From ecb5f954132e39ed7148c4fb8b7f725ae9a8b5cf Mon Sep 17 00:00:00 2001
From: Joel Sherrill <joel.sherrill@OARcorp.com>
Date: Thu, 9 Aug 2001 21:39:34 +0000
Subject: 2001-08-09	Keith Outwater <vac4050@cae597.rsc.raytheon.com>

	* monitor/mon-command.c: Add support for partial command matching.
	The monitor used to have this functionality before it was overhauled
	to support addition of user commands.
---
 cpukit/libmisc/monitor/mon-command.c | 53 +++++++++++++++++++++++++++++-------
 1 file changed, 43 insertions(+), 10 deletions(-)

(limited to 'cpukit/libmisc/monitor')

diff --git a/cpukit/libmisc/monitor/mon-command.c b/cpukit/libmisc/monitor/mon-command.c
index 9f7a70c3aa..3bd76467c8 100644
--- a/cpukit/libmisc/monitor/mon-command.c
+++ b/cpukit/libmisc/monitor/mon-command.c
@@ -12,8 +12,15 @@
 
 #include <stdio.h>
 #include <string.h>
+#include <stdlib.h>
 
 /*
+ * 2001-01-30 KJO (vac4050@cae597.rsc.raytheon.com):
+ *  Fixed rtems_monitor_command_lookup() to accept partial 
+ *  commands to uniqeness.  Added support for setting 
+ *  the monitor prompt via an environment variable:
+ *  RTEMS_MONITOR_PROMPT
+ *
  * CCJ: 26-3-2000, adding command history and command line
  * editing. This code is donated from My Right Boot and not
  * covered by GPL, only the RTEMS license.
@@ -461,17 +468,23 @@ rtems_monitor_command_read(char *command,
                            int  *argc,
                            char **argv)
 {
+	char *env_prompt;
+
+	env_prompt = getenv("RTEMS_MONITOR_PROMPT");
+
   /*
    * put node number in the prompt if we are multiprocessing
    */
-
   if (!rtems_configuration_get_user_multiprocessing_table ())
-    sprintf (monitor_prompt, "%s", MONITOR_PROMPT);
+    sprintf (monitor_prompt, "%s",  
+             (env_prompt == NULL) ? MONITOR_PROMPT: env_prompt);
   else if (rtems_monitor_default_node != rtems_monitor_node)
     sprintf (monitor_prompt, "%d-%s-%d", rtems_monitor_node,
-             MONITOR_PROMPT, rtems_monitor_default_node);
+             (env_prompt == NULL) ? MONITOR_PROMPT : env_prompt,
+             rtems_monitor_default_node);
   else
-    sprintf (monitor_prompt, "%d-%s", rtems_monitor_node, MONITOR_PROMPT);
+    sprintf (monitor_prompt, "%d-%s", rtems_monitor_node, 
+             (env_prompt == NULL) ? MONITOR_PROMPT : env_prompt);
 
 #if defined(RTEMS_UNIX)
   /* RTEMS on unix gets so many interrupt system calls this is hosed */
@@ -498,27 +511,47 @@ rtems_monitor_command_lookup(
     char                          **argv
 )
 {
-  char *command;
+  int command_length;
+  rtems_monitor_command_entry_t *found_it = NULL;
 
-  command = argv[0];
+  command_length = strlen (argv[0]);
 
-  if ((table == 0) || (command == 0))
+  if ((table == 0) || (argv[0] == 0))
     return 0;
     
   while (table)
   {
     if (table->command)
     {
-      if (STREQ (command, table->command))  /* exact match */
+
+      /*
+       * Check for ambiguity
+       */
+      if (!strncmp (table->command, argv[0], command_length))
       {
-        if (table->command_function == 0)
+        if (found_it)
+        {
           return 0;
-        return table;
+        }
+       
+        else
+          found_it = table;
       }
     }
     table = table->next;
   }
 
+  /*
+   * No ambiguity (the possible partial command was unique after all)
+   */
+  if (found_it)
+  {
+    if (table->command_function == 0)
+      return 0;
+
+    return found_it;
+  }
+
   return 0;
 }
 
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