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This compliant solution performs the recv() call with the parameter o_nonblock, which causes the call to fail if no messages are available on the socket.:
| Code Block | ||||
|---|---|---|---|---|
| ||||
void thread_foo(void *ptr) {
uint32_t num;
int result;
/* sock is a connected TCP socket */
if ((result = recv(sock, (void *)&num, sizeof(uint32_t), O_NONBLOCK)) < 0) {
/* Handle Error */
}
if ((result = pthread_mutex_lock(&mutex)) != 0) {
/* Handle Error */
}
/* ... */
if ((result = pthread_mutex_unlock(&mutex)) != 0) {
/* Handle Error */
}
}
|
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Rule | Severity | Likelihood | Remediation Cost | Priority | Level |
|---|---|---|---|---|---|
POS52-C | low | probable | high | P2 | L3 |
Related Guidelines
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Bibliography
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