CS318 - Pintos
Pintos source browser for JHU CS318 course
pt-bad-read.c
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1 /** Reads from a file into a bad address.
2  The process must be terminated with -1 exit code. */
3 
4 #include <syscall.h>
5 #include "tests/lib.h"
6 #include "tests/main.h"
7 
8 void
9 test_main (void)
10 {
11  int handle;
12 
13  CHECK ((handle = open ("sample.txt")) > 1, "open \"sample.txt\"");
14  read (handle, (char *) &handle - 4096, 1);
15  fail ("survived reading data into bad address");
16 }
lib.h
CHECK
#define CHECK(SUCCESS,...)
Takes an expression to test for SUCCESS and a message, which may include printf-style arguments.
Definition: lib.h:29
open
int open(const char *file)
Definition: syscall.c:103
fail
void fail(const char *format,...)
Definition: lib.c:40
test_main
void test_main(void)
Reads from a file into a bad address.
Definition: pt-bad-read.c:9
main.h
read
int read(int fd, void *buffer, unsigned size)
Definition: syscall.c:115
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