pstat.c revision 3453 
1/*-
2 * Copyright (c) 1980, 1991, 1993
3 *	The Regents of the University of California.  All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 *    must display the following acknowledgement:
15 *	This product includes software developed by the University of
16 *	California, Berkeley and its contributors.
17 * 4. Neither the name of the University nor the names of its contributors
18 *    may be used to endorse or promote products derived from this software
19 *    without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 */
33
34#ifndef lint
35static char copyright[] =
36"@(#) Copyright (c) 1980, 1991, 1993\n\
37	The Regents of the University of California.  All rights reserved.\n";
38#endif /* not lint */
39
40#ifndef lint
41static char sccsid[] = "@(#)pstat.c	8.9 (Berkeley) 2/16/94";
42#endif /* not lint */
43
44#include <sys/param.h>
45#include <sys/time.h>
46#include <sys/vnode.h>
47#include <sys/ucred.h>
48#define KERNEL
49#include <sys/file.h>
50#include <ufs/ufs/quota.h>
51#include <ufs/ufs/inode.h>
52#define NFS
53#include <sys/mount.h>
54#undef NFS
55#undef KERNEL
56#include <sys/stat.h>
57#include <nfs/nfsnode.h>
58#include <sys/ioctl.h>
59#include <sys/tty.h>
60#include <sys/conf.h>
61#include <sys/rlist.h>
62
63#include <sys/sysctl.h>
64
65#include <err.h>
66#include <kvm.h>
67#include <limits.h>
68#include <nlist.h>
69#include <stdio.h>
70#include <stdlib.h>
71#include <string.h>
72#include <unistd.h>
73
74struct nlist nl[] = {
75#define VM_SWAPLIST	0
76	{ "_swaplist" },/* list of free swap areas */
77#define VM_SWDEVT	1
78	{ "_swdevt" },	/* list of swap devices and sizes */
79#define VM_NSWAP	2
80	{ "_nswap" },	/* size of largest swap device */
81#define VM_NSWDEV	3
82	{ "_nswdev" },	/* number of swap devices */
83#define VM_DMMAX	4
84	{ "_dmmax" },	/* maximum size of a swap block */
85#define	V_MOUNTLIST	5
86	{ "_mountlist" },	/* address of head of mount list. */
87#define V_NUMV		6
88	{ "_numvnodes" },
89#define	FNL_NFILE	7
90	{"_nfiles"},
91#define FNL_MAXFILE	8
92	{"_maxfiles"},
93#define NLMANDATORY FNL_MAXFILE	/* names up to here are mandatory */
94#define VM_NISWAP	NLMANDATORY + 1
95	{ "_niswap" },
96#define VM_NISWDEV	NLMANDATORY + 2
97	{ "_niswdev" },
98#define	SCONS		NLMANDATORY + 3
99	{ "_cons" },
100#define	SPTY		NLMANDATORY + 4
101	{ "_pt_tty" },
102#define	SNPTY		NLMANDATORY + 5
103	{ "_npty" },
104
105#ifdef hp300
106#define	SDCA	(SNPTY+1)
107	{ "_dca_tty" },
108#define	SNDCA	(SNPTY+2)
109	{ "_ndca" },
110#define	SDCM	(SNPTY+3)
111	{ "_dcm_tty" },
112#define	SNDCM	(SNPTY+4)
113	{ "_ndcm" },
114#define	SDCL	(SNPTY+5)
115	{ "_dcl_tty" },
116#define	SNDCL	(SNPTY+6)
117	{ "_ndcl" },
118#define	SITE	(SNPTY+7)
119	{ "_ite_tty" },
120#define	SNITE	(SNPTY+8)
121	{ "_nite" },
122#endif
123
124#ifdef mips
125#define SDC	(SNPTY+1)
126	{ "_dc_tty" },
127#define SNDC	(SNPTY+2)
128	{ "_dc_cnt" },
129#endif
130
131	{ "" }
132};
133
134int	usenumflag;
135int	totalflag;
136char	*nlistf	= NULL;
137char	*memf	= NULL;
138kvm_t	*kd;
139
140#define	SVAR(var) __STRING(var)	/* to force expansion */
141#define	KGET(idx, var)							\
142	KGET1(idx, &var, sizeof(var), SVAR(var))
143#define	KGET1(idx, p, s, msg)						\
144	KGET2(nl[idx].n_value, p, s, msg)
145#define	KGET2(addr, p, s, msg)						\
146	if (kvm_read(kd, (u_long)(addr), p, s) != s)			\
147		warnx("cannot read %s: %s", msg, kvm_geterr(kd))
148#define	KGETRET(addr, p, s, msg)					\
149	if (kvm_read(kd, (u_long)(addr), p, s) != s) {			\
150		warnx("cannot read %s: %s", msg, kvm_geterr(kd));	\
151		return (0);						\
152	}
153
154void	filemode __P((void));
155int	getfiles __P((char **, int *));
156struct mount *
157	getmnt __P((struct mount *));
158struct e_vnode *
159	kinfo_vnodes __P((int *));
160struct e_vnode *
161	loadvnodes __P((int *));
