1419 lines
32 KiB
C
1419 lines
32 KiB
C
/* $NetBSD: fstat.c,v 1.114 2020/08/26 23:08:29 christos Exp $ */
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/*-
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* Copyright (c) 1988, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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#ifndef lint
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__COPYRIGHT("@(#) Copyright (c) 1988, 1993\
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The Regents of the University of California. All rights reserved.");
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#endif /* not lint */
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#ifndef lint
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#if 0
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static char sccsid[] = "@(#)fstat.c 8.3 (Berkeley) 5/2/95";
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#else
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__RCSID("$NetBSD: fstat.c,v 1.114 2020/08/26 23:08:29 christos Exp $");
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#endif
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#endif /* not lint */
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#include <sys/types.h>
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#include <sys/param.h>
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#include <sys/time.h>
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#include <sys/proc.h>
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#include <sys/stat.h>
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#include <sys/vnode.h>
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#include <sys/socket.h>
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#include <sys/socketvar.h>
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#include <sys/domain.h>
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#include <sys/protosw.h>
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#include <sys/unpcb.h>
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#include <sys/sysctl.h>
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#include <sys/filedesc.h>
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#include <sys/pipe.h>
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#define _KERNEL
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#include <sys/mount.h>
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#undef _KERNEL
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#define _KERNEL
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#include <sys/file.h>
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#include <ufs/ufs/inode.h>
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#include <ufs/ufs/ufsmount.h>
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#undef _KERNEL
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#define NFS
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#include <nfs/nfsproto.h>
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#include <nfs/rpcv2.h>
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#include <nfs/nfs.h>
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#include <nfs/nfsnode.h>
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#undef NFS
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#include <msdosfs/denode.h>
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#include <msdosfs/bpb.h>
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#define _KERNEL
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#include <msdosfs/msdosfsmount.h>
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#undef _KERNEL
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#define _KERNEL
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#include <miscfs/genfs/layer.h>
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#undef _KERNEL
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#include <net/route.h>
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#include <netinet/in.h>
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#include <netinet/in_systm.h>
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#include <netinet/ip.h>
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#include <netinet/in_pcb.h>
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#ifdef INET6
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#include <netinet/ip6.h>
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#include <netinet6/in6.h>
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#include <netinet6/ip6_var.h>
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#include <netinet6/in6_pcb.h>
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#endif
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#include <netatalk/at.h>
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#include <netatalk/ddp_var.h>
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#include <netdb.h>
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#include <arpa/inet.h>
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#include <ctype.h>
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#include <errno.h>
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#include <kvm.h>
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#include <limits.h>
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#include <nlist.h>
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#include <paths.h>
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#include <pwd.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include <err.h>
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#include <util.h>
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#include "fstat.h"
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#define TEXT -1
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#define CDIR -2
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#define RDIR -3
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#define TRACE -4
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typedef struct devs {
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struct devs *next;
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long fsid;
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ino_t ino;
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const char *name;
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} DEVS;
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static DEVS *devs;
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static int fsflg, /* show files on same filesystem as file(s) argument */
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pflg, /* show files open by a particular pid */
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uflg; /* show files open by a particular (effective) user */
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static int checkfile; /* true if restricting to particular files or filesystems */
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static int nflg; /* (numerical) display f.s. and rdev as dev_t */
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static int Aflg; /* prefix with address of file structure */
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static int Oflg; /* print offset instead of size */
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int vflg; /* display errors in locating kernel data objects etc... */
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static fdfile_t **ofiles; /* buffer of pointers to file structures */
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static int fstat_maxfiles;
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#define ALLOC_OFILES(d) \
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if ((d) > fstat_maxfiles) { \
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size_t len = (d) * sizeof(fdfile_t *); \
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free(ofiles); \
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ofiles = malloc(len); \
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if (ofiles == NULL) { \
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err(1, "malloc(%zu)", len); \
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} \
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fstat_maxfiles = (d); \
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}
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kvm_t *kd;
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static const char *const dtypes[] = {
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DTYPE_NAMES
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};
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static void dofiles(struct kinfo_proc2 *);
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static int ext2fs_filestat(struct vnode *, struct filestat *);
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static int getfname(const char *);
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static void getinetproto(char *, size_t, int);
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static void getatproto(char *, size_t, int);
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static char *getmnton(struct mount *);
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static const char *layer_filestat(struct vnode *, struct filestat *);
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static int msdosfs_filestat(struct vnode *, struct filestat *);
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static int nfs_filestat(struct vnode *, struct filestat *);
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static const char *inet_addrstr(char *, size_t, const struct in_addr *,
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uint16_t, bool);
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#ifdef INET6
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static const char *inet6_addrstr(char *, size_t, const struct in6_addr *,
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uint16_t, bool);
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#endif
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static const char *at_addrstr(char *, size_t, const struct sockaddr_at *);
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static void socktrans(struct file *, struct socket *, int);
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static void misctrans(struct file *, int);
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static int ufs_filestat(struct vnode *, struct filestat *);
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static void usage(void) __dead;
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static const char *vfilestat(struct vnode *, struct filestat *);
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static void vtrans(struct file *, struct vnode *, int, int, long);
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static void ftrans(fdfile_t *, int);
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static void ptrans(struct file *, struct pipe *, int);
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static void kdriver_init(void);
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static void check_privs(void);
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int
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main(int argc, char **argv)
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{
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struct passwd *passwd;
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struct kinfo_proc2 *p, *plast;
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int arg, ch, what;
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char *memf, *nlistf;
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char buf[_POSIX2_LINE_MAX];
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int cnt;
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gid_t egid = getegid();
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(void)setegid(getgid());
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arg = 0;
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what = KERN_PROC_ALL;
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nlistf = memf = NULL;
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while ((ch = getopt(argc, argv, "fnAOp:u:vN:M:")) != -1)
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switch((char)ch) {
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case 'f':
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fsflg = 1;
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break;
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case 'M':
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memf = optarg;
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break;
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case 'N':
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nlistf = optarg;
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break;
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case 'n':
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nflg = 1;
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break;
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case 'A':
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Aflg = 1;
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break;
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case 'O':
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Oflg = 1;
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break;
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case 'p':
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if (pflg++)
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usage();
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if (!isdigit((unsigned char)*optarg)) {
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warnx("-p requires a process id");
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usage();
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}
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what = KERN_PROC_PID;
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arg = atoi(optarg);
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break;
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case 'u':
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if (uflg++)
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usage();
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if (!(passwd = getpwnam(optarg))) {
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errx(1, "%s: unknown uid", optarg);
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}
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what = KERN_PROC_UID;
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arg = passwd->pw_uid;
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break;
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case 'v':
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vflg = 1;
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break;
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case '?':
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default:
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usage();
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}
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check_privs();
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kdriver_init();
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if (*(argv += optind)) {
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for (; *argv; ++argv) {
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if (getfname(*argv))
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checkfile = 1;
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}
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if (!checkfile) /* file(s) specified, but none accessible */
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exit(1);
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}
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ALLOC_OFILES(256); /* reserve space for file pointers */
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if (fsflg && !checkfile) {
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/* -f with no files means use wd */
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if (getfname(".") == 0)
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exit(1);
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checkfile = 1;
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}
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/*
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* Discard setgid privileges. If not the running kernel, we toss
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* them away totally so that bad guys can't print interesting stuff
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* from kernel memory, otherwise switch back to kmem for the
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* duration of the kvm_openfiles() call.
