curl_easy_escape(3)             libcurl Manual             curl_easy_escape(3)

NAME
       curl_easy_escape - URL encodes the given string

SYNOPSIS
       #include <curl/curl.h>

       char *curl_easy_escape( CURL *curl, const char *string , int length );

DESCRIPTION
       This  function  converts the given input string to a URL encoded string
       and returns that as a new allocated string. All input  characters  that
       are not a-z, A-Z, 0-9, '-', '.', '_' or '~' are converted to their "URL
       escaped" version (%NN where NN is a two-digit hexadecimal number).

       If length is set to 0 (zero), curl_easy_escape(3) uses strlen() on  the
       input string to find out the size.

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

AVAILABILITY
       Added in 7.15.4 and replaces the old curl_escape(3) function.

RETURN VALUE
       A pointer to a zero terminated string or NULL if it failed.

EXAMPLE
       CURL *curl = curl_easy_init();
       if(curl) {
         char *output = curl_easy_escape(curl, "data to convert", 15);
         if(output) {
           printf("Encoded: %s\n", output);
           curl_free(output);
         }
       }

SEE ALSO
       curl_easy_unescape(3), curl_free(3), RFC3986

libcurl 7.54.0                 February 03, 2016           curl_easy_escape(3)