Add "ipod" mode to bin2c.

ipod2c is identical to bin2c except it skipping the header of the input files.
Add this behaviour as option to bin2c to be able of using bin2c instead of
ipod2c.

Change-Id: I71afcaca6f2f6b0fce4c6aa3dff6be5bb205f384

1 files changed, 28 insertions, 6 deletions

diff --git a/rbutil/tools/bin2c.c b/rbutil/tools/bin2c.c
index 36e2451..4600746 100644
--- a/rbutil/tools/bin2c.c
+++ b/rbutil/tools/bin2c.c
@@ -5,7 +5,6 @@
  *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
  *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
  *                     \/            \/     \/    \/            \/
- * $Id$
  *
  * Copyright (C) 2007 Dave Chapman
  *
@@ -40,6 +39,13 @@
 #define O_BINARY 0
 #endif
 
+static void usage(void)
+{
+    fprintf(stderr, "bin2c [options] infile cfile\n");
+    fprintf(stderr, "       -i    ipod mode\n");
+}
+
+
 static off_t filesize(int fd)
 {
     struct stat buf;
@@ -116,14 +122,25 @@ int main (int argc, char* argv[])
     unsigned char* buf;
     int len;
     int n;
+    int skip = 0;
+    int opts = 0;
+
 
-    if (argc != 3) {
-        fprintf(stderr,"Usage: bin2c file cname\n");
+    if(argc < 2) {
+        usage();
+        return 0;
+    }
+    if(strcmp(argv[1], "-i") == 0) {
+        skip = 8;
+        opts++;
+    }
+    if (argc < opts + 3) {
+        usage();
         return 0;
     }
 
-    infile=argv[1];
-    cname=argv[2];
+    infile=argv[opts + 1];
+    cname=argv[opts + 2];
 
     fd = open(infile,O_RDONLY|O_BINARY);
     if (fd < 0) {
@@ -131,7 +148,12 @@ int main (int argc, char* argv[])
         return 0;
     }
 
-    len = filesize(fd);
+    len = filesize(fd) - skip;
+    n = lseek(fd, skip, SEEK_SET);
+    if (n != skip) {
+        fprintf(stderr,"Seek failed\n");
+        return 0;
+    }
 
     buf = malloc(len);
     n = read(fd,buf,len);