Starting a new project. Just a bit past the "hello world" stage...

1 files changed, 95 insertions, 0 deletions

diff --git a/toys/main.c b/toys/main.c
new file mode 100644
index 00000000..bd15d602
--- /dev/null
+++ b/toys/main.c
@@ -0,0 +1,95 @@
+/* vi: set ts=4 :*/
+/* Toybox infrastructure.
+ *
+ * Copyright 2006 Rob Landley <rob@landley.net>
+ *
+ * Licensed under GPL version 2, see file LICENSE in this tarball for details.
+ */
+
+#include <stdio.h>
+#include <strings.h>
+
+/*
+name
+main()
+struct
+usage (short long example info)
+path (/usr/sbin)
+*/
+
+int toybox_main(void)
+{
+	printf("toybox\n");
+	return 0;
+}
+
+int toysh_main(void)
+{
+	printf("toysh\n");
+}
+
+// The monster fun applet list.
+
+struct toy_list {
+	char *name;
+	int (*toy_main)(void);
+} toy_list[] = {
+	{"toybox", toybox_main},
+	{"toysh", toysh_main}
+};
+
+// Global context for this applet.
+
+struct toy_context {
+	struct toy_list *which;
+	int argc;
+	char **argv;
+	char buf[4096];
+//	toy_union toydata;
+} toys;
+
+struct toy_list *find_toy_by_name(char *name)
+{
+	int top, bottom, middle;
+
+	// If the name starts with "toybox", accept that as a match.  Otherwise
+	// skip the first entry, which is out of order.
+
+	if (!strncmp(name,"toybox",6)) return toy_list;
+	bottom=1;
+
+	// Binary search to find this applet.
+
+	top=(sizeof(toy_list)/sizeof(struct toy_list))-1;
+	for(;;) {
+		int result;
+		
+		middle=(top+bottom)/2;
+		if(middle<bottom || middle>top) return NULL;
+		result = strcmp(name,toy_list[middle].name);
+		if(!result) return toy_list+middle;
+		if(result<0) top=--middle;
+		else bottom=++middle;
+	}
+}
+
+int main(int argc, char *argv[])
+{
+	char *name;
+
+	// Record command line arguments.
+	toys.argc = argc;
+	toys.argv = argv;
+
+	// Figure out which applet got called.
+	name = rindex(argv[0],'/');
+	if (!name) name = argv[0];
+	else name++;
+	toys.which = find_toy_by_name(name);
+
+	if (!toys.which) {
+		dprintf(2,"No behavior for %s\n",name);
+		return 1;
+	}
+	return toys.which->toy_main();
+}