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71 строка
2.8 KiB
Groff
71 строка
2.8 KiB
Groff
.\" **************************************************************************
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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 - 2021, 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 https://curl.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_escape 3 "December 06, 2021" "libcurl 7.83.1" "libcurl Manual"
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.SH NAME
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curl_easy_escape - URL encodes the given string
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.SH SYNOPSIS
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.nf
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#include <curl/curl.h>
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char *curl_easy_escape(CURL *curl, const char *string, int length);
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.fi
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.SH DESCRIPTION
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This function converts the given input \fIstring\fP to a URL encoded string
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and returns that as a new allocated string. All input characters that are not
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a-z, A-Z, 0-9, '-', '.', '_' or '~' are converted to their "URL escaped"
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version (%NN where NN is a two-digit hexadecimal number).
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If \fIlength\fP is set to 0 (zero), \fIcurl_easy_escape(3)\fP uses strlen() on
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the input \fIstring\fP to find out the size. This function does not accept
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input strings longer than \fBCURL_MAX_INPUT_LENGTH\fP (8 MB).
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You must \fIcurl_free(3)\fP the returned string when you are done with it.
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.SH ENCODING
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libcurl is typically not aware of, nor does it care about, character
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encodings. \fIcurl_easy_escape(3)\fP encodes the data byte-by-byte into the
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URL encoded version without knowledge or care for what particular character
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encoding the application or the receiving server may assume that the data
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uses.
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The caller of \fIcurl_easy_escape(3)\fP must make sure that the data passed in
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to the function is encoded correctly.
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.SH EXAMPLE
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.nf
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CURL *curl = curl_easy_init();
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if(curl) {
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char *output = curl_easy_escape(curl, "data to convert", 15);
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if(output) {
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printf("Encoded: %s\\n", output);
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curl_free(output);
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}
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curl_easy_cleanup(curl);
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}
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.fi
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.SH AVAILABILITY
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Added in 7.15.4 and replaces the old \fIcurl_escape(3)\fP function.
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.SH RETURN VALUE
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A pointer to a null-terminated string or NULL if it failed.
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.SH "SEE ALSO"
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.BR curl_easy_unescape "(3), " curl_free "(3), " RFC 3986
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