Initial test file, moved gitignore.

.gitignore_copy/.gitignore

@@ -0,0 +1,32 @@
+# Prerequisites
+*.d
+
+# Compiled Object files
+*.slo
+*.lo
+*.o
+*.obj
+
+# Precompiled Headers
+*.gch
+*.pch
+
+# Compiled Dynamic libraries
+*.so
+*.dylib
+*.dll
+
+# Fortran module files
+*.mod
+*.smod
+
+# Compiled Static libraries
+*.lai
+*.la
+*.a
+*.lib
+
+# Executables
+*.exe
+*.out
+*.app

set_device.cpp

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+#include <stdio.h>
+#include <pcap.h>
+
+// Naive, implies the user will pass in and consequently
+// know what the device name is.
+
+/*
+int main(int argc, char *argv[])
+{
+	 char *dev = argv[1];
+
+	 printf("Device: %s\n", dev);
+	 return(0);
+}
+*/
+
+// In this way, the program detects the device to use on its own.
+
+int main(int argc, char *argv[])
+{
+	char *dev, errbuf[PCAP_ERRBUF_SIZE];
+
+    dev = pcap_lookupdev(errbuf);
+	if (dev == NULL) {
+		fprintf(stderr, "Couldn't find default device: %s\n", errbuf);
+		return(2);
+	}
+	printf("Device: %s\n", dev);
+	return(0);
+}