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-rw-r--r--tests/libtest/lib643.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/tests/libtest/lib643.c b/tests/libtest/lib643.c
index 7432dfce8..047a9b384 100644
--- a/tests/libtest/lib643.c
+++ b/tests/libtest/lib643.c
@@ -5,7 +5,7 @@
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
- * Copyright (C) 1998 - 2017, Daniel Stenberg, <daniel@haxx.se>, et al.
+ * Copyright (C) 1998 - 2020, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
@@ -41,10 +41,15 @@ struct WriteThis {
static size_t read_callback(char *ptr, size_t size, size_t nmemb, void *userp)
{
#ifdef LIB644
+ static int count = 0;
(void)ptr;
(void)size;
(void)nmemb;
(void)userp;
+ if(++count > 1) {
+ printf("Wrongly called >1 times\n");
+ exit(1); /* trigger major failure */
+ }
return CURL_READFUNC_ABORT;
#else