| .\" zip_source_read.mdoc -- read data from zip source |
| .\" Copyright (C) 2014-2021 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> |
| .\" |
| .\" Redistribution and use in source and binary forms, with or without |
| .\" modification, are permitted provided that the following conditions |
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| .\" 2. Redistributions in binary form must reproduce the above copyright |
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| .\" 3. The names of the authors may not be used to endorse or promote |
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| .\" THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS |
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| .Dd September 28, 2021 |
| .Dt ZIP_SOURCE_READ 3 |
| .Os |
| .Sh NAME |
| .Nm zip_source_read |
| .Nd read data from zip source |
| .Sh LIBRARY |
| libzip (-lzip) |
| .Sh SYNOPSIS |
| .In zip.h |
| .Ft zip_int64_t |
| .Fn zip_source_read "zip_source_t *source" "void *data" "zip_uint64_t len" |
| .Sh DESCRIPTION |
| The function |
| .Fn zip_source_read |
| reads up to |
| .Ar len |
| bytes of data from |
| .Ar source |
| at the current read offset into the buffer |
| .Ar data . |
| .Pp |
| The zip source |
| .Ar source |
| has to be opened for reading by calling |
| .Xr zip_source_open 3 |
| first. |
| .Sh RETURN VALUES |
| Upon successful completion the number of bytes read is returned. |
| When |
| .Fn zip_source_read |
| is called after reaching the end of the file, 0 is returned. |
| Otherwise, \-1 is returned and the error information in |
| .Ar source |
| is set to indicate the error. |
| .Sh SEE ALSO |
| .Xr libzip 3 , |
| .Xr zip_source 3 , |
| .Xr zip_source_seek 3 , |
| .Xr zip_source_tell 3 , |
| .Xr zip_source_write 3 |
| .Sh HISTORY |
| .Fn zip_source_read |
| was 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 |
