projects / unix-history / blob
? search:
summary | tags | clone url | shortlog | log | commit | commitdiff | tree
blame | history | raw | HEAD
BSD 4_3_Net_2 release
[unix-history] / usr / src / usr.bin / fstat / fstat.c
/*-
* Copyright (c) 1988 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
char copyright[] =
"@(#) Copyright (c) 1988 The Regents of the University of California.\n\
All rights reserved.\n";
#endif /* not lint */
#ifndef lint
static char sccsid[] = "@(#)fstat.c 5.32 (Berkeley) 6/17/91";
#endif /* not lint */
/*
* fstat
*/
#include <sys/param.h>
#include <sys/time.h>
#include <sys/proc.h>
#include <sys/user.h>
#ifdef SPPWAIT
#define NEWVM
#endif
#ifndef NEWVM
#include <machine/pte.h>
#include <sys/vmmac.h>
#endif
#include <sys/stat.h>
#include <sys/vnode.h>
#include <sys/socket.h>
#include <sys/socketvar.h>
#include <sys/domain.h>
#include <sys/protosw.h>
#include <sys/unpcb.h>
#include <sys/kinfo.h>
#include <sys/filedesc.h>
#define KERNEL
#define NFS
#include <sys/file.h>
#include <sys/mount.h>
#include <ufs/quota.h>
#include <ufs/inode.h>
#include <nfs/nfsv2.h>
#include <nfs/nfs.h>
#include <nfs/nfsnode.h>
#undef KERNEL
#include <net/route.h>
#include <netinet/in.h>
#include <netinet/in_systm.h>
#include <netinet/ip.h>
#include <netinet/in_pcb.h>
#include <errno.h>
#include <nlist.h>
#include <kvm.h>
#include <pwd.h>
#include <stdio.h>
#include <paths.h>
#include <ctype.h>
#include <stdlib.h>
#include <string.h>
#define TEXT -1
#define CDIR -2
#define RDIR -3
#define TRACE -4
typedef struct devs {
struct devs *next;
long fsid;
ino_t ino;
char *name;
} DEVS;
DEVS *devs;
struct filestat {
long fsid;
long fileid;
mode_t mode;
u_long size;
dev_t rdev;
};
#ifdef notdef
struct nlist nl[] = {
{ "" },
};
#endif
int fsflg, /* show files on same filesystem as file(s) argument */
pflg, /* show files open by a particular pid */
uflg; /* show files open by a particular (effective) user */
int checkfile; /* true if restricting to particular files or filesystems */
int nflg; /* (numerical) display f.s. and rdev as dev_t */
int vflg; /* display errors in locating kernel data objects etc... */
#define dprintf if (vflg) fprintf
struct file **ofiles; /* buffer of pointers to file structures */
int maxfiles;
#define ALLOC_OFILES(d) \
if ((d) > maxfiles) { \
free(ofiles); \
ofiles = malloc((d) * sizeof(struct file *)); \
if (ofiles == NULL) { \
fprintf(stderr, "fstat: %s\n", strerror(errno)); \
exit(1); \
} \
maxfiles = (d); \
}
/*
* a kvm_read that returns true if everything is read
*/
#define KVM_READ(kaddr, paddr, len) (kvm_read((kaddr), (paddr), (len)) == (len))
void dofiles(), getinetproto(), socktrans(), nfs_filestat(), ufs_filestat();
void usage(), vtrans();
main(argc, argv)
int argc;
char **argv;
{
extern char *optarg;
extern int optind;
register struct passwd *passwd;
struct proc *p;
