diff options
Diffstat (limited to 'util/cbfstool/cbfs_image.c')
| -rw-r--r-- | util/cbfstool/cbfs_image.c | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/util/cbfstool/cbfs_image.c b/util/cbfstool/cbfs_image.c index 7d08b43c79..cc4460c66b 100644 --- a/util/cbfstool/cbfs_image.c +++ b/util/cbfstool/cbfs_image.c @@ -98,6 +98,13 @@ uint32_t get_cbfs_compression(const char *name, uint32_t unknown) { return lookup_type_by_name(types_cbfs_compression, name, unknown); } +/* CBFS image */ + +static int cbfs_calculate_file_header_size(const char *name) { + return (sizeof(struct cbfs_file) + + align_up(strlen(name) + 1, CBFS_FILENAME_ALIGN)); +} + int cbfs_image_from_file(struct cbfs_image *image, const char *filename) { if (buffer_from_file(&image->buffer, filename) != 0) return -1; @@ -166,6 +173,29 @@ int cbfs_export_entry(struct cbfs_image *image, const char *entry_name, return 0; } +int cbfs_remove_entry(struct cbfs_image *image, const char *name) { + struct cbfs_file *entry, *next; + size_t len; + entry = cbfs_get_entry(image, name); + if (!entry) { + ERROR("CBFS file %s not found.\n", name); + return -1; + } + next = cbfs_find_next_entry(image, entry); + assert(next); + DEBUG("cbfs_remove_entry: Removed %s @ 0x%x\n", + CBFS_NAME(entry), cbfs_get_entry_addr(image, entry)); + entry->type = htonl(CBFS_COMPONENT_DELETED); + len = (cbfs_get_entry_addr(image, next) - + cbfs_get_entry_addr(image, entry)); + entry->offset = htonl(cbfs_calculate_file_header_size("")); + entry->len = htonl(len - ntohl(entry->offset)); + memset(CBFS_NAME(entry), 0, ntohl(entry->offset) - sizeof(*entry)); + memset(CBFS_SUBHEADER(entry), CBFS_CONTENT_DEFAULT_VALUE, + ntohl(entry->len)); + return 0; +} + int cbfs_print_header_info(struct cbfs_image *image) { char *name = strdup(image->buffer.name); assert(image && image->header); |