4f1100f9d9f0ce2fed50b9f4eea25d5c32d4f647
1 /*
2 * $Id$
3 *
4 * (c) 2004 by Kalle Wallin <kaw@linux.se>
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
18 *
19 */
21 #include <stdio.h>
22 #include <stdlib.h>
23 #include <string.h>
24 #include <ncurses.h>
25 #include <glib.h>
27 #include "config.h"
28 #include "ncmpc.h"
29 #include "support.h"
30 #include "options.h"
31 #include "command.h"
32 #include "conf.h"
34 #define MAX_LONGOPT_LENGTH 32
36 #define ERROR_UNKNOWN_OPTION 0x01
37 #define ERROR_BAD_ARGUMENT 0x02
38 #define ERROR_GOT_ARGUMENT 0x03
39 #define ERROR_MISSING_ARGUMENT 0x04
43 typedef struct
44 {
45 int shortopt;
46 char *longopt;
47 char *argument;
48 char *descrition;
49 } arg_opt_t;
52 typedef void (*option_callback_fn_t) (int c, char *arg);
55 options_t options;
57 static arg_opt_t option_table[] = {
58 { '?', "help", NULL, "Show this help message" },
59 { 'V', "version", NULL, "Display version information" },
60 { 'c', "colors", NULL, "Enable colors" },
61 { 'C', "no-colors", NULL, "Disable colors" },
62 #ifdef HAVE_GETMOUSE
63 { 'm', "mouse", NULL, "Enable mouse" },
64 { 'M', "no-mouse", NULL, "Disable mouse" },
65 #endif
66 { 'e', "exit", NULL, "Exit on connection errors" },
67 { 'p', "port", "PORT", "Connect to server on port [" DEFAULT_PORT_STR "]" },
68 { 'h', "host", "HOST", "Connect to server on host [" DEFAULT_HOST "]" },
69 { 'P', "password","PASSWORD", "Connect with password" },
70 { 'f', "config", "FILE", "Read configuration from file" },
71 { 'k', "key-file","FILE", "Read configuration from file" },
72 #ifdef DEBUG
73 { 'K', "dump-keys", NULL, "Dump key bindings to stdout" },
74 { 'D', "debug", NULL, "Enable debug output on stderr" },
75 #endif
76 { 0, NULL, NULL, NULL },
77 };
79 static arg_opt_t *
80 lookup_option(int s, char *l)
81 {
82 int i;
84 i=0;
85 while( option_table[i].descrition )
86 {
87 if( l && strcmp(l, option_table[i].longopt) == 0 )
88 return &option_table[i];;
89 if( s && s==option_table[i].shortopt )
90 return &option_table[i];;
91 i++;
92 }
93 return NULL;
94 }
96 static void
97 option_error(int error, char *option, char *arg)
98 {
99 switch(error)
100 {
101 case ERROR_UNKNOWN_OPTION:
102 fprintf(stderr, PACKAGE ": invalid option %s\n", option);
103 break;
104 case ERROR_BAD_ARGUMENT:
105 fprintf(stderr, PACKAGE ": bad argument: %s\n", option);
106 break;
107 case ERROR_GOT_ARGUMENT:
108 fprintf(stderr, PACKAGE ": invalid option %s=%s\n", option, arg);
109 break;
110 case ERROR_MISSING_ARGUMENT:
111 fprintf(stderr, PACKAGE ": missing value for %s option\n", option);
112 break;
113 default:
114 fprintf(stderr, PACKAGE ": internal error %d\n", error);
115 break;
116 }
117 exit(EXIT_FAILURE);
118 }
120 static void
121 display_help(void)
122 {
123 int i = 0;
125 printf("Usage: %s [OPTION]...\n", PACKAGE);
126 while( option_table[i].descrition )
127 {
128 char tmp[MAX_LONGOPT_LENGTH];
130 if( option_table[i].argument )
131 g_snprintf(tmp, MAX_LONGOPT_LENGTH, "%s=%s",
132 option_table[i].longopt,
133 option_table[i].argument);
134 else
135 g_strlcpy(tmp, option_table[i].longopt, 64);
137 printf(" -%c, --%-20s %s\n",
138 option_table[i].shortopt,
139 tmp,
140 option_table[i].descrition);
141 i++;
142 }
143 }
145 static void
146 handle_option(int c, char *arg)
147 {
148 D("option callback -%c %s\n", c, arg);
149 switch(c)
150 {
151 case '?': /* --help */
152 display_help();
153 exit(EXIT_SUCCESS);
154 case 'V': /* --version */
155 printf("%s version: %s\n", PACKAGE, VERSION);
156 printf("build options:");
157 #ifdef DEBUG
158 printf(" debug");
159 #endif
160 #ifdef ENABLE_NLS
161 printf(" nls");
162 #endif
163 #ifdef ENABLE_KEYDEF_SCREEN
164 printf(" key-screen");
165 #endif
166 #ifdef ENABLE_CLOCK_SCREEN
167 printf(" clock-screen");
168 #endif
169 printf("\n");
170 exit(EXIT_SUCCESS);
171 case 'c': /* --colors */
172 options.enable_colors = TRUE;
173 break;
174 case 'C': /* --no-colors */
175 options.enable_colors = FALSE;
176 break;
177 case 'm': /* --mouse */
178 options.enable_mouse = TRUE;
179 break;
180 case 'M': /* --no-mouse */
181 options.enable_mouse = FALSE;
182 break;
183 case 'e': /* --exit */
184 options.reconnect = FALSE;
185 break;
186 case 'p': /* --port */
187 options.port = atoi(arg);
