Improved help functionality

Now each command can (should!) add a help function.  This
is done by editing commands.h to add the function name for
the function printing out the help text.

Added help text for the config command.

This help function will be called when eurephiadm is called with:

	eurephiadm -h <command>
	eurephiadm --help <command>
	eurephiadm help <command>

In addition the command function should also parse arguments and
call the help function when --help or -h argument is given, like

	eurephiadm config -h
	eurephaidm config --help

1 files changed, 5 insertions, 3 deletions

diff --git a/eurephiadm/commands.h b/eurephiadm/commands.h
index a8bafe5..95ae9cf 100644
--- a/eurephiadm/commands.h
+++ b/eurephiadm/commands.h
@@ -30,7 +30,7 @@ typedef struct {
         char *accesslvl;
         char *arghint;
         char *helpinfo;
-        char *helpdescr;
+        void (*helpfunc)(void);
         int (*function)(eurephiaCTX *, eurephiaSESSION *, eurephiaVALUES *, int argc, char **argv);
 } eurephiadm_functions;
 
@@ -40,8 +40,10 @@ int cmd_Logout(eurephiaCTX *, eurephiaSESSION *, eurephiaVALUES *cfg, int argc,
 int cmd_ShowCfg(eurephiaCTX *, eurephiaSESSION *, eurephiaVALUES *cfg, int argc, char **argv);
 
 
-/*  Commands listed are found in ./commands/{command}.c files - one file per command*/
+/*  Commands and help functions listed here are found in ./commands/{command}.c files - one file per command*/
 int cmd_ListUsers(eurephiaCTX *, eurephiaSESSION *, eurephiaVALUES *cfg, int argc, char **argv);
+
+void help_EditConfig();
 int cmd_EditConfig(eurephiaCTX *, eurephiaSESSION *, eurephiaVALUES *cfg, int argc, char **argv);
 
 
@@ -66,7 +68,7 @@ static const eurephiadm_functions cmdline_functions[] = {
          "List only config file settings",         NULL, cmd_ShowCfg},
 
         {"config",          1, "config",    "[-s|-d] <key>",
-         "Add, delete or show one config setting", NULL, cmd_EditConfig},
+         "Add, delete or show one config setting", help_EditConfig, cmd_EditConfig},
 
         // End of records marker
         {NULL,              0, NULL,        NULL,