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cbfstool: factor out parsing compression file attributes 

cbfstool extract also needs it.

Change-Id: I8302bb18c5f797eb0a43ec4e4269790f3d49a896
Signed-off-by: Patrick Georgi <patrick@georgi-clan.de>
Reviewed-on: http://review.coreboot.org/11361
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
This commit is contained in:
Patrick Georgi 2015-08-26 12:23:26 +02:00 committed by Patrick Georgi
parent c82725c5b9
commit a71c83fa5c
1 changed files with 22 additions and 11 deletions
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33
util/cbfstool/cbfs_image.c
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@ -178,6 +178,26 @@ static void cbfs_decode_payload_segment(struct cbfs_payload_segment *output,
assert(seg.size == 0);
}
static int cbfs_file_get_compression_info(struct cbfs_file *entry,
uint32_t *decompressed_size)
{
unsigned int compression = CBFS_COMPRESS_NONE;
*decompressed_size = ntohl(entry->len);
for (struct cbfs_file_attribute *attr = cbfs_file_first_attr(entry);
attr != NULL;
attr = cbfs_file_next_attr(entry, attr)) {
if (ntohl(attr->tag) == CBFS_FILE_ATTR_TAG_COMPRESSION) {
struct cbfs_file_attr_compression *ac =
(struct cbfs_file_attr_compression *)attr;
compression = ntohl(ac->compression);
if (decompressed_size)
*decompressed_size =
ntohl(ac->decompressed_size);
}
}
return compression;
}
void cbfs_get_header(struct cbfs_header *header, void *src)
{
struct buffer outheader;
@ -777,18 +797,9 @@ int cbfs_print_entry_info(struct cbfs_image *image, struct cbfs_file *entry,
if (!fp)
fp = stdout;
unsigned int compression = CBFS_COMPRESS_NONE;
unsigned int decompressed_size = 0;
for (struct cbfs_file_attribute *attr = cbfs_file_first_attr(entry);
attr != NULL;
attr = cbfs_file_next_attr(entry, attr)) {
if (ntohl(attr->tag) == CBFS_FILE_ATTR_TAG_COMPRESSION) {
struct cbfs_file_attr_compression *ac =
(struct cbfs_file_attr_compression *)attr;
compression = ntohl(ac->compression);
decompressed_size = ntohl(ac->decompressed_size);
}
}
unsigned int compression = cbfs_file_get_compression_info(entry,
&decompressed_size);
if (compression == CBFS_COMPRESS_NONE) {
fprintf(fp, "%-30s 0x%-8x %-12s %d\n",