162void	mount_print __P((struct mount *));
163void	nfs_header __P((void));
164int	nfs_print __P((struct vnode *));
165void	swapmode __P((void));
166void	ttymode __P((void));
167void	ttyprt __P((struct tty *, int));
168void	ttytype __P((struct tty *, char *, int, int));
169void	ufs_header __P((void));
170int	ufs_print __P((struct vnode *));
171void	usage __P((void));
172void	vnode_header __P((void));
173void	vnode_print __P((struct vnode *, struct vnode *));
174void	vnodemode __P((void));
175
176int
177main(argc, argv)
178	int argc;
179	char *argv[];
180{
181	extern char *optarg;
182	extern int optind;
183	int ch, i, quit, ret;
184	int fileflag, swapflag, ttyflag, vnodeflag;
185	char buf[_POSIX2_LINE_MAX];
186
187	fileflag = swapflag = ttyflag = vnodeflag = 0;
188	while ((ch = getopt(argc, argv, "TM:N:finstv")) != EOF)
189		switch (ch) {
190		case 'f':
191			fileflag = 1;
192			break;
193		case 'M':
194			memf = optarg;
195			break;
196		case 'N':
197			nlistf = optarg;
198			break;
199		case 'n':
200			usenumflag = 1;
201			break;
202		case 's':
203			swapflag = 1;
204			break;
205		case 'T':
206			totalflag = 1;
207			break;
208		case 't':
209			ttyflag = 1;
210			break;
211		case 'v':
212		case 'i':		/* Backward compatibility. */
213			vnodeflag = 1;
214			break;
215		default:
216			usage();
217		}
218	argc -= optind;
219	argv += optind;
220
221	/*
222	 * Discard setgid privileges if not the running kernel so that bad
223	 * guys can't print interesting stuff from kernel memory.
224	 */
225	if (nlistf != NULL || memf != NULL)
226		(void)setgid(getgid());
227
228	if ((kd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY, buf)) == 0)
229		errx(1, "kvm_openfiles: %s", buf);
230	if ((ret = kvm_nlist(kd, nl)) != 0) {
231		if (ret == -1)
232			errx(1, "kvm_nlist: %s", kvm_geterr(kd));
233		for (i = quit = 0; i <= NLMANDATORY; i++)
234			if (!nl[i].n_value) {
235				quit = 1;
236				warnx("undefined symbol: %s\n", nl[i].n_name);
237			}
238		if (quit)
239			exit(1);
240	}
241	if (!(fileflag | vnodeflag | ttyflag | swapflag | totalflag))
242		usage();
243	if (fileflag || totalflag)
244		filemode();
245	if (vnodeflag || totalflag)
246		vnodemode();
247	if (ttyflag)
248		ttymode();
249	if (swapflag || totalflag)
250		swapmode();
251	exit (0);
252}
253
254struct e_vnode {
255	struct vnode *avnode;
256	struct vnode vnode;
257};
258
259void
260vnodemode()
261{
262	register struct e_vnode *e_vnodebase, *endvnode, *evp;
263	register struct vnode *vp;
264	register struct mount *maddr, *mp;
265	int numvnodes;
266
267	e_vnodebase = loadvnodes(&numvnodes);
268	if (totalflag) {
269		(void)printf("%7d vnodes\n", numvnodes);
270		return;
271	}
272	endvnode = e_vnodebase + numvnodes;
273	(void)printf("%d active vnodes\n", numvnodes);
274
275
276#define ST	mp->mnt_stat
277	maddr = NULL;
278	for (evp = e_vnodebase; evp < endvnode; evp++) {
279		vp = &evp->vnode;
280		if (vp->v_mount != maddr) {
281			/*
282			 * New filesystem
283			 */
284			if ((mp = getmnt(vp->v_mount)) == NULL)
285				continue;
286			maddr = vp->v_mount;
287			mount_print(mp);
288			vnode_header();
289			switch(ST.f_type) {
290			case MOUNT_UFS:
291			case MOUNT_MFS:
292				ufs_header();
293				break;
294			case MOUNT_NFS:
295				nfs_header();
296				break;
297			case MOUNT_NONE:
298			case MOUNT_MSDOS:
299			default:
300				break;
301			}
302			(void)printf("\n");
303		}
304		vnode_print(evp->avnode, vp);
305		switch(ST.f_type) {
306		case MOUNT_UFS:
307		case MOUNT_MFS:
308			ufs_print(vp);
309			break;
310		case MOUNT_NFS:
311			nfs_print(vp);
312			break;
313		case MOUNT_NONE:
314		case MOUNT_MSDOS:
315		default:
316			break;
317		}
318		(void)printf("\n");
319	}
320	free(e_vnodebase);
321}
322
323void
324vnode_header()
325{
326	(void)printf("ADDR     TYP VFLAG  USE HOLD");
