From e6d68876f5adba0c9614572ec1f75ecd14cadbe5 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Love=20H=C3=B6rnquist=20=C3=85strand?= <lha@kth.se>
Date: Mon, 28 Aug 2006 14:16:43 +0000
Subject: [PATCH] Add sl_slc_help.

git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@17948 ec53bebd-3082-4978-b11e-865c3cabbd6b
---
 lib/sl/sl.c | 38 ++++++++++++++++++++++++++++++++++++++
 lib/sl/sl.h |  1 +
 2 files changed, 39 insertions(+)

diff --git a/lib/sl/sl.c b/lib/sl/sl.c
index b9141f334..e15862848 100644
--- a/lib/sl/sl.c
+++ b/lib/sl/sl.c
@@ -348,3 +348,41 @@ sl_apropos (SL_cmd *cmd, const char *topic)
         if (cmd->usage != NULL && strstr(cmd->usage, topic) != NULL)
 	    printf ("%-20s%s\n", cmd->name, cmd->usage);
 }
+
+/*
+ * Help to be used with slc.
+ */
+
+void
+sl_slc_help (SL_cmd *cmds, int argc, char **argv)
+{
+    if(argc == 0) {
+	sl_help(cmds, 1, argv - 1 /* XXX */);
+    } else {
+	SL_cmd *c = sl_match (cmds, 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;
+}
diff --git a/lib/sl/sl.h b/lib/sl/sl.h
index c3611ab39..ef92fdc24 100644
--- a/lib/sl/sl.h
+++ b/lib/sl/sl.h
@@ -60,6 +60,7 @@ int  sl_command (SL_cmd *cmds, int argc, char **argv);
 int sl_make_argv(char*, int*, char***);
 void sl_apropos (SL_cmd *cmd, const char *topic);
 SL_cmd *sl_match (SL_cmd *cmds, char *cmd, int exactp);
+void sl_slc_help (SL_cmd *cmds, int argc, char **argv);
 
 #ifdef __cplusplus
 }