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add ungetc with setvbuf test
author
Szabolcs Nagy
<nsz@port70.net>
Sun, 15 Jul 2018 21:20:21 +0000
(21:20 +0000)
committer
Szabolcs Nagy
<nsz@port70.net>
Sun, 15 Jul 2018 21:20:21 +0000
(21:20 +0000)
src/regression/setvbuf-unget.c
[new file with mode: 0644]
patch
|
blob
diff --git a/src/regression/setvbuf-unget.c
b/src/regression/setvbuf-unget.c
new file mode 100644
(file)
index 0000000..
8667675
--- /dev/null
+++ b/
src/regression/setvbuf-unget.c
@@ -0,0
+1,15
@@
+// commit: 9cad27a3dc1a4eb349b6591e4dc8cc89dce32277
+// ungetc after setvbuf should not clobber memory below buffer
+#include <stdio.h>
+#include <string.h>
+#include "test.h"
+
+int main(void)
+{
+ char buf[1024] = "hello world";
+ setvbuf(stdin, buf+12, _IOFBF, sizeof buf - 12);
+ while (ungetc('x', stdin)!=EOF);
+ if (strcmp(buf, "hello world"))
+ t_error("ungetc clobbered outside buffer: [%.12s]\n", buf);
+ return t_status;
+}