1 files changed, 92 insertions, 0 deletions
diff --git a/applets/applets.c b/applets/applets.c
new file mode 100644
index 0000000..1e31e89
--- /dev/null
+++ b/applets/applets.c
@@ -0,0 +1,92 @@
+/* vi: set sw=4 ts=4: */
+/*
+ * Utility routines.
+ *
+ * Copyright (C) tons of folks.  Tracking down who wrote what
+ * isn't something I'm going to worry about...  If you wrote something
+ * here, please feel free to acknowledge your work.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ * Based in part on code from sash, Copyright (c) 1999 by David I. Bell 
+ * Permission has been granted to redistribute this code under the GPL.
+ *
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include "busybox.h"
+
+#define bb_need_full_version
+#define BB_DECLARE_EXTERN
+#include "messages.c"
+
+struct BB_applet *applet_using;
+
+extern void show_usage(void)
+{
+	const char *format_string;
+	const char *usage_string = usage_messages;
+	int i;
+
+	for (i = applet_using - applets; i > 0; ) {
+		if (!*usage_string++) {
+			--i;
+		}
+	}
+	format_string = "%s\n\nUsage: %s %s\n\n";
+	if(*usage_string == 0)
+		format_string = "%s\n\nNo help available.\n\n";
+	fprintf(stderr, format_string,
+			full_version, applet_using->name, usage_string);
+	exit(EXIT_FAILURE);
+}
+
+static int applet_name_compare(const void *x, const void *y)
+{
+	const char *name = x;
+	const struct BB_applet *applet = y;
+
+	return strcmp(name, applet->name);
+}
+
+extern size_t NUM_APPLETS;
+
+struct BB_applet *find_applet_by_name(const char *name)
+{
+	return bsearch(name, applets, NUM_APPLETS, sizeof(struct BB_applet),
+			applet_name_compare);
+}
+
+void run_applet_by_name(const char *name, int argc, char **argv)
+{
+	/* Do a binary search to find the applet entry given the name. */
+	if ((applet_using = find_applet_by_name(name)) != NULL) {
+		applet_name = applet_using->name;
+		if (argv[1] && strcmp(argv[1], "--help") == 0)
+			show_usage();
+		exit((*(applet_using->main)) (argc, argv));
+	}
+}
+
+
+/* END CODE */
+/*
+Local Variables:
+c-file-style: "linux"
+c-basic-offset: 4
+tab-width: 4
+End:
+*/