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/*
* $Id$
*
* (c) 2004 by Kalle Wallin <kaw@linux.se>
*
* 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 2 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, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <glib.h>
#include "config.h"
#include "ncmpc.h"
#include "support.h"
#include "options.h"
#define MAX_LONGOPT_LENGTH 32
typedef struct
{
int shortopt;
char *longopt;
char *argument;
char *descrition;
} arg_opt_t;
typedef void (*option_callback_fn_t) (int c, char *arg);
options_t options;
static arg_opt_t option_table[] = {
{ '?', "help", NULL, "Show this help message" },
{ 'V', "version", NULL, "Display version information" },
{ 'c', "colors", NULL, "Enable colors" },
{ 'C', "no-colors", NULL, "Disable colors" },
{ 'e', "exit", NULL, "Exit on connection errors" },
{ 'p', "port", "PORT", "Connect to server on port [" DEFAULT_PORT_STR "]" },
{ 'h', "host", "HOST", "Connect to server on host [" DEFAULT_HOST "]" },
{ 'P', "password","PASSWORD", "Connect with password" },
{ 'f', "config", "FILE", "Read configuration from file" },
{ 'k', "key-file","FILE", "Read configuration from file" },
#ifdef DEBUG
{ 'D', "debug", NULL, "Enable debug output on stderr" },
#endif
{ 0, NULL, NULL, NULL },
};
static arg_opt_t *
lookup_option(int s, char *l)
{
int i;
i=0;
while( option_table[i].descrition )
{
if( l && strcmp(l, option_table[i].longopt) == 0 )
return &option_table[i];;
if( s && s==option_table[i].shortopt )
return &option_table[i];;
i++;
}
return NULL;
}
static void
display_help(void)
{
int i = 0;
printf("Usage: %s [OPTION]...\n", PACKAGE);
while( option_table[i].descrition )
{
char tmp[MAX_LONGOPT_LENGTH];
if( option_table[i].argument )
g_snprintf(tmp, MAX_LONGOPT_LENGTH, "%s=%s",
option_table[i].longopt,
option_table[i].argument);
else
g_strlcpy(tmp, option_table[i].longopt, 64);
printf(" -%c, --%-20s %s\n",
option_table[i].shortopt,
tmp,
option_table[i].descrition);
i++;
}
}
static void
handle_option(int c, char *arg)
{
switch(c)
{
case '?': /* --help */
display_help();
exit(EXIT_SUCCESS);
case 'V': /* --version */
printf("Version %s\n", VERSION);
exit(EXIT_SUCCESS);
case 'c': /* --colors */
options.enable_colors = TRUE;
break;
case 'C': /* --no-colors */
options.enable_colors = FALSE;
break;
case 'e': /* --exit */
options.reconnect = FALSE;
break;
case 'p': /* --port */
options.port = atoi(arg);
break;
case 'h': /* --host */
if( options.host )
g_free(options.host);
options.host = g_strdup(arg);
break;
case 'P': /* --password */
if( options.password )
g_free(options.password);
options.password = locale_to_utf8(arg);
break;
case 'f': /* --config */
if( options.config_file )
g_free(options.config_file);
options.config_file = g_strdup(arg);
break;
case 'k': /* --key-file */
if( options.key_file )
g_free(options.key_file);
options.key_file = g_strdup(arg);
break;
case 'D': /* --debug */
options.debug = TRUE;
break;
default:
fprintf(stderr,"Unknown Option %c = %s\n", c, arg);
break;
}
}
options_t *
options_get(void)
{
return &options;
}
options_t *
options_parse(int argc, const char *argv[])
{
int i;
arg_opt_t *opt = NULL;
option_callback_fn_t option_cb = handle_option;
i=1;
while( i<argc )
{
char *arg = (char *) argv[i];
size_t len=strlen(arg);
/* check for a long option */
if( g_str_has_prefix(arg, "--") )
{
char *value;
/* retreive a option argument */
if( (value=g_strrstr(arg+2, "=")) )
{
*value = '\0';
value++;
}
/* check if the option exists */
if( (opt=lookup_option(0, arg+2)) == NULL )
{
fprintf(stderr, PACKAGE ": invalid option %s\n", arg);
exit(EXIT_FAILURE);
}
/* abort if we got an argument to the option and dont want one */
if( value && opt->argument==NULL )
{
fprintf(stderr, PACKAGE ": invalid option argument %s=%s\n",
arg, value);
exit(EXIT_FAILURE);
}
/* execute option callback */
if( value || opt->argument==NULL )
{
option_cb (opt->shortopt, value);
opt = NULL;
}
}
/* check for a short option */
else if( len==2 && g_str_has_prefix(arg, "-") )
{
/* check if the option exists */
if( (opt=lookup_option(arg[1], NULL))==NULL )
{
fprintf(stderr, PACKAGE ": invalid option %s\n",arg);
exit(EXIT_FAILURE);
}
/* if no option argument is needed execute callback */
if( opt->argument==NULL )
{
option_cb (opt->shortopt, NULL);
opt = NULL;
}
}
else
{
/* is this a option argument? */
if( opt && opt->argument)
{
option_cb (opt->shortopt, arg);
}
else
{
fprintf(stderr, PACKAGE ": bad argument: %s\n", arg);
exit(EXIT_FAILURE);
}
opt = NULL;
}
i++;
}
return &options;
}
options_t *
options_init( void )
{
const char *value;
char *tmp;
memset(&options, 0, sizeof(options_t));
if( (value=g_getenv(MPD_HOST_ENV)) )
options.host = g_strdup(value);
else
options.host = g_strdup(DEFAULT_HOST);
if( (tmp=g_strstr_len(options.host, strlen(options.host), "@")) )
{
char *oldhost = options.host;
*tmp = '\0';
options.password = locale_to_utf8(oldhost);
options.host = g_strdup(tmp+1);
g_free(oldhost);
}
if( (value=g_getenv(MPD_PORT_ENV)) )
options.port = atoi(value);
else
options.port = DEFAULT_PORT;
options.list_format = NULL;
options.status_format = NULL;
options.xterm_title_format = NULL;
options.reconnect = TRUE;
options.find_wrap = TRUE;
options.wide_cursor = TRUE;
options.audible_bell = TRUE;
return &options;
}
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