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| author | Joris Lijssens <joris.lijssens@gmail.com> | 2016-06-17 10:46:58 +0200 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2016-06-24 17:23:11 -0400 |
| commit | a2cfc8d5935efd445d9f9b258383e2a42f83ef6e (patch) | |
| tree | a746323ae52ed1c53f90282c3d02b5c79a399ecf /lib | |
| parent | 96044745cb8c086d47215f4aa7b4defb1d1fec57 (diff) | |
| download | u-boot-a2cfc8d5935efd445d9f9b258383e2a42f83ef6e.zip u-boot-a2cfc8d5935efd445d9f9b258383e2a42f83ef6e.tar.gz u-boot-a2cfc8d5935efd445d9f9b258383e2a42f83ef6e.tar.bz2 | |
lib/lzo: bugfix when input data is not compressed
When the input data is not compressed at all,
lzo1x_decompress_safe will fail, so call memcpy()
instead.
Signed-off-by: Joris Lijssens <joris.lijssens@gmail.com>
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/lzo/lzo1x_decompress.c | 25 |
1 files changed, 16 insertions, 9 deletions
diff --git a/lib/lzo/lzo1x_decompress.c b/lib/lzo/lzo1x_decompress.c index ebdf10b..ccc90b8 100644 --- a/lib/lzo/lzo1x_decompress.c +++ b/lib/lzo/lzo1x_decompress.c @@ -98,18 +98,25 @@ int lzop_decompress(const unsigned char *src, size_t src_len, if (dlen > remaining) return LZO_E_OUTPUT_OVERRUN; - /* decompress */ - tmp = dlen; - r = lzo1x_decompress_safe((u8 *) src, slen, dst, &tmp); + /* When the input data is not compressed at all, + * lzo1x_decompress_safe will fail, so call memcpy() + * instead */ + if (dlen == slen) { + memcpy(dst, src, slen); + } else { + /* decompress */ + tmp = dlen; + r = lzo1x_decompress_safe((u8 *)src, slen, dst, &tmp); + + if (r != LZO_E_OK) { + *dst_len = dst - start; + return r; + } - if (r != LZO_E_OK) { - *dst_len = dst - start; - return r; + if (dlen != tmp) + return LZO_E_ERROR; } - if (dlen != tmp) - return LZO_E_ERROR; - src += slen; dst += dlen; remaining -= dlen; |