From 427fff4320df478cc0d7a6fa5d68e08d70a844b8 Mon Sep 17 00:00:00 2001
From: Dave Chapman <dave@dchapman.com>
Date: Fri, 13 Apr 2007 23:28:20 +0000
Subject: Add -rfb option for reading the main firmware (OSOS image) as a
 binary file.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@13148 a1c6a512-1295-4272-9138-f99709370657
---
 rbutil/ipodpatcher/ipodpatcher.c | 25 ++++++++++++++-----------
 1 file changed, 14 insertions(+), 11 deletions(-)

(limited to 'rbutil/ipodpatcher/ipodpatcher.c')

diff --git a/rbutil/ipodpatcher/ipodpatcher.c b/rbutil/ipodpatcher/ipodpatcher.c
index 6fcf0c8c27..331c7f0322 100644
--- a/rbutil/ipodpatcher/ipodpatcher.c
+++ b/rbutil/ipodpatcher/ipodpatcher.c
@@ -885,7 +885,7 @@ int write_firmware(struct ipod_t* ipod, char* filename, int type)
     return 0;
 }
 
-int read_firmware(struct ipod_t* ipod, char* filename)
+int read_firmware(struct ipod_t* ipod, char* filename, int type)
 {
     int length;
     int i;
@@ -921,22 +921,25 @@ int read_firmware(struct ipod_t* ipod, char* filename)
         return -1;
     }
 
-    chksum = ipod->modelnum;
-    for (i = 0; i < length; i++) {
-         /* add 8 unsigned bits but keep a 32 bit sum */
-         chksum += sectorbuf[i];
-    }
-
-    int2be(chksum,header);
-    memcpy(header+4, ipod->modelname,4);
-
     outfile = open(filename,O_CREAT|O_TRUNC|O_WRONLY|O_BINARY,0666);
     if (outfile < 0) {
         fprintf(stderr,"[ERR]  Couldn't open file %s\n",filename);
         return -1;
     }
 
-    write(outfile,header,8);
+    if (type == FILETYPE_DOT_IPOD) {
+        chksum = ipod->modelnum;
+        for (i = 0; i < length; i++) {
+            /* add 8 unsigned bits but keep a 32 bit sum */
+            chksum += sectorbuf[i];
+        }
+
+        int2be(chksum,header);
+        memcpy(header+4, ipod->modelname,4);
+
+        write(outfile,header,8);
+    }
+
     write(outfile,sectorbuf,length);
     close(outfile);
 
-- 
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