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//opt/curlssl/share/man/man3/CURLOPT_DEBUGFUNCTION.3
.\" ************************************************************************** .\" * _ _ ____ _ .\" * Project ___| | | | _ \| | .\" * / __| | | | |_) | | .\" * | (__| |_| | _ <| |___ .\" * \___|\___/|_| \_\_____| .\" * .\" * Copyright (C) 1998 - 2014, 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. .\" * .\" ************************************************************************** .\" .TH CURLOPT_DEBUGFUNCTION 3 "17 Jun 2014" "libcurl 7.37.0" "curl_easy_setopt options" .SH NAME CURLOPT_DEBUGFUNCTION \- debug callback .SH SYNOPSIS .nf #include <curl/curl.h> typedef enum { CURLINFO_TEXT = 0, CURLINFO_HEADER_IN, /* 1 */ CURLINFO_HEADER_OUT, /* 2 */ CURLINFO_DATA_IN, /* 3 */ CURLINFO_DATA_OUT, /* 4 */ CURLINFO_SSL_DATA_IN, /* 5 */ CURLINFO_SSL_DATA_OUT, /* 6 */ CURLINFO_END } curl_infotype; int debug_callback(CURL *handle, curl_infotype type, char *data, size_t size, void *userptr); CURLcode curl_easy_setopt(CURL *handle, CURLOPT_DEBUGFUNCTION, debug_callback); .SH DESCRIPTION Pass a pointer to your callback function, which should match the prototype shown above. \fICURLOPT_DEBUGFUNCTION(3)\fP replaces the standard debug function used when \fICURLOPT_VERBOSE(3)\fP is in effect. This callback receives debug information, as specified in the \fItype\fP argument. This function must return 0. The \fIdata\fP pointed to by the char * passed to this function WILL NOT be zero terminated, but will be exactly of the \fIsize\fP as told by the \fIsize\fP argument. The \fIuserptr\fP argument is the pointer set with \fICURLOPT_DEBUGDATA(3)\fP. Available curl_infotype values: .IP CURLINFO_TEXT The data is informational text. .IP CURLINFO_HEADER_IN The data is header (or header-like) data received from the peer. .IP CURLINFO_HEADER_OUT The data is header (or header-like) data sent to the peer. .IP CURLINFO_DATA_IN The data is protocol data received from the peer. .IP CURLINFO_DATA_OUT The data is protocol data sent to the peer. .IP CURLINFO_SSL_DATA_OUT The data is SSL/TLS (binary) data sent to the peer. .IP CURLINFO_SSL_DATA_IN The data is SSL/TLS (binary) data received from the peer. .SH DEFAULT NULL .SH PROTOCOLS All .SH EXAMPLE http://curl.haxx.se/libcurl/c/debug.html .SH AVAILABILITY Always .SH RETURN VALUE Returns CURLE_OK .SH "SEE ALSO" .BR CURLOPT_VERBOSE "(3), " CURLOPT_DEBUGDATA "(3), "
