From 849130da2c7128d88a1b5516cf1b955461718601 Mon Sep 17 00:00:00 2001
From: roamboy <0yfj0@163.com>
Date: Mon, 13 Jan 2014 15:52:23 +0800
Subject: [PATCH 1/3] Update msh.c

fix msh_exec(char* cmd, rt_size_t length) bug
---
 components/finsh/msh.c | 15 ++++++++++++++-
 1 file changed, 14 insertions(+), 1 deletion(-)

diff --git a/components/finsh/msh.c b/components/finsh/msh.c
index 8da80fad5..98c34c1de 100644
--- a/components/finsh/msh.c
+++ b/components/finsh/msh.c
@@ -257,16 +257,29 @@ int msh_exec(char* cmd, rt_size_t length)
 	int cmd0_size = 0;
     cmd_function_t cmd_func;
 
+	while(*cmd  == ' ') 
+	{
+		cmd++;
+		length--;
+	}
 	while ((cmd[cmd0_size] != ' ' && cmd[cmd0_size] != '\t') && cmd0_size < length)
 		cmd0_size ++;
-
+	
 	/* try to get built-in command */
+	if (cmd0_size == 0) return -1;
 	cmd_func = msh_get_cmd(cmd, cmd0_size);
 	if (cmd_func == RT_NULL)
 	{
 #ifdef RT_USING_MODULE
 		msh_exec_module(cmd, length);
 #else
+		argv[0] = cmd;
+		while(*cmd != ' ')
+		{
+			if (*cmd == 0) break;
+			cmd++;
+		}
+		if (*cmd == ' ') *cmd = 0;
 		rt_kprintf("%s: command not found.\n", argv[0]);
 #endif
 		return -1;

From 1df4c1b9629269a4e5374f44873026b122eeb0ab Mon Sep 17 00:00:00 2001
From: roamboy <0yfj0@163.com>
Date: Mon, 13 Jan 2014 15:56:20 +0800
Subject: [PATCH 2/3] Update msh.c

---
 components/finsh/msh.c | 51 +++++++++++++++++++++---------------------
 1 file changed, 25 insertions(+), 26 deletions(-)

diff --git a/components/finsh/msh.c b/components/finsh/msh.c
index 98c34c1de..8d2a51e92 100644
--- a/components/finsh/msh.c
+++ b/components/finsh/msh.c
@@ -253,39 +253,38 @@ int msh_exec(char* cmd, rt_size_t length)
 {
     int argc;
     char *argv[RT_FINSH_ARG_MAX];
-
-	int cmd0_size = 0;
+    int cmd0_size = 0;
     cmd_function_t cmd_func;
 
-	while(*cmd  == ' ') 
-	{
-		cmd++;
-		length--;
-	}
-	while ((cmd[cmd0_size] != ' ' && cmd[cmd0_size] != '\t') && cmd0_size < length)
-		cmd0_size ++;
+    while(*cmd  == ' ') 
+    {
+        cmd++;
+        length--;
+    }
+    while ((cmd[cmd0_size] != ' ' && cmd[cmd0_size] != '\t') && cmd0_size < length)
+        cmd0_size ++;
 	
-	/* try to get built-in command */
-	if (cmd0_size == 0) return -1;
-	cmd_func = msh_get_cmd(cmd, cmd0_size);
-	if (cmd_func == RT_NULL)
-	{
+    /* try to get built-in command */
+    if (cmd0_size == 0) return -1;
+    cmd_func = msh_get_cmd(cmd, cmd0_size);
+    if (cmd_func == RT_NULL)
+    {
 #ifdef RT_USING_MODULE
-		msh_exec_module(cmd, length);
+        msh_exec_module(cmd, length);
 #else
-		argv[0] = cmd;
-		while(*cmd != ' ')
-		{
-			if (*cmd == 0) break;
-			cmd++;
-		}
-		if (*cmd == ' ') *cmd = 0;
-		rt_kprintf("%s: command not found.\n", argv[0]);
+        argv[0] = cmd;
+        while(*cmd != ' ')
+        {
+            if (*cmd == 0) break;
+                cmd++;
+        }
+        if (*cmd == ' ') *cmd = 0;
+        rt_kprintf("%s: command not found.\n", argv[0]);
 #endif
-		return -1;
-	}
+        return -1;
+    }
 
-	/* split arguments */
+    /* split arguments */
     memset(argv, 0x00, sizeof(argv));
     argc = msh_split(cmd, length, argv);
     if (argc == 0) return -1;

From 1c8693c87eb4636df0edeb0dfeb36551df6f5e75 Mon Sep 17 00:00:00 2001
From: roamboy <0yfj0@163.com>
Date: Mon, 13 Jan 2014 15:57:13 +0800
Subject: [PATCH 3/3] Update msh.c

---
 components/finsh/msh.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/components/finsh/msh.c b/components/finsh/msh.c
index 8d2a51e92..35ebb4b55 100644
--- a/components/finsh/msh.c
+++ b/components/finsh/msh.c
@@ -276,7 +276,7 @@ int msh_exec(char* cmd, rt_size_t length)
         while(*cmd != ' ')
         {
             if (*cmd == 0) break;
-                cmd++;
+            cmd++;
         }
         if (*cmd == ' ') *cmd = 0;
         rt_kprintf("%s: command not found.\n", argv[0]);