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cbfstool: factor out creating a cbfs file header

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We will want to create headers that live outside the final image at some point
(eg. to build the file before we even know where to place it).

Change-Id: Ie4c0323df8d5be955aec3621b75309e8f11fae49
Signed-off-by: Patrick Georgi <pgeorgi@google.com>
Reviewed-on: http://review.coreboot.org/11219
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
This commit is contained in:
Patrick Georgi
2015-08-12 09:20:11 +02:00
parent edf25d9076
commit 57edf16be5
2 changed files with 20 additions and 2 deletions
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17
util/cbfstool/cbfs_image.c
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@ -1020,10 +1020,14 @@ int cbfs_is_valid_entry(struct cbfs_image *image, struct cbfs_file *entry)
strlen(CBFS_FILE_MAGIC));
}
int cbfs_create_empty_entry(struct cbfs_file *entry, int type,
struct cbfs_file *cbfs_create_file_header(int type,
size_t len, const char *name)
{
memset(entry, CBFS_CONTENT_DEFAULT_VALUE, sizeof(*entry));
// assume that there won't be file names of ~1000 bytes
const int bufsize = 1024;
struct cbfs_file *entry = malloc(bufsize);
memset(entry, CBFS_CONTENT_DEFAULT_VALUE, bufsize);
memcpy(entry->magic, CBFS_FILE_MAGIC, sizeof(entry->magic));
entry->type = htonl(type);
entry->len = htonl(len);
@ -1031,6 +1035,15 @@ int cbfs_create_empty_entry(struct cbfs_file *entry, int type,
entry->offset = htonl(cbfs_calculate_file_header_size(name));
memset(entry->filename, 0, ntohl(entry->offset) - sizeof(*entry));
strcpy(entry->filename, name);
return entry;
}
int cbfs_create_empty_entry(struct cbfs_file *entry, int type,
size_t len, const char *name)
{
struct cbfs_file *tmp = cbfs_create_file_header(type, len, name);
memcpy(entry, tmp, ntohl(tmp->offset));
free(tmp);
memset(CBFS_SUBHEADER(entry), CBFS_CONTENT_DEFAULT_VALUE, len);
return 0;
}