zte's code,first commit
Change-Id: I9a04da59e459a9bc0d67f101f700d9d7dc8d681b
diff --git a/ap/build/uClibc/libc/sysdeps/linux/common/setresgid.c b/ap/build/uClibc/libc/sysdeps/linux/common/setresgid.c
new file mode 100644
index 0000000..95decc2
--- /dev/null
+++ b/ap/build/uClibc/libc/sysdeps/linux/common/setresgid.c
@@ -0,0 +1,41 @@
+/* vi: set sw=4 ts=4: */
+/*
+ * setresgid() for uClibc
+ *
+ * Copyright (C) 2000-2006 Erik Andersen <andersen@uclibc.org>
+ *
+ * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
+ */
+
+#include <sys/syscall.h>
+#ifdef __USE_GNU
+#include <unistd.h>
+
+#if defined(__NR_setresgid32)
+# undef __NR_setresgid
+# define __NR_setresgid __NR_setresgid32
+
+_syscall3(int, setresgid, gid_t, rgid, gid_t, egid, gid_t, sgid)
+libc_hidden_def(setresgid)
+
+#elif defined(__NR_setresgid)
+
+# define __NR___syscall_setresgid __NR_setresgid
+static __inline__ _syscall3(int, __syscall_setresgid,
+ __kernel_gid_t, rgid, __kernel_gid_t, egid, __kernel_gid_t, sgid)
+
+int setresgid(gid_t rgid, gid_t egid, gid_t sgid)
+{
+ if (((rgid + 1) > (gid_t) ((__kernel_gid_t) - 1U))
+ || ((egid + 1) > (gid_t) ((__kernel_gid_t) - 1U))
+ || ((sgid + 1) > (gid_t) ((__kernel_gid_t) - 1U))) {
+ __set_errno(EINVAL);
+ return -1;
+ }
+ return (__syscall_setresgid(rgid, egid, sgid));
+}
+libc_hidden_def(setresgid)
+
+#endif
+
+#endif