327}
328
329void
330vnode_print(avnode, vp)
331	struct vnode *avnode;
332	struct vnode *vp;
333{
334	char *type, flags[16];
335	char *fp = flags;
336	register int flag;
337
338	/*
339	 * set type
340	 */
341	switch(vp->v_type) {
342	case VNON:
343		type = "non"; break;
344	case VREG:
345		type = "reg"; break;
346	case VDIR:
347		type = "dir"; break;
348	case VBLK:
349		type = "blk"; break;
350	case VCHR:
351		type = "chr"; break;
352	case VLNK:
353		type = "lnk"; break;
354	case VSOCK:
355		type = "soc"; break;
356	case VFIFO:
357		type = "fif"; break;
358	case VBAD:
359		type = "bad"; break;
360	default:
361		type = "unk"; break;
362	}
363	/*
364	 * gather flags
365	 */
366	flag = vp->v_flag;
367	if (flag & VROOT)
368		*fp++ = 'R';
369	if (flag & VTEXT)
370		*fp++ = 'T';
371	if (flag & VSYSTEM)
372		*fp++ = 'S';
373	if (flag & VXLOCK)
374		*fp++ = 'L';
375	if (flag & VXWANT)
376		*fp++ = 'W';
377	if (flag & VBWAIT)
378		*fp++ = 'B';
379	if (flag & VALIASED)
380		*fp++ = 'A';
381	if (flag == 0)
382		*fp++ = '-';
383	*fp = '\0';
384	(void)printf("%8x %s %5s %4d %4d",
385	    avnode, type, flags, vp->v_usecount, vp->v_holdcnt);
386}
387
388void
389ufs_header()
390{
391	(void)printf(" FILEID IFLAG RDEV|SZ");
392}
393
394int
395ufs_print(vp)
396	struct vnode *vp;
397{
398	register int flag;
399	struct inode inode, *ip = &inode;
400	char flagbuf[16], *flags = flagbuf;
401	char *name;
402	mode_t type;
403
404	KGETRET(VTOI(vp), &inode, sizeof(struct inode), "vnode's inode");
405	flag = ip->i_flag;
406	if (flag & IN_LOCKED)
407		*flags++ = 'L';
408	if (flag & IN_WANTED)
409		*flags++ = 'W';
410	if (flag & IN_RENAME)
411		*flags++ = 'R';
412	if (flag & IN_UPDATE)
413		*flags++ = 'U';
414	if (flag & IN_ACCESS)
415		*flags++ = 'A';
416	if (flag & IN_CHANGE)
417		*flags++ = 'C';
418	if (flag & IN_MODIFIED)
419		*flags++ = 'M';
420	if (flag & IN_SHLOCK)
421		*flags++ = 'S';
422	if (flag & IN_EXLOCK)
423		*flags++ = 'E';
424	if (flag & IN_LWAIT)
425		*flags++ = 'Z';
426	if (flag == 0)
427		*flags++ = '-';
428	*flags = '\0';
429
430	(void)printf(" %6d %5s", ip->i_number, flagbuf);
431	type = ip->i_mode & S_IFMT;
432	if (S_ISCHR(ip->i_mode) || S_ISBLK(ip->i_mode))
433		if (usenumflag || ((name = devname(ip->i_rdev, type)) == NULL))
434			(void)printf("   %2d,%-2d",
435			    major(ip->i_rdev), minor(ip->i_rdev));
436		else
437			(void)printf(" %7s", name);
438	else
439		(void)printf(" %7qd", ip->i_size);
440	return (0);
441}
442
443void
444nfs_header()
445{
446	(void)printf(" FILEID NFLAG RDEV|SZ");
447}
448
449int
450nfs_print(vp)
451	struct vnode *vp;
452{
453	struct nfsnode nfsnode, *np = &nfsnode;
454	char flagbuf[16], *flags = flagbuf;
455	register int flag;
456	char *name;
457	mode_t type;
458
459	KGETRET(VTONFS(vp), &nfsnode, sizeof(nfsnode), "vnode's nfsnode");
460	flag = np->n_flag;
461	if (flag & NFLUSHWANT)
462		*flags++ = 'W';
463	if (flag & NFLUSHINPROG)
464		*flags++ = 'P';
465	if (flag & NMODIFIED)
466		*flags++ = 'M';
467	if (flag & NWRITEERR)
468		*flags++ = 'E';
469	if (flag & NQNFSNONCACHE)
470		*flags++ = 'X';
471	if (flag & NQNFSWRITE)
472		*flags++ = 'O';
473	if (flag & NQNFSEVICTED)
474		*flags++ = 'G';
475	if (flag == 0)
476		*flags++ = '-';
477	*flags = '\0';
478
479#define VT	np->n_vattr
480	(void)printf(" %6d %5s", VT.va_fileid, flagbuf);
481	type = VT.va_mode & S_IFMT;
482	if (S_ISCHR(VT.va_mode) || S_ISBLK(VT.va_mode))
483		if (usenumflag || ((name = devname(VT.va_rdev, type)) == NULL))
484			(void)printf("   %2d,%-2d",
485			    major(VT.va_rdev), minor(VT.va_rdev));
486		else
487			(void)printf(" %7s", name);
488	else
489		(void)printf(" %7qd", np->n_size);
490	return (0);
491}
492
493/*
494 * Given a pointer to a mount structure in kernel space,
495 * read it in and return a usable pointer to it.
