IABSD.fr/xenocara/app/xfs/os/error.c

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• Author : matthieu
  Date : 2006-11-26 14:43:35
  Hash : 88a6319a
  Message : Importing from X.Org indiviual releases

• app/xfs/os/error.c

• /* $Xorg: error.c,v 1.4 2001/02/09 02:05:44 xorgcvs Exp $ */
  /*
   * error message handling
   */
  /*
  Copyright 1994, 1998  The Open Group
  
  Permission to use, copy, modify, distribute, and sell this software and its
  documentation for any purpose is hereby granted without fee, provided that
  the above copyright notice appear in all copies and that both that
  copyright notice and this permission notice appear in supporting
  documentation.
  
  The above copyright notice and this permission notice shall be included in
  all copies or substantial portions of the Software.
  
  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
  OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
  AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  
  Except as contained in this notice, the name of The Open Group shall not be
  used in advertising or otherwise to promote the sale, use or other dealings
  in this Software without prior written authorization from The Open Group.
   * Copyright 1991 Network Computing Devices;
   * Portions Copyright 1987 by Digital Equipment Corporation 
   *
   * Permission to use, copy, modify, distribute, and sell this software and
   * its documentation for any purpose is hereby granted without fee, provided
   * that the above copyright notice appear in all copies and that both that
   * copyright notice and this permission notice appear in supporting
   * documentation, and that the names of Network Computing Devices, or Digital
   * not be used in advertising or publicity pertaining to distribution
   * of the software without specific, written prior permission.
   *
   * NETWORK COMPUTING DEVICES, DIGITAL DISCLAIM ALL WARRANTIES WITH
   * REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF
   * MERCHANTABILITY AND FITNESS.  IN NO EVENT SHALL NETWORK COMPUTING DEVICES,
   * OR DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL
   * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
   * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
   * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF
   * THIS SOFTWARE.
   */
  /* $XFree86: error.c,v 1.11 2002/10/15 01:45:03 dawes Exp $ */
  
  #include	<stdio.h>
  #include	<stdlib.h>
  #include	<stdarg.h>
  #include	<X11/Xos.h>
  
  #ifndef X_NOT_POSIX
  #ifdef _POSIX_SOURCE
  #include <limits.h>
  #else
  #define _POSIX_SOURCE
  #include <limits.h>
  #undef _POSIX_SOURCE
  #endif
  #endif
  #ifndef PATH_MAX
  #include <sys/param.h>
  #ifndef PATH_MAX
  #ifdef MAXPATHLEN
  #define PATH_MAX MAXPATHLEN
  #else
  #define PATH_MAX 1024
  #endif
  #endif
  #endif
  
  #ifdef USE_SYSLOG
  #include	<syslog.h>
  #endif
  
  #include	<errno.h>
  
  #include	"misc.h"
  
  extern char *progname;
  
  Bool        UseSyslog;
  #ifdef USE_SYSLOG
  Bool        log_open = FALSE;
  #endif
  char        ErrorFile[PATH_MAX];
  static char	CurrentErrorFile[PATH_MAX];
  
  static void
  abort_server(void)
  {
      fflush(stderr);
  
  #ifdef SABER
      saber_stop();
  #else
      _exit(1);
  #endif
  }
  
  void
  InitErrors(void)
  {
      int         i;
  
  #ifdef USE_SYSLOG
      if (UseSyslog && !log_open) {
  	openlog("xfs", LOG_PID, LOG_DAEMON);
  	log_open = TRUE;
  	return;
      }
  #endif
  
      if (ErrorFile[0] && strcmp(CurrentErrorFile, ErrorFile) != 0) {
  	i = creat(ErrorFile, 0666);
  	if (i != -1) {
  	    dup2(i, 2);
  	    close(i);
  	} else {
  	    ErrorF("can't open error file \"%s\"\n", ErrorFile);
  	}
  	strncpy(CurrentErrorFile, ErrorFile, sizeof CurrentErrorFile);
      }
  }
  
  void
  CloseErrors(void)
  {
  #ifdef USE_SYSLOG
      if (UseSyslog) {
  	closelog();
  	log_open = FALSE;
  	return;
      }
  #endif
  }
  
  void
  Error(char *str)
  {
  #ifdef USE_SYSLOG
      if (UseSyslog) {
  	syslog(LOG_ERR, "%s: %s", str, strerror(errno));
  	return;
      }
  #endif
      perror(str);
  }
  
  /*
   * used for informational messages
   */
  void
  NoticeF(char *f, ...)
  {
      /* XXX should Notices just be ignored if not using syslog? */
      va_list args;
      va_start(args, f);
  #ifdef USE_SYSLOG
      if (UseSyslog) {
  	vsyslog(LOG_NOTICE, f, args);
  	return;
      }
  #else
      fprintf(stderr, "%s notice: ", progname);
      vfprintf(stderr, f, args);
  #endif /* USE_SYSLOG */
      va_end(args);
  }
  
  /*
   * used for non-fatal error messages
   */
  void
  ErrorF(char * f, ...)
  {
      va_list args;
      va_start(args, f);
  #ifdef USE_SYSLOG
      if (UseSyslog) {
  	vsyslog(LOG_WARNING, f, args);
  	return;
      }
  #else
      fprintf(stderr, "%s error: ", progname);
      vfprintf(stderr, f, args);
  #endif
      va_end(args);
  }
  
  void
  FatalError(char * f, ...)
  {
      va_list args;
      va_start(args, f);
  #ifdef USE_SYSLOG
      if (UseSyslog) {
  	vsyslog(LOG_ERR, f, args);
  	return;
      }
  #else
      fprintf(stderr, "%s fatal error: ", progname);
      vfprintf(stderr, f, args);
  #endif
      va_end(args);
      abort_server();
      /* NOTREACHED */
  }