Do not assume PATH_MAX is defined

backport-Do-not-assume-PATH_MAX-is-defined.patch

@@ -0,0 +1,41 @@
+From eea6fbc196872eeca6f02fcfba298f3e1bb62880 Mon Sep 17 00:00:00 2001
+From: Guillem Jover <guillem@hadrons.org>
+Date: Thu, 11 Jan 2024 02:18:07 +0100
+Subject: [PATCH] Do not assume PATH_MAX is defined
+
+---
+ filename.c | 15 +++++++++++++++
+ 1 file changed, 15 insertions(+)
+
+diff --git a/filename.c b/filename.c
+index f910aa5..c6bc49e 100644
+--- a/filename.c
++++ b/filename.c
+@@ -812,9 +812,24 @@ public char * lrealpath(char *path)
+ 	if (!is_fake_pathname(path))
+ 	{
+ #if HAVE_REALPATH
++		/*
++		 * Not all systems support the POSIX.1-2008 realpath() behavior
++		 * of allocating when passing a NULL argument. And PATH_MAX is
++		 * not required to be defined, or might contain an exceedingly
++		 * big value. We assume that if it is not defined (such as on
++		 * GNU/Hurd), then realpath() accepts NULL.
++		 */
++#ifndef PATH_MAX
++		char *rpath;
++
++		rpath = realpath(path, NULL);
++		if (rpath != NULL)
++			return (rpath);
++#else
+ 		char rpath[PATH_MAX];
+ 		if (realpath(path, rpath) != NULL)
+ 			return (save(rpath));
++#endif
+ #endif
+ 	}
+ 	return (save(path));
+-- 
+2.27.0
+

less.spec

@@ -1,6 +1,6 @@
 Name:		less
 Version:	633
-Release:        3
+Release:        4
 Summary:	Less is a pager that displays text files.
 License:	GPLv3+ or BSD
 URL:		http://www.greenwoodsoftware.com/less
@@ -13,6 +13,7 @@ Patch4:         backport-CVE-2024-32487.patch
 Patch5:         backport-Don-t-return-READ_AGAIN-from-iread-if-no-data-has-ye.patch
 Patch6:         backport-Fix-for-previous-fix.patch
 Patch7:         backport-Avoid-stealing-data-from-an-input-program-that-uses-.patch
+Patch8:         backport-Do-not-assume-PATH_MAX-is-defined.patch
 
 BuildRequires:	gcc make ncurses-devel autoconf automake libtool
 
@@ -51,6 +52,9 @@ autoreconf -ivf
 %{_mandir}/man1/*
 
 %changelog
+* Fri May 10 2024 baiguo <baiguo@kylinos.cn> - 633-4
+- Do not assume PATH_MAX is defined 
+
 * Mon Apr 29 2024 huyubiao <huyubiao@huawei.com> - 633-3
 - fix problem when a program piping into less reads from the tty, like sudo asking for password