X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;f=crypto%2Fuid.c;h=b2b096446fb4e6580fae6f0b6b4fa0b45ddcdf48;hb=edfd50d8db3ae20c1cba1667f861a25cbe6c31f2;hp=12df8a4e87c0c4954c039cd29a5cba8541ff0f19;hpb=d2e9e320186f0917cc940f46bdf1a7e4120da9b0;p=oweals%2Fopenssl.git

diff --git a/crypto/uid.c b/crypto/uid.c
index 12df8a4e87..b2b096446f 100644
--- a/crypto/uid.c
+++ b/crypto/uid.c
@@ -1,5 +1,5 @@
 /*
- * Copyright 2001-2016 The OpenSSL Project Authors. All Rights Reserved.
+ * Copyright 2001-2019 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
@@ -10,7 +10,7 @@
 #include <openssl/crypto.h>
 #include <openssl/opensslconf.h>
 
-#if defined(__OpenBSD__) || (defined(__FreeBSD__) && __FreeBSD__ > 2)
+#if defined(__OpenBSD__) || (defined(__FreeBSD__) && __FreeBSD__ > 2) || defined(__DragonFly__)
 
 # include OPENSSL_UNISTD
 
@@ -19,7 +19,7 @@ int OPENSSL_issetugid(void)
     return issetugid();
 }
 
-#elif defined(OPENSSL_SYS_WIN32) || defined(OPENSSL_SYS_VXWORKS)
+#elif defined(OPENSSL_SYS_WIN32) || defined(OPENSSL_SYS_VXWORKS) || defined(OPENSSL_SYS_UEFI)
 
 int OPENSSL_issetugid(void)
 {
@@ -31,12 +31,19 @@ int OPENSSL_issetugid(void)
 # include OPENSSL_UNISTD
 # include <sys/types.h>
 
+# if defined(__GLIBC__) && defined(__GLIBC_PREREQ)
+#  if __GLIBC_PREREQ(2, 16)
+#   include <sys/auxv.h>
+#   define OSSL_IMPLEMENT_GETAUXVAL
+#  endif
+# endif
+
 int OPENSSL_issetugid(void)
 {
-    if (getuid() != geteuid())
-        return 1;
-    if (getgid() != getegid())
-        return 1;
-    return 0;
+# ifdef OSSL_IMPLEMENT_GETAUXVAL
+    return getauxval(AT_SECURE) != 0;
+# else
+    return getuid() != geteuid() || getgid() != getegid();
+# endif
 }
 #endif