[glibc] tst-fopen-threaded.c: Delete temporary file

[H.J. Lu]

https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=e7db5150603bb2224a2bfd9628cae04ddcbe49e3

commit e7db5150603bb2224a2bfd9628cae04ddcbe49e3
Author: H.J. Lu <hjl.tools@gmail.com>
Date:   Sat Jul 19 07:43:27 2025 -0700

    tst-fopen-threaded.c: Delete temporary file
    
    Update tst-fopen-threaded.c to call support_create_temp_directory to
    create a temporary directory and open "file" in the temporary directory,
    instead of using /tmp/openclosetest and leaving it behind.
    
    This partially fixes BZ #33182.
    
    Signed-off-by: H.J. Lu <hjl.tools@gmail.com>
    Reviewed-by: Adhemerval Zanella  <adhemerval.zanella@linaro.org>

Diff:
---
 sysdeps/pthread/tst-fopen-threaded.c | 14 ++++++++++++--
 1 file changed, 12 insertions(+), 2 deletions(-)

diff --git a/sysdeps/pthread/tst-fopen-threaded.c b/sysdeps/pthread/tst-fopen-threaded.c
index ade58ad19e..c17f1eaa13 100644
--- a/sysdeps/pthread/tst-fopen-threaded.c
+++ b/sysdeps/pthread/tst-fopen-threaded.c
@@ -34,11 +34,13 @@
 #include <stdio.h>
 #include <string.h>
 #include <unistd.h>
+#include <stdlib.h>
 
 #include <support/check.h>
 #include <support/temp_file.h>
 #include <support/xstdio.h>
 #include <support/xthread.h>
+#include <support/support.h>
 
 #define NUM_THREADS 100
 #define ITERS 10
@@ -111,7 +113,8 @@ threadOpenCloseRoutine (void *argv)
   /* Wait for all threads to be ready to call fopen and fclose.  */
   xpthread_barrier_wait (&barrier);
 
-  FILE *fd = xfopen ("/tmp/openclosetest", "w+");
+  char *file = (char *) argv;
+  FILE *fd = xfopen (file, "w+");
   xfclose (fd);
   return NULL;
 }
@@ -235,6 +238,10 @@ do_test (void)
       xfclose (fd_file);
     }
 
+  char *tempdir = support_create_temp_directory ("openclosetest-");
+  char *file = xasprintf ("%s/file", tempdir);
+  add_temp_file (file);
+
   /* Test 3: Concurrent open/close.  */
   for (int reps = 1; reps <= ITERS; reps++)
     {
@@ -243,7 +250,7 @@ do_test (void)
         {
           threads[i] =
             xpthread_create (support_small_stack_thread_attribute (),
-                             threadOpenCloseRoutine, NULL);
+                             threadOpenCloseRoutine, file);
         }
       for (int i = 0; i < NUM_THREADS; i++)
         {
@@ -252,6 +259,9 @@ do_test (void)
       xpthread_barrier_destroy (&barrier);
     }
 
+  free (file);
+  free (tempdir);
+
   return 0;
 }