496 */
497struct mount *
498getmnt(maddr)
499	struct mount *maddr;
500{
501	static struct mtab {
502		struct mtab *next;
503		struct mount *maddr;
504		struct mount mount;
505	} *mhead = NULL;
506	register struct mtab *mt;
507
508	for (mt = mhead; mt != NULL; mt = mt->next)
509		if (maddr == mt->maddr)
510			return (&mt->mount);
511	if ((mt = malloc(sizeof(struct mtab))) == NULL)
512		err(1, NULL);
513	KGETRET(maddr, &mt->mount, sizeof(struct mount), "mount table");
514	mt->maddr = maddr;
515	mt->next = mhead;
516	mhead = mt;
517	return (&mt->mount);
518}
519
520void
521mount_print(mp)
522	struct mount *mp;
523{
524	register int flags;
525	char *type;
526
527#define ST	mp->mnt_stat
528	(void)printf("*** MOUNT ");
529	switch (ST.f_type) {
530	case MOUNT_NONE:
531		type = "none";
532		break;
533	case MOUNT_UFS:
534		type = "ufs";
535		break;
536	case MOUNT_NFS:
537		type = "nfs";
538		break;
539	case MOUNT_MFS:
540		type = "mfs";
541		break;
542	case MOUNT_MSDOS:
543		type = "pc";
544		break;
545	default:
546		type = "unknown";
547		break;
548	}
549	(void)printf("%s %s on %s", type, ST.f_mntfromname, ST.f_mntonname);
550	if (flags = mp->mnt_flag) {
551		char *comma = "(";
552
553		putchar(' ');
554		/* user visable flags */
555		if (flags & MNT_RDONLY) {
556			(void)printf("%srdonly", comma);
557			flags &= ~MNT_RDONLY;
558			comma = ",";
559		}
560		if (flags & MNT_SYNCHRONOUS) {
561			(void)printf("%ssynchronous", comma);
562			flags &= ~MNT_SYNCHRONOUS;
563			comma = ",";
564		}
565		if (flags & MNT_NOEXEC) {
566			(void)printf("%snoexec", comma);
567			flags &= ~MNT_NOEXEC;
568			comma = ",";
569		}
570		if (flags & MNT_NOSUID) {
571			(void)printf("%snosuid", comma);
572			flags &= ~MNT_NOSUID;
573			comma = ",";
574		}
575		if (flags & MNT_NODEV) {
576			(void)printf("%snodev", comma);
577			flags &= ~MNT_NODEV;
578			comma = ",";
579		}
580		if (flags & MNT_EXPORTED) {
581			(void)printf("%sexport", comma);
582			flags &= ~MNT_EXPORTED;
583			comma = ",";
584		}
585		if (flags & MNT_EXRDONLY) {
586			(void)printf("%sexrdonly", comma);
587			flags &= ~MNT_EXRDONLY;
588			comma = ",";
589		}
590		if (flags & MNT_LOCAL) {
591			(void)printf("%slocal", comma);
592			flags &= ~MNT_LOCAL;
593			comma = ",";
594		}
595		if (flags & MNT_QUOTA) {
596			(void)printf("%squota", comma);
597			flags &= ~MNT_QUOTA;
598			comma = ",";
599		}
600		/* filesystem control flags */
601		if (flags & MNT_UPDATE) {
602			(void)printf("%supdate", comma);
603			flags &= ~MNT_UPDATE;
604			comma = ",";
605		}
606		if (flags & MNT_MLOCK) {
607			(void)printf("%slock", comma);
608			flags &= ~MNT_MLOCK;
609			comma = ",";
610		}
611		if (flags & MNT_MWAIT) {
612			(void)printf("%swait", comma);
613			flags &= ~MNT_MWAIT;
614			comma = ",";
615		}
616		if (flags & MNT_MPBUSY) {
617			(void)printf("%sbusy", comma);
618			flags &= ~MNT_MPBUSY;
619			comma = ",";
620		}
621		if (flags & MNT_MPWANT) {
622			(void)printf("%swant", comma);
623			flags &= ~MNT_MPWANT;
624			comma = ",";
625		}
626		if (flags & MNT_UNMOUNT) {
627			(void)printf("%sunmount", comma);
628			flags &= ~MNT_UNMOUNT;
629			comma = ",";
630		}
