pollution: time_low __uint32_t time_low; pollution: time_mid __uint16_t time_mid; pollution: time_hi_and_version __uint16_t time_hi_and_version; pollution: clock_seq_hi_and_reserved __uint8_t clock_seq_hi_and_reserved; pollution: clock_seq_low __uint8_t clock_seq_low; pollution: node __uint8_t node[6]; pollution: uuid struct uuid { __uint32_t time_low; __uint16_t time_mid; __uint16_t time_hi_and_version; __uint8_t clock_seq_hi_and_reserved; __uint8_t clock_seq_low; __uint8_t node[6]; }; pollution: uuid typedef struct uuid uuid_t; pollution: uuid pollution: uuidgen int uuidgen(struct uuid *, int);