From bcb704366cb5e333a626c18c308c7e0448a8e69f Mon Sep 17 00:00:00 2001
From: toma <toma@283d02a7-25f6-0310-bc7c-ecb5cbfe19da>
Date: Wed, 25 Nov 2009 17:56:58 +0000
Subject: Copy the KDE 3.5 branch to branches/trinity for new KDE 3.5 features.
 BUG:215923

git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdenetwork@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da
---
 lanbrowsing/lisa/strictmain.cpp | 261 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 261 insertions(+)
 create mode 100644 lanbrowsing/lisa/strictmain.cpp

(limited to 'lanbrowsing/lisa/strictmain.cpp')

diff --git a/lanbrowsing/lisa/strictmain.cpp b/lanbrowsing/lisa/strictmain.cpp
new file mode 100644
index 00000000..a948d6df
--- /dev/null
+++ b/lanbrowsing/lisa/strictmain.cpp
@@ -0,0 +1,261 @@
+/*    strictmain.cpp
+ *
+ *    Copyright (c) 1998-2000 Alexander Neundorf
+ *    neundorf@kde.org
+ *
+ *    You may distribute under the terms of the GNU General Public
+ *    License as specified in the COPYING file.
+ *
+ *    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.
+ *
+ */
+
+#include "lisadefines.h"
+#include "netmanager.h"
+
+#include <iostream>
+#include <signal.h>
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+
+// detect linux/glibc for the gnu style --args
+#if defined(__linux__) || defined(__linux) || defined(linux)
+#  include <features.h>
+#  ifdef __GLIBC__
+// only gnu libc has getopt.h... getopt(3) is defined to be in unistd.h
+// by POSIX.2
+#    ifndef _GNU_SOURCE
+#      define _GNU_SOURCE
+#    endif
+#    include <getopt.h>
+#  endif // __GLIBC__
+#  define GNU_GETOPT
+#endif // linux
+
+#ifdef LISA_DEBUG
+#undef LISA_DEBUG
+#endif
+#define LISA_DEBUG 0
+
+#ifdef dcerr
+#undef dcerr
+#endif
+
+#define dcerr if (LISA_DEBUG==1) std::cerr<<"strictmain "
+
+void printVersion()
+{
+   const char * versionInfo=\
+   "\r\nThis is the restricted LAN Information Server resLISa "MYVERSION"\r\n"\
+   "It is free software according the GNU General Public License\r\n"\
+   "Copyright (c) 2000-2003 by Alexander Neundorf\r\n"\
+   "email: neundorf@kde.org\r\n";
+   std::cout<<versionInfo<<std::endl;
+}
+
+void usage()
+{
+   printVersion();
+   const char * usageInfo=\
+      "-v, --version      prints out a short version info\n"\
+      "-u, --unix         deprecated\n"\
+      "-k, --kde1         deprecated\n"\
+      "-K, --kde2         deprecated\n"\
+      "                   reslisa now always looks first for $(HOME)/.reslisarc, then for /etc/reslisarc\"\n"\
+      "-c, --config=FILE  read this and no other configuration file\n"\
+      "-q, --quiet        start quiet without the greeting message\n"\
+      "-h, --help         you are currently reading it ;-)\n";
+      std::cout<<usageInfo<<std::endl;
+//I thought this would be the way to check wether long options are supported...
+//#ifndef _GNU_SOURCE
+//      cout<<"Please note that the long options are not supported on this system"<<endl;
+//#endif
+}
+
+void destruct(int sigNumber)
+{
+   signal(sigNumber,SIG_IGN);
+   std::cout<<"signal caught: "<<sigNumber<<", exiting"<<std::endl;
+   //signal(sigNumber,&destruct);
+   exit(0);
+}
+
+NetManager *manager(0);
+
+void readConfig(int sigNumber)
+{
+   std::cout<<"readConfig(): signal caught: "<<sigNumber<<std::endl;
+   signal(SIGHUP,SIG_IGN);
+   if (manager!=0)
+      manager->readConfig();
+   signal(SIGHUP,&readConfig);
+}
+
+void printState(int sigNumber)
+{
+   std::cout<<"printState(): signal caught: "<<sigNumber<<std::endl;
+   signal(SIGUSR1,SIG_IGN);
+   if (manager!=0)
+      manager->printState();
+   signal(SIGUSR1,&printState);
+}
+
+void setSignalHandler()
+{
+   signal(SIGHUP,&readConfig);
+	signal(SIGUSR1,&printState);
+
+   signal(SIGINT,&destruct);
+	signal(SIGQUIT,&destruct);
+	signal(SIGILL,&destruct);
+	signal(SIGTRAP,&destruct);
+	signal(SIGABRT,&destruct);
+	signal(SIGBUS,&destruct);
