Avoid usage of PATH_MAX.
Submitted to bug-less@gnu.org.
From ef652341ed8b2c14ac40312ccd4ed329cb69fd0c Mon Sep 17 00:00:00 2001
From: Jan Nieuwenhuizen <janneke@gnu.org>
Date: Sat, 7 Mar 2020 14:57:19 +0100
Subject: [PATCH] Avoid usage of PATH_MAX.
* filename.c (lrealpath): Have realpath allocate the buffer. Fixes
compilation on the Hurd and avoids possible buffer overflow on other
systems.
---
filename.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/filename.c b/filename.c
index e420837..faa71b0 100644
--- a/filename.c
+++ b/filename.c
@@ -795,9 +795,9 @@ lrealpath(path)
char *path;
{
#if HAVE_REALPATH
- char rpath[PATH_MAX];
- if (realpath(path, rpath) != NULL)
- return (save(rpath));
+ char *rpath = NULL;
+ if ((rpath = realpath(path, rpath)) != NULL)
+ return (rpath);
#endif
return (save(path));
}
--
2.24.0
