>Number: 189057
>Category: bin
>Synopsis: [PATCH] Adding an option to /bin/ls to display file
>permissions in octal
>Confidential: no
>Severity: non-critical
>Priority: low
>Responsible: freebsd-bugs
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: change-request
>Submitter-Id: current-users
>Arrival-Date: Sun Apr 27 17:50:00 UTC 2014
>Closed-Date:
>Last-Modified:
>Originator: A.J. van Werven
>Release: 9.2-RELEASE-p3
>Organization:
>Environment:
>Description:
A user of the FreeBSD Forums requested that an option be added to /bin/ls that
makes the long format (-l option) display the file permissions in octal rather
than symbolically, e.g. instead of "-rwxr-xr-x" it would say "-0755". The
attached patch does just that and has been proposed on freebsd-hackers@, where
it was suggested that a PR be submitted to prevent it from "getting lost".
If the proposed addition has already been incorporated or rejected, this PR can
be closed.
>How-To-Repeat:
N/A: this is a feature request, not a bug report.
>Fix:
Apply the attached patch. It includes an update to the usage message and to the
man page, although the STANDARDS part probably needs some reviewing.
Patch attached with submission follows:
diff -ruN ls.orig/ls.1 ls/ls.1
--- ls.orig/ls.1 2014-04-08 18:22:46.000000000 +0200
+++ ls/ls.1 2014-04-08 19:04:01.000000000 +0200
@@ -40,7 +40,7 @@
.Nd list directory contents
.Sh SYNOPSIS
.Nm
-.Op Fl ABCFGHILPRSTUWZabcdfghiklmnopqrstuwxy1,
+.Op Fl ABCFGHILOPRSTUWZabcdfghiklmnopqrstuwxy1,
.Op Fl D Ar format
.Op Ar
.Sh DESCRIPTION
@@ -150,6 +150,11 @@
This option cancels the
.Fl P
option.
+.It Fl O
+When used with the
+.Fl l
+option, display the file permissions in octal notation. Note that the file type
+is still displayed symbolically.
.It Fl P
If argument is a symbolic link, list the link itself rather than the
object the link references.
@@ -526,6 +531,15 @@
use
.Xr getfacl 1
to do this.
+.Pp
+When the
+.Fl O
+option is used, the entry type is displayed as described above, but the
+permissions are displayed in
+.Dq raw
+octal mode, consisting of four octal digits. The first digit indicates whether
+any of the set-user-ID, set-group-ID or sticky bits have been set. The other
+three digits represent the owner, group and other permissions respectively.
.Sh ENVIRONMENT
The following environment variables affect the execution of
.Nm :
@@ -739,9 +753,9 @@
.Xr getfmac 8
.Sh STANDARDS
With the exception of options
-.Fl I , g , n
-and
-.Fl o ,
+.Fl I , g , n, o
+and possibly
+.Fl O ,
the
.Nm
utility conforms to
diff -ruN ls.orig/ls.c ls/ls.c
--- ls.orig/ls.c 2014-04-08 18:22:46.000000000 +0200
+++ ls/ls.c 2014-04-08 19:03:27.000000000 +0200
@@ -120,6 +120,7 @@
int f_notabs; /* don't use tab-separated multi-col output */
static int f_numericonly; /* don't convert uid/gid to name */
int f_octal; /* show unprintables as \xxx */
+ int f_octalperms; /* print permissions and modes in octal */
int f_octal_escape; /* like f_octal but use C escapes if possible */
static int f_recursive; /* ls subdirectories also */
static int f_reversesort; /* reverse whatever sort is used */
@@ -186,7 +187,7 @@
if (getenv("LS_SAMESORT"))
f_samesort = 1;
while ((ch = getopt(argc, argv,
- "1ABCD:FGHILPRSTUWXZabcdfghiklmnopqrstuwxy,")) != -1) {
