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authorJohan Redestig <johan.redestig@sonymobile.com>2015-04-14 21:20:06 +0200
committerJohan Redestig <johan.redestig@sonymobile.com>2015-04-15 13:09:54 +0200
commitc68bd34dc8d43f685c1f304a6cd9917c18c690aa (patch)
treedfbce3d59fd43cbf786563e38c1cc9b6996485da /applypatch
parentMerge "Add missing \n after "Mounting /system." message." (diff)
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Diffstat (limited to 'applypatch')
-rw-r--r--applypatch/imgdiff.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/applypatch/imgdiff.c b/applypatch/imgdiff.c
index 05c4f250f..3bac8be91 100644
--- a/applypatch/imgdiff.c
+++ b/applypatch/imgdiff.c
@@ -408,6 +408,7 @@ unsigned char* ReadImage(const char* filename,
p[2] == 0x08 && // deflate compression
p[3] == 0x00) { // no header flags
// 'pos' is the offset of the start of a gzip chunk.
+ size_t chunk_offset = pos;
*num_chunks += 3;
*chunks = realloc(*chunks, *num_chunks * sizeof(ImageChunk));
@@ -453,6 +454,14 @@ unsigned char* ReadImage(const char* filename,
strm.avail_out = allocated - curr->len;
strm.next_out = curr->data + curr->len;
ret = inflate(&strm, Z_NO_FLUSH);
+ if (ret < 0) {
+ printf("Error: inflate failed [%s] at file offset [%zu]\n"
+ "imgdiff only supports gzip kernel compression,"
+ " did you try CONFIG_KERNEL_LZO?\n",
+ strm.msg, chunk_offset);
+ free(img);
+ return NULL;
+ }
curr->len = allocated - strm.avail_out;
if (strm.avail_out == 0) {
allocated *= 2;