+	signal(SIGSEGV,&destruct);
+	signal(SIGUSR2,&destruct);
+	signal(SIGPIPE,&destruct);
+	signal(SIGALRM,&destruct);
+	signal(SIGTERM,&destruct);
+	signal(SIGFPE,&destruct);
+#ifdef SIGPOLL
+   signal(SIGPOLL, &destruct);
+#endif
+#ifdef SIGSYS
+   signal(SIGSYS, &destruct);
+#endif
+#ifdef SIGVTALRM
+   signal(SIGVTALRM, &destruct);
+#endif
+#ifdef SIGXCPU
+   signal(SIGXCPU, &destruct);
+#endif
+#ifdef SIGXFSZ
+   signal(SIGXFSZ, &destruct);
+#endif
+}
+
+#ifdef GNU_GETOPT
+static struct option const long_opts[] =
+{
+  {"version", no_argument, 0, 'v'},
+  {"quiet", no_argument, 0, 'q'},
+  {"unix", no_argument, 0, 'u'},
+  {"kde1", no_argument, 0, 'k'},
+  {"kde2", no_argument, 0, 'K'},
+  {"config", required_argument, 0, 'c'},
+  {"help", no_argument, 0, 'h'},
+  {0, 0, 0, 0}
+};
+#endif
+
+int main(int argc, char** argv)
+{
+   int quiet(0);
+   int c(0);
+   int configStyle(UNIXCONFIGSTYLE);
+   MyString configFile;
+   int portToUse(MYPORT);
+
+//I thought this would be the way to check wether long options are supported...
+#ifdef GNU_GETOPT
+   while ((c=getopt_long(argc, argv, "vqukKc:h", long_opts, 0))!=-1)
+#else
+   while ((c=getopt(argc, argv, "vqukKc:h"))!=-1)
+#endif
+   {
+      switch (c)
+      {
+      case 0:
+         break;
+      case 'v':
+         printVersion();
+         exit(0);
+         break;
+      case 'q':
+         quiet=1;
+         break;
+      case 'u':
+      case 'k':
+      case 'K':
+         std::cerr<<"\a\nThe command line switches -k, -K, -u and \ntheir long versions "\
+            "--kde1, --kde2 and --unix are not supported anymore.\n"\
+            "ResLisa will always first look for $(HOME)/.reslisarc , then for /etc/reslisarc.\n"\
+            "If your lisa configuration file was created using an older version of \n"\
+            "the KDE control center, copy the $(HOME)/.kde/share/config/reslisarc to $(HOME)/.reslisarc.\n"<<std::endl;
+         break;
+
+      case 'c':
+         configFile = optarg;
+         configStyle = EXTRACONFIGSTYLE;
+         break;
+
+      case 'h':
+      default:
+         usage();
+         exit(0);
+         break;
+      }
+   }
+
+   //fork and let the parent exit
+   pid_t pid=fork();
+   if (pid>0)
+   {
+      //this is the parent
+      exit(0);
+   }
+   else if (pid<0)
+   {
+      dcerr<<"could not fork()"<<std::endl;
+      exit(0);
+   }
+   //we will only read/write to/from this socket in the child process
+   int rawSocket=socket(AF_INET,SOCK_RAW,IPPROTO_ICMP);
+   if (rawSocket==-1)
+   {
+      std::cout<<"could not create raw socket, root privileges required"<<std::endl;
+      std::cout<<"take a look at the README for more information"<<std::endl;
+      exit(0);
+   }
+   int bufferSize(60*1024);
+   int on(1);
+   setsockopt(rawSocket, SOL_SOCKET, SO_RCVBUF, (char*)&bufferSize,
+	      sizeof(bufferSize));
+   int result=setsockopt(rawSocket, SOL_SOCKET, SO_BROADCAST, (char*)&on,
+			 sizeof(on));
+   dcerr<<"setsockopt returns "<<result<<std::endl;
+   //dropping root privileges
+   //they will be regained once in the child process
+   //for creating a raw socket
+
+   //now dropping root privileges once and ever
+   setuid(getuid());
+   
+   //according to R. Stevens the following three lines 
+   //make daemons feel good :)
+   setsid();
+   chdir("/");
+   umask(0);
+   
+   dcerr<<"starting, dropped root privileges"<<std::endl;
+   dcerr<<"port: "<<portToUse<<" file: "<<configFile<<std::endl;
+   NetManager netmanager(rawSocket,portToUse,configFile,configStyle,1);
+   manager=&netmanager;
+   dcerr<<"NetManager created"<<std::endl;
+   setSignalHandler();
+
+   netmanager.readConfig();
+   if (netmanager.prepare())
+   {
+      if (!quiet)
+         printVersion();
+      netmanager.run();
+   }
+   dcerr<<"server finished"<<std::endl;
+}
-- 
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