126 lines
4.1 KiB
Text
126 lines
4.1 KiB
Text
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.\" zip_source_stat.mdoc -- get information about zip source
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.\" Copyright (C) 2014-2017 Dieter Baron and Thomas Klausner
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.\"
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.\" This file is part of libzip, a library to manipulate ZIP archives.
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.\" The authors can be contacted at <libzip@nih.at>
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in
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.\" the documentation and/or other materials provided with the
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.\" distribution.
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.\" 3. The names of the authors may not be used to endorse or promote
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.\" products derived from this software without specific prior
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.\" written permission.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS
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.\" OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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.\" WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY
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.\" DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
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.\" GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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.\" INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
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.\" IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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.\" OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
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.\" IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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.\"
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.Dd December 18, 2017
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.Dt ZIP_SOURCE_STAT 3
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.Os
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.Sh NAME
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.Nm zip_source_stat
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.Nd get information about zip_source
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.Sh LIBRARY
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libzip (-lzip)
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.Sh SYNOPSIS
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.In zip.h
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.Ft int
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.Fn zip_source_stat "zip_source_t *source" "zip_stat_t *sb"
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.Sh DESCRIPTION
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The
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.Fn zip_source_stat
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function obtains information about the zip source
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.Ar source
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.Pp
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The
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.Ar sb
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argument is a pointer to a
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.Ft struct zip_source_stat
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(shown below), into which information about the zip source is placed.
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.Bd -literal
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struct zip_source_stat {
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zip_uint64_t valid; /* which fields have valid values */
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const char *name; /* name of the file */
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zip_uint64_t index; /* index within archive */
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zip_uint64_t size; /* size of file (uncompressed) */
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zip_uint64_t comp_size; /* size of file (compressed) */
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time_t mtime; /* modification time */
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zip_uint32_t crc; /* crc of file data */
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zip_uint16_t comp_method; /* compression method used */
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zip_uint16_t encryption_method; /* encryption method used */
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zip_uint32_t flags; /* reserved for future use */
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};
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.Ed
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The structure pointed to by
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.Ar sb
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must be initialized with
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.Fn zip_stat_init 3
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before calling
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.Fn zip_source_stat .
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.Pp
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The
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.Ar valid
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field of the structure specifies which other fields are valid.
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Check if the flag defined by the following defines are in
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.Ar valid
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before accessing the fields:
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.Bl -tag -width ZIP_SOURCE_STAT_ENCRYPTION_METHODXX -compact -offset indent
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.It Dv ZIP_SOURCE_STAT_NAME
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.Ar name
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.It Dv ZIP_SOURCE_STAT_INDEX
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.Ar index
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.It Dv ZIP_SOURCE_STAT_SIZE
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.Ar size
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.It Dv ZIP_SOURCE_STAT_COMP_SIZE
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.Ar comp_size
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.It Dv ZIP_SOURCE_STAT_MTIME
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.Ar mtime
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.It Dv ZIP_SOURCE_STAT_CRC
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.Ar crc
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.It Dv ZIP_SOURCE_STAT_COMP_METHOD
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.Ar comp_method
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.It Dv ZIP_SOURCE_STAT_ENCRYPTION_METHOD
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.Ar encryption_method
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.It Dv ZIP_SOURCE_STAT_FLAGS
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.Ar flags
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.El
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.Pp
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.Em NOTE :
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Some fields may only be filled out after all data has been read from
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the source, for example the
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.Ar crc
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or
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.Ar size
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fields.
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.Sh RETURN VALUES
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Upon successful completion 0 is returned.
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Otherwise, \-1 is returned and the error information in
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.Ar source
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is set to indicate the error.
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.Sh SEE ALSO
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.Xr libzip 3 ,
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.Xr zip_source 3
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.Sh HISTORY
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.Fn zip_source_stat
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was added in libzip 1.0.
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.Sh AUTHORS
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.An -nosplit
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.An Dieter Baron Aq Mt dillo@nih.at
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and
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.An Thomas Klausner Aq Mt tk@giga.or.at
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