Added -b option to display unprintables in octal.

PR: 1315

bin/ls/extern.h

@@ -31,7 +31,7 @@
  * SUCH DAMAGE.
  *
  *	from: @(#)extern.h	8.1 (Berkeley) 5/31/93
- *	$Id: extern.h,v 1.4 1997/02/22 14:03:54 peter Exp $
+ *	$Id: extern.h,v 1.5 1997/08/07 15:33:45 steve Exp $
  */
 
 int	 acccmp __P((const FTSENT *, const FTSENT *));
@@ -49,3 +49,5 @@ void	 printcol __P((DISPLAY *));
 void	 printlong __P((DISPLAY *));
 void	 printscol __P((DISPLAY *));
 void	 usage __P((void));
+int	 len_octal __P((char *, int));
+int	 prn_octal __P((char *));

bin/ls/ls.1

@@ -33,7 +33,7 @@
 .\" SUCH DAMAGE.
 .\"
 .\"     @(#)ls.1	8.7 (Berkeley) 7/29/94
-.\"	$Id: ls.1,v 1.15 1997/09/18 06:55:21 charnier Exp $
+.\"	$Id: ls.1,v 1.16 1997/12/25 09:36:39 hoek Exp $
 .\"
 .Dd July 29, 1994
 .Dt LS 1
@@ -43,7 +43,7 @@
 .Nd list directory contents
 .Sh SYNOPSIS
 .Nm ls
-.Op Fl ACFLRTWacdfgikloqrstu1
+.Op Fl ACFLRTWabcdfgikloqrstu1
 .Op Ar file ...
 .Sh DESCRIPTION
 For each operand that names a
@@ -100,6 +100,9 @@ Display whiteouts when scanning directories.
 .It Fl a
 Include directory entries whose names begin with a
 dot (.).
+.It Fl b
+Force printing of non-graphic characters in file names as \\xxx,
+where xxx is the numeric value of the character in octal.
 .It Fl c
 Use time when file status was last changed for sorting or printing.
 .It Fl d

bin/ls/ls.c

@@ -45,7 +45,7 @@ static const char copyright[] =
 static char sccsid[] = "@(#)ls.c	8.5 (Berkeley) 4/2/94";
 #else
 static const char rcsid[] =
-	"$Id: ls.c,v 1.16 1997/08/07 22:28:23 steve Exp $";
+	"$Id: ls.c,v 1.17 1997/09/18 06:42:27 sef Exp $";
 #endif
 #endif /* not lint */
 
@@ -88,6 +88,7 @@ int f_longform;			/* long listing format */
 int f_newline;			/* if precede with newline */
 int f_nonprint;			/* show unprintables as ? */
 int f_nosort;			/* don't sort output */
+int f_octal;			/* show unprintables as \xxx */
 int f_recursive;		/* ls subdirectories also */
 int f_reversesort;		/* reverse whatever sort is used */
 int f_sectime;			/* print the real time for all files */
@@ -135,7 +136,7 @@ main(argc, argv)
 		f_listdot = 1;
 
 	fts_options = FTS_PHYSICAL;
-	while ((ch = getopt(argc, argv, "1ACFLRTWacdfgikloqrstu")) != -1) {
+	while ((ch = getopt(argc, argv, "1ACFLRTWabcdfgikloqrstu")) != -1) {
 		switch (ch) {
 		/*
 		 * The -1, -C and -l options all override each other so shell
@@ -199,6 +200,7 @@ main(argc, argv)
 			break;
 		case 'q':
 			f_nonprint = 1;
+			f_octal = 0;
 			break;
 		case 'r':
 			f_reversesort = 1;
@@ -215,6 +217,10 @@ main(argc, argv)
 		case 'W':
 			f_whiteout = 1;
 			break;
+		case 'b':
+		        f_octal = 1;
+			f_nonprint = 0;
+			break;
 		default:
 		case '?':
 			usage();
@@ -426,6 +432,10 @@ display(p, list)
 			prcopy(cur->fts_name, cur->fts_name, cur->fts_namelen);
 		if (cur->fts_namelen > maxlen)
 			maxlen = cur->fts_namelen;
+		if (f_octal) {
+		        int t = len_octal(cur->fts_name, cur->fts_namelen);
+			if (t > maxlen) maxlen = t;
+		}		        
 		if (needstats) {
 			sp = cur->fts_statp;
 			if (sp->st_blocks > maxblock)

bin/ls/ls.h

@@ -35,7 +35,7 @@
  * SUCH DAMAGE.
  *
  *	from: @(#)ls.h	8.1 (Berkeley) 5/31/93
- *	$Id: ls.h,v 1.6 1997/04/29 10:03:05 dfr Exp $
+ *	$Id: ls.h,v 1.7 1997/08/07 15:33:48 steve Exp $
  */
 
