1 files changed, 37 insertions, 0 deletions
diff --git a/etc/scripts/bootstrap-busybox/appletlib.c b/etc/scripts/bootstrap-busybox/appletlib.c
new file mode 100644
index 0000000..aa63360
--- /dev/null
+++ b/etc/scripts/bootstrap-busybox/appletlib.c
@@ -0,0 +1,37 @@
+/*
+ * Minimalistic implementation of appletlib.c that does not require any header
+ * generation.
+ */
+#define stringify_impl(x)   #x
+#define stringify(x)        stringify_impl(x)
+#define concat(x,y)         x##y
+#define applet_main(name)   concat(name, _main)
+
+/* Define this accessor before we #define "errno" our way */
+#include <errno.h>
+static inline int *get_perrno(void) { return &errno; }
+
+#include stringify(APPLET_GROUP/APPLET_NAME.c)
+
+int main(int argc, char **argv) {
+#ifdef bb_cached_errno_ptr
+	ASSIGN_CONST_PTR(&bb_errno, get_perrno());
+#endif
+  return applet_main(APPLET_NAME)(argc, argv);
+}
+
+/* missing definitions from appletlib.c */
+const char *applet_name = stringify(APPLET_NAME);
+void bb_show_usage() { xfunc_die(); }
+unsigned string_array_len(char **argv) {
+  char **start = argv;
+  while (*argv)
+    argv++;
+  return argv - start;
+}
+
+/* missing definitions for tar.c (despite 'to_command' being disabled) */
+#include "bb_archive.h"
+void FAST_FUNC data_extract_to_command(archive_handle_t *archive_handle) {
+  /* unused */
+}