svn_stringbuf_t *
svn_fs_fs__unparse_representation(representation_t *rep,
int format,
svn_boolean_t mutable_rep_truncated,
apr_pool_t *result_pool,
apr_pool_t *scratch_pool)
{
char buffer[SVN_INT64_BUFFER_SIZE];
if (svn_fs_fs__id_txn_used(&rep->txn_id) && mutable_rep_truncated)
return svn_stringbuf_ncreate("-1", 2, result_pool);
if (format < SVN_FS_FS__MIN_REP_SHARING_FORMAT || !rep->has_sha1)
return svn_stringbuf_createf
(result_pool, "%ld %" APR_UINT64_T_FMT " %" SVN_FILESIZE_T_FMT
" %" SVN_FILESIZE_T_FMT " %s",
rep->revision, rep->item_index, rep->size,
rep->expanded_size,
format_digest(rep->md5_digest, svn_checksum_md5, FALSE,
scratch_pool));
svn__ui64tobase36(buffer, rep->uniquifier.number);
return svn_stringbuf_createf
(result_pool, "%ld %" APR_UINT64_T_FMT " %" SVN_FILESIZE_T_FMT
" %" SVN_FILESIZE_T_FMT " %s %s %s/_%s",
rep->revision, rep->item_index, rep->size,
rep->expanded_size,
format_digest(rep->md5_digest, svn_checksum_md5,
FALSE, scratch_pool),
format_digest(rep->sha1_digest, svn_checksum_sha1,
!rep->has_sha1, scratch_pool),
svn_fs_fs__id_txn_unparse(&rep->uniquifier.noderev_txn_id,
scratch_pool),
buffer);
}
svn_stringbuf_t *
svn_fs_x__unparse_representation(svn_fs_x__representation_t *rep,
svn_boolean_t mutable_rep_truncated,
apr_pool_t *result_pool,
apr_pool_t *scratch_pool)
{
if (!rep->has_sha1)
return svn_stringbuf_createf
(result_pool,
"%" APR_INT64_T_FMT " %" APR_UINT64_T_FMT " %" SVN_FILESIZE_T_FMT
" %" SVN_FILESIZE_T_FMT " %s",
rep->id.change_set, rep->id.number, rep->size,
rep->expanded_size,
format_digest(rep->md5_digest, svn_checksum_md5, FALSE,
scratch_pool));
return svn_stringbuf_createf
(result_pool,
"%" APR_INT64_T_FMT " %" APR_UINT64_T_FMT " %" SVN_FILESIZE_T_FMT
" %" SVN_FILESIZE_T_FMT " %s %s",
rep->id.change_set, rep->id.number, rep->size,
rep->expanded_size,
format_digest(rep->md5_digest, svn_checksum_md5,
FALSE, scratch_pool),
format_digest(rep->sha1_digest, svn_checksum_sha1,
!rep->has_sha1, scratch_pool));
}
char* calculate_digest(int fd) {
unsigned char md[CC_SHA1_DIGEST_LENGTH];
CC_SHA1_CTX c;
CC_SHA1_Init(&c);
memset(md, 0, CC_SHA1_DIGEST_LENGTH);
ssize_t len;
const unsigned int blocklen = 8192;
unsigned char* block = (unsigned char*)malloc(blocklen);
if (!block) {
errno = ENOMEM;
return NULL;
}
while(1) {
len = read(fd, block, blocklen);
if (len == 0) { close(fd); break; }
if ((len < 0) && (errno == EINTR)) continue;
if (len < 0) { close(fd); return NULL; }
CC_SHA1_Update(&c, block, (CC_LONG)len);
}
CC_SHA1_Final(md, &c);
free(block);
return format_digest(md);
}