| .\" zip_source_zip.mdoc \-- create data source from zip file |
| .\" Copyright (C) 2004, 2005, 2008 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> |
| .\" |
| .\" Redistribution and use in source and binary forms, with or without |
| .\" modification, are permitted provided that the following conditions |
| .\" are met: |
| .\" 1. Redistributions of source code must retain the above copyright |
| .\" notice, this list of conditions and the following disclaimer. |
| .\" 2. Redistributions in binary form must reproduce the above copyright |
| .\" notice, this list of conditions and the following disclaimer in |
| .\" the documentation and/or other materials provided with the |
| .\" distribution. |
| .\" 3. The names of the authors may not be used to endorse or promote |
| .\" products derived from this software without specific prior |
| .\" written permission. |
| .\" |
| .\" THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS |
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| .\" |
| .TH ZIP_SOURCE_ZIP 3 "June 4, 2008" NiH |
| .SH "NAME" |
| zip_source_zip \- create data source from zip file |
| .SH "LIBRARY" |
| libzip (-lzip) |
| .SH "SYNOPSIS" |
| #include <zip.h> |
| .PP |
| struct zip_source * |
| zip_source_zip(struct zip *archive, struct zip *srcarchive); \ |
| "int srcidx" "int flags" "off_t start" "off_t len" |
| .SH "DESCRIPTION" |
| The function |
| zip_source_zip |
| creates a zip source from a file in a zip archive. |
| The |
| \fBsrcarchive\fR |
| argument is the (open) zip archive containing the source zip file |
| at index |
| \fBsrcidx.\fR |
| \fBlen\fR |
| bytes from offset |
| \fBstart\fR |
| will be used in the zip_source. |
| If |
| \fBlen\fR |
| is 0 or \-1, the rest of the file, starting from |
| \fBstart,\fR |
| is used. |
| If |
| \fBstart\fR |
| is zero and |
| \fBlen\fR |
| is \-1, the whole file will be copied without decompressing it. |
| .PP |
| Supported flags are: |
| .RS |
| .TP 23 |
| \fBZIP_FL_UNCHANGED\fR |
| Try to get the original data without any changes that may have been |
| made to |
| \fBsrcarchive\fR |
| after opening it. |
| .TP 23 |
| \fBZIP_FL_RECOMPRESS\fR |
| When adding the data from |
| \fBsrcarchive,\fR |
| re-compress it using the current settings instead of copying the |
| compressed data. |
| .RE |
| .SH "RETURN VALUES" |
| Upon successful completion, the created source is returned. |
| Otherwise, |
| \fBNULL\fR |
| is returned and the error code in |
| \fBarchive\fR |
| is set to indicate the error. |
| .SH "ERRORS" |
| zip_source_zip |
| fails if: |
| .RS |
| .TP 4 |
| [ZIP_ER_CHANGED] |
| Unchanged data was requested, but it is not available. |
| .TP 4 |
| [ZIP_ER_INVAL] |
| \fBsrcarchive,\fR |
| \fBsrcidx,\fR |
| \fBstart,\fR |
| or |
| \fBlen\fR |
| are invalid. |
| .TP 4 |
| [ZIP_ER_MEMORY] |
| Required memory could not be allocated. |
| .RE |
| Additionally, it can return all error codes from |
| zip_stat_index |
| and |
| zip_fopen_index. |
| .SH "SEE ALSO" |
| libzip(3), |
| zip_add(3), |
| zip_replace(3), |
| zip_source_buffer(3), |
| zip_source_file(3), |
| zip_source_filep(3), |
| zip_source_free(3), |
| zip_source_function(3) |
| .SH "AUTHORS" |
| |
| Dieter Baron <dillo@giga.or.at> |
| and |
| Thomas Klausner <tk@giga.or.at> |
