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main.c
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/*
* MOC - music on console
* Copyright (C) 2004-2005 Damian Pietras <[email protected]>
*
* 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.
*
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include <string.h>
#include <ctype.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/time.h>
#include <sys/socket.h>
#include <sys/un.h>
#include <sys/utsname.h>
#include <unistd.h>
#include <signal.h>
#include <errno.h>
#include <time.h>
#include <locale.h>
#include <assert.h>
#include <popt.h>
#include "common.h"
#include "server.h"
#include "interface.h"
#include "options.h"
#include "protocol.h"
#include "log.h"
#include "decoder.h"
#include "lists.h"
#include "files.h"
#include "rcc.h"
static int mocp_argc;
static const char **mocp_argv;
static int popt_next_val = 1;
static char *render_popt_command_line ();
/* List of MOC-specific environment variables. */
static struct {
const char *name;
const char *desc;
} environment_variables[] = {
{"MOCP_OPTS", "Additional command line options"},
{"MOCP_POPTRC", "List of POPT configuration files"}
};
struct parameters
{
char *config_file;
int no_config_file;
int debug;
int only_server;
int foreground;
int append;
int enqueue;
int clear;
int play;
int allow_iface;
int stop;
int exit;
int pause;
int unpause;
int next;
int previous;
int get_file_info;
int toggle_pause;
int playit;
int seek_by;
char jump_type;
int jump_to;
char *formatted_info_param;
int get_formatted_info;
char *adj_volume;
char *toggle;
char *on;
char *off;
};
/* Connect to the server, return fd of the socket or -1 on error. */
static int server_connect ()
{
struct sockaddr_un sock_name;
int sock;
/* Create a socket.
* For reasons why AF_UNIX is the correct constant to use in both
* cases, see the commentary the SVN log for commit r2833. */
if ((sock = socket (AF_UNIX, SOCK_STREAM, 0)) == -1)
return -1;
sock_name.sun_family = AF_UNIX;
strcpy (sock_name.sun_path, socket_name());
if (connect(sock, (struct sockaddr *)&sock_name,
SUN_LEN(&sock_name)) == -1) {
close (sock);
return -1;
}
return sock;
}
/* Ping the server.
* Return 1 if the server responds with EV_PONG, otherwise 0. */
static int ping_server (int sock)
{
int event;
send_int(sock, CMD_PING); /* ignore errors - the server could have
already closed the connection and sent
EV_BUSY */
if (!get_int(sock, &event))
fatal ("Error when receiving pong response!");
return event == EV_PONG ? 1 : 0;
}
/* Check if a directory ./.moc exists and create if needed. */
static void check_moc_dir ()
{
char *dir_name = create_file_name ("");
struct stat file_stat;
/* strip trailing slash */
dir_name[strlen(dir_name)-1] = 0;
if (stat (dir_name, &file_stat) == -1) {
if (errno != ENOENT)
fatal ("Error trying to check for "CONFIG_DIR" directory: %s",
xstrerror (errno));
if (mkdir (dir_name, 0700) == -1)
fatal ("Can't create directory %s: %s",
dir_name, xstrerror (errno));
}
else {
if (!S_ISDIR(file_stat.st_mode) || access (dir_name, W_OK))
fatal ("%s is not a writable directory!", dir_name);
}
}
/* Run client and the server if needed. */
static void start_moc (const struct parameters *params, lists_t_strs *args)
{
int server_sock;
if (params->foreground) {
set_me_server ();
server_init (params->debug, params->foreground);
server_loop ();
return;
