ensure that partial reads from recv don't trip up rendering #469
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| while (1) { | ||
| rx.fd = fd; | ||
| rx.events = POLLIN; | ||
| s = poll(&rx, 1, timeout * 1000); | ||
|
|
||
| if (s > 0) { | ||
| bzero(&resp, sizeof(struct protocol)); | ||
| ret = recv(fd, &resp, sizeof(struct protocol_v2), 0); | ||
| ret = recv(fd, &resp + already_read, want - already_read, 0); |
Check notice
Code scanning / Flawfinder
Function accepts input from outside program (CWE-20). Note
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It is not guaranteed that recv will always return the number of bytes you have asked for; it can return fewer bytes which should not be treated as an error. This is a rare issue but I have actually encountered it on a (virtualised) system. Review requested though - unsure if I have the logic watertight.