ntp_machine.h revision 290001
1/* 2 * ntp_machine.h 3 * 4 * Collect all machine dependent idiosyncrasies in one place. 5 * 6 * The functionality formerly in this file is mostly handled by 7 * Autoconf these days. 8 */ 9 10#ifndef NTP_MACHINE_H 11#define NTP_MACHINE_H 12 13#ifdef HAVE_SYS_TIME_H 14# include <sys/time.h> 15#endif 16#include <time.h> 17 18#include "ntp_proto.h" 19 20/* 21 22 HEY! CHECK THIS OUT! 23 24 The per-system SYS_* #defins ARE NO LONGER USED, with the temporary 25 exception of SYS_WINNT. 26 27 If you find a hunk of code that is bracketed by a SYS_* macro and you 28 *know* that it is still needed, please let us know. In many cases the 29 code fragment is now handled somewhere else by autoconf choices. 30 31*/ 32 33/* 34 35HOW TO GET IP INTERFACE INFORMATION 36 37 Some UNIX V.4 machines implement a sockets library on top of 38 streams. For these systems, you must use send the SIOCGIFCONF down 39 the stream in an I_STR ioctl. This ususally also implies 40 USE_STREAMS_DEVICE FOR IF_CONFIG. Dell UNIX is a notable exception. 41 42WHAT DOES IOCTL(SIOCGIFCONF) RETURN IN THE BUFFER 43 44 UNIX V.4 machines implement a sockets library on top of streams. 45 When requesting the IP interface configuration with an ioctl(2) calll, 46 an array of ifreq structures are placed in the provided buffer. Some 47 implementations also place the length of the buffer information in 48 the first integer position of the buffer. 49 50 SIZE_RETURNED_IN_BUFFER - size integer is in the buffer 51 52WILL IOCTL(SIOCGIFCONF) WORK ON A SOCKET 53 54 Some UNIX V.4 machines do not appear to support ioctl() requests for the 55 IP interface configuration on a socket. They appear to require the use 56 of the streams device instead. 57 58 USE_STREAMS_DEVICE_FOR_IF_CONFIG - use the /dev/ip device for configuration 59 60MISC 61 62 DOSYNCTODR - Resync TODR clock every hour. 63 RETSIGTYPE - Define signal function type. 64 NO_SIGNED_CHAR_DECL - No "signed char" see include/ntp.h 65 LOCK_PROCESS - Have plock. 66*/ 67 68int ntp_set_tod (struct timeval *tvp, void *tzp); 69 70/*casey Tue May 27 15:45:25 SAT 1997*/ 71#ifdef SYS_VXWORKS 72 73/* casey's new defines */ 74#define NO_MAIN_ALLOWED 1 75#define NO_NETDB 1 76#define NO_RENAME 1 77 78/* in vxWorks we use FIONBIO, but the others are defined for old systems, so 79 * all hell breaks loose if we leave them defined we define USE_FIONBIO to 80 * undefine O_NONBLOCK FNDELAY O_NDELAY where necessary. 81 */ 82#define USE_FIONBIO 1 83/* end my new defines */ 84 85#define TIMEOFDAY 0x0 /* system wide realtime clock */ 86#define HAVE_GETCLOCK 1 /* configure does not set this ... */ 87#define HAVE_NO_NICE 1 /* configure does not set this ... */ 88#define HAVE_RANDOM 1 /* configure does not set this ... */ 89#define HAVE_SRANDOM 1 /* configure does not set this ... */ 90 91/* vxWorks specific additions to take care of its 92 * unix (non)complicance 93 */ 94 95#include "vxWorks.h" 96#include "ioLib.h" 97#include "taskLib.h" 98#include "time.h" 99 100extern int sysClkRateGet (); 101 102/* usrtime.h 103 * Bob Herlien's excellent time code find it at: 104 * ftp://ftp.atd.ucar.edu/pub/vxworks/vx/usrTime.shar 105 * I would recommend this instead of clock_[g|s]ettime() plus you get 106 * adjtime() too ... casey 107 */ 108/* 109extern int gettimeofday ( struct timeval *tp, struct timezone *tzp ); 110extern int settimeofday (struct timeval *, struct timezone *); 111extern int adjtime ( struct timeval *delta, struct timeval *olddelta ); 112 */ 113 114/* in machines.c */ 115extern void sleep (int seconds); 116extern void alarm (int seconds); 117/* machines.c */ 118 119 120/* this is really this */ 121#define getpid taskIdSelf 122#define getclock clock_gettime 123#define fcntl ioctl 124#define _getch getchar 125 126/* define this away for vxWorks */ 127#define openlog(x,y) 128/* use local defines for these */ 129#undef min 130#undef max 131 132#endif /* SYS_VXWORKS */ 133 134#ifdef NO_NETDB 135/* These