Function execplinehandler

src/pline.c:640–686

static boolean use_pline_handler = TRUE;

staticfn void
execplinehandler(const char *line)
{
#if defined(UNIX) && (defined(POSIX_TYPES) || defined(__GNUC__))
    int f;
#endif
    const char *args[3];

    if (!use_pline_handler || !sysopt.msghandler)
        return;

#if defined(UNIX) && (defined(POSIX_TYPES) || defined(__GNUC__))
    f = fork();
    if (f == 0) { /* child */
        args[0] = sysopt.msghandler;
        args[1] = line;
        args[2] = NULL;
        (void) setgid(getgid());
        (void) setuid(getuid());
        (void) execv(args[0], (char *const *) args);
        perror((char *) 0);
        (void) fprintf(stderr, "Exec to message handler %s failed.\n", sysopt.msghandler);
        nh_terminate(EXIT_FAILURE);
    } else if (f > 0) {
        int status;

        waitpid(f, &status, 0);
    } else if (f == -1) {
        perror((char *) 0);
        use_pline_handler = FALSE;
        pline("%s", "Fork to message handler failed.");
    }
#elif defined(WIN32)
    {
        intptr_t ret;
        args[0] = sysopt.msghandler;
        args[1] = line;
        args[2] = NULL;
        ret = _spawnv(_P_NOWAIT, sysopt.msghandler, args);
        nhUse(ret);  /* -Wunused-but-set-variable */
    }
#else
    use_pline_handler = FALSE;
    nhUse(args);
    nhUse(line);
#endif
}

/* nhassert_failed is called when an nhassert's condition is false */
void