text: #ifndef HEADER_CURL_SENDF_H
  #define HEADER_CURL_SENDF_H
  /***************************************************************************
   *                                  _   _ ____  _
   *  Project                     ___| | | |  _ \| |
   *                             / __| | | | |_) | |
   *                            | (__| |_| |  _ <| |___
   *                             \___|\___/|_| \_\_____|
   *
   * Copyright (C) 1998 - 2018, 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.
   *
   ***************************************************************************/
  
  #include "curl_setup.h"
  
  CURLcode Curl_sendf(curl_socket_t sockfd, struct connectdata *,
                      const char *fmt, ...);
  void Curl_infof(struct Curl_easy *, const char *fmt, ...);
  void Curl_failf(struct Curl_easy *, const char *fmt, ...);
  
  #if defined(CURL_DISABLE_VERBOSE_STRINGS)
  
  #if defined(HAVE_VARIADIC_MACROS_C99)
  #define infof(...)  Curl_nop_stmt
  #elif defined(HAVE_VARIADIC_MACROS_GCC)
  #define infof(x...)  Curl_nop_stmt
  #else
  #define infof (void)
  #endif
  
  #else /* CURL_DISABLE_VERBOSE_STRINGS */
  
  #define infof Curl_infof
  
  #endif /* CURL_DISABLE_VERBOSE_STRINGS */
  
  #define failf Curl_failf
  
  #define CLIENTWRITE_BODY   (1<<0)
  #define CLIENTWRITE_HEADER (1<<1)
  #define CLIENTWRITE_BOTH   (CLIENTWRITE_BODY|CLIENTWRITE_HEADER)
  
  CURLcode Curl_client_write(struct connectdata *conn, int type, char *ptr,
                             size_t len) WARN_UNUSED_RESULT;
  
  bool Curl_recv_has_postponed_data(struct connectdata *conn, int sockindex);
  
  /* internal read-function, does plain socket only */
  CURLcode Curl_read_plain(curl_socket_t sockfd,
                           char *buf,
                           size_t bytesfromsocket,
                           ssize_t *n);
  
  ssize_t Curl_recv_plain(struct connectdata *conn, int num, char *buf,
                          size_t len, CURLcode *code);
  ssize_t Curl_send_plain(struct connectdata *conn, int num,
                          const void *mem, size_t len, CURLcode *code);
  
  /* internal read-function, does plain socket, SSL and krb4 */
  CURLcode Curl_read(struct connectdata *conn, curl_socket_t sockfd,
                     char *buf, size_t buffersize,
                     ssize_t *n);
  /* internal write-function, does plain socket, SSL, SCP, SFTP and krb4 */
  CURLcode Curl_write(struct connectdata *conn,
                      curl_socket_t sockfd,
                      const void *mem, size_t len,
                      ssize_t *written);
  
  /* internal write-function, does plain sockets ONLY */
  CURLcode Curl_write_plain(struct connectdata *conn,
                            curl_socket_t sockfd,
                            const void *mem, size_t len,
                            ssize_t *written);
  
  /* the function used to output verbose information */
  int Curl_debug(struct Curl_easy *data, curl_infotype type,
                 char *ptr, size_t size);
  
  
  #endif /* HEADER_CURL_SENDF_H */
  