From: Martin Willi <martin@revosec.ch>
Date: Fri, 12 Jul 2013 17:58:02 +0000 (+0200)
Subject: leak-detective: remove hdr entry when reallocating zero bytes
X-Git-Tag: 5.1.0rc1~47
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=1e54e40f5d331b857382380441fce07468767dcd;p=thirdparty%2Fstrongswan.git

leak-detective: remove hdr entry when reallocating zero bytes
---

diff --git a/src/libstrongswan/utils/leak_detective.c b/src/libstrongswan/utils/leak_detective.c
index 674445bd26..ffbc620856 100644
--- a/src/libstrongswan/utils/leak_detective.c
+++ b/src/libstrongswan/utils/leak_detective.c
@@ -872,6 +872,12 @@ HOOK(void*, realloc, void *old, size_t bytes)
 	{
 		return malloc(bytes);
 	}
+	/* handle zero size as a free() */
+	if (bytes == 0)
+	{
+		free(old);
+		return NULL;
+	}
 
 	hdr = old - sizeof(memory_header_t);
 	tail = old + hdr->bytes;