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[src/trunk]: src/usr.bin/fstat Add -O to print offsets; align columns properly.
details: https://anonhg.NetBSD.org/src/rev/47aa76bd778f
branches: trunk
changeset: 965212:47aa76bd778f
user: christos <christos%NetBSD.org@localhost>
date: Fri Sep 06 17:08:22 2019 +0000
description:
Add -O to print offsets; align columns properly.
diffstat:
usr.bin/fstat/fstat.1 | 37 ++++++++++++-------
usr.bin/fstat/fstat.c | 97 ++++++++++++++++++++++++++++++++------------------
usr.bin/fstat/fstat.h | 3 +-
usr.bin/fstat/misc.c | 46 +++++++++++++----------
4 files changed, 112 insertions(+), 71 deletions(-)
diffs (truncated from 424 to 300 lines):
diff -r 54b99d0296bf -r 47aa76bd778f usr.bin/fstat/fstat.1
--- a/usr.bin/fstat/fstat.1 Fri Sep 06 16:28:53 2019 +0000
+++ b/usr.bin/fstat/fstat.1 Fri Sep 06 17:08:22 2019 +0000
@@ -1,4 +1,4 @@
-.\" $NetBSD: fstat.1,v 1.34 2017/07/03 21:34:57 wiz Exp $
+.\" $NetBSD: fstat.1,v 1.35 2019/09/06 17:08:22 christos Exp $
.\"
.\" Copyright (c) 1987, 1991, 1993
.\" The Regents of the University of California. All rights reserved.
@@ -29,7 +29,7 @@
.\"
.\" from: @(#)fstat.1 8.3 (Berkeley) 2/25/94
.\"
-.Dd December 15, 2013
+.Dd September 6, 2019
.Dt FSTAT 1
.Os
.Sh NAME
@@ -37,7 +37,7 @@
.Nd display status of open files
.Sh SYNOPSIS
.Nm
-.Op Fl Afnv
+.Op Fl AfnOv
.Op Fl M Ar core
.Op Fl N Ar system
.Op Fl p Ar pid
@@ -54,7 +54,7 @@
reports on all open files in the system.
.Pp
Options:
-.Bl -tag -width Ds
+.Bl -tag -width XXXXXXXXXX
.It Fl A
Add an output column with the address of the kernel object (vnode or file),
that can be matched with
@@ -72,12 +72,15 @@
Please see the
.Sx BUGS
section for issues with this option.
-.It Fl M
-Extract values associated with the name list from the specified core
+.It Fl M Ar core
+Extract values associated with the name list from the specified
+.Ar core
instead of the default
.Pa /dev/kmem .
-.It Fl N
-Extract the name list from the specified system instead of the default
+.It Fl N Ar system
+Extract the name list from the specified
+.Ar system
+instead of the default
.Pa /netbsd .
.It Fl n
Numerical format.
@@ -88,10 +91,14 @@
in
.Pa /dev ;
and print the mode of the file in octal instead of symbolic form.
-.It Fl p
-Report all files open by the specified process.
-.It Fl u
-Report all files open by the specified user.
+.It Fl O
+Report file offsets instead of sizes.
+.It Fl p Ar process
+Report all files open by the specified
+.Ar process .
+.It Fl u Ar user
+Report all files open by the specified
+.Ar user .
.It Fl v
Verbose mode.
Print error messages upon failures to locate particular
@@ -161,9 +168,11 @@
.Xr strmode 3 ) ;
otherwise, the mode is printed
as an octal number.
-.It Li SZ\&|DV
+.It Li SZ\&|DV or OFFS
If the file is not a character or block special file, prints the size of
-the file in bytes.
+the file in bytes (or the offset if the
+.Fl O
+is specified).