int arg, ch, what;
char *namelist = NULL, *memfile = NULL;
arg = 0;
what = KINFO_PROC_ALL;
while ((ch = getopt(argc, argv, "fnp:u:vNM")) != EOF)
switch((char)ch) {
case 'f':
fsflg = 1;
break;
case 'n':
nflg = 1;
break;
case 'p':
if (pflg++)
usage();
if (!isdigit(*optarg)) {
fprintf(stderr,
"fstat: -p requires a process id\n");
usage();
}
what = KINFO_PROC_PID;
arg = atoi(optarg);
break;
case 'u':
if (uflg++)
usage();
if (!(passwd = getpwnam(optarg))) {
fprintf(stderr, "%s: unknown uid\n",
optarg);
exit(1);
}
what = KINFO_PROC_UID;
arg = passwd->pw_uid;
break;
case 'v':
vflg = 1;
break;
case 'N':
namelist = optarg;
break;
case 'M':
memfile = optarg;
break;
case '?':
default:
usage();
}
if (*(argv += optind)) {
for (; *argv; ++argv) {
if (getfname(*argv))
checkfile = 1;
}
if (!checkfile) /* file(s) specified, but none accessable */
exit(1);
}
ALLOC_OFILES(256); /* reserve space for file pointers */
if (fsflg && !checkfile) {
/* -f with no files means use wd */
if (getfname(".") == 0)
exit(1);
checkfile = 1;
}
if (kvm_openfiles(namelist, memfile, NULL) == -1) {
fprintf(stderr, "fstat: %s\n", kvm_geterr());
exit(1);
}
#ifdef notdef
if (kvm_nlist(nl) != 0) {
fprintf(stderr, "fstat: no namelist: %s\n", kvm_geterr());
exit(1);
}
#endif
if (kvm_getprocs(what, arg) == -1) {
fprintf(stderr, "fstat: %s\n", kvm_geterr());
exit(1);
}
if (nflg)
printf("%s",
"USER CMD PID FD DEV INUM MODE SZ|DV");
else
printf("%s",
"USER CMD PID FD MOUNT INUM MODE SZ|DV");
if (checkfile && fsflg == 0)
printf(" NAME\n");
else
putchar('\n');
while ((p = kvm_nextproc()) != NULL) {
if (p->p_stat == SZOMB)
continue;
dofiles(p);
}
exit(0);
}
char *Uname, *Comm;
int Pid;
#define PREFIX(i) printf("%-8.8s %-10s %5d", Uname, Comm, Pid); \
switch(i) { \
case TEXT: \
printf(" text"); \
break; \
case CDIR: \
printf(" wd"); \
break; \
case RDIR: \
printf(" root"); \
break; \
case TRACE: \
printf(" tr"); \
break; \
default: \
printf(" %4d", i); \
break; \
}
/*
* print open files attributed to this process
*/
void
dofiles(p)
struct proc *p;
{
int i, last;
struct file file;
#ifdef NEWVM
struct filedesc0 filed0;
#define filed filed0.fd_fd
struct eproc *ep;
#else
struct filedesc filed;
#endif
extern char *user_from_uid();
#ifndef NEWVM
struct vnode *xvptr;
#endif
#ifdef NEWVM
ep = kvm_geteproc(p);
Uname = user_from_uid(ep->e_ucred.cr_uid, 0);
#else
Uname = user_from_uid(p->p_uid, 0);
#endif
Pid = p->p_pid;
Comm = p->p_comm;
if (p->p_fd == NULL)
return;
#ifdef NEWVM
if (!KVM_READ(p->p_fd, &filed0, sizeof (filed0))) {
dprintf(stderr, "can't read filedesc at %x for pid %d\n",
p->p_fd, Pid);
return;
}
#else
if (!KVM_READ(p->p_fd, &filed, sizeof (filed))) {
dprintf(stderr, "can't read filedesc at %x for pid %d\n",
p->p_fd, Pid);
return;
}
#endif
/*
* root directory vnode, if one
*/
if (filed.fd_rdir)
vtrans(filed.fd_rdir, RDIR);
#ifndef NEWVM
/*
