From d771acbed0695ef5ec40ac930be200b3393cc8e0 Mon Sep 17 00:00:00 2001
From: Koushik Dutta <koushd@gmail.com>
Date: Thu, 11 Nov 2010 00:00:45 -0800
Subject: [PATCH] Modify apply_patch to fail if trying to patch mtd on non-mtd
 devices.

Change-Id: I09c5bb5d12d838fdc4c4c6eb380021c9b3f3e33e
---
 Android.mk              |  1 +
 applypatch/applypatch.c | 11 +++++++++++
 2 files changed, 12 insertions(+)

diff --git a/Android.mk b/Android.mk
index 817bef8..ce17ff3 100644
--- a/Android.mk
+++ b/Android.mk
@@ -78,6 +78,7 @@ ifdef BOARD_USES_BMLUTILS
 else ifdef BOARD_USES_MMCUTILS
 	BOARD_FLASH_LIBRARY := libmmcutils
 else
+    LOCAL_CFLAGS += -DBOARD_USES_MTDUTILS
 	BOARD_FLASH_LIBRARY := libmtdutils
 endif
 
diff --git a/applypatch/applypatch.c b/applypatch/applypatch.c
index 99d3661..a0493e0 100644
--- a/applypatch/applypatch.c
+++ b/applypatch/applypatch.c
@@ -114,6 +114,7 @@ void FreeFileContents(FileContents* file) {
 // hash of the data, and we'll do the load expecting to find one of
 // those hashes.
 int LoadMTDContents(const char* filename, FileContents* file) {
+#ifdef BOARD_USES_MTDUTILS
     char* copy = strdup(filename);
     const char* magic = strtok(copy, ":");
     if (strcmp(magic, "MTD") != 0) {
@@ -256,6 +257,10 @@ int LoadMTDContents(const char* filename, FileContents* file) {
     free(sha1sum);
 
     return 0;
+#else
+    printf("mtd utils not supported.\n");
+    return -1;
+#endif
 }
 
 
@@ -296,6 +301,7 @@ int SaveFileContents(const char* filename, FileContents file) {
 // "MTD:<partition>[:...]".  Return 0 on success.
 int WriteToMTDPartition(unsigned char* data, size_t len,
                         const char* target_mtd) {
+#ifdef BOARD_USES_MTDUTILS
     char* partition = strchr(target_mtd, ':');
     if (partition == NULL) {
         printf("bad MTD target name \"%s\"\n", target_mtd);
@@ -348,6 +354,11 @@ int WriteToMTDPartition(unsigned char* data, size_t len,
 
     free(partition);
     return 0;
+#else
+    printf("mtd utils not supported.\n");
+    return -1;
+#endif
+
 }