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Man Pages


Manual Reference Pages  -  ZIP_SET_FILE_COMPRESSION (3)

NAME

zip_set_file_compression - set compression method for file in zip

CONTENTS

Library
Synopsis
Description
Return Values
Errors
See Also
Authors

LIBRARY

libzip (-lzip)

SYNOPSIS


.In 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 information 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


.An -nosplit
.An Dieter Baron Aq Mt dillo@nih.at and
.An Thomas Klausner Aq Mt tk@giga.or.at
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