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*/
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if (nlistf != NULL || memf != NULL)
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(void)setgid(getgid());
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else
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(void)setegid(egid);
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if ((kd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY, buf)) == NULL)
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errx(1, "%s", buf);
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/* get rid of it now anyway */
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if (nlistf == NULL && memf == NULL)
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(void)setgid(getgid());
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if ((p = kvm_getproc2(kd, what, arg, sizeof *p, &cnt)) == NULL) {
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errx(1, "%s", kvm_geterr(kd));
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}
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if (Aflg)
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(void)printf("%-*s ", 2*(int)(sizeof(void*)), "ADDR");
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if (nflg)
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(void)printf(
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"USER CMD PID FD DEV INUM MODE %s R/W",
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Oflg ? " OFFS" : "SZ|DV" );
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else
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(void)printf(
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"USER CMD PID FD MOUNT INUM MODE %s R/W",
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Oflg ? " OFFS" : "SZ|DV" );
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if (checkfile && fsflg == 0)
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(void)printf(" NAME\n");
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else
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(void)putchar('\n');
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for (plast = &p[cnt]; p < plast; ++p) {
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if (p->p_stat == SZOMB)
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continue;
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dofiles(p);
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}
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return 0;
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}
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static void
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check_privs(void)
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{
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int expaddr;
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size_t expsize = sizeof(expaddr);
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const char *expname = "kern.expose_address";
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if (geteuid() == 0)
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return;
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if (sysctlbyname(expname, &expaddr, &expsize, NULL, 0) == -1)
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err(EXIT_FAILURE, "Can't get sysctl `%s'", expname);
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if (expaddr == 0)
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errx(EXIT_FAILURE, "This program does not work without "
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"sysctl `%s' being set", expname);
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}
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static const char *Uname, *Comm;
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pid_t Pid;
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#define PREFIX(i) (void)printf("%-8.8s %-10s %5d", Uname, Comm, Pid); \
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switch(i) { \
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case TEXT: \
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(void)printf(" text"); \
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break; \
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case CDIR: \
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(void)printf(" wd"); \
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break; \
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case RDIR: \
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(void)printf(" root"); \
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break; \
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case TRACE: \
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(void)printf(" tr"); \
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break; \
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default: \
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(void)printf(" %4d", i); \
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break; \
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}
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static struct kinfo_drivers *kdriver;
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static size_t kdriverlen;
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static int
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kdriver_comp(const void *a, const void *b)
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{
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const struct kinfo_drivers *ka = a;
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const struct kinfo_drivers *kb = b;
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int kac = ka->d_cmajor == -1 ? 0 : ka->d_cmajor;
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int kbc = kb->d_cmajor == -1 ? 0 : kb->d_cmajor;
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int kab = ka->d_bmajor == -1 ? 0 : ka->d_bmajor;
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int kbb = kb->d_bmajor == -1 ? 0 : kb->d_bmajor;
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int c = kac - kbc;
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if (c == 0)
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return kab - kbb;
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else
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return c;
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}
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static const char *
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kdriver_search(int type, dev_t num)
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{
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struct kinfo_drivers k, *kp;
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static char buf[64];
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if (nflg)
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goto out;
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if (type == VBLK) {
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k.d_bmajor = num;
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k.d_cmajor = -1;
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} else {
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k.d_bmajor = -1;
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k.d_cmajor = num;
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}
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kp = bsearch(&k, kdriver, kdriverlen, sizeof(*kdriver), kdriver_comp);
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if (kp)
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return kp->d_name;
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out:
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snprintf(buf, sizeof(buf), "%llu", (unsigned long long)num);
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return buf;
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}
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static void
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kdriver_init(void)
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{
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size_t sz;
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int error;
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static const int name[2] = { CTL_KERN, KERN_DRIVERS };
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error = sysctl(name, __arraycount(name), NULL, &sz, NULL, 0);
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if (error == -1) {
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warn("sysctl kern.drivers");
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return;
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}
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if (sz % sizeof(*kdriver)) {
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warnx("bad size %zu for kern.drivers", sz);
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return;
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}
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kdriver = malloc(sz);
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if (kdriver == NULL) {
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warn("malloc");
