diff options
| author | David Oberhollenzer <david.oberhollenzer@sigma-star.at> | 2019-08-05 23:55:04 +0200 |
|---|---|---|
| committer | David Oberhollenzer <david.oberhollenzer@sigma-star.at> | 2019-08-07 10:41:49 +0200 |
| commit | 1fff8f3a1326bd82f8140a61d969994e635834fe (patch) | |
| tree | 817c148152a38acd0b1110d1e3d55788047d078c /include | |
| parent | ae4193162e1607b75ef34e4e9a33e2b54f03af8a (diff) | |
Add pread(2) like function to data_reader
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
Diffstat (limited to 'include')
| -rw-r--r-- | include/data_reader.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/include/data_reader.h b/include/data_reader.h index c6d85f1..51bfff3 100644 --- a/include/data_reader.h +++ b/include/data_reader.h @@ -41,4 +41,14 @@ void data_reader_destroy(data_reader_t *data); int data_reader_dump_file(data_reader_t *data, file_info_t *fi, int outfd, bool allow_sparse); +/* + Read a chunk of data from a file. Starting from 'offset' into the + uncompressed file, read 'size' bytes into 'buffer'. + + Returns the number of bytes read, 0 if EOF, -1 on failure. Prints an + error message to stderr on failure. + */ +ssize_t data_reader_read(data_reader_t *data, file_info_t *fi, + uint64_t offset, void *buffer, size_t size); + #endif /* DATA_READER_H */ |