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/*
* (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 "options.h"
#include "config.h"
#include "defaults.h"
#include "charset.h"
#include "command.h"
#include "conf.h"
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <glib.h>
#define MAX_LONGOPT_LENGTH 32
#define ERROR_UNKNOWN_OPTION 0x01
#define ERROR_BAD_ARGUMENT 0x02
#define ERROR_GOT_ARGUMENT 0x03
#define ERROR_MISSING_ARGUMENT 0x04
typedef struct {
int shortopt;
const char *longopt;
const char *argument;
const char *descrition;
} arg_opt_t;
typedef void (*option_callback_fn_t)(int c, const char *arg);
options_t options = {
.port = DEFAULT_PORT,
.crossfade_time = DEFAULT_CROSSFADE_TIME,
.seek_time = 1,
#ifdef ENABLE_LYRICS_SCREEN
.lyrics_timeout = DEFAULT_LYRICS_TIMEOUT,
#endif
.find_wrap = true,
.wide_cursor = true,
.audible_bell = true,
#ifndef NCMPC_MINI
.scroll = DEFAULT_SCROLL,
.welcome_screen_list = true,
#endif
};
static const 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" },
#ifdef HAVE_GETMOUSE
{ 'm', "mouse", NULL, "Enable mouse" },
{ 'M', "no-mouse", NULL, "Disable mouse" },
#endif
{ '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" },
{ 'S', "no-splash", NULL, "Don't show the splash screen" },
#ifndef NDEBUG
{ 'K', "dump-keys", NULL, "Dump key bindings to stdout" },
#endif
};
static const unsigned option_table_size = sizeof(option_table) / sizeof(option_table[0]);
static const arg_opt_t *
lookup_option(int s, char *l)
{
unsigned i;
for (i = 0; i < option_table_size; ++i) {
if (l && strcmp(l, option_table[i].longopt) == 0)
return &option_table[i];;
if (s && s == option_table[i].shortopt)
return &option_table[i];;
}
return NULL;
}
static void
option_error(int error, const char *option, const char *arg)
{
switch (error) {
case ERROR_UNKNOWN_OPTION:
fprintf(stderr, PACKAGE ": invalid option %s\n", option);
break;
case ERROR_BAD_ARGUMENT:
fprintf(stderr, PACKAGE ": bad argument: %s\n", option);
break;
case ERROR_GOT_ARGUMENT:
fprintf(stderr, PACKAGE ": invalid option %s=%s\n", option, arg);
break;
case ERROR_MISSING_ARGUMENT:
fprintf(stderr, PACKAGE ": missing value for %s option\n", option);
break;
default:
fprintf(stderr, PACKAGE ": internal error %d\n", error);
break;
}
exit(EXIT_FAILURE);
}
static void
display_help(void)
{
unsigned i;
printf("Usage: %s [OPTION]...\n", PACKAGE);
for (i = 0; i < option_table_size; ++i) {
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, const char *arg)
{
switch (c) {
case '?': /* --help */
display_help();
exit(EXIT_SUCCESS);
case 'V': /* --version */
puts(PACKAGE " version: " VERSION "\n"
"build options:"
#ifdef NCMPC_MINI
" mini"
#endif
#ifndef NDEBUG
" debug"
#endif
#ifdef ENABLE_WIDE
" wide"
#endif
#ifdef ENABLE_LOCALE
" locale"
#endif
#ifdef ENABLE_NLS
" nls"
#endif
#ifdef ENABLE_COLORS
" colors"
#else
" no-colors"
#endif
#ifdef ENABLE_LIRC
" lirc"
#endif
#ifdef HAVE_GETMOUSE
" getmouse"
#endif
#ifdef ENABLE_ARTIST_SCREEN
" artist-screen"
#endif
#ifdef ENABLE_HELP_SCREEN
" help-screen"
#endif
#ifdef ENABLE_SEARCH_SCREEN
" search-screen"
#endif
#ifdef ENABLE_SONG_SCREEN
" song-screen"
#endif
#ifdef ENABLE_KEYDEF_SCREEN
" key-screen"
#endif
#ifdef ENABLE_LYRICS_SCREEN
" lyrics-screen"
#endif
#ifdef ENABLE_OUTPUTS_SCREEN
