;
char flagbuf[16];
char *name;
mode_t type;
KGETRET(VTOI(vp), &inode, sizeof(struct inode), "vnode's inode");
ufs_getflags(vp, ip, flagbuf);
(void)printf(" %6d %5s", ip->i_number, flagbuf);
type = ip->i_e2fs_mode & S_IFMT;
if (S_ISCHR(ip->i_e2fs_mode) || S_ISBLK(ip->i_e2fs_mode))
if (usenumflag ||
((name = devname(ip->i_e2fs_rdev, type)) == NULL))
(void)printf(" %2d,%-2d",
major(ip->i_e2fs_rdev), minor(ip->i_e2fs_rdev));
else
(void)printf(" %7s", name);
else
(void)printf(" %7u", (u_int)ip->i_e2fs_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;
struct vattr va;
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 & NACC)
*flags++ = 'A';
if (flag & NUPD)
*flags++ = 'U';
if (flag & NCHG)
*flags++ = 'C';
if (flag == 0)
*flags++ = '-';
*flags = '\0';
KGETRET(np->n_vattr, &va, sizeof(va), "vnode attr");
(void)printf(" %6ld %5s", (long)va.va_fileid, flagbuf);
type = va.va_mode & S_IFMT;
if (S_ISCHR(va.va_mode) || S_ISBLK(va.va_mode))
if (usenumflag || ((name = devname(va.va_rdev, type)) == NULL))
(void)printf(" %2d,%-2d",
major(va.va_rdev), minor(va.va_rdev));
else
(void)printf(" %7s", name);
else
(void)printf(" %7qd", (long long)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(" %8lx %8lx", (long)up->un_uppervp, (long)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)
err(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;
(void)printf("*** MOUNT %s %s on %s", ST.f_fstypename,
ST.f_mntfromname, ST.f_mntonname);
if ((flags = mp->mnt_flag) != 0) {
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");
}
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)
err(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;
struct vnode *vp, vnode;
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)
err(1, "malloc");
bp = vbuf;
evbuf = vbuf + (numvnodes + 20) * (VPTRSZ + VNODESZ);
KGET(V_MOUNTLIST, mountlist);
for (num = 0, mp = mountlist.cqh_first;;
mp = mount.mnt_list.cqe_next) {
KGET2(mp, &mount, sizeof(mount), "mount entry");
for (vp = mount.mnt_vnodelist.lh_first;
vp != NULL; vp = vnode.v_mntvnodes.le_next) {
KGET2(vp, &vnode, sizeof(vnode), "vnode");
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);
}
const char hdr[]=" LINE RAW CAN OUT HWT LWT COL STATE SESS PGID DISC\n";
int ttyspace = 128;
void
ttymode()
{
int ntty;
struct ttylist_head tty_head;
struct tty *tp, tty;
KGET(TTY_NTTY, ntty);
(void)printf("%d terminal device%s\n", ntty, ntty == 1 ? "" : "s");
KGET(TTY_TTYLIST, tty_head);
(void)printf(hdr);
for (tp = tty_head.tqh_first; tp; tp = tty.tty_link.tqe_next) {
KGET2(tp, &tty, sizeof tty, "tty struct");
ttyprt(&tty);
}
}
struct {
int flag;
char val;
} ttystates[] = {
{ TS_ISOPEN, 'O'},
{ TS_DIALOUT, '>'},
{ TS_CARR_ON, 'C'},
{ TS_TIMEOUT, 'T'},
{ TS_FLUSH, 'F'},
{ TS_BUSY, 'B'},
{ TS_ASLEEP, 'A'},
{ TS_XCLUDE, 'X'},
{ TS_TTSTOP, 'S'},
{ TS_TBLOCK, 'K'},
{ TS_ASYNC, 'Y'},
{ TS_BKSL, 'D'},
{ TS_ERASE, 'E'},
{ TS_LNCH, 'L'},
{ TS_TYPEN, 'P'},
{ TS_CNTTB, 'N'},
{ 0, '\0'},
};
void
ttyprt(tp)
struct tty *tp;
{
int i, j;
pid_t pgid;
char *name, state[20], buffer;
struct linesw t_linesw;
if (usenumflag || (name = devname(tp->t_dev, S_IFCHR)) == NULL)
(void)printf("0x%3x:%1x ", major(tp->t_dev), minor(tp->t_dev));
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 (tp->t_wopen)
state[j++] = 'W';
if (j == 0)
state[j++] = '-';
state[j] = '\0';
(void)printf("%-6s %8lX", 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);
KGET2(tp->t_linesw, &t_linesw, sizeof(t_linesw),
"line discipline switch table");
name = t_linesw.l_name;
for (;;) {
KGET2(name, &buffer, sizeof(buffer), "line discipline name");
if (buffer == '\0')
break;
(void)putchar(buffer);
name++;
}
(void)putchar('\n');
}
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("%lx ", (long)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(" %8.1lx", (long)fp->f_data);
if (fp->f_offset < 0)
(void)printf(" %qx\n", (long long)fp->f_offset);
else
(void)printf(" %qd\n", (long long)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\n");
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)
err(1, "malloc");
if (sysctl(mib, 2, buf, &len, NULL, 0) == -1) {
warn("sysctl: KERN_FILE");
return (-1);
}
*abuf = buf;
*alen = len;
return (0);
}
void
usage()
{
(void)fprintf(stderr,
"usage: pstat [-T|-f|-s|-t|-v] [-kn] [-M core] [-N system]\n");
exit(1);
}
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