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* grub-core/fs/squash4.c (xz_decompress): Fix return value.

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(direct_read): Use correct compressed size.
	(grub_squash_read_data): Likewise.
This commit is contained in:
Vladimir 'phcoder' Serbinenko 2012-01-27 13:09:57 +01:00
parent ca1dacea3c
commit f6e4ea709f
2 changed files with 16 additions and 8 deletions
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8
ChangeLog
View file

@ -1,4 +1,10 @@
2012-01-25 Vladimir Serbinenko <phcoder@gmail.com>
2012-01-26 Vladimir Serbinenko <phcoder@gmail.com>
* grub-core/fs/squash4.c (xz_decompress): Fix return value.
(direct_read): Use correct compressed size.
(grub_squash_read_data): Likewise.
2012-01-26 Vladimir Serbinenko <phcoder@gmail.com>
* docs/grub.texi (Platform limitations): New section.
(Platform-specific operations): Likewise.

16
grub-core/fs/squash4.c
View file

@ -317,7 +317,7 @@ static grub_ssize_t
xz_decompress (char *inbuf, grub_size_t insize, grub_off_t off,
char *outbuf, grub_size_t len, struct grub_squash_data *data)
{
grub_size_t ret;
grub_size_t ret = 0;
grub_off_t pos = 0;
struct xz_buf buf;
@ -778,7 +778,9 @@ direct_read (struct grub_squash_data *data,
& grub_cpu_to_le32_compile_time (SQUASH_BLOCK_UNCOMPRESSED)))
{
char *block;
block = grub_malloc (data->blksz);
grub_size_t csize;
csize = grub_le_to_cpu32 (ino->block_sizes[i]) & ~SQUASH_BLOCK_FLAGS;
block = grub_malloc (csize);
if (!block)
return -1;
err = grub_disk_read (data->disk,
@ -786,13 +788,13 @@ direct_read (struct grub_squash_data *data,
>> GRUB_DISK_SECTOR_BITS,
(ino->cumulated_block_sizes[i] + a)
& (GRUB_DISK_SECTOR_SIZE - 1),
data->blksz, block);
csize, block);
if (err)
{
grub_free (block);
return -1;
}
if (data->decompress (block, data->blksz, boff, buf, read, data)
if (data->decompress (block, csize, boff, buf, read, data)
!= (grub_ssize_t) read)
{
grub_free (block);
@ -862,19 +864,19 @@ grub_squash_read_data (struct grub_squash_data *data,
if (compressed)
{
char *block;
block = grub_malloc (data->blksz);
block = grub_malloc (frag.size);
if (!block)
return -1;
err = grub_disk_read (data->disk,
a >> GRUB_DISK_SECTOR_BITS,
a & (GRUB_DISK_SECTOR_SIZE - 1),
data->blksz, block);
frag.size, block);
if (err)
{
grub_free (block);
return -1;
}
if (data->decompress (block, data->blksz, b, buf, len, data)
if (data->decompress (block, frag.size, b, buf, len, data)
!= (grub_ssize_t) len)
{
grub_free (block);