path: root/support/dktools/dk-pwd.c

/*
	WARNING: This file was generated by dkct.
	Changes you make here will be lost if dkct is run again!
	You should modify the original source and run dkct on it.
	Original source: dk-pwd.ctr
*/

/*
Copyright (C) 2015-2017, Dirk Krause

Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:

* Redistributions of source code must retain the above copyright notice,
  this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above opyright notice,
  this list of conditions and the following disclaimer in the documentation
  and/or other materials provided with the distribution.
* Neither the name of the author nor the names of contributors may be used
  to endorse or promote products derived from this software without specific
  prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS IS''
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED.
IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/

/**	@file dk-pwd.c The dk-pwd module.
*/


#line 10 "dk-pwd.ctr"



#include "dk4conf.h"
#include "dk4types.h"
#include "dk4const.h"
#include "dk4app.h"
#include "dk4aopt.h"
#include "dk4vers.h"
#include "dk4mpl.h"
#include "dk4getcwdd.h"
#include "dk4mem.h"
#include "dk4fput.h"





#line 27 "dk-pwd.ctr"


/**	Default help text, used if help text file is not found.
*/
static const dkChar * const	dk_pwd_help_text[] = {
dkT(""),
dkT("Show current directory"),
dkT(""),
dkT("dk-pwd [<options>]"),
dkT(""),
dkT("Options:"),
dkT(""),
dkT("-l\t\tShow last part of path only."),
dkT("-b\t\tBeautify (replace backslashes by slashes)."),
dkT(""),
dkT("--help\t\tShow this short help text."),
dkT("--manual\t*** SHOW FULL MANUAL. ***"),
dkT("--version\tShow version information."),
dkT("--license\tShow license information."),
dkT(""),
NULL


#line 49 "dk-pwd.ctr"
};



