From 5e697686ff137496f5ede4b1ee21d67ea682186a Mon Sep 17 00:00:00 2001
From: Martchus <martchus@gmx.net>
Date: Tue, 14 Jun 2022 23:14:10 +0200
Subject: [PATCH 3/3] Fix filename buffer overflow

---
 src/libjasper/include/jasper/jas_stream.h | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/src/libjasper/include/jasper/jas_stream.h b/src/libjasper/include/jasper/jas_stream.h
index d8938d1..61a6e66 100644
--- a/src/libjasper/include/jasper/jas_stream.h
+++ b/src/libjasper/include/jasper/jas_stream.h
@@ -77,6 +77,7 @@
 #include <jasper/jas_config.h> /* IWYU pragma: export */
 
 #include <stdio.h>
+#include <limits.h>
 #if defined(JAS_HAVE_FCNTL_H)
 #include <fcntl.h>
 #endif
@@ -100,6 +101,12 @@ extern "C" {
 #define O_BINARY	0
 #endif
 
+#ifdef PATH_MAX
+#define JAS_PATH_MAX PATH_MAX
+#else
+#define JAS_PATH_MAX 4096
+#endif
+
 /*
  * Stream open flags.
  */
@@ -258,7 +265,7 @@ typedef struct {
 typedef struct {
 	int fd;
 	int flags;
-	char pathname[L_tmpnam + 1];
+	char pathname[JAS_PATH_MAX + 1];
 } jas_stream_fileobj_t;
 
 /* Delete underlying file object upon stream close. */
-- 
2.36.1

