1 .\" zip_file_extra_field_set.mdoc -- set extra field for file in zip
2 .\" Copyright (C) 2012-2015 Dieter Baron and Thomas Klausner
4 .\" This file is part of libzip, a library to manipulate ZIP files.
5 .\" The authors can be contacted at <libzip@nih.at>
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33 .Dt ZIP_FILE_EXTRA_FIELD_SET 3
36 .Nm zip_file_extra_field_set
37 .Nd set extra field for file in zip
43 .Fn zip_file_extra_field_set "zip_t *archive" "zip_uint64_t index" \
44 "zip_uint16_t extra_field_id" "zip_uint16_t extra_field_index" \
45 "const zip_uint8_t *extra_field_data" "zip_uint16_t len" \
49 .Fn zip_file_extra_field_set
50 function sets the extra field with ID (two-byte signature)
54 for the file at position
57 The extra field's data will be set to
61 If a new entry shall be appended, set
64 .Dv ZIP_EXTRA_FIELD_NEW .
66 At least one of the following
69 .Bl -tag -width ZIP_FL_CENTRALXX -offset indent
71 Set extra field in the archive's central directory.
73 Set extra field in the local file headers.
76 Please note that the extra field IDs 0x0001 (ZIP64 extension),
77 0x6375 (Infozip UTF-8 comment), and
78 0x7075 (Infozip UTF-8 file name) can not be set using
79 .Fn zip_file_extra_field_set
82 automatically when needed.
84 Upon successful completion 0 is returned.
85 Otherwise, \-1 is returned and the error code in
87 is set to indicate the error.
89 .Fn zip_file_extra_field_set
92 .It Bq Er ZIP_ER_INVAL
93 The extra field size is too large (ID and length need 4 bytes; the
94 maximum length of all extra fields for one file combined is 65536
96 This error also occurs if
99 .It Bq Er ZIP_ER_MEMORY
100 Required memory could not be allocated.
101 .It Bq Er ZIP_ER_NOENT
103 is not a valid file index in
108 .Xr zip_file_extra_field_delete 3 ,
109 .Xr zip_file_extra_field_get 3 ,
110 .Xr zip_file_extra_fields_count 3
113 .An Dieter Baron Aq Mt dillo@nih.at
115 .An Thomas Klausner Aq Mt tk@giga.or.at