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-rw-r--r--lib/getinfo.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/lib/getinfo.c b/lib/getinfo.c
index 8e44b53ff..5cf3bcacd 100644
--- a/lib/getinfo.c
+++ b/lib/getinfo.c
@@ -77,6 +77,9 @@ CURLcode Curl_getinfo(struct SessionHandle *data, CURLINFO info, ...)
struct curl_slist **param_slistp=NULL;
char buf;
+ if(!data)
+ return CURLE_BAD_FUNCTION_ARGUMENT;
+
va_start(arg, info);
switch(info&CURLINFO_TYPEMASK) {