/*
- * Copyright 2001-2016 The OpenSSL Project Authors. All Rights Reserved.
+ * Copyright 2001-2018 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the OpenSSL license (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
# include OPENSSL_UNISTD
# include <sys/types.h>
+# if defined(__GLIBC__) && defined(__GLIBC_PREREQ)
+# if __GLIBC_PREREQ(2, 16)
+# include <sys/auxv.h>
+# endif
+# endif
+
int OPENSSL_issetugid(void)
{
- if (getuid() != geteuid())
- return 1;
- if (getgid() != getegid())
- return 1;
- return 0;
+# ifdef AT_SECURE
+ return getauxval(AT_SECURE) != 0;
+# else
+ return getuid() != geteuid() || getgid() != getegid();
+# endif
}
#endif