188 break;
189 case 'h': /* --host */
190 if( options.host )
191 g_free(options.host);
192 options.host = g_strdup(arg);
193 break;
194 case 'P': /* --password */
195 if( options.password )
196 g_free(options.password);
197 options.password = locale_to_utf8(arg);
198 break;
199 case 'f': /* --config */
200 if( options.config_file )
201 g_free(options.config_file);
202 options.config_file = g_strdup(arg);
203 break;
204 case 'k': /* --key-file */
205 if( options.key_file )
206 g_free(options.key_file);
207 options.key_file = g_strdup(arg);
208 break;
209 #ifdef DEBUG
210 case 'K': /* --dump-keys */
211 read_configuration(&options);
212 write_key_bindings(stdout, KEYDEF_WRITE_ALL | KEYDEF_COMMENT_ALL);
213 exit(EXIT_SUCCESS);
214 break;
215 case 'D': /* --debug */
216 options.debug = TRUE;
217 break;
218 #endif
219 default:
220 fprintf(stderr,"Unknown Option %c = %s\n", c, arg);
221 break;
222 }
223 }
225 options_t *
226 options_get(void)
227 {
228 return &options;
229 }
231 options_t *
232 options_parse(int argc, const char *argv[])
233 {
234 int i;
235 arg_opt_t *opt = NULL;
236 option_callback_fn_t option_cb = handle_option;
238 i=1;
239 while( i<argc )
240 {
241 char *arg = (char *) argv[i];
242 size_t len=strlen(arg);
244 /* check for a long option */
245 if( g_str_has_prefix(arg, "--") )
246 {
247 char *name, *value;
249 /* make shure we got an argument for the previous option */
250 if( opt && opt->argument )
251 option_error(ERROR_MISSING_ARGUMENT, opt->longopt, opt->argument);
253 /* retreive a option argument */
254 if( (value=g_strrstr(arg+2, "=")) )
255 {
256 *value = '\0';
257 name = g_strdup(arg);
258 *value = '=';
259 value++;
260 }
261 else
262 name = g_strdup(arg);
264 /* check if the option exists */
265 if( (opt=lookup_option(0, name+2)) == NULL )
266 option_error(ERROR_UNKNOWN_OPTION, name, NULL);
267 g_free(name);
269 /* abort if we got an argument to the option and dont want one */
270 if( value && opt->argument==NULL )
271 option_error(ERROR_GOT_ARGUMENT, arg, value);
273 /* execute option callback */
274 if( value || opt->argument==NULL )
275 {
276 option_cb (opt->shortopt, value);
277 opt = NULL;
278 }
279 }
280 /* check for short options */
281 else if( len>=2 && g_str_has_prefix(arg, "-") )
282 {
283 int j;
285 for(j=1; j<len; j++)
286 {
287 /* make shure we got an argument for the previous option */
288 if( opt && opt->argument )
289 option_error(ERROR_MISSING_ARGUMENT,
290 opt->longopt, opt->argument);
292 /* check if the option exists */
293 if( (opt=lookup_option(arg[j], NULL))==NULL )
294 option_error(ERROR_UNKNOWN_OPTION, arg, NULL);
296 /* if no option argument is needed execute callback */
297 if( opt->argument==NULL )
298 {
299 option_cb (opt->shortopt, NULL);
300 opt = NULL;
301 }
302 }
303 }
304 else
305 {
306 /* is this a option argument? */
307 if( opt && opt->argument)
308 {
309 option_cb (opt->shortopt, arg);
310 opt = NULL;
311 }
312 else
313 option_error(ERROR_BAD_ARGUMENT, arg, NULL);
314 }
315 i++;
316 }
318 if( opt && opt->argument==NULL)
319 option_cb (opt->shortopt, NULL);
320 else if( opt && opt->argument )
321 option_error(ERROR_MISSING_ARGUMENT, opt->longopt, opt->argument);
323 return &options;
324 }
327 options_t *
328 options_init( void )
329 {
330 const char *value;
331 char *tmp;
333 memset(&options, 0, sizeof(options_t));
335 /* get initial values for host and password from MPD_HOST (enviroment) */
336 if( (value=g_getenv(MPD_HOST_ENV)) )
337 options.host = g_strdup(value);
338 else
339 options.host = g_strdup(DEFAULT_HOST);
340 if( (tmp=g_strstr_len(options.host, strlen(options.host), "@")) )
341 {
342 char *oldhost = options.host;
343 *tmp = '\0';
344 options.password = locale_to_utf8(oldhost);
345 options.host = g_strdup(tmp+1);
346 g_free(oldhost);
347 }
348 /* get initial values for port from MPD_PORT (enviroment) */
349 if( (value=g_getenv(MPD_PORT_ENV)) )
350 options.port = atoi(value);
351 else
352 options.port = DEFAULT_PORT;
354 /* default option values */
355 options.reconnect = TRUE;
356 options.find_wrap = TRUE;
357 options.wide_cursor = TRUE;
358 options.audible_bell = TRUE;
359 options.crossfade_time = DEFAULT_CROSSFADE_TIME;
361 return &options;
362 }