From 7fd690e53e597ddca650e1fad04721b61eba973b Mon Sep 17 00:00:00 2001
From: Zainab Olalekan <ztolalekan@outlook.com>
Date: Tue, 1 Aug 2023 10:09:17 -0500
Subject: [PATCH] Fix libcom test failure on RTEMS

---
 modules/libcom/test/epicsStringTest.c | 19 ++++++++++++++++---
 1 file changed, 16 insertions(+), 3 deletions(-)

diff --git a/modules/libcom/test/epicsStringTest.c b/modules/libcom/test/epicsStringTest.c
index b5f744b37..18264cbae 100644
--- a/modules/libcom/test/epicsStringTest.c
+++ b/modules/libcom/test/epicsStringTest.c
@@ -14,6 +14,7 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
+#include <fcntl.h>
 
 #include "epicsUnitTest.h"
 #include "epicsString.h"
@@ -198,10 +199,22 @@ void testStrTok(void)
 static
 void testEpicsStrPrintEscaped(void)
 {   
-    const char *filename = "testEpicsStrPrintEscaped";
+    const char *filename;
+    FILE *testFile;
+    FILE *readOnly;
+
+    #ifdef __rtems__
+        /* ensure there is a writable area */
+	    mkdir( "/tmp", S_IRWXU );
+	    filename = "/tmp/testEpicsStrPrintEscaped";
+    #else
+	    filename = "testEpicsStrPrintEscaped";
+    #endif
+
+
     // Avoid printing to stdout by redirecting everything to a file
-    FILE *testFile = fopen(filename, "a");
-    FILE *readOnly = fopen(filename, "r");
+    testFile = fopen(filename, "a");
+    readOnly = fopen(filename, "r");
 
     testDiag("testEpicsStrPrintEscaped()");