NAME¶
zip_source_zip - create data source from zip file
LIBRARY¶
libzip (-lzip)
SYNOPSIS¶
#include <zip.h>
struct zip_source *
zip_source_zip(
struct zip *archive,
struct zip
*srcarchive,
zip_uint64_t srcidx,
zip_flags_t
flags,
zip_uint64_t start,
zip_int64_t len);
DESCRIPTION¶
The function
zip_source_zip() creates a zip source from a file in a zip
archive. The
srcarchive argument is the (open) zip archive containing
the source zip file at index
srcidx.
len bytes from offset
start will be used in the zip_source. If
len is 0 or -1, the
rest of the file, starting from
start, is used. If
start is zero
and
len is -1, the whole file will be copied without decompressing it.
Supported flags are:
- ZIP_FL_UNCHANGED
- Try to get the original data without any changes that may have been made
to srcarchive after opening it.
- ZIP_FL_RECOMPRESS
- When adding the data from srcarchive, re-compress it using the
current settings instead of copying the compressed data.
RETURN VALUES¶
Upon successful completion, the created source is returned. Otherwise, NULL is
returned and the error code in
archive is set to indicate the error.
ERRORS¶
zip_source_zip() fails if:
- [ZIP_ER_CHANGED]
- Unchanged data was requested, but it is not available.
- [ZIP_ER_INVAL]
- srcarchive, srcidx, start, or len are
invalid.
- [ZIP_ER_MEMORY]
- Required memory could not be allocated.
Additionally, it can return all error codes from
zip_stat_index() and
zip_fopen_index().
SEE ALSO¶
libzip(3),
zip_add(3),
zip_replace(3),
zip_source_buffer(3),
zip_source_file(3),
zip_source_filep(3),
zip_source_free(3),
zip_source_function(3)
AUTHORS¶
Dieter Baron <
dillo@nih.at> and Thomas Klausner <
tk@giga.or.at>