const char *zip_get_name(ar_archive *ar)
{
ar_archive_zip *zip = (ar_archive_zip *)ar;
if (!zip->entry.name) {
struct zip_entry entry;
char *name;
if (zip->dir.end_offset >= 0) {
if (!ar_seek(ar->stream, ar->entry_offset, SEEK_SET))
return NULL;
if (!zip_parse_directory_entry(zip, &entry))
return NULL;
if (!ar_seek(ar->stream, ar->entry_offset + ZIP_DIR_ENTRY_FIXED_SIZE, SEEK_SET))
return NULL;
}
else {
if (!ar_seek(ar->stream, zip->entry.offset, SEEK_SET))
return NULL;
if (!zip_parse_local_file_entry(zip, &entry))
return NULL;
if (!ar_seek(ar->stream, ar->entry_offset + ZIP_LOCAL_ENTRY_FIXED_SIZE, SEEK_SET))
return NULL;
}
name = malloc(entry.namelen + 1);
if (!name || ar_read(ar->stream, name, entry.namelen) != entry.namelen) {
free(name);
return NULL;
}
name[entry.namelen] = '\0';
if ((entry.flags & (1 << 11))) {
zip->entry.name = name;
}
else {
zip->entry.name = ar_conv_dos_to_utf8(name);
free(name);
}
/* normalize path separators */
if (zip->entry.name) {
char *p = zip->entry.name;
while ((p = strchr(p, '\\')) != NULL) {
*p = '/';
}
}
}
return zip->entry.name;
}
static bool tar_parse_entry(ar_archive *ar, off64_t offset)
{
ar_archive_tar *tar = (ar_archive_tar *)ar;
char *longname;
if (!ar_seek(ar->stream, offset, SEEK_SET)) {
warn("Couldn't seek to offset %" PRIi64, offset);
return false;
}
if (!tar_parse_header(tar)) {
warn("Invalid tar header data @%" PRIi64, offset);
return false;
}
if (!tar->entry.checksum) {
ar->at_eof = true;
return false;
}
ar->entry_offset = offset;
ar->entry_offset_next = offset + TAR_BLOCK_SIZE + (tar->entry.filesize + TAR_BLOCK_SIZE - 1) / TAR_BLOCK_SIZE * TAR_BLOCK_SIZE;
ar->entry_size_uncompressed = tar->entry.filesize;
ar->entry_filetime = tar->entry.mtime;
tar->bytes_done = 0;
switch (tar->entry.filetype) {
case TYPE_FILE:
case TYPE_FILE_OLD:
return true;
case TYPE_DIRECTORY:
log("Skipping directory entry \"%s\"", tar_get_name(ar));
return tar_parse_entry(ar, ar->entry_offset_next);
case TYPE_LONGNAME:
longname = malloc(tar->entry.filesize + 1);
if (!longname) {
log("Falling back to the short filename on OOM");
return tar_parse_entry(ar, ar->entry_offset_next);
}
if (!ar_entry_uncompress(ar, longname, tar->entry.filesize)) {
free(longname);
return false;
}
longname[tar->entry.filesize] = '\0';
if (!tar_parse_entry(ar, ar->entry_offset_next)) {
free(longname);
return false;
}
ar->entry_offset = offset;
/* name could be in any encoding, assume UTF-8 or whatever (DOS) */
if (ar_is_valid_utf8(longname)) {
tar->entry.name = longname;
}
else {
tar->entry.name = ar_conv_dos_to_utf8(longname);
free(longname);
}
return true;
default:
warn("Unknown entry type '%c'", tar->entry.filetype);
return true;
}
}