* text vnode
*/
if (p->p_textp &&
KVM_READ(&(p->p_textp->x_vptr), &xvptr, sizeof (struct vnode *)) &&
xvptr != NULL)
vtrans(xvptr, TEXT);
#endif
/*
* current working directory vnode
*/
vtrans(filed.fd_cdir, CDIR);
/*
* ktrace vnode, if one
*/
if (p->p_tracep)
vtrans(p->p_tracep, TRACE);
/*
* open files
*/
#define FPSIZE (sizeof (struct file *))
ALLOC_OFILES(filed.fd_lastfile);
#ifdef NEWVM
if (filed.fd_nfiles > NDFILE) {
if (!KVM_READ(filed.fd_ofiles, ofiles,
filed.fd_lastfile * FPSIZE)) {
dprintf(stderr,
"can't read file structures at %x for pid %d\n",
filed.fd_ofiles, Pid);
return;
}
} else
bcopy(filed0.fd_dfiles, ofiles, filed.fd_lastfile * FPSIZE);
#else
bcopy(filed.fd_ofile, ofiles, MIN(filed.fd_lastfile, NDFILE) * FPSIZE);
last = filed.fd_lastfile;
if ((last > NDFILE) && !KVM_READ(filed.fd_moreofiles, &ofiles[NDFILE],
(last - NDFILE) * FPSIZE)) {
dprintf(stderr, "can't read rest of files at %x for pid %d\n",
filed.fd_moreofiles, Pid);
return;
}
#endif
for (i = 0; i <= filed.fd_lastfile; i++) {
if (ofiles[i] == NULL)
continue;
if (!KVM_READ(ofiles[i], &file, sizeof (struct file))) {
dprintf(stderr, "can't read file %d at %x for pid %d\n",
i, ofiles[i], Pid);
continue;
}
if (file.f_type == DTYPE_VNODE)
vtrans((struct vnode *)file.f_data, i);
else if (file.f_type == DTYPE_SOCKET && checkfile == 0)
socktrans((struct socket *)file.f_data, i);
else {
dprintf(stderr,
"unknown file type %d for file %d of pid %d\n",
file.f_type, i, Pid);
}
}
}
void
vtrans(vp, i)
struct vnode *vp;
int i;
{
extern char *devname();
struct vnode vn;
struct filestat fst;
char mode[15];
char *badtype, *filename, *getmnton();
filename = badtype = NULL;
if (!KVM_READ(vp, &vn, sizeof (struct vnode))) {
dprintf(stderr, "can't read vnode at %x for pid %d\n",
vp, Pid);
return;
}
if (vn.v_type == VNON || vn.v_tag == VT_NON)
badtype = "none";
else if (vn.v_type == VBAD)
badtype = "bad";
else
switch (vn.v_tag) {
case VT_UFS:
ufs_filestat(&vn, &fst);
break;
case VT_MFS:
ufs_filestat(&vn, &fst);
break;
case VT_NFS:
nfs_filestat(&vn, &fst);
break;
default: {
static char unknown[10];
sprintf(badtype = unknown, "?(%x)", vn.v_tag);
break;;
}
}
if (checkfile) {
int fsmatch = 0;
register DEVS *d;
if (badtype)
return;
for (d = devs; d != NULL; d = d->next)
if (d->fsid == fst.fsid) {
fsmatch = 1;
if (d->ino == fst.fileid) {
filename = d->name;
break;
}
}
if (fsmatch == 0 || (filename == NULL && fsflg == 0))
return;
}
PREFIX(i);
if (badtype) {
(void)printf(" - - %10s -\n", badtype);
return;
}
if (nflg)
(void)printf(" %2d,%-2d", major(fst.fsid), minor(fst.fsid));
else
(void)printf(" %-8s", getmnton(vn.v_mount));
if (nflg)
(void)sprintf(mode, "%o", fst.mode);
else
strmode(fst.mode, mode);
(void)printf(" %6d %10s", fst.fileid, mode);
switch (vn.v_type) {
case VBLK:
case VCHR: {
char *name;
if (nflg || ((name = devname(fst.rdev, vn.v_type == VCHR ?
