[glibc] tests: replace ftruncate by xftruncate

[glibc] tests: replace ftruncate by xftruncate

[Siddhesh Poyarekar]

https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=32043daaafcd59793b9addf7af1bcedb3b666f09

commit 32043daaafcd59793b9addf7af1bcedb3b666f09
Author: Frédéric Bérat <fberat@redhat.com>
Date:   Fri Apr 28 14:21:39 2023 +0200

    tests: replace ftruncate by xftruncate
    
    With fortification enabled, ftruncate calls return result needs to be
    checked, has it gets the __wur macro enabled.
    
    Reviewed-by: Siddhesh Poyarekar <siddhesh@sourceware.org>

Diff:
---
 io/tst-copy_file_range.c  | 2 +-
 posix/tst-getopt-cancel.c | 3 ++-
 stdio-common/tst-perror.c | 3 ++-
 3 files changed, 5 insertions(+), 3 deletions(-)

diff --git a/io/tst-copy_file_range.c b/io/tst-copy_file_range.c
index d1f3aaa5a9..bd64e9c42b 100644
--- a/io/tst-copy_file_range.c
+++ b/io/tst-copy_file_range.c
@@ -166,7 +166,7 @@ short_copy (void)
           inoff = 3;
           xlseek (infd, shift, SEEK_SET);
         }
-      ftruncate (outfd, 0);
+      xftruncate (outfd, 0);
       xlseek (outfd, 0, SEEK_SET);
       outoff = 0;
 
diff --git a/posix/tst-getopt-cancel.c b/posix/tst-getopt-cancel.c
index 7167d1a914..6f49391690 100644
--- a/posix/tst-getopt-cancel.c
+++ b/posix/tst-getopt-cancel.c
@@ -33,6 +33,7 @@
 #include <support/support.h>
 #include <support/temp_file.h>
 #include <support/xthread.h>
+#include <support/xunistd.h>
 
 static bool
 check_stderr (bool expect_errmsg, FILE *stderr_trapped)
@@ -48,7 +49,7 @@ check_stderr (bool expect_errmsg, FILE *stderr_trapped)
       fputs (lineptr, stdout);
     }
   rewind (stderr_trapped);
-  ftruncate (fileno (stderr_trapped), 0);
+  xftruncate (fileno (stderr_trapped), 0);
   return got_errmsg == expect_errmsg;
 }
 
diff --git a/stdio-common/tst-perror.c b/stdio-common/tst-perror.c
index 57835e0c59..b4ab583462 100644
--- a/stdio-common/tst-perror.c
+++ b/stdio-common/tst-perror.c
@@ -9,6 +9,7 @@
 #include <unistd.h>
 #include <wchar.h>
 
+#include <support/xunistd.h>
 
 #define MB_EXP \
   "null mode test 1: Invalid or incomplete multibyte or wide character\n" \
@@ -94,7 +95,7 @@ do_test (void)
     puts ("multibyte test succeeded");
 
   lseek (fd, 0, SEEK_SET);
-  ftruncate (fd, 0);
+  xftruncate (fd, 0);
 
   if (dup2 (fd, 2) == -1)
     {