zte's code,first commit
Change-Id: I9a04da59e459a9bc0d67f101f700d9d7dc8d681b
diff --git a/ap/build/uClibc/libc/sysdeps/linux/common/seteuid.c b/ap/build/uClibc/libc/sysdeps/linux/common/seteuid.c
new file mode 100644
index 0000000..3e1611d
--- /dev/null
+++ b/ap/build/uClibc/libc/sysdeps/linux/common/seteuid.c
@@ -0,0 +1,39 @@
+/*
+ * Copyright (C) 2000-2006 Erik Andersen <andersen@uclibc.org>
+ *
+ * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
+ */
+
+#include <unistd.h>
+#include <stdio.h>
+#include <errno.h>
+#include <pwd.h>
+#include <sys/types.h>
+#include <sys/syscall.h>
+
+#if !defined __UCLIBC_LINUX_SPECIFIC__
+#undef __NR_setresuid
+#undef __NR_setresuid32
+#endif
+
+int seteuid(uid_t uid)
+{
+ int result;
+
+ if (uid == (uid_t) ~0)
+ {
+ __set_errno (EINVAL);
+ return -1;
+ }
+
+#if (defined __NR_setresuid || defined __NR_setresuid32) && defined __USE_GNU
+ result = setresuid(-1, uid, -1);
+ if (result == -1 && errno == ENOSYS)
+ /* Will also set the saved user ID if euid != uid,
+ * making it impossible to switch back...*/
+#endif
+ result = setreuid(-1, uid);
+
+ return result;
+}
+libc_hidden_def(seteuid)