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author | Ethan Yonker <dees_troy@teamw.in> | 2015-10-09 18:15:26 +0200 |
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committer | Ethan Yonker <dees_troy@teamw.in> | 2015-10-09 18:15:29 +0200 |
commit | c798c9cd2486e0ff83776002c74f113677b10a84 (patch) | |
tree | d128a80cbc58e63a622fda2774e727611f9d2cd4 /applypatch/imgdiff.c | |
parent | Add TW_IGNORE_ABS_MT_TRACKING_ID (diff) | |
parent | merge in mnc-release history after reset to mnc-dev (diff) | |
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Diffstat (limited to 'applypatch/imgdiff.c')
-rw-r--r-- | applypatch/imgdiff.c | 9 |
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; |