1 files changed, 69 insertions, 0 deletions
diff --git a/target/linux/realtek/files/rtkload/read_fd.c b/target/linux/realtek/files/rtkload/read_fd.c
new file mode 100644
index 000000000..bf40fb30e
--- /dev/null
+++ b/target/linux/realtek/files/rtkload/read_fd.c
@@ -0,0 +1,69 @@
+/* This file has not been tested for ages. */
+
+#include "hfload.h"
+
+#include <sys/stat.h>
+#include <sys/mman.h>
+#include <unistd.h>
+
+void 
+read_struct(void *s, ssize_t size) 
+{
+        ssize_t real;
+
+        real = read(0, s, size);
+        if (size != real) {
+                printf("trying to read %d, got %d; dying.\n", size, real);
+                exit(1);
+        }
+        file_offset += real;
+}
+
+void
+seek_forward(int offset) {
+        int dummy, i;
+        ssize_t real;
+
+        if (offset % 4 != 0) {
+                printf("Can't seek by a non-word aligned amount\n");
+                exit(1);
+        }
+        
+        if (offset < file_offset) {
+                printf("can't seek backwards\n");
+                exit(1);
+        }
+
+        for (; offset < file_offset; file_offset += 4) {
+                real = read(0, &dummy, 4);
+                if (real != 4) {
+                        printf("error seeking forward at offset %d\n", file_offset);
+                        exit(1);
+                }
+        }
+}
+
+void
+copy_to_region(int *addr, ssize_t size) {
+        int i, dummy, real;
+
+        printf("copying %x bytes from file offset %x to address %08x\n",
+               size, file_offset, addr);
+
+#ifdef FAKE_COPYING
+        for (i = 0; i < size; i += 4) {
+                read_struct(&dummy, sizeof(int));
+        }
+#else
+        real = read(0, addr, size);
+        if (real != size) {
+                printf("failed to read %d bytes, exiting\n");
+                exit(1);
+        }
+        file_offset += real;
+#endif
+}
+
+void
+init_read() {
+}