char *f = memmem(c->upstream, c->upstream_len,
interface, strlen(interface) + 1);
bool cmatched = !strcmp(interface, c->name) || !strcmp(ifname, c->ifname);
char *f = memmem(c->upstream, c->upstream_len,
interface, strlen(interface) + 1);
bool cmatched = !strcmp(interface, c->name) || !strcmp(ifname, c->ifname);