+ "1ABCD:FGHILOPRSTUWXZabcdfghiklmnopqrstuwxy,")) != -1) {
switch (ch) {
/*
* The -1, -C, -x and -l options all override each other so
@@ -272,6 +273,9 @@
fts_options |= FTS_LOGICAL;
f_nofollow = 0;
break;
+ case 'O':
+ f_octalperms=1;
+ break;
case 'P':
fts_options &= ~FTS_COMFOLLOW;
fts_options &= ~FTS_LOGICAL;
diff -ruN ls.orig/ls.h ls/ls.h
--- ls.orig/ls.h 2014-04-08 18:22:46.000000000 +0200
+++ ls/ls.h 2014-04-08 16:18:33.000000000 +0200
@@ -47,6 +47,7 @@
extern int f_inode; /* print inode */
extern int f_longform; /* long listing format */
extern int f_octal; /* print unprintables in octal */
+extern int f_octalperms; /* print permissions and modes in octal */
extern int f_octal_escape; /* like f_octal but use C escapes if possible */
extern int f_nonprint; /* show unprintables as ? */
extern int f_samesort; /* sort time and name in same direction */
diff -ruN ls.orig/print.c ls/print.c
--- ls.orig/print.c 2014-04-08 18:22:46.000000000 +0200
+++ ls/print.c 2014-04-08 22:32:54.000000000 +0200
@@ -73,6 +73,7 @@
static int colortype(mode_t);
#endif
static void aclmode(char *, const FTSENT *);
+static void octalmode(int, char *);
#define IS_NOPRINT(p) ((p)->fts_number == NO_PRINT)
@@ -141,12 +142,15 @@
#ifdef COLORLS
int color_printed = 0;
#endif
+ void (*strmodefcn)(int, char *);
if ((dp->list == NULL || dp->list->fts_level != FTS_ROOTLEVEL) &&
(f_longform || f_size)) {
(void)printf("total %lu\n", howmany(dp->btotal, blocksize));
}
+ strmodefcn = (f_octalperms > 0) ? octalmode : strmode;
+
for (p = dp->list; p; p = p->fts_link) {
if (IS_NOPRINT(p))
continue;
@@ -157,7 +161,7 @@
if (f_size)
(void)printf("%*jd ",
dp->s_block, howmany(sp->st_blocks, blocksize));
- strmode(sp->st_mode, buf);
+ strmodefcn(sp->st_mode, buf);
aclmode(buf, p);
np = p->fts_pointer;
(void)printf("%s %*u %-*s %-*s ", buf, dp->s_nlink,
@@ -684,3 +688,44 @@
buf[10] = '+';
acl_free(facl);
}
+
+/*
+ * Print file mode and permissions in octal mode. Like the regular strmode(),
+ * add a space at the end for (potential) use by aclmode().
+ */
+static void
+octalmode(int mode, char *bp)
+{
+ /* Print the file type symbolically, this makes no sense in octal. */
+ switch (mode & S_IFMT) {
+ case S_IFDIR:
+ *bp++ = 'd';
+ break;
+ case S_IFCHR:
+ *bp++ = 'c';
+ break;
+ case S_IFBLK:
+ *bp++ = 'b';
+ break;
+ case S_IFREG:
+ *bp++ = '-';
+ break;
+ case S_IFLNK:
+ *bp++ = 'l';
+ break;
+ case S_IFSOCK:
+ *bp++ = 's';
+ break;
+ case S_IFIFO:
+ *bp++ = 'p';
+ break;
+ case S_IFWHT:
+ *bp++ = 'w';
+ break;
+ default:
+ *bp++ = '?';
+ break;
+ }
+ (void)snprintf(bp, 6, "%o%o%o%o ", (mode & 0007000) >> 9,
+ (mode & S_IRWXU) >> 6, (mode & S_IRWXG) >> 3, mode & S_IRWXO);
+}
diff -ruN ls.orig/util.c ls/util.c
--- ls.orig/util.c 2014-04-08 18:22:46.000000000 +0200
+++ ls/util.c 2014-04-08 17:17:01.000000000 +0200
@@ -222,9 +222,9 @@
{
(void)fprintf(stderr,
#ifdef COLORLS
- "usage: ls [-ABCFGHILPRSTUWZabcdfghiklmnopqrstuwxy1,] [-D format]"
+ "usage: ls [-ABCFGHILOPRSTUWZabcdfghiklmnopqrstuwxy1,] [-D format]"
#else
- "usage: ls [-ABCFHILPRSTUWZabcdfghiklmnopqrstuwxy1,] [-D format]"
+ "usage: ls [-ABCFHILOPRSTUWZabcdfghiklmnopqrstuwxy1,] [-D format]"
#endif
" [file ...]\n");
exit(1);
>Release-Note:
>Audit-Trail:
>Unformatted:
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