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-rw-r--r--toys/help.c33
1 files changed, 33 insertions, 0 deletions
diff --git a/toys/help.c b/toys/help.c
new file mode 100644
index 00000000..6af743fc
--- /dev/null
+++ b/toys/help.c
@@ -0,0 +1,33 @@
+/* vi: set sw=4 ts=4: */
+/*
+ * help.c - Show help for toybox
+ */
+
+#include "toys.h"
+#include "toys/help.h"
+
+#undef NEWTOY
+#undef OLDTOY
+#define NEWTOY(name,opt,flags) help_##name "\0"
+#define OLDTOY(name,oldname,opts,flags) "\xff" #oldname "\0"
+static char *help_data =
+#include "toys/toylist.h"
+;
+
+int help_main(void)
+{
+ struct toy_list *t = toy_find(*toys.optargs);
+ int i = t-toy_list;
+ char *s = help_data;
+
+ if (!t) error_exit("Unknown command '%s'\n", *toys.optargs);
+ for (;;) {
+ while (i--) s += strlen(s) + 1;
+ if (*s != 255) break;
+ i = toy_find(++s)-toy_list;
+ s = help_data;
+ }
+
+ printf("%s", s);
+ return 0;
+}