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return;
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}
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error = sysctl(name, __arraycount(name), kdriver, &sz, NULL, 0);
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if (error == -1) {
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warn("sysctl kern.drivers");
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return;
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}
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kdriverlen = sz / sizeof(*kdriver);
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qsort(kdriver, kdriverlen, sizeof(*kdriver), kdriver_comp);
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#ifdef DEBUG
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for (size_t i = 0; i < kdriverlen; i++)
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printf("%d %d %s\n", kdriver[i].d_cmajor, kdriver[i].d_bmajor,
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kdriver[i].d_name);
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#endif
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}
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/*
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* print open files attributed to this process
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*/
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static void
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dofiles(struct kinfo_proc2 *p)
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{
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int i;
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struct filedesc filed;
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struct cwdinfo cwdi;
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struct fdtab dt;
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Uname = user_from_uid(p->p_uid, 0);
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Pid = p->p_pid;
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Comm = p->p_comm;
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if (p->p_fd == 0 || p->p_cwdi == 0)
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return;
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if (!KVM_READ(p->p_fd, &filed, sizeof (filed))) {
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warnx("can't read filedesc at %p for pid %d",
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(void *)(uintptr_t)p->p_fd, Pid);
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return;
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}
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if (filed.fd_lastfile == -1)
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return;
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if (!KVM_READ(p->p_cwdi, &cwdi, sizeof(cwdi))) {
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warnx("can't read cwdinfo at %p for pid %d",
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(void *)(uintptr_t)p->p_cwdi, Pid);
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return;
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}
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if (!KVM_READ(filed.fd_dt, &dt, sizeof(dt))) {
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warnx("can't read dtab at %p for pid %d", filed.fd_dt, Pid);
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return;
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}
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if ((unsigned)filed.fd_lastfile >= dt.dt_nfiles ||
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filed.fd_freefile > filed.fd_lastfile + 1) {
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dprintf("filedesc corrupted at %p for pid %d",
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(void *)(uintptr_t)p->p_fd, Pid);
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return;
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}
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/*
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* root directory vnode, if one
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*/
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if (cwdi.cwdi_rdir)
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vtrans(NULL, cwdi.cwdi_rdir, RDIR, FREAD, (long)cwdi.cwdi_rdir);
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/*
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* current working directory vnode
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*/
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vtrans(NULL, cwdi.cwdi_cdir, CDIR, FREAD, (long)cwdi.cwdi_cdir);
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#if 0
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/*
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* Disable for now, since p->p_tracep appears to point to a ktr_desc *
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* ktrace vnode, if one
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*/
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if (p->p_tracep)
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ftrans(p->p_tracep, TRACE);
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#endif
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/*
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* open files
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*/
|
|
#define FPSIZE (sizeof (fdfile_t *))
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ALLOC_OFILES(filed.fd_lastfile+1);
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if (!KVM_READ(&filed.fd_dt->dt_ff, ofiles,
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(filed.fd_lastfile+1) * FPSIZE)) {
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dprintf("can't read file structures at %p for pid %d",
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&filed.fd_dt->dt_ff, Pid);
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return;
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}
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for (i = 0; i <= filed.fd_lastfile; i++) {
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if (ofiles[i] == NULL)
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continue;
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ftrans(ofiles[i], i);
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}
|
|
}
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|
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static void
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ftrans(fdfile_t *fp, int i)
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|
{
|
|
struct file file;
|
|
fdfile_t fdfile;
|
|
|
|
if (!KVM_READ(fp, &fdfile, sizeof(fdfile))) {
|
|
dprintf("can't read file %d at %p for pid %d",
|
|
i, fp, Pid);
|
|
return;
|
|
}
|
|
if (fdfile.ff_file == NULL) {
|
|
dprintf("null ff_file for %d at %p for pid %d",
|
|
i, fp, Pid);
|
|
return;
|
|
}
|
|
if (!KVM_READ(fdfile.ff_file, &file, sizeof(file))) {
|
|
dprintf("can't read file %d at %p for pid %d",
|
|
i, fdfile.ff_file, Pid);
|
|
return;
|
|
}
|
|
if (Aflg && file.f_type != DTYPE_VNODE && checkfile == 0)
|
|
(void)printf("%*lx ",
|
|
2*(int)(sizeof(void*)), (long)fdfile.ff_file);
|
|
switch (file.f_type) {
|
|
case DTYPE_VNODE:
|
|
vtrans(&file, file.f_data, i, file.f_flag, (long)fdfile.ff_file);
|
|
break;
|
|
case DTYPE_SOCKET:
|
|
socktrans(&file, file.f_data, i);
|
|
break;
|
|
case DTYPE_PIPE:
|
|
if (checkfile == 0)
|
|
ptrans(&file, file.f_data, i);
|
|
break;
|
|
case DTYPE_MISC:
|
|
case DTYPE_KQUEUE:
|
|
case DTYPE_CRYPTO:
|
|
case DTYPE_MQUEUE:
|
|
case DTYPE_SEM:
|
|
if (checkfile == 0)
|
|
misctrans(&file, i);
|
|
break;
|
|
default:
|
|
dprintf("unknown file type %d for file %d of pid %d",
|
|
file.f_type, i, Pid);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static const char dead[] = "dead";
|
|
static const char *vnode_tag[] = {
|
|
VNODE_TAGS
|
|
};
|
|
|
|
static const char *
|
|
vfilestat(struct vnode *vp, struct filestat *fsp)
|
|
{
|
|
const char *badtype = NULL;
|
|
|
|
if (vp->v_type == VNON)
|
|
badtype = "none";
|
|
else if (vp->v_type == VBAD)
|
|
badtype = "bad";
|
|
else
|
|
switch (vp->v_tag) {
|
|
case VT_NON:
|
|
badtype = dead;
|
|
break;
|
|
case VT_UFS:
|
|
case VT_LFS:
|
|
case VT_MFS:
|
|
if (!ufs_filestat(vp, fsp))
|
|
badtype = "error";
|
|
break;
|
|
case VT_MSDOSFS:
|
|
if (!msdosfs_filestat(vp, fsp))
|
|
badtype = "error";
|
|
break;
|
|
case VT_NFS:
|
|
if (!nfs_filestat(vp, fsp))
|
|
badtype = "error";
|
|
break;
|
|
case VT_EXT2FS:
|
|
if (!ext2fs_filestat(vp, fsp))
|
|
badtype = "error";
|
|
break;
|
|
case VT_ISOFS:
|
|
if (!isofs_filestat(vp, fsp))
|
|
badtype = "error";
|
|
break;
|
|
case VT_NTFS:
|
|
if (!ntfs_filestat(vp, fsp))
|
|
badtype = "error";
|
|
break;
|
|
case VT_PTYFS:
|
|
if (!ptyfs_filestat(vp, fsp))
|
|
badtype = "error";
|
|
break;
|
|
case VT_TMPFS:
|
|
if (!tmpfs_filestat(vp, fsp))
|
|
badtype = "error";
|
|
break;
|
|
case VT_NULL:
|
|
case VT_OVERLAY:
|
|
case VT_UMAP:
|
|
badtype = layer_filestat(vp, fsp);
|
|
break;
|
|
default: {
|
|
static char unknown[10];
|
|
(void)snprintf(unknown, sizeof unknown, "%s(%#x)",
|
|
(size_t)vp->v_tag < __arraycount(vnode_tag) ?
