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Diffstat (limited to 'docs/libcurl/opts/GNURLOPT_CUSTOMREQUEST.3')
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1 files changed, 111 insertions, 0 deletions
diff --git a/docs/libcurl/opts/GNURLOPT_CUSTOMREQUEST.3 b/docs/libcurl/opts/GNURLOPT_CUSTOMREQUEST.3 new file mode 100644 index 000000000..3b701c07b --- /dev/null +++ b/docs/libcurl/opts/GNURLOPT_CUSTOMREQUEST.3 @@ -0,0 +1,111 @@ +.\" ************************************************************************** +.\" * _ _ ____ _ +.\" * Project ___| | | | _ \| | +.\" * / __| | | | |_) | | +.\" * | (__| |_| | _ <| |___ +.\" * \___|\___/|_| \_\_____| +.\" * +.\" * Copyright (C) 1998 - 2017, Daniel Stenberg, <daniel@haxx.se>, et al. +.\" * +.\" * This software is licensed as described in the file COPYING, which +.\" * you should have received as part of this distribution. The terms +.\" * are also available at https://curl.haxx.se/docs/copyright.html. +.\" * +.\" * You may opt to use, copy, modify, merge, publish, distribute and/or sell +.\" * copies of the Software, and permit persons to whom the Software is +.\" * furnished to do so, under the terms of the COPYING file. +.\" * +.\" * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY +.\" * KIND, either express or implied. +.\" * +.\" ************************************************************************** +.\" +.TH GNURLOPT_CUSTOMREQUEST 3 "17 Jun 2014" "libcurl 7.37.0" "curl_easy_setopt options" +.SH NAME +CURLOPT_CUSTOMREQUEST \- custom string for request +.SH SYNOPSIS +#include <gnurl/curl.h> + +CURLcode curl_easy_setopt(CURL *handle, CURLOPT_CUSTOMREQUEST, char *request); +.SH DESCRIPTION +Pass a pointer to a zero terminated string as parameter. + +When you change the request method by setting \fICURLOPT_CUSTOMREQUEST(3)\fP +to something, you don't actually change how libcurl behaves or acts in regards +to the particular request method, it will only change the actual string sent +in the request. + +Restore to the internal default by setting this to NULL. + +This option can be used to specify the request: +.IP HTTP +Instead of GET or HEAD when performing HTTP based requests. This is +particularly useful, for example, for performing an HTTP DELETE request. + +For example: + +When you tell libcurl to do a HEAD request, but then specify a GET though a +custom request libcurl will still act as if it sent a HEAD. To switch to a +proper HEAD use \fICURLOPT_NOBODY(3)\fP, to switch to a proper POST use +\fICURLOPT_POST(3)\fP or \fICURLOPT_POSTFIELDS(3)\fP and to switch to a proper +GET use \fICURLOPT_HTTPGET(3)\fP. + +Many people have wrongly used this option to replace the entire request with +their own, including multiple headers and POST contents. While that might work +in many cases, it will cause libcurl to send invalid requests and it could +possibly confuse the remote server badly. Use \fICURLOPT_POST(3)\fP and +\fICURLOPT_POSTFIELDS(3)\fP to set POST data. Use \fICURLOPT_HTTPHEADER(3)\fP +to replace or extend the set of headers sent by libcurl. Use +\fICURLOPT_HTTP_VERSION(3)\fP to change HTTP version. + +.IP FTP +Instead of LIST and NLST when performing FTP directory listings. +.IP IMAP +Instead of LIST when issuing IMAP based requests. +.IP POP3 +Instead of LIST and RETR when issuing POP3 based requests. + +For example: + +When you tell libcurl to use a custom request it will behave like a LIST or +RETR command was sent where it expects data to be returned by the server. As +such \fICURLOPT_NOBODY(3)\fP should be used when specifying commands such as +DELE and NOOP for example. +.IP SMTP +Instead of a HELP or VRFY when issuing SMTP based requests. + +For example: + +Normally a multiline response is returned which can be used, in conjunction +with \fICURLOPT_MAIL_RCPT(3)\fP, to specify an EXPN request. If the +\fICURLOPT_NOBODY(3)\fP option is specified then the request can be used to +issue NOOP and RSET commands. + +The application does not have to keep the string around after setting this +option. +.SH DEFAULT +NULL +.SH PROTOCOLS +HTTP, FTP, IMAP, POP3 and SMTP +.SH EXAMPLE +.nf +CURL *curl = curl_easy_init(); +if(curl) { + curl_easy_setopt(curl, CURLOPT_URL, "http://example.com/foo.bin"); + + /* DELETE the given path */ + curl_easy_setopt(curl, CURLOPT_CUSTOMREQUEST, "DELETE"); + + ret = curl_easy_perform(curl); + + curl_easy_cleanup(curl); +} +.fi +.SH AVAILABILITY +IMAP is supported since 7.30.0, POP3 since 7.26.0 and SMTP since 7.34.0. +.SH RETURN VALUE +Returns CURLE_OK if the option is supported, CURLE_UNKNOWN_OPTION if not, or +CURLE_OUT_OF_MEMORY if there was insufficient heap space. +.SH "SEE ALSO" +.BR CURLOPT_HTTPHEADER "(3), " CURLOPT_NOBODY "(3), " +.BR CURLOPT_REQUEST_TARGET "(3), " |