[Finsh] Add features to execute module.

components/finsh/msh.c

@@ -24,13 +24,18 @@
  *
  * Change Logs:
  * Date           Author       Notes
- * 2013-03-30     Bernard      the first verion for FinSH
+ * 2013-03-30     Bernard      the first verion for finsh
+ * 2014-01-03     Bernard      msh can execute module.
  */
 
 #include "msh.h"
 #include <finsh.h>
 #include <shell.h>
 
+#ifdef RT_USING_DFS
+#include <dfs_posix.h>
+#endif
+
 #define RT_FINSH_ARG_MAX    10
 typedef int (*cmd_function_t)(int argc, char** argv);
 
@@ -171,6 +176,72 @@ static cmd_function_t msh_get_cmd(char *cmd)
     return cmd_func;
 }
 
+#if defined(RT_USING_MODULE) && defined(RT_USING_DFS)
+int msh_exec_module(int argc, char** argv)
+{
+    int fd = -1;
+    char *pg_name;
+    int length, cmd_length;
+
+    if (argc == 0) return -RT_ERROR; /* no command */
+
+    /* get name length */
+    cmd_length = rt_strlen(argv[0]); length = cmd_length + 32;
+
+    pg_name = (char*) rt_malloc(length);
+    if (pg_name == RT_NULL) return -RT_ENOMEM; /* no memory */
+
+    if (strstr(argv[0], ".mo") != RT_NULL || strstr(argv[0], ".MO") != RT_NULL)
+    {
+        /* try to open program */
+        if (fd < 0)
+        {
+            rt_snprintf(pg_name, length - 1, "%s", argv[0]);
+            fd = open(pg_name, O_RDONLY, 0);
+        }
+
+        /* search in /bin path */
+        if (fd < 0)
+        {
+            rt_snprintf(pg_name, length - 1, "/bin/%s", argv[0]);
+            fd = open(pg_name, O_RDONLY, 0);
+        }
+    }
+    else
+    {
+        /* add .mo and open program */
+
+        /* try to open program */
+        if (fd < 0)
+        {
+            rt_snprintf(pg_name, length - 1, "%s.mo", argv[0]);
+            fd = open(pg_name, O_RDONLY, 0);
+        }
+
+        /* search in /bin path */
+        if (fd < 0)
+        {
+            rt_snprintf(pg_name, length - 1, "/bin/%s.mo", argv[0]);
+            fd = open(pg_name, O_RDONLY, 0);
+        }
+    }
+    
+    if (fd >= 0)
+    {
+        /* found program */
+        close(fd);
+        rt_module_open(pg_name);
+    }
+    else
+    {
+        rt_kprintf("%s: program not found.\n", argv[0]);
+    }
+
+    rt_free(pg_name);
+    return 0;
+}
+#endif
+
 int msh_exec(char* cmd, rt_size_t length)
 {
     int argc;
@@ -186,7 +257,11 @@ int msh_exec(char* cmd, rt_size_t length)
     cmd_func = msh_get_cmd(argv[0]);
     if (cmd_func == RT_NULL) 
     {
-		rt_kprintf("%s: command not found\n", argv[0]);
+#ifdef RT_USING_MODULE
+        msh_exec_module(argc, argv);
+#else
+        rt_kprintf("%s: command not found.\n", argv[0]);
+#endif
         return -1;
     }
 
@@ -208,7 +283,6 @@ static int str_common(const char *str1, const char *str2)
 }
 
 #ifdef RT_USING_DFS
-#include <dfs_posix.h>
 void msh_auto_complete_path(char *path)
 {
     DIR* dir;