2009-05-19 08:48:14 -04:00
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.\" **************************************************************************
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.\" * _ _ ____ _
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.\" * Project ___| | | | _ \| |
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.\" * / __| | | | |_) | |
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.\" * | (__| |_| | _ <| |___
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.\" * \___|\___/|_| \_\_____|
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.\" *
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.\" * Copyright (C) 1998 - 2008, Daniel Stenberg, <daniel@haxx.se>, et al.
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.\" *
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.\" * This software is licensed as described in the file COPYING, which
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.\" * you should have received as part of this distribution. The terms
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.\" * are also available at http://curl.haxx.se/docs/copyright.html.
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.\" *
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.\" * You may opt to use, copy, modify, merge, publish, distribute and/or sell
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.\" * copies of the Software, and permit persons to whom the Software is
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.\" * furnished to do so, under the terms of the COPYING file.
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.\" *
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.\" * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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.\" * KIND, either express or implied.
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.\" *
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.\" **************************************************************************
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.\"
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.TH curl_easy_unescape 3 "7 April 2006" "libcurl 7.15.4" "libcurl Manual"
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.SH NAME
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curl_easy_unescape - URL decodes the given string
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.SH SYNOPSIS
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.B #include <curl/curl.h>
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.sp
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.BI "char *curl_easy_unescape( CURL *" curl ", char *" url ", int "inlength
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.BI ", int *" outlength " );"
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.ad
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.SH DESCRIPTION
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This function converts the given URL encoded input string to a "plain string"
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and returns that in an allocated memory area. All input characters that are
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URL encoded (%XX where XX is a two-digit hexadecimal number) are converted to
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their binary versions.
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If the \fBlength\fP argument is set to 0 (zero), \fIcurl_easy_unescape(3)\fP
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will use strlen() on the input \fIurl\fP string to find out the size.
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If \fBoutlength\fP is non-NULL, the function will write the length of the
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returned string in the integer it points to. This allows an escaped string
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containing %00 to still get used properly after unescaping.
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You must \fIcurl_free(3)\fP the returned string when you're done with it.
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.SH AVAILABILITY
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Added in 7.15.4 and replaces the old \fIcurl_unescape(3)\fP function.
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.SH RETURN VALUE
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A pointer to a zero terminated string or NULL if it failed.
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.SH "SEE ALSO"
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.I curl_easy_escape(3), curl_free(3), RFC 2396
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