SIMPLE SOLUTIONS

ZIP_SET_FILE_COMPRESSION(3) - man page online | library functions

Set compression method for file in zip.

Chapter
May 1, 2012
ZIP_SET_FILE_COMPRESSION(3)          Library Functions Manual         ZIP_SET_FILE_COMPRESSION(3)

NAME

zip_set_file_compression - set compression method for file in zip

LIBRARY

libzip (-lzip)

SYNOPSIS

zip.h int zip_set_file_compression zip_t *archive zip_uint64_t index zip_int32_t comp zip_uint32_t comp_flags

DESCRIPTION

The zip_set_file_compression function sets the compression method for the file at position index in the zip archive to comp with the compression method specific comp_flags. The comp is the same as returned by zip_stat(3). For the comp argument, currently only the following values are supported: ZIP_CM_DEFAULT default compression; currently the same as ZIP_CM_DEFLATE. ZIP_CM_STORE Store the file uncompressed. ZIP_CM_DEFLATE Deflate the file with the zlib(3) algorithm and default options The comp_flags argument is currently ignored. The current compression method for a file in a zip archive can be determined using zip_stat(3).

RETURN VALUES

Upon successful completion 0 is returned. Otherwise, -1 is returned and the error infor‐ mation in archive is set to indicate the error.

ERRORS

zip_set_file_compression fails if: [ZIP_ER_INVAL] index is not a valid file index in archive, or the argument combination is invalid. [ZIP_ER_COMPNOTSUPP] Unsupported compression method requested. [ZIP_ER_RDONLY] Read-only zip file, no changes allowed.

SEE ALSO

libzip(3), zip_stat(3)

AUTHORS

Dieter Baron <@nih.at> and Thomas Klausner <@giga.or.at>
NiH May 1, 2012 ZIP_SET_FILE_COMPRESSION(3)
This manual Reference Other manuals
zip_set_file_compression(3) referred by libzip(3)
refer to libzip(3) | zip_stat(3) | zlib(3)