From e7bc50ca8ffcaa6ed68ebd2315f78b0f5a7d10ad Mon Sep 17 00:00:00 2001 From: klaar36 Date: Fri, 20 Mar 2015 17:30:24 +0100 Subject: Initial Pintos --- src/tests/klaar/read-bad-buf.c | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) create mode 100644 src/tests/klaar/read-bad-buf.c (limited to 'src/tests/klaar/read-bad-buf.c') diff --git a/src/tests/klaar/read-bad-buf.c b/src/tests/klaar/read-bad-buf.c new file mode 100644 index 0000000..1e41562 --- /dev/null +++ b/src/tests/klaar/read-bad-buf.c @@ -0,0 +1,24 @@ +/* Passes an semingly valid pointer to the read system call. + The pointer will however span invalid pages. + The process must be terminated with -1 exit code. + (klaar@ida) +*/ + +#include +#include "tests/lib.h" +#include "tests/main.h" + +char global; /* allocated with process image */ + +void +test_main (void) +{ + int handle; + char local; /* allocated on process stack */ + + CHECK ((handle = open ("sample.txt")) > 1, "open \"sample.txt\""); + + /* buffer will start and end at valid addresses ... */ + read (handle, (char *)&global, &local - &global + 1); + fail ("should not have survived read()"); +} -- cgit v1.2.1