AIX implementation of setreuid.

sysdeps/unix/sysv/aix/setreuid.c

@@ -0,0 +1,41 @@
+/* Copyright (C) 2000 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 Library General Public License as
+   published by the Free Software Foundation; either version 2 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
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#include <unistd.h>
+
+/* is there a reason *NOT* to include <sys/id.h>? */
+/* If so #define ID_EFFECTIVE and ID_REAL         */
+#include <sys/id.h>
+
+extern int setuidx (int mask, uid_t uid);
+
+int
+__setreuid (uid_t ruid, uid_t euid)
+{
+  int res;
+
+  if (ruid == euid)
+    return setuidx (ID_EFFECTIVE | ID_REAL, euid);
+
+  res = setuidx (ID_REAL, ruid);
+  if (res == 0)
+    res = setuidx (ID_EFFECTIVE, euid);
+
+  return res;
+}
+strong_alias (__setreuid, setreuid)