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/*
LibRCC - rcc external is an application helper which is intended to execute
in a separate process code accessing glib library. This is necessary to be
able use translation services in RusXMMS patch. XMMS is dependent on Glib v.1
and libtranslate utilized to provide translation uses Glib v.2. If both
libraries are linked, the version conflict causes segmentation errors.
Copyright (C) 2005-2008 Suren A. Chilingaryan <csa@dside.dyndns.org>
This library is free software; you can redistribute it and/or modify it
under the terms of the GNU Lesser General Public License version 2.1 or later
as published by the Free Software Foundation.
This library 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 Lesser General Public License
for more details.
You should have received a copy of the GNU Lesser 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 <errno.h>
#include "../config.h"
#ifdef HAVE_UNISTD_H
# include <unistd.h>
#endif /* HAVE_UNISTD_H */
#ifdef HAVE_PWD_H
# include <pwd.h>
#endif /* HAVE_PWD_H */
#ifdef HAVE_SYS_TYPES_H
# include <sys/types.h>
#endif /* HAVE_SYS_TYPES_H */
#ifdef HAVE_SYS_SOCKET_H
# include <sys/socket.h>
#endif /* HAVE_SYS_SOCKET_H */
#ifdef HAVE_SYS_STAT_H
# include <sys/stat.h>
#endif /* HAVE_SYS_STAT_H */
#ifdef HAVE_SYS_UN_H
# include <sys/un.h>
#endif /* HAVE_SYS_UN_H */
#ifdef HAVE_SYS_TIME_H
# include <sys/time.h>
#endif /* JAVE_SYS_TIME_H */
#ifdef HAVE_SIGNAL_H
# include <signal.h>
#endif /* HAVE_SIGNAL_H */
#include <glib.h>
#include "../src/rcchome.h"
#include "../src/rccexternal.h"
#include "rcclibtranslate.h"
#define RCC_EXIT_CHECK_TIMEOUT 10 /* seconds */
char rcc_external_offline = 0;
int main() {
#ifdef HAVE_SIGNAL_H
struct sigaction act;
#endif /* HAVE_PWD_H */
int err;
struct timeval tv;
fd_set fdcon;
int s, sd;
char addr[376];
struct sockaddr_un mysock, clisock;
socklen_t socksize;
pid_t parentpid;
pid_t mypid;
unsigned char loopflag = 1;
rcc_external_info info;
rcc_external_option option;
unsigned long option_value_long;
ssize_t readed;
unsigned char cmd;
parentpid = getppid();
mypid = getpid();
rccHomeSet();
rccLibTranslateInit(rcc_home_dir);
sprintf(addr,"%s/.rcc/comm/",rcc_home_dir);
mkdir(addr, 00700);
sprintf(addr,"%s/.rcc/comm/%lu.sock", rcc_home_dir, (unsigned long)mypid);
s = socket(PF_UNIX, SOCK_STREAM, 0);
if (!s) return -1;
memset(&mysock, 0, sizeof(mysock));
mysock.sun_family=AF_UNIX;
strncpy(mysock.sun_path,addr,sizeof(mysock.sun_path));
mysock.sun_path[sizeof(mysock.sun_path)-1]=0;
unlink(addr);
if (bind(s,(struct sockaddr*)&mysock,sizeof(mysock))==-1) return -1;
if (listen(s,1)<0) {
unlink(addr);
return -1;
}
#ifdef HAVE_SIGNAL_H
act.sa_handler = SIG_IGN;
sigemptyset(&act.sa_mask);
act.sa_flags = 0;
sigaction(SIGPIPE,&act,NULL);
sigaction(SIGINT,&act,NULL);
#endif /* HAVE_SIGNAL_H */
while (loopflag) {
tv.tv_sec = RCC_EXIT_CHECK_TIMEOUT;
tv.tv_usec = 0;
FD_ZERO(&fdcon);
FD_SET(s, &fdcon);
err = select(s+1, &fdcon, NULL, NULL, &tv);
if (err<=0) {
if (getppid() != parentpid) break;
continue;
}
sd = accept(s,(struct sockaddr*)&clisock,&socksize);
if (sd < 0) continue;
readed = recv(sd,&cmd,1,0);
if (readed<=0) {
close(sd);
continue;
}
switch (cmd) {
case RCC_EXTERNAL_MODULE_CONTROL:
loopflag = 0;
break;
case RCC_EXTERNAL_MODULE_OPTIONS:
readed = recv(sd,&option,sizeof(rcc_external_option),0);
if (readed < sizeof(rcc_external_option)) break;
switch(option) {
case RCC_EXTERNAL_OPTION_OFFLINE:
readed = recv (sd, &option_value_long, sizeof(unsigned long), 0);
if (readed < sizeof(unsigned long)) break;
puts("got an offline option");
rcc_external_offline = option_value_long?1:0;
break;
default:
break;
}
break;
case RCC_EXTERNAL_MODULE_LIBRTRANSLATE:
info = (rcc_external_info)malloc(sizeof(rcc_external_info_s));
if (info) info->s = sd;
else break;
if (g_thread_create(rccLibTranslate, info, FALSE, NULL)) continue;
break;
}
close(sd);
}
close(s);
unlink(addr);
rccLibTranslateFree();
rccHomeFree();
return 0;
}
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