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#include <ccan/ptr_valid/ptr_valid.h>
/* Include the C files directly. */
#include <ccan/ptr_valid/ptr_valid.c>
#include <ccan/tap/tap.h>
#include <sys/mman.h>
static bool check_batch(char *p, unsigned int num, bool expect)
{
struct ptr_valid_batch batch;
unsigned int i;
if (!ptr_valid_batch_start(&batch))
return false;
for (i = 0; i < num; i++) {
if (ptr_valid_batch(&batch, p + i, 1, 1, false) != expect)
return false;
if (ptr_valid_batch(&batch, p + i, 1, 1, true) != expect)
return false;
}
ptr_valid_batch_end(&batch);
return true;
}
int main(void)
{
char *page;
/* This is how many tests you plan to run */
plan_tests(30);
page = mmap(NULL, getpagesize(), PROT_READ|PROT_WRITE,
MAP_ANONYMOUS|MAP_PRIVATE, -1, 0);
ok1(ptr_valid_read(page));
ok1(ptr_valid_write(page));
ok1(ptr_valid(page, 1, getpagesize(), false));
ok1(ptr_valid(page, 1, getpagesize(), true));
/* Test alignment constraints. */
ok1(ptr_valid(page, getpagesize(), getpagesize(), false));
ok1(ptr_valid(page, getpagesize(), getpagesize(), true));
ok1(!ptr_valid(page+1, getpagesize(), 1, false));
ok1(!ptr_valid(page+1, getpagesize(), 1, true));
/* Test batch. */
ok1(check_batch(page, getpagesize(), true));
/* Unmap, all should fail. */
munmap(page, getpagesize());
ok1(!ptr_valid_read(page));
ok1(!ptr_valid_write(page));
ok1(!ptr_valid(page, 1, getpagesize(), false));
ok1(!ptr_valid(page, 1, getpagesize(), true));
/* Test alignment constraints. */
ok1(!ptr_valid(page, getpagesize(), getpagesize(), false));
ok1(!ptr_valid(page, getpagesize(), getpagesize(), true));
ok1(!ptr_valid(page+1, getpagesize(), 1, false));
ok1(!ptr_valid(page, getpagesize(), 1, true));
/* Test batch (slow, since each fails, so reduce count). */
ok1(check_batch(page, 4, false));
/* Check read-only */
page = mmap(NULL, getpagesize(), PROT_READ,
MAP_ANONYMOUS|MAP_PRIVATE, -1, 0);
ok1(ptr_valid_read(page));
ok1(!ptr_valid_write(page));
ok1(ptr_valid(page, 1, getpagesize(), false));
ok1(!ptr_valid(page, 1, getpagesize(), true));
/* Test alignment constraints. */
ok1(ptr_valid(page, getpagesize(), getpagesize(), false));
ok1(!ptr_valid(page, getpagesize(), getpagesize(), true));
ok1(!ptr_valid(page+1, getpagesize(), 1, false));
ok1(!ptr_valid(page+1, getpagesize(), 1, true));
munmap(page, getpagesize());
/* Check for overrun. */
page = mmap(NULL, getpagesize()*2, PROT_READ|PROT_WRITE,
MAP_ANONYMOUS|MAP_PRIVATE, -1, 0);
munmap(page + getpagesize(), getpagesize());
ok1(ptr_valid(page, 1, getpagesize(), false));
ok1(ptr_valid(page, 1, getpagesize(), true));
ok1(!ptr_valid(page, 1, getpagesize()+1, false));
ok1(!ptr_valid(page, 1, getpagesize()+1, true));
/* This exits depending on whether all tests passed */
return exit_status();
}
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