structures are needed for gethostbyname() etc... */ 136/* structures used by netdb.h */ 137struct hostent { 138 char *h_name; /* official name of host */ 139 char **h_aliases; /* alias list */ 140 int h_addrtype; /* host address type */ 141 int h_length; /* length of address */ 142 char **h_addr_list; /* list of addresses from name server */ 143#define h_addr h_addr_list[0] /* address, for backward compatibility */ 144}; 145 146struct servent { 147 char *s_name; /* official service name */ 148 char **s_aliases; /* alias list */ 149 int s_port; /* port # */ 150 char *s_proto; /* protocol to use */ 151}; 152extern int h_errno; 153 154#define TRY_AGAIN 2 155 156struct hostent *gethostbyname (char * netnum); 157struct hostent *gethostbyaddr (char * netnum, int size, int addr_type); 158/* type is the protocol */ 159struct servent *getservbyname (char *name, char *type); 160#endif /* NO_NETDB */ 161 162#ifdef NO_MAIN_ALLOWED 163/* we have no main routines so lets make a plan */ 164#define CALL(callname, progname, callmain) \ 165 extern int callmain (int,char**); \ 166 void callname (a0,a1,a2,a3,a4,a5,a6,a7,a8,a9,a10) \ 167 char *a0; \ 168 char *a1; \ 169 char *a2; \ 170 char *a3; \ 171 char *a4; \ 172 char *a5; \ 173 char *a6; \ 174 char *a7; \ 175 char *a8; \ 176 char *a9; \ 177 char *a10; \ 178 { \ 179 char *x[11]; \ 180 int argc; \ 181 char *argv[] = {progname,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL}; \ 182 int i; \ 183 for (i=0;i<11;i++) \ 184 x[i] = NULL; \ 185 x[0] = a0; \ 186 x[1] = a1; \ 187 x[2] = a2; \ 188 x[3] = a3; \ 189 x[4] = a4; \ 190 x[5] = a5; \ 191 x[6] = a6; \ 192 x[7] = a7; \ 193 x[8] = a8; \ 194 x[9] = a9; \ 195 x[10] = a10; \ 196 argc=1; \ 197 for (i=0; i<11;i++) \ 198 if (x[i]) \ 199 { \ 200 argv[argc++] = x[i]; \ 201 } \ 202 callmain(argc,argv); \ 203 } 204#endif /* NO_MAIN_ALLOWED */ 205/*casey Tue May 27 15:45:25 SAT 1997*/ 206 207/* 208 * Here's where autoconfig starts to take over 209 */ 210#ifdef HAVE_SYS_STROPTS_H 211# ifdef HAVE_SYS_STREAM_H 212# define STREAM 213# endif 214#endif 215 216#ifndef RETSIGTYPE 217# if defined(NTP_POSIX_SOURCE) 218# define RETSIGTYPE void 219# else 220# define RETSIGTYPE int 221# endif 222#endif 223 224#ifdef NTP_SYSCALLS_STD 225# ifndef NTP_SYSCALL_GET 226# define NTP_SYSCALL_GET 235 227# endif 228# ifndef NTP_SYSCALL_ADJ 229# define NTP_SYSCALL_ADJ 236 230# endif 231#endif /* NTP_SYSCALLS_STD */ 232 233#ifdef MPE 234# include <sys/types.h> 235# include <netinet/in.h> 236# include <stdio.h> 237# include <time.h> 238 239/* missing functions that are easily renamed */ 240 241# define _getch getchar 242 243/* special functions that require MPE-specific wrappers */ 244 245# define bind __ntp_mpe_bind 246# define fcntl __ntp_mpe_fcntl 247 248/* standard macros missing from MPE include files */ 249 250# define IN_CLASSD(i) ((((long)(i))&0xf0000000)==0xe0000000) 251# define IN_MULTICAST IN_CLASSD 252# define ITIMER_REAL 0 253 254/* standard structures missing from MPE include files */ 255 256struct itimerval { 257 struct timeval it_interval; /* timer interval */ 258 struct timeval it_value; /* current value */ 259}; 260 261/* various declarations to make gcc stop complaining */ 262 263extern int __filbuf(FILE *); 264extern int __flsbuf(int, FILE *); 265extern int gethostname(char *, int); 266extern unsigned long inet_addr(char *); 267extern char *strdup(const char *); 268 269/* miscellaneous NTP macros */ 270 271# define HAVE_NO_NICE 272#endif /* MPE */ 273 274#ifdef HAVE_RTPRIO 275# define HAVE_NO_NICE 276#else 277# ifdef HAVE_SETPRIORITY 278# define HAVE_BSD_NICE 279# else 280# ifdef HAVE_NICE 281# define HAVE_ATT_NICE 282# endif 283# endif 284#endif 285 286#if !defined(HAVE_ATT_NICE) \ 287 && !defined(HAVE_BSD_NICE) \ 288 && !defined(HAVE_NO_NICE) 289#include "ERROR: You must define one of the HAVE_xx_NICE defines!" 290#endif 291 292#ifndef HAVE_TIMEGM 293extern time_t timegm (struct tm *); 294#endif 295 296 297#endif /* NTP_MACHINE_H */ 298