Parse only sockets for nodriver mode

userspace/libscap/scap.c

@@ -430,7 +430,7 @@ scap_t* scap_open_nodriver_int(char *error,
 	handle->m_machine_info.reserved3 = 0;
 	handle->m_machine_info.reserved4 = 0;
 	handle->m_driver_procinfo = NULL;
-	handle->m_fd_lookup_limit = 20; // fd lookup is limited here because is very expensive
+	handle->m_fd_lookup_limit = SCAP_NODRIVER_MAX_FD_LOOKUP; // fd lookup is limited here because is very expensive
 
 	//
 	// Create the interface list

userspace/libscap/scap_fds.c

@@ -1413,6 +1413,14 @@ int32_t scap_fd_scan_fd_dir(scap_t *handle, char *procdir, scap_threadinfo *tinf
 		{
 			continue;
 		}
+
+		// In no driver mode to limit cpu usage we just parse sockets
+		// because we are interested only on them
+		if(handle->m_mode == SCAP_MODE_NODRIVER && !S_ISSOCK(sb.st_mode))
+		{
+			continue;
+		}
+
 		switch(sb.st_mode & S_IFMT)
 		{
 		case S_IFIFO:

userspace/libscap/settings.h

@@ -5,3 +5,5 @@
 #define INCLUDE_UNKNOWN_SOCKET_FDS
 
 #define USE_ZLIB
+
+#define SCAP_NODRIVER_MAX_FD_LOOKUP 20