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57 lines
2.0 KiB
Groff
57 lines
2.0 KiB
Groff
.\" generated by cd2nroff 0.1 from curl_easy_escape.md
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.TH curl_easy_escape 3 "March 15 2024" libcurl
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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, \(aq\-\(aq, \(aq.\(aq, \(aq_\(aq or \(aq~\(aq are converted to their "URL escaped"
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version (\fB%NN\fP where \fBNN\fP 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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Since 7.82.0, the \fBcurl\fP parameter is ignored. Prior to that there was
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per\-handle character conversion support for some old operating systems such as
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TPF, but it was otherwise ignored.
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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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int main(void)
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{
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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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}
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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),
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.BR curl_free (3)
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