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curl_unescape(3)                    libcurl                   curl_unescape(3)


NAME

       curl_unescape - URL decodes the given string


SYNOPSIS

       #include <curl/curl.h>

       char *curl_unescape(const char *input, int length);


DESCRIPTION

       Obsolete function. Use curl_easy_unescape(3) instead!

       This function will convert the URL encoded string input to a "plain
       string" and return that as a new allocated string. All input characters
       that are URL encoded (%XX where XX is a two-digit hexadecimal number)
       will be converted to their plain text versions.

       If the length argument is set to 0, curl_unescape(3) will use strlen()
       on input to find out the size.

       You must curl_free(3) the returned string when you are done with it.


EXAMPLE

       CURL *curl = curl_easy_init();
       if(curl) {
         int decodelen;
         char *decoded = curl_unescape("%63%75%72%6c", 12, &decodelen);
         if(decoded) {
           /* do not assume printf() works on the decoded data! */
           printf("Decoded: ");
           /* ... */
           curl_free(decoded);
         }
       }


AVAILABILITY

       Since 7.15.4, curl_easy_unescape(3) should be used. This function will
       be removed in a future release.


RETURN VALUE

       A pointer to a null-terminated string or NULL if it failed.


SEE ALSO

       curl_easy_escape(3),curl_easy_unescape(3),curl_free(3),RFC2396

libcurl 8.1.2                   April 26, 2023                curl_unescape(3)

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