Function iperf_parse_hostname

src/iperf_api.c:1063–1099

* iperf_parse_hostname tries to split apart a string into hostname % * interface parts, which are returned in **p and **p1, if they * exist. If the %interface part is detected, and it's not an IPv6 * link local address, then returns 1, else returns 0. * * Modifies the string pointed to by spec in-place due to the use of * strtok(3). The caller should strdup(3) or otherwise copy the string *

 * if an unmodified copy is needed.
 */
int
iperf_parse_hostname(struct iperf_test *test, char *spec, char **p, char **p1) {
    struct in6_addr ipv6_addr;

    // Format is <addr>[%<device>]
    if ((*p = strtok(spec, "%")) != NULL &&
        (*p1 = strtok(NULL, "%")) != NULL) {

        /*
         * If an IPv6 literal for a link-local address, then
         * tell the caller to leave the "%" in the hostname.
         */
        if (inet_pton(AF_INET6, *p, &ipv6_addr) == 1 &&
            IN6_IS_ADDR_LINKLOCAL(&ipv6_addr)) {
            if (test->debug) {
                iperf_printf(test, "IPv6 link-local address literal detected\n");
            }
            return 0;
        }
        /*
         * Other kind of address or FQDN. The interface name after
         * "%" is a shorthand for --bind-dev.
         */
        else {
            if (test->debug) {
                iperf_printf(test, "p %s p1 %s\n", *p, *p1);
            }
            return 1;
        }
    }
    else {
        if (test->debug) {
            iperf_printf(test, "noparse\n");
        }
        return 0;
    }
}

int
iperf_parse_arguments(struct iperf_test *test, int argc, char **argv)