ntp_syscall.h revision 82498 
1234287Sdim/*
2234287Sdim * ntp_syscall.h - various ways to perform the ntp_adjtime() and ntp_gettime()
3234287Sdim * 		   system calls.
4234287Sdim */
5234287Sdim
6234287Sdim#ifndef NTP_SYSCALL_H
7234287Sdim#define NTP_SYSCALL_H
8234287Sdim
9234287Sdim#ifdef HAVE_CONFIG_H
10234287Sdim#include <config.h>
11234287Sdim#endif
12234287Sdim
13234287Sdim#ifdef HAVE_SYS_TIMEX_H
14234287Sdim# include <sys/timex.h>
15249423Sdim#endif
16234287Sdim
17234287Sdim#ifdef NTP_SYSCALLS_STD
18249423Sdim# define ntp_adjtime(t)		syscall(SYS_ntp_adjtime, (t))
19234287Sdim# define ntp_gettime(t)		syscall(SYS_ntp_gettime, (t))
20234287Sdim#else /* !NTP_SYSCALLS_STD */
21234287Sdim# ifdef HAVE___ADJTIMEX
22234287Sdimextern	int	__adjtimex	P((struct timex *));
23234287Sdim
24234287Sdim#  define ntp_adjtime(t)	__adjtimex((t))
25234287Sdim
26234287Sdimstatic inline int
27234287Sdimntp_gettime(
28234287Sdim	struct ntptimeval *ntv
29234287Sdim	)
30234287Sdim{
31234287Sdim	struct timex tntx;
32234287Sdim	int result;
33234287Sdim
34234287Sdim	tntx.modes = 0;
35234287Sdim	result = __adjtimex (&tntx);
36234287Sdim	ntv->time = tntx.time;
37234287Sdim	ntv->maxerror = tntx.maxerror;
38234287Sdim	ntv->esterror = tntx.esterror;
39234287Sdim#ifdef NTP_API
40234287Sdim# if NTP_API > 3
41234287Sdim	ntv->tai = tntx.tai;
42234287Sdim# endif
43234287Sdim#endif
44234287Sdim	return(result);
45234287Sdim}
46234287Sdim# else /* !HAVE__ADJTIMEX */
47234287Sdim#  ifdef HAVE___NTP_GETTIME
48234287Sdim#   define ntp_gettime(t)	__ntp_gettime((t))
49234287Sdim#  endif
50234287Sdim# endif /* !HAVE_ADJTIMEX */
51234287Sdim#endif /* !NTP_SYSCALLS_STD */
52234287Sdim
53234287Sdim#endif /* NTP_SYSCALL_H */
54234287Sdim