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Implement an "-x" option to cp(1), for compatibility with Linux and

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feature parity with du(1) and similar:  When set, cp(1) will not traverse
mount points.

Initial patch by:       Graham J Lee   leeg teaching.physics.ox.ac.uk

PR:		bin/88056
Initial patch by: Graham J Lee   leeg teaching.physics.ox.ac.uk
Approved by:	ed (mentor)
MFC after:	1 month
This commit is contained in:
Gavin Atkinson 2010-01-17 09:37:31 +00:00
parent 6c1e384c63
commit f815125fbc
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=202461
3 changed files with 12 additions and 7 deletions
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8
bin/cp/cp.1
View File

@ -32,7 +32,7 @@
.\" @(#)cp.1 8.3 (Berkeley) 4/18/94
.\" $FreeBSD$
.\"
.Dd October 27, 2006
.Dd January 17, 2010
.Dt CP 1
.Os
.Sh NAME
@ -45,7 +45,7 @@
.Op Fl H | Fl L | Fl P
.Oc
.Op Fl f | i | n
.Op Fl alpv
.Op Fl alpvx
.Ar source_file target_file
.Nm
.Oo
@ -53,7 +53,7 @@
.Op Fl H | Fl L | Fl P
.Oc
.Op Fl f | i | n
.Op Fl alpv
.Op Fl alpvx
.Ar source_file ... target_directory
.Sh DESCRIPTION
In the first synopsis form, the
@ -183,6 +183,8 @@ permissions.
Cause
.Nm
to be verbose, showing files as they are copied.
.It Fl x
File system mount points are not traversed.
.El
.Pp
For each destination file that already exists, its contents are

7
bin/cp/cp.c
View File

@ -101,8 +101,9 @@ main(int argc, char *argv[])
int Hflag, Lflag, Pflag, ch, fts_options, r, have_trailing_slash;
char *target;
fts_options = FTS_NOCHDIR | FTS_PHYSICAL;
Hflag = Lflag = Pflag = 0;
while ((ch = getopt(argc, argv, "HLPRafilnprv")) != -1)
while ((ch = getopt(argc, argv, "HLPRafilnprvx")) != -1)
switch (ch) {
case 'H':
Hflag = 1;
@ -150,6 +151,9 @@ main(int argc, char *argv[])
case 'v':
vflag = 1;
break;
case 'x':
fts_options |= FTS_XDEV;
break;
default:
usage();
break;
@ -160,7 +164,6 @@ main(int argc, char *argv[])
if (argc < 2)
usage();
fts_options = FTS_NOCHDIR | FTS_PHYSICAL;
if (Rflag && rflag)
errx(1, "the -R and -r options may not be specified together");
if (rflag)

4
bin/cp/utils.c
View File

@ -518,8 +518,8 @@ usage(void)
{
(void)fprintf(stderr, "%s\n%s\n",
"usage: cp [-R [-H | -L | -P]] [-f | -i | -n] [-alpv] source_file target_file",
" cp [-R [-H | -L | -P]] [-f | -i | -n] [-alpv] source_file ... "
"usage: cp [-R [-H | -L | -P]] [-f | -i | -n] [-alpvx] source_file target_file",
" cp [-R [-H | -L | -P]] [-f | -i | -n] [-alpvx] source_file ... "
"target_directory");
exit(EX_USAGE);
}