kc3-lang/gnulib/lib/settime.c

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• Hash : 9de26050
  Author :
  Date : 2009-09-02T17:06:43
  

  errno: use consistently
  
  * lib/c-stack.c (ENOTSUP): <errno.h> guarantees a definition.
  * lib/canonicalize-lgpl.c (ENAMETOOLONG): Likewise.
  * lib/canonicalize.c (ELOOP): Likewise.
  * lib/inet_ntop.c (EAFNOSUPPORT): Likewise.
  * lib/inet_pton.c (EAFNOSUPPORT): Likewise.
  * lib/lchown.c (EOPNOTSUPP): Likewise.
  * lib/openat-priv.h (ENOSYS, EOPNOTSUPP): Likewise.
  * lib/savewd.c (ESTALE): Likewise.
  * lib/settime.c (ENOSYS): Likewise.
  * lib/utimens.c (ENOSYS): Likewise.
  * lib/xgethostname.c (ENAMETOOLONG): Likewise.
  * lib/chdir-safer.c (ELOOP): Likewise.
  (chdir_no_follow): Use HAVE_READLINK, not ELOOP, as witness.
  * modules/c-stack (Depends-on): Add errno.
  * modules/canonicalize (Depends-on): Likewise.
  * modules/chdir-safer (Depends-on): Likewise.
  * modules/fdopendir (Depends-on): Likewise.
  * modules/inet_ntop (Depends-on): Likewise.
  * modules/inet_pton (Depends-on): Likewise.
  * modules/lchown (Depends-on): Likewise.
  * modules/openat (Depends-on): Likewise.
  * modules/savewd (Depends-on): Likewise.
  * modules/settime (Depends-on): Likewise.
  * m4/chdir-safer.m4 (gl_CHDIR_SAFER): Check for readlink.
  
  Signed-off-by: Eric Blake <ebb9@byu.net>
  

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• lib/settime.c

• /* settime -- set the system clock
  
     Copyright (C) 2002, 2004, 2005, 2006, 2007, 2009 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 <http://www.gnu.org/licenses/>.  */
  
  /* Written by Paul Eggert.  */
  
  #include <config.h>
  
  #include "timespec.h"
  
  #include <sys/time.h>
  #include <unistd.h>
  
  #include <errno.h>
  
  /* 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
  }
  

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