From: Martin Willi <martin@revosec.ch>
Date: Thu, 17 Oct 2013 14:23:43 +0000 (+0200)
Subject: windows: Provide a strdup variant safe when passing zero-length strings
X-Git-Tag: 5.2.0dr6~24^2~106
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a506b922f32bc925a9aaeda88c39eba16141211e;p=thirdparty%2Fstrongswan.git

windows: Provide a strdup variant safe when passing zero-length strings
---

diff --git a/src/libstrongswan/utils/windows.h b/src/libstrongswan/utils/windows.h
index 8c009cabbf..90c92fd60a 100644
--- a/src/libstrongswan/utils/windows.h
+++ b/src/libstrongswan/utils/windows.h
@@ -67,6 +67,21 @@ static inline void srandom(unsigned int seed)
 	srand(seed);
 }
 
+/**
+ * strdup(3), the Windows variant can't free(strdup("")) and others
+ */
+#define strdup strdup_windows
+static inline char* strdup_windows(const char *src)
+{
+	size_t len;
+	char *dst;
+
+	len = strlen(src) + 1;
+	dst = malloc(len);
+	memcpy(dst, src, len);
+	return dst;
+}
+
 /**
  * Provided via ws2_32
  */