error reporting, removal of stale files, removed warning

Makefile

@@ -12,7 +12,7 @@ all: nethogs
 
 #CFLAGS=-g -Wall
 CFLAGS=-O2
-OBJS=structs.o packet.o connection.o process.o refresh.o decpcap.o cui.o inode2prog.o
+OBJS=packet.o connection.o process.o refresh.o decpcap.o cui.o inode2prog.o
 .PHONY: tgz
 
 tgz: clean
@@ -33,8 +33,6 @@ nethogs: nethogs.cpp $(OBJS)
 
 refresh.o: refresh.cpp refresh.h nethogs.h
 	$(CXX) $(CFLAGS) -c refresh.cpp
-structs.o: structs.cpp structs.h nethogs.h
-	$(CXX) $(CFLAGS) -c structs.cpp
 process.o: process.cpp process.h nethogs.h
 	$(CXX) $(CFLAGS) -c process.cpp
 packet.o: packet.cpp packet.h nethogs.h

nethogs.cpp

@@ -203,11 +203,22 @@ void quit_cb (int i)
 }
 
 void forceExit(const char *msg)
+{
+	forceExit (msg, NULL);
+}
+
+void forceExit(const char *msg, const char* msg2)
 {
 	if ((!tracemode)&&(!DEBUG)){
 		exit_ui();
 	}
-	std::cerr << msg << std::endl;
+	std::cerr << msg;
+	if (msg2 != NULL)
+	{
+		std::cerr << msg2;
+	}
+	std::cerr << std::endl;
+
         exit(0);
 }
 
@@ -299,7 +310,9 @@ int main (int argc, char** argv)
 	}
 
 	if (devices == NULL)
+	{	
 		devices = new device (strdup("eth0"));
+	}
 
 	if ((!tracemode) && (!DEBUG)){
 		init_ui();

nethogs.h

@@ -48,6 +48,7 @@
 #define PROGNAME_WIDTH 27
 
 void forceExit(const char *msg);
+void forceExit(const char *msg, const char* msg2);
 
 class local_addr {
 public:

packet.cpp

@@ -38,12 +38,12 @@ void getLocal (const char *device, bool tracemode)
 	struct ifreq iFreq;
 	struct sockaddr_in *saddr;
 
-	if((sock=socket(AF_INET, SOCK_PACKET, htons(0x0806)))<0){
+	if((sock=socket(AF_INET, SOCK_RAW, htons(0x0806)))<0){
 		forceExit("creating socket failed while establishing local IP - are you root?");
 	}
 	strcpy(iFreq.ifr_name, device);
 	if(ioctl(sock, SIOCGIFADDR, &iFreq)<0){
-		forceExit("ioctl failed while establishing local IP");
+		forceExit("ioctl failed while establishing local IP for device ", device);
 	}
 	saddr=(struct sockaddr_in*)&iFreq.ifr_addr;
 	local_addrs = new local_addr (saddr->sin_addr.s_addr, local_addrs);