ladybird/Tests/Kernel/null-deref-close-during-select.cpp

42 lines
766 B
C++

/*
* Copyright (c) 2018-2020, the SerenityOS developers.
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <pthread.h>
#include <stdio.h>
#include <sys/select.h>
#include <unistd.h>
int pipefds[2];
int main(int, char**)
{
pipe(pipefds);
pthread_t tid;
pthread_create(
&tid, nullptr, [](void*) -> void* {
sleep(1);
printf("ST: close()\n");
close(pipefds[1]);
pthread_exit(nullptr);
},
nullptr);
fd_set rfds;
FD_ZERO(&rfds);
FD_SET(pipefds[1], &rfds);
printf("MT: select()\n");
int rc = select(pipefds[1] + 1, &rfds, nullptr, nullptr, nullptr);
if (rc < 0) {
perror("select");
return 1;
}
printf("ok\n");
return 0;
}