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/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2012, 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 http://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 "tool_setup.h"
#ifdef HAVE_UNISTD_H
# include <unistd.h>
#endif
#define ENABLE_CURLX_PRINTF
/* use our own printf() functions */
#include "curlx.h"
#include "tool_cfgable.h"
#include "tool_cb_rea.h"
#include "memdebug.h" /* keep this as LAST include */
/*
** callback for CURLOPT_READFUNCTION
*/
size_t tool_read_cb(void *buffer, size_t sz, size_t nmemb, void *userdata)
{
ssize_t rc;
struct InStruct *in = userdata;
rc = read(in->fd, buffer, sz*nmemb);
if(rc < 0) {
if(errno == EAGAIN) {
errno = 0;
in->config->readbusy = TRUE;
return CURL_READFUNC_PAUSE;
}
/* since size_t is unsigned we can't return negative values fine */
rc = 0;
}
in->config->readbusy = FALSE;
return (size_t)rc;
}
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