[glibc] support: Add xmkfifo

[glibc] support: Add xmkfifo

[Adhemerval Zanella]

https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=e3fdbe9f39747206b9c3fbb0219f29fd5b35d020

commit e3fdbe9f39747206b9c3fbb0219f29fd5b35d020
Author: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Date:   Thu Apr 8 17:36:07 2021 -0300

    support: Add xmkfifo
    
    Wrapper support mkfifo.

Diff:
---
 support/Makefile  |  1 +
 support/xmkfifo.c | 29 +++++++++++++++++++++++++++++
 support/xunistd.h |  1 +
 3 files changed, 31 insertions(+)

diff --git a/support/Makefile b/support/Makefile
index f036a81304..9b50eac117 100644
--- a/support/Makefile
+++ b/support/Makefile
@@ -134,6 +134,7 @@ libsupport-routines = \
   xmemstream \
   xmkdir \
   xmkdirp \
+  xmkfifo \
   xmmap \
   xmprotect \
   xmunmap \
diff --git a/support/xmkfifo.c b/support/xmkfifo.c
new file mode 100644
index 0000000000..a8e196dbc2
--- /dev/null
+++ b/support/xmkfifo.c
@@ -0,0 +1,29 @@
+/* mkfifo with error checking.
+   Copyright (C) 2022 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <https://www.gnu.org/licenses/>.  */
+
+#include <support/check.h>
+#include <support/xunistd.h>
+#include <sys/stat.h>
+
+void
+xmkfifo (const char *pathname, mode_t mode)
+{
+  int r = mkfifo (pathname, mode);
+  if (r < 0)
+    FAIL_EXIT1 ("mkfifo (%s, 0%o): %m", pathname, mode);
+}
diff --git a/support/xunistd.h b/support/xunistd.h
index 0454d83cf1..960a62d412 100644
--- a/support/xunistd.h
+++ b/support/xunistd.h
@@ -61,6 +61,7 @@ void xsymlink (const char *target, const char *linkpath);
 void xchdir (const char *path);
 void xfchmod (int fd, mode_t mode);
 void xchmod (const char *pathname, mode_t mode);
+void xmkfifo (const char *pathname, mode_t mode);
 
 /* Equivalent of "mkdir -p".  */
 void xmkdirp (const char *, mode_t);