1 files changed, 75 insertions, 0 deletions
diff --git a/src/libs/libgroff/maxfilename.cpp b/src/libs/libgroff/maxfilename.cpp
new file mode 100644
index 0000000..5e1defe
--- /dev/null
+++ b/src/libs/libgroff/maxfilename.cpp
@@ -0,0 +1,75 @@
+// -*- C++ -*-
+/* Copyright (C) 1992-2020 Free Software Foundation, Inc.
+     Written by James Clark (jjc@jclark.com)
+
+This file is part of groff.
+
+groff is free software; you can redistribute it and/or modify it under
+the terms of the GNU General Public License as published by the Free
+Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+groff 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 General Public License
+for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>. */
+
+/* file_name_max(dir) does the same as pathconf(dir, _PC_NAME_MAX) */
+
+#include "lib.h"
+
+#include <sys/types.h>
+
+#ifdef HAVE_UNISTD_H
+#include <unistd.h>
+#endif /* HAVE_UNISTD_H */
+
+#ifdef _POSIX_VERSION
+
+size_t file_name_max(const char *fname)
+{
+  return pathconf(fname, _PC_NAME_MAX);
+}
+
+#else /* not _POSIX_VERSION */
+
+#ifdef HAVE_DIRENT_H
+#include <dirent.h>
+#else /* not HAVE_DIRENT_H */
+#ifdef HAVE_SYS_DIR_H
+#include <sys/dir.h>
+#endif /* HAVE_SYS_DIR_H */
+#endif /* not HAVE_DIRENT_H */
+
+#ifndef NAME_MAX
+#ifdef MAXNAMLEN
+#define NAME_MAX MAXNAMLEN
+#endif
+#endif
+
+#ifndef NAME_MAX
+#ifdef MAXNAMELEN
+#define NAME_MAX MAXNAMELEN
+#endif
+#endif
+
+#ifndef NAME_MAX
+#include <stdio.h>
+#ifdef FILENAME_MAX
+#define NAME_MAX FILENAME_MAX
+#endif
+#endif
+
+#ifndef NAME_MAX
+#define NAME_MAX 14
+#endif
+
+size_t file_name_max(const char *)
+{
+  return NAME_MAX;
+}
+
+#endif /* not _POSIX_VERSION */