[Xen-devel] [PATCH v3 03/10] libxl: make libxl__strdup handle NULL

[Wei Liu <wei.liu2@xxxxxxxxxx>]

Signed-off-by: Wei Liu <wei.liu2@xxxxxxxxxx>
---
 tools/libxl/libxl_internal.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/tools/libxl/libxl_internal.c b/tools/libxl/libxl_internal.c
index 24a0901..48d58f2 100644
--- a/tools/libxl/libxl_internal.c
+++ b/tools/libxl/libxl_internal.c
@@ -161,7 +161,11 @@ char *libxl__sprintf(libxl__gc *gc, const char *fmt, ...)
 
 char *libxl__strdup(libxl__gc *gc, const char *c)
 {
-    char *s = strdup(c);
+    char *s;
+
+    if (!c) return NULL;
+
+    s = strdup(c);
 
     if (!s) libxl__alloc_failed(CTX, __func__, strlen(c), 1);
 
-- 
1.9.1


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