/**	License conditions.
*/
static const dkChar * const	dk_pwd_license_text[] = {
dkT("This software uses code from the following projects, either directly or as"),
dkT("a library:"),
dkT(""),
dkT("dktools\t\tDirk Krause's tools and libraries."),
dkT("\t\tSee http://dktools.sourceforge.net/ for more information."),
#if DK4_HAVE_ZLIB_H
dkT(""),
dkT("zlib\t\tData compression library."),
dkT("\t\tSee http://www.zlib.net/ for more information."),
#endif
#if DK4_HAVE_BZLIB_H
dkT(""),
dkT("bzip2\t\tData compression program and library."),
dkT("\t\tSee http://www.bzip.org/ for more information."),
#endif
dkT(""),
dkT("All the licenses below apply to the program."),
dkT("Licenses for used libraries are shown as found on my Scientific Linux 6.x"),
dkT("computer in the /usr/share/doc directory on 2015-04-01. Check the project"),
dkT("homepages of the used libraries for additional information and/or updated"),
dkT("license terms."),
dkT(""),
dkT(""),
dkT("DK tools and libraries license"),
dkT("=============================="),
dkT("Copyright (c) 2015-2016, Dirk Krause"),
dkT("All rights reserved."),
dkT(""),
dkT("Redistribution and use in source and binary forms, with or without"),
dkT("modification, are permitted provided that the following conditions are met:"),
dkT(""),
dkT("* Redistributions of source code must retain the above copyright notice,"),
dkT("  this list of conditions and the following disclaimer."),
dkT("* Redistributions in binary form must reproduce the above copyright"),
dkT("  notice, this list of conditions and the following disclaimer in the"),
dkT("  documentation and/or other materials provided with the distribution."),
dkT("* Neither the name of the Dirk Krause nor the names of contributors may be"),
dkT("  used to endorse or promote products derived from this software without"),
dkT("  specific prior written permission."),
dkT(""),
dkT("THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS \"AS IS\""),
dkT("AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE"),
dkT("IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE"),
dkT("ARE DISCLAIMED."),
dkT(""),
dkT("IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,"),
dkT("INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,"),
dkT("BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,"),
dkT("DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY"),
dkT("OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING"),
dkT("NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,"),
dkT("EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."),
#if DK4_HAVE_ZLIB_H
dkT(""),
dkT(""),
dkT("Zlib license"),
dkT("============"),
dkT("(C) 1995-2004 Jean-loup Gailly and Mark Adler"),
dkT(""),
dkT("This software is provided 'as-is', without any express or implied"),
dkT("warranty.  In no event will the authors be held liable for any damages"),
dkT("arising from the use of this software."),
dkT(""),
dkT("Permission is granted to anyone to use this software for any purpose,"),
dkT("including commercial applications, and to alter it and redistribute it"),
dkT("freely, subject to the following restrictions:"),
dkT(""),
dkT("1. The origin of this software must not be misrepresented; you must not"),
dkT("   claim that you wrote the original software. If you use this software"),
dkT("   in a product, an acknowledgment in the product documentation would be"),
dkT("   appreciated but is not required."),
dkT("2. Altered source versions must be plainly marked as such, and must not be"),
dkT("   misrepresented as being the original software."),
dkT("3. This notice may not be removed or altered from any source distribution."),
dkT(""),
dkT("Jean-loup Gailly        Mark Adler"),
dkT("jloup@gzip.org          madler@alumni.caltech.edu"),
#endif
#if DK4_HAVE_BZLIB_H
dkT(""),
dkT(""),
dkT("Bzip2 and libbzip2 library license"),
dkT("=================================="),
dkT("This program, \"bzip2\", the associated library \"libbzip2\", and all"),
dkT("documentation, are copyright (C) 1996-2007 Julian R Seward.  All"),
dkT("rights reserved."),
dkT(""),
dkT("Redistribution and use in source and binary forms, with or without"),
dkT("modification, are permitted provided that the following conditions"),
dkT("are met:"),
dkT(""),
dkT("1. Redistributions of source code must retain the above copyright"),
dkT("   notice, this list of conditions and the following disclaimer."),
dkT(""),
dkT("2. The origin of this software must not be misrepresented; you must "),
dkT("   not claim that you wrote the original software.  If you use this "),
dkT("   software in a product, an acknowledgment in the product "),
dkT("   documentation would be appreciated but is not required."),
dkT(""),
dkT("3. Altered source versions must be plainly marked as such, and must"),
dkT("   not be misrepresented as being the original software."),
dkT(""),
dkT("4. The name of the author may not be used to endorse or promote "),
dkT("   products derived from this software without specific prior written "),
dkT("   permission."),
dkT(""),
dkT("THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS"),
dkT("OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED"),
dkT("WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE"),
dkT("ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY"),
dkT("DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL"),
dkT("DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE"),
dkT("GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS"),
dkT("INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,"),
dkT("WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING"),
dkT("NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS"),
dkT("SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."),
dkT(""),
dkT("Julian Seward, jseward@bzip.org"),
dkT("bzip2/libbzip2 version 1.0.5 of 10 December 2007"),
#endif
dkT(""),
NULL


#line 180 "dk-pwd.ctr"
};



/**	Buffer to store the directory.
*/
static dkChar	cwdbuf[DK4_MAX_PATH];



/**	Constant texts used by the module, not localized.
*/
static const dkChar * const dk_pwd_kwnl[] = {
/* 0 */
dkT("dktools"),

/* 1 */
dkT("dk-pwd.txt"),

/* 2 */
dkT("dk-pwd.str"),

NULL


#line 207 "dk-pwd.ctr"
};



/**	Constant texts used by the program, replaced by localized texts.
*/
static const dkChar * const dk_pwd_kw_def[] = {
/* 0 */
dkT("Failed to find current directory!"),

NULL


#line 220 "dk-pwd.ctr"
};


/**     Options used by program.
*/
static const dk4_option_specification_t dk_pwd_options[] = {

  /*	Show final part of directory name only.
  */
  { dkT('l'),	dkT("last"),		DK4_OPT_ARG_NONE },

  /*	Replace backslashes by slashes.
  */
  { dkT('b'),	dkT("beautify"),	DK4_OPT_ARG_NONE }
};



/**	Localized texts.
*/
static const dkChar * const	*dk_pwd_msg	=	dk_pwd_kw_def;



/**	Application structure for diagnostics.
*/
static	dk4_app_t	*app	=	NULL;



