pintos-doxygen/html/rox-simple_8c_source.html

/** Ensure that the executable of a running process cannot be

   modified. */


#include <syscall.h>

#include "tests/lib.h"

#include "tests/main.h"


void

test_main (void)

{

  int handle;

  char buffer[16];


  CHECK ((handle = open ("rox-simple")) > 1, "open \"rox-simple\"");

  CHECK (read (handle, buffer, sizeof buffer) == (int) sizeof buffer,

         "read \"rox-simple\"");

  CHECK (write (handle, buffer, sizeof buffer) == 0,

         "try to write \"rox-simple\"");

}

buffer
static struct intq buffer
Stores keys from the keyboard and serial port.
Definition: input.c:7

open
int open(const char *file)
Definition: syscall.c:103

write
int write(int fd, const void *buffer, unsigned size)
Definition: syscall.c:121

read
int read(int fd, void *buffer, unsigned size)
Definition: syscall.c:115

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

main.h

test_main
void test_main(void)
Ensure that the executable of a running process cannot be modified.
Definition: rox-simple.c:9