PKUOS - Pintos
Pintos source browser for PKU Operating System course
pt-write-code-2.c
Go to the documentation of this file.
1/** Try to write to the code segment using a system call.
2 The process must be terminated with -1 exit code. */
3
4#include "tests/lib.h"
5#include "tests/main.h"
6
7void
9{
10 int handle;
11
12 CHECK ((handle = open ("sample.txt")) > 1, "open \"sample.txt\"");
13 read (handle, (void *) test_main, 1);
14 fail ("survived reading data into code segment");
15}
int open(const char *file)
Definition: syscall.c:103
int read(int fd, void *buffer, unsigned size)
Definition: syscall.c:115
void fail(const char *format,...)
Definition: lib.c:40
#define CHECK(SUCCESS,...)
Takes an expression to test for SUCCESS and a message, which may include printf-style arguments.
Definition: lib.h:29
void test_main(void)
Try to write to the code segment using a system call.