Adding upstream version 9.4.upstream/9.4upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 58 insertions, 0 deletions

diff --git a/lib/mkfifo.c b/lib/mkfifo.c
new file mode 100644
index 0000000..5ad8103
--- /dev/null
+++ b/lib/mkfifo.c
@@ -0,0 +1,58 @@
+/* Create a named fifo.
+   Copyright (C) 2009-2023 Free Software Foundation, Inc.
+
+   This file 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 3 of the
+   License, or (at your option) any later version.
+
+   This file 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 this program.  If not, see <https://www.gnu.org/licenses/>.  */
+
+/* written by Eric Blake */
+
+#include <config.h>
+
+#include <sys/stat.h>
+
+#include <errno.h>
+#include <string.h>
+
+#if !HAVE_MKFIFO
+/* Mingw lacks mkfifo; always fail with ENOSYS.  */
+
+int
+mkfifo (_GL_UNUSED char const *name, _GL_UNUSED mode_t mode)
+{
+  errno = ENOSYS;
+  return -1;
+}
+
+#else /* HAVE_MKFIFO */
+
+# undef mkfifo
+
+/* Create a named fifo FILE, with access permissions in MODE.  Work
+around trailing slash bugs.  */
+
+int
+rpl_mkfifo (char const *name, mode_t mode)
+{
+# if MKFIFO_TRAILING_SLASH_BUG
+  size_t len = strlen (name);
+  if (len && name[len - 1] == '/')
+    {
+      struct stat st;
+      if (stat (name, &st) == 0 || errno == EOVERFLOW)
+        errno = EEXIST;
+      return -1;
+    }
+# endif
+  return mkfifo (name, mode);
+}
+#endif /* HAVE_MKFIFO */