1 files changed, 35 insertions, 0 deletions
diff --git a/bmlutils/bmlwrite.c b/bmlutils/bmlwrite.c
new file mode 100644
index 0000000..74860c6
--- /dev/null
+++ b/bmlutils/bmlwrite.c
@@ -0,0 +1,35 @@
+#include <stdio.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <string.h>
+
+#define BML_UNLOCK_ALL 0x8A29 ///< unlock all partition RO -> RW
+
+int main(int argc, char** argv) {
+    char buf[4096];
+    int dstfd, srcfd, bytes_read, bytes_written, total_read = 0;
+    if (argc != 3)
+        return 1;
+    if (argv[1][0] == '-' && argv[1][1] == 0)
+        srcfd = 0;
+    else {
+        srcfd = open(argv[1], O_RDONLY | O_LARGEFILE);
+        if (srcfd < 0)
+            return 2;
+    }
+    dstfd = open(argv[2], O_RDWR | O_LARGEFILE);
+    if (dstfd < 0)
+        return 3;
+    if (ioctl(dstfd, BML_UNLOCK_ALL, 0))
+        return 4;
+    do {
+        total_read += bytes_read = read(srcfd, buf, 4096);
+        if (!bytes_read)
+            break;
+        if (bytes_read < 4096)
+            memset(&buf[bytes_read], 0, 4096 - bytes_read);
+        if (write(dstfd, buf, 4096) < 4096)
+            return 5;
+    } while(bytes_read == 4096);
+    return 0;
+}