Otherwise, if the
.Fl n
flag is not specified, prints
diff -r 54b99d0296bf -r 47aa76bd778f usr.bin/fstat/fstat.c
--- a/usr.bin/fstat/fstat.c Fri Sep 06 16:28:53 2019 +0000
+++ b/usr.bin/fstat/fstat.c Fri Sep 06 17:08:22 2019 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: fstat.c,v 1.112 2019/02/03 03:19:29 mrg Exp $ */
+/* $NetBSD: fstat.c,v 1.113 2019/09/06 17:08:22 christos Exp $ */
/*-
* Copyright (c) 1988, 1993
@@ -39,7 +39,7 @@
#if 0
static char sccsid[] = "@(#)fstat.c 8.3 (Berkeley) 5/2/95";
#else
-__RCSID("$NetBSD: fstat.c,v 1.112 2019/02/03 03:19:29 mrg Exp $");
+__RCSID("$NetBSD: fstat.c,v 1.113 2019/09/06 17:08:22 christos Exp $");
#endif
#endif /* not lint */
@@ -134,6 +134,7 @@
static int checkfile; /* true if restricting to particular files or filesystems */
static int nflg; /* (numerical) display f.s. and rdev as dev_t */
static int Aflg; /* prefix with address of file structure */
+static int Oflg; /* print offset instead of size */
int vflg; /* display errors in locating kernel data objects etc... */
static fdfile_t **ofiles; /* buffer of pointers to file structures */
@@ -171,12 +172,12 @@
uint16_t, bool);
#endif
static const char *at_addrstr(char *, size_t, const struct sockaddr_at *);
-static void socktrans(struct socket *, int);
+static void socktrans(struct file *, struct socket *, int);
static void misctrans(struct file *, int);
static int ufs_filestat(struct vnode *, struct filestat *);
static void usage(void) __dead;
static const char *vfilestat(struct vnode *, struct filestat *);
-static void vtrans(struct vnode *, int, int, long);
+static void vtrans(struct file *, struct vnode *, int, int, long);
static void ftrans(fdfile_t *, int);
static void ptrans(struct file *, struct pipe *, int);
static void kdriver_init(void);
@@ -196,7 +197,7 @@
arg = 0;
what = KERN_PROC_ALL;
nlistf = memf = NULL;
- while ((ch = getopt(argc, argv, "fnAp:u:vN:M:")) != -1)
+ while ((ch = getopt(argc, argv, "fnAOp:u:vN:M:")) != -1)
switch((char)ch) {
case 'f':
fsflg = 1;
@@ -213,6 +214,9 @@
case 'A':
Aflg = 1;
break;
+ case 'O':
+ Oflg = 1;
+ break;
case 'p':
if (pflg++)
usage();
@@ -284,11 +288,14 @@
if (Aflg)
(void)printf("%-*s ", 2*(int)(sizeof(void*)), "ADDR");
if (nflg)
- (void)printf("%s",
-"USER CMD PID FD DEV INUM MODE SZ|DV R/W");
+ (void)printf(
+"USER CMD PID FD DEV INUM MODE %s R/W",
+ Oflg ? " OFFS" : "SZ|DV" );
else
- (void)printf("%s",
-"USER CMD PID FD MOUNT INUM MODE SZ|DV R/W");
+ (void)printf(
+"USER CMD PID FD MOUNT INUM MODE %s R/W",
+ Oflg ? " OFFS" : "SZ|DV" );
+
if (checkfile && fsflg == 0)
(void)printf(" NAME\n");
else
@@ -450,11 +457,11 @@
* root directory vnode, if one
*/
if (cwdi.cwdi_rdir)
- vtrans(cwdi.cwdi_rdir, RDIR, FREAD, (long)cwdi.cwdi_rdir);
+ vtrans(NULL, cwdi.cwdi_rdir, RDIR, FREAD, (long)cwdi.cwdi_rdir);
/*
* current working directory vnode
*/
- vtrans(cwdi.cwdi_cdir, CDIR, FREAD, (long)cwdi.cwdi_cdir);
+ vtrans(NULL, cwdi.cwdi_cdir, CDIR, FREAD, (long)cwdi.cwdi_cdir);
#if 0
/*
* Disable for now, since p->p_tracep appears to point to a ktr_desc *
@@ -507,10 +514,10 @@
2*(int)(sizeof(void*)), (long)fdfile.ff_file);
switch (file.f_type) {
case DTYPE_VNODE:
- vtrans(file.f_data, i, file.f_flag, (long)fdfile.ff_file);
+ vtrans(&file, file.f_data, i, file.f_flag, (long)fdfile.ff_file);
break;
case DTYPE_SOCKET:
- socktrans(file.f_data, i);
+ socktrans(&file, file.f_data, i);
break;
case DTYPE_PIPE:
if (checkfile == 0)
@@ -634,7 +641,37 @@
}
static void
-vtrans(struct vnode *vp, int i, int flag, long addr)
+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];
@@ -658,32 +695,20 @@
return;
}
if (nflg)
- (void)printf(" %2llu,%-2llu",
+ (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, "%o", fst.mode);
+ (void)snprintf(mode, sizeof mode, "%6o", fst.mode);
else
strmode(fst.mode, mode);
- (void)printf(" %7"PRIu64" %*s", fst.fileid, nflg ? 5 : 10, 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))
- (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)printf(" %8"PRIu64" %*s", fst.fileid, nflg ? 5 : 10, mode);
+ if (Oflg) {
+ oprint(fp, "");
+ } else {
+ vprint(&vn, &fst);
}
rw[0] = '\0';
if (flag & FREAD)
@@ -996,7 +1021,7 @@
}
static void
-socktrans(struct socket *sock, int i)
+socktrans(struct file *f, struct socket *sock, int i)
{
static const char *stypename[] = {
"unused", /* 0 */
@@ -1209,7 +1234,7 @@
lbuf);
else if (so.so_pcb)
printf(" %jx", (uintmax_t)(uintptr_t)so.so_pcb);
- (void)printf("\n");
+ oprint(f, "\n");
return;
bad:
(void)printf("* error\n");
@@ -1235,7 +1260,7 @@
(fp->f_flag & FWRITE) ? "w" : "r",
(fp->f_flag & FNONBLOCK) ? "n" : "",
(cp.pipe_state & PIPE_ASYNC) ? "a" : "");
- (void)printf("\n");
+ oprint(fp, "\n");
return;
bad:
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