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3rdparty/curl/share/man/man3/CURLOPT_RANDOM_FILE.3 2 KB
a86c63ca   Hu Chunming   提交三方库文件
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  .\" **************************************************************************
  .\" *                                  _   _ ____  _
  .\" *  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.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 CURLOPT_RANDOM_FILE 3 "November 04, 2020" "libcurl 7.77.0" "curl_easy_setopt options"
  
  .SH NAME
  CURLOPT_RANDOM_FILE \- specify a source for random data
  .SH SYNOPSIS
  #include <curl/curl.h>
  
  CURLcode curl_easy_setopt(CURL *handle, CURLOPT_RANDOM_FILE, char *path);
  .SH DESCRIPTION
  Pass a char * to a null-terminated file name. The file might be used to read
  from to seed the random engine for SSL and more.
  
  The application does not have to keep the string around after setting this
  option.
  .SH DEFAULT
  NULL, not used
  .SH PROTOCOLS
  All
  .SH EXAMPLE
  .nf
  CURL *curl = curl_easy_init();
  if(curl) {
    curl_easy_setopt(curl, CURLOPT_URL, "https://example.com/");
    curl_easy_setopt(curl, CURLOPT_RANDOM_FILE, "junk.txt");
    ret = curl_easy_perform(curl);
    curl_easy_cleanup(curl);
  }
  .fi
  .SH AVAILABILITY
  Always
  .SH RETURN VALUE
  Returns CURLE_OK on success or
  CURLE_OUT_OF_MEMORY if there was insufficient heap space.
  .SH "SEE ALSO"
  .BR CURLOPT_EGDSOCKET "(3), "