Avoid usage of PATH_MAX. Submitted to bug-less@gnu.org. From ef652341ed8b2c14ac40312ccd4ed329cb69fd0c Mon Sep 17 00:00:00 2001 From: Jan Nieuwenhuizen 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