1 /* 2 * Collect all machine dependent idiosyncrasies in one place. 3 */ 4 5 #ifndef __ntp_machine 6 #define __ntp_machine 7 8 #ifdef HAVE_CONFIG_H 9 # include <config.h> 10 #endif 11 12 #ifdef TIME_WITH_SYS_TIME 13 # include <sys/time.h> 14 # include <time.h> 15 #else 16 # ifdef HAVE_SYS_TIME_H 17 # include <sys/time.h> 18 # else 19 # include <time.h> 20 # endif 21 #endif 22 23 #include "ntp_proto.h" 24 25 /* 26 27 HEY! CHECK THIS OUT! 28 29 The first half of this file is obsolete, and is only there to help 30 reconcile "what went before" with "current behavior". 31 32 The per-system SYS_* #defins ARE NO LONGER USED, with the temporary 33 exception of SYS_WINNT. 34 35 If you find a hunk of code that is bracketed by a SYS_* macro and you 36 *know* that it is still needed, please let us know. In many cases the 37 code fragment is now handled somewhere else by autoconf choices. 38 39 */ 40 41 /* 42 43 INFO ON NEW KERNEL PLL SYS CALLS 44 45 NTP_SYSCALLS_STD - use the "normal" ones 46 NTP_SYSCALL_GET - SYS_ntp_gettime id 47 NTP_SYSCALL_ADJ - SYS_ntp_adjtime id 48 NTP_SYSCALLS_LIBC - ntp_adjtime() and ntp_gettime() are in libc. 49 50 HOW TO GET IP INTERFACE INFORMATION 51 52 Some UNIX V.4 machines implement a sockets library on top of 53 streams. For these systems, you must use send the SIOCGIFCONF down 54 the stream in an I_STR ioctl. This ususally also implies 55 USE_STREAMS_DEVICE FOR IF_CONFIG. Dell UNIX is a notable exception. 56 57 STREAMS_TLI - use ioctl(I_STR) to implement ioctl(SIOCGIFCONF) 58 59 WHAT DOES IOCTL(SIOCGIFCONF) RETURN IN THE BUFFER 60 61 UNIX V.4 machines implement a sockets library on top of streams. 62 When requesting the IP interface configuration with an ioctl(2) calll, 63 an array of ifreq structures are placed in the provided buffer. Some 64 implementations also place the length of the buffer information in 65 the first integer position of the buffer. 66 67 SIZE_RETURNED_IN_BUFFER - size integer is in the buffer 68 69 WILL IOCTL(SIOCGIFCONF) WORK ON A SOCKET 70 71 Some UNIX V.4 machines do not appear to support ioctl() requests for the 72 IP interface configuration on a socket. They appear to require the use 73 of the streams device instead. 74 75 USE_STREAMS_DEVICE_FOR_IF_CONFIG - use the /dev/ip device for configuration 76 77 MISC 78 79 HAVE_PROTOTYPES - Prototype functions 80 DOSYNCTODR - Resync TODR clock every hour. 81 RETSIGTYPE - Define signal function type. 82 NO_SIGNED_CHAR_DECL - No "signed char" see include/ntp.h 83 LOCK_PROCESS - Have plock. 84 UDP_WILDCARD_DELIVERY 85 - these systems deliver broadcast packets to the wildcard 86 port instead to a port bound to the interface bound 87 to the correct broadcast address - are these 88 implementations broken or did the spec change ? 