From 08a27c1df7e269766ca0f583047884fa127eb5ec Mon Sep 17 00:00:00 2001
From: Dominik Riebeling <Dominik.Riebeling@gmail.com>
Date: Wed, 16 Jul 2008 18:46:37 +0000
Subject: Let sansa_list_images() return the number of mi4 images found.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@18074 a1c6a512-1295-4272-9138-f99709370657
---
 rbutil/sansapatcher/sansapatcher.c | 12 +++++++++---
 rbutil/sansapatcher/sansapatcher.h |  2 +-
 2 files changed, 10 insertions(+), 4 deletions(-)

diff --git a/rbutil/sansapatcher/sansapatcher.c b/rbutil/sansapatcher/sansapatcher.c
index 966cfb7033..845333bd76 100644
--- a/rbutil/sansapatcher/sansapatcher.c
+++ b/rbutil/sansapatcher/sansapatcher.c
@@ -800,28 +800,34 @@ int sansa_delete_bootloader(struct sansa_t* sansa)
     return 0;
 }
 
-void sansa_list_images(struct sansa_t* sansa)
+/** List number of MI4 images on the player, return number.
+ */
+int sansa_list_images(struct sansa_t* sansa)
 {
     struct mi4header_t mi4header;
     loff_t ppmi_length;
+    int num = 0;
 
     /* Check Main firmware header */
     if (sansa_seek_and_read(sansa, sansa->start+PPMI_OFFSET, sansa_sectorbuf, 0x200) < 0) {
-        return;
+        return 0;
     }
 
     ppmi_length = le2int(sansa_sectorbuf+4);
 
     printf("[INFO] Image 1 - %llu bytes\n",ppmi_length);
+    num = 1;
 
     /* Look for an original firmware after the first image */
     if (sansa_seek_and_read(sansa, sansa->start + PPMI_OFFSET + 0x200 + ppmi_length, sansa_sectorbuf, 512) < 0) {
-        return;
+        return 0;
     }
 
     if (get_mi4header(sansa_sectorbuf,&mi4header)==0) {
         printf("[INFO] Image 2 - %d bytes\n",mi4header.mi4size);
+        num = 2;
     }
+    return num;
 }
 
 int sansa_update_of(struct sansa_t* sansa, const char* filename)
diff --git a/rbutil/sansapatcher/sansapatcher.h b/rbutil/sansapatcher/sansapatcher.h
index 170646b1d8..7416e1928b 100644
--- a/rbutil/sansapatcher/sansapatcher.h
+++ b/rbutil/sansapatcher/sansapatcher.h
@@ -45,7 +45,7 @@ int sansa_add_bootloader(struct sansa_t* sansa, const char* filename, int type);
 int sansa_delete_bootloader(struct sansa_t* sansa);
 int sansa_update_of(struct sansa_t* sansa,const char* filename);
 int sansa_update_ppbl(struct sansa_t* sansa,const char* filename);
-void sansa_list_images(struct sansa_t* sansa);
+int sansa_list_images(struct sansa_t* sansa);
 
 #ifdef __cplusplus
 }
-- 
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