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#include "mpdas.h"
bool running = true;
void got_signal(int)
{
running = false;
}
void onclose()
{
iprintf("%s", "Closing mpdas.");
if(MPD) delete MPD;
if(AudioScrobbler) delete AudioScrobbler;
if(Cache) delete Cache;
}
void setid(const char* username)
{
passwd* userinfo = 0;
if(strlen(username) == 0)
return;
if(getuid() != 0) {
eprintf("%s", "You are not root. Not changing user ..");
return;
}
userinfo = getpwnam(username);
if(!userinfo) {
eprintf("%s", "The user you specified does not exist.");
exit(EXIT_FAILURE);
}
if(setgid(userinfo->pw_gid) == -1 || setuid(userinfo->pw_uid) == -1) {
eprintf("%s %s", "Could not switch to user", username);
exit(EXIT_FAILURE);
}
setenv("HOME", userinfo->pw_dir, 1);
}
void printversion()
{
fprintf(stdout, "mpdas-" VERSION", (C) 2010-2017 Henrik Friedrichsen.\n");
fprintf(stdout, "Global config path is set to \"%s/mpdasrc\"\n", CONFDIR);
}
void printhelp()
{
fprintf(stderr, "\nusage: mpdas [-h] [-v] [-c config]\n");
fprintf(stderr, "\n\th: print this help");
fprintf(stderr, "\n\tv: print program version");
fprintf(stderr, "\n\tc: load specified config file");
fprintf(stderr, "\n");
}
int main(int argc, char* argv[])
{
int i;
char* config = 0;
bool go_daemon = false;
if(argc >= 2) {
for(i = 1; i <= argc-1; i++) {
if(strstr(argv[i], "-h") == argv[i]) {
printversion();
printhelp();
return EXIT_SUCCESS;
}
if(strstr(argv[i], "-v") == argv[i]) {
printversion();
return EXIT_SUCCESS;
}
else if(strstr(argv[i], "-c") == argv[i]) {
if(i >= argc-1) {
fprintf(stderr, "mpdas: config path missing!\n");
printhelp();
return EXIT_FAILURE;
}
config = argv[i+1];
}
else if(strstr(argv[i], "-d") == argv[i]) {
go_daemon = true;
}
}
}
atexit(onclose);
CConfig *cfg = new CConfig(config);
setid(cfg->Get("runas").c_str());
// Load config in home dir as well (if possible)
if(config == 0) {
std::string home = getenv("HOME");
std::string xdgconfig = home + "/.config";
if(getenv("XDG_CONFIG_HOME")) {
xdgconfig = std::string(getenv("XDG_CONFIG_HOME"));
}
std::string path = home + "/.mpdasrc";
std::string xdgpath = xdgconfig + "/mpdasrc";
cfg->LoadConfig(xdgpath);
cfg->LoadConfig(path);
}
if(!cfg->gotNecessaryData()) {
eprintf("%s", "AudioScrobbler username or password not set.");
return EXIT_FAILURE;
}
iprintf("Using %s service URL", cfg->getService() == LastFm ? "Last.fm" : "Libre.fm");
if (go_daemon) {
if (daemon(1, 0)) {
perror("daemon");
return EXIT_FAILURE;
}
}
MPD = new CMPD(cfg);
if(!MPD->isConnected())
return EXIT_FAILURE;
AudioScrobbler = new CAudioScrobbler(cfg);
AudioScrobbler->Handshake();
Cache = new CCache();
Cache->LoadCache();
// catch sigint
struct sigaction sa;
memset(&sa, 0, sizeof(sa));
sa.sa_handler = got_signal;
sigfillset(&sa.sa_mask);
sigaction(SIGINT, &sa, NULL);
while(running) {
MPD->Update();
Cache->WorkCache();
usleep(500000);
}
return EXIT_SUCCESS;
}
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