HelenOS sources

dnsr_exchange_begin   71 uspace/lib/inet/src/dnsr.c 	async_exch_t *exch = dnsr_exchange_begin();
dnsr_exchange_begin  154 uspace/lib/inet/src/dnsr.c 	async_exch_t *exch = dnsr_exchange_begin();
dnsr_exchange_begin  175 uspace/lib/inet/src/dnsr.c 	async_exch_t *exch = dnsr_exchange_begin();