This patch adds the -mindepth and -maxdepth options to find(1), which

behave as in GNU find (and of course as described in the manual page
    diff included).  I think these options would be useful for some people.

    Some missing $FreeBSD$ tags are also added.

    The patch was slightly modified (send-pr mangling of TABS).

PR:		bin/18941
Submitted by:	Ben Smithurst <ben@scientia.demon.co.uk>

usr.bin/find/Makefile

@@ -1,6 +1,7 @@
 #	@(#)Makefile	8.1 (Berkeley) 6/6/93
 # $FreeBSD$
 
+CFLAGS+=  -Wall
 PROG=	find
 SRCS=	find.c function.c ls.c main.c misc.c operator.c option.c setflags.c
 .PATH:	${.CURDIR}/../../lib/libc/gen

usr.bin/find/extern.h

@@ -80,9 +80,12 @@ PLAN	*c_user __P((char *));
 PLAN	*c_xdev __P((void));
 PLAN	*c_openparen __P((void));
 PLAN	*c_closeparen __P((void));
+PLAN	*c_maxdepth __P((char *));
+PLAN	*c_mindepth __P((char *));
 PLAN	*c_mmin __P((char *));
 PLAN	*c_mtime __P((char *));
 PLAN	*c_not __P((void));
 PLAN	*c_or __P((void));
 
 extern int ftsoptions, isdeprecated, isdepth, isoutput, issort, isxargs;
+extern int mindepth, maxdepth;

usr.bin/find/find.1

@@ -245,6 +245,12 @@ will be displayed instead of the size in bytes.
 If the file is a symbolic link, the pathname of the linked\-to file will be
 displayed preceded by ``\->''.
 The format is identical to that produced by ``ls \-dgils''.
+.It Ic -maxdepth Ar n
+True if the depth of the current file into the tree is less than or equal to
+.Ar n .
+.It Ic -mindepth Ar n
+True if the depth of the current file into the tree is greater than or equal to
+.Ar n .
 .It Ic -mmin Ar n 
 True if the difference between the file last modification time and the time
 .Nm find

usr.bin/find/find.c

@@ -35,7 +35,12 @@
  */
 
 #ifndef lint
+#if 0
 static char sccsid[] = "@(#)find.c	8.5 (Berkeley) 8/5/94";
+#else
+static const char rcsid[] =
+  "$FreeBSD$";
+#endif
 #endif /* not lint */
 
 #include <sys/types.h>
@@ -206,12 +211,21 @@ find_execute(plan, paths)
 			continue;
 		}
 
+		if (mindepth != -1 && entry->fts_level < mindepth)
+			continue;
+
 		/*
 		 * Call all the functions in the execution plan until one is
 		 * false or all have been executed.  This is where we do all
 		 * the work specified by the user on the command line.
 		 */
 		for (p = plan; p && (p->eval)(p, entry); p = p->next);
+
+		if (maxdepth != -1 && entry->fts_level >= maxdepth) {
+			if (fts_set(tree, entry, FTS_SKIP))
+			err(1, "%s", entry->fts_path);
+			continue;
+		}
 	}
 	if (errno)
 		err(1, "fts_read");

usr.bin/find/find.h

@@ -46,7 +46,7 @@ enum ntype {
         N_MTIME, N_NAME,
 	N_NEWER, N_NOGROUP, N_NOT, N_NOUSER, N_OK, N_OPENPAREN, N_OR, N_PATH,
 	N_PERM, N_PRINT, N_PRUNE, N_SIZE, N_TYPE, N_USER, N_XDEV,
-	N_PRINT0, N_DELETE
+	N_PRINT0, N_DELETE, N_MAXDEPTH, N_MINDEPTH
 };
 
 /* node definition */

usr.bin/find/function.c

@@ -35,8 +35,12 @@
  */
 
 #ifndef lint
-static char sccsid[] = "@(#)function.c	8.10 (Berkeley) 5/4/95";
-static char rcsid[] = "$FreeBSD$";
+#if 0
+static const char sccsid[] = "@(#)function.c	8.10 (Berkeley) 5/4/95";
+#else
+static const char rcsid[] =
+  "$FreeBSD$";
+#endif
 #endif /* not lint */
 
 #include <sys/param.h>
@@ -716,6 +720,67 @@ c_ls()
 	return (palloc(N_LS, f_ls));
 }
 
