From: Jim Meyering <jim@meyering.net>
Date: Tue, 19 May 1998 15:06:49 +0000 (+0000)
Subject: .
X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=07d201fb10f5f9e48656740041eba128e0f9c467;p=pspp

.
---

diff --git a/lib/lchown.c b/lib/lchown.c
new file mode 100644
index 0000000000..b15233e246
--- /dev/null
+++ b/lib/lchown.c
@@ -0,0 +1,49 @@
+/* Provide a stub lchown function for systems that lack it.
+   Copyright (C) 1998 Free Software Foundation, Inc.
+
+   This program 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 2, or (at your option)
+   any later version.
+
+   This program 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, write to the Free Software Foundation,
+   Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
+
+/* written by Jim Meyering */
+
+#include <config.h>
+
+/* Disable the definition of lchown to rpl_lchown (from config.h) in this
+   file.  Otherwise, we'd get conflicting prototypes for rpl_lchown on
+   most systems.  */
+#undef lchown
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <errno.h>
+#ifndef errno
+extern int errno;
+#endif
+
+/* Work just like chown, except when FILE is a symbolic link.
+   In that case, set errno to ENOSYS and return -1.  */
+
+int
+rpl_lchown (const chat *file, uid_t uid, gid_t gid)
+{
+  struct stat stats;
+
+  if (lstat (file, &stats) && S_ISLNK (stats.st_mode))
+    {
+      errno = ENOSYS;
+      return -1;
+    }
+
+  return chown (file, uid, gid);
+}