Did bind succeed?

Challenge

Interpret the return code of bind(), which follows the usual POSIX 0/-1 convention.

Task

Implement int bind_succeeded(int rc).

Input

• rc: the value bind() returned.

Output

Return 1 if rc == 0 (success), else 0.

Example

bind_succeeded(0)   ->  1
bind_succeeded(-1)  ->  0

Input format

rc: the return value of bind().

Output format

1 if rc == 0, else 0.

Constraints

bind() returns 0 on success, -1 on error.

Starter code

int bind_succeeded(int rc) {
    /* TODO */
    return 0;
}

Common mistakes

Forgetting to set SO_REUSEADDR on listening socket; omitting error checks on bind() or listen(); blocking indefinitely on single connection.

Edge cases to handle

Port already in use (EADDRINUSE); client disconnecting before accept(); interrupted accept calls (EINTR); multiple back-to-back incoming connections.