.\" zip_get_name.mdoc -- get name of file by index
.\" Copyright (C) 2003-2020 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 September 22, 2020
.Dt ZIP_GET_NAME 3
.Os
.Sh NAME
.Nm zip_get_name
.Nd get name of file by index
.Sh LIBRARY
libzip (-lzip)
.Sh SYNOPSIS
.In zip.h
.Ft const char *
.Fn zip_get_name "zip_t *archive" "zip_uint64_t index" "zip_flags_t flags"
.Sh DESCRIPTION
The
.Fn zip_get_name
function returns the name of the file at position
.Ar index
in
.Ar archive .
The name is in UTF-8 encoding unless
.Dv ZIP_FL_ENC_RAW
was specified (see below).
.Pp
If
.Ar flags
is set to
.Dv ZIP_FL_UNCHANGED ,
the original unchanged filename is returned.
The returned string must not be modified or freed, and becomes invalid when
.Ar archive
is closed.
.Pp
Additionally, the following
.Ar flags
are supported:
.Bl -tag -width ZIP_FL_ENC_STRICTXX -offset indent
.It Dv ZIP_FL_ENC_RAW
Return the unmodified names as it is in the ZIP archive.
.It Dv ZIP_FL_ENC_GUESS
(Default.)
Guess the encoding of the name in the ZIP archive and convert it
to UTF-8, if necessary.
(Only CP-437 and UTF-8 are recognized.)
.It Dv ZIP_FL_ENC_STRICT
Follow the ZIP specification and expect CP-437 encoded names in
the ZIP archive (except if they are explicitly marked as UTF-8).
Convert it to UTF-8.
.El
.Em Note :
ASCII is a subset of both CP-437 and UTF-8.
.Sh RETURN VALUES
Upon successful completion, a pointer to the name is returned.
Otherwise,
.Dv NULL
and the error code in
.Ar archive
is set to indicate the error.
.Sh ERRORS
.Fn zip_get_name
fails if:
.Bl -tag -width Er
.It Bq Er ZIP_ER_DELETED
.Ar index
refers to a file that has been deleted
(see
.Xr zip_delete 3 ) .
.It Bq Er ZIP_ER_INVAL
.Ar index
is not a valid file index in
.Ar archive ,
or
.Ar index
points to an added file and
.Dv ZIP_FL_UNCHANGED
is set.
.It Bq Er ZIP_ER_MEMORY
Required memory could not be allocated.
.El
.Sh SEE ALSO
.Xr libzip 3 ,
.Xr zip_name_locate 3
.Sh HISTORY
.Fn zip_get_name
was added in libzip 0.6.
In libzip 0.10 the type of
.Ar index
was changed from
.Vt int
to
.Vt zip_uint64_t .
In libzip 0.11 the type of
.Ar flags
was changed from
.Vt int
to
.Vt zip_flags_t .
.Sh AUTHORS
.An -nosplit
.An Dieter Baron Aq Mt dillo@nih.at
and
.An Thomas Klausner Aq Mt tk@giga.or.at