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comparison mupdf-source/thirdparty/curl/docs/libcurl/opts/CURLOPT_POSTREDIR.3 @ 2:b50eed0cc0ef upstream

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ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4. The directory name has changed: no version number in the expanded directory now.
author Franz Glasner <fzglas.hg@dom66.de>
date Mon, 15 Sep 2025 11:43:07 +0200
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23 .TH CURLOPT_POSTREDIR 3 "19 Jun 2014" "libcurl 7.37.0" "curl_easy_setopt options"
24 .SH NAME
25 CURLOPT_POSTREDIR \- how to act on an HTTP POST redirect
26 .SH SYNOPSIS
27 .nf
28 #include <curl/curl.h>
29
30 CURLcode curl_easy_setopt(CURL *handle, CURLOPT_POSTREDIR,
31 long bitmask);
32 .SH DESCRIPTION
33 Pass a bitmask to control how libcurl acts on redirects after POSTs that get a
34 301, 302 or 303 response back. A parameter with bit 0 set (value
35 \fBCURL_REDIR_POST_301\fP) tells the library to respect RFC 7231 (section
36 6.4.2 to 6.4.4) and not convert POST requests into GET requests when following
37 a 301 redirection. Setting bit 1 (value \fBCURL_REDIR_POST_302\fP) makes
38 libcurl maintain the request method after a 302 redirect whilst setting bit 2
39 (value \fBCURL_REDIR_POST_303\fP) makes libcurl maintain the request method
40 after a 303 redirect. The value \fBCURL_REDIR_POST_ALL\fP is a convenience
41 define that sets all three bits.
42
43 The non-RFC behaviour is ubiquitous in web browsers, so the library does the
44 conversion by default to maintain consistency. However, a server may require a
45 POST to remain a POST after such a redirection. This option is meaningful only
46 when setting \fICURLOPT_FOLLOWLOCATION(3)\fP.
47 .SH DEFAULT
48 0
49 .SH PROTOCOLS
50 HTTP(S)
51 .SH EXAMPLE
52 .nf
53 CURL *curl = curl_easy_init();
54 if(curl) {
55 curl_easy_setopt(curl, CURLOPT_URL, "http://example.com");
56
57 /* a silly POST example */
58 curl_easy_setopt(curl, CURLOPT_POSTFIELDS, "data=true");
59
60 /* example.com is redirected, so we tell libcurl to send POST on 301, 302 and
61 303 HTTP response codes */
62 curl_easy_setopt(curl, CURLOPT_POSTREDIR, CURL_REDIR_POST_ALL);
63
64 curl_easy_perform(curl);
65 }
66 .fi
67 .SH AVAILABILITY
68 Added in 7.17.1. This option was known as CURLOPT_POST301 up to 7.19.0 as it
69 only supported the 301 then. CURL_REDIR_POST_303 was added in 7.26.0.
70 .SH RETURN VALUE
71 Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not.
72 .SH "SEE ALSO"
73 .BR CURLOPT_FOLLOWLOCATION "(3), " CURLOPT_POSTFIELDS "(3), "