Fixed invalid check of pthread_create return value.

[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 f620c8027be96fba30024ed330cd48a4eb1e19f5..6ed2e0680627c18ef6e5e3a426b393832f2a648f 100644 (file)
--- a/projects/stargazer/plugins/capture/ether_linux/ether_cap.cpp
+++ b/projects/stargazer/plugins/capture/ether_linux/ether_cap.cpp
@@ -97,14 +97,15 @@ 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()
@@ -126,6 +127,7 @@ 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)
@@ -136,6 +138,7 @@ if (isRunning)
     if (isRunning)
         {
         errorStr = "ETHER_CAP not stopped.";
+       logger("Cannot stop thread.");
         printfd(__FILE__, "Cannot stop thread\n");
         return -1;
         }
@@ -197,6 +200,8 @@ 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;
 }
 //-----------------------------------------------------------------------------
@@ -220,12 +225,9 @@ addrLen = sizeof(addr);
 
 res = recvfrom(capSock, ((char*)buffer) + 2, blen, 0, (struct sockaddr *)&addr, (socklen_t*)&addrLen);
 
-if (-1 == res)
+if (res < 0)
     {
-    if (errno != EINTR)
-        {
-        printfd(__FILE__, "Error on recvfrom: '%s'\n", strerror(errno));
-        }
+    logger("recvfrom error: %s", strerror(errno));
     return ENODATA;
     }