631		if (flags)
632			(void)printf("%sunknown_flags:%x", comma, flags);
633		(void)printf(")");
634	}
635	(void)printf("\n");
636#undef ST
637}
638
639struct e_vnode *
640loadvnodes(avnodes)
641	int *avnodes;
642{
643	int mib[2];
644	size_t copysize;
645	struct e_vnode *vnodebase;
646
647	if (memf != NULL) {
648		/*
649		 * do it by hand
650		 */
651		return (kinfo_vnodes(avnodes));
652	}
653	mib[0] = CTL_KERN;
654	mib[1] = KERN_VNODE;
655	if (sysctl(mib, 2, NULL, &copysize, NULL, 0) == -1)
656		err(1, "sysctl: KERN_VNODE");
657	if ((vnodebase = malloc(copysize)) == NULL)
658		err(1, NULL);
659	if (sysctl(mib, 2, vnodebase, &copysize, NULL, 0) == -1)
660		err(1, "sysctl: KERN_VNODE");
661	if (copysize % sizeof(struct e_vnode))
662		errx(1, "vnode size mismatch");
663	*avnodes = copysize / sizeof(struct e_vnode);
664
665	return (vnodebase);
666}
667
668/*
669 * simulate what a running kernel does in in kinfo_vnode
670 */
671struct e_vnode *
672kinfo_vnodes(avnodes)
673	int *avnodes;
674{
675	struct mntlist mountlist;
676	struct mount *mp, mount;
677	struct vnode *vp, vnode;
678	char *vbuf, *evbuf, *bp;
679	int num, numvnodes;
680
681#define VPTRSZ  sizeof(struct vnode *)
682#define VNODESZ sizeof(struct vnode)
683
684	KGET(V_NUMV, numvnodes);
685	if ((vbuf = malloc((numvnodes + 20) * (VPTRSZ + VNODESZ))) == NULL)
686		err(1, NULL);
687	bp = vbuf;
688	evbuf = vbuf + (numvnodes + 20) * (VPTRSZ + VNODESZ);
689	KGET(V_MOUNTLIST, mountlist);
690	for (num = 0, mp = mountlist.tqh_first;
691	    mp != NULL; mp = mp->mnt_list.tqe_next) {
692		KGET2(mp, &mount, sizeof(mount), "mount entry");
693		for (vp = mount.mnt_vnodelist.lh_first;
694		    vp != NULL; vp = vp->v_mntvnodes.le_next) {
695			KGET2(vp, &vnode, sizeof(vnode), "vnode");
696			if ((bp + VPTRSZ + VNODESZ) > evbuf)
697				/* XXX - should realloc */
698				errx(1, "no more room for vnodes");
699			memmove(bp, &vp, VPTRSZ);
700			bp += VPTRSZ;
701			memmove(bp, &vnode, VNODESZ);
702			bp += VNODESZ;
703			num++;
704		}
705	}
706	*avnodes = num;
707	return ((struct e_vnode *)vbuf);
708}
709
710char hdr[]="  LINE RAW CAN OUT  HWT LWT     COL STATE  SESS  PGID DISC\n";
711int ttyspace = 128;
712
713void
714ttymode()
715{
716	struct tty *tty;
717
718	if ((tty = malloc(ttyspace * sizeof(*tty))) == NULL)
719		err(1, NULL);
720#ifndef hp300
721	(void)printf("1 console\n");
722	KGET(SCONS, *tty);
723	(void)printf(hdr);
724	ttyprt(&tty[0], 0);
725#endif
726#ifdef vax
727	if (nl[SNQD].n_type != 0)
728		qdss();
729	if (nl[SNDZ].n_type != 0)
730		ttytype(tty, "dz", SDZ, SNDZ);
731	if (nl[SNDH].n_type != 0)
732		ttytype(tty, "dh", SDH, SNDH);
733	if (nl[SNDMF].n_type != 0)
734		ttytype(tty, "dmf", SDMF, SNDMF);
735	if (nl[SNDHU].n_type != 0)
736		ttytype(tty, "dhu", SDHU, SNDHU);
737	if (nl[SNDMZ].n_type != 0)
738		ttytype(tty, "dmz", SDMZ, SNDMZ);
739#endif
740#ifdef tahoe
741	if (nl[SNVX].n_type != 0)
742		ttytype(tty, "vx", SVX, SNVX);
743	if (nl[SNMP].n_type != 0)
744		ttytype(tty, "mp", SMP, SNMP);
745#endif
746#ifdef hp300
747	if (nl[SNITE].n_type != 0)
748		ttytype(tty, "ite", SITE, SNITE);
749	if (nl[SNDCA].n_type != 0)
750		ttytype(tty, "dca", SDCA, SNDCA);
