From 8e7ba70eba02f88d4f3ba12e07ab9c7bdf32240a Mon Sep 17 00:00:00 2001 From: Igor Pashev Date: Sun, 9 Sep 2012 02:33:07 +0000 Subject: Imported Upstream version 8.17 --- lib/settime.c | 59 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 59 insertions(+) create mode 100644 lib/settime.c (limited to 'lib/settime.c') diff --git a/lib/settime.c b/lib/settime.c new file mode 100644 index 00000000..04f241d0 --- /dev/null +++ b/lib/settime.c @@ -0,0 +1,59 @@ +/* settime -- set the system clock + + Copyright (C) 2002, 2004-2007, 2009-2012 Free Software Foundation, Inc. + + This program is free software: you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see . */ + +/* Written by Paul Eggert. */ + +#include + +#include "timespec.h" + +#include +#include + +#include + +/* Set the system time. */ + +int +settime (struct timespec const *ts) +{ +#if defined CLOCK_REALTIME && HAVE_CLOCK_SETTIME + { + int r = clock_settime (CLOCK_REALTIME, ts); + if (r == 0 || errno == EPERM) + return r; + } +#endif + +#if HAVE_SETTIMEOFDAY + { + struct timeval tv; + + tv.tv_sec = ts->tv_sec; + tv.tv_usec = ts->tv_nsec / 1000; + return settimeofday (&tv, 0); + } +#elif HAVE_STIME + /* This fails to compile on OSF1 V5.1, due to stime requiring + a 'long int*' and tv_sec is 'int'. But that system does provide + settimeofday. */ + return stime (&ts->tv_sec); +#else + errno = ENOSYS; + return -1; +#endif +} -- cgit v1.2.3