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 9 int 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
