git: 77afa8bc52fc - stable/13 - find: Allow '/' to be used with -perm for GNU compatibility

The branch stable/13 has been updated by jhb:

URL: https://cgit.FreeBSD.org/src/commit/?id=77afa8bc52fcfbf3960751fe8589171dfcc9f9bf

commit 77afa8bc52fcfbf3960751fe8589171dfcc9f9bf
Author:     Ricardo Branco <rbranco@suse.de>
AuthorDate: 2024-01-15 18:35:27 +0000
Commit:     John Baldwin <jhb@FreeBSD.org>
CommitDate: 2024-04-08 17:33:29 +0000

    find: Allow '/' to be used with -perm for GNU compatibility
    
    In 2005, Gnu find deprecated '+' as the leading character for the -perm
    argument, instead preferring '/' with the same meaning. Implement that
    behavior here, and document it in the man page.
    
    Reviewed by: imp, emaste
    Pull Request: https://github.com/freebsd/freebsd-src/pull/1060
    
    (cherry picked from commit 2a121b97e9673ff37062c9fa026eee969940d2e2)
---
 usr.bin/find/find.1     | 19 ++++++++++++++++---
 usr.bin/find/function.c |  2 +-
 2 files changed, 17 insertions(+), 4 deletions(-)

diff --git a/usr.bin/find/find.1 b/usr.bin/find/find.1
index afa4c7ab8215..a73196180e7c 100644
--- a/usr.bin/find/find.1
+++ b/usr.bin/find/find.1
@@ -30,7 +30,7 @@
 .\"
 .\"	@(#)find.1	8.7 (Berkeley) 5/9/95
 .\"
-.Dd December 22, 2023
+.Dd January 15, 2024
 .Dt FIND 1
 .Os
 .Sh NAME
@@ -759,7 +759,7 @@ Slashes
 .Pq Dq Li /
 are treated as normal characters and do not have to be
 matched explicitly.
-.It Ic -perm Oo Cm - Ns | Ns Cm + Oc Ns Ar mode
+.It Ic -perm Oo Cm - Ns | Ns Cm + Ns | Ns Cm / Oc Ns Ar mode
 The
 .Ar mode
 may be either symbolic (see
@@ -788,11 +788,14 @@ are set in the file's mode bits.
 If the
 .Ar mode
 is preceded by a plus
-.Pq Dq Li + ,
+.Pq Dq Li +
 this primary evaluates to true
 if any of the bits in the
 .Ar mode
 are set in the file's mode bits.
+A slash
+.Pq Dq Li /
+is also accepted with the same meaning as plus for compatibility with GNU find.
 Otherwise, this primary evaluates to true if
 the bits in the
 .Ar mode
@@ -1118,6 +1121,16 @@ option was inspired by the equivalent
 and
 .Xr sed 1
 options.
+.Pp
+The
+.Ic -perm
+primary accepts a leading slash
+.Pq Dq Li /
+as an alias for a leading plus
+.Pq Dq Li +
+for its argument as an extension of
+.St -p1003.1-2001
+to be compatible with GNU find.
 .Sh HISTORY
 A simple
 .Nm
diff --git a/usr.bin/find/function.c b/usr.bin/find/function.c
index d887c8479099..9c1fd4df8731 100644
--- a/usr.bin/find/function.c
+++ b/usr.bin/find/function.c
@@ -1343,7 +1343,7 @@ c_perm(OPTION *option, char ***argvp)
 	if (*perm == '-') {
 		new->flags |= F_ATLEAST;
 		++perm;
-	} else if (*perm == '+') {
+	} else if (*perm == '+' || *perm == '/') {
 		new->flags |= F_ANY;
 		++perm;
 	}