use slc

git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@17853 ec53bebd-3082-4978-b11e-865c3cabbd6b

lib/gssapi/gss.c

@@ -41,6 +41,7 @@
 #include <roken.h>
 #include <getarg.h>
 #include <rtbl.h>
+#include <gss-commands.h>
 
 RCSID("$Id$");
 
@@ -63,8 +64,8 @@ usage (int ret)
 #define COL_OID		"OID"
 #define COL_NAME	"Name"
 
-static void
+int
-supported_mechs(void)
+supported_mechs(void *argptr, int argc, char **argv)
 {
     OM_uint32 maj_stat, min_stat;
     gss_OID_set mechs;
@@ -105,6 +106,42 @@ supported_mechs(void)
 
     rtbl_format(ct, stdout);
     rtbl_destroy(ct);
+
+    return 0;
+}
+
+int
+help(void *opt, int argc, char **argv)
+{
+    if(argc == 0) {
+	sl_help(commands, 1, argv - 1 /* XXX */);
+    } else {
+	SL_cmd *c = sl_match (commands, argv[0], 0);
+ 	if(c == NULL) {
+	    fprintf (stderr, "No such command: %s. "
+		     "Try \"help\" for a list of commands\n",
+		     argv[0]);
+	} else {
+	    if(c->func) {
+		char *fake[] = { NULL, "--help", NULL };
+		fake[0] = argv[0];
+		(*c->func)(2, fake);
+		fprintf(stderr, "\n");
+	    }
+	    if(c->help && *c->help)
+		fprintf (stderr, "%s\n", c->help);
+	    if((++c)->name && c->func == NULL) {
+		int f = 0;
+		fprintf (stderr, "Synonyms:");
+		while (c->name && c->func == NULL) {
+		    fprintf (stderr, "%s%s", f ? ", " : " ", (c++)->name);
+		    f = 1;
+		}
+		fprintf (stderr, "\n");
+	    }
+	}
+    }
+    return 0;
 }
 
 int
@@ -127,7 +164,10 @@ main(int argc, char **argv)
     argc -= optidx;
     argv += optidx;
 
-    supported_mechs();
+    if (argc == 0)
+	help(NULL, argc, argv);
+    else
+	sl_command (commands, argc, argv);
 
     return 0;
 }