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Add a 'depth (-d#)' flag to du

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patched (context diff), compiled (w/ -Wall) and tested

Submitted by:	John-Mark Gurney <jmg@nike.efn.org>
This commit is contained in:
Marc G. Fournier 1996-10-23 06:53:57 +00:00
parent 845c4ec464
commit 0282769e2d
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=19120
2 changed files with 30 additions and 11 deletions
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8
usr.bin/du/du.1
View file

@ -30,7 +30,7 @@
.\" SUCH DAMAGE.
.\"
.\" @(#)du.1 8.2 (Berkeley) 4/1/94
.\" $Id$
.\" $Id: du.1,v 1.5 1996/08/29 18:05:49 wosch Exp $
.\"
.Dd April 1, 1994
.Dt DU 1
@ -41,7 +41,7 @@
.Sh SYNOPSIS
.Nm du
.Op Fl H | Fl L | Fl P
.Op Fl a | Fl s
.Op Fl a | s | d Ar depth
.Op Fl x
.Op Ar file ...
.Sh DESCRIPTION
@ -68,6 +68,10 @@ All symbolic links are followed.
No symbolic links are followed.
.It Fl a
Display an entry for each file in the file hierarchy.
.It Fl d Ar depth
Displays all directories only
.Ar depth
directories deep.
.It Fl k
Report in 1024-byte (1-Kbyte) blocks rather than the default. Note that
this overrides the

33
usr.bin/du/du.c
View file

@ -66,14 +66,15 @@ main(argc, argv)
FTS *fts;
FTSENT *p;
long blocksize;
int ftsoptions, listdirs, listfiles;
int Hflag, Lflag, Pflag, aflag, ch, notused, rval, sflag;
int ftsoptions, listdirs, listfiles, depth;
int Hflag, Lflag, Pflag, aflag, ch, notused, rval, sflag, dflag;
char **save;
save = argv;
Hflag = Lflag = Pflag = aflag = sflag = 0;
Hflag = Lflag = Pflag = aflag = sflag = dflag = 0;
depth = INT_MAX;
ftsoptions = FTS_PHYSICAL;
while ((ch = getopt(argc, argv, "HLPaksx")) != EOF)
while ((ch = getopt(argc, argv, "HLPad:ksx")) != EOF)
switch (ch) {
case 'H':
Hflag = 1;
@ -99,6 +100,14 @@ main(argc, argv)
case 'x':
ftsoptions |= FTS_XDEV;
break;
case 'd':
dflag = 1;
depth=atoi(optarg);
if(errno == ERANGE) {
(void)fprintf(stderr, "Invalid argument to option d: %s", optarg);
usage();
}
break;
case '?':
default:
usage();
@ -126,12 +135,17 @@ main(argc, argv)
}
if (aflag) {
if (sflag)
if (sflag || dflag)
usage();
listdirs = listfiles = 1;
} else if (sflag)
} else if (sflag) {
if (dflag)
usage();
listdirs = listfiles = 0;
else {
} else if (dflag) {
listfiles = 0;
listdirs = 1;
} else {
listfiles = 0;
listdirs = 1;
}
@ -160,7 +174,8 @@ main(argc, argv)
* or directories and this is post-order of the
* root of a traversal, display the total.
*/
if (listdirs || !listfiles && !p->fts_level)
if ((p->fts_level <= depth && listdirs) ||
(!listfiles && !p->fts_level))
(void)printf("%ld\t%s\n",
howmany(p->fts_number, blocksize),
p->fts_path);
@ -227,6 +242,6 @@ usage()
{
(void)fprintf(stderr,
"usage: du [-H | -L | -P] [-a | -s] [-k] [-x] [file ...]\n");
"usage: du [-H | -L | -P] [-a | -s | -d depth] [-k] [-x] [file ...]\n");
exit(1);
}