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authorlandley <landley@driftwood>2006-09-27 00:45:05 -0400
committerlandley <landley@driftwood>2006-09-27 00:45:05 -0400
commit13bab2f09e9189c2b1e83ae37a1134108f9479cf (patch)
tree148ceea436c59c9a7c3e4deec638b52b16e307e5 /toys
downloadtoybox-13bab2f09e9189c2b1e83ae37a1134108f9479cf.tar.gz
Starting a new project. Just a bit past the "hello world" stage...
Diffstat (limited to 'toys')
-rw-r--r--toys/main.c95
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();
+}