}
server_sock = server_connect ();
if (server_sock != -1 && params->only_server)
fatal ("Server is already running!");
if (server_sock == -1) {
int i = 0;
int notify_pipe[2];
ssize_t rc;
printf ("Running the server...\n");
/* To notify the client that the server socket is ready */
if (pipe(notify_pipe))
fatal ("pipe() failed: %s", xstrerror (errno));
switch (fork()) {
case 0: /* child - start server */
set_me_server ();
server_init (params->debug, params->foreground);
rc = write (notify_pipe[1], &i, sizeof(i));
if (rc < 0)
fatal ("write() to notify pipe failed: %s", xstrerror (errno));
close (notify_pipe[0]);
close (notify_pipe[1]);
server_loop ();
options_free ();
decoder_cleanup ();
io_cleanup ();
files_cleanup ();
rcc_cleanup ();
common_cleanup ();
exit (EXIT_SUCCESS);
case -1:
fatal ("fork() failed: %s", xstrerror (errno));
default:
close (notify_pipe[1]);
if (read(notify_pipe[0], &i, sizeof(i)) != sizeof(i))
fatal ("Server exited!");
close (notify_pipe[0]);
server_sock = server_connect ();
if (server_sock == -1) {
perror ("server_connect()");
fatal ("Can't connect to the server!");
}
}
}
if (params->only_server)
send_int (server_sock, CMD_DISCONNECT);
else {
xsignal (SIGPIPE, SIG_IGN);
if (!ping_server (server_sock))
fatal ("Can't connect to the server!");
init_interface (server_sock, params->debug, args);
interface_loop ();
interface_end ();
}
close (server_sock);
}
/* Send commands requested in params to the server. */
static void server_command (struct parameters *params, lists_t_strs *args)
{
int sock;
if ((sock = server_connect()) == -1)
fatal ("The server is not running!");
xsignal (SIGPIPE, SIG_IGN);
if (!ping_server (sock))
fatal ("Can't connect to the server!");
if (params->playit)
interface_cmdline_playit (sock, args);
if (params->clear)
interface_cmdline_clear_plist (sock);
if (params->append)
interface_cmdline_append (sock, args);
if (params->enqueue)
interface_cmdline_enqueue (sock, args);
if (params->play)
interface_cmdline_play_first (sock);
if (params->get_file_info)
interface_cmdline_file_info (sock);
if (params->seek_by)
interface_cmdline_seek_by (sock, params->seek_by);
if (params->jump_type=='%')
interface_cmdline_jump_to_percent (sock,params->jump_to);
if (params->jump_type=='s')
interface_cmdline_jump_to (sock,params->jump_to);
if (params->get_formatted_info)
interface_cmdline_formatted_info (sock, params->formatted_info_param);
if (params->adj_volume)
interface_cmdline_adj_volume (sock, params->adj_volume);
if (params->toggle)
interface_cmdline_set (sock, params->toggle, 2);
if (params->on)
interface_cmdline_set (sock, params->on, 1);
if (params->off)
interface_cmdline_set (sock, params->off, 0);
if (params->exit) {
if (!send_int(sock, CMD_QUIT))
fatal ("Can't send command!");
}
else if (params->stop) {
if (!send_int(sock, CMD_STOP) || !send_int(sock, CMD_DISCONNECT))
fatal ("Can't send commands!");
}
else if (params->pause) {
if (!send_int(sock, CMD_PAUSE) || !send_int(sock, CMD_DISCONNECT))
fatal ("Can't send commands!");
}
else if (params->next) {
if (!send_int(sock, CMD_NEXT) || !send_int(sock, CMD_DISCONNECT))
fatal ("Can't send commands!");
}
else if (params->previous) {
if (!send_int(sock, CMD_PREV) || !send_int(sock, CMD_DISCONNECT))
fatal ("Can't send commands!");
}
else if (params->unpause) {
if (!send_int(sock, CMD_UNPAUSE) || !send_int(sock, CMD_DISCONNECT))
