Small fix.

[stg.git] / projects / stargazer / plugins / capture / ether_linux / ether_cap.cpp

diff --git a/projects/stargazer/plugins/capture/ether_linux/ether_cap.cpp b/projects/stargazer/plugins/capture/ether_linux/ether_cap.cpp
index 632c18468f4f670061521f32615f64db8582e375..a97fa8e7d07e5490569f7f9c73e14d6107776717 100644 (file)
--- a/projects/stargazer/plugins/capture/ether_linux/ether_cap.cpp
+++ b/projects/stargazer/plugins/capture/ether_linux/ether_cap.cpp
@@ -56,7 +56,12 @@ $Date: 2009/12/13 13:45:13 $
 //-----------------------------------------------------------------------------
 //-----------------------------------------------------------------------------
 //-----------------------------------------------------------------------------
+namespace
+{
 PLUGIN_CREATOR<ETHER_CAP> ecc;
+}
+
+extern "C" PLUGIN * GetPlugin();
 //-----------------------------------------------------------------------------
 //-----------------------------------------------------------------------------
 //-----------------------------------------------------------------------------
@@ -67,7 +72,7 @@ return ecc.GetPlugin();
 //-----------------------------------------------------------------------------
 //-----------------------------------------------------------------------------
 //-----------------------------------------------------------------------------        
-const std::string ETHER_CAP::GetVersion() const
+std::string ETHER_CAP::GetVersion() const
 {
 return "Ether_cap v.1.2";
 }
@@ -78,7 +83,8 @@ ETHER_CAP::ETHER_CAP()
       nonstop(false),
       isRunning(false),
       capSock(-1),
-      traffCnt(NULL)
+      traffCnt(NULL),
+      logger(GetPluginLogger(GetStgLogger(), "cap_ether"))
 {
 }
 //-----------------------------------------------------------------------------
@@ -96,14 +102,15 @@ if (EthCapOpen() < 0)
 
 nonstop = true;
 
-if (pthread_create(&thread, NULL, Run, this) == 0)
+if (pthread_create(&thread, NULL, Run, this))
     {
-    return 0;
+    errorStr = "Cannot create thread.";
+    logger("Cannot create thread.");
+    printfd(__FILE__, "Cannot create thread\n");
+    return -1;
     }
 
-errorStr = "Cannot create thread.";
-printfd(__FILE__, "Cannot create thread\n");
-return -1;
+return 0;
 }
 //-----------------------------------------------------------------------------
 int ETHER_CAP::Stop()
@@ -125,6 +132,7 @@ if (isRunning)
     if (pthread_kill(thread, SIGUSR1))
         {
         errorStr = "Cannot kill thread.";
+       logger("Cannot send signal to thread.");
         return -1;
         }
     for (int i = 0; i < 25 && isRunning; ++i)
@@ -135,6 +143,7 @@ if (isRunning)
     if (isRunning)
         {
         errorStr = "ETHER_CAP not stopped.";
+       logger("Cannot stop thread.");
         printfd(__FILE__, "Cannot stop thread\n");
         return -1;
         }
@@ -154,7 +163,7 @@ sigset_t signalSet;
 sigfillset(&signalSet);
 pthread_sigmask(SIG_BLOCK, &signalSet, NULL);
 
-ETHER_CAP * dc = (ETHER_CAP *)d;
+ETHER_CAP * dc = static_cast<ETHER_CAP *>(d);
 dc->isRunning = true;
 
 struct ETH_IP
@@ -165,13 +174,11 @@ char        padding[4];
 char        padding1[8];
 };
 
-ETH_IP * ethIP;
-
 char ethip[sizeof(ETH_IP)];
 
 memset(&ethip, 0, sizeof(ETH_IP));
 
-ethIP = (ETH_IP *)&ethip;
+ETH_IP * ethIP = static_cast<ETH_IP *>(static_cast<void *>(&ethip));
 ethIP->rp.dataLen = -1;
 
 char * iface = NULL;
@@ -196,6 +203,8 @@ return NULL;
 int ETHER_CAP::EthCapOpen()
 {
 capSock = socket(PF_PACKET, SOCK_RAW, htons(ETH_P_ALL));
+if (capSock < 0)
+    logger("Cannot create socket: %s", strerror(errno));
 return capSock;
 }
 //-----------------------------------------------------------------------------
@@ -208,7 +217,7 @@ return 0;
 int ETHER_CAP::EthCapRead(void * buffer, int blen, char **)
 {
 struct sockaddr_ll  addr;
-int addrLen, res;
+int addrLen;
 
 if (!WaitPackets(capSock))
     {
@@ -217,14 +226,9 @@ if (!WaitPackets(capSock))
 
 addrLen = sizeof(addr);
 
-res = recvfrom(capSock, ((char*)buffer) + 2, blen, 0, (struct sockaddr *)&addr, (socklen_t*)&addrLen);
-
-if (-1 == res)
+if (recvfrom(capSock, ((char*)buffer) + 2, blen, 0, (struct sockaddr *)&addr, (socklen_t*)&addrLen) < 0)
     {
-    if (errno != EINTR)
-        {
-        printfd(__FILE__, "Error on recvfrom: '%s'\n", strerror(errno));
-        }
+    logger("recvfrom error: %s", strerror(errno));
     return ENODATA;
     }