.\" ************************************************************************** .\" * _ _ ____ _ .\" * Project ___| | | | _ \| | .\" * / __| | | | |_) | | .\" * | (__| |_| | _ <| |___ .\" * \___|\___/|_| \_\_____| .\" * .\" * Copyright (C) Daniel Stenberg, , 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.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. .\" * .\" * SPDX-License-Identifier: curl .\" * .\" ************************************************************************** .TH curl_easy_init 3 "December 04, 2023" "libcurl 8.5.0" "libcurl" .SH NAME curl_easy_init - Start a libcurl easy session .SH SYNOPSIS .nf #include CURL *curl_easy_init(); .fi .SH DESCRIPTION This function allocates and returns a CURL easy handle. Such a handle is used as input to other functions in the easy interface. This call must have a corresponding call to \fIcurl_easy_cleanup(3)\fP when the operation is complete. The easy handle is used to hold and control a single network transfer. It is encouraged to reuse easy handles for repeated transfers. An alternative way to get a new easy handle is to duplicate an already existing one with \fIcurl_easy_duphandle(3)\fP, which has the upside that it gets all the options that were set in the source handle set in the new copy as well. If you did not already call \fIcurl_global_init(3)\fP before calling this function, \fIcurl_easy_init(3)\fP does it automatically. This may be lethal in multi-threaded cases, if \fIcurl_global_init(3)\fP is not thread-safe in your system, and it may then result in resource problems because there is no corresponding cleanup. You are strongly advised to not allow this automatic behavior, by calling \fIcurl_global_init(3)\fP yourself properly. See the description in \fBlibcurl\fP(3) of global environment requirements for details of how to use this function. .SH EXAMPLE .nf int main(void) { CURL *curl = curl_easy_init(); if(curl) { CURLcode res; curl_easy_setopt(curl, CURLOPT_URL, "https://example.com"); res = curl_easy_perform(curl); curl_easy_cleanup(curl); } } .fi .SH AVAILABILITY Always .SH RETURN VALUE If this function returns NULL, something went wrong and you cannot use the other curl functions. .SH "SEE ALSO" .BR curl_easy_cleanup (3), .BR curl_easy_duphandle (3), .BR curl_easy_perform (3), .BR curl_easy_reset (3), .BR curl_global_init (3), .BR curl_multi_init (3)