/**	Number of options in the dk_pwd_options array.
*/
static const size_t dk_pwd_sz_options =
sizeof(dk_pwd_options)/sizeof(dk4_option_specification_t);



/**	Number of entries in the message texts array.
*/
static size_t	dk_pwd_sz_msg	=
sizeof(dk_pwd_kw_def)/sizeof(DK4_PDKCHAR) - 1;



/**	Exit status code returned by the program.
*/
static int exval = EXIT_FAILURE;



static
void
dk_pwd_beautify(dkChar *buf)
{
  while(dkT('\0') != *buf) {
    if (dkT('\\') == *buf) { *buf = dkT('/'); }
    buf++;
  }
}



static
dkChar *
dk_pwd_last_part(dkChar *buf)
{
  dkChar	*back	= NULL;
  dkChar	*orbuf;

  orbuf = buf;
  while (dkT('\0') != *buf) {
    if ((dkT('\\') == *buf) || (dkT('/') == *buf)) { back = buf; }
    buf++;
  }
  if (NULL != back) { back++; } else { back = orbuf; }
  return back;
}



static
void
dk_pwd_show_current_directory(void)
{
  dk4_er_t	 er;
  dkChar	*ptr;

  dk4error_init(&er);
  if (0 != dk4getcwd(cwdbuf, DK4_SIZEOF(cwdbuf,dkChar), &er)) {
    if (0 != dk4app_opt_is_set_short(app, dkT('b'), NULL)) {
      dk_pwd_beautify(cwdbuf);
    }
    ptr = cwdbuf;
    if (0 != dk4app_opt_is_set_short(app, dkT('l'), NULL)) {
      ptr = dk_pwd_last_part(cwdbuf);
    }
    exval = EXIT_SUCCESS;
    if (0 == dk4fputs(ptr, stdout, NULL)) {
      exval = EXIT_FAILURE;
    }
    if (0 == dk4fputc(dkT('\n'), stdout, NULL)) {
      exval = EXIT_FAILURE;
    }
  } else {
    dk4app_log_1(app, dk_pwd_msg, dk_pwd_sz_msg, DK4_LL_ERROR, 0);
  }
}



/**	Main function.
	@param	argc	Number of command line arguments.
	@param	argv	Command line arguments array.
	@return	0 on success, all other values indicate errors.
*/
#if DK4_CHAR_SIZE > 1
int wmain(int argc, wchar_t *argv[])
#else
int main(int argc, char *argv[])
#endif
{
  /*
	Initialize stdout and stderr for dkChar output.
  */
  dk4fput_initialize_stdout();
  dk4fput_initialize_stderr();
  /*
	Create dk4_app_t structure.
  */
  app = dk4app_open_cmd(
    argc, argv, dk_pwd_options, dk_pwd_sz_options,
    dk_pwd_kwnl[0], DKT_VERSION_DK,
    dk_pwd_kwnl[1], dk_pwd_help_text, dk_pwd_license_text
  );
  if (NULL != app) {
    /*
	Obtain string table (array of localized strings).
	Memory is managed in the dk4_app_t structure.
    */
    dk_pwd_sz_msg = dk4app_string_table_size(dk_pwd_kw_def);
    dk_pwd_msg    = dk4app_string_table(app, dk_pwd_kwnl[2], dk_pwd_kw_def);
    /*
	Check how to run.
    */
    if (0 != dk4app_can_run_normally(app)) {
      /*
	Run normally.
      */
      dk_pwd_show_current_directory();
    } else {
      /*
	--help, --version, --license, --manual was used. Show information.
      */
      if (0 != dk4app_help_version_license(app)) {
        exval = EXIT_SUCCESS;
      }
    }
    /*
	Destroy dk4_app_t structure, release memory.
	Memory for the string tables is released here too.
    */
    dk4app_close(app);
  }
  /*
	Flush stdout and stderr, restore settings from program start.
  */
  fflush(stdout);
  fflush(stderr);
  dk4fput_cleanup_stderr();
  dk4fput_cleanup_stdout();
  /*
	Return exit status code.
  */
  exit(exval); return exval;
}