zip_file_add, zip_file_replace — add file to zip archive or replace file in zip archive

       Dieter Baron <dillo@nih.at> and Thomas Klausner <wiz@gatalith.at>

Debian                                           March 18, 2024                                  ZIP_FILE_ADD(3)

       The  function  zip_file_add() adds a file to a zip archive, while zip_file_replace() replaces an existing
       file in a zip archive.  The argument archive specifies the zip archive to which the file should be added.
       name is the file's name in the zip archive (for zip_file_add()), while index specifies which file  should
       be replaced (for zip_file_replace()).  The flags argument can be any combination of ZIP_FL_OVERWRITE with
       one of ZIP_FL_ENC_*:

       ZIP_FL_OVERWRITE      Overwrite any existing file of the same name.  For zip_file_add only.

       ZIP_FL_ENC_GUESS      Guess encoding of name (default).  (Only CP-437 and UTF-8 are recognized.)

       ZIP_FL_ENC_UTF_8      Interpret name as UTF-8.

       ZIP_FL_ENC_CP437      Interpret name as code page 437 (CP-437).
       The data is obtained from the source argument, see zip_source(3).

       NOTE:  zip_source_free(3)  should  not  be  called  on  a  source  after  it  was  used successfully in a
       zip_file_add or zip_file_replace call.

       Please also note that when using zip_replace, the target file's extra field information will  be  deleted
       since  this  usually  is dependent on the file contents.  If you want to keep them, query them beforehand
       with zip_file_extra_field_get(3) and restore them after zip_replace with zip_file_extra_field_set(3).

zip_file_add() and zip_file_replace() fail if:

       [ZIP_ER_EXISTS]    There  is already a file called name in the archive.  (Only applies to zip_file_add(),
                          and only if ZIP_FL_OVERWRITE is not provided).

       [ZIP_ER_INVAL]     source or name are NULL, or index is invalid.

       [ZIP_ER_MEMORY]    Required memory could not be allocated.

       [ZIP_ER_RDONLY]    Archive was opened in read-only mode.

             zip_source_t *s;
             const char buf[]="teststring";

             if ((s=zip_source_buffer(archive, buf, sizeof(buf), 0)) == NULL ||
                 zip_file_add(archive, name, s, ZIP_FL_ENC_UTF_8) < 0) {
                 zip_source_free(s);
                 printf("error adding file: %s\n", zip_strerror(archive));
             }

zip_file_add() and zip_file_replace() were added in libzip 0.11.

       libzip (-lzip)

       zip_file_add, zip_file_replace — add file to zip archive or replace file in zip archive

       Upon successful completion, zip_file_add() returns the  index  of  the  new  file  in  the  archive,  and
       zip_file_replace() returns 0.  Otherwise, -1 is returned and the error code in archive is set to indicate
       the error.

libzip(3), zip_source(3)

#include<zip.h>zip_int64_tzip_file_add(zip_t*archive, constchar*name, zip_source_t*source, zip_flags_tflags);

       intzip_file_replace(zip_t*archive, zip_uint64_tindex, zip_source_t*source, zip_flags_tflags);