.\" zip_name_locate.mdoc -- get index of file by name
.\" 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 March 15, 2022
.Dt ZIP_NAME_LOCATE 3
.Os
.Sh NAME
.Nm zip_name_locate
.Nd get index of file by name
.Sh LIBRARY
libzip (-lzip)
.Sh SYNOPSIS
.In zip.h
.Ft zip_int64_t
.Fn zip_name_locate "zip_t *archive" "const char *fname" "zip_flags_t flags"
.Sh DESCRIPTION
The
.Fn zip_name_locate
function returns the index of the file named
.Ar fname
in
.Ar archive .
If
.Ar archive
does not contain a file with that name, \-1 is returned.
.Pp
If neither
.Dv ZIP_FL_ENC_RAW
nor
.Dv ZIP_FL_ENC_STRICT
are specified, guess the encoding of the name in the ZIP archive and convert it
to UTF-8, if necessary, before comparing.
.Pp
If neither
.Dv ZIP_FL_ENC_CP437
nor
.Dv ZIP_FL_ENC_UTF_8
are specified, guess the encoding of
.Ar fname .
.Pp
Only CP-437 and UTF-8 are recognized.
.Pp
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_FL_ENC_STRICT
.It Dv ZIP_FL_NOCASE
Ignore case distinctions.
(Will only work well if the file names are ASCII.)
With this flag,
.Fn zip_name_locate
will be slow for archives with many files.
.It Dv ZIP_FL_NODIR
Ignore directory part of file name in archive.
With this flag,
.Fn zip_name_locate
will be slow for archives with many files.
.It Dv ZIP_FL_ENC_GUESS
This flag has no effect (its value is 0); it can be used to explicitly denote the absence of encoding flags.
.It Dv ZIP_FL_ENC_RAW
Compare
.Ar fname
against the unmodified names as they are in the ZIP archive, without converting them to UTF-8.
.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 them to UTF-8 before comparing.
.It Dv ZIP_FL_ENC_CP437
.Ar fname
is encoded as CP-437.
.It Dv ZIP_FL_ENC_UTF_8
.Ar fname
is encoded as UTF-8.
.El
.Pp
.Em Note :
ASCII is a subset of both CP-437 and UTF-8.
.Sh RETURN VALUES
.Fn zip_name_locate
returns the index of the file named
.Ar fname
or \-1, if
.Ar archive
does not contain an entry of that name.
.Sh ERRORS
.Fn zip_name_locate
fails if:
.Bl -tag -width Er
.It Bq Er ZIP_ER_INVAL
One of the arguments is invalid.
.It Bq Er ZIP_ER_MEMORY
Required memory could not be allocated.
.It Bq Er ZIP_ER_NOENT
No entry of the name
.Ar fname
is found in the archive.
.El
.Sh SEE ALSO
.Xr libzip 3 ,
.Xr zip_get_name 3
.Sh HISTORY
.Fn zip_name_locate
was added in libzip 0.6.
In libzip 0.11 the return type was changed from
.Vt int
to
.Vt zip_int64_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