|
|
vnode_tag[vp->v_tag] : "?", vp->v_tag);
|
|
badtype = unknown;
|
|
break;
|
|
}
|
|
}
|
|
return badtype;
|
|
}
|
|
|
|
static int
|
|
checkfs(struct vnode *vp, struct vnode *vn, struct filestat *fst,
|
|
const char **type, const char **fname)
|
|
{
|
|
*fname = NULL;
|
|
if (!KVM_READ(vp, vn, sizeof(*vn))) {
|
|
dprintf("can't read vnode at %p for pid %d", vp, Pid);
|
|
return 0;
|
|
}
|
|
*type = vfilestat(vn, fst);
|
|
if (checkfile) {
|
|
int fsmatch = 0;
|
|
DEVS *d;
|
|
#if 0
|
|
if (*type && *type != dead)
|
|
return 0;
|
|
#endif
|
|
for (d = devs; d != NULL; d = d->next) {
|
|
if (d->fsid == fst->fsid) {
|
|
fsmatch = 1;
|
|
if (d->ino == fst->fileid) {
|
|
*fname = d->name;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
if (fsmatch == 0 || (*fname == NULL && fsflg == 0))
|
|
return 0;
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
static void
|
|
vprint(struct vnode *vn, struct filestat *fst)
|
|
{
|
|
switch (vn->v_type) {
|
|
case VBLK:
|
|
case VCHR: {
|
|
const char *name;
|
|
|
|
if (nflg || ((name = devname(fst->rdev, vn->v_type == VCHR ?
|
|
S_IFCHR : S_IFBLK)) == NULL))
|
|
(void)printf(" %s,%-2llu",
|
|
kdriver_search(vn->v_type, major(fst->rdev)),
|
|
(unsigned long long)minor(fst->rdev));
|
|
else
|
|
(void)printf(" %6s", name);
|
|
break;
|
|
}
|
|
default:
|
|
(void)printf(" %6lld", (long long)fst->size);
|
|
}
|
|
}
|
|
|
|
void
|
|
oprint(struct file *fp, const char *str)
|
|
{
|
|
if (Oflg)
|
|
(void)printf(" %6lld", (long long)(fp ? fp->f_offset : 0));
|
|
fputs(str, stdout);
|
|
}
|
|
|
|
static void
|
|
vtrans(struct file *fp, struct vnode *vp, int i, int flag, long addr)
|
|
{
|
|
struct vnode vn;
|
|
char mode[15], rw[3];
|
|
const char *badtype, *filename;
|
|
struct filestat fst;
|
|
|
|
if (!checkfs(vp, &vn, &fst, &badtype, &filename))
|
|
return;
|
|
|
|
if (Aflg)
|
|
(void)printf("%*lx ", 2*(int)(sizeof(void*)), addr);
|
|
PREFIX(i);
|
|
if (badtype == dead) {
|
|
char buf[1024];
|
|
(void)snprintb(buf, sizeof(buf), VNODE_FLAGBITS,
|
|
vn.v_iflag | vn.v_vflag | vn.v_uflag);
|
|
(void)printf(" flags %s\n", buf);
|
|
return;
|
|
} else if (badtype) {
|
|
(void)printf(" - - %10s -\n", badtype);
|
|
return;
|
|
}
|
|
if (nflg)
|
|
(void)printf(" %3llu,%-2llu",
|
|
(unsigned long long)major(fst.fsid),
|
|
(unsigned long long)minor(fst.fsid));
|
|
else
|
|
(void)printf(" %-8s", getmnton(vn.v_mount));
|
|
if (nflg)
|
|
(void)snprintf(mode, sizeof mode, "%6o", fst.mode);
|
|
else
|
|
strmode(fst.mode, mode);
|
|
(void)printf(" %8"PRIu64" %*s", fst.fileid, nflg ? 5 : 10, mode);
|
|
if (Oflg) {
|
|
oprint(fp, "");
|
|
} else {
|
|
vprint(&vn, &fst);
|
|
}
|
|
rw[0] = '\0';
|
|
if (flag & FREAD)
|
|
(void)strlcat(rw, "r", sizeof(rw));
|
|
if (flag & FWRITE)
|
|
(void)strlcat(rw, "w", sizeof(rw));
|
|
(void)printf(" %-2s", rw);
|
|
if (filename && !fsflg)
|
|
(void)printf(" %s", filename);
|
|
(void)putchar('\n');
|
|
}
|
|
|
|
static int
|
|
ufs_filestat(struct vnode *vp, struct filestat *fsp)
|
|
{
|
|
struct inode inode;
|
|
struct ufsmount ufsmount;
|
|
union dinode {
|
|
struct ufs1_dinode dp1;
|
|
struct ufs2_dinode dp2;
|
|
} dip;
|
|
|
|
if (!KVM_READ(VTOI(vp), &inode, sizeof (inode))) {
|
|
dprintf("can't read inode at %p for pid %d", VTOI(vp), Pid);
|
|
return 0;
|
|
}
|
|
|
|
if (!KVM_READ(inode.i_ump, &ufsmount, sizeof (struct ufsmount))) {
|
|
dprintf("can't read ufsmount at %p for pid %d", inode.i_ump, Pid);
|
|
return 0;
|
|
}
|
|
|
|
switch (ufsmount.um_fstype) {
|
|
case UFS1:
|
|
if (!KVM_READ(inode.i_din.ffs1_din, &dip,
|
|
sizeof(struct ufs1_dinode))) {
|
|
dprintf("can't read dinode at %p for pid %d",
|
|
inode.i_din.ffs1_din, Pid);
|
|
return 0;
|
|
}
|
|
fsp->rdev = dip.dp1.di_rdev;
|
|
break;
|
|
case UFS2:
|
|
if (!KVM_READ(inode.i_din.ffs2_din, &dip,
|
|
sizeof(struct ufs2_dinode))) {
|
|
dprintf("can't read dinode at %p for pid %d",
|
|
inode.i_din.ffs2_din, Pid);
|
|
return 0;
|
|
}
|
|
fsp->rdev = dip.dp2.di_rdev;
|
|
break;
|
|
default:
|
|
dprintf("unknown ufs type %ld for pid %d",
