From: Carl Worth <cworth@cworth.org>
Date: Thu, 30 May 2013 19:55:26 +0000 (-0700)
Subject: dlwrap: Fix dlwrap_real_dlopen to only perform dlsym-lookup once
X-Git-Url: https://git.cworth.org/git?p=fips;a=commitdiff_plain;h=ad04f4e5a300b08cd7356d15725d84d34f152a07

dlwrap: Fix dlwrap_real_dlopen to only perform dlsym-lookup once

Making the real_dlopen variable static means that we perform the dlysm
lookup only once and then re-use the result for later calls. This is
what was always intended for this code.
---

diff --git a/dlwrap.c b/dlwrap.c
index 0c57f75..aac06f6 100644
--- a/dlwrap.c
+++ b/dlwrap.c
@@ -62,7 +62,7 @@ dlopen (const char *filename, int flag)
 void *
 dlwrap_real_dlopen (const char *filename, int flag)
 {
-	fips_dlopen_t real_dlopen = NULL;
+	static fips_dlopen_t real_dlopen = NULL;
 
 	if (! real_dlopen) {
 		real_dlopen = (fips_dlopen_t) dlwrap_real_dlsym (RTLD_NEXT, "dlopen");