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src
tests
vm
mmap-null.c
Go to the documentation of this file.
1
/** Verifies that memory mappings at address 0 are disallowed. */
2
3
#include <syscall.h>
4
#include "
tests/lib.h
"
5
#include "
tests/main.h
"
6
7
void
8
test_main
(
void
)
9
{
10
int
handle;
11
12
CHECK
((handle =
open
(
"sample.txt"
)) > 1,
"open \"sample.txt\""
);
13
CHECK
(
mmap
(handle,
NULL
) ==
MAP_FAILED
,
"try to mmap at address 0"
);
14
}
15
mmap
mapid_t mmap(int fd, void *addr)
Project 3 and optionally project 4.
Definition:
syscall.c:145
open
int open(const char *file)
Definition:
syscall.c:103
MAP_FAILED
#define MAP_FAILED
Definition:
syscall.h:13
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)
Verifies that memory mappings at address 0 are disallowed.
Definition:
mmap-null.c:8
NULL
#define NULL
Definition:
stddef.h:4
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