fatal ("Can't send commands!");
}
else if (params->toggle_pause) {
int state, ev, cmd = -1;
if (!send_int(sock, CMD_GET_STATE))
fatal ("Can't send commands!");
if (!get_int(sock, &ev) || ev != EV_DATA || !get_int(sock, &state))
fatal ("Can't get data from the server!");
if (state == STATE_PAUSE)
cmd = CMD_UNPAUSE;
else if (state == STATE_PLAY)
cmd = CMD_PAUSE;
if (cmd != -1 && !send_int(sock, cmd))
fatal ("Can't send commands!");
if (!send_int(sock, CMD_DISCONNECT))
fatal ("Can't send commands!");
}
close (sock);
}
static void show_version ()
{
int rc;
struct utsname uts;
putchar ('\n');
printf (" This is : %s\n", PACKAGE_NAME);
printf (" Version : %s\n", PACKAGE_VERSION);
#ifdef PACKAGE_REVISION
printf (" Revision : %s\n", PACKAGE_REVISION);
#endif
/* Show build time */
#ifdef __DATE__
printf (" Built : %s", __DATE__);
# ifdef __TIME__
printf (" %s", __TIME__);
# endif
putchar ('\n');
#endif
/* Show compiled-in components */
printf (" Compiled with :");
#ifdef HAVE_OSS
printf (" OSS");
#endif
#ifdef HAVE_SNDIO
printf (" SNDIO");
#endif
#ifdef HAVE_ALSA
printf (" ALSA");
#endif
#ifdef HAVE_JACK
printf (" JACK");
#endif
#ifndef NDEBUG
printf (" DEBUG");
#endif
#ifdef HAVE_CURL
printf (" Network streams");
#endif
#ifdef HAVE_SAMPLERATE
printf (" resample");
#endif
putchar ('\n');
rc = uname (&uts);
if (rc == 0)
printf (" Running on : %s %s %s\n", uts.sysname, uts.release,
uts.machine);
printf (" Author : Damian Pietras\n");
printf (" Homepage : %s\n", PACKAGE_URL);
printf (" E-Mail : %s\n", PACKAGE_BUGREPORT);
printf (" Copyright : (C) 2003-2016 Damian Pietras and others\n");
printf (" License : GNU General Public License, version 2 or later\n");
putchar ('\n');
}
/* Show program banner. */
static void show_banner ()
{
printf ("%s (version %s", PACKAGE_NAME, PACKAGE_VERSION);
#ifdef PACKAGE_REVISION
printf (", revision %s", PACKAGE_REVISION);
#endif
printf (")\n");
}
static const char mocp_summary[] = "[OPTIONS] [FILE|DIR ...]";
/* Show program usage. */
static void show_usage (poptContext ctx)
{
show_banner ();
poptSetOtherOptionHelp (ctx, mocp_summary);
poptPrintUsage (ctx, stdout, 0);
}
/* Show program help. */
static void show_help (poptContext ctx)
{
size_t ix;
show_banner ();
poptSetOtherOptionHelp (ctx, mocp_summary);
poptPrintHelp (ctx, stdout, 0);
printf ("\nEnvironment variables:\n\n");
for (ix = 0; ix < ARRAY_SIZE(environment_variables); ix += 1)
printf (" %-34s%s\n", environment_variables[ix].name,
environment_variables[ix].desc);
printf ("\n");
}
/* Show POPT-interpreted command line arguments. */
static void show_args ()
{
if (mocp_argc > 0) {
char *str;
str = getenv ("MOCP_POPTRC");
if (str)
printf ("MOCP_POPTRC='%s' ", str);
str = getenv ("MOCP_OPTS");
if (str)
printf ("MOCP_OPTS='%s' ", str);
str = render_popt_command_line ();
printf ("%s\n", str);
free (str);
}
}
/* Disambiguate the user's request. */
static void show_misc_cb (poptContext ctx,
enum poptCallbackReason unused1 ATTR_UNUSED,
const struct poptOption *opt,
const char *unused2 ATTR_UNUSED,
void *unused3 ATTR_UNUSED)
{
switch (opt->shortName) {
case 'V':
show_version ();
break;
case 'h':
show_help (ctx);
break;
case 0:
if (!strcmp (opt->longName, "echo-args"))
show_args ();
else
if (!strcmp (opt->longName, "usage"))
show_usage (ctx);
break;
}
exit (EXIT_SUCCESS);
}
enum {
CL_HANDLED = 0,
CL_NOIFACE,
CL_SDRIVER,
CL_MUSICDIR,
