c: Copyright (C) Daniel Stenberg, <daniel.se>, et al. SPDX-License-Identifier: curl Title: curl_unescape Section: 3 Source: libcurl See-also:
curl_unescape - URL decodes the given string
#include <curl/curl.h> char *curl_unescape(const char *input, int length);
Obsolete function. 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.
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); } } }
Since 7.15.4, curl_easy_unescape(3) should be used. This function might be removed in a future release.
A pointer to a null-terminated string or NULL if it failed.