From ae7a7a0abf80a1e436b7fbd9972b7d0a96608eb5 Mon Sep 17 00:00:00 2001
From: goldsimon <goldsimon>
Date: Sun, 23 Aug 2009 10:57:37 +0000
Subject: [PATCH] Added function tcp_debug_state_str() to convert a tcp state
 to a human-readable string.

---
 CHANGELOG              |  4 +++
 src/core/tcp.c         | 57 ++++++++++++++++--------------------------
 src/include/lwip/tcp.h |  1 +
 3 files changed, 26 insertions(+), 36 deletions(-)

diff --git a/CHANGELOG b/CHANGELOG
index a4576501..8ad99cab 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -19,6 +19,10 @@ HISTORY
 
   ++ New features:
 
+  2009-09-23 Simon Goldschmidt
+  * tcp.h/.c: Added function tcp_debug_state_str() to convert a tcp state
+    to a human-readable string.
+
   ++ Bugfixes:
 
 
diff --git a/src/core/tcp.c b/src/core/tcp.c
index 0f3fd41c..cd4ea31b 100644
--- a/src/core/tcp.c
+++ b/src/core/tcp.c
@@ -53,6 +53,20 @@
 
 #include <string.h>
 
+const char *tcp_state_str[] = {
+  "CLOSED",      
+  "LISTEN",      
+  "SYN_SENT",    
+  "SYN_RCVD",    
+  "ESTABLISHED", 
+  "FIN_WAIT_1",  
+  "FIN_WAIT_2",  
+  "CLOSE_WAIT",  
+  "CLOSING",     
+  "LAST_ACK",    
+  "TIME_WAIT"   
+};
+
 /* Incremented every coarse grained timer shot (typically every 500 ms). */
 u32_t tcp_ticks;
 const u8_t tcp_backoff[13] =
@@ -1325,6 +1339,12 @@ tcp_debug_print(struct tcp_hdr *tcphdr)
   LWIP_DEBUGF(TCP_DEBUG, ("+-------------------------------+\n"));
 }
 
+const char*
+tcp_debug_state_str(enum tcp_state s)
+{
+  return tcp_state_str[s];
+}
+
 /**
  * Print a tcp state for debugging purposes.
  *
@@ -1333,42 +1353,7 @@ tcp_debug_print(struct tcp_hdr *tcphdr)
 void
 tcp_debug_print_state(enum tcp_state s)
 {
-  LWIP_DEBUGF(TCP_DEBUG, ("State: "));
-  switch (s) {
-  case CLOSED:
-    LWIP_DEBUGF(TCP_DEBUG, ("CLOSED\n"));
-    break;
- case LISTEN:
-   LWIP_DEBUGF(TCP_DEBUG, ("LISTEN\n"));
-   break;
-  case SYN_SENT:
-    LWIP_DEBUGF(TCP_DEBUG, ("SYN_SENT\n"));
-    break;
-  case SYN_RCVD:
-    LWIP_DEBUGF(TCP_DEBUG, ("SYN_RCVD\n"));
-    break;
-  case ESTABLISHED:
-    LWIP_DEBUGF(TCP_DEBUG, ("ESTABLISHED\n"));
-    break;
-  case FIN_WAIT_1:
-    LWIP_DEBUGF(TCP_DEBUG, ("FIN_WAIT_1\n"));
-    break;
-  case FIN_WAIT_2:
-    LWIP_DEBUGF(TCP_DEBUG, ("FIN_WAIT_2\n"));
-    break;
-  case CLOSE_WAIT:
-    LWIP_DEBUGF(TCP_DEBUG, ("CLOSE_WAIT\n"));
-    break;
-  case CLOSING:
-    LWIP_DEBUGF(TCP_DEBUG, ("CLOSING\n"));
-    break;
-  case LAST_ACK:
-    LWIP_DEBUGF(TCP_DEBUG, ("LAST_ACK\n"));
-    break;
-  case TIME_WAIT:
-    LWIP_DEBUGF(TCP_DEBUG, ("TIME_WAIT\n"));
-   break;
-  }
+  LWIP_DEBUGF(TCP_DEBUG, ("State: %s\n", tcp_state_str[s]));
 }
 
 /**
diff --git a/src/include/lwip/tcp.h b/src/include/lwip/tcp.h
index 8f6b9d3c..6d0f8886 100644
--- a/src/include/lwip/tcp.h
+++ b/src/include/lwip/tcp.h
@@ -591,6 +591,7 @@ extern u32_t tcp_ticks;
 #if TCP_DEBUG || TCP_INPUT_DEBUG || TCP_OUTPUT_DEBUG
 void tcp_debug_print(struct tcp_hdr *tcphdr);
 void tcp_debug_print_flags(u8_t flags);
+const char* tcp_debug_state_str(enum tcp_state s);
 void tcp_debug_print_state(enum tcp_state s);
 void tcp_debug_print_pcbs(void);
 s16_t tcp_pcbs_sane(void);