diff options
| -rw-r--r-- | util/cbfstool/cbfs_image.c | 17 | ||||
| -rw-r--r-- | util/cbfstool/cbfs_image.h | 5 |
2 files changed, 20 insertions, 2 deletions
diff --git a/util/cbfstool/cbfs_image.c b/util/cbfstool/cbfs_image.c index b0c3080d80..ddc9cf5366 100644 --- a/util/cbfstool/cbfs_image.c +++ b/util/cbfstool/cbfs_image.c @@ -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; } diff --git a/util/cbfstool/cbfs_image.h b/util/cbfstool/cbfs_image.h index ad999e357d..432ea72cea 100644 --- a/util/cbfstool/cbfs_image.h +++ b/util/cbfstool/cbfs_image.h @@ -99,6 +99,11 @@ int cbfs_add_entry(struct cbfs_image *image, struct buffer *buffer, /* Removes an entry from CBFS image. Returns 0 on success, otherwise non-zero. */ int cbfs_remove_entry(struct cbfs_image *image, const char *name); +/* Create a new cbfs file header structure to work with. + Returns newly allocated memory that the caller needs to free after use. */ +struct cbfs_file *cbfs_create_file_header(int type, size_t len, + const char *name); + /* Initializes a new empty (type = NULL) entry with size and name in CBFS image. * Returns 0 on success, otherwise (ex, not found) non-zero. */ int cbfs_create_empty_entry(struct cbfs_file *entry, int type, |