751	if (nl[SNDCM].n_type != 0)
752		ttytype(tty, "dcm", SDCM, SNDCM);
753	if (nl[SNDCL].n_type != 0)
754		ttytype(tty, "dcl", SDCL, SNDCL);
755#endif
756#ifdef mips
757	if (nl[SNDC].n_type != 0)
758		ttytype(tty, "dc", SDC, SNDC);
759#endif
760	if (nl[SNPTY].n_type != 0)
761		ttytype(tty, "pty", SPTY, SNPTY);
762}
763
764void
765ttytype(tty, name, type, number)
766	register struct tty *tty;
767	char *name;
768	int type, number;
769{
770	register struct tty *tp;
771	int ntty;
772
773	if (tty == NULL)
774		return;
775	KGET(number, ntty);
776	(void)printf("%d %s %s\n", ntty, name, (ntty == 1) ? "line" : "lines");
777	if (ntty > ttyspace) {
778		ttyspace = ntty;
779		if ((tty = realloc(tty, ttyspace * sizeof(*tty))) == 0)
780			err(1, NULL);
781	}
782	KGET1(type, tty, ntty * sizeof(struct tty), "tty structs");
783	(void)printf(hdr);
784	for (tp = tty; tp < &tty[ntty]; tp++)
785		ttyprt(tp, tp - tty);
786}
787
788struct {
789	int flag;
790	char val;
791} ttystates[] = {
792	{ TS_WOPEN,	'W'},
793	{ TS_ISOPEN,	'O'},
794	{ TS_CARR_ON,	'C'},
795	{ TS_TIMEOUT,	'T'},
796	{ TS_FLUSH,	'F'},
797	{ TS_BUSY,	'B'},
798	{ TS_ASLEEP,	'A'},
799	{ TS_XCLUDE,	'X'},
800	{ TS_TTSTOP,	'S'},
801	{ TS_TBLOCK,	'K'},
802	{ TS_ASYNC,	'Y'},
803	{ TS_BKSL,	'D'},
804	{ TS_ERASE,	'E'},
805	{ TS_LNCH,	'L'},
806	{ TS_TYPEN,	'P'},
807	{ TS_CNTTB,	'N'},
808	{ 0,	       '\0'},
809};
810
811void
812ttyprt(tp, line)
813	register struct tty *tp;
814	int line;
815{
816	register int i, j;
817	pid_t pgid;
818	char *name, state[20];
819
820	if (usenumflag || tp->t_dev == 0 ||
821	   (name = devname(tp->t_dev, S_IFCHR)) == NULL)
822		(void)printf("%7d ", line);
823	else
824		(void)printf("%7s ", name);
825	(void)printf("%2d %3d ", tp->t_rawq.c_cc, tp->t_canq.c_cc);
826	(void)printf("%3d %4d %3d %3d ", tp->t_outq.c_cc,
827		tp->t_hiwat, tp->t_lowat, tp->t_column);
828	for (i = j = 0; ttystates[i].flag; i++)
829		if (tp->t_state&ttystates[i].flag)
830			state[j++] = ttystates[i].val;
831	if (j == 0)
832		state[j++] = '-';
833	state[j] = '\0';
834	(void)printf("%-4s %6x", state, (u_long)tp->t_session & ~KERNBASE);
835	pgid = 0;
836	if (tp->t_pgrp != NULL)
837		KGET2(&tp->t_pgrp->pg_id, &pgid, sizeof(pid_t), "pgid");
838	(void)printf("%6d ", pgid);
839	switch (tp->t_line) {
840	case TTYDISC:
841		(void)printf("term\n");
842		break;
843	case TABLDISC:
844		(void)printf("tab\n");
845		break;
846	case SLIPDISC:
847		(void)printf("slip\n");
848		break;
849	default:
850		(void)printf("%d\n", tp->t_line);
851		break;
852	}
853}
854
855void
856filemode()
857{
858	register struct file *fp;
859	struct file *addr;
860	char *buf, flagbuf[16], *fbp;
861	int len, maxfile, nfile;
862	static char *dtypes[] = { "???", "inode", "socket" };
863
864	KGET(FNL_MAXFILE, maxfile);
865	if (totalflag) {
866		KGET(FNL_NFILE, nfile);
867		(void)printf("%3d/%3d files\n", nfile, maxfile);
868		return;
869	}
870	if (getfiles(&buf, &len) == -1)
871		return;
872	/*
873	 * Getfiles returns in malloc'd memory a pointer to the first file
874	 * structure, and then an array of file structs (whose addresses are
875	 * derivable from the previous entry).
