From 10d1450e4995630834736bcb5ed192a463d87659 Mon Sep 17 00:00:00 2001
From: maxtors <moe.andreas@gmail.com>
Date: Wed, 15 Apr 2015 15:21:24 +0200
Subject: [PATCH] Added shortening of listening interface in util-runmodes

Added function LiveSafeDeviceName in util-device that shortens an
NIC device name if the name is over a given length and turns
it in to Ex: longi...eeth1
---
 src/util-device.c   | 25 +++++++++++++++++++++++++
 src/util-device.h   |  1 +
 src/util-runmodes.c |  6 ++++++
 3 files changed, 32 insertions(+)

diff --git a/src/util-device.c b/src/util-device.c
index 9332fcec4f..917e989537 100644
--- a/src/util-device.c
+++ b/src/util-device.c
@@ -19,6 +19,9 @@
 #include "conf.h"
 #include "util-device.h"
 
+#define MAX_DEVNAME 12
+#define DEVNAME_CHUNCK 5
+
 /**
  * \file
  *
@@ -105,6 +108,28 @@ char *LiveGetDeviceName(int number)
     return NULL;
 }
 
+/**
+ *  \brief Shorten a device name that is to long
+ *
+ *  \param device name from config and destination for modified
+ *
+ *  \retval None, is added to destination char *newdevname
+ */
+void LiveSafeDeviceName(const char *devname, char *newdevname)
+{
+    size_t devnamelen = strlen(devname);
+
+    if (devnamelen > MAX_DEVNAME) {
+        strncpy(newdevname, devname, DEVNAME_CHUNCK);
+        strncpy(newdevname+DEVNAME_CHUNCK, "...", 3);
+        strncpy(newdevname+8, devname+(devnamelen-DEVNAME_CHUNCK), DEVNAME_CHUNCK);
+        strncpy(newdevname+13, "\0", 1);
+        SCLogInfo("Shortening device name to: %s", newdevname);
+    } else {
+        strcpy(newdevname, devname);
+    }
+}
+
 /**
  *  \brief Get a pointer to the device at idx
  *
diff --git a/src/util-device.h b/src/util-device.h
index 1fabdbe596..5260db16f0 100644
--- a/src/util-device.h
+++ b/src/util-device.h
@@ -35,6 +35,7 @@ typedef struct LiveDevice_ {
 int LiveRegisterDevice(const char *dev);
 int LiveGetDeviceCount(void);
 char *LiveGetDeviceName(int number);
+void LiveSafeDeviceName(const char *devname, char *newdevname);
 LiveDevice *LiveGetDevice(const char *dev);
 int LiveBuildDeviceList(const char *base);
 void LiveDeviceHasNoStats(void);
diff --git a/src/util-runmodes.c b/src/util-runmodes.c
index 3c5f39a775..cfeba9a845 100644
--- a/src/util-runmodes.c
+++ b/src/util-runmodes.c
@@ -186,6 +186,7 @@ int RunModeSetLiveCaptureAutoFp(ConfigIfaceParserFunc ConfigParser,
 
         for (lthread = 0; lthread < nlive; lthread++) {
             char *live_dev = LiveGetDeviceName(lthread);
+            char visual_devname[14] = "";
             void *aconf;
             int threads_count;
 
@@ -204,6 +205,7 @@ int RunModeSetLiveCaptureAutoFp(ConfigIfaceParserFunc ConfigParser,
 
             threads_count = ModThreadsCount(aconf);
             for (thread = 0; thread < threads_count; thread++) {
+                LiveSafeDeviceName(live_dev, visual_devname);
                 snprintf(tname, sizeof(tname), "%s%s%d", thread_name,
                          live_dev, thread+1);
                 ThreadVars *tv_receive =
@@ -314,12 +316,16 @@ static int RunModeSetLiveCaptureWorkersForDevice(ConfigIfaceThreadsCountFunc Mod
     /* create the threads */
     for (thread = 0; thread < threads_count; thread++) {
         char tname[TM_THREAD_NAME_MAX];
+        char *n_thread_name = NULL;
+        char visual_devname[13] = "";
         ThreadVars *tv = NULL;
         TmModule *tm_module = NULL;
 
         if (single_mode) {
             snprintf(tname, sizeof(tname), "%s", thread_name);
         } else {
+            LiveSafeDeviceName(live_dev, visual_devname);
+            SCLogInfo("New dev name %s", visual_devname);
             snprintf(tname, sizeof(tname), "%s%s%d",
                      thread_name, live_dev, thread+1);
         }