kc3-lang/gnulib/lib/strerror.c

• Show log

  Commit

• Hash : 73f48e6f
  Author :
  Date : 2007-10-11T14:43:30
  

  Simplify and modernize strerror substitute, partly to fix Solaris 8 bug.
  
  * lib/strerror.c: Include <string.h> always, to test interface,
  and to remove the need for the dummy.
  Include intprops.h to compute width instead of doing it ourselves
  and missing a CHAR_BIT declaration, which broke tar 1.19 on Solaris 8.
  (strerror): Define it to return NULL if there's no system strerror.
  (rpl_strerror): Use INT_STRLEN_BOUND to compute bound.
  Omit !HAVE_STRERROR code.  We don't need to worry about supporting
  ancient pre-strerror Unix systems well any more.  Saying "unknown
  system error" is enough.
  * lib/string.in.h (strerror): Simplify the ifdef to reflect the
  simpler strerror.c implementation.
  * m4/strerror.m4 (gl_FUNC_STRERROR_SEPARATE, gl_PREREQ_STDERROR):
  Simplify the tests to reflect the simpler strerror implementation.
  * modules/strerror (Depends-on): Add intprops.
  

Download

• lib/strerror.c

• /* strerror.c --- POSIX compatible system error routine
  
     Copyright (C) 2007 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/>.  */
  
  #include <config.h>
  
  #include <string.h>
  
  #if REPLACE_STRERROR
  
  # include <stdio.h>
  
  # include "intprops.h"
  
  # undef strerror
  # if ! HAVE_DECL_STRERROR
  #  define strerror(n) NULL
  # endif
  
  char *
  rpl_strerror (int n)
  {
    char *result = strerror (n);
  
    if (! result)
      {
        static char const fmt[] = "Unknown error (%d)";
        static char mesg[sizeof fmt + INT_STRLEN_BOUND (n)];
        sprintf (mesg, fmt, n);
        return mesg;
      }
  
    return result;
  }
  
  #endif
  

Download