|
|
ufsmount.um_fstype, Pid);
|
|
break;
|
|
}
|
|
fsp->fsid = inode.i_dev & 0xffff;
|
|
fsp->fileid = inode.i_number;
|
|
fsp->mode = (mode_t)inode.i_mode;
|
|
fsp->size = inode.i_size;
|
|
|
|
return 1;
|
|
}
|
|
|
|
static int
|
|
ext2fs_filestat(struct vnode *vp, struct filestat *fsp)
|
|
{
|
|
struct inode inode;
|
|
struct ext2fs_dinode dinode;
|
|
|
|
if (!KVM_READ(VTOI(vp), &inode, sizeof (inode))) {
|
|
dprintf("can't read inode at %p for pid %d", VTOI(vp), Pid);
|
|
return 0;
|
|
}
|
|
fsp->fsid = inode.i_dev & 0xffff;
|
|
fsp->fileid = inode.i_number;
|
|
|
|
if (!KVM_READ(inode.i_din.e2fs_din, &dinode, sizeof dinode)) {
|
|
dprintf("can't read ext2fs_dinode at %p for pid %d",
|
|
inode.i_din.e2fs_din, Pid);
|
|
return 0;
|
|
}
|
|
fsp->mode = dinode.e2di_mode;
|
|
fsp->size = dinode.e2di_size;
|
|
fsp->rdev = dinode.e2di_rdev;
|
|
|
|
return 1;
|
|
}
|
|
|
|
static int
|
|
nfs_filestat(struct vnode *vp, struct filestat *fsp)
|
|
{
|
|
struct nfsnode nfsnode;
|
|
struct vattr va;
|
|
|
|
if (!KVM_READ(VTONFS(vp), &nfsnode, sizeof (nfsnode))) {
|
|
dprintf("can't read nfsnode at %p for pid %d", VTONFS(vp),
|
|
Pid);
|
|
return 0;
|
|
}
|
|
if (!KVM_READ(nfsnode.n_vattr, &va, sizeof(va))) {
|
|
dprintf("can't read vnode attributes at %p for pid %d",
|
|
nfsnode.n_vattr, Pid);
|
|
return 0;
|
|
}
|
|
fsp->fsid = va.va_fsid;
|
|
fsp->fileid = va.va_fileid;
|
|
fsp->size = nfsnode.n_size;
|
|
fsp->rdev = va.va_rdev;
|
|
fsp->mode = (mode_t)va.va_mode | getftype(vp->v_type);
|
|
|
|
return 1;
|
|
}
|
|
|
|
static int
|
|
msdosfs_filestat(struct vnode *vp, struct filestat *fsp)
|
|
{
|
|
struct denode de;
|
|
struct msdosfsmount mp;
|
|
|
|
if (!KVM_READ(VTONFS(vp), &de, sizeof(de))) {
|
|
dprintf("can't read denode at %p for pid %d", VTONFS(vp),
|
|
Pid);
|
|
return 0;
|
|
}
|
|
if (!KVM_READ(de.de_pmp, &mp, sizeof(mp))) {
|
|
dprintf("can't read mount struct at %p for pid %d", de.de_pmp,
|
|
Pid);
|
|
return 0;
|
|
}
|
|
|
|
fsp->fsid = de.de_dev & 0xffff;
|
|
fsp->fileid = 0; /* XXX see msdosfs_vptofh() for more info */
|
|
fsp->size = de.de_FileSize;
|
|
fsp->rdev = 0; /* msdosfs doesn't support device files */
|
|
fsp->mode = (0777 & mp.pm_mask) | getftype(vp->v_type);
|
|
return 1;
|
|
}
|
|
|
|
static const char *
|
|
layer_filestat(struct vnode *vp, struct filestat *fsp)
|
|
{
|
|
struct layer_node layer_node;
|
|
struct mount mount;
|
|
struct vnode vn;
|
|
const char *badtype;
|
|
|
|
if (!KVM_READ(VTOLAYER(vp), &layer_node, sizeof(layer_node))) {
|
|
dprintf("can't read layer_node at %p for pid %d",
|
|
VTOLAYER(vp), Pid);
|
|
return "error";
|
|
}
|
|
if (!KVM_READ(vp->v_mount, &mount, sizeof(struct mount))) {
|
|
dprintf("can't read mount struct at %p for pid %d",
|
|
vp->v_mount, Pid);
|
|
return "error";
|
|
}
|
|
vp = layer_node.layer_lowervp;
|
|
if (!KVM_READ(vp, &vn, sizeof(struct vnode))) {
|
|
dprintf("can't read vnode at %p for pid %d", vp, Pid);
|
|
return "error";
|
|
}
|
|
if ((badtype = vfilestat(&vn, fsp)) == NULL)
|
|
fsp->fsid = mount.mnt_stat.f_fsidx.__fsid_val[0];
|
|
return badtype;
|
|
}
|
|
|
|
static char *
|
|
getmnton(struct mount *m)
|
|
{
|
|
static struct mount mount;
|
|
static struct mtab {
|
|
struct mtab *next;
|
|
struct mount *m;
|
|
char mntonname[MNAMELEN];
|
|
} *mhead = NULL;
|
|
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))) {
|
|
warnx("can't read mount table at %p", m);
|
|
return NULL;
|
|
}
|
|
if ((mt = malloc(sizeof (struct mtab))) == NULL) {
|
|
err(1, "malloc(%u)", (unsigned int)sizeof(struct mtab));
|
|
}
|
|
mt->m = m;
|
|
(void)memmove(&mt->mntonname[0], &mount.mnt_stat.f_mntonname[0],
|
|
MNAMELEN);
|
|
mt->next = mhead;
|
|
mhead = mt;
|
|
return mt->mntonname;
|
|
}
|
|
|
|
static const char *
|
|
inet_addrstr(char *buf, size_t len, const struct in_addr *a, uint16_t p, bool isdg)
|
|
{
|
|
char addr[256], serv[256];
|
|
struct sockaddr_in sin;
|
|
const int niflags =
|
|
(nflg ? (NI_NUMERICHOST|NI_NUMERICSERV) : 0) |
|
|
(isdg ? NI_DGRAM : 0);
|
|
