mirror of
https://github.com/curl/curl.git
synced 2024-12-21 06:50:10 +08:00
76 lines
2.9 KiB
Groff
76 lines
2.9 KiB
Groff
.\" **************************************************************************
|
|
.\" * _ _ ____ _
|
|
.\" * Project ___| | | | _ \| |
|
|
.\" * / __| | | | |_) | |
|
|
.\" * | (__| |_| | _ <| |___
|
|
.\" * \___|\___/|_| \_\_____|
|
|
.\" *
|
|
.\" * Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
|
|
.\" *
|
|
.\" * This software is licensed as described in the file COPYING, which
|
|
.\" * you should have received as part of this distribution. The terms
|
|
.\" * are also available at https://curl.se/docs/copyright.html.
|
|
.\" *
|
|
.\" * You may opt to use, copy, modify, merge, publish, distribute and/or sell
|
|
.\" * copies of the Software, and permit persons to whom the Software is
|
|
.\" * furnished to do so, under the terms of the COPYING file.
|
|
.\" *
|
|
.\" * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
|
|
.\" * KIND, either express or implied.
|
|
.\" *
|
|
.\" * SPDX-License-Identifier: curl
|
|
.\" *
|
|
.\" **************************************************************************
|
|
.\"
|
|
.TH curl_easy_unescape 3 "7 April 2006" "libcurl" "libcurl"
|
|
.SH NAME
|
|
curl_easy_unescape - URL decodes the given string
|
|
.SH SYNOPSIS
|
|
.nf
|
|
#include <curl/curl.h>
|
|
|
|
char *curl_easy_unescape(CURL *curl, const char *input,
|
|
int inlength, int *outlength);
|
|
.fi
|
|
.SH DESCRIPTION
|
|
This function converts the URL encoded string \fBinput\fP to a "plain string"
|
|
and returns that in an allocated memory area. All input characters that are URL
|
|
encoded (%XX where XX is a two-digit hexadecimal number) are converted to their
|
|
binary versions.
|
|
|
|
If the \fBlength\fP argument is set to 0 (zero), \fIcurl_easy_unescape(3)\fP
|
|
uses strlen() on \fBinput\fP to find out the size.
|
|
|
|
If \fBoutlength\fP is non-NULL, the function writes the length of the returned
|
|
string in the integer it points to. This allows proper handling even for
|
|
strings containing %00. Since this is a pointer to an \fIint\fP type, it can
|
|
only return a value up to \fIINT_MAX\fP so no longer string can be returned in
|
|
this parameter.
|
|
|
|
Since 7.82.0, the \fBcurl\fP parameter is ignored. Prior to that there was
|
|
per-handle character conversion support for some old operating systems such as
|
|
TPF, but it was otherwise ignored.
|
|
|
|
You must \fIcurl_free(3)\fP the returned string when you are done with it.
|
|
.SH EXAMPLE
|
|
.nf
|
|
CURL *curl = curl_easy_init();
|
|
if(curl) {
|
|
int decodelen;
|
|
char *decoded = curl_easy_unescape(curl, "%63%75%72%6c", 12, &decodelen);
|
|
if(decoded) {
|
|
/* do not assume printf() works on the decoded data! */
|
|
printf("Decoded: ");
|
|
/* ... */
|
|
curl_free(decoded);
|
|
}
|
|
curl_easy_cleanup(curl);
|
|
}
|
|
.fi
|
|
.SH AVAILABILITY
|
|
Added in 7.15.4 and replaces the old \fIcurl_unescape(3)\fP function.
|
|
.SH RETURN VALUE
|
|
A pointer to a null-terminated string or NULL if it failed.
|
|
.SH "SEE ALSO"
|
|
.BR curl_easy_escape "(3), " curl_free "(3)," RFC 3986
|