networking · beginner · ~15 min

Is the error retriable?

Distinguish transient errors from fatal ones.

Challenge

Implement int is_retriable(int err) returning 1 for EAGAIN or EINTR (transient — retry the call), else 0.

Starter code

#include <errno.h>

int is_retriable(int err) {
    /* TODO */
    return 0;
}

Solve this exercise in the browser editor — compile and run against the test harness, no setup required.