89 */ 90 91 /* 92 * Set up for prototyping (duplicated from ntp_types.h) 93 */ 94 #ifndef P 95 #if defined(__STDC__) || defined(HAVE_PROTOTYPES) 96 #define P(x) x 97 #else /* not __STDC__ and not HAVE_PROTOTYPES */ 98 #define P(x) () 99 #endif /* not __STDC__ and not HAVE_PROTOTYPES */ 100 #endif /* P */ 101 102 #if 0 103 104 /* 105 * IRIX 4.X and IRIX 5.x 106 */ 107 #if defined(SYS_IRIX4)||defined(SYS_IRIX5) 108 # define ADJTIME_IS_ACCURATE 109 # define LOCK_PROCESS 110 #endif 111 112 /* 113 * Ultrix 114 * Note: posix version has NTP_POSIX_SOURCE and HAVE_SIGNALED_IO 115 */ 116 #if defined(SYS_ULTRIX) 117 # define S_CHAR_DEFINED 118 # define NTP_SYSCALLS_STD 119 # define HAVE_MODEM_CONTROL 120 #endif 121 122 /* 123 * AUX 124 */ 125 #if defined(SYS_AUX2) || defined(SYS_AUX3) 126 # define NO_SIGNED_CHAR_DECL 127 # define LOCK_PROCESS 128 # define NTP_POSIX_SOURCE 129 /* 130 * This requires that _POSIX_SOURCE be forced on the 131 * compiler command flag. We can't do it here since this 132 * file is included _after_ the system header files and we 133 * need to let _them_ know we're POSIX. We do this in 134 * compilers/aux3.gcc... 135 */ 136 # define LOG_NTP LOG_LOCAL1 137 #endif 138 139 /* 140 * HPUX 141 */ 142 #if defined(SYS_HPUX) 143 # define getdtablesize() sysconf(_SC_OPEN_MAX) 144 # define setlinebuf(f) setvbuf(f, NULL, _IOLBF, 0) 145 # define NO_SIGNED_CHAR_DECL 146 # define LOCK_PROCESS 147 #endif 148 149 /* 150 * BSD/OS 2.0 and above 151 */ 152 #if defined(SYS_BSDI) 153 # define USE_FSETOWNCTTY /* this funny system demands a CTTY for FSETOWN */ 154 #endif 155 156 /* 157 * FreeBSD 2.0 and above 158 */ 159 #ifdef SYS_FREEBSD 160 # define KERNEL_PLL 161 #endif 162 163 /* 164 * Linux 165 */ 166 #if defined(SYS_LINUX) 167 # define ntp_adjtime __adjtimex 168 #endif 169 170 /* 171 * PTX 172 */ 173 #if defined(SYS_PTX) 174 # define LOCK_PROCESS 175 struct timezone { int __0; }; /* unused placebo */ 176 /* 177 * no comment !@! 178 */ 179 typedef unsigned int u_int; 180 # ifndef _NETINET_IN_SYSTM_INCLUDED /* i am about to comment... */ 181 typedef unsigned char u_char; 182 typedef unsigned short u_short; 183 typedef unsigned long u_long; 184 # endif 185 #endif 186 187 /* 188 * UNIX V.4 on and NCR 3000 189 */ 190 #if defined(SYS_SVR4) 191 # define STREAM 192 # define LOCK_PROCESS 193 # define SIZE_RETURNED_IN_BUFFER 194 #endif 195 196 /* 197 * (Univel/Novell) Unixware1 SVR4 on intel x86 processor 198 */ 199 #if defined(SYS_UNIXWARE1) 200 /* #define _POSIX_SOURCE */ 201 # define STREAM 202 # define STREAMS 203 # undef STEP_SLEW /* TWO step */ 204 # define LOCK_PROCESS 205 # define SIZE_RETURNED_IN_BUFFER 206 # include <sys/sockio.h> 207 # include <sys/types.h> 208 # include <netinet/in_systm.h> 209 #endif 210 211 /* 212 * DomainOS 213 */ 214 #if defined(SYS_DOMAINOS) 215 # define NTP_SYSCALLS_STD 216 /* older versions of domain/os don't have class D */ 217 # ifndef IN_CLASSD 218 # define IN_CLASSD(i) (((long)(i) & 0xf0000000) == 0xe0000000) 219 # define IN_CLASSD_NET 0xf0000000 220 # define IN_CLASSD_NSHIFT 28 221 # define IN_CLASSD_HOST 0xfffffff 222 # define IN_MULTICAST(i) IN_CLASSD(i) 223 # endif 224 #endif 225 226 /* 227 * Fujitsu UXP/V 228 */ 229 #if defined(SYS_UXPV) 230 # define LOCK_PROCESS 231 # define SIZE_RETURNED_IN_BUFFER 232 #endif 233 234 235 #endif /* 0 */ 236 237 /* 238 * Windows NT 239 */ 240 #if defined(SYS_WINNT) 241 # if !defined(HAVE_CONFIG_H) || !defined(__config) 242 error "NT requires config.h to be included" 243 # endif /* HAVE_CONFIG_H) */ 244 245 # define ifreq _INTERFACE_INFO 246 # define ifr_flags iiFlags 247 # define ifr_addr iiAddress.AddressIn 248 # define ifr_broadaddr iiBroadcastAddress.AddressIn 249 # define ifr_mask iiNetmask.AddressIn 250 251 # define isascii __isascii 252 # define isatty _isatty 253 # define mktemp _mktemp 254 # if 0 255 # define getpid GetCurrentProcessId 256 # endif 257 # include <windows.h> 258 # include <ws2tcpip.h> 259 # undef interface 260 typedef char *caddr_t; 261 #endif /* SYS_WINNT */ 262 263 int ntp_set_tod P((struct timeval *tvp, void *tzp)); 264 265 #if defined (SYS_CYGWIN32) 266 #include <windows.h> 267 #define __int64 long long 268 #endif 269 270 /*casey Tue May 27 15:45:25 SAT 1997*/ 271 #ifdef SYS_VXWORKS 272 273 /* casey's new defines */ 274 #define NO_MAIN_ALLOWED 1 275 #define NO_NETDB 1 276 #define NO_RENAME 1 277 278 /* in vxWorks we use FIONBIO, but the others are defined for old systems, so 279 * all hell breaks loose if we leave them defined we define USE_FIONBIO to 280 * undefine O_NONBLOCK FNDELAY O_NDELAY where necessary. 281 */ 282 #define USE_FIONBIO 1 283 /* end my new defines */ 284 285 #define TIMEOFDAY 0x0 /* system wide realtime clock */ 286 #define HAVE_GETCLOCK 1 /* configure does not set this ... */ 287 #define HAVE_NO_NICE 1 /* configure does not set this ... */ 288 #define HAVE_RANDOM 1 /* configure does not set this ... */ 289 #define HAVE_SRANDOM 1 /* configure does not set this ... */ 290 291 #define NODETACH 1 292 293 /* vxWorks specific additions to take care of its 294 * unix (non)complicance 295 */ 296 297 #include "vxWorks.h" 298 #include "ioLib.h" 299 #include "taskLib.h" 300 #include "time.h" 301 302 extern int sysClkRateGet P(()); 303 304 /* usrtime.h 305 * Bob Herlien's excellent time code find it at: 306 * ftp://ftp.atd.ucar.edu/pub/vxworks/vx/usrTime.shar 307 * I would recommend this instead of clock_[g|s]ettime() plus you get 308 * adjtime() too ... casey 309 */ 310 /* 311 extern int gettimeofday P(( struct timeval *tp, struct timezone *tzp )); 312 extern int settimeofday P((struct timeval *, struct timezone *)); 313 extern int adjtime P(( struct timeval *delta, struct timeval *olddelta )); 314 */ 315 316 /* in machines.c */ 317 extern void sleep P((int seconds)); 318 extern void alarm P((int seconds)); 319 /* machines.c */ 320 321 322 /* this is really this */ 323 #define getpid taskIdSelf 324 #define getclock clock_gettime 325 #define fcntl ioctl 326 #define _getch getchar 327 #define random rand 328 #define srandom srand 329 330 /* define this away for vxWorks */ 331 #define