curl/docs/libcurl/opts/CURLOPT_MAXREDIRS.md
Daniel Stenberg eefcc1bda4
docs: introduce "curldown" for libcurl man page format
curldown is this new file format for libcurl man pages. It is markdown
inspired with differences:

- Each file has a set of leading headers with meta-data
- Supports a small subset of markdown
- Uses .md file extensions for editors/IDE/GitHub to treat them nicely
- Generates man pages very similar to the previous ones
- Generates man pages that still convert nicely to HTML on the website
- Detects and highlights mentions of curl symbols automatically (when
  their man page section is specified)

tools:

- cd2nroff: converts from curldown to nroff man page
- nroff2cd: convert an (old) nroff man page to curldown
- cdall: convert many nroff pages to curldown versions
- cd2cd: verifies and updates a curldown to latest curldown

This setup generates .3 versions of all the curldown versions at build time.

CI:

Since the documentation is now technically markdown in the eyes of many
things, the CI runs many more tests and checks on this documentation,
including proselint, link checkers and tests that make sure we capitalize the
first letter after a period...

Closes #12730
2024-01-23 00:29:02 +01:00

1.5 KiB

c SPDX-License-Identifier Title Section Source See-also
Copyright (C) Daniel Stenberg, <daniel.se>, et al. curl CURLOPT_MAXREDIRS 3 libcurl
CURLINFO_REDIRECT_COUNT (3)
CURLINFO_REDIRECT_URL (3)
CURLOPT_FOLLOWLOCATION (3)

NAME

CURLOPT_MAXREDIRS - maximum number of redirects allowed

SYNOPSIS

#include <curl/curl.h>

CURLcode curl_easy_setopt(CURL *handle, CURLOPT_MAXREDIRS, long amount);

DESCRIPTION

Pass a long. The set number is the redirection limit amount. If that many redirections have been followed, the next redirect triggers the error (CURLE_TOO_MANY_REDIRECTS). This option only makes sense if the CURLOPT_FOLLOWLOCATION(3) is used at the same time.

Setting the limit to 0 makes libcurl refuse any redirect.

Set it to -1 for an infinite number of redirects. This allows your application to get stuck in never-ending redirect loops.

DEFAULT

30 (since 8.3.0), it was previously unlimited.

PROTOCOLS

HTTP(S)

EXAMPLE

int main(void)
{
  CURL *curl = curl_easy_init();
  if(curl) {
    curl_easy_setopt(curl, CURLOPT_URL, "https://example.com/");

    /* enable redirect following */
    curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION, 1L);

    /* allow three redirects */
    curl_easy_setopt(curl, CURLOPT_MAXREDIRS, 3L);

    /* Perform the request */
    curl_easy_perform(curl);
  }
}

AVAILABILITY

Along with HTTP

RETURN VALUE

Returns CURLE_OK if HTTP is supported, and CURLE_UNKNOWN_OPTION if not.