S_IFCHR : S_IFBLK)) == NULL))
printf(" %2d,%-2d", major(fst.rdev), minor(fst.rdev));
else
printf(" %6s", name);
break;
}
default:
printf(" %6d", fst.size);
}
if (filename && !fsflg)
printf(" %s", filename);
putchar('\n');
}
void
ufs_filestat(vp, fsp)
struct vnode *vp;
struct filestat *fsp;
{
struct inode *ip = VTOI(vp);
fsp->fsid = ip->i_dev & 0xffff;
fsp->fileid = (long)ip->i_number;
fsp->mode = (mode_t)ip->i_mode;
fsp->size = (u_long)ip->i_size;
fsp->rdev = ip->i_rdev;
}
void
nfs_filestat(vp, fsp)
struct vnode *vp;
struct filestat *fsp;
{
register struct nfsnode *np = VTONFS(vp);
register mode_t mode;
fsp->fsid = np->n_vattr.va_fsid;
fsp->fileid = np->n_vattr.va_fileid;
fsp->size = np->n_size;
fsp->rdev = np->n_vattr.va_rdev;
mode = (mode_t)np->n_vattr.va_mode;
switch (vp->v_type) {
case VREG:
mode |= S_IFREG;
break;
case VDIR:
mode |= S_IFDIR;
break;
case VBLK:
mode |= S_IFBLK;
break;
case VCHR:
mode |= S_IFCHR;
break;
case VLNK:
mode |= S_IFLNK;
break;
case VSOCK:
mode |= S_IFSOCK;
break;
case VFIFO:
mode |= S_IFIFO;
break;
};
fsp->mode = mode;
}
char *
getmnton(m)
struct mount *m;
{
static struct mount mount;
static struct mtab {
struct mtab *next;
struct mount *m;
char mntonname[MNAMELEN];
} *mhead = NULL;
register struct mtab *mt;
for (mt = mhead; mt != NULL; mt = mt->next)
if (m == mt->m)
return (mt->mntonname);
if (!KVM_READ(m, &mount, sizeof(struct mount))) {
fprintf(stderr, "can't read mount table at %x\n", m);
return (NULL);
}
if ((mt = malloc(sizeof (struct mtab))) == NULL) {
fprintf(stderr, "fstat: %s\n", strerror(errno));
exit(1);
}
mt->m = m;
bcopy(&mount.mnt_stat.f_mntonname[0], &mt->mntonname[0], MNAMELEN);
mt->next = mhead;
mhead = mt;
return (mt->mntonname);
}
void
socktrans(sock, i)
struct socket *sock;
int i;
{
static char *stypename[] = {
"unused", /* 0 */
"stream", /* 1 */
"dgram", /* 2 */
"raw", /* 3 */
"rdm", /* 4 */
"seqpak" /* 5 */
};
#define STYPEMAX 5
struct socket so;
struct protosw proto;
struct domain dom;
struct inpcb inpcb;
struct unpcb unpcb;
int len;
char dname[32], *strcpy();
PREFIX(i);
/* fill in socket */
if (!KVM_READ(sock, &so, sizeof(struct socket))) {
dprintf(stderr, "can't read sock at %x\n", sock);
goto bad;
}
/* fill in protosw entry */
if (!KVM_READ(so.so_proto, &proto, sizeof(struct protosw))) {
dprintf(stderr, "can't read protosw at %x", so.so_proto);
goto bad;
}
/* fill in domain */
if (!KVM_READ(proto.pr_domain, &dom, sizeof(struct domain))) {
dprintf(stderr, "can't read domain at %x\n", proto.pr_domain);
goto bad;
}
if ((len =
kvm_read(dom.dom_name, dname, sizeof(dname) - 1)) < 0) {
dprintf(stderr, "can't read domain name at %x\n",
dom.dom_name);
dname[0] = '\0';
}
else
dname[len] = '\0';
if ((u_short)so.so_type > STYPEMAX)
printf("* %s ?%d", dname, so.so_type);
else
printf("* %s %s", dname, stypename[so.so_type]);
/*
* protocol specific formatting
*
* Try to find interesting things to print. For tcp, the interesting
* thing is the address of the tcpcb, for udp and others, just the
* inpcb (socket pcb). For unix domain, its the address of the socket
* pcb and the address of the connected pcb (if connected). Otherwise
* just print the protocol number and address of the socket itself.