openlog(x,y) 332 /* use local defines for these */ 333 #undef min 334 #undef max 335 336 #endif /* SYS_VXWORKS */ 337 338 #ifdef NO_NETDB 339 /* These structures are needed for gethostbyname() etc... */ 340 /* structures used by netdb.h */ 341 struct hostent { 342 char *h_name; /* official name of host */ 343 char **h_aliases; /* alias list */ 344 int h_addrtype; /* host address type */ 345 int h_length; /* length of address */ 346 char **h_addr_list; /* list of addresses from name server */ 347 #define h_addr h_addr_list[0] /* address, for backward compatibility */ 348 }; 349 350 struct servent { 351 char *s_name; /* official service name */ 352 char **s_aliases; /* alias list */ 353 int s_port; /* port # */ 354 char *s_proto; /* protocol to use */ 355 }; 356 extern int h_errno; 357 358 #define TRY_AGAIN 2 359 360 struct hostent *gethostbyname P((char * netnum)); 361 struct hostent *gethostbyaddr P((char * netnum, int size, int addr_type)); 362 /* type is the protocol */ 363 struct servent *getservbyname P((char *name, char *type)); 364 #endif /* NO_NETDB */ 365 366 #ifdef NO_MAIN_ALLOWED 367 /* we have no main routines so lets make a plan */ 368 #define CALL(callname, progname, callmain) \ 369 extern int callmain (int,char**); \ 370 void callname (a0,a1,a2,a3,a4,a5,a6,a7,a8,a9,a10) \ 371 char *a0; \ 372 char *a1; \ 373 char *a2; \ 374 char *a3; \ 375 char *a4; \ 376 char *a5; \ 377 char *a6; \ 378 char *a7; \ 379 char *a8; \ 380 char *a9; \ 381 char *a10; \ 382 { \ 383 char *x[11]; \ 384 int argc; \ 385 char *argv[] = {progname,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL}; \ 386 int i; \ 387 for (i=0;i<11;i++) \ 388 x[i] = NULL; \ 389 x[0] = a0; \ 390 x[1] = a1; \ 391 x[2] = a2; \ 392 x[3] = a3; \ 393 x[4] = a4; \ 394 x[5] = a5; \ 395 x[6] = a6; \ 396 x[7] = a7; \ 397 x[8] = a8; \ 398 x[9] = a9; \ 399 x[10] = a10; \ 400 argc=1; \ 401 for (i=0; i<11;i++) \ 402 if (x[i]) \ 403 { \ 404 argv[argc++] = x[i]; \ 405 } \ 406 callmain(argc,argv); \ 407 } 408 #endif /* NO_MAIN_ALLOWED */ 409 /*casey Tue May 27 15:45:25 SAT 1997*/ 410 411 /* 412 * Here's where autoconfig starts to take over 413 */ 414 #ifdef HAVE_SYS_STROPTS_H 415 # ifdef HAVE_SYS_STREAM_H 416 # define STREAM 417 # endif 418 #endif 419 420 #ifndef RETSIGTYPE 421 # if defined(NTP_POSIX_SOURCE) 422 # define RETSIGTYPE void 423 # else 424 # define RETSIGTYPE int 425 # endif 426 #endif 427 428 #ifdef NTP_SYSCALLS_STD 429 # ifndef NTP_SYSCALL_GET 430 # define NTP_SYSCALL_GET 235 431 # endif 432 # ifndef NTP_SYSCALL_ADJ 433 # define NTP_SYSCALL_ADJ 236 434 # endif 435 #endif /* NTP_SYSCALLS_STD */ 436 437 #ifdef MPE 438 # include <sys/types.h> 439 # include <netinet/in.h> 440 # include <stdio.h> 441 # include <time.h> 442 443 /* missing functions that are easily renamed */ 444 445 # define _getch getchar 446 447 /* special functions that require MPE-specific wrappers */ 448 449 # define bind __ntp_mpe_bind 450 # define fcntl __ntp_mpe_fcntl 