libSystem
/* $Id$ */
/* Copyright (c) 2014-2021 Pierre Pronchery <khorben@defora.org> */
/* This file is part of DeforaOS System libSystem */
/* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* 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
* HOLDER 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. */
#include <unistd.h>
#include <stdio.h>
#include <string.h>
#include "System/config.h"
#include "System/error.h"
#ifndef PROGNAME
# define PROGNAME "configctl"
#endif
/* configctl */
/* private */
/* prototypes */
static int _configctl(int verbose, int write, char const * filename, int argc,
char * argv[]);
static int _configctl_list(char const * filename);
static void _configctl_print(int verbose, char const * section,
char const * variable, char const * value);
static int _configctl_error(char const * progname, int ret);
static int _usage(void);
/* functions */
/* configctl */
static int _configctl_do(Config * config, int verbose, char const * section,
char const * key, char const * value);
static int _configctl(int verbose, int write, char const * filename, int argc,
char * argv[])
{
int ret = 0;
Config * config;
int i;
char * section;
char * key;
char * value = NULL;
if((config = config_new()) == NULL)
return -_configctl_error(PROGNAME, 1);
if(config_load(config, filename) != 0)
{
config_delete(config);
return -_configctl_error(PROGNAME, 1);
}
for(i = 0; i < argc; i++)
{
section = argv[i];
if((key = strchr(section, '.')) == NULL)
{
key = section;
section = NULL;
}
else
*(key++) = '\0';
if(write && (value = strchr(key, '=')) != NULL)
*(value++) = '\0';
ret |= _configctl_do(config, verbose, section, key, value);
}
if(ret == 0 && write && config_save(config, filename) != 0)
ret = -_configctl_error(PROGNAME, 1);
config_delete(config);
return ret;
}
static int _configctl_do(Config * config, int verbose, char const * section,
char const * key, char const * value)
{
char const * p;
if(value == NULL)
{
if((p = config_get(config, section, key)) == NULL)
return -_configctl_error(PROGNAME, 1);
_configctl_print(verbose, section, key, p);
}
else
{
if(config_set(config, section, key, value) != 0)
return -_configctl_error(PROGNAME, 1);
_configctl_print(verbose, section, key, value);
}
return 0;
}
/* configctl_list */
static void _list_foreach(Config const * config, String const * section,
void * data);
static void _list_foreach_section(Config const * config, String const * section,
String const * variable, String const * value, void * data);
static int _configctl_list(char const * filename)
{
Config * config;
if((config = config_new()) == NULL)
return -_configctl_error(PROGNAME, 1);
if(config_load(config, filename) != 0)
{
config_delete(config);
return -_configctl_error(PROGNAME, 1);
}
config_foreach(config, _list_foreach, NULL);
config_delete(config);
return 0;
}
static void _list_foreach(Config const * config, String const * section,
void * data)
{
(void) data;
config_foreach_section(config, section, _list_foreach_section, NULL);
}
static void _list_foreach_section(Config const * config, String const * section,
String const * variable, String const * value, void * data)
{
(void) config;
(void) data;
_configctl_print(1, section, variable, value);
}
/* configctl_print */
static void _configctl_print(int verbose, char const * section,
char const * variable, char const * value)
{
if(verbose < 0)
return;
printf("%s%s%s%s%s\n", (verbose > 0 && section != NULL) ? section : "",
(verbose > 0 && section != NULL && section[0] != '\0')
? "." : "",
(verbose > 0) ? variable : "",
(verbose > 0) ? "=" : "",
(value != NULL) ? value : "");
}
/* configctl_error */
static int _configctl_error(char const * progname, int ret)
{
error_print(progname);
return ret;
}
/* usage */
static int _usage(void)
{
fputs("Usage: " PROGNAME " -f filename -a\n"
" " PROGNAME " -f filename [-qv] [section.]key...\n"
" " PROGNAME " -w -f filename [-qv] [section.]key[=value]...\n"
" -a\tList every key of every section available\n"
" -f\tFilename to parse or update\n"
" -q\tQuiet mode\n"
" -v\tVerbose mode\n"
" -w\tSet and save values\n", stderr);
return 1;
}
/* public */
/* functions */
/* main */
int main(int argc, char * argv[])
{
int o;
int list = 0;
int verbose = 0;
int write = 0;
char const * filename = NULL;
while((o = getopt(argc, argv, "af:qvw")) != -1)
switch(o)
{
case 'a':
list = 1;
break;
case 'f':
filename = optarg;
break;
case 'q':
verbose = -1;
break;
case 'v':
verbose = 1;
break;
case 'w':
write = 1;
break;
default:
return _usage();
}
if(list)
{
if(verbose != 0 || write != 0 || filename == NULL
|| optind != argc)
return _usage();
return _configctl_list(filename) ? 0 : 2;
}
if(filename == NULL || optind == argc)
return _usage();
return (_configctl(verbose, write, filename, argc - optind,
&argv[optind]) == 0) ? 0 : 2;
}