1#include <assert.h>
2#include <stdlib.h>
3#include <sys/poll.h>
4
5// At one point, poll()'s checking was not done accurately.  This test
6// exposes this -- previously Memcheck only found one error, now if finds
7// two.
8
9int main(void)
10{
11   // Under-allocate by one byte so we get an addressability error.
12   struct pollfd* ufds = malloc(2 * sizeof(struct pollfd) - 1);
13   assert(ufds);
14
15   ufds[0].fd = 0;
16   ufds[0].events = 0;
17   //ufds[1].fd = 0;    // leave undefined so we get another error.
18   ufds[1].events = 0;
19
20   // Previously, the bounds-error due to the under-allocation was detected,
21   // but not the undefined value error due to ufds[1].fd not being defined.
22   poll(ufds, 2, 200);
23
24   return 0;
25}
26