| .\" zip_open.mdoc -- open zip archive |
| .\" Copyright (C) 2003-2021 Dieter Baron and Thomas Klausner |
| .\" |
| .\" This file is part of libzip, a library to manipulate ZIP archives. |
| .\" The authors can be contacted at <libzip@nih.at> |
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| .Dd December 18, 2017 |
| .Dt ZIP_OPEN 3 |
| .Os |
| .Sh NAME |
| .Nm zip_open , |
| .Nm zip_open_from_source |
| .Nd open zip archive |
| .Sh LIBRARY |
| libzip (-lzip) |
| .Sh SYNOPSIS |
| .In zip.h |
| .Ft zip_t * |
| .Fn zip_open "const char *path" "int flags" "int *errorp" |
| .Ft zip_t * |
| .Fn zip_open_from_source "zip_source_t *zs" "int flags" "zip_error_t *ze" |
| .Sh DESCRIPTION |
| The |
| .Fn zip_open |
| function opens the zip archive specified by |
| .Ar path |
| and returns a pointer to a |
| .Ft struct zip , |
| used to manipulate the archive. |
| The |
| .Fa flags |
| are specified by |
| .Em or Ns No 'ing |
| the following values, or 0 for none of them. |
| .Bl -tag -offset indent -width ZIP_CHECKCONS |
| .It Dv ZIP_CHECKCONS |
| Perform additional stricter consistency checks on the archive, and |
| error if they fail. |
| .It Dv ZIP_CREATE |
| Create the archive if it does not exist. |
| .It Dv ZIP_EXCL |
| Error if archive already exists. |
| .It Dv ZIP_TRUNCATE |
| If archive exists, ignore its current contents. |
| In other words, handle it the same way as an empty archive. |
| .It Dv ZIP_RDONLY |
| Open archive in read-only mode. |
| .El |
| .Pp |
| If an error occurs and |
| .Ar errorp |
| is |
| .Pf non- Dv NULL , |
| it will be set to the corresponding error code. |
| .Pp |
| The |
| .Fn zip_open_from_source |
| function opens a zip archive encapsulated by the zip_source |
| .Fa zs |
| using the provided |
| .Fa flags . |
| In case of error, the zip_error |
| .Fa ze |
| is filled in. |
| .Sh RETURN VALUES |
| Upon successful completion |
| .Fn zip_open |
| and |
| .Fn zip_open_from_source |
| return a |
| .Ft struct zip |
| pointer. |
| Otherwise, |
| .Dv NULL |
| is returned and |
| .Fn zip_open |
| sets |
| .Ar *errorp |
| to indicate the error, while |
| .Fn zip_open_from source |
| sets |
| .Ar ze |
| to indicate the error. |
| .Sh ERRORS |
| The archive specified by |
| .Ar path |
| is opened unless: |
| .Bl -tag -width Er |
| .It Bq Er ZIP_ER_EXISTS |
| The file specified by |
| .Ar path |
| exists and |
| .Dv ZIP_EXCL |
| is set. |
| .It Bq Er ZIP_ER_INCONS |
| Inconsistencies were found in the file specified by |
| .Ar path . |
| This error is often caused by specifying |
| .Dv ZIP_CHECKCONS |
| but can also happen without it. |
| .It Bq Er ZIP_ER_INVAL |
| The |
| .Ar path |
| argument is |
| .Dv NULL . |
| .It Bq Er ZIP_ER_MEMORY |
| Required memory could not be allocated. |
| .It Bq Er ZIP_ER_NOENT |
| The file specified by |
| .Ar path |
| does not exist and |
| .Dv ZIP_CREATE |
| is not set. |
| .It Bq Er ZIP_ER_NOZIP |
| The file specified by |
| .Ar path |
| is not a zip archive. |
| .It Bq Er ZIP_ER_OPEN |
| The file specified by |
| .Ar path |
| could not be opened. |
| .It Bq Er ZIP_ER_READ |
| A read error occurred; see |
| .Va errno |
| for details. |
| .It Bq Er ZIP_ER_SEEK |
| The file specified by |
| .Ar path |
| does not allow seeks. |
| .El |
| .Sh SEE ALSO |
| .Xr libzip 3 , |
| .Xr zip_close 3 , |
| .Xr zip_error_strerror 3 , |
| .Xr zip_fdopen 3 |
| .Sh HISTORY |
| .Fn zip_open |
| and |
| .Fn zip_open_from_source |
| were added in libzip 1.0. |
| .Sh AUTHORS |
| .An -nosplit |
| .An Dieter Baron Aq Mt dillo@nih.at |
| and |
| .An Thomas Klausner Aq Mt tk@giga.or.at |
