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-rw-r--r--tools/genext2fs/patches/400-byteswap_fix.patch44
1 files changed, 44 insertions, 0 deletions
diff --git a/tools/genext2fs/patches/400-byteswap_fix.patch b/tools/genext2fs/patches/400-byteswap_fix.patch
new file mode 100644
index 0000000000..7b3c00b5ee
--- /dev/null
+++ b/tools/genext2fs/patches/400-byteswap_fix.patch
@@ -0,0 +1,44 @@
+Index: genext2fs/genext2fs.c
+===================================================================
+--- genext2fs.orig/genext2fs.c 2011-11-29 17:36:06.000000000 +0100
++++ genext2fs/genext2fs.c 2011-11-29 17:37:37.000000000 +0100
+@@ -1779,7 +1779,8 @@
+ assert(nod->i_block[EXT2_DIND_BLOCK] != 0);
+ for(i = 0; i < BLOCKSIZE/4; i++)
+ if(nblk > EXT2_IND_BLOCK + BLOCKSIZE/4 + (BLOCKSIZE/4)*i )
+- swap_block(get_blk(fs, ((uint32*)get_blk(fs, nod->i_block[EXT2_DIND_BLOCK]))[i]));
++ if (((uint32*)get_blk(fs, nod->i_block[EXT2_DIND_BLOCK]))[i])
++ swap_block(get_blk(fs, ((uint32*)get_blk(fs, nod->i_block[EXT2_DIND_BLOCK]))[i]));
+ swap_block(get_blk(fs, nod->i_block[EXT2_DIND_BLOCK]));
+ if(nblk <= EXT2_IND_BLOCK + BLOCKSIZE/4 + BLOCKSIZE/4 * BLOCKSIZE/4)
+ return;
+@@ -1792,7 +1793,8 @@
+ (BLOCKSIZE/4)*(BLOCKSIZE/4) +
+ i*(BLOCKSIZE/4)*(BLOCKSIZE/4) +
+ j*(BLOCKSIZE/4)) )
+- swap_block(get_blk(fs,b2[j]));
++ if (b2[j])
++ swap_block(get_blk(fs,b2[j]));
+ else {
+ done = 1;
+ break;
+@@ -1825,7 +1827,8 @@
+ swap_block(get_blk(fs, nod->i_block[EXT2_DIND_BLOCK]));
+ for(i = 0; i < BLOCKSIZE/4; i++)
+ if(nblk > EXT2_IND_BLOCK + BLOCKSIZE/4 + (BLOCKSIZE/4)*i )
+- swap_block(get_blk(fs, ((uint32*)get_blk(fs, nod->i_block[EXT2_DIND_BLOCK]))[i]));
++ if (((uint32*)get_blk(fs, nod->i_block[EXT2_DIND_BLOCK]))[i])
++ swap_block(get_blk(fs, ((uint32*)get_blk(fs, nod->i_block[EXT2_DIND_BLOCK]))[i]));
+ if(nblk <= EXT2_IND_BLOCK + BLOCKSIZE/4 + BLOCKSIZE/4 * BLOCKSIZE/4)
+ return;
+ /* Adding support for triple indirection */
+@@ -1839,7 +1842,8 @@
+ (BLOCKSIZE/4)*(BLOCKSIZE/4) +
+ i*(BLOCKSIZE/4)*(BLOCKSIZE/4) +
+ j*(BLOCKSIZE/4)) )
+- swap_block(get_blk(fs,b2[j]));
++ if (b2[j])
++ swap_block(get_blk(fs,b2[j]));
+ else {
+ done = 1;
+ break;