|
|
|
|
(void)memset(&sin, 0, sizeof(sin));
|
|
sin.sin_family = AF_INET;
|
|
sin.sin_len = sizeof(sin);
|
|
sin.sin_addr = *a;
|
|
sin.sin_port = htons(p);
|
|
|
|
serv[0] = '\0';
|
|
|
|
if (getnameinfo((struct sockaddr *)&sin, sin.sin_len,
|
|
addr, sizeof(addr), serv, sizeof(serv), niflags)) {
|
|
if (inet_ntop(AF_INET, a, addr, sizeof(addr)) == NULL)
|
|
strlcpy(addr, "invalid", sizeof(addr));
|
|
}
|
|
|
|
if (serv[0] == '\0')
|
|
snprintf(serv, sizeof(serv), "%u", p);
|
|
|
|
if (a->s_addr == INADDR_ANY) {
|
|
if (p == 0)
|
|
buf[0] = '\0';
|
|
else
|
|
snprintf(buf, len, "*:%s", serv);
|
|
return buf;
|
|
}
|
|
|
|
snprintf(buf, len, "%s:%s", addr, serv);
|
|
return buf;
|
|
}
|
|
|
|
#ifdef INET6
|
|
static const char *
|
|
inet6_addrstr(char *buf, size_t len, const struct in6_addr *a, uint16_t p, bool isdg)
|
|
{
|
|
char addr[256], serv[256];
|
|
struct sockaddr_in6 sin6;
|
|
const int niflags =
|
|
(nflg ? (NI_NUMERICHOST|NI_NUMERICSERV) : 0) |
|
|
(isdg ? NI_DGRAM : 0);
|
|
|
|
(void)memset(&sin6, 0, sizeof(sin6));
|
|
sin6.sin6_family = AF_INET6;
|
|
sin6.sin6_len = sizeof(sin6);
|
|
sin6.sin6_addr = *a;
|
|
sin6.sin6_port = htons(p);
|
|
|
|
inet6_getscopeid(&sin6, INET6_IS_ADDR_LINKLOCAL);
|
|
serv[0] = '\0';
|
|
|
|
if (getnameinfo((struct sockaddr *)&sin6, sin6.sin6_len,
|
|
addr, sizeof(addr), serv, sizeof(serv), niflags)) {
|
|
if (inet_ntop(AF_INET6, a, addr, sizeof(addr)) == NULL)
|
|
strlcpy(addr, "invalid", sizeof(addr));
|
|
}
|
|
|
|
if (serv[0] == '\0')
|
|
snprintf(serv, sizeof(serv), "%u", p);
|
|
|
|
if (IN6_IS_ADDR_UNSPECIFIED(a)) {
|
|
if (p == 0)
|
|
buf[0] = '\0';
|
|
else
|
|
snprintf(buf, len, "*:%s", serv);
|
|
return buf;
|
|
}
|
|
|
|
if (strchr(addr, ':') == NULL)
|
|
snprintf(buf, len, "%s:%s", addr, serv);
|
|
else
|
|
snprintf(buf, len, "[%s]:%s", addr, serv);
|
|
|
|
return buf;
|
|
}
|
|
#endif
|
|
|
|
static const char *
|
|
at_addrstr(char *buf, size_t len, const struct sockaddr_at *sat)
|
|
{
|
|
const struct netrange *nr = &sat->sat_range.r_netrange;
|
|
const struct at_addr *at = &sat->sat_addr;
|
|
char addr[64], phase[64], range[64];
|
|
|
|
if (sat->sat_port || at->s_net || at->s_node) {
|
|
if (at->s_net || at->s_node)
|
|
snprintf(addr, sizeof(addr), "%u.%u:%u",
|
|
ntohs(at->s_net), at->s_node, sat->sat_port);
|
|
else
|
|
snprintf(addr, sizeof(addr), "*:%u", sat->sat_port);
|
|
} else
|
|
addr[0] = '\0';
|
|
|
|
if (nr->nr_phase)
|
|
snprintf(phase, sizeof(phase), " phase %u", nr->nr_phase);
|
|
else
|
|
phase[0] = '\0';
|
|
|
|
if (nr->nr_firstnet || nr->nr_lastnet)
|
|
snprintf(range, sizeof(range), " range [%u-%u]",
|
|
ntohs(nr->nr_firstnet), ntohs(nr->nr_lastnet));
|
|
else
|
|
range[0] = '\0';
|
|
|
|
snprintf(buf, len, "%s%s%s", addr, phase, range);
|
|
return buf;
|
|
}
|
|
|
|
static void
|
|
socktrans(struct file *f, struct socket *sock, int i)
|
|
{
|
|
static const 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;
|
|
#ifdef INET6
|
|
struct in6pcb in6pcb;
|
|
#endif
|
|
struct unpcb unpcb;
|
|
struct ddpcb ddpcb;
|
|
int len;
|
|
char dname[32];
|
|
char lbuf[512], fbuf[512], pbuf[24];
|
|
bool isdgram;
|
|
|
|
pbuf[0] = '\0';
|
|
/* fill in socket */
|
|
if (!KVM_READ(sock, &so, sizeof(struct socket))) {
|
|
dprintf("can't read sock at %p", sock);
|
|
goto bad;
|
|
}
|
|
|
|
/* fill in protosw entry */
|
|
if (!KVM_READ(so.so_proto, &proto, sizeof(struct protosw))) {
|
|
dprintf("can't read protosw at %p", so.so_proto);
|
|
goto bad;
|
|
}
|
|
|
|
/* fill in domain */
|
|
if (!KVM_READ(proto.pr_domain, &dom, sizeof(struct domain))) {
|
|
dprintf("can't read domain at %p", proto.pr_domain);
|
|
goto bad;
|
|
}
|
|
|
|
if (checkfile && dom.dom_family != AF_LOCAL)
|
|
return;
|
|
|
|
if ((len = kvm_read(kd, (u_long)dom.dom_name, dname,
|
|
sizeof(dname) - 1)) != sizeof(dname) -1) {
|
|
dprintf("can't read domain name at %p", dom.dom_name);
|
|
dname[0] = '\0';
|
|
}
|
|
else
|
|
dname[len] = '\0';
|
|
|
|
/*
|
|
* 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.