876	 */
877	addr = *((struct file **)buf);
878	fp = (struct file *)(buf + sizeof(struct file *));
879	nfile = (len - sizeof(struct file *)) / sizeof(struct file);
880
881	(void)printf("%d/%d open files\n", nfile, maxfile);
882	(void)printf("   LOC   TYPE    FLG     CNT  MSG    DATA    OFFSET\n");
883	for (; (char *)fp < buf + len; addr = fp->f_filef, fp++) {
884		if ((unsigned)fp->f_type > DTYPE_SOCKET)
885			continue;
886		(void)printf("%x ", addr);
887		(void)printf("%-8.8s", dtypes[fp->f_type]);
888		fbp = flagbuf;
889		if (fp->f_flag & FREAD)
890			*fbp++ = 'R';
891		if (fp->f_flag & FWRITE)
892			*fbp++ = 'W';
893		if (fp->f_flag & FAPPEND)
894			*fbp++ = 'A';
895#ifdef FSHLOCK	/* currently gone */
896		if (fp->f_flag & FSHLOCK)
897			*fbp++ = 'S';
898		if (fp->f_flag & FEXLOCK)
899			*fbp++ = 'X';
900#endif
901		if (fp->f_flag & FASYNC)
902			*fbp++ = 'I';
903		*fbp = '\0';
904		(void)printf("%6s  %3d", flagbuf, fp->f_count);
905		(void)printf("  %3d", fp->f_msgcount);
906		(void)printf("  %8.1x", fp->f_data);
907		if (fp->f_offset < 0)
908			(void)printf("  %qx\n", fp->f_offset);
909		else
910			(void)printf("  %qd\n", fp->f_offset);
911	}
912	free(buf);
913}
914
915int
916getfiles(abuf, alen)
917	char **abuf;
918	int *alen;
919{
920	size_t len;
921	int mib[2];
922	char *buf;
923
924	/*
925	 * XXX
926	 * Add emulation of KINFO_FILE here.
927	 */
928	if (memf != NULL)
929		errx(1, "files on dead kernel, not implemented\n");
930
931	mib[0] = CTL_KERN;
932	mib[1] = KERN_FILE;
933	if (sysctl(mib, 2, NULL, &len, NULL, 0) == -1) {
934		warn("sysctl: KERN_FILE");
935		return (-1);
936	}
937	if ((buf = malloc(len)) == NULL)
938		err(1, NULL);
939	if (sysctl(mib, 2, buf, &len, NULL, 0) == -1) {
940		warn("sysctl: KERN_FILE");
941		return (-1);
942	}
943	*abuf = buf;
944	*alen = len;
945	return (0);
946}
947
948/*
949 * swapmode is based on a program called swapinfo written
950 * by Kevin Lahey <kml@rokkaku.atl.ga.us>.
951 */
952void
953swapmode()
954{
955	char *header;
956	int hlen, nswap, nswdev, dmmax, nswapmap, niswap, niswdev;
957	int s, e, div, i, l, avail, nfree, npfree, used;
958	struct swdevt *sw;
959	long blocksize, *perdev;
960	struct map *swapmap, *kswapmap;
961	struct mapent *mp;
962
963#if 0
964	KGET(VM_NSWAP, nswap);
965	KGET(VM_NSWDEV, nswdev);
966	KGET(VM_DMMAX, dmmax);
967	KGET(VM_NSWAPMAP, nswapmap);
968	KGET(VM_SWAPMAP, kswapmap);	/* kernel `swapmap' is a pointer */
969	if ((sw = malloc(nswdev * sizeof(*sw))) == NULL ||
970	    (perdev = malloc(nswdev * sizeof(*perdev))) == NULL ||
971	    (mp = malloc(nswapmap * sizeof(*mp))) == NULL)
972		err(1, "malloc");
973	KGET1(VM_SWDEVT, sw, nswdev * sizeof(*sw), "swdevt");
974	KGET2((long)kswapmap, mp, nswapmap * sizeof(*mp), "swapmap");
975
976	/* Supports sequential swap */
977	if (nl[VM_NISWAP].n_value != 0) {
978		KGET(VM_NISWAP, niswap);
979		KGET(VM_NISWDEV, niswdev);
980	} else {
981		niswap = nswap;
982		niswdev = nswdev;
983	}
984
985	/* First entry in map is `struct map'; rest are mapent's. */
986	swapmap = (struct map *)mp;
987	if (nswapmap != swapmap->m_limit - (struct mapent *)kswapmap)
988		errx(1, "panic: nswapmap goof");
989
990	/* Count up swap space. */
991	nfree = 0;
992	memset(perdev, 0, nswdev * sizeof(*perdev));
993	for (mp++; mp->m_addr != 0; mp++) {
994		s = mp->m_addr;			/* start of swap region */
995		e = mp->m_addr + mp->m_size;	/* end of region */
996		nfree += mp->m_size;
997
998		/*
999		 * Swap space is split up among the configured disks.