451 452 /* standard macros missing from MPE include files */ 453 454 # define IN_CLASSD(i) ((((long)(i))&0xf0000000)==0xe0000000) 455 # define IN_MULTICAST IN_CLASSD 456 # define ITIMER_REAL 0 457 # define MAXHOSTNAMELEN 64 458 459 /* standard structures missing from MPE include files */ 460 461 struct itimerval { 462 struct timeval it_interval; /* timer interval */ 463 struct timeval it_value; /* current value */ 464 }; 465 466 /* various declarations to make gcc stop complaining */ 467 468 extern int __filbuf(FILE *); 469 extern int __flsbuf(int, FILE *); 470 extern int gethostname(char *, int); 471 extern unsigned long inet_addr(char *); 472 extern char *strdup(const char *); 473 474 /* miscellaneous NTP macros */ 475 476 # define HAVE_NO_NICE 477 #endif /* MPE */ 478 479 #ifdef HAVE_RTPRIO 480 # define HAVE_NO_NICE 481 #else 482 # ifdef HAVE_SETPRIORITY 483 # define HAVE_BSD_NICE 484 # else 485 # ifdef HAVE_NICE 486 # define HAVE_ATT_NICE 487 # endif 488 # endif 489 #endif 490 491 #if !defined(HAVE_ATT_NICE) \ 492 && !defined(HAVE_BSD_NICE) \ 493 && !defined(HAVE_NO_NICE) \ 494 && !defined(SYS_WINNT) 495 #include "ERROR: You must define one of the HAVE_xx_NICE defines!" 496 #endif 497 498 /* 499 * use only one tty model - no use in initialising 500 * a tty in three ways 501 * HAVE_TERMIOS is preferred over HAVE_SYSV_TTYS over HAVE_BSD_TTYS 502 */ 503 504 #ifdef HAVE_TERMIOS_H 505 # define HAVE_TERMIOS 506 #else 507 # ifdef HAVE_TERMIO_H 508 # define HAVE_SYSV_TTYS 509 # else 510 # ifdef HAVE_SGTTY_H 511 # define HAVE_BSD_TTYS 512 # endif 513 # endif 514 #endif 515 516 #ifdef HAVE_TERMIOS 517 # undef HAVE_BSD_TTYS 518 # undef HAVE_SYSV_TTYS 519 #endif 520 521 #ifdef HAVE_SYSV_TTYS 522 # undef HAVE_BSD_TTYS 523 #endif 524 525 #if !defined(SYS_WINNT) && !defined(VMS) && !defined(SYS_VXWORKS) 526 # if !defined(HAVE_SYSV_TTYS) \ 527 && !defined(HAVE_BSD_TTYS) \ 528 && !defined(HAVE_TERMIOS) 529 #include "ERROR: no tty type defined!" 530 # endif 531 #endif /* SYS_WINNT || VMS || SYS_VXWORKS*/ 532 533 #ifdef WORDS_BIGENDIAN 534 # define XNTP_BIG_ENDIAN 1 535 #else 536 # define XNTP_LITTLE_ENDIAN 1 537 #endif 538 539 /* 540 * Byte order woes. The DES code is sensitive to byte order. This 541 * used to be resolved by calling ntohl() and htonl() to swap things 542 * around, but this turned out to be quite costly on Vaxes where those 543 * things are actual functions. The code now straightens out byte 544 * order troubles on its own, with no performance penalty for little 545 * end first machines, but at great expense to cleanliness. 546 */ 547 #if !defined(XNTP_BIG_ENDIAN) && !defined(XNTP_LITTLE_ENDIAN) 548 /* 549 * Pick one or the other. 550 */ 551 BYTE_ORDER_NOT_DEFINED_FOR_AUTHENTICATION 552 #endif 553 554 #if defined(XNTP_BIG_ENDIAN) && defined(XNTP_LITTLE_ENDIAN) 555 /* 556 * Pick one or the other. 557 */ 558 BYTE_ORDER_NOT_DEFINED_FOR_AUTHENTICATION 559 #endif 560 561 #endif /* __ntp_machine */ 562