CL_THEME,
CL_SETOPTION,
CL_MOCDIR,
CL_SYNCPL,
CL_NOSYNC,
CL_ASCII,
CL_JUMP,
CL_GETINFO
};
static struct parameters params;
static struct poptOption general_opts[] = {
#ifndef NDEBUG
{"debug", 'D', POPT_ARG_NONE, ¶ms.debug, CL_HANDLED,
"Turn on logging to a file", NULL},
#endif
{"moc-dir", 'M', POPT_ARG_STRING, NULL, CL_MOCDIR,
"Use the specified MOC directory instead of the default", "DIR"},
{"music-dir", 'm', POPT_ARG_NONE, NULL, CL_MUSICDIR,
"Start in MusicDir", NULL},
{"config", 'C', POPT_ARG_STRING, ¶ms.config_file, CL_HANDLED,
"Use the specified config file instead of the default"
" (conflicts with '--no-config')", "FILE"},
{"no-config", 0, POPT_ARG_NONE, ¶ms.no_config_file, CL_HANDLED,
"Use program defaults rather than any config file"
" (conflicts with '--config')", NULL},
{"set-option", 'O', POPT_ARG_STRING, NULL, CL_SETOPTION,
"Override the configuration option NAME with VALUE", "'NAME=VALUE'"},
{"foreground", 'F', POPT_ARG_NONE, ¶ms.foreground, CL_HANDLED,
"Run the server in foreground (logging to stdout)", NULL},
{"server", 'S', POPT_ARG_NONE, ¶ms.only_server, CL_HANDLED,
"Only run the server", NULL},
{"sound-driver", 'R', POPT_ARG_STRING, NULL, CL_SDRIVER,
"Use the first valid sound driver", "DRIVERS"},
{"ascii", 'A', POPT_ARG_NONE, NULL, CL_ASCII,
"Use ASCII characters to draw lines", NULL},
{"theme", 'T', POPT_ARG_STRING, NULL, CL_THEME,
"Use the selected theme file (read from ~/.moc/themes if the path is not absolute)", "FILE"},
{"sync", 'y', POPT_ARG_NONE, NULL, CL_SYNCPL,
"Synchronize the playlist with other clients", NULL},
{"nosync", 'n', POPT_ARG_NONE, NULL, CL_NOSYNC,
"Don't synchronize the playlist with other clients", NULL},
POPT_TABLEEND
};
static struct poptOption server_opts[] = {
{"pause", 'P', POPT_ARG_NONE, ¶ms.pause, CL_NOIFACE,
"Pause", NULL},
{"unpause", 'U', POPT_ARG_NONE, ¶ms.unpause, CL_NOIFACE,
"Unpause", NULL},
{"toggle-pause", 'G', POPT_ARG_NONE, ¶ms.toggle_pause, CL_NOIFACE,
"Toggle between playing and paused", NULL},
{"stop", 's', POPT_ARG_NONE, ¶ms.stop, CL_NOIFACE,
"Stop playing", NULL},
{"next", 'f', POPT_ARG_NONE, ¶ms.next, CL_NOIFACE,
"Play the next song", NULL},
{"previous", 'r', POPT_ARG_NONE, ¶ms.previous, CL_NOIFACE,
"Play the previous song", NULL},
{"seek", 'k', POPT_ARG_INT, ¶ms.seek_by, CL_NOIFACE,
"Seek by N seconds (can be negative)", "N"},
{"jump", 'j', POPT_ARG_STRING, NULL, CL_JUMP,
"Jump to some position in the current track", "N{%,s}"},
{"volume", 'v', POPT_ARG_STRING, ¶ms.adj_volume, CL_NOIFACE,
"Adjust the PCM volume", "[+,-]LEVEL"},
{"exit", 'x', POPT_ARG_NONE, ¶ms.exit, CL_NOIFACE,
"Shutdown the server", NULL},
{"append", 'a', POPT_ARG_NONE, ¶ms.append, CL_NOIFACE,
"Append the files/directories/playlists passed in "
"the command line to playlist", NULL},
{"recursively", 'e', POPT_ARG_NONE, ¶ms.append, CL_NOIFACE,
"Alias for --append", NULL},
{"enqueue", 'q', POPT_ARG_NONE, ¶ms.enqueue, CL_NOIFACE,
"Add the files given on command line to the queue", NULL},
{"clear", 'c', POPT_ARG_NONE, ¶ms.clear, CL_NOIFACE,
"Clear the playlist", NULL},
{"play", 'p', POPT_ARG_NONE, ¶ms.play, CL_NOIFACE,
"Start playing from the first item on the playlist", NULL},
{"playit", 'l', POPT_ARG_NONE, ¶ms.playit, CL_NOIFACE,
"Play files given on command line without modifying the playlist", NULL},
{"toggle", 't', POPT_ARG_STRING, ¶ms.toggle, CL_NOIFACE,
