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Problem: zmq_poller_[add/modify] accept invalid events arguments silently

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Solution: check and return an error on invalid arguments. Fixes #3088
This commit is contained in:
Simon Giesecke 2018-05-14 12:45:47 +02:00
parent 6b9b369469
commit e8877f78a9
2 changed files with 67 additions and 4 deletions
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21
src/zmq.cpp
View File

@ -1197,6 +1197,15 @@ static int check_poller (void *const poller_)
return 0;
}
static int check_events (const short events_)
{
if (events_ & ~(ZMQ_POLLIN | ZMQ_POLLOUT | ZMQ_POLLERR | ZMQ_POLLPRI)) {
errno = EINVAL;
return -1;
}
return 0;
}
static int check_poller_registration_args (void *const poller_, void *const s_)
{
if (-1 == check_poller (poller_))
@ -1231,7 +1240,8 @@ static int check_poller_fd_registration_args (void *const poller_,
int zmq_poller_add (void *poller_, void *s_, void *user_data_, short events_)
{
if (-1 == check_poller_registration_args (poller_, s_))
if (-1 == check_poller_registration_args (poller_, s_)
|| -1 == check_events (events_))
return -1;
zmq::socket_base_t *socket = (zmq::socket_base_t *) s_;
@ -1249,7 +1259,8 @@ int zmq_poller_add_fd (void *poller_,
int zmq_poller_add_fd (void *poller_, int fd_, void *user_data_, short events_)
#endif
{
if (-1 == check_poller_fd_registration_args (poller_, fd_))
if (-1 == check_poller_fd_registration_args (poller_, fd_)
|| -1 == check_events (events_))
return -1;
return ((zmq::socket_poller_t *) poller_)
@ -1259,7 +1270,8 @@ int zmq_poller_add_fd (void *poller_, int fd_, void *user_data_, short events_)
int zmq_poller_modify (void *poller_, void *s_, short events_)
{
if (-1 == check_poller_registration_args (poller_, s_))
if (-1 == check_poller_registration_args (poller_, s_)
|| -1 == check_events (events_))
return -1;
zmq::socket_base_t *socket = (zmq::socket_base_t *) s_;
@ -1274,7 +1286,8 @@ int zmq_poller_modify_fd (void *poller_, SOCKET fd_, short events_)
int zmq_poller_modify_fd (void *poller_, int fd_, short events_)
#endif
{
if (-1 == check_poller_fd_registration_args (poller_, fd_))
if (-1 == check_poller_fd_registration_args (poller_, fd_)
|| -1 == check_events (events_))
return -1;
return ((zmq::socket_poller_t *) poller_)->modify_fd (fd_, events_);

50
tests/test_poller.cpp
View File

@ -31,6 +31,7 @@
#include "testutil_unity.hpp"
#include <unity.h>
#include <limits.h>
void setUp ()
{
@ -393,6 +394,42 @@ void call_poller_modify_fd_unregistered_fails (void *poller,
TEST_ASSERT_SUCCESS_ERRNO (close (plain_socket));
}
void call_poller_add_invalid_events_fails (void *poller, void *zeromq_socket)
{
TEST_ASSERT_FAILURE_ERRNO (
EINVAL, zmq_poller_add (poller, zeromq_socket, NULL, SHRT_MAX));
}
void call_poller_modify_invalid_events_fails (void *poller, void *zeromq_socket)
{
TEST_ASSERT_SUCCESS_ERRNO (zmq_poller_add (poller, zeromq_socket, NULL, 0));
TEST_ASSERT_FAILURE_ERRNO (
EINVAL, zmq_poller_modify (poller, zeromq_socket, SHRT_MAX));
}
void call_poller_add_fd_invalid_events_fails (void *poller,
void * /*zeromq_socket*/)
{
fd_t plain_socket = socket (AF_INET, SOCK_STREAM, IPPROTO_TCP);
TEST_ASSERT_FAILURE_ERRNO (
EINVAL, zmq_poller_add_fd (poller, plain_socket, NULL, SHRT_MAX));
TEST_ASSERT_SUCCESS_ERRNO (close (plain_socket));
}
void call_poller_modify_fd_invalid_events_fails (void *poller,
void * /*zeromq_socket*/)
{
fd_t plain_socket = socket (AF_INET, SOCK_STREAM, IPPROTO_TCP);
TEST_ASSERT_SUCCESS_ERRNO (
zmq_poller_add_fd (poller, plain_socket, NULL, 0));
TEST_ASSERT_FAILURE_ERRNO (
EINVAL, zmq_poller_modify_fd (poller, plain_socket, SHRT_MAX));
TEST_ASSERT_SUCCESS_ERRNO (close (plain_socket));
}
TEST_CASE_FUNC_PARAM (call_poller_add_twice_fails, test_with_empty_poller)
TEST_CASE_FUNC_PARAM (call_poller_remove_unregistered_fails,
test_with_empty_poller)
@ -406,6 +443,15 @@ TEST_CASE_FUNC_PARAM (call_poller_remove_fd_unregistered_fails,
TEST_CASE_FUNC_PARAM (call_poller_modify_fd_unregistered_fails,
test_with_empty_poller)
TEST_CASE_FUNC_PARAM (call_poller_add_invalid_events_fails,
test_with_empty_poller)
TEST_CASE_FUNC_PARAM (call_poller_modify_invalid_events_fails,
test_with_empty_poller)
TEST_CASE_FUNC_PARAM (call_poller_add_fd_invalid_events_fails,
test_with_empty_poller)
TEST_CASE_FUNC_PARAM (call_poller_modify_fd_invalid_events_fails,
test_with_empty_poller)
void call_poller_wait_empty_with_timeout_fails (void *poller, void * /*socket*/)
{
zmq_poller_event_t event;
@ -618,6 +664,10 @@ int main (void)
RUN_TEST (test_call_poller_add_fd_twice_fails);
RUN_TEST (test_call_poller_remove_fd_unregistered_fails);
RUN_TEST (test_call_poller_modify_fd_unregistered_fails);
RUN_TEST (test_call_poller_add_invalid_events_fails);
RUN_TEST (test_call_poller_modify_invalid_events_fails);
RUN_TEST (test_call_poller_add_fd_invalid_events_fails);
RUN_TEST (test_call_poller_modify_fd_invalid_events_fails);
RUN_TEST (test_call_poller_wait_empty_with_timeout_fails);
RUN_TEST (test_call_poller_wait_empty_without_timeout_fails);