* The idea is not to duplicate netstat, but to make available enough
* information for further analysis.
*/
switch(dom.dom_family) {
case AF_INET:
getinetproto(proto.pr_protocol);
if (proto.pr_protocol == IPPROTO_TCP ) {
if (so.so_pcb) {
if (kvm_read(so.so_pcb, &inpcb,
sizeof(struct inpcb))
!= sizeof(struct inpcb)) {
dprintf(stderr,
"can't read inpcb at %x\n",
so.so_pcb);
goto bad;
}
printf(" %x", (int)inpcb.inp_ppcb);
}
}
else if (so.so_pcb)
printf(" %x", (int)so.so_pcb);
break;
case AF_UNIX:
/* print address of pcb and connected pcb */
if (so.so_pcb) {
printf(" %x", (int)so.so_pcb);
if (kvm_read(so.so_pcb, &unpcb,
sizeof(struct unpcb)) != sizeof(struct unpcb)){
dprintf(stderr, "can't read unpcb at %x\n",
so.so_pcb);
goto bad;
}
if (unpcb.unp_conn) {
char shoconn[4], *cp;
cp = shoconn;
if (!(so.so_state & SS_CANTRCVMORE))
*cp++ = '<';
*cp++ = '-';
if (!(so.so_state & SS_CANTSENDMORE))
*cp++ = '>';
*cp = '\0';
printf(" %s %x", shoconn,
(int)unpcb.unp_conn);
}
}
break;
default:
/* print protocol number and socket address */
printf(" %d %x", proto.pr_protocol, (int)sock);
}
printf("\n");
return;
bad:
printf("* error\n");
}
/*
* getinetproto --
* print name of protocol number
*/
void
getinetproto(number)
int number;
{
char *cp;
switch(number) {
case IPPROTO_IP:
cp = "ip"; break;
case IPPROTO_ICMP:
cp ="icmp"; break;
case IPPROTO_GGP:
cp ="ggp"; break;
case IPPROTO_TCP:
cp ="tcp"; break;
case IPPROTO_EGP:
cp ="egp"; break;
case IPPROTO_PUP:
cp ="pup"; break;
case IPPROTO_UDP:
cp ="udp"; break;
case IPPROTO_IDP:
cp ="idp"; break;
case IPPROTO_RAW:
cp ="raw"; break;
default:
printf(" %d", number);
return;
}
printf(" %s", cp);
}
getfname(filename)
char *filename;
{
struct stat statbuf;
DEVS *cur;
if (stat(filename, &statbuf)) {
fprintf(stderr, "fstat: %s: %s\n", strerror(errno),
filename);
return(0);
}
if ((cur = malloc(sizeof(DEVS))) == NULL) {
fprintf(stderr, "fstat: %s\n", strerror(errno));
exit(1);
}
cur->next = devs;
devs = cur;
cur->ino = statbuf.st_ino;
cur->fsid = statbuf.st_dev & 0xffff;
cur->name = filename;
return(1);
}
void
usage()
{
(void)fprintf(stderr,
"usage: fstat [-fnv] [-p pid] [-u user] [-N system] [-M core] [file ...]\n");
exit(1);
}
Continuous source code history from original PDP-7 UNIX to FreeBSD 2, the first fully unencumbered FreeBSD release.