1000		 *
1001		 * For interleaved swap devices, the first dmmax blocks
1002		 * of swap space some from the first disk, the next dmmax
1003		 * blocks from the next, and so on up to niswap blocks.
1004		 *
1005		 * Sequential swap devices follow the interleaved devices
1006		 * (i.e. blocks starting at niswap) in the order in which
1007		 * they appear in the swdev table.  The size of each device
1008		 * will be a multiple of dmmax.
1009		 *
1010		 * The list of free space joins adjacent free blocks,
1011		 * ignoring device boundries.  If we want to keep track
1012		 * of this information per device, we'll just have to
1013		 * extract it ourselves.  We know that dmmax-sized chunks
1014		 * cannot span device boundaries (interleaved or sequential)
1015		 * so we loop over such chunks assigning them to devices.
1016		 */
1017		i = -1;
1018		while (s < e) {		/* XXX this is inefficient */
1019			int bound = roundup(s+1, dmmax);
1020
1021			if (bound > e)
1022				bound = e;
1023			if (bound <= niswap) {
1024				/* Interleaved swap chunk. */
1025				if (i == -1)
1026					i = (s / dmmax) % niswdev;
1027				perdev[i] += bound - s;
1028				if (++i >= niswdev)
1029					i = 0;
1030			} else {
1031				/* Sequential swap chunk. */
1032				if (i < niswdev) {
1033					i = niswdev;
1034					l = niswap + sw[i].sw_nblks;
1035				}
1036				while (s >= l) {
1037					/* XXX don't die on bogus blocks */
1038					if (i == nswdev-1)
1039						break;
1040					l += sw[++i].sw_nblks;
1041				}
1042				perdev[i] += bound - s;
1043			}
1044			s = bound;
1045		}
1046	}
1047
1048	header = getbsize(&hlen, &blocksize);
1049	if (!totalflag)
1050		(void)printf("%-11s %*s %8s %8s %8s  %s\n",
1051		    "Device", hlen, header,
1052		    "Used", "Avail", "Capacity", "Type");
1053	div = blocksize / 512;
1054	avail = npfree = 0;
1055	for (i = 0; i < nswdev; i++) {
1056		int xsize, xfree;
1057
1058		if (!totalflag)
1059			(void)printf("/dev/%-6s %*d ",
1060			    devname(sw[i].sw_dev, S_IFBLK),
1061			    hlen, sw[i].sw_nblks / div);
1062
1063		/*
1064		 * Don't report statistics for partitions which have not
1065		 * yet been activated via swapon(8).
1066		 */
1067		if (!(sw[i].sw_flags & SW_FREED)) {
1068			if (totalflag)
1069				continue;
1070			(void)printf(" *** not available for swapping ***\n");
1071			continue;
1072		}
1073		xsize = sw[i].sw_nblks;
1074		xfree = perdev[i];
1075		used = xsize - xfree;
1076		npfree++;
1077		avail += xsize;
1078		if (totalflag)
1079			continue;
1080		(void)printf("%8d %8d %5.0f%%    %s\n",
1081		    used / div, xfree / div,
1082		    (double)used / (double)xsize * 100.0,
1083		    (sw[i].sw_flags & SW_SEQUENTIAL) ?
1084			     "Sequential" : "Interleaved");
1085	}
1086
1087	/*
1088	 * If only one partition has been set up via swapon(8), we don't
1089	 * need to bother with totals.
1090	 */
1091	used = avail - nfree;
1092	if (totalflag) {
1093		(void)printf("%dM/%dM swap space\n", used / 2048, avail / 2048);
1094		return;
1095	}
1096	if (npfree > 1) {
1097		(void)printf("%-11s %*d %8d %8d %5.0f%%\n",
1098		    "Total", hlen, avail / div, used / div, nfree / div,
1099		    (double)used / (double)avail * 100.0);
1100	}
1101#endif
1102}
1103
1104void
1105usage()
1106{
1107	(void)fprintf(stderr,
1108	    "usage: pstat -Tfnstv [system] [-M core] [-N system]\n");
1109	exit(1);
1110}
1111