/* \$Header: util.h,v 7.0 86/10/08 15:14:37 lwall Exp \$ */ /* \$Log: util.h,v \$ * Revision 7.0 86/10/08 15:14:37 lwall * Split into separate files. Added amoebas and pirates. * */ #if RANDBITS < 15 || defined(lint) #define rand_mod(m) getpid() #define RANDRAND 0.0 #define HALFRAND 0 #define myrand() getpid() #else #if RANDBITS == 15 /* 15 bits of rand()? */ #define RANDRAND 268435456.0 /* that's 2**28 */ #define HALFRAND 0x4000 /* that's 2**14 */ int rand(); #define myrand() (rand()&32767) #define rand_mod(m) ((int)((double)myrand() / 32768.0 * ((double)(m)))) /* pick number in 0..m-1 */ #else #if RANDBITS < 31 /* 16 bits of rand()? */ #define RANDRAND 1073741824.0 /* that's 2**30 */ #define HALFRAND 0x8000 /* that's 2**15 */ unsigned rand(); #define myrand() (rand()&65535) #define rand_mod(m) ((int)((double)myrand() / 65536.0 * ((double)(m)))) /* pick number in 0..m-1 */ #else /* assume 31 bits */ #define RANDRAND 1152921504606846976.0 /* that's 2**60 */ #define HALFRAND 0x40000000 /* that's 2**30 */ long rand(); #define myrand() rand() #define rand_mod(m) ((myrand() / 37) % (m)) /* pick number in 0..m-1 */ /* * The reason for the /37 above is that our random number generator yields * successive evens and odds, for some reason. This makes strange star maps. */ #endif #endif #endif /* we get fractions of seconds from calling ftime on timebuf */ #ifdef FTIMER EXT struct timeb timebuf; #define roundsleep(x) (ftime(&timebuf),sleep(timebuf.millitm > 500?x+1:x)) #else #define roundsleep(x) sleep(x) #endif void movc3(); void no_can_do(); int exdis(); EXT bool waiting INIT(FALSE); /* are we waiting for subprocess (in doshell)? */ #ifdef NOTDEF EXT int len_last_line_got INIT(0); /* strlen of some_buf after */ /* some_buf = get_a_line(bufptr,buffersize,fp) */ #endif #ifdef NOTDEF /* is the string for makedir a directory name or a filename? */ #define MD_DIR 0 #define MD_FILE 1 #endif void util_init(); char *safemalloc(); char *safecpy(); char *cpytill(); char *instr(); #ifdef SETUIDGID int eaccess(); #endif char *getwd(); void cat(); void prexit(); char *savestr(); char *getval();