|
|
*/
|
|
fbuf[0] = '\0';
|
|
lbuf[0] = '\0';
|
|
isdgram = false;
|
|
switch(dom.dom_family) {
|
|
case AF_INET:
|
|
getinetproto(pbuf, sizeof(pbuf), proto.pr_protocol);
|
|
switch (proto.pr_protocol) {
|
|
case IPPROTO_UDP:
|
|
isdgram = true;
|
|
/* FALLTHROUGH */
|
|
case IPPROTO_TCP:
|
|
if (so.so_pcb == NULL)
|
|
break;
|
|
if (kvm_read(kd, (u_long)so.so_pcb, (char *)&inpcb,
|
|
sizeof(inpcb)) != sizeof(inpcb)) {
|
|
dprintf("can't read inpcb at %p", so.so_pcb);
|
|
goto bad;
|
|
}
|
|
inet_addrstr(lbuf, sizeof(lbuf), &inpcb.inp_laddr,
|
|
ntohs(inpcb.inp_lport), isdgram);
|
|
inet_addrstr(fbuf, sizeof(fbuf), &inpcb.inp_faddr,
|
|
ntohs(inpcb.inp_fport), isdgram);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
break;
|
|
#ifdef INET6
|
|
case AF_INET6:
|
|
getinetproto(pbuf, sizeof(pbuf), proto.pr_protocol);
|
|
switch (proto.pr_protocol) {
|
|
case IPPROTO_UDP:
|
|
isdgram = true;
|
|
/* FALLTHROUGH */
|
|
case IPPROTO_TCP:
|
|
if (so.so_pcb == NULL)
|
|
break;
|
|
if (kvm_read(kd, (u_long)so.so_pcb, (char *)&in6pcb,
|
|
sizeof(in6pcb)) != sizeof(in6pcb)) {
|
|
dprintf("can't read in6pcb at %p", so.so_pcb);
|
|
goto bad;
|
|
}
|
|
inet6_addrstr(lbuf, sizeof(lbuf), &in6pcb.in6p_laddr,
|
|
ntohs(in6pcb.in6p_lport), isdgram);
|
|
inet6_addrstr(fbuf, sizeof(fbuf), &in6pcb.in6p_faddr,
|
|
ntohs(in6pcb.in6p_fport), isdgram);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
break;
|
|
#endif
|
|
case AF_LOCAL:
|
|
/* print address of pcb and connected pcb */
|
|
if (so.so_pcb) {
|
|
char shoconn[4], *cp;
|
|
void *pcb[2];
|
|
size_t p = 0;
|
|
|
|
pcb[0] = so.so_pcb;
|
|
|
|
cp = shoconn;
|
|
if (!(so.so_state & SS_CANTRCVMORE))
|
|
*cp++ = '<';
|
|
*cp++ = '-';
|
|
if (!(so.so_state & SS_CANTSENDMORE))
|
|
*cp++ = '>';
|
|
*cp = '\0';
|
|
again:
|
|
if (kvm_read(kd, (u_long)pcb[p], (char *)&unpcb,
|
|
sizeof(struct unpcb)) != sizeof(struct unpcb)){
|
|
dprintf("can't read unpcb at %p", so.so_pcb);
|
|
goto bad;
|
|
}
|
|
if (checkfile) {
|
|
struct vnode vn;
|
|
struct filestat fst;
|
|
const char *badtype, *filename;
|
|
if (unpcb.unp_vnode == NULL)
|
|
return;
|
|
if (!checkfs(unpcb.unp_vnode, &vn, &fst,
|
|
&badtype, &filename))
|
|
return;
|
|
}
|
|
|
|
if (unpcb.unp_addr) {
|
|
struct sockaddr_un *sun =
|
|
malloc(unpcb.unp_addrlen);
|
|
if (sun == NULL)
|
|
err(1, "malloc(%zu)",
|
|
unpcb.unp_addrlen);
|
|
if (kvm_read(kd, (u_long)unpcb.unp_addr,
|
|
sun, unpcb.unp_addrlen) !=
|
|
(ssize_t)unpcb.unp_addrlen) {
|
|
dprintf("can't read sun at %p",
|
|
unpcb.unp_addr);
|
|
free(sun);
|
|
} else {
|
|
snprintf(fbuf, sizeof(fbuf), " %s %s %s",
|
|
shoconn, sun->sun_path,
|
|
p == 0 ? "[creat]" : "[using]");
|
|
free(sun);
|
|
break;
|
|
}
|
|
}
|
|
if (unpcb.unp_conn) {
|
|
if (p == 0) {
|
|
pcb[++p] = unpcb.unp_conn;
|
|
goto again;
|
|
} else
|
|
snprintf(fbuf, sizeof(fbuf),
|
|
" %p %s %p", pcb[0], shoconn,
|
|
pcb[1]);
|
|
}
|
|
}
|
|
break;
|
|
case AF_APPLETALK:
|
|
getatproto(pbuf, sizeof(pbuf), proto.pr_protocol);
|
|
if (so.so_pcb) {
|
|
if (kvm_read(kd, (u_long)so.so_pcb, (char *)&ddpcb,
|
|
sizeof(ddpcb)) != sizeof(ddpcb)){
|
|
dprintf("can't read ddpcb at %p", so.so_pcb);
|
|
goto bad;
|
|
}
|
|
at_addrstr(fbuf, sizeof(fbuf), &ddpcb.ddp_fsat);
|
|
at_addrstr(lbuf, sizeof(lbuf), &ddpcb.ddp_lsat);
|
|
}
|
|
break;
|
|
default:
|
|