"Toggle a control (shuffle, autonext, repeat)", "CONTROL"},
{"on", 'o', POPT_ARG_STRING, ¶ms.on, CL_NOIFACE,
"Turn on a control (shuffle, autonext, repeat)", "CONTROL"},
{"off", 'u', POPT_ARG_STRING, ¶ms.off, CL_NOIFACE,
"Turn off a control (shuffle, autonext, repeat)", "CONTROL"},
{"info", 'i', POPT_ARG_NONE, ¶ms.get_file_info, CL_NOIFACE,
"Print information about the file currently playing", NULL},
{"format", 'Q', POPT_ARG_STRING, ¶ms.formatted_info_param, CL_GETINFO,
"Print formatted information about the file currently playing", "FORMAT"},
POPT_TABLEEND
};
static struct poptOption misc_opts[] = {
{NULL, 0, POPT_ARG_CALLBACK,
(void *) (uintptr_t) show_misc_cb, 0, NULL, NULL},
{"version", 'V', POPT_ARG_NONE, NULL, 0,
"Print version information", NULL},
{"echo-args", 0, POPT_ARG_NONE, NULL, 0,
"Print POPT-interpreted arguments", NULL},
{"usage", 0, POPT_ARG_NONE, NULL, 0,
"Print brief usage", NULL},
{"help", 'h', POPT_ARG_NONE, NULL, 0,
"Print extended usage", NULL},
POPT_TABLEEND
};
static struct poptOption mocp_opts[] = {
{NULL, 0, POPT_ARG_INCLUDE_TABLE, general_opts, 0, "General options:", NULL},
{NULL, 0, POPT_ARG_INCLUDE_TABLE, server_opts, 0, "Server commands:", NULL},
{NULL, 0, POPT_ARG_INCLUDE_TABLE, misc_opts, 0, "Miscellaneous options:", NULL},
POPT_AUTOALIAS
POPT_TABLEEND
};
/* Read the POPT configuration files as given in MOCP_POPTRC. */
static void read_mocp_poptrc (poptContext ctx, const char *env_poptrc)
{
int ix, rc, count;
lists_t_strs *files;
files = lists_strs_new (4);
count = lists_strs_split (files, env_poptrc, ":");
for (ix = 0; ix < count; ix += 1) {
const char *fn;
fn = lists_strs_at (files, ix);
if (!strlen (fn))
continue;
if (!is_secure (fn))
fatal ("POPT config file is not secure: %s", fn);
rc = poptReadConfigFile (ctx, fn);
if (rc < 0)
fatal ("Error reading POPT config file '%s': %s",
fn, poptStrerror (rc));
}
lists_strs_free (files);
}
/* Check that the ~/.popt file is secure. */
static void check_popt_secure ()
{
int len;
const char *home, dot_popt[] = ".popt";
char *home_popt;
home = get_home ();
len = strlen (home) + strlen (dot_popt) + 2;
home_popt = xcalloc (len, sizeof (char));
snprintf (home_popt, len, "%s/%s", home, dot_popt);
if (!is_secure (home_popt))
fatal ("POPT config file is not secure: %s", home_popt);
free (home_popt);
}
/* Read the default POPT configuration file. */
static void read_default_poptrc (poptContext ctx)
{
int rc;
check_popt_secure ();
rc = poptReadDefaultConfig (ctx, 0);
if (rc == POPT_ERROR_ERRNO) {
int saved_errno = errno;
fprintf (stderr, "\n"
"WARNING: The following fatal error message may be bogus!\n"
" If you have an empty /etc/popt.d directory, try\n"
" adding an empty file to it. If that does not fix\n"
" the problem then you have a genuine error.\n");
errno = saved_errno;
}
if (rc != 0)
fatal ("Error reading default POPT config file: %s",
poptStrerror (rc));
}
/* Read the POPT configuration files(s). */
static void read_popt_config (poptContext ctx)
{
const char *env_poptrc;
env_poptrc = getenv ("MOCP_POPTRC");
if (env_poptrc)
read_mocp_poptrc (ctx, env_poptrc);
else
read_default_poptrc (ctx);
}
/* Prepend MOCP_OPTS to the command line. */
static void prepend_mocp_opts (poptContext ctx)
{
int rc;
const char *env_opts;
env_opts = getenv ("MOCP_OPTS");
if (env_opts && strlen (env_opts)) {
int env_argc;
const char **env_argv;
