1/*************************************************************************** 2 * _ _ ____ _ 3 * Project ___| | | | _ \| | 4 * / __| | | | |_) | | 5 * | (__| |_| | _ <| |___ 6 * \___|\___/|_| \_\_____| 7 * 8 * Copyright (C) 1998 - 2011, Daniel Stenberg, <daniel@haxx.se>, et al. 9 * 10 * This software is licensed as described in the file COPYING, which 11 * you should have received as part of this distribution. The terms 12 * are also available at http://curl.haxx.se/docs/copyright.html. 13 * 14 * You may opt to use, copy, modify, merge, publish, distribute and/or sell 15 * copies of the Software, and permit persons to whom the Software is 16 * furnished to do so, under the terms of the COPYING file. 17 * 18 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY 19 * KIND, either express or implied. 20 * 21 ***************************************************************************/ 22#include "setup.h" 23 24#include <curl/curl.h> 25 26#ifdef HAVE_UNISTD_H 27# include <unistd.h> 28#endif 29 30#define ENABLE_CURLX_PRINTF 31/* use our own printf() functions */ 32#include "curlx.h" 33 34#include "tool_cfgable.h" 35#include "tool_cb_rea.h" 36 37#include "memdebug.h" /* keep this as LAST include */ 38 39/* 40** callback for CURLOPT_READFUNCTION 41*/ 42 43size_t tool_read_cb(void *buffer, size_t sz, size_t nmemb, void *userdata) 44{ 45 ssize_t rc; 46 struct InStruct *in = userdata; 47 48 rc = read(in->fd, buffer, sz*nmemb); 49 if(rc < 0) { 50 if(errno == EAGAIN) { 51 errno = 0; 52 in->config->readbusy = TRUE; 53 return CURL_READFUNC_PAUSE; 54 } 55 /* since size_t is unsigned we can't return negative values fine */ 56 rc = 0; 57 } 58 in->config->readbusy = FALSE; 59 return (size_t)rc; 60} 61 62