/* print protocol number and socket address */
|
|
snprintf(fbuf, sizeof(fbuf), " %d %jx", proto.pr_protocol,
|
|
(uintmax_t)(uintptr_t)sock);
|
|
break;
|
|
}
|
|
PREFIX(i);
|
|
if ((u_short)so.so_type > STYPEMAX)
|
|
(void)printf("* %s ?%d", dname, so.so_type);
|
|
else
|
|
(void)printf("* %s %s", dname, stypename[so.so_type]);
|
|
|
|
if (pbuf[0])
|
|
printf("%s", pbuf);
|
|
if (fbuf[0] || lbuf[0])
|
|
printf(" %s%s%s", fbuf, (fbuf[0] && lbuf[0]) ? " <-> " : "",
|
|
lbuf);
|
|
else if (so.so_pcb)
|
|
printf(" %jx", (uintmax_t)(uintptr_t)so.so_pcb);
|
|
oprint(f, "\n");
|
|
return;
|
|
bad:
|
|
(void)printf("* error\n");
|
|
}
|
|
|
|
static void
|
|
ptrans(struct file *fp, struct pipe *cpipe, int i)
|
|
{
|
|
struct pipe cp;
|
|
|
|
PREFIX(i);
|
|
|
|
/* fill in pipe */
|
|
if (!KVM_READ(cpipe, &cp, sizeof(struct pipe))) {
|
|
dprintf("can't read pipe at %p", cpipe);
|
|
goto bad;
|
|
}
|
|
|
|
/* pipe descriptor is either read or write, never both */
|
|
(void)printf("* pipe %p %s %p %s%s%s", cpipe,
|
|
(fp->f_flag & FWRITE) ? "->" : "<-",
|
|
cp.pipe_peer,
|
|
(fp->f_flag & FWRITE) ? "w" : "r",
|
|
(fp->f_flag & FNONBLOCK) ? "n" : "",
|
|
(cp.pipe_state & PIPE_ASYNC) ? "a" : "");
|
|
oprint(fp, "\n");
|
|
return;
|
|
bad:
|
|
(void)printf("* error\n");
|
|
}
|
|
|
|
static void
|
|
misctrans(struct file *file, int i)
|
|
{
|
|
|
|
PREFIX(i);
|
|
pmisc(file, dtypes[file->f_type]);
|
|
}
|
|
|
|
/*
|
|
* getinetproto --
|
|
* print name of protocol number
|
|
*/
|
|
static void
|
|
getinetproto(char *buf, size_t len, int number)
|
|
{
|
|
const 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;
|
|
case IPPROTO_ICMPV6:
|
|
cp ="icmp6"; break;
|
|
default:
|
|
(void)snprintf(buf, len, " %d", number);
|
|
return;
|
|
}
|
|
(void)snprintf(buf, len, " %s", cp);
|
|
}
|
|
|
|
/*
|
|
* getatproto --
|
|
* print name of protocol number
|
|
*/
|
|
static void
|
|
getatproto(char *buf, size_t len, int number)
|
|
{
|
|
const char *cp;
|
|
|
|
switch (number) {
|
|
case ATPROTO_DDP:
|
|
cp = "ddp"; break;
|
|
case ATPROTO_AARP:
|
|
cp ="aarp"; break;
|
|
default:
|
|
(void)snprintf(buf, len, " %d", number);
|
|
return;
|
|
}
|
|
(void)snprintf(buf, len, " %s", cp);
|
|
}
|
|
|
|
static int
|
|
getfname(const char *filename)
|
|
{
|
|
struct stat statbuf;
|
|
DEVS *cur;
|
|
|
|
if (stat(filename, &statbuf)) {
|
|
warn("stat(%s)", filename);
|
|
return 0;
|
|
}
|
|
if ((cur = malloc(sizeof(*cur))) == NULL) {
|
|
err(1, "malloc(%zu)", sizeof(*cur));
|
|
}
|
|
cur->next = devs;
|
|
devs = cur;
|
|
|
|
cur->ino = statbuf.st_ino;
|
|
cur->fsid = statbuf.st_dev & 0xffff;
|
|
cur->name = filename;
|
|
return 1;
|
|
}
|
|
|
|
mode_t
|
|
getftype(enum vtype v_type)
|
|
{
|
|
mode_t ftype;
|
|
|
|
switch (v_type) {
|
|
case VREG:
|
|
ftype = S_IFREG;
|
|
break;
|
|
case VDIR:
|
|
ftype = S_IFDIR;
|
|
break;
|
|
case VBLK:
|
|
ftype = S_IFBLK;
|
|
break;
|
|
case VCHR:
|
|
ftype = S_IFCHR;
|
|
break;
|
|
case VLNK:
|
|
ftype = S_IFLNK;
|
|
break;
|
|
case VSOCK:
|
|
ftype = S_IFSOCK;
|
|
break;
|
|
case VFIFO:
|
|
ftype = S_IFIFO;
|
|
break;
|
|
default:
|
|
ftype = 0;
|
|
break;
|
|
};
|
|
|
|
return ftype;
|
|
}
|
|
|
|
static void
|
|
usage(void)
|
|
{
|
|
(void)fprintf(stderr, "Usage: %s [-Afnv] [-M core] [-N system] "
|
|
"[-p pid] [-u user] [file ...]\n", getprogname());
|
|
exit(1);
|
|
}
|