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-rw-r--r--lib/url.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/lib/url.c b/lib/url.c
index 073c4331b..8e470b0e1 100644
--- a/lib/url.c
+++ b/lib/url.c
@@ -144,6 +144,15 @@ static unsigned int get_protocol_family(unsigned int protocol);
#define READBUFFER_MAX CURL_MAX_READ_SIZE
#define READBUFFER_MIN 1024
+/* Some parts of the code (e.g. chunked encoding) assume this buffer has at
+ * more than just a few bytes to play with. Don't let it become too small or
+ * bad things will happen.
+ */
+#if READBUFFER_SIZE < READBUFFER_MIN
+# error READBUFFER_SIZE is too small
+#endif
+
+
/*
* Protocol table.
*/