1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
|
#include <assert.h>
#include <stdlib.h>
#include <poll.h>
// At one point, poll()'s checking was not done accurately. This test
// exposes this -- previously Memcheck only found one error, now if finds
// two.
int main(void)
{
// Under-allocate by one byte so we get an addressability error.
struct pollfd* ufds = malloc(2 * sizeof(struct pollfd) - 1);
assert(ufds);
ufds[0].fd = 0;
ufds[0].events = 0;
//ufds[1].fd = 0; // leave undefined so we get another error.
ufds[1].events = 0;
// Previously, the bounds-error due to the under-allocation was detected,
// but not the undefined value error due to ufds[1].fd not being defined.
poll(ufds, 2, 200);
return 0;
}
|
