part of the original file [ uname.c ]

/* uname -- print system information

   Copyright (C) 1989, 1992, 1993, 1996, 1997, 1999-2005,
   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 .  */

/* Written by David MacKenzie  */

    /* This kludge works around a bug in Mac OS X.  */
          if (element == unknown)
            {
              cpu_type_t cputype;
              size_t s = sizeof cputype;
              NXArchInfo const *ai;
              if (sysctlbyname ("hw.cputype", &cputype, &s, NULL, 0) == 0
                  && (ai = NXGetArchInfoFromCpuType (cputype,
                                                     CPU_SUBTYPE_MULTIPLE))
                  != NULL)
                element = ai->name;

http://en.wikipedia.org/wiki/Kludge

rename.c

/* Work around the bug in some systems whereby rename fails when the source
   file has a trailing slash.  The rename functions of SunOS 4.1.1_U1 and
   mips-dec-ultrix4.4 have this bug.
   Copyright (C) 2001, 2002, 2003, 2005 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, 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, write to the Free Software Foundation,
   Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */

/* written by Volker Borchert */

#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#undef rename

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#include "dirname.h"
#include "xalloc.h"

/* Rename the file SRC to DST, removing any trailing
   slashes from SRC.  Needed for SunOS 4.1.1_U1.  */

int
rpl_rename (char const *src, char const *dst)
{
  char *src_temp;
  int ret_val;
  size_t s_len = strlen (src);

  if (s_len && src[s_len - 1] == '/')
    {
      src_temp = xstrdup (src);
      strip_trailing_slashes (src_temp);
    }
  else
    src_temp = (char *) src;

  ret_val = rename (src_temp, dst);

  if (src_temp != src)
    free (src_temp);

  return ret_val;
}

http://www.opengroup.org/onlinepubs/009695399/functions/strdup.html
http://en.wikipedia.org/wiki/SunOS

data.configuration file


/* Source Installer, Copyright (c) 2005,2006,2007 Claudio Fontana

preferences.c - user choices saved in the preferences file

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 (look for the file called COPYING);
if not, write to the Free Software Foundation, Inc.,
51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA

You can contact the author (Claudio Fontana) by sending a mail
to claudio@gnu.org
*/

#include "src_stdinc.h"
#include "preferences.h"

struct srcinst_parsed_data _keywords_preferences[SRCINST_PREFERENCES_NKEYS]
= {
{"ADD_DIRECTORY", 0, "%s"},
{"INSTALL", 0, "%d"},
{"KEEP_SOURCE", 0, "%d"},
{"MANUAL_CONFIGURE", 0, "%d"},
{"PREFIX", 0, "%s"},
{"QUIET", 0, "%d"},
{"SRC_COMPRESS", 0, "%s"},
{"STRIP", 0, "%d"}
};

http://jan.newmarch.name/OS/l5_2.html
http://cprogramminglanguage.net/c-structure.aspx