" outputs-screen"
#endif
"\n");
exit(EXIT_SUCCESS);
case 'c': /* --colors */
#ifdef ENABLE_COLORS
options.enable_colors = true;
#endif
break;
case 'C': /* --no-colors */
#ifdef ENABLE_COLORS
options.enable_colors = false;
#endif
break;
case 'm': /* --mouse */
#ifdef HAVE_GETMOUSE
options.enable_mouse = true;
#endif
break;
case 'M': /* --no-mouse */
#ifdef HAVE_GETMOUSE
options.enable_mouse = false;
#endif
break;
case 'e': /* --exit */
/* deprecated */
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 'S': /* --key-file */
/* the splash screen was removed */
break;
#ifndef NDEBUG
case 'K': /* --dump-keys */
read_configuration();
write_key_bindings(stdout, KEYDEF_WRITE_ALL | KEYDEF_COMMENT_ALL);
exit(EXIT_SUCCESS);
break;
#endif
default:
fprintf(stderr,"Unknown Option %c = %s\n", c, arg);
break;
}
}
void
options_parse(int argc, const char *argv[])
{
int i;
const arg_opt_t *opt = NULL;
option_callback_fn_t option_cb = handle_option;
i=1;
while (i < argc) {
const char *arg = argv[i];
size_t len = strlen(arg);
/* check for a long option */
if (g_str_has_prefix(arg, "--")) {
char *name, *value;
/* make shure we got an argument for the previous option */
if( opt && opt->argument )
option_error(ERROR_MISSING_ARGUMENT, opt->longopt, opt->argument);
/* retreive a option argument */
if ((value=g_strrstr(arg+2, "="))) {
*value = '\0';
name = g_strdup(arg);
*value = '=';
value++;
} else
name = g_strdup(arg);
/* check if the option exists */
if( (opt=lookup_option(0, name+2)) == NULL )
option_error(ERROR_UNKNOWN_OPTION, name, NULL);
g_free(name);
/* abort if we got an argument to the option and dont want one */
if( value && opt->argument==NULL )
option_error(ERROR_GOT_ARGUMENT, arg, value);
/* execute option callback */
if (value || opt->argument==NULL) {
option_cb (opt->shortopt, value);
opt = NULL;
}
}
/* check for short options */
else if (len>=2 && g_str_has_prefix(arg, "-")) {
size_t j;
for(j=1; j<len; j++) {
/* make shure we got an argument for the previous option */
if (opt && opt->argument)
option_error(ERROR_MISSING_ARGUMENT,
opt->longopt, opt->argument);
/* check if the option exists */
if ((opt=lookup_option(arg[j], NULL)) == NULL)
option_error(ERROR_UNKNOWN_OPTION, arg, NULL);
/* 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);
opt = NULL;
} else
option_error(ERROR_BAD_ARGUMENT, arg, NULL);
}
i++;
}
if (opt && opt->argument == NULL)
option_cb (opt->shortopt, NULL);
else if (opt && opt->argument)
option_error(ERROR_MISSING_ARGUMENT, opt->longopt, opt->argument);
}
void
options_init(void)
{
const char *value;
char *tmp;
/* get initial values for host and password from MPD_HOST (enviroment) */
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);
}
/* get initial values for port from MPD_PORT (enviroment) */
if ((value = g_getenv(MPD_PORT_ENV)))
options.port = atoi(value);
/* default option values */
options.list_format = g_strdup(DEFAULT_LIST_FORMAT);
options.status_format = g_strdup(DEFAULT_STATUS_FORMAT);
options.screen_list = g_strsplit_set(DEFAULT_SCREEN_LIST, " ", 0);
options.timedisplay_type = g_strdup(DEFAULT_TIMEDISPLAY_TYPE);
#ifndef NCMPC_MINI
options.scroll_sep = g_strdup(DEFAULT_SCROLL_SEP);
#endif
}
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