---
xmalloc.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/xmalloc.c b/xmalloc.c
index 45ff57b1..b77f6910 100644
--- a/xmalloc.c
+++ b/xmalloc.c
@@ -91,6 +91,9 @@ xreallocarray(void *ptr, size_t nmemb, size_t size)
char *
xstrdup(const char *str)
{
+ if (!str)
+ return NULL;
+
char *p = strdup(str);
if (!p)
--
2.11.0
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