rc = poptParseArgvString (env_opts, &env_argc, &env_argv);
if (rc < 0)
fatal ("Error parsing MOCP_OPTS: %s", poptStrerror (rc));
rc = poptStuffArgs (ctx, env_argv);
if (rc < 0)
fatal ("Error prepending MOCP_OPTS: %s", poptStrerror (rc));
free (env_argv);
}
}
static const struct poptOption specials[] = {POPT_AUTOHELP
POPT_AUTOALIAS
POPT_TABLEEND};
/* Return true iff 'opt' is a POPT AutoHelp option. */
static inline bool is_autohelp (const struct poptOption *opt)
{
const struct poptOption *autohelp = &specials[0];
return opt->argInfo == autohelp->argInfo && opt->arg == autohelp->arg;
}
/* Return true iff 'opt' is a POPT AutoAlias option. */
static inline bool is_autoalias (const struct poptOption *opt)
{
const struct poptOption *autoalias = &specials[1];
return opt->argInfo == autoalias->argInfo && opt->arg == autoalias->arg;
}
/* Return true iff 'opt' is the POPT end-of-table marker. */
static inline bool is_tableend (const struct poptOption *opt)
{
const struct poptOption *tableend = &specials[2];
return opt->longName == tableend->longName &&
opt->shortName == tableend->shortName &&
opt->arg == tableend->arg;
}
/* Return a copy of the POPT option table structure which is suitable
* for rendering the POPT expansions of the command line. */
struct poptOption *clone_popt_options (struct poptOption *opts)
{
size_t tally, ix, iy = 0;
struct poptOption *result;
assert (opts);
for (tally = 1; !is_tableend (&opts[tally - 1]); tally += 1);
result = xcalloc (tally, sizeof (struct poptOption));
for (ix = 0; ix < tally; ix += 1) {
if (opts[ix].argInfo == POPT_ARG_CALLBACK)
continue;
if (is_autohelp (&opts[ix]))
continue;
if (is_autoalias (&opts[ix]))
continue;
memcpy (&result[iy], &opts[ix], sizeof (struct poptOption));
if (is_tableend (&opts[ix]))
continue;
if (opts[ix].argInfo == POPT_ARG_INCLUDE_TABLE) {
result[iy++].arg = clone_popt_options (opts[ix].arg);
continue;
}
switch (result[iy].argInfo) {
case POPT_ARG_STRING:
case POPT_ARG_INT:
case POPT_ARG_LONG:
case POPT_ARG_FLOAT:
case POPT_ARG_DOUBLE:
result[iy].argInfo = POPT_ARG_STRING;
break;
case POPT_ARG_VAL:
result[iy].argInfo = POPT_ARG_NONE;
break;
case POPT_ARG_NONE:
break;
default:
fatal ("Unknown POPT option table argInfo type: %d",
result[iy].argInfo);
}
result[iy].arg = NULL;
result[iy++].val = popt_next_val++;
}
return result;
}
/* Free a copied POPT option table structure. */
void free_popt_clone (struct poptOption *opts)
{
int ix;
assert (opts);
for (ix = 0; !is_tableend (&opts[ix]); ix += 1) {
if (opts[ix].argInfo == POPT_ARG_INCLUDE_TABLE)
free_popt_clone (opts[ix].arg);
}
free (opts);
}
/* Return a pointer to the copied POPT option table entry for which the
* 'val' field matches 'wanted'. */
struct poptOption *find_popt_option (struct poptOption *opts, int wanted)
{
assert (opts);
assert (LIMIT(wanted, popt_next_val));
for (size_t ix = 0; !is_tableend (&opts[ix]); ix += 1) {
struct poptOption *result;
assert (opts[ix].argInfo != POPT_ARG_CALLBACK);
if (opts[ix].val == wanted)
return &opts[ix];
switch (opts[ix].argInfo) {
case POPT_ARG_INCLUDE_TABLE:
result = find_popt_option (opts[ix].arg, wanted);
if (result)
return result;
break;
case POPT_ARG_STRING:
case POPT_ARG_INT:
case POPT_ARG_LONG:
case POPT_ARG_FLOAT:
case POPT_ARG_DOUBLE:
case POPT_ARG_VAL:
case POPT_ARG_NONE:
break;
default:
fatal ("Unknown POPT option table argInfo type: %d",
opts[ix].argInfo);
}
}
