From f209440bcfb5bee2386f00392f00f68c716850ce Mon Sep 17 00:00:00 2001 From: Rich Felker Date: Tue, 5 Apr 2011 15:38:20 -0400 Subject: implement the adjtime and adjtimex functions (nonstandard) --- src/linux/adjtime.c | 27 +++++++++++++++++++++++++++ src/linux/adjtimex.c | 7 +++++++ 2 files changed, 34 insertions(+) create mode 100644 src/linux/adjtime.c create mode 100644 src/linux/adjtimex.c (limited to 'src/linux') diff --git a/src/linux/adjtime.c b/src/linux/adjtime.c new file mode 100644 index 00000000..fa8af9f0 --- /dev/null +++ b/src/linux/adjtime.c @@ -0,0 +1,27 @@ +#define _GNU_SOURCE +#include +#include +#include +#include "syscall.h" + +int adjtime(const struct timeval *in, struct timeval *out) +{ + struct timex tx = { 0 }; + if (in) { + if (in->tv_sec > 1000 || in->tv_usec > 1000000000) { + errno = EINVAL; + return -1; + } + tx.offset = in->tv_sec*1000000 + in->tv_usec; + tx.modes = ADJ_OFFSET_SINGLESHOT; + } + if (syscall(SYS_adjtimex, &tx) < 0) return -1; + if (out) { + out->tv_sec = tx.offset / 1000000; + if ((out->tv_usec = tx.offset % 1000000) < 0) { + out->tv_sec--; + out->tv_usec += 1000000; + } + } + return 0; +} diff --git a/src/linux/adjtimex.c b/src/linux/adjtimex.c new file mode 100644 index 00000000..91de6824 --- /dev/null +++ b/src/linux/adjtimex.c @@ -0,0 +1,7 @@ +#include +#include "syscall.h" + +int adjtimex(struct timex *tx) +{ + return syscall(SYS_adjtimex, tx); +} -- cgit v1.2.1