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kc3-lang/gnulib/lib/fdopen.c

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  • Author : Jim Meyering
    Date : 2012-01-01 10:04:58
    Hash : 1602f0af
    Message : maint: update all copyright year number ranges Run "make update-copyright".

  • lib/fdopen.c
  • /* Open a stream with a given file descriptor.
       Copyright (C) 2011-2012 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 <http://www.gnu.org/licenses/>.  */
    
    #include <config.h>
    
    /* Specification.  */
    #include <stdio.h>
    
    #include <errno.h>
    
    #if HAVE_MSVC_INVALID_PARAMETER_HANDLER
    # include "msvc-inval.h"
    #endif
    
    #undef fdopen
    
    #if HAVE_MSVC_INVALID_PARAMETER_HANDLER
    static FILE *
    fdopen_nothrow (int fd, const char *mode)
    {
      FILE *result;
    
      TRY_MSVC_INVAL
        {
          result = fdopen (fd, mode);
        }
      CATCH_MSVC_INVAL
        {
          result = NULL;
        }
      DONE_MSVC_INVAL;
    
      return result;
    }
    #else
    # define fdopen_nothrow fdopen
    #endif
    
    FILE *
    rpl_fdopen (int fd, const char *mode)
    {
      int saved_errno = errno;
      FILE *fp;
    
      errno = 0;
      fp = fdopen_nothrow (fd, mode);
      if (fp == NULL)
        {
          if (errno == 0)
            errno = EBADF;
        }
      else
        errno = saved_errno;
    
      return fp;
    }