return NULL;
}
/* Render the command line as interpreted by POPT. */
static char *render_popt_command_line ()
{
int rc;
lists_t_strs *cmdline;
char *result;
const char **rest;
poptContext ctx;
struct poptOption *null_opts;
null_opts = clone_popt_options (mocp_opts);
ctx = poptGetContext ("mocp", mocp_argc, mocp_argv, null_opts,
POPT_CONTEXT_NO_EXEC);
read_popt_config (ctx);
prepend_mocp_opts (ctx);
cmdline = lists_strs_new (mocp_argc * 2);
lists_strs_append (cmdline, mocp_argv[0]);
while (1) {
size_t len;
char *str;
const char *arg;
struct poptOption *opt;
rc = poptGetNextOpt (ctx);
if (rc == -1)
break;
if (rc == POPT_ERROR_BADOPT) {
lists_strs_append (cmdline, poptBadOption (ctx, 0));
continue;
}
opt = find_popt_option (null_opts, rc);
if (!opt) {
result = xstrdup ("Couldn't find option in copied option table!");
goto err;
}
arg = poptGetOptArg (ctx);
if (opt->longName) {
len = strlen (opt->longName) + 3;
if (arg)
len += strlen (arg) + 3;
str = xmalloc (len);
if (arg)
snprintf (str, len, "--%s='%s'", opt->longName, arg);
else
snprintf (str, len, "--%s", opt->longName);
}
else {
len = 3;
if (arg)
len += strlen (arg) + 3;
str = xmalloc (len);
if (arg)
snprintf (str, len, "-%c '%s'", opt->shortName, arg);
else
snprintf (str, len, "-%c", opt->shortName);
}
lists_strs_push (cmdline, str);
free ((void *) arg);
}
rest = poptGetArgs (ctx);
if (rest)
lists_strs_load (cmdline, rest);
result = lists_strs_fmt (cmdline, "%s ");
err:
poptFreeContext (ctx);
free_popt_clone (null_opts);
lists_strs_free (cmdline);
return result;
}
static void override_config_option (const char *arg, lists_t_strs *deferred)
{
int len;
bool append;
char *ptr, *name, *value;
enum option_type type;
assert (arg != NULL);
ptr = strchr (arg, '=');
if (ptr == NULL)
goto error;
/* Allow for list append operator ("+="). */
append = (ptr > arg && *(ptr - 1) == '+');
name = trim (arg, ptr - arg - (append ? 1 : 0));
if (!name || !name[0])
goto error;
type = options_get_type (name);
if (type == OPTION_LIST) {
if (deferred) {
lists_strs_append (deferred, arg);
free (name);
return;
}
}
else if (append)
goto error;
value = trim (ptr + 1, strlen (ptr + 1));
if (!value || !value[0])
goto error;
if (value[0] == '\'' || value[0] == '"') {
len = strlen (value);
if (value[0] != value[len - 1])
goto error;
if (strlen (value) < 2)
goto error;
memmove (value, value + 1, len - 2);
value[len - 2] = 0x00;
}
if (!options_set_pair (name, value, append))
goto error;
options_ignore_config (name);
free (name);
free (value);
return;
error:
fatal ("Malformed override option: %s", arg);
}
static long get_num_param (const char *p,const char ** last)
{
char *e;
long val;
val = strtol (p, &e, 10);
if ((*e&&last==NULL)||e==p)
fatal ("The parameter should be a number!");
if (last)
*last=e;
return val;
}
/* Process the command line options. */
static void process_options (poptContext ctx, lists_t_strs *deferred)
{
int rc;
while ((rc = poptGetNextOpt (ctx)) >= 0) {
const char *jump_type, *arg;
arg = poptGetOptArg (ctx);
switch (rc) {
case CL_SDRIVER:
if (!options_check_list ("SoundDriver", arg))
fatal ("No such sound driver: %s", arg);
options_set_list ("SoundDriver", arg, false);
options_ignore_config ("SoundDriver");
break;
case CL_MUSICDIR:
options_set_bool ("StartInMusicDir", true);
options_ignore_config ("StartInMusicDir");
break;
case CL_NOIFACE:
params.allow_iface = 0;