keycmp
sizeof(keywords[0]), keycmp);
int keycmp(const void *, const void *);
for (i = 0; i < nitems(keycmp); ++i)
if (keycmp[i].service == service)
match = keycmp[i].func;
} keycmp[] = {
for (i = 0; i < nitems(keycmp); ++i)
if (keycmp[i].service == service)
match = keycmp[i].func;
} keycmp[] = {