table of contents
ZIP_SOURCE_ZIP(3) | Library Functions Manual | ZIP_SOURCE_ZIP(3) |
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" "int 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.
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@giga.or.at> and Thomas Klausner <tk@giga.or.at>
June 4, 2008 | NiH |