add a callback type to do more complicated processing

git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@7023 ec53bebd-3082-4978-b11e-865c3cabbd6b

lib/roken/getarg.h

@@ -51,7 +51,8 @@ struct getargs{
 	   arg_flag, 
 	   arg_negative_flag, 
 	   arg_strings,
-	   arg_double
+	   arg_double,
+	   arg_collect
     } type;
     void *value;
     const char *help;
@@ -69,6 +70,11 @@ typedef struct getarg_strings {
     char **strings;
 } getarg_strings;
 
+typedef struct getarg_collect_info {
+    int (*func)(char *optarg, int argc, char **argv, int *optind, void *data);
+    void *data;
+} getarg_collect_info;
+
 int getarg(struct getargs *args, size_t num_args, 
 	   int argc, char **argv, int *optind);