#include "mesg.h" #define NBUFF 4 /* number of buffers in shared memory */ /* (for multiple buffer version) */ #define SHMKEY ((key_t) 7890) /* base value for shmem key */ #define SEMKEY1 ((key_t) 7891) /* client semaphore key */ #define SEMKEY2 ((key_t) 7892) /* server semaphore key */ #define PERMS 0666