 #define NO_PRINT	1
@@ -46,6 +46,7 @@ extern int f_accesstime;	/* use time of last access */
 extern int f_flags;		/* show flags associated with a file */
 extern int f_inode;		/* print inode */
 extern int f_longform;		/* long listing format */
+extern int f_octal;		/* print unprintables in octal */
 extern int f_sectime;		/* print the real time for all files */
 extern int f_size;		/* list size in short listing */
 extern int f_statustime;	/* use time of last mode change */

bin/ls/print.c

@@ -39,7 +39,7 @@
 static char sccsid[] = "@(#)print.c	8.4 (Berkeley) 4/17/94";
 #else
 static const char rcsid[] =
-	"$Id: print.c,v 1.13 1997/08/07 15:33:48 steve Exp $";
+	"$Id: print.c,v 1.14 1997/08/07 22:28:24 steve Exp $";
 #endif
 #endif /* not lint */
 
@@ -127,7 +127,8 @@ printlong(dp)
 			printtime(sp->st_ctime);
 		else
 			printtime(sp->st_mtime);
-		(void)printf("%s", p->fts_name);
+		if (f_octal) (void)prn_octal(p->fts_name);
+		else (void)printf("%s", p->fts_name);
 		if (f_type)
 			(void)printtype(sp->st_mode);
 		if (S_ISLNK(sp->st_mode))
@@ -222,7 +223,7 @@ printaname(p, inodefield, sizefield)
 	if (f_size)
 		chcnt += printf("%*qd ",
 		    (int)sizefield, howmany(sp->st_blocks, blocksize));
-	chcnt += printf("%s", p->fts_name);
+	chcnt += f_octal ? prn_octal(p->fts_name) : printf("%s", p->fts_name);
 	if (f_type)
 		chcnt += printtype(sp->st_mode);
 	return (chcnt);
@@ -303,5 +304,9 @@ printlink(p)
 		return;
 	}
 	path[lnklen] = '\0';
-	(void)printf(" -> %s", path);
+	if (f_octal) {
+	    (void)printf(" -> ");
+	    (void)prn_octal(path);
+	}
+	else (void)printf(" -> %s", path);
 }

bin/ls/util.c

@@ -39,7 +39,7 @@
 static char sccsid[] = "@(#)util.c	8.3 (Berkeley) 4/2/94";
 #else
 static const char rcsid[] =
-	"$Id: util.c,v 1.10 1997/08/07 15:33:50 steve Exp $";
+	"$Id: util.c,v 1.11 1997/08/07 22:28:25 steve Exp $";
 #endif
 #endif /* not lint */
 
@@ -47,6 +47,7 @@ static const char rcsid[] =
 #include <sys/stat.h>
 
 #include <ctype.h>
+#include <err.h>
 #include <fts.h>
 #include <stdio.h>
 #include <stdlib.h>
@@ -68,6 +69,44 @@ prcopy(src, dest, len)
 	}
 }
 
+/*
+ * The fts system makes it difficult to replace fts_name with a different-
+ * sized string, so we just calculate the real length here and do the
+ * conversion in prn_octal()
+ */
+int
+len_octal(s, len)
+        char *s;
+	int len;
+{
+        int r;
+
+	while (len--)
+	    if (isprint(*s++)) r++; else r += 4;
+	return r;
+}
+
+int
+prn_octal(s)
+        char *s;
+{
+        unsigned char ch;
+	int len = 0;
+	
+        while ((ch = *s++))
+	{
+	    if (isprint(ch)) putchar(ch), len++;
+	    else {
+		    putchar('\\');
+		    putchar('0' + (ch >> 6));
+		    putchar('0' + ((ch >> 3) & 3));
+		    putchar('0' + (ch & 3));
+		    len += 4;
+	    }
+	}
+	return len;
+}
+
 void
 usage()
 {