+/*
+ * -maxdepth n functions --
+ *
+ *        Does the same as -prune if the level of the current file is greater
+ *        than the specified maximum depth.
+ *
+ *        Note that -maxdepth and -mindepth are handled specially in
+ *        find_execute() so their f_* functions here do nothing.
+ */
+int
+f_maxdepth(plan, entry)
+	PLAN *plan;
+	FTSENT *entry;
+{
+	return (1);
+}
+
+PLAN *
+c_maxdepth(arg)
+	char *arg;
+{
+	PLAN *new;
+
+	if (*arg == '-')
+		/* all other errors handled by find_parsenum() */
+		errx(1, "-maxdepth: %s: value must be positive", arg);
+
+	new = palloc(N_MAXDEPTH, f_maxdepth);
+	maxdepth = find_parsenum(new, "-maxdepth", arg, NULL);
+	return (new);
+}
+
+/*
+ * -mindepth n functions --
+ *
+ *        True if the current file is at or deeper than the specified minimum
+ *        depth.
+ */
+int
+f_mindepth(plan, entry)
+	PLAN *plan;
+	FTSENT *entry;
+{
+	return (1);
+}
+
+PLAN *
+c_mindepth(arg)
+  char *arg;
+{
+	PLAN *new;
+
+	if (*arg == '-')
+		/* all other errors handled by find_parsenum() */
+		errx(1, "-maxdepth: %s: value must be positive", arg);
+
+	new = palloc(N_MINDEPTH, f_mindepth);
+	mindepth = find_parsenum(new, "-mindepth", arg, NULL);
+	return (new);
+}
+
 /*
  * -mtime n functions --
  *
@@ -1010,9 +1075,6 @@ c_flags(flags_str)
 #endif
 	return new;
 }
-  
-  /*
-
 
 /*
  * -print functions --

usr.bin/find/ls.c

@@ -32,7 +32,12 @@
  */
 
 #ifndef lint
+#if 0
 static char sccsid[] = "@(#)ls.c	8.1 (Berkeley) 6/6/93";
+#else
+static const char rcsid[] =
+  "$FreeBSD$";
+#endif
 #endif /* not lint */
 
 #include <sys/param.h>

usr.bin/find/main.c

@@ -41,7 +41,12 @@ char copyright[] =
 #endif /* not lint */
 
 #ifndef lint
+#if 0
 static char sccsid[] = "@(#)main.c	8.4 (Berkeley) 5/4/95";
+#else
+static const char rcsid[] =
+  "$FreeBSD$";
+#endif
 #endif /* not lint */
 
 #include <sys/types.h>
@@ -67,6 +72,7 @@ int isdepth;			/* do directories on post-order visit */
 int isoutput;			/* user specified output operator */
 int issort;         		/* do hierarchies in lexicographical order */
 int isxargs;			/* don't permit xargs delimiting chars */
+int mindepth = -1, maxdepth = -1; /* minimum and maximum depth */
 
 static void usage __P((void));
 

usr.bin/find/misc.c

@@ -35,7 +35,12 @@
  */
 
 #ifndef lint
+#if 0
 static char sccsid[] = "@(#)misc.c	8.2 (Berkeley) 4/1/94";
+#else
+static const char rcsid[] =
+  "$FreeBSD$";
+#endif
 #endif /* not lint */
 
 #include <sys/types.h>

usr.bin/find/operator.c

@@ -35,7 +35,12 @@
  */
 
 #ifndef lint
+#if 0
 static char sccsid[] = "@(#)operator.c	8.1 (Berkeley) 6/6/93";
+#else
+static const char rcsid[] =
+  "$FreeBSD$";
+#endif
 #endif /* not lint */
 
 #include <sys/types.h>

usr.bin/find/option.c

@@ -84,6 +84,8 @@ static OPTION const options[] = {
 	{ "-inum",	N_INUM,		c_inum,		O_ARGV },
 	{ "-links",	N_LINKS,	c_links,	O_ARGV },
 	{ "-ls",	N_LS,		c_ls,		O_ZERO },
+	{ "-maxdepth",  N_MAXDEPTH,     c_maxdepth,     O_ARGV },
+	{ "-mindepth",  N_MINDEPTH,     c_mindepth,     O_ARGV },
 	{ "-mmin",	N_MMIN,	        c_mmin,	        O_ARGV },
 	{ "-mtime",	N_MTIME,	c_mtime,	O_ARGV },
 	{ "-name",	N_NAME,		c_name,		O_ARGV },