NAME

       curl_unescape - URL decode a string

SYNOPSIS

       #include <curl/curl.h>

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

DESCRIPTION

       Deprecated. Use curl_easy_unescape(3) instead.

       This  function  converts  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) are converted to their plain text versions.

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

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

PROTOCOLS

       This functionality affects all supported protocols

EXAMPLE

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

DEPRECATED

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

AVAILABILITY

       Added in curl 7.1

RETURN VALUE

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

SEE ALSO

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

libcurl                                            2025-03-05                                   curl_unescape(3)