mongoose/docs/c-api/http.h/mg_url_decode.md

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---
title: "mg_url_decode()"
decl_name: "mg_url_decode"
symbol_kind: "func"
signature: |
int mg_url_decode(const char *src, int src_len, char *dst, int dst_len,
int is_form_url_encoded);
---
Decodes URL-encoded string.
Source string is specified by (`src`, `src_len`), and destination is
(`dst`, `dst_len`). If `is_form_url_encoded` is non-zero, then
`+` character is decoded as a blank space character. This function
guarantees to `\0`-terminate the destination. If destination is too small,
then the source string is partially decoded and `-1` is returned. Otherwise,
a length of decoded string is returned, not counting final `\0`.